16733b39aSJayamohan Kallickal /** 2c4f39bdaSKetan Mukadam * Copyright (C) 2005 - 2015 Emulex 36733b39aSJayamohan Kallickal * All rights reserved. 46733b39aSJayamohan Kallickal * 56733b39aSJayamohan Kallickal * This program is free software; you can redistribute it and/or 66733b39aSJayamohan Kallickal * modify it under the terms of the GNU General Public License version 2 76733b39aSJayamohan Kallickal * as published by the Free Software Foundation. The full GNU General 86733b39aSJayamohan Kallickal * Public License is included in this distribution in the file called COPYING. 96733b39aSJayamohan Kallickal * 104627de93SMinh Tran * Written by: Jayamohan Kallickal (jayamohan.kallickal@avagotech.com) 116733b39aSJayamohan Kallickal * 126733b39aSJayamohan Kallickal * Contact Information: 134627de93SMinh Tran * linux-drivers@avagotech.com 146733b39aSJayamohan Kallickal * 15c4f39bdaSKetan Mukadam * Emulex 16255fa9a3SJayamohan Kallickal * 3333 Susan Street 17255fa9a3SJayamohan Kallickal * Costa Mesa, CA 92626 186733b39aSJayamohan Kallickal */ 19255fa9a3SJayamohan Kallickal 206733b39aSJayamohan Kallickal #include <linux/reboot.h> 216733b39aSJayamohan Kallickal #include <linux/delay.h> 225a0e3ad6STejun Heo #include <linux/slab.h> 236733b39aSJayamohan Kallickal #include <linux/interrupt.h> 246733b39aSJayamohan Kallickal #include <linux/blkdev.h> 256733b39aSJayamohan Kallickal #include <linux/pci.h> 266733b39aSJayamohan Kallickal #include <linux/string.h> 276733b39aSJayamohan Kallickal #include <linux/kernel.h> 286733b39aSJayamohan Kallickal #include <linux/semaphore.h> 29c7acc5b8SJayamohan Kallickal #include <linux/iscsi_boot_sysfs.h> 30acf3368fSPaul Gortmaker #include <linux/module.h> 31ffce3e2eSJayamohan Kallickal #include <linux/bsg-lib.h> 321094cf68SJitendra Bhivare #include <linux/irq_poll.h> 336733b39aSJayamohan Kallickal 346733b39aSJayamohan Kallickal #include <scsi/libiscsi.h> 35ffce3e2eSJayamohan Kallickal #include <scsi/scsi_bsg_iscsi.h> 36ffce3e2eSJayamohan Kallickal #include <scsi/scsi_netlink.h> 376733b39aSJayamohan Kallickal #include <scsi/scsi_transport_iscsi.h> 386733b39aSJayamohan Kallickal #include <scsi/scsi_transport.h> 396733b39aSJayamohan Kallickal #include <scsi/scsi_cmnd.h> 406733b39aSJayamohan Kallickal #include <scsi/scsi_device.h> 416733b39aSJayamohan Kallickal #include <scsi/scsi_host.h> 426733b39aSJayamohan Kallickal #include <scsi/scsi.h> 436733b39aSJayamohan Kallickal #include "be_main.h" 446733b39aSJayamohan Kallickal #include "be_iscsi.h" 456733b39aSJayamohan Kallickal #include "be_mgmt.h" 460a513dd8SJohn Soni Jose #include "be_cmds.h" 476733b39aSJayamohan Kallickal 486733b39aSJayamohan Kallickal static unsigned int be_iopoll_budget = 10; 496733b39aSJayamohan Kallickal static unsigned int be_max_phys_size = 64; 50bfead3b2SJayamohan Kallickal static unsigned int enable_msix = 1; 516733b39aSJayamohan Kallickal 526733b39aSJayamohan Kallickal MODULE_DESCRIPTION(DRV_DESC " " BUILD_STR); 5376d15dbdSJayamohan Kallickal MODULE_VERSION(BUILD_STR); 54c4f39bdaSKetan Mukadam MODULE_AUTHOR("Emulex Corporation"); 556733b39aSJayamohan Kallickal MODULE_LICENSE("GPL"); 566733b39aSJayamohan Kallickal module_param(be_iopoll_budget, int, 0); 576733b39aSJayamohan Kallickal module_param(enable_msix, int, 0); 586733b39aSJayamohan Kallickal module_param(be_max_phys_size, uint, S_IRUGO); 5999bc5d55SJohn Soni Jose MODULE_PARM_DESC(be_max_phys_size, 6099bc5d55SJohn Soni Jose "Maximum Size (In Kilobytes) of physically contiguous " 6199bc5d55SJohn Soni Jose "memory that can be allocated. Range is 16 - 128"); 6299bc5d55SJohn Soni Jose 6399bc5d55SJohn Soni Jose #define beiscsi_disp_param(_name)\ 6499bc5d55SJohn Soni Jose ssize_t \ 6599bc5d55SJohn Soni Jose beiscsi_##_name##_disp(struct device *dev,\ 6699bc5d55SJohn Soni Jose struct device_attribute *attrib, char *buf) \ 6799bc5d55SJohn Soni Jose { \ 6899bc5d55SJohn Soni Jose struct Scsi_Host *shost = class_to_shost(dev);\ 6999bc5d55SJohn Soni Jose struct beiscsi_hba *phba = iscsi_host_priv(shost); \ 7099bc5d55SJohn Soni Jose uint32_t param_val = 0; \ 7199bc5d55SJohn Soni Jose param_val = phba->attr_##_name;\ 7299bc5d55SJohn Soni Jose return snprintf(buf, PAGE_SIZE, "%d\n",\ 7399bc5d55SJohn Soni Jose phba->attr_##_name);\ 7499bc5d55SJohn Soni Jose } 7599bc5d55SJohn Soni Jose 7699bc5d55SJohn Soni Jose #define beiscsi_change_param(_name, _minval, _maxval, _defaval)\ 7799bc5d55SJohn Soni Jose int \ 7899bc5d55SJohn Soni Jose beiscsi_##_name##_change(struct beiscsi_hba *phba, uint32_t val)\ 7999bc5d55SJohn Soni Jose {\ 8099bc5d55SJohn Soni Jose if (val >= _minval && val <= _maxval) {\ 8199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,\ 8299bc5d55SJohn Soni Jose "BA_%d : beiscsi_"#_name" updated "\ 8399bc5d55SJohn Soni Jose "from 0x%x ==> 0x%x\n",\ 8499bc5d55SJohn Soni Jose phba->attr_##_name, val); \ 8599bc5d55SJohn Soni Jose phba->attr_##_name = val;\ 8699bc5d55SJohn Soni Jose return 0;\ 8799bc5d55SJohn Soni Jose } \ 8899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, \ 8999bc5d55SJohn Soni Jose "BA_%d beiscsi_"#_name" attribute "\ 9099bc5d55SJohn Soni Jose "cannot be updated to 0x%x, "\ 9199bc5d55SJohn Soni Jose "range allowed is ["#_minval" - "#_maxval"]\n", val);\ 9299bc5d55SJohn Soni Jose return -EINVAL;\ 9399bc5d55SJohn Soni Jose } 9499bc5d55SJohn Soni Jose 9599bc5d55SJohn Soni Jose #define beiscsi_store_param(_name) \ 9699bc5d55SJohn Soni Jose ssize_t \ 9799bc5d55SJohn Soni Jose beiscsi_##_name##_store(struct device *dev,\ 9899bc5d55SJohn Soni Jose struct device_attribute *attr, const char *buf,\ 9999bc5d55SJohn Soni Jose size_t count) \ 10099bc5d55SJohn Soni Jose { \ 10199bc5d55SJohn Soni Jose struct Scsi_Host *shost = class_to_shost(dev);\ 10299bc5d55SJohn Soni Jose struct beiscsi_hba *phba = iscsi_host_priv(shost);\ 10399bc5d55SJohn Soni Jose uint32_t param_val = 0;\ 10499bc5d55SJohn Soni Jose if (!isdigit(buf[0]))\ 10599bc5d55SJohn Soni Jose return -EINVAL;\ 10699bc5d55SJohn Soni Jose if (sscanf(buf, "%i", ¶m_val) != 1)\ 10799bc5d55SJohn Soni Jose return -EINVAL;\ 10899bc5d55SJohn Soni Jose if (beiscsi_##_name##_change(phba, param_val) == 0) \ 10999bc5d55SJohn Soni Jose return strlen(buf);\ 11099bc5d55SJohn Soni Jose else \ 11199bc5d55SJohn Soni Jose return -EINVAL;\ 11299bc5d55SJohn Soni Jose } 11399bc5d55SJohn Soni Jose 11499bc5d55SJohn Soni Jose #define beiscsi_init_param(_name, _minval, _maxval, _defval) \ 11599bc5d55SJohn Soni Jose int \ 11699bc5d55SJohn Soni Jose beiscsi_##_name##_init(struct beiscsi_hba *phba, uint32_t val) \ 11799bc5d55SJohn Soni Jose { \ 11899bc5d55SJohn Soni Jose if (val >= _minval && val <= _maxval) {\ 11999bc5d55SJohn Soni Jose phba->attr_##_name = val;\ 12099bc5d55SJohn Soni Jose return 0;\ 12199bc5d55SJohn Soni Jose } \ 12299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,\ 12399bc5d55SJohn Soni Jose "BA_%d beiscsi_"#_name" attribute " \ 12499bc5d55SJohn Soni Jose "cannot be updated to 0x%x, "\ 12599bc5d55SJohn Soni Jose "range allowed is ["#_minval" - "#_maxval"]\n", val);\ 12699bc5d55SJohn Soni Jose phba->attr_##_name = _defval;\ 12799bc5d55SJohn Soni Jose return -EINVAL;\ 12899bc5d55SJohn Soni Jose } 12999bc5d55SJohn Soni Jose 13099bc5d55SJohn Soni Jose #define BEISCSI_RW_ATTR(_name, _minval, _maxval, _defval, _descp) \ 13199bc5d55SJohn Soni Jose static uint beiscsi_##_name = _defval;\ 13299bc5d55SJohn Soni Jose module_param(beiscsi_##_name, uint, S_IRUGO);\ 13399bc5d55SJohn Soni Jose MODULE_PARM_DESC(beiscsi_##_name, _descp);\ 13499bc5d55SJohn Soni Jose beiscsi_disp_param(_name)\ 13599bc5d55SJohn Soni Jose beiscsi_change_param(_name, _minval, _maxval, _defval)\ 13699bc5d55SJohn Soni Jose beiscsi_store_param(_name)\ 13799bc5d55SJohn Soni Jose beiscsi_init_param(_name, _minval, _maxval, _defval)\ 13899bc5d55SJohn Soni Jose DEVICE_ATTR(beiscsi_##_name, S_IRUGO | S_IWUSR,\ 13999bc5d55SJohn Soni Jose beiscsi_##_name##_disp, beiscsi_##_name##_store) 14099bc5d55SJohn Soni Jose 14199bc5d55SJohn Soni Jose /* 14299bc5d55SJohn Soni Jose * When new log level added update the 14399bc5d55SJohn Soni Jose * the MAX allowed value for log_enable 14499bc5d55SJohn Soni Jose */ 14599bc5d55SJohn Soni Jose BEISCSI_RW_ATTR(log_enable, 0x00, 14699bc5d55SJohn Soni Jose 0xFF, 0x00, "Enable logging Bit Mask\n" 14799bc5d55SJohn Soni Jose "\t\t\t\tInitialization Events : 0x01\n" 14899bc5d55SJohn Soni Jose "\t\t\t\tMailbox Events : 0x02\n" 14999bc5d55SJohn Soni Jose "\t\t\t\tMiscellaneous Events : 0x04\n" 15099bc5d55SJohn Soni Jose "\t\t\t\tError Handling : 0x08\n" 15199bc5d55SJohn Soni Jose "\t\t\t\tIO Path Events : 0x10\n" 152afb96058SJayamohan Kallickal "\t\t\t\tConfiguration Path : 0x20\n" 153afb96058SJayamohan Kallickal "\t\t\t\tiSCSI Protocol : 0x40\n"); 15499bc5d55SJohn Soni Jose 1555cac7596SJohn Soni Jose DEVICE_ATTR(beiscsi_drvr_ver, S_IRUGO, beiscsi_drvr_ver_disp, NULL); 15626000db7SJohn Soni Jose DEVICE_ATTR(beiscsi_adapter_family, S_IRUGO, beiscsi_adap_family_disp, NULL); 15722661e25SJayamohan Kallickal DEVICE_ATTR(beiscsi_fw_ver, S_IRUGO, beiscsi_fw_ver_disp, NULL); 158d3fea9afSJayamohan Kallickal DEVICE_ATTR(beiscsi_phys_port, S_IRUGO, beiscsi_phys_port_disp, NULL); 1596103c1f7SJayamohan Kallickal DEVICE_ATTR(beiscsi_active_session_count, S_IRUGO, 1606103c1f7SJayamohan Kallickal beiscsi_active_session_disp, NULL); 1616103c1f7SJayamohan Kallickal DEVICE_ATTR(beiscsi_free_session_count, S_IRUGO, 1626103c1f7SJayamohan Kallickal beiscsi_free_session_disp, NULL); 16399bc5d55SJohn Soni Jose struct device_attribute *beiscsi_attrs[] = { 16499bc5d55SJohn Soni Jose &dev_attr_beiscsi_log_enable, 1655cac7596SJohn Soni Jose &dev_attr_beiscsi_drvr_ver, 16626000db7SJohn Soni Jose &dev_attr_beiscsi_adapter_family, 16722661e25SJayamohan Kallickal &dev_attr_beiscsi_fw_ver, 1686103c1f7SJayamohan Kallickal &dev_attr_beiscsi_active_session_count, 1696103c1f7SJayamohan Kallickal &dev_attr_beiscsi_free_session_count, 170d3fea9afSJayamohan Kallickal &dev_attr_beiscsi_phys_port, 17199bc5d55SJohn Soni Jose NULL, 17299bc5d55SJohn Soni Jose }; 1736733b39aSJayamohan Kallickal 1746763daaeSJohn Soni Jose static char const *cqe_desc[] = { 1756763daaeSJohn Soni Jose "RESERVED_DESC", 1766763daaeSJohn Soni Jose "SOL_CMD_COMPLETE", 1776763daaeSJohn Soni Jose "SOL_CMD_KILLED_DATA_DIGEST_ERR", 1786763daaeSJohn Soni Jose "CXN_KILLED_PDU_SIZE_EXCEEDS_DSL", 1796763daaeSJohn Soni Jose "CXN_KILLED_BURST_LEN_MISMATCH", 1806763daaeSJohn Soni Jose "CXN_KILLED_AHS_RCVD", 1816763daaeSJohn Soni Jose "CXN_KILLED_HDR_DIGEST_ERR", 1826763daaeSJohn Soni Jose "CXN_KILLED_UNKNOWN_HDR", 1836763daaeSJohn Soni Jose "CXN_KILLED_STALE_ITT_TTT_RCVD", 1846763daaeSJohn Soni Jose "CXN_KILLED_INVALID_ITT_TTT_RCVD", 1856763daaeSJohn Soni Jose "CXN_KILLED_RST_RCVD", 1866763daaeSJohn Soni Jose "CXN_KILLED_TIMED_OUT", 1876763daaeSJohn Soni Jose "CXN_KILLED_RST_SENT", 1886763daaeSJohn Soni Jose "CXN_KILLED_FIN_RCVD", 1896763daaeSJohn Soni Jose "CXN_KILLED_BAD_UNSOL_PDU_RCVD", 1906763daaeSJohn Soni Jose "CXN_KILLED_BAD_WRB_INDEX_ERROR", 1916763daaeSJohn Soni Jose "CXN_KILLED_OVER_RUN_RESIDUAL", 1926763daaeSJohn Soni Jose "CXN_KILLED_UNDER_RUN_RESIDUAL", 1936763daaeSJohn Soni Jose "CMD_KILLED_INVALID_STATSN_RCVD", 1946763daaeSJohn Soni Jose "CMD_KILLED_INVALID_R2T_RCVD", 1956763daaeSJohn Soni Jose "CMD_CXN_KILLED_LUN_INVALID", 1966763daaeSJohn Soni Jose "CMD_CXN_KILLED_ICD_INVALID", 1976763daaeSJohn Soni Jose "CMD_CXN_KILLED_ITT_INVALID", 1986763daaeSJohn Soni Jose "CMD_CXN_KILLED_SEQ_OUTOFORDER", 1996763daaeSJohn Soni Jose "CMD_CXN_KILLED_INVALID_DATASN_RCVD", 2006763daaeSJohn Soni Jose "CXN_INVALIDATE_NOTIFY", 2016763daaeSJohn Soni Jose "CXN_INVALIDATE_INDEX_NOTIFY", 2026763daaeSJohn Soni Jose "CMD_INVALIDATED_NOTIFY", 2036763daaeSJohn Soni Jose "UNSOL_HDR_NOTIFY", 2046763daaeSJohn Soni Jose "UNSOL_DATA_NOTIFY", 2056763daaeSJohn Soni Jose "UNSOL_DATA_DIGEST_ERROR_NOTIFY", 2066763daaeSJohn Soni Jose "DRIVERMSG_NOTIFY", 2076763daaeSJohn Soni Jose "CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN", 2086763daaeSJohn Soni Jose "SOL_CMD_KILLED_DIF_ERR", 2096763daaeSJohn Soni Jose "CXN_KILLED_SYN_RCVD", 2106763daaeSJohn Soni Jose "CXN_KILLED_IMM_DATA_RCVD" 2116763daaeSJohn Soni Jose }; 2126763daaeSJohn Soni Jose 2136733b39aSJayamohan Kallickal static int beiscsi_slave_configure(struct scsi_device *sdev) 2146733b39aSJayamohan Kallickal { 2156733b39aSJayamohan Kallickal blk_queue_max_segment_size(sdev->request_queue, 65536); 2166733b39aSJayamohan Kallickal return 0; 2176733b39aSJayamohan Kallickal } 2186733b39aSJayamohan Kallickal 2194183122dSJayamohan Kallickal static int beiscsi_eh_abort(struct scsi_cmnd *sc) 2204183122dSJayamohan Kallickal { 2214183122dSJayamohan Kallickal struct iscsi_cls_session *cls_session; 2224183122dSJayamohan Kallickal struct iscsi_task *aborted_task = (struct iscsi_task *)sc->SCp.ptr; 2234183122dSJayamohan Kallickal struct beiscsi_io_task *aborted_io_task; 2244183122dSJayamohan Kallickal struct iscsi_conn *conn; 2254183122dSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 2264183122dSJayamohan Kallickal struct beiscsi_hba *phba; 2274183122dSJayamohan Kallickal struct iscsi_session *session; 2284183122dSJayamohan Kallickal struct invalidate_command_table *inv_tbl; 2293cbb7a74SJayamohan Kallickal struct be_dma_mem nonemb_cmd; 2304183122dSJayamohan Kallickal unsigned int cid, tag, num_invalidate; 2311957aa7fSJayamohan Kallickal int rc; 2324183122dSJayamohan Kallickal 2334183122dSJayamohan Kallickal cls_session = starget_to_session(scsi_target(sc->device)); 2344183122dSJayamohan Kallickal session = cls_session->dd_data; 2354183122dSJayamohan Kallickal 236659743b0SShlomo Pongratz spin_lock_bh(&session->frwd_lock); 2374183122dSJayamohan Kallickal if (!aborted_task || !aborted_task->sc) { 2384183122dSJayamohan Kallickal /* we raced */ 239659743b0SShlomo Pongratz spin_unlock_bh(&session->frwd_lock); 2404183122dSJayamohan Kallickal return SUCCESS; 2414183122dSJayamohan Kallickal } 2424183122dSJayamohan Kallickal 2434183122dSJayamohan Kallickal aborted_io_task = aborted_task->dd_data; 2444183122dSJayamohan Kallickal if (!aborted_io_task->scsi_cmnd) { 2454183122dSJayamohan Kallickal /* raced or invalid command */ 246659743b0SShlomo Pongratz spin_unlock_bh(&session->frwd_lock); 2474183122dSJayamohan Kallickal return SUCCESS; 2484183122dSJayamohan Kallickal } 249659743b0SShlomo Pongratz spin_unlock_bh(&session->frwd_lock); 2507626c06bSJayamohan Kallickal /* Invalidate WRB Posted for this Task */ 2517626c06bSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, invld, 2527626c06bSJayamohan Kallickal aborted_io_task->pwrb_handle->pwrb, 2537626c06bSJayamohan Kallickal 1); 2547626c06bSJayamohan Kallickal 2554183122dSJayamohan Kallickal conn = aborted_task->conn; 2564183122dSJayamohan Kallickal beiscsi_conn = conn->dd_data; 2574183122dSJayamohan Kallickal phba = beiscsi_conn->phba; 2584183122dSJayamohan Kallickal 2594183122dSJayamohan Kallickal /* invalidate iocb */ 2604183122dSJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 2614183122dSJayamohan Kallickal inv_tbl = phba->inv_tbl; 2624183122dSJayamohan Kallickal memset(inv_tbl, 0x0, sizeof(*inv_tbl)); 2634183122dSJayamohan Kallickal inv_tbl->cid = cid; 2644183122dSJayamohan Kallickal inv_tbl->icd = aborted_io_task->psgl_handle->sgl_index; 2654183122dSJayamohan Kallickal num_invalidate = 1; 2663cbb7a74SJayamohan Kallickal nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev, 2673cbb7a74SJayamohan Kallickal sizeof(struct invalidate_commands_params_in), 2683cbb7a74SJayamohan Kallickal &nonemb_cmd.dma); 2693cbb7a74SJayamohan Kallickal if (nonemb_cmd.va == NULL) { 27099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH, 27199bc5d55SJohn Soni Jose "BM_%d : Failed to allocate memory for" 2723cbb7a74SJayamohan Kallickal "mgmt_invalidate_icds\n"); 2733cbb7a74SJayamohan Kallickal return FAILED; 2743cbb7a74SJayamohan Kallickal } 2753cbb7a74SJayamohan Kallickal nonemb_cmd.size = sizeof(struct invalidate_commands_params_in); 2763cbb7a74SJayamohan Kallickal 2773cbb7a74SJayamohan Kallickal tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, 2783cbb7a74SJayamohan Kallickal cid, &nonemb_cmd); 2794183122dSJayamohan Kallickal if (!tag) { 28099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_EH, 28199bc5d55SJohn Soni Jose "BM_%d : mgmt_invalidate_icds could not be" 2824183122dSJayamohan Kallickal "submitted\n"); 2833cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 2843cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 2853cbb7a74SJayamohan Kallickal 2864183122dSJayamohan Kallickal return FAILED; 2874183122dSJayamohan Kallickal } 288e175defeSJohn Soni Jose 28988840332SJitendra Bhivare rc = beiscsi_mccq_compl_wait(phba, tag, NULL, &nonemb_cmd); 2901957aa7fSJayamohan Kallickal if (rc != -EBUSY) 2913cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 2923cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 2931957aa7fSJayamohan Kallickal 2944183122dSJayamohan Kallickal return iscsi_eh_abort(sc); 2954183122dSJayamohan Kallickal } 2964183122dSJayamohan Kallickal 2974183122dSJayamohan Kallickal static int beiscsi_eh_device_reset(struct scsi_cmnd *sc) 2984183122dSJayamohan Kallickal { 2994183122dSJayamohan Kallickal struct iscsi_task *abrt_task; 3004183122dSJayamohan Kallickal struct beiscsi_io_task *abrt_io_task; 3014183122dSJayamohan Kallickal struct iscsi_conn *conn; 3024183122dSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 3034183122dSJayamohan Kallickal struct beiscsi_hba *phba; 3044183122dSJayamohan Kallickal struct iscsi_session *session; 3054183122dSJayamohan Kallickal struct iscsi_cls_session *cls_session; 3064183122dSJayamohan Kallickal struct invalidate_command_table *inv_tbl; 3073cbb7a74SJayamohan Kallickal struct be_dma_mem nonemb_cmd; 3084183122dSJayamohan Kallickal unsigned int cid, tag, i, num_invalidate; 3091957aa7fSJayamohan Kallickal int rc; 3104183122dSJayamohan Kallickal 3114183122dSJayamohan Kallickal /* invalidate iocbs */ 3124183122dSJayamohan Kallickal cls_session = starget_to_session(scsi_target(sc->device)); 3134183122dSJayamohan Kallickal session = cls_session->dd_data; 314659743b0SShlomo Pongratz spin_lock_bh(&session->frwd_lock); 315db7f7709SJayamohan Kallickal if (!session->leadconn || session->state != ISCSI_STATE_LOGGED_IN) { 316659743b0SShlomo Pongratz spin_unlock_bh(&session->frwd_lock); 317db7f7709SJayamohan Kallickal return FAILED; 318db7f7709SJayamohan Kallickal } 3194183122dSJayamohan Kallickal conn = session->leadconn; 3204183122dSJayamohan Kallickal beiscsi_conn = conn->dd_data; 3214183122dSJayamohan Kallickal phba = beiscsi_conn->phba; 3224183122dSJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 3234183122dSJayamohan Kallickal inv_tbl = phba->inv_tbl; 3244183122dSJayamohan Kallickal memset(inv_tbl, 0x0, sizeof(*inv_tbl) * BE2_CMDS_PER_CXN); 3254183122dSJayamohan Kallickal num_invalidate = 0; 3264183122dSJayamohan Kallickal for (i = 0; i < conn->session->cmds_max; i++) { 3274183122dSJayamohan Kallickal abrt_task = conn->session->cmds[i]; 3284183122dSJayamohan Kallickal abrt_io_task = abrt_task->dd_data; 3294183122dSJayamohan Kallickal if (!abrt_task->sc || abrt_task->state == ISCSI_TASK_FREE) 3304183122dSJayamohan Kallickal continue; 3314183122dSJayamohan Kallickal 332126e964aSMike Christie if (sc->device->lun != abrt_task->sc->device->lun) 3334183122dSJayamohan Kallickal continue; 3344183122dSJayamohan Kallickal 3357626c06bSJayamohan Kallickal /* Invalidate WRB Posted for this Task */ 3367626c06bSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, invld, 3377626c06bSJayamohan Kallickal abrt_io_task->pwrb_handle->pwrb, 3387626c06bSJayamohan Kallickal 1); 3397626c06bSJayamohan Kallickal 3404183122dSJayamohan Kallickal inv_tbl->cid = cid; 3414183122dSJayamohan Kallickal inv_tbl->icd = abrt_io_task->psgl_handle->sgl_index; 3424183122dSJayamohan Kallickal num_invalidate++; 3434183122dSJayamohan Kallickal inv_tbl++; 3444183122dSJayamohan Kallickal } 345659743b0SShlomo Pongratz spin_unlock_bh(&session->frwd_lock); 3464183122dSJayamohan Kallickal inv_tbl = phba->inv_tbl; 3474183122dSJayamohan Kallickal 3483cbb7a74SJayamohan Kallickal nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev, 3493cbb7a74SJayamohan Kallickal sizeof(struct invalidate_commands_params_in), 3503cbb7a74SJayamohan Kallickal &nonemb_cmd.dma); 3513cbb7a74SJayamohan Kallickal if (nonemb_cmd.va == NULL) { 35299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH, 35399bc5d55SJohn Soni Jose "BM_%d : Failed to allocate memory for" 3543cbb7a74SJayamohan Kallickal "mgmt_invalidate_icds\n"); 3553cbb7a74SJayamohan Kallickal return FAILED; 3563cbb7a74SJayamohan Kallickal } 3573cbb7a74SJayamohan Kallickal nonemb_cmd.size = sizeof(struct invalidate_commands_params_in); 3583cbb7a74SJayamohan Kallickal memset(nonemb_cmd.va, 0, nonemb_cmd.size); 3593cbb7a74SJayamohan Kallickal tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, 3603cbb7a74SJayamohan Kallickal cid, &nonemb_cmd); 3614183122dSJayamohan Kallickal if (!tag) { 36299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_EH, 36399bc5d55SJohn Soni Jose "BM_%d : mgmt_invalidate_icds could not be" 3644183122dSJayamohan Kallickal " submitted\n"); 3653cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 3663cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 3674183122dSJayamohan Kallickal return FAILED; 3684183122dSJayamohan Kallickal } 369e175defeSJohn Soni Jose 37088840332SJitendra Bhivare rc = beiscsi_mccq_compl_wait(phba, tag, NULL, &nonemb_cmd); 3711957aa7fSJayamohan Kallickal if (rc != -EBUSY) 3723cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 3733cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 3744183122dSJayamohan Kallickal return iscsi_eh_device_reset(sc); 3754183122dSJayamohan Kallickal } 3764183122dSJayamohan Kallickal 377c7acc5b8SJayamohan Kallickal static ssize_t beiscsi_show_boot_tgt_info(void *data, int type, char *buf) 378c7acc5b8SJayamohan Kallickal { 379c7acc5b8SJayamohan Kallickal struct beiscsi_hba *phba = data; 380f457a46fSMike Christie struct mgmt_session_info *boot_sess = &phba->boot_sess; 381f457a46fSMike Christie struct mgmt_conn_info *boot_conn = &boot_sess->conn_list[0]; 382c7acc5b8SJayamohan Kallickal char *str = buf; 383c7acc5b8SJayamohan Kallickal int rc; 384c7acc5b8SJayamohan Kallickal 385c7acc5b8SJayamohan Kallickal switch (type) { 386c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NAME: 387c7acc5b8SJayamohan Kallickal rc = sprintf(buf, "%.*s\n", 388f457a46fSMike Christie (int)strlen(boot_sess->target_name), 389f457a46fSMike Christie (char *)&boot_sess->target_name); 390c7acc5b8SJayamohan Kallickal break; 391c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_IP_ADDR: 392f457a46fSMike Christie if (boot_conn->dest_ipaddr.ip_type == 0x1) 393c7acc5b8SJayamohan Kallickal rc = sprintf(buf, "%pI4\n", 3940e43895eSMike Christie (char *)&boot_conn->dest_ipaddr.addr); 395c7acc5b8SJayamohan Kallickal else 396c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%pI6\n", 3970e43895eSMike Christie (char *)&boot_conn->dest_ipaddr.addr); 398c7acc5b8SJayamohan Kallickal break; 399c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_PORT: 400f457a46fSMike Christie rc = sprintf(str, "%d\n", boot_conn->dest_port); 401c7acc5b8SJayamohan Kallickal break; 402c7acc5b8SJayamohan Kallickal 403c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_NAME: 404c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 405f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 406c7acc5b8SJayamohan Kallickal target_chap_name_length, 407f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 408f457a46fSMike Christie auth_data.chap.target_chap_name); 409c7acc5b8SJayamohan Kallickal break; 410c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_SECRET: 411c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 412f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 413c7acc5b8SJayamohan Kallickal target_secret_length, 414f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 415f457a46fSMike Christie auth_data.chap.target_secret); 416c7acc5b8SJayamohan Kallickal break; 417c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_NAME: 418c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 419f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 420c7acc5b8SJayamohan Kallickal intr_chap_name_length, 421f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 422f457a46fSMike Christie auth_data.chap.intr_chap_name); 423c7acc5b8SJayamohan Kallickal break; 424c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 425c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 426f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 427c7acc5b8SJayamohan Kallickal intr_secret_length, 428f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 429f457a46fSMike Christie auth_data.chap.intr_secret); 430c7acc5b8SJayamohan Kallickal break; 431c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_FLAGS: 432c7acc5b8SJayamohan Kallickal rc = sprintf(str, "2\n"); 433c7acc5b8SJayamohan Kallickal break; 434c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NIC_ASSOC: 435c7acc5b8SJayamohan Kallickal rc = sprintf(str, "0\n"); 436c7acc5b8SJayamohan Kallickal break; 437c7acc5b8SJayamohan Kallickal default: 438c7acc5b8SJayamohan Kallickal rc = -ENOSYS; 439c7acc5b8SJayamohan Kallickal break; 440c7acc5b8SJayamohan Kallickal } 441c7acc5b8SJayamohan Kallickal return rc; 442c7acc5b8SJayamohan Kallickal } 443c7acc5b8SJayamohan Kallickal 444c7acc5b8SJayamohan Kallickal static ssize_t beiscsi_show_boot_ini_info(void *data, int type, char *buf) 445c7acc5b8SJayamohan Kallickal { 446c7acc5b8SJayamohan Kallickal struct beiscsi_hba *phba = data; 447c7acc5b8SJayamohan Kallickal char *str = buf; 448c7acc5b8SJayamohan Kallickal int rc; 449c7acc5b8SJayamohan Kallickal 450c7acc5b8SJayamohan Kallickal switch (type) { 451c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_INI_INITIATOR_NAME: 452c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%s\n", phba->boot_sess.initiator_iscsiname); 453c7acc5b8SJayamohan Kallickal break; 454c7acc5b8SJayamohan Kallickal default: 455c7acc5b8SJayamohan Kallickal rc = -ENOSYS; 456c7acc5b8SJayamohan Kallickal break; 457c7acc5b8SJayamohan Kallickal } 458c7acc5b8SJayamohan Kallickal return rc; 459c7acc5b8SJayamohan Kallickal } 460c7acc5b8SJayamohan Kallickal 461c7acc5b8SJayamohan Kallickal static ssize_t beiscsi_show_boot_eth_info(void *data, int type, char *buf) 462c7acc5b8SJayamohan Kallickal { 463c7acc5b8SJayamohan Kallickal struct beiscsi_hba *phba = data; 464c7acc5b8SJayamohan Kallickal char *str = buf; 465c7acc5b8SJayamohan Kallickal int rc; 466c7acc5b8SJayamohan Kallickal 467c7acc5b8SJayamohan Kallickal switch (type) { 468c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_FLAGS: 469c7acc5b8SJayamohan Kallickal rc = sprintf(str, "2\n"); 470c7acc5b8SJayamohan Kallickal break; 471c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_INDEX: 472c7acc5b8SJayamohan Kallickal rc = sprintf(str, "0\n"); 473c7acc5b8SJayamohan Kallickal break; 474c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_MAC: 4750e43895eSMike Christie rc = beiscsi_get_macaddr(str, phba); 476c7acc5b8SJayamohan Kallickal break; 477c7acc5b8SJayamohan Kallickal default: 478c7acc5b8SJayamohan Kallickal rc = -ENOSYS; 479c7acc5b8SJayamohan Kallickal break; 480c7acc5b8SJayamohan Kallickal } 481c7acc5b8SJayamohan Kallickal return rc; 482c7acc5b8SJayamohan Kallickal } 483c7acc5b8SJayamohan Kallickal 484c7acc5b8SJayamohan Kallickal 485587a1f16SAl Viro static umode_t beiscsi_tgt_get_attr_visibility(void *data, int type) 486c7acc5b8SJayamohan Kallickal { 487587a1f16SAl Viro umode_t rc; 488c7acc5b8SJayamohan Kallickal 489c7acc5b8SJayamohan Kallickal switch (type) { 490c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NAME: 491c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_IP_ADDR: 492c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_PORT: 493c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_NAME: 494c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_SECRET: 495c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_NAME: 496c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 497c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NIC_ASSOC: 498c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_FLAGS: 499c7acc5b8SJayamohan Kallickal rc = S_IRUGO; 500c7acc5b8SJayamohan Kallickal break; 501c7acc5b8SJayamohan Kallickal default: 502c7acc5b8SJayamohan Kallickal rc = 0; 503c7acc5b8SJayamohan Kallickal break; 504c7acc5b8SJayamohan Kallickal } 505c7acc5b8SJayamohan Kallickal return rc; 506c7acc5b8SJayamohan Kallickal } 507c7acc5b8SJayamohan Kallickal 508587a1f16SAl Viro static umode_t beiscsi_ini_get_attr_visibility(void *data, int type) 509c7acc5b8SJayamohan Kallickal { 510587a1f16SAl Viro umode_t rc; 511c7acc5b8SJayamohan Kallickal 512c7acc5b8SJayamohan Kallickal switch (type) { 513c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_INI_INITIATOR_NAME: 514c7acc5b8SJayamohan Kallickal rc = S_IRUGO; 515c7acc5b8SJayamohan Kallickal break; 516c7acc5b8SJayamohan Kallickal default: 517c7acc5b8SJayamohan Kallickal rc = 0; 518c7acc5b8SJayamohan Kallickal break; 519c7acc5b8SJayamohan Kallickal } 520c7acc5b8SJayamohan Kallickal return rc; 521c7acc5b8SJayamohan Kallickal } 522c7acc5b8SJayamohan Kallickal 523c7acc5b8SJayamohan Kallickal 524587a1f16SAl Viro static umode_t beiscsi_eth_get_attr_visibility(void *data, int type) 525c7acc5b8SJayamohan Kallickal { 526587a1f16SAl Viro umode_t rc; 527c7acc5b8SJayamohan Kallickal 528c7acc5b8SJayamohan Kallickal switch (type) { 529c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_FLAGS: 530c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_MAC: 531c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_INDEX: 532c7acc5b8SJayamohan Kallickal rc = S_IRUGO; 533c7acc5b8SJayamohan Kallickal break; 534c7acc5b8SJayamohan Kallickal default: 535c7acc5b8SJayamohan Kallickal rc = 0; 536c7acc5b8SJayamohan Kallickal break; 537c7acc5b8SJayamohan Kallickal } 538c7acc5b8SJayamohan Kallickal return rc; 539c7acc5b8SJayamohan Kallickal } 540c7acc5b8SJayamohan Kallickal 541bfead3b2SJayamohan Kallickal /*------------------- PCI Driver operations and data ----------------- */ 5429baa3c34SBenoit Taine static const struct pci_device_id beiscsi_pci_id_table[] = { 543bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) }, 544f98c96b0SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) }, 545bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) }, 546bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) }, 547bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) }, 548139a1b1eSJohn Soni Jose { PCI_DEVICE(ELX_VENDOR_ID, OC_SKH_ID1) }, 549bfead3b2SJayamohan Kallickal { 0 } 550bfead3b2SJayamohan Kallickal }; 551bfead3b2SJayamohan Kallickal MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table); 552bfead3b2SJayamohan Kallickal 55399bc5d55SJohn Soni Jose 5546733b39aSJayamohan Kallickal static struct scsi_host_template beiscsi_sht = { 5556733b39aSJayamohan Kallickal .module = THIS_MODULE, 556c4f39bdaSKetan Mukadam .name = "Emulex 10Gbe open-iscsi Initiator Driver", 5576733b39aSJayamohan Kallickal .proc_name = DRV_NAME, 5586733b39aSJayamohan Kallickal .queuecommand = iscsi_queuecommand, 559db5ed4dfSChristoph Hellwig .change_queue_depth = scsi_change_queue_depth, 5606733b39aSJayamohan Kallickal .slave_configure = beiscsi_slave_configure, 5616733b39aSJayamohan Kallickal .target_alloc = iscsi_target_alloc, 5624183122dSJayamohan Kallickal .eh_abort_handler = beiscsi_eh_abort, 5634183122dSJayamohan Kallickal .eh_device_reset_handler = beiscsi_eh_device_reset, 564309ce156SJayamohan Kallickal .eh_target_reset_handler = iscsi_eh_session_reset, 56599bc5d55SJohn Soni Jose .shost_attrs = beiscsi_attrs, 5666733b39aSJayamohan Kallickal .sg_tablesize = BEISCSI_SGLIST_ELEMENTS, 5676733b39aSJayamohan Kallickal .can_queue = BE2_IO_DEPTH, 5686733b39aSJayamohan Kallickal .this_id = -1, 5696733b39aSJayamohan Kallickal .max_sectors = BEISCSI_MAX_SECTORS, 5706733b39aSJayamohan Kallickal .cmd_per_lun = BEISCSI_CMD_PER_LUN, 5716733b39aSJayamohan Kallickal .use_clustering = ENABLE_CLUSTERING, 572ffce3e2eSJayamohan Kallickal .vendor_id = SCSI_NL_VID_TYPE_PCI | BE_VENDOR_ID, 573c40ecc12SChristoph Hellwig .track_queue_depth = 1, 5746733b39aSJayamohan Kallickal }; 5756733b39aSJayamohan Kallickal 576bfead3b2SJayamohan Kallickal static struct scsi_transport_template *beiscsi_scsi_transport; 5776733b39aSJayamohan Kallickal 5786733b39aSJayamohan Kallickal static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev) 5796733b39aSJayamohan Kallickal { 5806733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 5816733b39aSJayamohan Kallickal struct Scsi_Host *shost; 5826733b39aSJayamohan Kallickal 5836733b39aSJayamohan Kallickal shost = iscsi_host_alloc(&beiscsi_sht, sizeof(*phba), 0); 5846733b39aSJayamohan Kallickal if (!shost) { 58599bc5d55SJohn Soni Jose dev_err(&pcidev->dev, 58699bc5d55SJohn Soni Jose "beiscsi_hba_alloc - iscsi_host_alloc failed\n"); 5876733b39aSJayamohan Kallickal return NULL; 5886733b39aSJayamohan Kallickal } 5896733b39aSJayamohan Kallickal shost->max_id = BE2_MAX_SESSIONS; 5906733b39aSJayamohan Kallickal shost->max_channel = 0; 5916733b39aSJayamohan Kallickal shost->max_cmd_len = BEISCSI_MAX_CMD_LEN; 5926733b39aSJayamohan Kallickal shost->max_lun = BEISCSI_NUM_MAX_LUN; 5936733b39aSJayamohan Kallickal shost->transportt = beiscsi_scsi_transport; 5946733b39aSJayamohan Kallickal phba = iscsi_host_priv(shost); 5956733b39aSJayamohan Kallickal memset(phba, 0, sizeof(*phba)); 5966733b39aSJayamohan Kallickal phba->shost = shost; 5976733b39aSJayamohan Kallickal phba->pcidev = pci_dev_get(pcidev); 5982807afb7SJayamohan Kallickal pci_set_drvdata(pcidev, phba); 5990e43895eSMike Christie phba->interface_handle = 0xFFFFFFFF; 6006733b39aSJayamohan Kallickal 6016733b39aSJayamohan Kallickal return phba; 6026733b39aSJayamohan Kallickal } 6036733b39aSJayamohan Kallickal 6046733b39aSJayamohan Kallickal static void beiscsi_unmap_pci_function(struct beiscsi_hba *phba) 6056733b39aSJayamohan Kallickal { 6066733b39aSJayamohan Kallickal if (phba->csr_va) { 6076733b39aSJayamohan Kallickal iounmap(phba->csr_va); 6086733b39aSJayamohan Kallickal phba->csr_va = NULL; 6096733b39aSJayamohan Kallickal } 6106733b39aSJayamohan Kallickal if (phba->db_va) { 6116733b39aSJayamohan Kallickal iounmap(phba->db_va); 6126733b39aSJayamohan Kallickal phba->db_va = NULL; 6136733b39aSJayamohan Kallickal } 6146733b39aSJayamohan Kallickal if (phba->pci_va) { 6156733b39aSJayamohan Kallickal iounmap(phba->pci_va); 6166733b39aSJayamohan Kallickal phba->pci_va = NULL; 6176733b39aSJayamohan Kallickal } 6186733b39aSJayamohan Kallickal } 6196733b39aSJayamohan Kallickal 6206733b39aSJayamohan Kallickal static int beiscsi_map_pci_bars(struct beiscsi_hba *phba, 6216733b39aSJayamohan Kallickal struct pci_dev *pcidev) 6226733b39aSJayamohan Kallickal { 6236733b39aSJayamohan Kallickal u8 __iomem *addr; 624f98c96b0SJayamohan Kallickal int pcicfg_reg; 6256733b39aSJayamohan Kallickal 6266733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 2), 6276733b39aSJayamohan Kallickal pci_resource_len(pcidev, 2)); 6286733b39aSJayamohan Kallickal if (addr == NULL) 6296733b39aSJayamohan Kallickal return -ENOMEM; 6306733b39aSJayamohan Kallickal phba->ctrl.csr = addr; 6316733b39aSJayamohan Kallickal phba->csr_va = addr; 6326733b39aSJayamohan Kallickal phba->csr_pa.u.a64.address = pci_resource_start(pcidev, 2); 6336733b39aSJayamohan Kallickal 6346733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 4), 128 * 1024); 6356733b39aSJayamohan Kallickal if (addr == NULL) 6366733b39aSJayamohan Kallickal goto pci_map_err; 6376733b39aSJayamohan Kallickal phba->ctrl.db = addr; 6386733b39aSJayamohan Kallickal phba->db_va = addr; 6396733b39aSJayamohan Kallickal phba->db_pa.u.a64.address = pci_resource_start(pcidev, 4); 6406733b39aSJayamohan Kallickal 641f98c96b0SJayamohan Kallickal if (phba->generation == BE_GEN2) 642f98c96b0SJayamohan Kallickal pcicfg_reg = 1; 643f98c96b0SJayamohan Kallickal else 644f98c96b0SJayamohan Kallickal pcicfg_reg = 0; 645f98c96b0SJayamohan Kallickal 646f98c96b0SJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, pcicfg_reg), 647f98c96b0SJayamohan Kallickal pci_resource_len(pcidev, pcicfg_reg)); 648f98c96b0SJayamohan Kallickal 6496733b39aSJayamohan Kallickal if (addr == NULL) 6506733b39aSJayamohan Kallickal goto pci_map_err; 6516733b39aSJayamohan Kallickal phba->ctrl.pcicfg = addr; 6526733b39aSJayamohan Kallickal phba->pci_va = addr; 653f98c96b0SJayamohan Kallickal phba->pci_pa.u.a64.address = pci_resource_start(pcidev, pcicfg_reg); 6546733b39aSJayamohan Kallickal return 0; 6556733b39aSJayamohan Kallickal 6566733b39aSJayamohan Kallickal pci_map_err: 6576733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 6586733b39aSJayamohan Kallickal return -ENOMEM; 6596733b39aSJayamohan Kallickal } 6606733b39aSJayamohan Kallickal 6616733b39aSJayamohan Kallickal static int beiscsi_enable_pci(struct pci_dev *pcidev) 6626733b39aSJayamohan Kallickal { 6636733b39aSJayamohan Kallickal int ret; 6646733b39aSJayamohan Kallickal 6656733b39aSJayamohan Kallickal ret = pci_enable_device(pcidev); 6666733b39aSJayamohan Kallickal if (ret) { 66799bc5d55SJohn Soni Jose dev_err(&pcidev->dev, 66899bc5d55SJohn Soni Jose "beiscsi_enable_pci - enable device failed\n"); 6696733b39aSJayamohan Kallickal return ret; 6706733b39aSJayamohan Kallickal } 6716733b39aSJayamohan Kallickal 672e307f3acSJohn Soni Jose ret = pci_request_regions(pcidev, DRV_NAME); 673e307f3acSJohn Soni Jose if (ret) { 674e307f3acSJohn Soni Jose dev_err(&pcidev->dev, 675e307f3acSJohn Soni Jose "beiscsi_enable_pci - request region failed\n"); 676e307f3acSJohn Soni Jose goto pci_dev_disable; 677e307f3acSJohn Soni Jose } 678e307f3acSJohn Soni Jose 679bfead3b2SJayamohan Kallickal pci_set_master(pcidev); 6806c57625bSJayamohan Kallickal ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64)); 6816c57625bSJayamohan Kallickal if (ret) { 6826c57625bSJayamohan Kallickal ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32)); 6836c57625bSJayamohan Kallickal if (ret) { 6846c57625bSJayamohan Kallickal dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n"); 685e307f3acSJohn Soni Jose goto pci_region_release; 6866c57625bSJayamohan Kallickal } else { 6876c57625bSJayamohan Kallickal ret = pci_set_consistent_dma_mask(pcidev, 6886c57625bSJayamohan Kallickal DMA_BIT_MASK(32)); 6896c57625bSJayamohan Kallickal } 6906c57625bSJayamohan Kallickal } else { 6916c57625bSJayamohan Kallickal ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64)); 6926733b39aSJayamohan Kallickal if (ret) { 6936733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n"); 694e307f3acSJohn Soni Jose goto pci_region_release; 6956733b39aSJayamohan Kallickal } 6966733b39aSJayamohan Kallickal } 6976733b39aSJayamohan Kallickal return 0; 698e307f3acSJohn Soni Jose 699e307f3acSJohn Soni Jose pci_region_release: 700e307f3acSJohn Soni Jose pci_release_regions(pcidev); 701e307f3acSJohn Soni Jose pci_dev_disable: 702e307f3acSJohn Soni Jose pci_disable_device(pcidev); 703e307f3acSJohn Soni Jose 704e307f3acSJohn Soni Jose return ret; 7056733b39aSJayamohan Kallickal } 7066733b39aSJayamohan Kallickal 7076733b39aSJayamohan Kallickal static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev) 7086733b39aSJayamohan Kallickal { 7096733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 7106733b39aSJayamohan Kallickal struct be_dma_mem *mbox_mem_alloc = &ctrl->mbox_mem_alloced; 7116733b39aSJayamohan Kallickal struct be_dma_mem *mbox_mem_align = &ctrl->mbox_mem; 7126733b39aSJayamohan Kallickal int status = 0; 7136733b39aSJayamohan Kallickal 7146733b39aSJayamohan Kallickal ctrl->pdev = pdev; 7156733b39aSJayamohan Kallickal status = beiscsi_map_pci_bars(phba, pdev); 7166733b39aSJayamohan Kallickal if (status) 7176733b39aSJayamohan Kallickal return status; 7186733b39aSJayamohan Kallickal mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16; 7196733b39aSJayamohan Kallickal mbox_mem_alloc->va = pci_alloc_consistent(pdev, 7206733b39aSJayamohan Kallickal mbox_mem_alloc->size, 7216733b39aSJayamohan Kallickal &mbox_mem_alloc->dma); 7226733b39aSJayamohan Kallickal if (!mbox_mem_alloc->va) { 7236733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 724a49e06d5SJayamohan Kallickal return -ENOMEM; 7256733b39aSJayamohan Kallickal } 7266733b39aSJayamohan Kallickal 7276733b39aSJayamohan Kallickal mbox_mem_align->size = sizeof(struct be_mcc_mailbox); 7286733b39aSJayamohan Kallickal mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16); 7296733b39aSJayamohan Kallickal mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16); 7306733b39aSJayamohan Kallickal memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox)); 731c03a50f7SJitendra Bhivare mutex_init(&ctrl->mbox_lock); 732bfead3b2SJayamohan Kallickal spin_lock_init(&phba->ctrl.mcc_lock); 733bfead3b2SJayamohan Kallickal 7346733b39aSJayamohan Kallickal return status; 7356733b39aSJayamohan Kallickal } 7366733b39aSJayamohan Kallickal 737843ae752SJayamohan Kallickal /** 738843ae752SJayamohan Kallickal * beiscsi_get_params()- Set the config paramters 739843ae752SJayamohan Kallickal * @phba: ptr device priv structure 740843ae752SJayamohan Kallickal **/ 7416733b39aSJayamohan Kallickal static void beiscsi_get_params(struct beiscsi_hba *phba) 7426733b39aSJayamohan Kallickal { 743843ae752SJayamohan Kallickal uint32_t total_cid_count = 0; 744843ae752SJayamohan Kallickal uint32_t total_icd_count = 0; 745843ae752SJayamohan Kallickal uint8_t ulp_num = 0; 746843ae752SJayamohan Kallickal 747843ae752SJayamohan Kallickal total_cid_count = BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP0) + 748843ae752SJayamohan Kallickal BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP1); 749843ae752SJayamohan Kallickal 750cf987b79SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 751cf987b79SJayamohan Kallickal uint32_t align_mask = 0; 752cf987b79SJayamohan Kallickal uint32_t icd_post_per_page = 0; 753cf987b79SJayamohan Kallickal uint32_t icd_count_unavailable = 0; 754cf987b79SJayamohan Kallickal uint32_t icd_start = 0, icd_count = 0; 755cf987b79SJayamohan Kallickal uint32_t icd_start_align = 0, icd_count_align = 0; 756cf987b79SJayamohan Kallickal 757843ae752SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { 758cf987b79SJayamohan Kallickal icd_start = phba->fw_config.iscsi_icd_start[ulp_num]; 759cf987b79SJayamohan Kallickal icd_count = phba->fw_config.iscsi_icd_count[ulp_num]; 760cf987b79SJayamohan Kallickal 761cf987b79SJayamohan Kallickal /* Get ICD count that can be posted on each page */ 762cf987b79SJayamohan Kallickal icd_post_per_page = (PAGE_SIZE / (BE2_SGE * 763cf987b79SJayamohan Kallickal sizeof(struct iscsi_sge))); 764cf987b79SJayamohan Kallickal align_mask = (icd_post_per_page - 1); 765cf987b79SJayamohan Kallickal 766cf987b79SJayamohan Kallickal /* Check if icd_start is aligned ICD per page posting */ 767cf987b79SJayamohan Kallickal if (icd_start % icd_post_per_page) { 768cf987b79SJayamohan Kallickal icd_start_align = ((icd_start + 769cf987b79SJayamohan Kallickal icd_post_per_page) & 770cf987b79SJayamohan Kallickal ~(align_mask)); 771cf987b79SJayamohan Kallickal phba->fw_config. 772cf987b79SJayamohan Kallickal iscsi_icd_start[ulp_num] = 773cf987b79SJayamohan Kallickal icd_start_align; 774843ae752SJayamohan Kallickal } 775843ae752SJayamohan Kallickal 776cf987b79SJayamohan Kallickal icd_count_align = (icd_count & ~align_mask); 777cf987b79SJayamohan Kallickal 778cf987b79SJayamohan Kallickal /* ICD discarded in the process of alignment */ 779cf987b79SJayamohan Kallickal if (icd_start_align) 780cf987b79SJayamohan Kallickal icd_count_unavailable = ((icd_start_align - 781cf987b79SJayamohan Kallickal icd_start) + 782cf987b79SJayamohan Kallickal (icd_count - 783cf987b79SJayamohan Kallickal icd_count_align)); 784cf987b79SJayamohan Kallickal 785cf987b79SJayamohan Kallickal /* Updated ICD count available */ 786cf987b79SJayamohan Kallickal phba->fw_config.iscsi_icd_count[ulp_num] = (icd_count - 787cf987b79SJayamohan Kallickal icd_count_unavailable); 788cf987b79SJayamohan Kallickal 789cf987b79SJayamohan Kallickal beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 790cf987b79SJayamohan Kallickal "BM_%d : Aligned ICD values\n" 791cf987b79SJayamohan Kallickal "\t ICD Start : %d\n" 792cf987b79SJayamohan Kallickal "\t ICD Count : %d\n" 793cf987b79SJayamohan Kallickal "\t ICD Discarded : %d\n", 794cf987b79SJayamohan Kallickal phba->fw_config. 795cf987b79SJayamohan Kallickal iscsi_icd_start[ulp_num], 796cf987b79SJayamohan Kallickal phba->fw_config. 797cf987b79SJayamohan Kallickal iscsi_icd_count[ulp_num], 798cf987b79SJayamohan Kallickal icd_count_unavailable); 799cf987b79SJayamohan Kallickal break; 800cf987b79SJayamohan Kallickal } 801cf987b79SJayamohan Kallickal } 802cf987b79SJayamohan Kallickal 803cf987b79SJayamohan Kallickal total_icd_count = phba->fw_config.iscsi_icd_count[ulp_num]; 804843ae752SJayamohan Kallickal phba->params.ios_per_ctrl = (total_icd_count - 805843ae752SJayamohan Kallickal (total_cid_count + 806843ae752SJayamohan Kallickal BE2_TMFS + BE2_NOPOUT_REQ)); 807843ae752SJayamohan Kallickal phba->params.cxns_per_ctrl = total_cid_count; 808843ae752SJayamohan Kallickal phba->params.asyncpdus_per_ctrl = total_cid_count; 809843ae752SJayamohan Kallickal phba->params.icds_per_ctrl = total_icd_count; 8106733b39aSJayamohan Kallickal phba->params.num_sge_per_io = BE2_SGE; 8116733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz = BE2_DEFPDU_HDR_SZ; 8126733b39aSJayamohan Kallickal phba->params.defpdu_data_sz = BE2_DEFPDU_DATA_SZ; 8136733b39aSJayamohan Kallickal phba->params.eq_timer = 64; 814843ae752SJayamohan Kallickal phba->params.num_eq_entries = 1024; 815843ae752SJayamohan Kallickal phba->params.num_cq_entries = 1024; 8166733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn = 256; 8176733b39aSJayamohan Kallickal } 8186733b39aSJayamohan Kallickal 8196733b39aSJayamohan Kallickal static void hwi_ring_eq_db(struct beiscsi_hba *phba, 8206733b39aSJayamohan Kallickal unsigned int id, unsigned int clr_interrupt, 8216733b39aSJayamohan Kallickal unsigned int num_processed, 8226733b39aSJayamohan Kallickal unsigned char rearm, unsigned char event) 8236733b39aSJayamohan Kallickal { 8246733b39aSJayamohan Kallickal u32 val = 0; 825e08b3c8bSJayamohan Kallickal 8266733b39aSJayamohan Kallickal if (rearm) 8276733b39aSJayamohan Kallickal val |= 1 << DB_EQ_REARM_SHIFT; 8286733b39aSJayamohan Kallickal if (clr_interrupt) 8296733b39aSJayamohan Kallickal val |= 1 << DB_EQ_CLR_SHIFT; 8306733b39aSJayamohan Kallickal if (event) 8316733b39aSJayamohan Kallickal val |= 1 << DB_EQ_EVNT_SHIFT; 832e08b3c8bSJayamohan Kallickal 8336733b39aSJayamohan Kallickal val |= num_processed << DB_EQ_NUM_POPPED_SHIFT; 834e08b3c8bSJayamohan Kallickal /* Setting lower order EQ_ID Bits */ 835e08b3c8bSJayamohan Kallickal val |= (id & DB_EQ_RING_ID_LOW_MASK); 836e08b3c8bSJayamohan Kallickal 837e08b3c8bSJayamohan Kallickal /* Setting Higher order EQ_ID Bits */ 838e08b3c8bSJayamohan Kallickal val |= (((id >> DB_EQ_HIGH_FEILD_SHIFT) & 839e08b3c8bSJayamohan Kallickal DB_EQ_RING_ID_HIGH_MASK) 840e08b3c8bSJayamohan Kallickal << DB_EQ_HIGH_SET_SHIFT); 841e08b3c8bSJayamohan Kallickal 8426733b39aSJayamohan Kallickal iowrite32(val, phba->db_va + DB_EQ_OFFSET); 8436733b39aSJayamohan Kallickal } 8446733b39aSJayamohan Kallickal 8456733b39aSJayamohan Kallickal /** 846bfead3b2SJayamohan Kallickal * be_isr_mcc - The isr routine of the driver. 847bfead3b2SJayamohan Kallickal * @irq: Not used 848bfead3b2SJayamohan Kallickal * @dev_id: Pointer to host adapter structure 849bfead3b2SJayamohan Kallickal */ 850bfead3b2SJayamohan Kallickal static irqreturn_t be_isr_mcc(int irq, void *dev_id) 851bfead3b2SJayamohan Kallickal { 852bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 853bfead3b2SJayamohan Kallickal struct be_eq_entry *eqe = NULL; 854bfead3b2SJayamohan Kallickal struct be_queue_info *eq; 855bfead3b2SJayamohan Kallickal struct be_queue_info *mcc; 856bfead3b2SJayamohan Kallickal unsigned int num_eq_processed; 857bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 858bfead3b2SJayamohan Kallickal unsigned long flags; 859bfead3b2SJayamohan Kallickal 860bfead3b2SJayamohan Kallickal pbe_eq = dev_id; 861bfead3b2SJayamohan Kallickal eq = &pbe_eq->q; 862bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 863bfead3b2SJayamohan Kallickal mcc = &phba->ctrl.mcc_obj.cq; 864bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 865bfead3b2SJayamohan Kallickal 866bfead3b2SJayamohan Kallickal num_eq_processed = 0; 867bfead3b2SJayamohan Kallickal 868bfead3b2SJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 869bfead3b2SJayamohan Kallickal & EQE_VALID_MASK) { 870bfead3b2SJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 871bfead3b2SJayamohan Kallickal resource_id) / 32] & 872bfead3b2SJayamohan Kallickal EQE_RESID_MASK) >> 16) == mcc->id) { 873bfead3b2SJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 87472fb46a9SJohn Soni Jose pbe_eq->todo_mcc_cq = true; 875bfead3b2SJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 876bfead3b2SJayamohan Kallickal } 877bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 878bfead3b2SJayamohan Kallickal queue_tail_inc(eq); 879bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 880bfead3b2SJayamohan Kallickal num_eq_processed++; 881bfead3b2SJayamohan Kallickal } 88272fb46a9SJohn Soni Jose if (pbe_eq->todo_mcc_cq) 88372fb46a9SJohn Soni Jose queue_work(phba->wq, &pbe_eq->work_cqs); 884bfead3b2SJayamohan Kallickal if (num_eq_processed) 885bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 1, 1); 886bfead3b2SJayamohan Kallickal 887bfead3b2SJayamohan Kallickal return IRQ_HANDLED; 888bfead3b2SJayamohan Kallickal } 889bfead3b2SJayamohan Kallickal 890bfead3b2SJayamohan Kallickal /** 891bfead3b2SJayamohan Kallickal * be_isr_msix - The isr routine of the driver. 892bfead3b2SJayamohan Kallickal * @irq: Not used 893bfead3b2SJayamohan Kallickal * @dev_id: Pointer to host adapter structure 894bfead3b2SJayamohan Kallickal */ 895bfead3b2SJayamohan Kallickal static irqreturn_t be_isr_msix(int irq, void *dev_id) 896bfead3b2SJayamohan Kallickal { 897bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 898bfead3b2SJayamohan Kallickal struct be_queue_info *eq; 899bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 900bfead3b2SJayamohan Kallickal 901bfead3b2SJayamohan Kallickal pbe_eq = dev_id; 902bfead3b2SJayamohan Kallickal eq = &pbe_eq->q; 903bfead3b2SJayamohan Kallickal 904bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 9051094cf68SJitendra Bhivare 9061094cf68SJitendra Bhivare /* disable interrupt till iopoll completes */ 9071094cf68SJitendra Bhivare hwi_ring_eq_db(phba, eq->id, 1, 0, 0, 1); 908511cbce2SChristoph Hellwig irq_poll_sched(&pbe_eq->iopoll); 909bfead3b2SJayamohan Kallickal 910bfead3b2SJayamohan Kallickal return IRQ_HANDLED; 911bfead3b2SJayamohan Kallickal } 912bfead3b2SJayamohan Kallickal 913bfead3b2SJayamohan Kallickal /** 9146733b39aSJayamohan Kallickal * be_isr - The isr routine of the driver. 9156733b39aSJayamohan Kallickal * @irq: Not used 9166733b39aSJayamohan Kallickal * @dev_id: Pointer to host adapter structure 9176733b39aSJayamohan Kallickal */ 9186733b39aSJayamohan Kallickal static irqreturn_t be_isr(int irq, void *dev_id) 9196733b39aSJayamohan Kallickal { 9206733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 9216733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 9226733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 9236733b39aSJayamohan Kallickal struct be_eq_entry *eqe = NULL; 9246733b39aSJayamohan Kallickal struct be_queue_info *eq; 925bfead3b2SJayamohan Kallickal struct be_queue_info *mcc; 9266733b39aSJayamohan Kallickal unsigned long flags, index; 927bfead3b2SJayamohan Kallickal unsigned int num_mcceq_processed, num_ioeq_processed; 9286733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl; 929bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 9306733b39aSJayamohan Kallickal int isr; 9316733b39aSJayamohan Kallickal 9326733b39aSJayamohan Kallickal phba = dev_id; 9336eab04a8SJustin P. Mattock ctrl = &phba->ctrl; 9346733b39aSJayamohan Kallickal isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET + 9356733b39aSJayamohan Kallickal (PCI_FUNC(ctrl->pdev->devfn) * CEV_ISR_SIZE)); 9366733b39aSJayamohan Kallickal if (!isr) 9376733b39aSJayamohan Kallickal return IRQ_NONE; 9386733b39aSJayamohan Kallickal 9396733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 9406733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 941bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[0]; 942bfead3b2SJayamohan Kallickal 943bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[0].q; 944bfead3b2SJayamohan Kallickal mcc = &phba->ctrl.mcc_obj.cq; 9456733b39aSJayamohan Kallickal index = 0; 9466733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 9476733b39aSJayamohan Kallickal 948bfead3b2SJayamohan Kallickal num_ioeq_processed = 0; 949bfead3b2SJayamohan Kallickal num_mcceq_processed = 0; 9506733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 9516733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 952bfead3b2SJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 953bfead3b2SJayamohan Kallickal resource_id) / 32] & 954bfead3b2SJayamohan Kallickal EQE_RESID_MASK) >> 16) == mcc->id) { 955bfead3b2SJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 95672fb46a9SJohn Soni Jose pbe_eq->todo_mcc_cq = true; 957bfead3b2SJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 958bfead3b2SJayamohan Kallickal num_mcceq_processed++; 959bfead3b2SJayamohan Kallickal } else { 960511cbce2SChristoph Hellwig irq_poll_sched(&pbe_eq->iopoll); 961bfead3b2SJayamohan Kallickal num_ioeq_processed++; 962bfead3b2SJayamohan Kallickal } 9636733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 9646733b39aSJayamohan Kallickal queue_tail_inc(eq); 9656733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 9666733b39aSJayamohan Kallickal } 967bfead3b2SJayamohan Kallickal if (num_ioeq_processed || num_mcceq_processed) { 96872fb46a9SJohn Soni Jose if (pbe_eq->todo_mcc_cq) 96972fb46a9SJohn Soni Jose queue_work(phba->wq, &pbe_eq->work_cqs); 970bfead3b2SJayamohan Kallickal 971bfead3b2SJayamohan Kallickal if ((num_mcceq_processed) && (!num_ioeq_processed)) 972bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 973bfead3b2SJayamohan Kallickal (num_ioeq_processed + 974bfead3b2SJayamohan Kallickal num_mcceq_processed) , 1, 1); 975bfead3b2SJayamohan Kallickal else 976bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 977bfead3b2SJayamohan Kallickal (num_ioeq_processed + 978bfead3b2SJayamohan Kallickal num_mcceq_processed), 0, 1); 979bfead3b2SJayamohan Kallickal 9806733b39aSJayamohan Kallickal return IRQ_HANDLED; 9816733b39aSJayamohan Kallickal } else 9826733b39aSJayamohan Kallickal return IRQ_NONE; 9836733b39aSJayamohan Kallickal } 9846733b39aSJayamohan Kallickal 9851094cf68SJitendra Bhivare 9866733b39aSJayamohan Kallickal static int beiscsi_init_irqs(struct beiscsi_hba *phba) 9876733b39aSJayamohan Kallickal { 9886733b39aSJayamohan Kallickal struct pci_dev *pcidev = phba->pcidev; 989bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 990bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 9914f5af07eSJayamohan Kallickal int ret, msix_vec, i, j; 9926733b39aSJayamohan Kallickal 993bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 994bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 995bfead3b2SJayamohan Kallickal 996bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 997bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 9988fcfb210SJayamohan Kallickal phba->msi_name[i] = kzalloc(BEISCSI_MSI_NAME, 9998fcfb210SJayamohan Kallickal GFP_KERNEL); 10008fcfb210SJayamohan Kallickal if (!phba->msi_name[i]) { 10018fcfb210SJayamohan Kallickal ret = -ENOMEM; 10028fcfb210SJayamohan Kallickal goto free_msix_irqs; 10038fcfb210SJayamohan Kallickal } 10048fcfb210SJayamohan Kallickal 10058fcfb210SJayamohan Kallickal sprintf(phba->msi_name[i], "beiscsi_%02x_%02x", 10068fcfb210SJayamohan Kallickal phba->shost->host_no, i); 1007bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 10088fcfb210SJayamohan Kallickal ret = request_irq(msix_vec, be_isr_msix, 0, 10098fcfb210SJayamohan Kallickal phba->msi_name[i], 1010bfead3b2SJayamohan Kallickal &phwi_context->be_eq[i]); 10114f5af07eSJayamohan Kallickal if (ret) { 101299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 101399bc5d55SJohn Soni Jose "BM_%d : beiscsi_init_irqs-Failed to" 101499bc5d55SJohn Soni Jose "register msix for i = %d\n", 101599bc5d55SJohn Soni Jose i); 10168fcfb210SJayamohan Kallickal kfree(phba->msi_name[i]); 10174f5af07eSJayamohan Kallickal goto free_msix_irqs; 10184f5af07eSJayamohan Kallickal } 1019bfead3b2SJayamohan Kallickal } 10208fcfb210SJayamohan Kallickal phba->msi_name[i] = kzalloc(BEISCSI_MSI_NAME, GFP_KERNEL); 10218fcfb210SJayamohan Kallickal if (!phba->msi_name[i]) { 10228fcfb210SJayamohan Kallickal ret = -ENOMEM; 10238fcfb210SJayamohan Kallickal goto free_msix_irqs; 10248fcfb210SJayamohan Kallickal } 10258fcfb210SJayamohan Kallickal sprintf(phba->msi_name[i], "beiscsi_mcc_%02x", 10268fcfb210SJayamohan Kallickal phba->shost->host_no); 1027bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 10288fcfb210SJayamohan Kallickal ret = request_irq(msix_vec, be_isr_mcc, 0, phba->msi_name[i], 1029bfead3b2SJayamohan Kallickal &phwi_context->be_eq[i]); 10304f5af07eSJayamohan Kallickal if (ret) { 103199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT , 103299bc5d55SJohn Soni Jose "BM_%d : beiscsi_init_irqs-" 10334f5af07eSJayamohan Kallickal "Failed to register beiscsi_msix_mcc\n"); 10348fcfb210SJayamohan Kallickal kfree(phba->msi_name[i]); 10354f5af07eSJayamohan Kallickal goto free_msix_irqs; 10364f5af07eSJayamohan Kallickal } 10374f5af07eSJayamohan Kallickal 1038bfead3b2SJayamohan Kallickal } else { 1039bfead3b2SJayamohan Kallickal ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED, 1040bfead3b2SJayamohan Kallickal "beiscsi", phba); 10416733b39aSJayamohan Kallickal if (ret) { 104299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 104399bc5d55SJohn Soni Jose "BM_%d : beiscsi_init_irqs-" 10446733b39aSJayamohan Kallickal "Failed to register irq\\n"); 10456733b39aSJayamohan Kallickal return ret; 10466733b39aSJayamohan Kallickal } 1047bfead3b2SJayamohan Kallickal } 10486733b39aSJayamohan Kallickal return 0; 10494f5af07eSJayamohan Kallickal free_msix_irqs: 10508fcfb210SJayamohan Kallickal for (j = i - 1; j >= 0; j--) { 10518fcfb210SJayamohan Kallickal kfree(phba->msi_name[j]); 10528fcfb210SJayamohan Kallickal msix_vec = phba->msix_entries[j].vector; 10534f5af07eSJayamohan Kallickal free_irq(msix_vec, &phwi_context->be_eq[j]); 10548fcfb210SJayamohan Kallickal } 10554f5af07eSJayamohan Kallickal return ret; 10566733b39aSJayamohan Kallickal } 10576733b39aSJayamohan Kallickal 1058e08b3c8bSJayamohan Kallickal void hwi_ring_cq_db(struct beiscsi_hba *phba, 10596733b39aSJayamohan Kallickal unsigned int id, unsigned int num_processed, 10601094cf68SJitendra Bhivare unsigned char rearm) 10616733b39aSJayamohan Kallickal { 10626733b39aSJayamohan Kallickal u32 val = 0; 1063e08b3c8bSJayamohan Kallickal 10646733b39aSJayamohan Kallickal if (rearm) 10656733b39aSJayamohan Kallickal val |= 1 << DB_CQ_REARM_SHIFT; 1066e08b3c8bSJayamohan Kallickal 10676733b39aSJayamohan Kallickal val |= num_processed << DB_CQ_NUM_POPPED_SHIFT; 1068e08b3c8bSJayamohan Kallickal 1069e08b3c8bSJayamohan Kallickal /* Setting lower order CQ_ID Bits */ 1070e08b3c8bSJayamohan Kallickal val |= (id & DB_CQ_RING_ID_LOW_MASK); 1071e08b3c8bSJayamohan Kallickal 1072e08b3c8bSJayamohan Kallickal /* Setting Higher order CQ_ID Bits */ 1073e08b3c8bSJayamohan Kallickal val |= (((id >> DB_CQ_HIGH_FEILD_SHIFT) & 1074e08b3c8bSJayamohan Kallickal DB_CQ_RING_ID_HIGH_MASK) 1075e08b3c8bSJayamohan Kallickal << DB_CQ_HIGH_SET_SHIFT); 1076e08b3c8bSJayamohan Kallickal 10776733b39aSJayamohan Kallickal iowrite32(val, phba->db_va + DB_CQ_OFFSET); 10786733b39aSJayamohan Kallickal } 10796733b39aSJayamohan Kallickal 10806733b39aSJayamohan Kallickal static unsigned int 10816733b39aSJayamohan Kallickal beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn, 10826733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 10836733b39aSJayamohan Kallickal struct pdu_base *ppdu, 10846733b39aSJayamohan Kallickal unsigned long pdu_len, 10856733b39aSJayamohan Kallickal void *pbuffer, unsigned long buf_len) 10866733b39aSJayamohan Kallickal { 10876733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 10886733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 1089bfead3b2SJayamohan Kallickal struct iscsi_task *task; 1090bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task; 1091bfead3b2SJayamohan Kallickal struct iscsi_hdr *login_hdr; 10926733b39aSJayamohan Kallickal 10936733b39aSJayamohan Kallickal switch (ppdu->dw[offsetof(struct amap_pdu_base, opcode) / 32] & 10946733b39aSJayamohan Kallickal PDUBASE_OPCODE_MASK) { 10956733b39aSJayamohan Kallickal case ISCSI_OP_NOOP_IN: 10966733b39aSJayamohan Kallickal pbuffer = NULL; 10976733b39aSJayamohan Kallickal buf_len = 0; 10986733b39aSJayamohan Kallickal break; 10996733b39aSJayamohan Kallickal case ISCSI_OP_ASYNC_EVENT: 11006733b39aSJayamohan Kallickal break; 11016733b39aSJayamohan Kallickal case ISCSI_OP_REJECT: 11026733b39aSJayamohan Kallickal WARN_ON(!pbuffer); 11036733b39aSJayamohan Kallickal WARN_ON(!(buf_len == 48)); 110499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 110599bc5d55SJohn Soni Jose BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, 110699bc5d55SJohn Soni Jose "BM_%d : In ISCSI_OP_REJECT\n"); 11076733b39aSJayamohan Kallickal break; 11086733b39aSJayamohan Kallickal case ISCSI_OP_LOGIN_RSP: 11097bd6e25cSJayamohan Kallickal case ISCSI_OP_TEXT_RSP: 1110bfead3b2SJayamohan Kallickal task = conn->login_task; 1111bfead3b2SJayamohan Kallickal io_task = task->dd_data; 1112bfead3b2SJayamohan Kallickal login_hdr = (struct iscsi_hdr *)ppdu; 1113bfead3b2SJayamohan Kallickal login_hdr->itt = io_task->libiscsi_itt; 11146733b39aSJayamohan Kallickal break; 11156733b39aSJayamohan Kallickal default: 111699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_WARNING, 111799bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 111899bc5d55SJohn Soni Jose "BM_%d : Unrecognized opcode 0x%x in async msg\n", 11196733b39aSJayamohan Kallickal (ppdu-> 11206733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_base, opcode) / 32] 11216733b39aSJayamohan Kallickal & PDUBASE_OPCODE_MASK)); 11226733b39aSJayamohan Kallickal return 1; 11236733b39aSJayamohan Kallickal } 11246733b39aSJayamohan Kallickal 1125659743b0SShlomo Pongratz spin_lock_bh(&session->back_lock); 11266733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)ppdu, pbuffer, buf_len); 1127659743b0SShlomo Pongratz spin_unlock_bh(&session->back_lock); 11286733b39aSJayamohan Kallickal return 0; 11296733b39aSJayamohan Kallickal } 11306733b39aSJayamohan Kallickal 11316733b39aSJayamohan Kallickal static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba) 11326733b39aSJayamohan Kallickal { 11336733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 11346733b39aSJayamohan Kallickal 113510139fe0SJitendra Bhivare spin_lock_bh(&phba->io_sgl_lock); 11366733b39aSJayamohan Kallickal if (phba->io_sgl_hndl_avbl) { 113799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO, 113899bc5d55SJohn Soni Jose "BM_%d : In alloc_io_sgl_handle," 113999bc5d55SJohn Soni Jose " io_sgl_alloc_index=%d\n", 11406733b39aSJayamohan Kallickal phba->io_sgl_alloc_index); 114199bc5d55SJohn Soni Jose 11426733b39aSJayamohan Kallickal psgl_handle = phba->io_sgl_hndl_base[phba-> 11436733b39aSJayamohan Kallickal io_sgl_alloc_index]; 11446733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_alloc_index] = NULL; 11456733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl--; 1146bfead3b2SJayamohan Kallickal if (phba->io_sgl_alloc_index == (phba->params. 1147bfead3b2SJayamohan Kallickal ios_per_ctrl - 1)) 11486733b39aSJayamohan Kallickal phba->io_sgl_alloc_index = 0; 11496733b39aSJayamohan Kallickal else 11506733b39aSJayamohan Kallickal phba->io_sgl_alloc_index++; 11516733b39aSJayamohan Kallickal } else 11526733b39aSJayamohan Kallickal psgl_handle = NULL; 115310139fe0SJitendra Bhivare spin_unlock_bh(&phba->io_sgl_lock); 11546733b39aSJayamohan Kallickal return psgl_handle; 11556733b39aSJayamohan Kallickal } 11566733b39aSJayamohan Kallickal 11576733b39aSJayamohan Kallickal static void 11586733b39aSJayamohan Kallickal free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) 11596733b39aSJayamohan Kallickal { 116010139fe0SJitendra Bhivare spin_lock_bh(&phba->io_sgl_lock); 116199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO, 116299bc5d55SJohn Soni Jose "BM_%d : In free_,io_sgl_free_index=%d\n", 11636733b39aSJayamohan Kallickal phba->io_sgl_free_index); 116499bc5d55SJohn Soni Jose 11656733b39aSJayamohan Kallickal if (phba->io_sgl_hndl_base[phba->io_sgl_free_index]) { 11666733b39aSJayamohan Kallickal /* 11676733b39aSJayamohan Kallickal * this can happen if clean_task is called on a task that 11686733b39aSJayamohan Kallickal * failed in xmit_task or alloc_pdu. 11696733b39aSJayamohan Kallickal */ 117099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO, 117199bc5d55SJohn Soni Jose "BM_%d : Double Free in IO SGL io_sgl_free_index=%d," 11726733b39aSJayamohan Kallickal "value there=%p\n", phba->io_sgl_free_index, 117399bc5d55SJohn Soni Jose phba->io_sgl_hndl_base 117499bc5d55SJohn Soni Jose [phba->io_sgl_free_index]); 117510139fe0SJitendra Bhivare spin_unlock_bh(&phba->io_sgl_lock); 11766733b39aSJayamohan Kallickal return; 11776733b39aSJayamohan Kallickal } 11786733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle; 11796733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl++; 11806733b39aSJayamohan Kallickal if (phba->io_sgl_free_index == (phba->params.ios_per_ctrl - 1)) 11816733b39aSJayamohan Kallickal phba->io_sgl_free_index = 0; 11826733b39aSJayamohan Kallickal else 11836733b39aSJayamohan Kallickal phba->io_sgl_free_index++; 118410139fe0SJitendra Bhivare spin_unlock_bh(&phba->io_sgl_lock); 11856733b39aSJayamohan Kallickal } 11866733b39aSJayamohan Kallickal 1187cb564c6bSJitendra Bhivare static inline struct wrb_handle * 1188cb564c6bSJitendra Bhivare beiscsi_get_wrb_handle(struct hwi_wrb_context *pwrb_context, 1189cb564c6bSJitendra Bhivare unsigned int wrbs_per_cxn) 1190cb564c6bSJitendra Bhivare { 1191cb564c6bSJitendra Bhivare struct wrb_handle *pwrb_handle; 1192cb564c6bSJitendra Bhivare 1193f64d92e6SJitendra Bhivare spin_lock_bh(&pwrb_context->wrb_lock); 1194cb564c6bSJitendra Bhivare pwrb_handle = pwrb_context->pwrb_handle_base[pwrb_context->alloc_index]; 1195cb564c6bSJitendra Bhivare pwrb_context->wrb_handles_available--; 1196cb564c6bSJitendra Bhivare if (pwrb_context->alloc_index == (wrbs_per_cxn - 1)) 1197cb564c6bSJitendra Bhivare pwrb_context->alloc_index = 0; 1198cb564c6bSJitendra Bhivare else 1199cb564c6bSJitendra Bhivare pwrb_context->alloc_index++; 1200f64d92e6SJitendra Bhivare spin_unlock_bh(&pwrb_context->wrb_lock); 1201cb564c6bSJitendra Bhivare 1202cb564c6bSJitendra Bhivare return pwrb_handle; 1203cb564c6bSJitendra Bhivare } 1204cb564c6bSJitendra Bhivare 12056733b39aSJayamohan Kallickal /** 12066733b39aSJayamohan Kallickal * alloc_wrb_handle - To allocate a wrb handle 12076733b39aSJayamohan Kallickal * @phba: The hba pointer 12086733b39aSJayamohan Kallickal * @cid: The cid to use for allocation 1209340c99e9SJohn Soni Jose * @pwrb_context: ptr to ptr to wrb context 12106733b39aSJayamohan Kallickal * 12116733b39aSJayamohan Kallickal * This happens under session_lock until submission to chip 12126733b39aSJayamohan Kallickal */ 1213340c99e9SJohn Soni Jose struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid, 1214340c99e9SJohn Soni Jose struct hwi_wrb_context **pcontext) 12156733b39aSJayamohan Kallickal { 12166733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 12176733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 1218a7909b39SJayamohan Kallickal uint16_t cri_index = BE_GET_CRI_FROM_CID(cid); 12196733b39aSJayamohan Kallickal 12206733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 1221a7909b39SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cri_index]; 1222cb564c6bSJitendra Bhivare /* return the context address */ 1223340c99e9SJohn Soni Jose *pcontext = pwrb_context; 1224cb564c6bSJitendra Bhivare return beiscsi_get_wrb_handle(pwrb_context, phba->params.wrbs_per_cxn); 1225cb564c6bSJitendra Bhivare } 1226cb564c6bSJitendra Bhivare 1227cb564c6bSJitendra Bhivare static inline void 1228cb564c6bSJitendra Bhivare beiscsi_put_wrb_handle(struct hwi_wrb_context *pwrb_context, 1229cb564c6bSJitendra Bhivare struct wrb_handle *pwrb_handle, 1230cb564c6bSJitendra Bhivare unsigned int wrbs_per_cxn) 1231cb564c6bSJitendra Bhivare { 1232f64d92e6SJitendra Bhivare spin_lock_bh(&pwrb_context->wrb_lock); 1233cb564c6bSJitendra Bhivare pwrb_context->pwrb_handle_base[pwrb_context->free_index] = pwrb_handle; 1234cb564c6bSJitendra Bhivare pwrb_context->wrb_handles_available++; 1235cb564c6bSJitendra Bhivare if (pwrb_context->free_index == (wrbs_per_cxn - 1)) 1236cb564c6bSJitendra Bhivare pwrb_context->free_index = 0; 1237cb564c6bSJitendra Bhivare else 1238cb564c6bSJitendra Bhivare pwrb_context->free_index++; 1239f64d92e6SJitendra Bhivare spin_unlock_bh(&pwrb_context->wrb_lock); 12406733b39aSJayamohan Kallickal } 12416733b39aSJayamohan Kallickal 12426733b39aSJayamohan Kallickal /** 12436733b39aSJayamohan Kallickal * free_wrb_handle - To free the wrb handle back to pool 12446733b39aSJayamohan Kallickal * @phba: The hba pointer 12456733b39aSJayamohan Kallickal * @pwrb_context: The context to free from 12466733b39aSJayamohan Kallickal * @pwrb_handle: The wrb_handle to free 12476733b39aSJayamohan Kallickal * 12486733b39aSJayamohan Kallickal * This happens under session_lock until submission to chip 12496733b39aSJayamohan Kallickal */ 12506733b39aSJayamohan Kallickal static void 12516733b39aSJayamohan Kallickal free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context, 12526733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle) 12536733b39aSJayamohan Kallickal { 1254cb564c6bSJitendra Bhivare beiscsi_put_wrb_handle(pwrb_context, 1255cb564c6bSJitendra Bhivare pwrb_handle, 1256cb564c6bSJitendra Bhivare phba->params.wrbs_per_cxn); 125799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, 125899bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 125999bc5d55SJohn Soni Jose "BM_%d : FREE WRB: pwrb_handle=%p free_index=0x%x" 12606733b39aSJayamohan Kallickal "wrb_handles_available=%d\n", 12616733b39aSJayamohan Kallickal pwrb_handle, pwrb_context->free_index, 1262bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available); 12636733b39aSJayamohan Kallickal } 12646733b39aSJayamohan Kallickal 12656733b39aSJayamohan Kallickal static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba) 12666733b39aSJayamohan Kallickal { 12676733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 12686733b39aSJayamohan Kallickal 126910139fe0SJitendra Bhivare spin_lock_bh(&phba->mgmt_sgl_lock); 12706733b39aSJayamohan Kallickal if (phba->eh_sgl_hndl_avbl) { 12716733b39aSJayamohan Kallickal psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index]; 12726733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL; 127399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG, 127499bc5d55SJohn Soni Jose "BM_%d : mgmt_sgl_alloc_index=%d=0x%x\n", 127599bc5d55SJohn Soni Jose phba->eh_sgl_alloc_index, 127699bc5d55SJohn Soni Jose phba->eh_sgl_alloc_index); 127799bc5d55SJohn Soni Jose 12786733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl--; 12796733b39aSJayamohan Kallickal if (phba->eh_sgl_alloc_index == 12806733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 12816733b39aSJayamohan Kallickal 1)) 12826733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index = 0; 12836733b39aSJayamohan Kallickal else 12846733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index++; 12856733b39aSJayamohan Kallickal } else 12866733b39aSJayamohan Kallickal psgl_handle = NULL; 128710139fe0SJitendra Bhivare spin_unlock_bh(&phba->mgmt_sgl_lock); 12886733b39aSJayamohan Kallickal return psgl_handle; 12896733b39aSJayamohan Kallickal } 12906733b39aSJayamohan Kallickal 12916733b39aSJayamohan Kallickal void 12926733b39aSJayamohan Kallickal free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) 12936733b39aSJayamohan Kallickal { 129410139fe0SJitendra Bhivare spin_lock_bh(&phba->mgmt_sgl_lock); 129599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG, 129699bc5d55SJohn Soni Jose "BM_%d : In free_mgmt_sgl_handle," 129799bc5d55SJohn Soni Jose "eh_sgl_free_index=%d\n", 1298bfead3b2SJayamohan Kallickal phba->eh_sgl_free_index); 129999bc5d55SJohn Soni Jose 13006733b39aSJayamohan Kallickal if (phba->eh_sgl_hndl_base[phba->eh_sgl_free_index]) { 13016733b39aSJayamohan Kallickal /* 13026733b39aSJayamohan Kallickal * this can happen if clean_task is called on a task that 13036733b39aSJayamohan Kallickal * failed in xmit_task or alloc_pdu. 13046733b39aSJayamohan Kallickal */ 130599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG, 130699bc5d55SJohn Soni Jose "BM_%d : Double Free in eh SGL ," 130799bc5d55SJohn Soni Jose "eh_sgl_free_index=%d\n", 13086733b39aSJayamohan Kallickal phba->eh_sgl_free_index); 130910139fe0SJitendra Bhivare spin_unlock_bh(&phba->mgmt_sgl_lock); 13106733b39aSJayamohan Kallickal return; 13116733b39aSJayamohan Kallickal } 13126733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle; 13136733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl++; 13146733b39aSJayamohan Kallickal if (phba->eh_sgl_free_index == 13156733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 1)) 13166733b39aSJayamohan Kallickal phba->eh_sgl_free_index = 0; 13176733b39aSJayamohan Kallickal else 13186733b39aSJayamohan Kallickal phba->eh_sgl_free_index++; 131910139fe0SJitendra Bhivare spin_unlock_bh(&phba->mgmt_sgl_lock); 13206733b39aSJayamohan Kallickal } 13216733b39aSJayamohan Kallickal 13226733b39aSJayamohan Kallickal static void 13236733b39aSJayamohan Kallickal be_complete_io(struct beiscsi_conn *beiscsi_conn, 132473133261SJohn Soni Jose struct iscsi_task *task, 132573133261SJohn Soni Jose struct common_sol_cqe *csol_cqe) 13266733b39aSJayamohan Kallickal { 13276733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 13286733b39aSJayamohan Kallickal struct be_status_bhs *sts_bhs = 13296733b39aSJayamohan Kallickal (struct be_status_bhs *)io_task->cmd_bhs; 13306733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 13316733b39aSJayamohan Kallickal unsigned char *sense; 13326733b39aSJayamohan Kallickal u32 resid = 0, exp_cmdsn, max_cmdsn; 13336733b39aSJayamohan Kallickal u8 rsp, status, flags; 13346733b39aSJayamohan Kallickal 133573133261SJohn Soni Jose exp_cmdsn = csol_cqe->exp_cmdsn; 133673133261SJohn Soni Jose max_cmdsn = (csol_cqe->exp_cmdsn + 133773133261SJohn Soni Jose csol_cqe->cmd_wnd - 1); 133873133261SJohn Soni Jose rsp = csol_cqe->i_resp; 133973133261SJohn Soni Jose status = csol_cqe->i_sts; 134073133261SJohn Soni Jose flags = csol_cqe->i_flags; 134173133261SJohn Soni Jose resid = csol_cqe->res_cnt; 134273133261SJohn Soni Jose 1343bd535451SJayamohan Kallickal if (!task->sc) { 1344da334977SJayamohan Kallickal if (io_task->scsi_cmnd) { 1345bd535451SJayamohan Kallickal scsi_dma_unmap(io_task->scsi_cmnd); 1346da334977SJayamohan Kallickal io_task->scsi_cmnd = NULL; 1347da334977SJayamohan Kallickal } 13486733b39aSJayamohan Kallickal 1349bd535451SJayamohan Kallickal return; 1350bd535451SJayamohan Kallickal } 13516733b39aSJayamohan Kallickal task->sc->result = (DID_OK << 16) | status; 13526733b39aSJayamohan Kallickal if (rsp != ISCSI_STATUS_CMD_COMPLETED) { 13536733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 13546733b39aSJayamohan Kallickal goto unmap; 13556733b39aSJayamohan Kallickal } 13566733b39aSJayamohan Kallickal 13576733b39aSJayamohan Kallickal /* bidi not initially supported */ 13586733b39aSJayamohan Kallickal if (flags & (ISCSI_FLAG_CMD_UNDERFLOW | ISCSI_FLAG_CMD_OVERFLOW)) { 13596733b39aSJayamohan Kallickal if (!status && (flags & ISCSI_FLAG_CMD_OVERFLOW)) 13606733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 13616733b39aSJayamohan Kallickal 13626733b39aSJayamohan Kallickal if (flags & ISCSI_FLAG_CMD_UNDERFLOW) { 13636733b39aSJayamohan Kallickal scsi_set_resid(task->sc, resid); 13646733b39aSJayamohan Kallickal if (!status && (scsi_bufflen(task->sc) - resid < 13656733b39aSJayamohan Kallickal task->sc->underflow)) 13666733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 13676733b39aSJayamohan Kallickal } 13686733b39aSJayamohan Kallickal } 13696733b39aSJayamohan Kallickal 13706733b39aSJayamohan Kallickal if (status == SAM_STAT_CHECK_CONDITION) { 13714053a4beSDan Carpenter u16 sense_len; 1372bfead3b2SJayamohan Kallickal unsigned short *slen = (unsigned short *)sts_bhs->sense_info; 13734053a4beSDan Carpenter 13746733b39aSJayamohan Kallickal sense = sts_bhs->sense_info + sizeof(unsigned short); 13754053a4beSDan Carpenter sense_len = be16_to_cpu(*slen); 13766733b39aSJayamohan Kallickal memcpy(task->sc->sense_buffer, sense, 13776733b39aSJayamohan Kallickal min_t(u16, sense_len, SCSI_SENSE_BUFFERSIZE)); 13786733b39aSJayamohan Kallickal } 1379756d29c8SJayamohan Kallickal 138073133261SJohn Soni Jose if (io_task->cmd_bhs->iscsi_hdr.flags & ISCSI_FLAG_CMD_READ) 138173133261SJohn Soni Jose conn->rxdata_octets += resid; 13826733b39aSJayamohan Kallickal unmap: 1383eb1c4692SJohn Soni Jose if (io_task->scsi_cmnd) { 13846733b39aSJayamohan Kallickal scsi_dma_unmap(io_task->scsi_cmnd); 1385da334977SJayamohan Kallickal io_task->scsi_cmnd = NULL; 1386eb1c4692SJohn Soni Jose } 13876733b39aSJayamohan Kallickal iscsi_complete_scsi_task(task, exp_cmdsn, max_cmdsn); 13886733b39aSJayamohan Kallickal } 13896733b39aSJayamohan Kallickal 13906733b39aSJayamohan Kallickal static void 13916733b39aSJayamohan Kallickal be_complete_logout(struct beiscsi_conn *beiscsi_conn, 139273133261SJohn Soni Jose struct iscsi_task *task, 139373133261SJohn Soni Jose struct common_sol_cqe *csol_cqe) 13946733b39aSJayamohan Kallickal { 13956733b39aSJayamohan Kallickal struct iscsi_logout_rsp *hdr; 1396bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 13976733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 13986733b39aSJayamohan Kallickal 13996733b39aSJayamohan Kallickal hdr = (struct iscsi_logout_rsp *)task->hdr; 14007bd6e25cSJayamohan Kallickal hdr->opcode = ISCSI_OP_LOGOUT_RSP; 14016733b39aSJayamohan Kallickal hdr->t2wait = 5; 14026733b39aSJayamohan Kallickal hdr->t2retain = 0; 140373133261SJohn Soni Jose hdr->flags = csol_cqe->i_flags; 140473133261SJohn Soni Jose hdr->response = csol_cqe->i_resp; 1405702dc5e8SJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn); 1406702dc5e8SJayamohan Kallickal hdr->max_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn + 1407702dc5e8SJayamohan Kallickal csol_cqe->cmd_wnd - 1); 140873133261SJohn Soni Jose 14097bd6e25cSJayamohan Kallickal hdr->dlength[0] = 0; 14107bd6e25cSJayamohan Kallickal hdr->dlength[1] = 0; 14117bd6e25cSJayamohan Kallickal hdr->dlength[2] = 0; 14126733b39aSJayamohan Kallickal hdr->hlength = 0; 1413bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 14146733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 14156733b39aSJayamohan Kallickal } 14166733b39aSJayamohan Kallickal 14176733b39aSJayamohan Kallickal static void 14186733b39aSJayamohan Kallickal be_complete_tmf(struct beiscsi_conn *beiscsi_conn, 141973133261SJohn Soni Jose struct iscsi_task *task, 142073133261SJohn Soni Jose struct common_sol_cqe *csol_cqe) 14216733b39aSJayamohan Kallickal { 14226733b39aSJayamohan Kallickal struct iscsi_tm_rsp *hdr; 14236733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 1424bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 14256733b39aSJayamohan Kallickal 14266733b39aSJayamohan Kallickal hdr = (struct iscsi_tm_rsp *)task->hdr; 14277bd6e25cSJayamohan Kallickal hdr->opcode = ISCSI_OP_SCSI_TMFUNC_RSP; 142873133261SJohn Soni Jose hdr->flags = csol_cqe->i_flags; 142973133261SJohn Soni Jose hdr->response = csol_cqe->i_resp; 1430702dc5e8SJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn); 1431702dc5e8SJayamohan Kallickal hdr->max_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn + 143273133261SJohn Soni Jose csol_cqe->cmd_wnd - 1); 143373133261SJohn Soni Jose 1434bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 14356733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 14366733b39aSJayamohan Kallickal } 14376733b39aSJayamohan Kallickal 14386733b39aSJayamohan Kallickal static void 14396733b39aSJayamohan Kallickal hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn, 14406733b39aSJayamohan Kallickal struct beiscsi_hba *phba, struct sol_cqe *psol) 14416733b39aSJayamohan Kallickal { 14426733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 1443bfead3b2SJayamohan Kallickal struct wrb_handle *pwrb_handle = NULL; 14446733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 1445bfead3b2SJayamohan Kallickal struct iscsi_task *task; 1446bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task; 1447a7909b39SJayamohan Kallickal uint16_t wrb_index, cid, cri_index; 14486733b39aSJayamohan Kallickal 14496733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 14502c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) { 145173133261SJohn Soni Jose wrb_index = AMAP_GET_BITS(struct amap_it_dmsg_cqe, 145273133261SJohn Soni Jose wrb_idx, psol); 145373133261SJohn Soni Jose cid = AMAP_GET_BITS(struct amap_it_dmsg_cqe, 145473133261SJohn Soni Jose cid, psol); 14552c9dfd36SJayamohan Kallickal } else { 14562c9dfd36SJayamohan Kallickal wrb_index = AMAP_GET_BITS(struct amap_it_dmsg_cqe_v2, 14572c9dfd36SJayamohan Kallickal wrb_idx, psol); 14582c9dfd36SJayamohan Kallickal cid = AMAP_GET_BITS(struct amap_it_dmsg_cqe_v2, 14592c9dfd36SJayamohan Kallickal cid, psol); 146073133261SJohn Soni Jose } 146173133261SJohn Soni Jose 1462a7909b39SJayamohan Kallickal cri_index = BE_GET_CRI_FROM_CID(cid); 1463a7909b39SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cri_index]; 146473133261SJohn Soni Jose pwrb_handle = pwrb_context->pwrb_handle_basestd[wrb_index]; 1465bfead3b2SJayamohan Kallickal task = pwrb_handle->pio_handle; 146635e66019SJayamohan Kallickal 1467bfead3b2SJayamohan Kallickal io_task = task->dd_data; 14684a4a11b9SJayamohan Kallickal memset(io_task->pwrb_handle->pwrb, 0, sizeof(struct iscsi_wrb)); 14694a4a11b9SJayamohan Kallickal iscsi_put_task(task); 14706733b39aSJayamohan Kallickal } 14716733b39aSJayamohan Kallickal 14726733b39aSJayamohan Kallickal static void 14736733b39aSJayamohan Kallickal be_complete_nopin_resp(struct beiscsi_conn *beiscsi_conn, 147473133261SJohn Soni Jose struct iscsi_task *task, 147573133261SJohn Soni Jose struct common_sol_cqe *csol_cqe) 14766733b39aSJayamohan Kallickal { 14776733b39aSJayamohan Kallickal struct iscsi_nopin *hdr; 14786733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 1479bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 14806733b39aSJayamohan Kallickal 14816733b39aSJayamohan Kallickal hdr = (struct iscsi_nopin *)task->hdr; 148273133261SJohn Soni Jose hdr->flags = csol_cqe->i_flags; 148373133261SJohn Soni Jose hdr->exp_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn); 1484702dc5e8SJayamohan Kallickal hdr->max_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn + 148573133261SJohn Soni Jose csol_cqe->cmd_wnd - 1); 148673133261SJohn Soni Jose 14876733b39aSJayamohan Kallickal hdr->opcode = ISCSI_OP_NOOP_IN; 1488bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 14896733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 14906733b39aSJayamohan Kallickal } 14916733b39aSJayamohan Kallickal 149273133261SJohn Soni Jose static void adapter_get_sol_cqe(struct beiscsi_hba *phba, 149373133261SJohn Soni Jose struct sol_cqe *psol, 149473133261SJohn Soni Jose struct common_sol_cqe *csol_cqe) 149573133261SJohn Soni Jose { 14962c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) { 14972c9dfd36SJayamohan Kallickal csol_cqe->exp_cmdsn = AMAP_GET_BITS(struct amap_sol_cqe, 14982c9dfd36SJayamohan Kallickal i_exp_cmd_sn, psol); 14992c9dfd36SJayamohan Kallickal csol_cqe->res_cnt = AMAP_GET_BITS(struct amap_sol_cqe, 15002c9dfd36SJayamohan Kallickal i_res_cnt, psol); 15012c9dfd36SJayamohan Kallickal csol_cqe->cmd_wnd = AMAP_GET_BITS(struct amap_sol_cqe, 15022c9dfd36SJayamohan Kallickal i_cmd_wnd, psol); 15032c9dfd36SJayamohan Kallickal csol_cqe->wrb_index = AMAP_GET_BITS(struct amap_sol_cqe, 15042c9dfd36SJayamohan Kallickal wrb_index, psol); 15052c9dfd36SJayamohan Kallickal csol_cqe->cid = AMAP_GET_BITS(struct amap_sol_cqe, 15062c9dfd36SJayamohan Kallickal cid, psol); 15072c9dfd36SJayamohan Kallickal csol_cqe->hw_sts = AMAP_GET_BITS(struct amap_sol_cqe, 15082c9dfd36SJayamohan Kallickal hw_sts, psol); 15092c9dfd36SJayamohan Kallickal csol_cqe->i_resp = AMAP_GET_BITS(struct amap_sol_cqe, 15102c9dfd36SJayamohan Kallickal i_resp, psol); 15112c9dfd36SJayamohan Kallickal csol_cqe->i_sts = AMAP_GET_BITS(struct amap_sol_cqe, 15122c9dfd36SJayamohan Kallickal i_sts, psol); 15132c9dfd36SJayamohan Kallickal csol_cqe->i_flags = AMAP_GET_BITS(struct amap_sol_cqe, 15142c9dfd36SJayamohan Kallickal i_flags, psol); 15152c9dfd36SJayamohan Kallickal } else { 151673133261SJohn Soni Jose csol_cqe->exp_cmdsn = AMAP_GET_BITS(struct amap_sol_cqe_v2, 151773133261SJohn Soni Jose i_exp_cmd_sn, psol); 151873133261SJohn Soni Jose csol_cqe->res_cnt = AMAP_GET_BITS(struct amap_sol_cqe_v2, 151973133261SJohn Soni Jose i_res_cnt, psol); 152073133261SJohn Soni Jose csol_cqe->wrb_index = AMAP_GET_BITS(struct amap_sol_cqe_v2, 152173133261SJohn Soni Jose wrb_index, psol); 152273133261SJohn Soni Jose csol_cqe->cid = AMAP_GET_BITS(struct amap_sol_cqe_v2, 152373133261SJohn Soni Jose cid, psol); 152473133261SJohn Soni Jose csol_cqe->hw_sts = AMAP_GET_BITS(struct amap_sol_cqe_v2, 152573133261SJohn Soni Jose hw_sts, psol); 1526702dc5e8SJayamohan Kallickal csol_cqe->cmd_wnd = AMAP_GET_BITS(struct amap_sol_cqe_v2, 152773133261SJohn Soni Jose i_cmd_wnd, psol); 152873133261SJohn Soni Jose if (AMAP_GET_BITS(struct amap_sol_cqe_v2, 152973133261SJohn Soni Jose cmd_cmpl, psol)) 153073133261SJohn Soni Jose csol_cqe->i_sts = AMAP_GET_BITS(struct amap_sol_cqe_v2, 153173133261SJohn Soni Jose i_sts, psol); 153273133261SJohn Soni Jose else 153373133261SJohn Soni Jose csol_cqe->i_resp = AMAP_GET_BITS(struct amap_sol_cqe_v2, 153473133261SJohn Soni Jose i_sts, psol); 153573133261SJohn Soni Jose if (AMAP_GET_BITS(struct amap_sol_cqe_v2, 153673133261SJohn Soni Jose u, psol)) 153773133261SJohn Soni Jose csol_cqe->i_flags = ISCSI_FLAG_CMD_UNDERFLOW; 153873133261SJohn Soni Jose 153973133261SJohn Soni Jose if (AMAP_GET_BITS(struct amap_sol_cqe_v2, 154073133261SJohn Soni Jose o, psol)) 154173133261SJohn Soni Jose csol_cqe->i_flags |= ISCSI_FLAG_CMD_OVERFLOW; 154273133261SJohn Soni Jose } 154373133261SJohn Soni Jose } 154473133261SJohn Soni Jose 154573133261SJohn Soni Jose 15466733b39aSJayamohan Kallickal static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn, 15476733b39aSJayamohan Kallickal struct beiscsi_hba *phba, struct sol_cqe *psol) 15486733b39aSJayamohan Kallickal { 15496733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 15506733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 15516733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 15526733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 15536733b39aSJayamohan Kallickal struct iscsi_task *task; 1554bfead3b2SJayamohan Kallickal unsigned int type; 15556733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 15566733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 155773133261SJohn Soni Jose struct common_sol_cqe csol_cqe = {0}; 1558a7909b39SJayamohan Kallickal uint16_t cri_index = 0; 15596733b39aSJayamohan Kallickal 15606733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 156173133261SJohn Soni Jose 156273133261SJohn Soni Jose /* Copy the elements to a common structure */ 156373133261SJohn Soni Jose adapter_get_sol_cqe(phba, psol, &csol_cqe); 156473133261SJohn Soni Jose 1565a7909b39SJayamohan Kallickal cri_index = BE_GET_CRI_FROM_CID(csol_cqe.cid); 1566a7909b39SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cri_index]; 156773133261SJohn Soni Jose 156873133261SJohn Soni Jose pwrb_handle = pwrb_context->pwrb_handle_basestd[ 156973133261SJohn Soni Jose csol_cqe.wrb_index]; 157073133261SJohn Soni Jose 15716733b39aSJayamohan Kallickal task = pwrb_handle->pio_handle; 15726733b39aSJayamohan Kallickal pwrb = pwrb_handle->pwrb; 157373133261SJohn Soni Jose type = ((struct beiscsi_io_task *)task->dd_data)->wrb_type; 157432951dd8SJayamohan Kallickal 1575659743b0SShlomo Pongratz spin_lock_bh(&session->back_lock); 1576bfead3b2SJayamohan Kallickal switch (type) { 15776733b39aSJayamohan Kallickal case HWH_TYPE_IO: 15786733b39aSJayamohan Kallickal case HWH_TYPE_IO_RD: 15796733b39aSJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == 1580dafab8e0SJayamohan Kallickal ISCSI_OP_NOOP_OUT) 158173133261SJohn Soni Jose be_complete_nopin_resp(beiscsi_conn, task, &csol_cqe); 1582dafab8e0SJayamohan Kallickal else 158373133261SJohn Soni Jose be_complete_io(beiscsi_conn, task, &csol_cqe); 15846733b39aSJayamohan Kallickal break; 15856733b39aSJayamohan Kallickal 15866733b39aSJayamohan Kallickal case HWH_TYPE_LOGOUT: 1587dafab8e0SJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT) 158873133261SJohn Soni Jose be_complete_logout(beiscsi_conn, task, &csol_cqe); 1589dafab8e0SJayamohan Kallickal else 159073133261SJohn Soni Jose be_complete_tmf(beiscsi_conn, task, &csol_cqe); 15916733b39aSJayamohan Kallickal break; 15926733b39aSJayamohan Kallickal 15936733b39aSJayamohan Kallickal case HWH_TYPE_LOGIN: 159499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 159599bc5d55SJohn Soni Jose BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, 159699bc5d55SJohn Soni Jose "BM_%d :\t\t No HWH_TYPE_LOGIN Expected in" 159799bc5d55SJohn Soni Jose " hwi_complete_cmd- Solicited path\n"); 15986733b39aSJayamohan Kallickal break; 15996733b39aSJayamohan Kallickal 16006733b39aSJayamohan Kallickal case HWH_TYPE_NOP: 160173133261SJohn Soni Jose be_complete_nopin_resp(beiscsi_conn, task, &csol_cqe); 16026733b39aSJayamohan Kallickal break; 16036733b39aSJayamohan Kallickal 16046733b39aSJayamohan Kallickal default: 160599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_WARNING, 160699bc5d55SJohn Soni Jose BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, 160799bc5d55SJohn Soni Jose "BM_%d : In hwi_complete_cmd, unknown type = %d" 1608bfead3b2SJayamohan Kallickal "wrb_index 0x%x CID 0x%x\n", type, 160973133261SJohn Soni Jose csol_cqe.wrb_index, 161073133261SJohn Soni Jose csol_cqe.cid); 16116733b39aSJayamohan Kallickal break; 16126733b39aSJayamohan Kallickal } 161335e66019SJayamohan Kallickal 1614659743b0SShlomo Pongratz spin_unlock_bh(&session->back_lock); 16156733b39aSJayamohan Kallickal } 16166733b39aSJayamohan Kallickal 16176733b39aSJayamohan Kallickal static struct list_head *hwi_get_async_busy_list(struct hwi_async_pdu_context 16186733b39aSJayamohan Kallickal *pasync_ctx, unsigned int is_header, 16196733b39aSJayamohan Kallickal unsigned int host_write_ptr) 16206733b39aSJayamohan Kallickal { 16216733b39aSJayamohan Kallickal if (is_header) 16226733b39aSJayamohan Kallickal return &pasync_ctx->async_entry[host_write_ptr]. 16236733b39aSJayamohan Kallickal header_busy_list; 16246733b39aSJayamohan Kallickal else 16256733b39aSJayamohan Kallickal return &pasync_ctx->async_entry[host_write_ptr].data_busy_list; 16266733b39aSJayamohan Kallickal } 16276733b39aSJayamohan Kallickal 16286733b39aSJayamohan Kallickal static struct async_pdu_handle * 16296733b39aSJayamohan Kallickal hwi_get_async_handle(struct beiscsi_hba *phba, 16306733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn, 16316733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, 16326733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe, unsigned int *pcq_index) 16336733b39aSJayamohan Kallickal { 16346733b39aSJayamohan Kallickal struct be_bus_address phys_addr; 16356733b39aSJayamohan Kallickal struct list_head *pbusy_list; 16366733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 16376733b39aSJayamohan Kallickal unsigned char is_header = 0; 163873133261SJohn Soni Jose unsigned int index, dpl; 163973133261SJohn Soni Jose 16402c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) { 164173133261SJohn Soni Jose dpl = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe, 164273133261SJohn Soni Jose dpl, pdpdu_cqe); 164373133261SJohn Soni Jose index = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe, 164473133261SJohn Soni Jose index, pdpdu_cqe); 16452c9dfd36SJayamohan Kallickal } else { 16462c9dfd36SJayamohan Kallickal dpl = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2, 16472c9dfd36SJayamohan Kallickal dpl, pdpdu_cqe); 16482c9dfd36SJayamohan Kallickal index = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2, 16492c9dfd36SJayamohan Kallickal index, pdpdu_cqe); 165073133261SJohn Soni Jose } 16516733b39aSJayamohan Kallickal 16526733b39aSJayamohan Kallickal phys_addr.u.a32.address_lo = 165373133261SJohn Soni Jose (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 165473133261SJohn Soni Jose db_addr_lo) / 32] - dpl); 16556733b39aSJayamohan Kallickal phys_addr.u.a32.address_hi = 165673133261SJohn Soni Jose pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 165773133261SJohn Soni Jose db_addr_hi) / 32]; 16586733b39aSJayamohan Kallickal 16596733b39aSJayamohan Kallickal phys_addr.u.a64.address = 16606733b39aSJayamohan Kallickal *((unsigned long long *)(&phys_addr.u.a64.address)); 16616733b39aSJayamohan Kallickal 16626733b39aSJayamohan Kallickal switch (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, code) / 32] 16636733b39aSJayamohan Kallickal & PDUCQE_CODE_MASK) { 16646733b39aSJayamohan Kallickal case UNSOL_HDR_NOTIFY: 16656733b39aSJayamohan Kallickal is_header = 1; 16666733b39aSJayamohan Kallickal 166773133261SJohn Soni Jose pbusy_list = hwi_get_async_busy_list(pasync_ctx, 166873133261SJohn Soni Jose is_header, index); 16696733b39aSJayamohan Kallickal break; 16706733b39aSJayamohan Kallickal case UNSOL_DATA_NOTIFY: 167173133261SJohn Soni Jose pbusy_list = hwi_get_async_busy_list(pasync_ctx, 167273133261SJohn Soni Jose is_header, index); 16736733b39aSJayamohan Kallickal break; 16746733b39aSJayamohan Kallickal default: 16756733b39aSJayamohan Kallickal pbusy_list = NULL; 167699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_WARNING, 167799bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 167899bc5d55SJohn Soni Jose "BM_%d : Unexpected code=%d\n", 16796733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 16806733b39aSJayamohan Kallickal code) / 32] & PDUCQE_CODE_MASK); 16816733b39aSJayamohan Kallickal return NULL; 16826733b39aSJayamohan Kallickal } 16836733b39aSJayamohan Kallickal 16846733b39aSJayamohan Kallickal WARN_ON(list_empty(pbusy_list)); 16856733b39aSJayamohan Kallickal list_for_each_entry(pasync_handle, pbusy_list, link) { 1686dc63aac6SJayamohan Kallickal if (pasync_handle->pa.u.a64.address == phys_addr.u.a64.address) 16876733b39aSJayamohan Kallickal break; 16886733b39aSJayamohan Kallickal } 16896733b39aSJayamohan Kallickal 16906733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 16916733b39aSJayamohan Kallickal 16928a86e833SJayamohan Kallickal pasync_handle->cri = BE_GET_ASYNC_CRI_FROM_CID( 16938a86e833SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid); 16946733b39aSJayamohan Kallickal pasync_handle->is_header = is_header; 169573133261SJohn Soni Jose pasync_handle->buffer_len = dpl; 169673133261SJohn Soni Jose *pcq_index = index; 16976733b39aSJayamohan Kallickal 16986733b39aSJayamohan Kallickal return pasync_handle; 16996733b39aSJayamohan Kallickal } 17006733b39aSJayamohan Kallickal 17016733b39aSJayamohan Kallickal static unsigned int 170299bc5d55SJohn Soni Jose hwi_update_async_writables(struct beiscsi_hba *phba, 170399bc5d55SJohn Soni Jose struct hwi_async_pdu_context *pasync_ctx, 17046733b39aSJayamohan Kallickal unsigned int is_header, unsigned int cq_index) 17056733b39aSJayamohan Kallickal { 17066733b39aSJayamohan Kallickal struct list_head *pbusy_list; 17076733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 17086733b39aSJayamohan Kallickal unsigned int num_entries, writables = 0; 17096733b39aSJayamohan Kallickal unsigned int *pep_read_ptr, *pwritables; 17106733b39aSJayamohan Kallickal 1711dc63aac6SJayamohan Kallickal num_entries = pasync_ctx->num_entries; 17126733b39aSJayamohan Kallickal if (is_header) { 17136733b39aSJayamohan Kallickal pep_read_ptr = &pasync_ctx->async_header.ep_read_ptr; 17146733b39aSJayamohan Kallickal pwritables = &pasync_ctx->async_header.writables; 17156733b39aSJayamohan Kallickal } else { 17166733b39aSJayamohan Kallickal pep_read_ptr = &pasync_ctx->async_data.ep_read_ptr; 17176733b39aSJayamohan Kallickal pwritables = &pasync_ctx->async_data.writables; 17186733b39aSJayamohan Kallickal } 17196733b39aSJayamohan Kallickal 17206733b39aSJayamohan Kallickal while ((*pep_read_ptr) != cq_index) { 17216733b39aSJayamohan Kallickal (*pep_read_ptr)++; 17226733b39aSJayamohan Kallickal *pep_read_ptr = (*pep_read_ptr) % num_entries; 17236733b39aSJayamohan Kallickal 17246733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, is_header, 17256733b39aSJayamohan Kallickal *pep_read_ptr); 17266733b39aSJayamohan Kallickal if (writables == 0) 17276733b39aSJayamohan Kallickal WARN_ON(list_empty(pbusy_list)); 17286733b39aSJayamohan Kallickal 17296733b39aSJayamohan Kallickal if (!list_empty(pbusy_list)) { 17306733b39aSJayamohan Kallickal pasync_handle = list_entry(pbusy_list->next, 17316733b39aSJayamohan Kallickal struct async_pdu_handle, 17326733b39aSJayamohan Kallickal link); 17336733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 17346733b39aSJayamohan Kallickal pasync_handle->consumed = 1; 17356733b39aSJayamohan Kallickal } 17366733b39aSJayamohan Kallickal 17376733b39aSJayamohan Kallickal writables++; 17386733b39aSJayamohan Kallickal } 17396733b39aSJayamohan Kallickal 17406733b39aSJayamohan Kallickal if (!writables) { 174199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 174299bc5d55SJohn Soni Jose BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, 174399bc5d55SJohn Soni Jose "BM_%d : Duplicate notification received - index 0x%x!!\n", 17446733b39aSJayamohan Kallickal cq_index); 17456733b39aSJayamohan Kallickal WARN_ON(1); 17466733b39aSJayamohan Kallickal } 17476733b39aSJayamohan Kallickal 17486733b39aSJayamohan Kallickal *pwritables = *pwritables + writables; 17496733b39aSJayamohan Kallickal return 0; 17506733b39aSJayamohan Kallickal } 17516733b39aSJayamohan Kallickal 17529728d8d0SJayamohan Kallickal static void hwi_free_async_msg(struct beiscsi_hba *phba, 17538a86e833SJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, 17546733b39aSJayamohan Kallickal unsigned int cri) 17556733b39aSJayamohan Kallickal { 17566733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle, *tmp_handle; 17576733b39aSJayamohan Kallickal struct list_head *plist; 17586733b39aSJayamohan Kallickal 17596733b39aSJayamohan Kallickal plist = &pasync_ctx->async_entry[cri].wait_queue.list; 17606733b39aSJayamohan Kallickal list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link) { 17616733b39aSJayamohan Kallickal list_del(&pasync_handle->link); 17626733b39aSJayamohan Kallickal 17639728d8d0SJayamohan Kallickal if (pasync_handle->is_header) { 17646733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 17656733b39aSJayamohan Kallickal &pasync_ctx->async_header.free_list); 17666733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries++; 17676733b39aSJayamohan Kallickal } else { 17686733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 17696733b39aSJayamohan Kallickal &pasync_ctx->async_data.free_list); 17706733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries++; 17716733b39aSJayamohan Kallickal } 17726733b39aSJayamohan Kallickal } 17736733b39aSJayamohan Kallickal 17746733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[cri].wait_queue.list); 17756733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_received = 0; 17766733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0; 17776733b39aSJayamohan Kallickal } 17786733b39aSJayamohan Kallickal 17796733b39aSJayamohan Kallickal static struct phys_addr * 17806733b39aSJayamohan Kallickal hwi_get_ring_address(struct hwi_async_pdu_context *pasync_ctx, 17816733b39aSJayamohan Kallickal unsigned int is_header, unsigned int host_write_ptr) 17826733b39aSJayamohan Kallickal { 17836733b39aSJayamohan Kallickal struct phys_addr *pasync_sge = NULL; 17846733b39aSJayamohan Kallickal 17856733b39aSJayamohan Kallickal if (is_header) 17866733b39aSJayamohan Kallickal pasync_sge = pasync_ctx->async_header.ring_base; 17876733b39aSJayamohan Kallickal else 17886733b39aSJayamohan Kallickal pasync_sge = pasync_ctx->async_data.ring_base; 17896733b39aSJayamohan Kallickal 17906733b39aSJayamohan Kallickal return pasync_sge + host_write_ptr; 17916733b39aSJayamohan Kallickal } 17926733b39aSJayamohan Kallickal 17936733b39aSJayamohan Kallickal static void hwi_post_async_buffers(struct beiscsi_hba *phba, 17948a86e833SJayamohan Kallickal unsigned int is_header, uint8_t ulp_num) 17956733b39aSJayamohan Kallickal { 17966733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 17976733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 17986733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 17996733b39aSJayamohan Kallickal struct list_head *pfree_link, *pbusy_list; 18006733b39aSJayamohan Kallickal struct phys_addr *pasync_sge; 18016733b39aSJayamohan Kallickal unsigned int ring_id, num_entries; 18028a86e833SJayamohan Kallickal unsigned int host_write_num, doorbell_offset; 18036733b39aSJayamohan Kallickal unsigned int writables; 18046733b39aSJayamohan Kallickal unsigned int i = 0; 18056733b39aSJayamohan Kallickal u32 doorbell = 0; 18066733b39aSJayamohan Kallickal 18076733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 18088a86e833SJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr, ulp_num); 1809dc63aac6SJayamohan Kallickal num_entries = pasync_ctx->num_entries; 18106733b39aSJayamohan Kallickal 18116733b39aSJayamohan Kallickal if (is_header) { 18126733b39aSJayamohan Kallickal writables = min(pasync_ctx->async_header.writables, 18136733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries); 18146733b39aSJayamohan Kallickal pfree_link = pasync_ctx->async_header.free_list.next; 18156733b39aSJayamohan Kallickal host_write_num = pasync_ctx->async_header.host_write_ptr; 18168a86e833SJayamohan Kallickal ring_id = phwi_ctrlr->default_pdu_hdr[ulp_num].id; 18178a86e833SJayamohan Kallickal doorbell_offset = phwi_ctrlr->default_pdu_hdr[ulp_num]. 18188a86e833SJayamohan Kallickal doorbell_offset; 18196733b39aSJayamohan Kallickal } else { 18206733b39aSJayamohan Kallickal writables = min(pasync_ctx->async_data.writables, 18216733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries); 18226733b39aSJayamohan Kallickal pfree_link = pasync_ctx->async_data.free_list.next; 18236733b39aSJayamohan Kallickal host_write_num = pasync_ctx->async_data.host_write_ptr; 18248a86e833SJayamohan Kallickal ring_id = phwi_ctrlr->default_pdu_data[ulp_num].id; 18258a86e833SJayamohan Kallickal doorbell_offset = phwi_ctrlr->default_pdu_data[ulp_num]. 18268a86e833SJayamohan Kallickal doorbell_offset; 18276733b39aSJayamohan Kallickal } 18286733b39aSJayamohan Kallickal 18296733b39aSJayamohan Kallickal writables = (writables / 8) * 8; 18306733b39aSJayamohan Kallickal if (writables) { 18316733b39aSJayamohan Kallickal for (i = 0; i < writables; i++) { 18326733b39aSJayamohan Kallickal pbusy_list = 18336733b39aSJayamohan Kallickal hwi_get_async_busy_list(pasync_ctx, is_header, 18346733b39aSJayamohan Kallickal host_write_num); 18356733b39aSJayamohan Kallickal pasync_handle = 18366733b39aSJayamohan Kallickal list_entry(pfree_link, struct async_pdu_handle, 18376733b39aSJayamohan Kallickal link); 18386733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 18396733b39aSJayamohan Kallickal pasync_handle->consumed = 0; 18406733b39aSJayamohan Kallickal 18416733b39aSJayamohan Kallickal pfree_link = pfree_link->next; 18426733b39aSJayamohan Kallickal 18436733b39aSJayamohan Kallickal pasync_sge = hwi_get_ring_address(pasync_ctx, 18446733b39aSJayamohan Kallickal is_header, host_write_num); 18456733b39aSJayamohan Kallickal 18466733b39aSJayamohan Kallickal pasync_sge->hi = pasync_handle->pa.u.a32.address_lo; 18476733b39aSJayamohan Kallickal pasync_sge->lo = pasync_handle->pa.u.a32.address_hi; 18486733b39aSJayamohan Kallickal 18496733b39aSJayamohan Kallickal list_move(&pasync_handle->link, pbusy_list); 18506733b39aSJayamohan Kallickal 18516733b39aSJayamohan Kallickal host_write_num++; 18526733b39aSJayamohan Kallickal host_write_num = host_write_num % num_entries; 18536733b39aSJayamohan Kallickal } 18546733b39aSJayamohan Kallickal 18556733b39aSJayamohan Kallickal if (is_header) { 18566733b39aSJayamohan Kallickal pasync_ctx->async_header.host_write_ptr = 18576733b39aSJayamohan Kallickal host_write_num; 18586733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries -= writables; 18596733b39aSJayamohan Kallickal pasync_ctx->async_header.writables -= writables; 18606733b39aSJayamohan Kallickal pasync_ctx->async_header.busy_entries += writables; 18616733b39aSJayamohan Kallickal } else { 18626733b39aSJayamohan Kallickal pasync_ctx->async_data.host_write_ptr = host_write_num; 18636733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries -= writables; 18646733b39aSJayamohan Kallickal pasync_ctx->async_data.writables -= writables; 18656733b39aSJayamohan Kallickal pasync_ctx->async_data.busy_entries += writables; 18666733b39aSJayamohan Kallickal } 18676733b39aSJayamohan Kallickal 18686733b39aSJayamohan Kallickal doorbell |= ring_id & DB_DEF_PDU_RING_ID_MASK; 18696733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_REARM_SHIFT; 18706733b39aSJayamohan Kallickal doorbell |= 0 << DB_DEF_PDU_EVENT_SHIFT; 18716733b39aSJayamohan Kallickal doorbell |= (writables & DB_DEF_PDU_CQPROC_MASK) 18726733b39aSJayamohan Kallickal << DB_DEF_PDU_CQPROC_SHIFT; 18736733b39aSJayamohan Kallickal 18748a86e833SJayamohan Kallickal iowrite32(doorbell, phba->db_va + doorbell_offset); 18756733b39aSJayamohan Kallickal } 18766733b39aSJayamohan Kallickal } 18776733b39aSJayamohan Kallickal 18786733b39aSJayamohan Kallickal static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba, 18796733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn, 18806733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe) 18816733b39aSJayamohan Kallickal { 18826733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 18836733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 18846733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 18856733b39aSJayamohan Kallickal unsigned int cq_index = -1; 18868a86e833SJayamohan Kallickal uint16_t cri_index = BE_GET_CRI_FROM_CID( 18878a86e833SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid); 18886733b39aSJayamohan Kallickal 18896733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 18908a86e833SJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr, 18918a86e833SJayamohan Kallickal BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, 18928a86e833SJayamohan Kallickal cri_index)); 18936733b39aSJayamohan Kallickal 18946733b39aSJayamohan Kallickal pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx, 18956733b39aSJayamohan Kallickal pdpdu_cqe, &cq_index); 18966733b39aSJayamohan Kallickal BUG_ON(pasync_handle->is_header != 0); 18976733b39aSJayamohan Kallickal if (pasync_handle->consumed == 0) 189899bc5d55SJohn Soni Jose hwi_update_async_writables(phba, pasync_ctx, 189999bc5d55SJohn Soni Jose pasync_handle->is_header, cq_index); 19006733b39aSJayamohan Kallickal 19018a86e833SJayamohan Kallickal hwi_free_async_msg(phba, pasync_ctx, pasync_handle->cri); 19028a86e833SJayamohan Kallickal hwi_post_async_buffers(phba, pasync_handle->is_header, 19038a86e833SJayamohan Kallickal BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, 19048a86e833SJayamohan Kallickal cri_index)); 19056733b39aSJayamohan Kallickal } 19066733b39aSJayamohan Kallickal 19076733b39aSJayamohan Kallickal static unsigned int 19086733b39aSJayamohan Kallickal hwi_fwd_async_msg(struct beiscsi_conn *beiscsi_conn, 19096733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 19106733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, unsigned short cri) 19116733b39aSJayamohan Kallickal { 19126733b39aSJayamohan Kallickal struct list_head *plist; 19136733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 19146733b39aSJayamohan Kallickal void *phdr = NULL; 19156733b39aSJayamohan Kallickal unsigned int hdr_len = 0, buf_len = 0; 19166733b39aSJayamohan Kallickal unsigned int status, index = 0, offset = 0; 19176733b39aSJayamohan Kallickal void *pfirst_buffer = NULL; 19186733b39aSJayamohan Kallickal unsigned int num_buf = 0; 19196733b39aSJayamohan Kallickal 19206733b39aSJayamohan Kallickal plist = &pasync_ctx->async_entry[cri].wait_queue.list; 19216733b39aSJayamohan Kallickal 19226733b39aSJayamohan Kallickal list_for_each_entry(pasync_handle, plist, link) { 19236733b39aSJayamohan Kallickal if (index == 0) { 19246733b39aSJayamohan Kallickal phdr = pasync_handle->pbuffer; 19256733b39aSJayamohan Kallickal hdr_len = pasync_handle->buffer_len; 19266733b39aSJayamohan Kallickal } else { 19276733b39aSJayamohan Kallickal buf_len = pasync_handle->buffer_len; 19286733b39aSJayamohan Kallickal if (!num_buf) { 19296733b39aSJayamohan Kallickal pfirst_buffer = pasync_handle->pbuffer; 19306733b39aSJayamohan Kallickal num_buf++; 19316733b39aSJayamohan Kallickal } 19326733b39aSJayamohan Kallickal memcpy(pfirst_buffer + offset, 19336733b39aSJayamohan Kallickal pasync_handle->pbuffer, buf_len); 1934f2ba02b8SJayamohan Kallickal offset += buf_len; 19356733b39aSJayamohan Kallickal } 19366733b39aSJayamohan Kallickal index++; 19376733b39aSJayamohan Kallickal } 19386733b39aSJayamohan Kallickal 19396733b39aSJayamohan Kallickal status = beiscsi_process_async_pdu(beiscsi_conn, phba, 19406733b39aSJayamohan Kallickal phdr, hdr_len, pfirst_buffer, 1941f2ba02b8SJayamohan Kallickal offset); 19426733b39aSJayamohan Kallickal 19438a86e833SJayamohan Kallickal hwi_free_async_msg(phba, pasync_ctx, cri); 19446733b39aSJayamohan Kallickal return 0; 19456733b39aSJayamohan Kallickal } 19466733b39aSJayamohan Kallickal 19476733b39aSJayamohan Kallickal static unsigned int 19486733b39aSJayamohan Kallickal hwi_gather_async_pdu(struct beiscsi_conn *beiscsi_conn, 19496733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 19506733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle) 19516733b39aSJayamohan Kallickal { 19526733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 19536733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 19546733b39aSJayamohan Kallickal unsigned int bytes_needed = 0, status = 0; 19556733b39aSJayamohan Kallickal unsigned short cri = pasync_handle->cri; 19566733b39aSJayamohan Kallickal struct pdu_base *ppdu; 19576733b39aSJayamohan Kallickal 19586733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 19598a86e833SJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr, 19608a86e833SJayamohan Kallickal BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, 19618a86e833SJayamohan Kallickal BE_GET_CRI_FROM_CID(beiscsi_conn-> 19628a86e833SJayamohan Kallickal beiscsi_conn_cid))); 19636733b39aSJayamohan Kallickal 19646733b39aSJayamohan Kallickal list_del(&pasync_handle->link); 19656733b39aSJayamohan Kallickal if (pasync_handle->is_header) { 19666733b39aSJayamohan Kallickal pasync_ctx->async_header.busy_entries--; 19676733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) { 19688a86e833SJayamohan Kallickal hwi_free_async_msg(phba, pasync_ctx, cri); 19696733b39aSJayamohan Kallickal BUG(); 19706733b39aSJayamohan Kallickal } 19716733b39aSJayamohan Kallickal 19726733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0; 19736733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_received = 1; 19746733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_len = 19756733b39aSJayamohan Kallickal (unsigned short)pasync_handle->buffer_len; 19766733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 19776733b39aSJayamohan Kallickal &pasync_ctx->async_entry[cri].wait_queue.list); 19786733b39aSJayamohan Kallickal 19796733b39aSJayamohan Kallickal ppdu = pasync_handle->pbuffer; 19806733b39aSJayamohan Kallickal bytes_needed = ((((ppdu->dw[offsetof(struct amap_pdu_base, 19816733b39aSJayamohan Kallickal data_len_hi) / 32] & PDUBASE_DATALENHI_MASK) << 8) & 19826733b39aSJayamohan Kallickal 0xFFFF0000) | ((be16_to_cpu((ppdu-> 19836733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_base, data_len_lo) / 32] 19846733b39aSJayamohan Kallickal & PDUBASE_DATALENLO_MASK) >> 16)) & 0x0000FFFF)); 19856733b39aSJayamohan Kallickal 19866733b39aSJayamohan Kallickal if (status == 0) { 19876733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_needed = 19886733b39aSJayamohan Kallickal bytes_needed; 19896733b39aSJayamohan Kallickal 19906733b39aSJayamohan Kallickal if (bytes_needed == 0) 19916733b39aSJayamohan Kallickal status = hwi_fwd_async_msg(beiscsi_conn, phba, 19926733b39aSJayamohan Kallickal pasync_ctx, cri); 19936733b39aSJayamohan Kallickal } 19946733b39aSJayamohan Kallickal } else { 19956733b39aSJayamohan Kallickal pasync_ctx->async_data.busy_entries--; 19966733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) { 19976733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 19986733b39aSJayamohan Kallickal &pasync_ctx->async_entry[cri].wait_queue. 19996733b39aSJayamohan Kallickal list); 20006733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue. 20016733b39aSJayamohan Kallickal bytes_received += 20026733b39aSJayamohan Kallickal (unsigned short)pasync_handle->buffer_len; 20036733b39aSJayamohan Kallickal 20046733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue. 20056733b39aSJayamohan Kallickal bytes_received >= 20066733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue. 20076733b39aSJayamohan Kallickal bytes_needed) 20086733b39aSJayamohan Kallickal status = hwi_fwd_async_msg(beiscsi_conn, phba, 20096733b39aSJayamohan Kallickal pasync_ctx, cri); 20106733b39aSJayamohan Kallickal } 20116733b39aSJayamohan Kallickal } 20126733b39aSJayamohan Kallickal return status; 20136733b39aSJayamohan Kallickal } 20146733b39aSJayamohan Kallickal 20156733b39aSJayamohan Kallickal static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn, 20166733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 20176733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe) 20186733b39aSJayamohan Kallickal { 20196733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 20206733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 20216733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 20226733b39aSJayamohan Kallickal unsigned int cq_index = -1; 20238a86e833SJayamohan Kallickal uint16_t cri_index = BE_GET_CRI_FROM_CID( 20248a86e833SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid); 20256733b39aSJayamohan Kallickal 20266733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 20278a86e833SJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr, 20288a86e833SJayamohan Kallickal BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, 20298a86e833SJayamohan Kallickal cri_index)); 20308a86e833SJayamohan Kallickal 20316733b39aSJayamohan Kallickal pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx, 20326733b39aSJayamohan Kallickal pdpdu_cqe, &cq_index); 20336733b39aSJayamohan Kallickal 20346733b39aSJayamohan Kallickal if (pasync_handle->consumed == 0) 203599bc5d55SJohn Soni Jose hwi_update_async_writables(phba, pasync_ctx, 203699bc5d55SJohn Soni Jose pasync_handle->is_header, cq_index); 203799bc5d55SJohn Soni Jose 20386733b39aSJayamohan Kallickal hwi_gather_async_pdu(beiscsi_conn, phba, pasync_handle); 20398a86e833SJayamohan Kallickal hwi_post_async_buffers(phba, pasync_handle->is_header, 20408a86e833SJayamohan Kallickal BEISCSI_GET_ULP_FROM_CRI( 20418a86e833SJayamohan Kallickal phwi_ctrlr, cri_index)); 20426733b39aSJayamohan Kallickal } 20436733b39aSJayamohan Kallickal 20442e4e8f65SJitendra Bhivare void beiscsi_process_mcc_cq(struct beiscsi_hba *phba) 2045756d29c8SJayamohan Kallickal { 2046756d29c8SJayamohan Kallickal struct be_queue_info *mcc_cq; 2047756d29c8SJayamohan Kallickal struct be_mcc_compl *mcc_compl; 2048756d29c8SJayamohan Kallickal unsigned int num_processed = 0; 2049756d29c8SJayamohan Kallickal 2050756d29c8SJayamohan Kallickal mcc_cq = &phba->ctrl.mcc_obj.cq; 2051756d29c8SJayamohan Kallickal mcc_compl = queue_tail_node(mcc_cq); 2052756d29c8SJayamohan Kallickal mcc_compl->flags = le32_to_cpu(mcc_compl->flags); 2053756d29c8SJayamohan Kallickal while (mcc_compl->flags & CQE_FLAGS_VALID_MASK) { 2054756d29c8SJayamohan Kallickal if (num_processed >= 32) { 2055756d29c8SJayamohan Kallickal hwi_ring_cq_db(phba, mcc_cq->id, 20561094cf68SJitendra Bhivare num_processed, 0); 2057756d29c8SJayamohan Kallickal num_processed = 0; 2058756d29c8SJayamohan Kallickal } 2059756d29c8SJayamohan Kallickal if (mcc_compl->flags & CQE_FLAGS_ASYNC_MASK) { 206053aefe25SJitendra Bhivare beiscsi_process_async_event(phba, mcc_compl); 2061756d29c8SJayamohan Kallickal } else if (mcc_compl->flags & CQE_FLAGS_COMPLETED_MASK) { 20622e4e8f65SJitendra Bhivare beiscsi_process_mcc_compl(&phba->ctrl, mcc_compl); 2063756d29c8SJayamohan Kallickal } 2064756d29c8SJayamohan Kallickal 2065756d29c8SJayamohan Kallickal mcc_compl->flags = 0; 2066756d29c8SJayamohan Kallickal queue_tail_inc(mcc_cq); 2067756d29c8SJayamohan Kallickal mcc_compl = queue_tail_node(mcc_cq); 2068756d29c8SJayamohan Kallickal mcc_compl->flags = le32_to_cpu(mcc_compl->flags); 2069756d29c8SJayamohan Kallickal num_processed++; 2070756d29c8SJayamohan Kallickal } 2071756d29c8SJayamohan Kallickal 2072756d29c8SJayamohan Kallickal if (num_processed > 0) 20731094cf68SJitendra Bhivare hwi_ring_cq_db(phba, mcc_cq->id, num_processed, 1); 2074756d29c8SJayamohan Kallickal } 2075bfead3b2SJayamohan Kallickal 20766763daaeSJohn Soni Jose /** 20776763daaeSJohn Soni Jose * beiscsi_process_cq()- Process the Completion Queue 20786763daaeSJohn Soni Jose * @pbe_eq: Event Q on which the Completion has come 20791094cf68SJitendra Bhivare * @budget: Max number of events to processed 20806763daaeSJohn Soni Jose * 20816763daaeSJohn Soni Jose * return 20826763daaeSJohn Soni Jose * Number of Completion Entries processed. 20836763daaeSJohn Soni Jose **/ 20841094cf68SJitendra Bhivare unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq, int budget) 20856733b39aSJayamohan Kallickal { 20866733b39aSJayamohan Kallickal struct be_queue_info *cq; 20876733b39aSJayamohan Kallickal struct sol_cqe *sol; 20886733b39aSJayamohan Kallickal struct dmsg_cqe *dmsg; 20891094cf68SJitendra Bhivare unsigned int total = 0; 20906733b39aSJayamohan Kallickal unsigned int num_processed = 0; 20910a513dd8SJohn Soni Jose unsigned short code = 0, cid = 0; 2092a7909b39SJayamohan Kallickal uint16_t cri_index = 0; 20936733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 2094c2462288SJayamohan Kallickal struct beiscsi_endpoint *beiscsi_ep; 2095c2462288SJayamohan Kallickal struct iscsi_endpoint *ep; 2096bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 20976733b39aSJayamohan Kallickal 2098bfead3b2SJayamohan Kallickal cq = pbe_eq->cq; 20996733b39aSJayamohan Kallickal sol = queue_tail_node(cq); 2100bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 21016733b39aSJayamohan Kallickal 21026733b39aSJayamohan Kallickal while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] & 21036733b39aSJayamohan Kallickal CQE_VALID_MASK) { 21046733b39aSJayamohan Kallickal be_dws_le_to_cpu(sol, sizeof(struct sol_cqe)); 21056733b39aSJayamohan Kallickal 210673133261SJohn Soni Jose code = (sol->dw[offsetof(struct amap_sol_cqe, code) / 210773133261SJohn Soni Jose 32] & CQE_CODE_MASK); 210832951dd8SJayamohan Kallickal 210973133261SJohn Soni Jose /* Get the CID */ 21102c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) { 21112c9dfd36SJayamohan Kallickal cid = AMAP_GET_BITS(struct amap_sol_cqe, cid, sol); 21122c9dfd36SJayamohan Kallickal } else { 211373133261SJohn Soni Jose if ((code == DRIVERMSG_NOTIFY) || 211473133261SJohn Soni Jose (code == UNSOL_HDR_NOTIFY) || 211573133261SJohn Soni Jose (code == UNSOL_DATA_NOTIFY)) 211673133261SJohn Soni Jose cid = AMAP_GET_BITS( 211773133261SJohn Soni Jose struct amap_i_t_dpdu_cqe_v2, 211873133261SJohn Soni Jose cid, sol); 211973133261SJohn Soni Jose else 212073133261SJohn Soni Jose cid = AMAP_GET_BITS(struct amap_sol_cqe_v2, 212173133261SJohn Soni Jose cid, sol); 21222c9dfd36SJayamohan Kallickal } 212373133261SJohn Soni Jose 2124a7909b39SJayamohan Kallickal cri_index = BE_GET_CRI_FROM_CID(cid); 2125a7909b39SJayamohan Kallickal ep = phba->ep_array[cri_index]; 2126b7ab35b1SJayamohan Kallickal 2127b7ab35b1SJayamohan Kallickal if (ep == NULL) { 2128b7ab35b1SJayamohan Kallickal /* connection has already been freed 2129b7ab35b1SJayamohan Kallickal * just move on to next one 2130b7ab35b1SJayamohan Kallickal */ 2131b7ab35b1SJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 2132b7ab35b1SJayamohan Kallickal BEISCSI_LOG_INIT, 2133b7ab35b1SJayamohan Kallickal "BM_%d : proc cqe of disconn ep: cid %d\n", 2134b7ab35b1SJayamohan Kallickal cid); 2135b7ab35b1SJayamohan Kallickal goto proc_next_cqe; 2136b7ab35b1SJayamohan Kallickal } 2137b7ab35b1SJayamohan Kallickal 2138c2462288SJayamohan Kallickal beiscsi_ep = ep->dd_data; 2139c2462288SJayamohan Kallickal beiscsi_conn = beiscsi_ep->conn; 2140756d29c8SJayamohan Kallickal 21411094cf68SJitendra Bhivare /* replenish cq */ 21421094cf68SJitendra Bhivare if (num_processed == 32) { 21431094cf68SJitendra Bhivare hwi_ring_cq_db(phba, cq->id, 32, 0); 21446733b39aSJayamohan Kallickal num_processed = 0; 21456733b39aSJayamohan Kallickal } 21461094cf68SJitendra Bhivare total++; 21476733b39aSJayamohan Kallickal 21480a513dd8SJohn Soni Jose switch (code) { 21496733b39aSJayamohan Kallickal case SOL_CMD_COMPLETE: 21506733b39aSJayamohan Kallickal hwi_complete_cmd(beiscsi_conn, phba, sol); 21516733b39aSJayamohan Kallickal break; 21526733b39aSJayamohan Kallickal case DRIVERMSG_NOTIFY: 215399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, 215499bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 21556763daaeSJohn Soni Jose "BM_%d : Received %s[%d] on CID : %d\n", 21566763daaeSJohn Soni Jose cqe_desc[code], code, cid); 215799bc5d55SJohn Soni Jose 21586733b39aSJayamohan Kallickal dmsg = (struct dmsg_cqe *)sol; 21596733b39aSJayamohan Kallickal hwi_complete_drvr_msgs(beiscsi_conn, phba, sol); 21606733b39aSJayamohan Kallickal break; 21616733b39aSJayamohan Kallickal case UNSOL_HDR_NOTIFY: 216299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, 216399bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 21646763daaeSJohn Soni Jose "BM_%d : Received %s[%d] on CID : %d\n", 21656763daaeSJohn Soni Jose cqe_desc[code], code, cid); 216699bc5d55SJohn Soni Jose 21678f09a3b9SJayamohan Kallickal spin_lock_bh(&phba->async_pdu_lock); 2168bfead3b2SJayamohan Kallickal hwi_process_default_pdu_ring(beiscsi_conn, phba, 2169bfead3b2SJayamohan Kallickal (struct i_t_dpdu_cqe *)sol); 21708f09a3b9SJayamohan Kallickal spin_unlock_bh(&phba->async_pdu_lock); 2171bfead3b2SJayamohan Kallickal break; 21726733b39aSJayamohan Kallickal case UNSOL_DATA_NOTIFY: 217399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, 217499bc5d55SJohn Soni Jose BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, 21756763daaeSJohn Soni Jose "BM_%d : Received %s[%d] on CID : %d\n", 21766763daaeSJohn Soni Jose cqe_desc[code], code, cid); 217799bc5d55SJohn Soni Jose 21788f09a3b9SJayamohan Kallickal spin_lock_bh(&phba->async_pdu_lock); 21796733b39aSJayamohan Kallickal hwi_process_default_pdu_ring(beiscsi_conn, phba, 21806733b39aSJayamohan Kallickal (struct i_t_dpdu_cqe *)sol); 21818f09a3b9SJayamohan Kallickal spin_unlock_bh(&phba->async_pdu_lock); 21826733b39aSJayamohan Kallickal break; 21836733b39aSJayamohan Kallickal case CXN_INVALIDATE_INDEX_NOTIFY: 21846733b39aSJayamohan Kallickal case CMD_INVALIDATED_NOTIFY: 21856733b39aSJayamohan Kallickal case CXN_INVALIDATE_NOTIFY: 218699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 218799bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 21886763daaeSJohn Soni Jose "BM_%d : Ignoring %s[%d] on CID : %d\n", 21896763daaeSJohn Soni Jose cqe_desc[code], code, cid); 21906733b39aSJayamohan Kallickal break; 21911094cf68SJitendra Bhivare case CXN_KILLED_HDR_DIGEST_ERR: 21926733b39aSJayamohan Kallickal case SOL_CMD_KILLED_DATA_DIGEST_ERR: 21931094cf68SJitendra Bhivare beiscsi_log(phba, KERN_ERR, 21941094cf68SJitendra Bhivare BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, 21951094cf68SJitendra Bhivare "BM_%d : Cmd Notification %s[%d] on CID : %d\n", 21961094cf68SJitendra Bhivare cqe_desc[code], code, cid); 21971094cf68SJitendra Bhivare break; 21986733b39aSJayamohan Kallickal case CMD_KILLED_INVALID_STATSN_RCVD: 21996733b39aSJayamohan Kallickal case CMD_KILLED_INVALID_R2T_RCVD: 22006733b39aSJayamohan Kallickal case CMD_CXN_KILLED_LUN_INVALID: 22016733b39aSJayamohan Kallickal case CMD_CXN_KILLED_ICD_INVALID: 22026733b39aSJayamohan Kallickal case CMD_CXN_KILLED_ITT_INVALID: 22036733b39aSJayamohan Kallickal case CMD_CXN_KILLED_SEQ_OUTOFORDER: 22046733b39aSJayamohan Kallickal case CMD_CXN_KILLED_INVALID_DATASN_RCVD: 220599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 220699bc5d55SJohn Soni Jose BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, 22076763daaeSJohn Soni Jose "BM_%d : Cmd Notification %s[%d] on CID : %d\n", 22086763daaeSJohn Soni Jose cqe_desc[code], code, cid); 22096733b39aSJayamohan Kallickal break; 22106733b39aSJayamohan Kallickal case UNSOL_DATA_DIGEST_ERROR_NOTIFY: 221199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 221299bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 22136763daaeSJohn Soni Jose "BM_%d : Dropping %s[%d] on DPDU ring on CID : %d\n", 22146763daaeSJohn Soni Jose cqe_desc[code], code, cid); 22158f09a3b9SJayamohan Kallickal spin_lock_bh(&phba->async_pdu_lock); 22166733b39aSJayamohan Kallickal hwi_flush_default_pdu_buffer(phba, beiscsi_conn, 22176733b39aSJayamohan Kallickal (struct i_t_dpdu_cqe *) sol); 22188f09a3b9SJayamohan Kallickal spin_unlock_bh(&phba->async_pdu_lock); 22196733b39aSJayamohan Kallickal break; 22206733b39aSJayamohan Kallickal case CXN_KILLED_PDU_SIZE_EXCEEDS_DSL: 22216733b39aSJayamohan Kallickal case CXN_KILLED_BURST_LEN_MISMATCH: 22226733b39aSJayamohan Kallickal case CXN_KILLED_AHS_RCVD: 22236733b39aSJayamohan Kallickal case CXN_KILLED_UNKNOWN_HDR: 22246733b39aSJayamohan Kallickal case CXN_KILLED_STALE_ITT_TTT_RCVD: 22256733b39aSJayamohan Kallickal case CXN_KILLED_INVALID_ITT_TTT_RCVD: 22266733b39aSJayamohan Kallickal case CXN_KILLED_TIMED_OUT: 22276733b39aSJayamohan Kallickal case CXN_KILLED_FIN_RCVD: 22286763daaeSJohn Soni Jose case CXN_KILLED_RST_SENT: 22296763daaeSJohn Soni Jose case CXN_KILLED_RST_RCVD: 22306733b39aSJayamohan Kallickal case CXN_KILLED_BAD_UNSOL_PDU_RCVD: 22316733b39aSJayamohan Kallickal case CXN_KILLED_BAD_WRB_INDEX_ERROR: 22326733b39aSJayamohan Kallickal case CXN_KILLED_OVER_RUN_RESIDUAL: 22336733b39aSJayamohan Kallickal case CXN_KILLED_UNDER_RUN_RESIDUAL: 22346733b39aSJayamohan Kallickal case CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN: 223599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 223699bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 22376763daaeSJohn Soni Jose "BM_%d : Event %s[%d] received on CID : %d\n", 22386763daaeSJohn Soni Jose cqe_desc[code], code, cid); 22390a513dd8SJohn Soni Jose if (beiscsi_conn) 22406733b39aSJayamohan Kallickal iscsi_conn_failure(beiscsi_conn->conn, 22416733b39aSJayamohan Kallickal ISCSI_ERR_CONN_FAILED); 22426733b39aSJayamohan Kallickal break; 22436733b39aSJayamohan Kallickal default: 224499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 224599bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 22466763daaeSJohn Soni Jose "BM_%d : Invalid CQE Event Received Code : %d" 22476763daaeSJohn Soni Jose "CID 0x%x...\n", 22480a513dd8SJohn Soni Jose code, cid); 22496733b39aSJayamohan Kallickal break; 22506733b39aSJayamohan Kallickal } 22516733b39aSJayamohan Kallickal 2252b7ab35b1SJayamohan Kallickal proc_next_cqe: 22536733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_sol_cqe, valid, sol, 0); 22546733b39aSJayamohan Kallickal queue_tail_inc(cq); 22556733b39aSJayamohan Kallickal sol = queue_tail_node(cq); 22566733b39aSJayamohan Kallickal num_processed++; 22571094cf68SJitendra Bhivare if (total == budget) 22581094cf68SJitendra Bhivare break; 22596733b39aSJayamohan Kallickal } 22606733b39aSJayamohan Kallickal 22611094cf68SJitendra Bhivare hwi_ring_cq_db(phba, cq->id, num_processed, 1); 22621094cf68SJitendra Bhivare return total; 22636733b39aSJayamohan Kallickal } 22646733b39aSJayamohan Kallickal 2265756d29c8SJayamohan Kallickal void beiscsi_process_all_cqs(struct work_struct *work) 22666733b39aSJayamohan Kallickal { 22676733b39aSJayamohan Kallickal unsigned long flags; 2268bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 2269bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 227072fb46a9SJohn Soni Jose struct beiscsi_hba *phba; 227172fb46a9SJohn Soni Jose struct be_eq_obj *pbe_eq = 227272fb46a9SJohn Soni Jose container_of(work, struct be_eq_obj, work_cqs); 22736733b39aSJayamohan Kallickal 227472fb46a9SJohn Soni Jose phba = pbe_eq->phba; 2275bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 2276bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 2277bfead3b2SJayamohan Kallickal 227872fb46a9SJohn Soni Jose if (pbe_eq->todo_mcc_cq) { 22796733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 228072fb46a9SJohn Soni Jose pbe_eq->todo_mcc_cq = false; 22816733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 22822e4e8f65SJitendra Bhivare beiscsi_process_mcc_cq(phba); 22836733b39aSJayamohan Kallickal } 22846733b39aSJayamohan Kallickal 228572fb46a9SJohn Soni Jose if (pbe_eq->todo_cq) { 22866733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 228772fb46a9SJohn Soni Jose pbe_eq->todo_cq = false; 22886733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 22891094cf68SJitendra Bhivare beiscsi_process_cq(pbe_eq, BE2_MAX_NUM_CQ_PROC); 22906733b39aSJayamohan Kallickal } 229172fb46a9SJohn Soni Jose 229272fb46a9SJohn Soni Jose /* rearm EQ for further interrupts */ 229372fb46a9SJohn Soni Jose hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1); 22946733b39aSJayamohan Kallickal } 22956733b39aSJayamohan Kallickal 2296511cbce2SChristoph Hellwig static int be_iopoll(struct irq_poll *iop, int budget) 22976733b39aSJayamohan Kallickal { 22981094cf68SJitendra Bhivare unsigned int ret, num_eq_processed; 22996733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 2300bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 23011094cf68SJitendra Bhivare struct be_eq_entry *eqe = NULL; 23021094cf68SJitendra Bhivare struct be_queue_info *eq; 23036733b39aSJayamohan Kallickal 23041094cf68SJitendra Bhivare num_eq_processed = 0; 2305bfead3b2SJayamohan Kallickal pbe_eq = container_of(iop, struct be_eq_obj, iopoll); 23061094cf68SJitendra Bhivare phba = pbe_eq->phba; 23071094cf68SJitendra Bhivare eq = &pbe_eq->q; 23081094cf68SJitendra Bhivare eqe = queue_tail_node(eq); 23091094cf68SJitendra Bhivare 23101094cf68SJitendra Bhivare while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] & 23111094cf68SJitendra Bhivare EQE_VALID_MASK) { 23121094cf68SJitendra Bhivare AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 23131094cf68SJitendra Bhivare queue_tail_inc(eq); 23141094cf68SJitendra Bhivare eqe = queue_tail_node(eq); 23151094cf68SJitendra Bhivare num_eq_processed++; 23161094cf68SJitendra Bhivare } 23171094cf68SJitendra Bhivare 23181094cf68SJitendra Bhivare hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 0, 1); 23191094cf68SJitendra Bhivare 23201094cf68SJitendra Bhivare ret = beiscsi_process_cq(pbe_eq, budget); 232173af08e1SJayamohan Kallickal pbe_eq->cq_count += ret; 23226733b39aSJayamohan Kallickal if (ret < budget) { 2323511cbce2SChristoph Hellwig irq_poll_complete(iop); 232499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, 232599bc5d55SJohn Soni Jose BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, 23261094cf68SJitendra Bhivare "BM_%d : rearm pbe_eq->q.id =%d ret %d\n", 23271094cf68SJitendra Bhivare pbe_eq->q.id, ret); 2328bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1); 23296733b39aSJayamohan Kallickal } 23306733b39aSJayamohan Kallickal return ret; 23316733b39aSJayamohan Kallickal } 23326733b39aSJayamohan Kallickal 23336733b39aSJayamohan Kallickal static void 233409a1093aSJohn Soni Jose hwi_write_sgl_v2(struct iscsi_wrb *pwrb, struct scatterlist *sg, 233509a1093aSJohn Soni Jose unsigned int num_sg, struct beiscsi_io_task *io_task) 233609a1093aSJohn Soni Jose { 233709a1093aSJohn Soni Jose struct iscsi_sge *psgl; 233809a1093aSJohn Soni Jose unsigned int sg_len, index; 233909a1093aSJohn Soni Jose unsigned int sge_len = 0; 234009a1093aSJohn Soni Jose unsigned long long addr; 234109a1093aSJohn Soni Jose struct scatterlist *l_sg; 234209a1093aSJohn Soni Jose unsigned int offset; 234309a1093aSJohn Soni Jose 234409a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, iscsi_bhs_addr_lo, pwrb, 234509a1093aSJohn Soni Jose io_task->bhs_pa.u.a32.address_lo); 234609a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, iscsi_bhs_addr_hi, pwrb, 234709a1093aSJohn Soni Jose io_task->bhs_pa.u.a32.address_hi); 234809a1093aSJohn Soni Jose 234909a1093aSJohn Soni Jose l_sg = sg; 235009a1093aSJohn Soni Jose for (index = 0; (index < num_sg) && (index < 2); index++, 235109a1093aSJohn Soni Jose sg = sg_next(sg)) { 235209a1093aSJohn Soni Jose if (index == 0) { 235309a1093aSJohn Soni Jose sg_len = sg_dma_len(sg); 235409a1093aSJohn Soni Jose addr = (u64) sg_dma_address(sg); 235509a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 235609a1093aSJohn Soni Jose sge0_addr_lo, pwrb, 235709a1093aSJohn Soni Jose lower_32_bits(addr)); 235809a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 235909a1093aSJohn Soni Jose sge0_addr_hi, pwrb, 236009a1093aSJohn Soni Jose upper_32_bits(addr)); 236109a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 236209a1093aSJohn Soni Jose sge0_len, pwrb, 236309a1093aSJohn Soni Jose sg_len); 236409a1093aSJohn Soni Jose sge_len = sg_len; 236509a1093aSJohn Soni Jose } else { 236609a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_r2t_offset, 236709a1093aSJohn Soni Jose pwrb, sge_len); 236809a1093aSJohn Soni Jose sg_len = sg_dma_len(sg); 236909a1093aSJohn Soni Jose addr = (u64) sg_dma_address(sg); 237009a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 237109a1093aSJohn Soni Jose sge1_addr_lo, pwrb, 237209a1093aSJohn Soni Jose lower_32_bits(addr)); 237309a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 237409a1093aSJohn Soni Jose sge1_addr_hi, pwrb, 237509a1093aSJohn Soni Jose upper_32_bits(addr)); 237609a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 237709a1093aSJohn Soni Jose sge1_len, pwrb, 237809a1093aSJohn Soni Jose sg_len); 237909a1093aSJohn Soni Jose } 238009a1093aSJohn Soni Jose } 238109a1093aSJohn Soni Jose psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 238209a1093aSJohn Soni Jose memset(psgl, 0, sizeof(*psgl) * BE2_SGE); 238309a1093aSJohn Soni Jose 238409a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2); 238509a1093aSJohn Soni Jose 238609a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 238709a1093aSJohn Soni Jose io_task->bhs_pa.u.a32.address_hi); 238809a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 238909a1093aSJohn Soni Jose io_task->bhs_pa.u.a32.address_lo); 239009a1093aSJohn Soni Jose 239109a1093aSJohn Soni Jose if (num_sg == 1) { 239209a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge0_last, pwrb, 239309a1093aSJohn Soni Jose 1); 239409a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_last, pwrb, 239509a1093aSJohn Soni Jose 0); 239609a1093aSJohn Soni Jose } else if (num_sg == 2) { 239709a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge0_last, pwrb, 239809a1093aSJohn Soni Jose 0); 239909a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_last, pwrb, 240009a1093aSJohn Soni Jose 1); 240109a1093aSJohn Soni Jose } else { 240209a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge0_last, pwrb, 240309a1093aSJohn Soni Jose 0); 240409a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_last, pwrb, 240509a1093aSJohn Soni Jose 0); 240609a1093aSJohn Soni Jose } 240709a1093aSJohn Soni Jose 240809a1093aSJohn Soni Jose sg = l_sg; 240909a1093aSJohn Soni Jose psgl++; 241009a1093aSJohn Soni Jose psgl++; 241109a1093aSJohn Soni Jose offset = 0; 241209a1093aSJohn Soni Jose for (index = 0; index < num_sg; index++, sg = sg_next(sg), psgl++) { 241309a1093aSJohn Soni Jose sg_len = sg_dma_len(sg); 241409a1093aSJohn Soni Jose addr = (u64) sg_dma_address(sg); 241509a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 241609a1093aSJohn Soni Jose lower_32_bits(addr)); 241709a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 241809a1093aSJohn Soni Jose upper_32_bits(addr)); 241909a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len); 242009a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset); 242109a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 242209a1093aSJohn Soni Jose offset += sg_len; 242309a1093aSJohn Soni Jose } 242409a1093aSJohn Soni Jose psgl--; 242509a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 242609a1093aSJohn Soni Jose } 242709a1093aSJohn Soni Jose 242809a1093aSJohn Soni Jose static void 24296733b39aSJayamohan Kallickal hwi_write_sgl(struct iscsi_wrb *pwrb, struct scatterlist *sg, 24306733b39aSJayamohan Kallickal unsigned int num_sg, struct beiscsi_io_task *io_task) 24316733b39aSJayamohan Kallickal { 24326733b39aSJayamohan Kallickal struct iscsi_sge *psgl; 243358ff4bd0SJayamohan Kallickal unsigned int sg_len, index; 24346733b39aSJayamohan Kallickal unsigned int sge_len = 0; 24356733b39aSJayamohan Kallickal unsigned long long addr; 24366733b39aSJayamohan Kallickal struct scatterlist *l_sg; 24376733b39aSJayamohan Kallickal unsigned int offset; 24386733b39aSJayamohan Kallickal 24396733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb, 24406733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 24416733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb, 24426733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 24436733b39aSJayamohan Kallickal 24446733b39aSJayamohan Kallickal l_sg = sg; 244548bd86cfSJayamohan Kallickal for (index = 0; (index < num_sg) && (index < 2); index++, 244648bd86cfSJayamohan Kallickal sg = sg_next(sg)) { 24476733b39aSJayamohan Kallickal if (index == 0) { 24486733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 24496733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 24506733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb, 2451457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 24526733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb, 2453457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 24546733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb, 24556733b39aSJayamohan Kallickal sg_len); 24566733b39aSJayamohan Kallickal sge_len = sg_len; 24576733b39aSJayamohan Kallickal } else { 24586733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_r2t_offset, 24596733b39aSJayamohan Kallickal pwrb, sge_len); 24606733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 24616733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 24626733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_lo, pwrb, 2463457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 24646733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_hi, pwrb, 2465457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 24666733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_len, pwrb, 24676733b39aSJayamohan Kallickal sg_len); 24686733b39aSJayamohan Kallickal } 24696733b39aSJayamohan Kallickal } 24706733b39aSJayamohan Kallickal psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 24716733b39aSJayamohan Kallickal memset(psgl, 0, sizeof(*psgl) * BE2_SGE); 24726733b39aSJayamohan Kallickal 24736733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2); 24746733b39aSJayamohan Kallickal 24756733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 24766733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 24776733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 24786733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 24796733b39aSJayamohan Kallickal 2480caf818f1SJayamohan Kallickal if (num_sg == 1) { 2481caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 2482caf818f1SJayamohan Kallickal 1); 2483caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 2484caf818f1SJayamohan Kallickal 0); 2485caf818f1SJayamohan Kallickal } else if (num_sg == 2) { 2486caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 2487caf818f1SJayamohan Kallickal 0); 2488caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 2489caf818f1SJayamohan Kallickal 1); 2490caf818f1SJayamohan Kallickal } else { 2491caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 2492caf818f1SJayamohan Kallickal 0); 2493caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 2494caf818f1SJayamohan Kallickal 0); 2495caf818f1SJayamohan Kallickal } 24966733b39aSJayamohan Kallickal sg = l_sg; 24976733b39aSJayamohan Kallickal psgl++; 24986733b39aSJayamohan Kallickal psgl++; 24996733b39aSJayamohan Kallickal offset = 0; 250048bd86cfSJayamohan Kallickal for (index = 0; index < num_sg; index++, sg = sg_next(sg), psgl++) { 25016733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 25026733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 25036733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 25046733b39aSJayamohan Kallickal (addr & 0xFFFFFFFF)); 25056733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 25066733b39aSJayamohan Kallickal (addr >> 32)); 25076733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len); 25086733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset); 25096733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 25106733b39aSJayamohan Kallickal offset += sg_len; 25116733b39aSJayamohan Kallickal } 25126733b39aSJayamohan Kallickal psgl--; 25136733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 25146733b39aSJayamohan Kallickal } 25156733b39aSJayamohan Kallickal 2516d629c471SJohn Soni Jose /** 2517d629c471SJohn Soni Jose * hwi_write_buffer()- Populate the WRB with task info 2518d629c471SJohn Soni Jose * @pwrb: ptr to the WRB entry 2519d629c471SJohn Soni Jose * @task: iscsi task which is to be executed 2520d629c471SJohn Soni Jose **/ 2521e0493627SAlexey Khoroshilov static int hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task) 25226733b39aSJayamohan Kallickal { 25236733b39aSJayamohan Kallickal struct iscsi_sge *psgl; 25246733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 25256733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = io_task->conn; 25266733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 252709a1093aSJohn Soni Jose uint8_t dsp_value = 0; 25286733b39aSJayamohan Kallickal 25296733b39aSJayamohan Kallickal io_task->bhs_len = sizeof(struct be_nonio_bhs) - 2; 25306733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb, 25316733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 25326733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb, 25336733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 25346733b39aSJayamohan Kallickal 25356733b39aSJayamohan Kallickal if (task->data) { 253609a1093aSJohn Soni Jose 253709a1093aSJohn Soni Jose /* Check for the data_count */ 253809a1093aSJohn Soni Jose dsp_value = (task->data_count) ? 1 : 0; 253909a1093aSJohn Soni Jose 25402c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) 25412c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, 254209a1093aSJohn Soni Jose pwrb, dsp_value); 254309a1093aSJohn Soni Jose else 25442c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, dsp, 254509a1093aSJohn Soni Jose pwrb, dsp_value); 254609a1093aSJohn Soni Jose 254709a1093aSJohn Soni Jose /* Map addr only if there is data_count */ 254809a1093aSJohn Soni Jose if (dsp_value) { 2549d629c471SJohn Soni Jose io_task->mtask_addr = pci_map_single(phba->pcidev, 25506733b39aSJayamohan Kallickal task->data, 2551d629c471SJohn Soni Jose task->data_count, 2552d629c471SJohn Soni Jose PCI_DMA_TODEVICE); 2553e0493627SAlexey Khoroshilov if (pci_dma_mapping_error(phba->pcidev, 2554e0493627SAlexey Khoroshilov io_task->mtask_addr)) 2555e0493627SAlexey Khoroshilov return -ENOMEM; 2556d629c471SJohn Soni Jose io_task->mtask_data_count = task->data_count; 255709a1093aSJohn Soni Jose } else 2558d629c471SJohn Soni Jose io_task->mtask_addr = 0; 255909a1093aSJohn Soni Jose 25606733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb, 2561d629c471SJohn Soni Jose lower_32_bits(io_task->mtask_addr)); 25626733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb, 2563d629c471SJohn Soni Jose upper_32_bits(io_task->mtask_addr)); 25646733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb, 25656733b39aSJayamohan Kallickal task->data_count); 25666733b39aSJayamohan Kallickal 25676733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1); 25686733b39aSJayamohan Kallickal } else { 25696733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 2570d629c471SJohn Soni Jose io_task->mtask_addr = 0; 25716733b39aSJayamohan Kallickal } 25726733b39aSJayamohan Kallickal 25736733b39aSJayamohan Kallickal psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 25746733b39aSJayamohan Kallickal 25756733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len); 25766733b39aSJayamohan Kallickal 25776733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 25786733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 25796733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 25806733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 25816733b39aSJayamohan Kallickal if (task->data) { 25826733b39aSJayamohan Kallickal psgl++; 25836733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 0); 25846733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 0); 25856733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0); 25866733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, 0); 25876733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, rsvd0, psgl, 0); 25886733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 25896733b39aSJayamohan Kallickal 25906733b39aSJayamohan Kallickal psgl++; 25916733b39aSJayamohan Kallickal if (task->data) { 25926733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 2593d629c471SJohn Soni Jose lower_32_bits(io_task->mtask_addr)); 25946733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 2595d629c471SJohn Soni Jose upper_32_bits(io_task->mtask_addr)); 25966733b39aSJayamohan Kallickal } 25976733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0x106); 25986733b39aSJayamohan Kallickal } 25996733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 2600e0493627SAlexey Khoroshilov return 0; 26016733b39aSJayamohan Kallickal } 26026733b39aSJayamohan Kallickal 2603843ae752SJayamohan Kallickal /** 2604843ae752SJayamohan Kallickal * beiscsi_find_mem_req()- Find mem needed 2605843ae752SJayamohan Kallickal * @phba: ptr to HBA struct 2606843ae752SJayamohan Kallickal **/ 26076733b39aSJayamohan Kallickal static void beiscsi_find_mem_req(struct beiscsi_hba *phba) 26086733b39aSJayamohan Kallickal { 26098a86e833SJayamohan Kallickal uint8_t mem_descr_index, ulp_num; 2610bfead3b2SJayamohan Kallickal unsigned int num_cq_pages, num_async_pdu_buf_pages; 26116733b39aSJayamohan Kallickal unsigned int num_async_pdu_data_pages, wrb_sz_per_cxn; 26126733b39aSJayamohan Kallickal unsigned int num_async_pdu_buf_sgl_pages, num_async_pdu_data_sgl_pages; 26136733b39aSJayamohan Kallickal 26146733b39aSJayamohan Kallickal num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \ 26156733b39aSJayamohan Kallickal sizeof(struct sol_cqe)); 26166733b39aSJayamohan Kallickal 26176733b39aSJayamohan Kallickal phba->params.hwi_ws_sz = sizeof(struct hwi_controller); 26186733b39aSJayamohan Kallickal 26196733b39aSJayamohan Kallickal phba->mem_req[ISCSI_MEM_GLOBAL_HEADER] = 2 * 26206733b39aSJayamohan Kallickal BE_ISCSI_PDU_HEADER_SIZE; 26216733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ADDN_CONTEXT] = 26226733b39aSJayamohan Kallickal sizeof(struct hwi_context_memory); 26236733b39aSJayamohan Kallickal 26246733b39aSJayamohan Kallickal 26256733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_WRB] = sizeof(struct iscsi_wrb) 26266733b39aSJayamohan Kallickal * (phba->params.wrbs_per_cxn) 26276733b39aSJayamohan Kallickal * phba->params.cxns_per_ctrl; 26286733b39aSJayamohan Kallickal wrb_sz_per_cxn = sizeof(struct wrb_handle) * 26296733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn); 26306733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_WRBH] = roundup_pow_of_two((wrb_sz_per_cxn) * 26316733b39aSJayamohan Kallickal phba->params.cxns_per_ctrl); 26326733b39aSJayamohan Kallickal 26336733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_SGLH] = sizeof(struct sgl_handle) * 26346733b39aSJayamohan Kallickal phba->params.icds_per_ctrl; 26356733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_SGE] = sizeof(struct iscsi_sge) * 26366733b39aSJayamohan Kallickal phba->params.num_sge_per_io * phba->params.icds_per_ctrl; 26378a86e833SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 26388a86e833SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { 26396733b39aSJayamohan Kallickal 26408a86e833SJayamohan Kallickal num_async_pdu_buf_sgl_pages = 26418a86e833SJayamohan Kallickal PAGES_REQUIRED(BEISCSI_GET_CID_COUNT( 26428a86e833SJayamohan Kallickal phba, ulp_num) * 26438a86e833SJayamohan Kallickal sizeof(struct phys_addr)); 26448a86e833SJayamohan Kallickal 26458a86e833SJayamohan Kallickal num_async_pdu_buf_pages = 26468a86e833SJayamohan Kallickal PAGES_REQUIRED(BEISCSI_GET_CID_COUNT( 26478a86e833SJayamohan Kallickal phba, ulp_num) * 26488a86e833SJayamohan Kallickal phba->params.defpdu_hdr_sz); 26498a86e833SJayamohan Kallickal 26508a86e833SJayamohan Kallickal num_async_pdu_data_pages = 26518a86e833SJayamohan Kallickal PAGES_REQUIRED(BEISCSI_GET_CID_COUNT( 26528a86e833SJayamohan Kallickal phba, ulp_num) * 26538a86e833SJayamohan Kallickal phba->params.defpdu_data_sz); 26548a86e833SJayamohan Kallickal 26558a86e833SJayamohan Kallickal num_async_pdu_data_sgl_pages = 26568a86e833SJayamohan Kallickal PAGES_REQUIRED(BEISCSI_GET_CID_COUNT( 26578a86e833SJayamohan Kallickal phba, ulp_num) * 26588a86e833SJayamohan Kallickal sizeof(struct phys_addr)); 26598a86e833SJayamohan Kallickal 2660a129d92fSJayamohan Kallickal mem_descr_index = (HWI_MEM_TEMPLATE_HDR_ULP0 + 2661a129d92fSJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 2662a129d92fSJayamohan Kallickal phba->mem_req[mem_descr_index] = 2663a129d92fSJayamohan Kallickal BEISCSI_GET_CID_COUNT(phba, ulp_num) * 2664a129d92fSJayamohan Kallickal BEISCSI_TEMPLATE_HDR_PER_CXN_SIZE; 2665a129d92fSJayamohan Kallickal 26668a86e833SJayamohan Kallickal mem_descr_index = (HWI_MEM_ASYNC_HEADER_BUF_ULP0 + 26678a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 26688a86e833SJayamohan Kallickal phba->mem_req[mem_descr_index] = 26698a86e833SJayamohan Kallickal num_async_pdu_buf_pages * 26708a86e833SJayamohan Kallickal PAGE_SIZE; 26718a86e833SJayamohan Kallickal 26728a86e833SJayamohan Kallickal mem_descr_index = (HWI_MEM_ASYNC_DATA_BUF_ULP0 + 26738a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 26748a86e833SJayamohan Kallickal phba->mem_req[mem_descr_index] = 26758a86e833SJayamohan Kallickal num_async_pdu_data_pages * 26768a86e833SJayamohan Kallickal PAGE_SIZE; 26778a86e833SJayamohan Kallickal 26788a86e833SJayamohan Kallickal mem_descr_index = (HWI_MEM_ASYNC_HEADER_RING_ULP0 + 26798a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 26808a86e833SJayamohan Kallickal phba->mem_req[mem_descr_index] = 26818a86e833SJayamohan Kallickal num_async_pdu_buf_sgl_pages * 26828a86e833SJayamohan Kallickal PAGE_SIZE; 26838a86e833SJayamohan Kallickal 26848a86e833SJayamohan Kallickal mem_descr_index = (HWI_MEM_ASYNC_DATA_RING_ULP0 + 26858a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 26868a86e833SJayamohan Kallickal phba->mem_req[mem_descr_index] = 26878a86e833SJayamohan Kallickal num_async_pdu_data_sgl_pages * 26888a86e833SJayamohan Kallickal PAGE_SIZE; 26898a86e833SJayamohan Kallickal 26908a86e833SJayamohan Kallickal mem_descr_index = (HWI_MEM_ASYNC_HEADER_HANDLE_ULP0 + 26918a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 26928a86e833SJayamohan Kallickal phba->mem_req[mem_descr_index] = 26938a86e833SJayamohan Kallickal BEISCSI_GET_CID_COUNT(phba, ulp_num) * 26946733b39aSJayamohan Kallickal sizeof(struct async_pdu_handle); 26958a86e833SJayamohan Kallickal 26968a86e833SJayamohan Kallickal mem_descr_index = (HWI_MEM_ASYNC_DATA_HANDLE_ULP0 + 26978a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 26988a86e833SJayamohan Kallickal phba->mem_req[mem_descr_index] = 26998a86e833SJayamohan Kallickal BEISCSI_GET_CID_COUNT(phba, ulp_num) * 27006733b39aSJayamohan Kallickal sizeof(struct async_pdu_handle); 27018a86e833SJayamohan Kallickal 27028a86e833SJayamohan Kallickal mem_descr_index = (HWI_MEM_ASYNC_PDU_CONTEXT_ULP0 + 27038a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 27048a86e833SJayamohan Kallickal phba->mem_req[mem_descr_index] = 27056733b39aSJayamohan Kallickal sizeof(struct hwi_async_pdu_context) + 27068a86e833SJayamohan Kallickal (BEISCSI_GET_CID_COUNT(phba, ulp_num) * 27078a86e833SJayamohan Kallickal sizeof(struct hwi_async_entry)); 27088a86e833SJayamohan Kallickal } 27098a86e833SJayamohan Kallickal } 27106733b39aSJayamohan Kallickal } 27116733b39aSJayamohan Kallickal 27126733b39aSJayamohan Kallickal static int beiscsi_alloc_mem(struct beiscsi_hba *phba) 27136733b39aSJayamohan Kallickal { 27146733b39aSJayamohan Kallickal dma_addr_t bus_add; 2715a7909b39SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 2716a7909b39SJayamohan Kallickal struct be_mem_descriptor *mem_descr; 27176733b39aSJayamohan Kallickal struct mem_array *mem_arr, *mem_arr_orig; 27186733b39aSJayamohan Kallickal unsigned int i, j, alloc_size, curr_alloc_size; 27196733b39aSJayamohan Kallickal 27203ec78271SJayamohan Kallickal phba->phwi_ctrlr = kzalloc(phba->params.hwi_ws_sz, GFP_KERNEL); 27216733b39aSJayamohan Kallickal if (!phba->phwi_ctrlr) 27226733b39aSJayamohan Kallickal return -ENOMEM; 27236733b39aSJayamohan Kallickal 2724a7909b39SJayamohan Kallickal /* Allocate memory for wrb_context */ 2725a7909b39SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 2726a7909b39SJayamohan Kallickal phwi_ctrlr->wrb_context = kzalloc(sizeof(struct hwi_wrb_context) * 2727a7909b39SJayamohan Kallickal phba->params.cxns_per_ctrl, 2728a7909b39SJayamohan Kallickal GFP_KERNEL); 2729a7909b39SJayamohan Kallickal if (!phwi_ctrlr->wrb_context) 2730a7909b39SJayamohan Kallickal return -ENOMEM; 2731a7909b39SJayamohan Kallickal 27326733b39aSJayamohan Kallickal phba->init_mem = kcalloc(SE_MEM_MAX, sizeof(*mem_descr), 27336733b39aSJayamohan Kallickal GFP_KERNEL); 27346733b39aSJayamohan Kallickal if (!phba->init_mem) { 2735a7909b39SJayamohan Kallickal kfree(phwi_ctrlr->wrb_context); 27366733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 27376733b39aSJayamohan Kallickal return -ENOMEM; 27386733b39aSJayamohan Kallickal } 27396733b39aSJayamohan Kallickal 27406733b39aSJayamohan Kallickal mem_arr_orig = kmalloc(sizeof(*mem_arr_orig) * BEISCSI_MAX_FRAGS_INIT, 27416733b39aSJayamohan Kallickal GFP_KERNEL); 27426733b39aSJayamohan Kallickal if (!mem_arr_orig) { 27436733b39aSJayamohan Kallickal kfree(phba->init_mem); 2744a7909b39SJayamohan Kallickal kfree(phwi_ctrlr->wrb_context); 27456733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 27466733b39aSJayamohan Kallickal return -ENOMEM; 27476733b39aSJayamohan Kallickal } 27486733b39aSJayamohan Kallickal 27496733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 27506733b39aSJayamohan Kallickal for (i = 0; i < SE_MEM_MAX; i++) { 27518a86e833SJayamohan Kallickal if (!phba->mem_req[i]) { 27528a86e833SJayamohan Kallickal mem_descr->mem_array = NULL; 27538a86e833SJayamohan Kallickal mem_descr++; 27548a86e833SJayamohan Kallickal continue; 27558a86e833SJayamohan Kallickal } 27568a86e833SJayamohan Kallickal 27576733b39aSJayamohan Kallickal j = 0; 27586733b39aSJayamohan Kallickal mem_arr = mem_arr_orig; 27596733b39aSJayamohan Kallickal alloc_size = phba->mem_req[i]; 27606733b39aSJayamohan Kallickal memset(mem_arr, 0, sizeof(struct mem_array) * 27616733b39aSJayamohan Kallickal BEISCSI_MAX_FRAGS_INIT); 27626733b39aSJayamohan Kallickal curr_alloc_size = min(be_max_phys_size * 1024, alloc_size); 27636733b39aSJayamohan Kallickal do { 27646733b39aSJayamohan Kallickal mem_arr->virtual_address = pci_alloc_consistent( 27656733b39aSJayamohan Kallickal phba->pcidev, 27666733b39aSJayamohan Kallickal curr_alloc_size, 27676733b39aSJayamohan Kallickal &bus_add); 27686733b39aSJayamohan Kallickal if (!mem_arr->virtual_address) { 27696733b39aSJayamohan Kallickal if (curr_alloc_size <= BE_MIN_MEM_SIZE) 27706733b39aSJayamohan Kallickal goto free_mem; 27716733b39aSJayamohan Kallickal if (curr_alloc_size - 27726733b39aSJayamohan Kallickal rounddown_pow_of_two(curr_alloc_size)) 27736733b39aSJayamohan Kallickal curr_alloc_size = rounddown_pow_of_two 27746733b39aSJayamohan Kallickal (curr_alloc_size); 27756733b39aSJayamohan Kallickal else 27766733b39aSJayamohan Kallickal curr_alloc_size = curr_alloc_size / 2; 27776733b39aSJayamohan Kallickal } else { 27786733b39aSJayamohan Kallickal mem_arr->bus_address.u. 27796733b39aSJayamohan Kallickal a64.address = (__u64) bus_add; 27806733b39aSJayamohan Kallickal mem_arr->size = curr_alloc_size; 27816733b39aSJayamohan Kallickal alloc_size -= curr_alloc_size; 27826733b39aSJayamohan Kallickal curr_alloc_size = min(be_max_phys_size * 27836733b39aSJayamohan Kallickal 1024, alloc_size); 27846733b39aSJayamohan Kallickal j++; 27856733b39aSJayamohan Kallickal mem_arr++; 27866733b39aSJayamohan Kallickal } 27876733b39aSJayamohan Kallickal } while (alloc_size); 27886733b39aSJayamohan Kallickal mem_descr->num_elements = j; 27896733b39aSJayamohan Kallickal mem_descr->size_in_bytes = phba->mem_req[i]; 27906733b39aSJayamohan Kallickal mem_descr->mem_array = kmalloc(sizeof(*mem_arr) * j, 27916733b39aSJayamohan Kallickal GFP_KERNEL); 27926733b39aSJayamohan Kallickal if (!mem_descr->mem_array) 27936733b39aSJayamohan Kallickal goto free_mem; 27946733b39aSJayamohan Kallickal 27956733b39aSJayamohan Kallickal memcpy(mem_descr->mem_array, mem_arr_orig, 27966733b39aSJayamohan Kallickal sizeof(struct mem_array) * j); 27976733b39aSJayamohan Kallickal mem_descr++; 27986733b39aSJayamohan Kallickal } 27996733b39aSJayamohan Kallickal kfree(mem_arr_orig); 28006733b39aSJayamohan Kallickal return 0; 28016733b39aSJayamohan Kallickal free_mem: 28026733b39aSJayamohan Kallickal mem_descr->num_elements = j; 28036733b39aSJayamohan Kallickal while ((i) || (j)) { 28046733b39aSJayamohan Kallickal for (j = mem_descr->num_elements; j > 0; j--) { 28056733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 28066733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].size, 28076733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1]. 28086733b39aSJayamohan Kallickal virtual_address, 2809457ff3b7SJayamohan Kallickal (unsigned long)mem_descr-> 2810457ff3b7SJayamohan Kallickal mem_array[j - 1]. 28116733b39aSJayamohan Kallickal bus_address.u.a64.address); 28126733b39aSJayamohan Kallickal } 28136733b39aSJayamohan Kallickal if (i) { 28146733b39aSJayamohan Kallickal i--; 28156733b39aSJayamohan Kallickal kfree(mem_descr->mem_array); 28166733b39aSJayamohan Kallickal mem_descr--; 28176733b39aSJayamohan Kallickal } 28186733b39aSJayamohan Kallickal } 28196733b39aSJayamohan Kallickal kfree(mem_arr_orig); 28206733b39aSJayamohan Kallickal kfree(phba->init_mem); 2821a7909b39SJayamohan Kallickal kfree(phba->phwi_ctrlr->wrb_context); 28226733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 28236733b39aSJayamohan Kallickal return -ENOMEM; 28246733b39aSJayamohan Kallickal } 28256733b39aSJayamohan Kallickal 28266733b39aSJayamohan Kallickal static int beiscsi_get_memory(struct beiscsi_hba *phba) 28276733b39aSJayamohan Kallickal { 28286733b39aSJayamohan Kallickal beiscsi_find_mem_req(phba); 28296733b39aSJayamohan Kallickal return beiscsi_alloc_mem(phba); 28306733b39aSJayamohan Kallickal } 28316733b39aSJayamohan Kallickal 28326733b39aSJayamohan Kallickal static void iscsi_init_global_templates(struct beiscsi_hba *phba) 28336733b39aSJayamohan Kallickal { 28346733b39aSJayamohan Kallickal struct pdu_data_out *pdata_out; 28356733b39aSJayamohan Kallickal struct pdu_nop_out *pnop_out; 28366733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 28376733b39aSJayamohan Kallickal 28386733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 28396733b39aSJayamohan Kallickal mem_descr += ISCSI_MEM_GLOBAL_HEADER; 28406733b39aSJayamohan Kallickal pdata_out = 28416733b39aSJayamohan Kallickal (struct pdu_data_out *)mem_descr->mem_array[0].virtual_address; 28426733b39aSJayamohan Kallickal memset(pdata_out, 0, BE_ISCSI_PDU_HEADER_SIZE); 28436733b39aSJayamohan Kallickal 28446733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, opcode, pdata_out, 28456733b39aSJayamohan Kallickal IIOC_SCSI_DATA); 28466733b39aSJayamohan Kallickal 28476733b39aSJayamohan Kallickal pnop_out = 28486733b39aSJayamohan Kallickal (struct pdu_nop_out *)((unsigned char *)mem_descr->mem_array[0]. 28496733b39aSJayamohan Kallickal virtual_address + BE_ISCSI_PDU_HEADER_SIZE); 28506733b39aSJayamohan Kallickal 28516733b39aSJayamohan Kallickal memset(pnop_out, 0, BE_ISCSI_PDU_HEADER_SIZE); 28526733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, ttt, pnop_out, 0xFFFFFFFF); 28536733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, f_bit, pnop_out, 1); 28546733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, i_bit, pnop_out, 0); 28556733b39aSJayamohan Kallickal } 28566733b39aSJayamohan Kallickal 28573ec78271SJayamohan Kallickal static int beiscsi_init_wrb_handle(struct beiscsi_hba *phba) 28586733b39aSJayamohan Kallickal { 28596733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr_wrbh, *mem_descr_wrb; 2860a7909b39SJayamohan Kallickal struct hwi_context_memory *phwi_ctxt; 28613ec78271SJayamohan Kallickal struct wrb_handle *pwrb_handle = NULL; 28626733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 28636733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 28643ec78271SJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 28653ec78271SJayamohan Kallickal unsigned int num_cxn_wrbh = 0; 28663ec78271SJayamohan Kallickal unsigned int num_cxn_wrb = 0, j, idx = 0, index; 28676733b39aSJayamohan Kallickal 28686733b39aSJayamohan Kallickal mem_descr_wrbh = phba->init_mem; 28696733b39aSJayamohan Kallickal mem_descr_wrbh += HWI_MEM_WRBH; 28706733b39aSJayamohan Kallickal 28716733b39aSJayamohan Kallickal mem_descr_wrb = phba->init_mem; 28726733b39aSJayamohan Kallickal mem_descr_wrb += HWI_MEM_WRB; 28736733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 28746733b39aSJayamohan Kallickal 2875a7909b39SJayamohan Kallickal /* Allocate memory for WRBQ */ 2876a7909b39SJayamohan Kallickal phwi_ctxt = phwi_ctrlr->phwi_ctxt; 2877a7909b39SJayamohan Kallickal phwi_ctxt->be_wrbq = kzalloc(sizeof(struct be_queue_info) * 2878843ae752SJayamohan Kallickal phba->params.cxns_per_ctrl, 2879a7909b39SJayamohan Kallickal GFP_KERNEL); 2880a7909b39SJayamohan Kallickal if (!phwi_ctxt->be_wrbq) { 2881a7909b39SJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 2882a7909b39SJayamohan Kallickal "BM_%d : WRBQ Mem Alloc Failed\n"); 2883a7909b39SJayamohan Kallickal return -ENOMEM; 2884a7909b39SJayamohan Kallickal } 2885a7909b39SJayamohan Kallickal 2886a7909b39SJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl; index++) { 28876733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 28886733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base = 28896733b39aSJayamohan Kallickal kzalloc(sizeof(struct wrb_handle *) * 28906733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn, GFP_KERNEL); 28913ec78271SJayamohan Kallickal if (!pwrb_context->pwrb_handle_base) { 289299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 289399bc5d55SJohn Soni Jose "BM_%d : Mem Alloc Failed. Failing to load\n"); 28943ec78271SJayamohan Kallickal goto init_wrb_hndl_failed; 28953ec78271SJayamohan Kallickal } 28966733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd = 28976733b39aSJayamohan Kallickal kzalloc(sizeof(struct wrb_handle *) * 28986733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn, GFP_KERNEL); 28993ec78271SJayamohan Kallickal if (!pwrb_context->pwrb_handle_basestd) { 290099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 290199bc5d55SJohn Soni Jose "BM_%d : Mem Alloc Failed. Failing to load\n"); 29023ec78271SJayamohan Kallickal goto init_wrb_hndl_failed; 29036733b39aSJayamohan Kallickal } 29043ec78271SJayamohan Kallickal if (!num_cxn_wrbh) { 29056733b39aSJayamohan Kallickal pwrb_handle = 29066733b39aSJayamohan Kallickal mem_descr_wrbh->mem_array[idx].virtual_address; 29073ec78271SJayamohan Kallickal num_cxn_wrbh = ((mem_descr_wrbh->mem_array[idx].size) / 29086733b39aSJayamohan Kallickal ((sizeof(struct wrb_handle)) * 29096733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn)); 29103ec78271SJayamohan Kallickal idx++; 29113ec78271SJayamohan Kallickal } 29126733b39aSJayamohan Kallickal pwrb_context->alloc_index = 0; 29133ec78271SJayamohan Kallickal pwrb_context->wrb_handles_available = 0; 29143ec78271SJayamohan Kallickal pwrb_context->free_index = 0; 29153ec78271SJayamohan Kallickal 29163ec78271SJayamohan Kallickal if (num_cxn_wrbh) { 29176733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 29186733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base[j] = pwrb_handle; 29196733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd[j] = 29206733b39aSJayamohan Kallickal pwrb_handle; 29216733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available++; 2922bfead3b2SJayamohan Kallickal pwrb_handle->wrb_index = j; 29236733b39aSJayamohan Kallickal pwrb_handle++; 29246733b39aSJayamohan Kallickal } 29256733b39aSJayamohan Kallickal num_cxn_wrbh--; 29266733b39aSJayamohan Kallickal } 2927f64d92e6SJitendra Bhivare spin_lock_init(&pwrb_context->wrb_lock); 29286733b39aSJayamohan Kallickal } 29296733b39aSJayamohan Kallickal idx = 0; 2930a7909b39SJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl; index++) { 29313ec78271SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 29323ec78271SJayamohan Kallickal if (!num_cxn_wrb) { 29336733b39aSJayamohan Kallickal pwrb = mem_descr_wrb->mem_array[idx].virtual_address; 29347c56533cSJayamohan Kallickal num_cxn_wrb = (mem_descr_wrb->mem_array[idx].size) / 29357c56533cSJayamohan Kallickal ((sizeof(struct iscsi_wrb) * 29367c56533cSJayamohan Kallickal phba->params.wrbs_per_cxn)); 29373ec78271SJayamohan Kallickal idx++; 29383ec78271SJayamohan Kallickal } 29393ec78271SJayamohan Kallickal 29406733b39aSJayamohan Kallickal if (num_cxn_wrb) { 29416733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 29426733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[j]; 29436733b39aSJayamohan Kallickal pwrb_handle->pwrb = pwrb; 29446733b39aSJayamohan Kallickal pwrb++; 29456733b39aSJayamohan Kallickal } 29466733b39aSJayamohan Kallickal num_cxn_wrb--; 29476733b39aSJayamohan Kallickal } 29486733b39aSJayamohan Kallickal } 29493ec78271SJayamohan Kallickal return 0; 29503ec78271SJayamohan Kallickal init_wrb_hndl_failed: 29513ec78271SJayamohan Kallickal for (j = index; j > 0; j--) { 29523ec78271SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[j]; 29533ec78271SJayamohan Kallickal kfree(pwrb_context->pwrb_handle_base); 29543ec78271SJayamohan Kallickal kfree(pwrb_context->pwrb_handle_basestd); 29553ec78271SJayamohan Kallickal } 29563ec78271SJayamohan Kallickal return -ENOMEM; 29576733b39aSJayamohan Kallickal } 29586733b39aSJayamohan Kallickal 2959a7909b39SJayamohan Kallickal static int hwi_init_async_pdu_ctx(struct beiscsi_hba *phba) 29606733b39aSJayamohan Kallickal { 29618a86e833SJayamohan Kallickal uint8_t ulp_num; 29626733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 29636733b39aSJayamohan Kallickal struct hba_parameters *p = &phba->params; 29646733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 29656733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_header_h, *pasync_data_h; 2966dc63aac6SJayamohan Kallickal unsigned int index, idx, num_per_mem, num_async_data; 29676733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 29686733b39aSJayamohan Kallickal 29698a86e833SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 29708a86e833SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { 29718a86e833SJayamohan Kallickal 29726733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 29738a86e833SJayamohan Kallickal mem_descr += (HWI_MEM_ASYNC_PDU_CONTEXT_ULP0 + 29748a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 29756733b39aSJayamohan Kallickal 29766733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 29778a86e833SJayamohan Kallickal phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num] = 29788a86e833SJayamohan Kallickal (struct hwi_async_pdu_context *) 29796733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 29808a86e833SJayamohan Kallickal 29818a86e833SJayamohan Kallickal pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num]; 29826733b39aSJayamohan Kallickal memset(pasync_ctx, 0, sizeof(*pasync_ctx)); 29836733b39aSJayamohan Kallickal 29848a86e833SJayamohan Kallickal pasync_ctx->async_entry = 29858a86e833SJayamohan Kallickal (struct hwi_async_entry *) 29868a86e833SJayamohan Kallickal ((long unsigned int)pasync_ctx + 29878a86e833SJayamohan Kallickal sizeof(struct hwi_async_pdu_context)); 2988a7909b39SJayamohan Kallickal 29898a86e833SJayamohan Kallickal pasync_ctx->num_entries = BEISCSI_GET_CID_COUNT(phba, 29908a86e833SJayamohan Kallickal ulp_num); 2991dc63aac6SJayamohan Kallickal pasync_ctx->buffer_size = p->defpdu_hdr_sz; 29926733b39aSJayamohan Kallickal 29936733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 29948a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_BUF_ULP0 + 29958a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 29966733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 299799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 299899bc5d55SJohn Soni Jose "BM_%d : hwi_init_async_pdu_ctx" 29998a86e833SJayamohan Kallickal " HWI_MEM_ASYNC_HEADER_BUF_ULP%d va=%p\n", 30008a86e833SJayamohan Kallickal ulp_num, 30018a86e833SJayamohan Kallickal mem_descr->mem_array[0]. 30028a86e833SJayamohan Kallickal virtual_address); 30036733b39aSJayamohan Kallickal } else 30048a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 30058a86e833SJayamohan Kallickal BEISCSI_LOG_INIT, 30068a86e833SJayamohan Kallickal "BM_%d : No Virtual address for ULP : %d\n", 30078a86e833SJayamohan Kallickal ulp_num); 30086733b39aSJayamohan Kallickal 30096733b39aSJayamohan Kallickal pasync_ctx->async_header.va_base = 30106733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 30116733b39aSJayamohan Kallickal 30126733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address = 30138a86e833SJayamohan Kallickal mem_descr->mem_array[0]. 30148a86e833SJayamohan Kallickal bus_address.u.a64.address; 30156733b39aSJayamohan Kallickal 30166733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 30178a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_RING_ULP0 + 30188a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 30196733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 302099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 302199bc5d55SJohn Soni Jose "BM_%d : hwi_init_async_pdu_ctx" 30228a86e833SJayamohan Kallickal " HWI_MEM_ASYNC_HEADER_RING_ULP%d va=%p\n", 30238a86e833SJayamohan Kallickal ulp_num, 30248a86e833SJayamohan Kallickal mem_descr->mem_array[0]. 30258a86e833SJayamohan Kallickal virtual_address); 30266733b39aSJayamohan Kallickal } else 30278a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 30288a86e833SJayamohan Kallickal BEISCSI_LOG_INIT, 30298a86e833SJayamohan Kallickal "BM_%d : No Virtual address for ULP : %d\n", 30308a86e833SJayamohan Kallickal ulp_num); 303199bc5d55SJohn Soni Jose 30326733b39aSJayamohan Kallickal pasync_ctx->async_header.ring_base = 30336733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 30346733b39aSJayamohan Kallickal 30356733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 30368a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE_ULP0 + 30378a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 30386733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 303999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 304099bc5d55SJohn Soni Jose "BM_%d : hwi_init_async_pdu_ctx" 30418a86e833SJayamohan Kallickal " HWI_MEM_ASYNC_HEADER_HANDLE_ULP%d va=%p\n", 30428a86e833SJayamohan Kallickal ulp_num, 30438a86e833SJayamohan Kallickal mem_descr->mem_array[0]. 30448a86e833SJayamohan Kallickal virtual_address); 30456733b39aSJayamohan Kallickal } else 30468a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 30478a86e833SJayamohan Kallickal BEISCSI_LOG_INIT, 30488a86e833SJayamohan Kallickal "BM_%d : No Virtual address for ULP : %d\n", 30498a86e833SJayamohan Kallickal ulp_num); 30506733b39aSJayamohan Kallickal 30516733b39aSJayamohan Kallickal pasync_ctx->async_header.handle_base = 30526733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 30536733b39aSJayamohan Kallickal pasync_ctx->async_header.writables = 0; 30546733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_header.free_list); 30556733b39aSJayamohan Kallickal 30566733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 30578a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_RING_ULP0 + 30588a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 30596733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 306099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 306199bc5d55SJohn Soni Jose "BM_%d : hwi_init_async_pdu_ctx" 30628a86e833SJayamohan Kallickal " HWI_MEM_ASYNC_DATA_RING_ULP%d va=%p\n", 30638a86e833SJayamohan Kallickal ulp_num, 30648a86e833SJayamohan Kallickal mem_descr->mem_array[0]. 30658a86e833SJayamohan Kallickal virtual_address); 30666733b39aSJayamohan Kallickal } else 30678a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 30688a86e833SJayamohan Kallickal BEISCSI_LOG_INIT, 30698a86e833SJayamohan Kallickal "BM_%d : No Virtual address for ULP : %d\n", 30708a86e833SJayamohan Kallickal ulp_num); 30716733b39aSJayamohan Kallickal 30726733b39aSJayamohan Kallickal pasync_ctx->async_data.ring_base = 30736733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 30746733b39aSJayamohan Kallickal 30756733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 30768a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_HANDLE_ULP0 + 30778a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 30786733b39aSJayamohan Kallickal if (!mem_descr->mem_array[0].virtual_address) 30798a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 30808a86e833SJayamohan Kallickal BEISCSI_LOG_INIT, 30818a86e833SJayamohan Kallickal "BM_%d : No Virtual address for ULP : %d\n", 30828a86e833SJayamohan Kallickal ulp_num); 30836733b39aSJayamohan Kallickal 30846733b39aSJayamohan Kallickal pasync_ctx->async_data.handle_base = 30856733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 30866733b39aSJayamohan Kallickal pasync_ctx->async_data.writables = 0; 30876733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_data.free_list); 30886733b39aSJayamohan Kallickal 30896733b39aSJayamohan Kallickal pasync_header_h = 30908a86e833SJayamohan Kallickal (struct async_pdu_handle *) 30918a86e833SJayamohan Kallickal pasync_ctx->async_header.handle_base; 30926733b39aSJayamohan Kallickal pasync_data_h = 30938a86e833SJayamohan Kallickal (struct async_pdu_handle *) 30948a86e833SJayamohan Kallickal pasync_ctx->async_data.handle_base; 30956733b39aSJayamohan Kallickal 3096dc63aac6SJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 30978a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_BUF_ULP0 + 30988a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 3099dc63aac6SJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 310099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 310199bc5d55SJohn Soni Jose "BM_%d : hwi_init_async_pdu_ctx" 31028a86e833SJayamohan Kallickal " HWI_MEM_ASYNC_DATA_BUF_ULP%d va=%p\n", 31038a86e833SJayamohan Kallickal ulp_num, 31048a86e833SJayamohan Kallickal mem_descr->mem_array[0]. 31058a86e833SJayamohan Kallickal virtual_address); 3106dc63aac6SJayamohan Kallickal } else 31078a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 31088a86e833SJayamohan Kallickal BEISCSI_LOG_INIT, 31098a86e833SJayamohan Kallickal "BM_%d : No Virtual address for ULP : %d\n", 31108a86e833SJayamohan Kallickal ulp_num); 311199bc5d55SJohn Soni Jose 3112dc63aac6SJayamohan Kallickal idx = 0; 3113dc63aac6SJayamohan Kallickal pasync_ctx->async_data.va_base = 3114dc63aac6SJayamohan Kallickal mem_descr->mem_array[idx].virtual_address; 3115dc63aac6SJayamohan Kallickal pasync_ctx->async_data.pa_base.u.a64.address = 31168a86e833SJayamohan Kallickal mem_descr->mem_array[idx]. 31178a86e833SJayamohan Kallickal bus_address.u.a64.address; 3118dc63aac6SJayamohan Kallickal 3119dc63aac6SJayamohan Kallickal num_async_data = ((mem_descr->mem_array[idx].size) / 3120dc63aac6SJayamohan Kallickal phba->params.defpdu_data_sz); 3121dc63aac6SJayamohan Kallickal num_per_mem = 0; 3122dc63aac6SJayamohan Kallickal 31238a86e833SJayamohan Kallickal for (index = 0; index < BEISCSI_GET_CID_COUNT 31248a86e833SJayamohan Kallickal (phba, ulp_num); index++) { 31256733b39aSJayamohan Kallickal pasync_header_h->cri = -1; 31266733b39aSJayamohan Kallickal pasync_header_h->index = (char)index; 31276733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_header_h->link); 31286733b39aSJayamohan Kallickal pasync_header_h->pbuffer = 31296733b39aSJayamohan Kallickal (void *)((unsigned long) 31308a86e833SJayamohan Kallickal (pasync_ctx-> 31318a86e833SJayamohan Kallickal async_header.va_base) + 31326733b39aSJayamohan Kallickal (p->defpdu_hdr_sz * index)); 31336733b39aSJayamohan Kallickal 31346733b39aSJayamohan Kallickal pasync_header_h->pa.u.a64.address = 31358a86e833SJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64. 31368a86e833SJayamohan Kallickal address + (p->defpdu_hdr_sz * index); 31376733b39aSJayamohan Kallickal 31386733b39aSJayamohan Kallickal list_add_tail(&pasync_header_h->link, 31398a86e833SJayamohan Kallickal &pasync_ctx->async_header. 31408a86e833SJayamohan Kallickal free_list); 31416733b39aSJayamohan Kallickal pasync_header_h++; 31426733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries++; 31436733b39aSJayamohan Kallickal pasync_ctx->async_header.writables++; 31446733b39aSJayamohan Kallickal 31458a86e833SJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index]. 31468a86e833SJayamohan Kallickal wait_queue.list); 31476733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index]. 31486733b39aSJayamohan Kallickal header_busy_list); 31496733b39aSJayamohan Kallickal pasync_data_h->cri = -1; 31506733b39aSJayamohan Kallickal pasync_data_h->index = (char)index; 31516733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_data_h->link); 3152dc63aac6SJayamohan Kallickal 3153dc63aac6SJayamohan Kallickal if (!num_async_data) { 3154dc63aac6SJayamohan Kallickal num_per_mem = 0; 3155dc63aac6SJayamohan Kallickal idx++; 3156dc63aac6SJayamohan Kallickal pasync_ctx->async_data.va_base = 31578a86e833SJayamohan Kallickal mem_descr->mem_array[idx]. 31588a86e833SJayamohan Kallickal virtual_address; 31598a86e833SJayamohan Kallickal pasync_ctx->async_data.pa_base.u. 31608a86e833SJayamohan Kallickal a64.address = 3161dc63aac6SJayamohan Kallickal mem_descr->mem_array[idx]. 3162dc63aac6SJayamohan Kallickal bus_address.u.a64.address; 31638a86e833SJayamohan Kallickal num_async_data = 31648a86e833SJayamohan Kallickal ((mem_descr->mem_array[idx]. 31658a86e833SJayamohan Kallickal size) / 3166dc63aac6SJayamohan Kallickal phba->params.defpdu_data_sz); 3167dc63aac6SJayamohan Kallickal } 31686733b39aSJayamohan Kallickal pasync_data_h->pbuffer = 31696733b39aSJayamohan Kallickal (void *)((unsigned long) 31706733b39aSJayamohan Kallickal (pasync_ctx->async_data.va_base) + 3171dc63aac6SJayamohan Kallickal (p->defpdu_data_sz * num_per_mem)); 31726733b39aSJayamohan Kallickal 31736733b39aSJayamohan Kallickal pasync_data_h->pa.u.a64.address = 31748a86e833SJayamohan Kallickal pasync_ctx->async_data.pa_base.u.a64. 31758a86e833SJayamohan Kallickal address + (p->defpdu_data_sz * 31768a86e833SJayamohan Kallickal num_per_mem); 3177dc63aac6SJayamohan Kallickal num_per_mem++; 3178dc63aac6SJayamohan Kallickal num_async_data--; 31796733b39aSJayamohan Kallickal 31806733b39aSJayamohan Kallickal list_add_tail(&pasync_data_h->link, 31818a86e833SJayamohan Kallickal &pasync_ctx->async_data. 31828a86e833SJayamohan Kallickal free_list); 31836733b39aSJayamohan Kallickal pasync_data_h++; 31846733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries++; 31856733b39aSJayamohan Kallickal pasync_ctx->async_data.writables++; 31866733b39aSJayamohan Kallickal 31878a86e833SJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index]. 31888a86e833SJayamohan Kallickal data_busy_list); 31896733b39aSJayamohan Kallickal } 31906733b39aSJayamohan Kallickal 31916733b39aSJayamohan Kallickal pasync_ctx->async_header.host_write_ptr = 0; 31926733b39aSJayamohan Kallickal pasync_ctx->async_header.ep_read_ptr = -1; 31936733b39aSJayamohan Kallickal pasync_ctx->async_data.host_write_ptr = 0; 31946733b39aSJayamohan Kallickal pasync_ctx->async_data.ep_read_ptr = -1; 31958a86e833SJayamohan Kallickal } 31968a86e833SJayamohan Kallickal } 3197a7909b39SJayamohan Kallickal 3198a7909b39SJayamohan Kallickal return 0; 31996733b39aSJayamohan Kallickal } 32006733b39aSJayamohan Kallickal 32016733b39aSJayamohan Kallickal static int 32026733b39aSJayamohan Kallickal be_sgl_create_contiguous(void *virtual_address, 32036733b39aSJayamohan Kallickal u64 physical_address, u32 length, 32046733b39aSJayamohan Kallickal struct be_dma_mem *sgl) 32056733b39aSJayamohan Kallickal { 32066733b39aSJayamohan Kallickal WARN_ON(!virtual_address); 32076733b39aSJayamohan Kallickal WARN_ON(!physical_address); 3208dd29dae0STim Gardner WARN_ON(!length); 32096733b39aSJayamohan Kallickal WARN_ON(!sgl); 32106733b39aSJayamohan Kallickal 32116733b39aSJayamohan Kallickal sgl->va = virtual_address; 3212457ff3b7SJayamohan Kallickal sgl->dma = (unsigned long)physical_address; 32136733b39aSJayamohan Kallickal sgl->size = length; 32146733b39aSJayamohan Kallickal 32156733b39aSJayamohan Kallickal return 0; 32166733b39aSJayamohan Kallickal } 32176733b39aSJayamohan Kallickal 32186733b39aSJayamohan Kallickal static void be_sgl_destroy_contiguous(struct be_dma_mem *sgl) 32196733b39aSJayamohan Kallickal { 32206733b39aSJayamohan Kallickal memset(sgl, 0, sizeof(*sgl)); 32216733b39aSJayamohan Kallickal } 32226733b39aSJayamohan Kallickal 32236733b39aSJayamohan Kallickal static void 32246733b39aSJayamohan Kallickal hwi_build_be_sgl_arr(struct beiscsi_hba *phba, 32256733b39aSJayamohan Kallickal struct mem_array *pmem, struct be_dma_mem *sgl) 32266733b39aSJayamohan Kallickal { 32276733b39aSJayamohan Kallickal if (sgl->va) 32286733b39aSJayamohan Kallickal be_sgl_destroy_contiguous(sgl); 32296733b39aSJayamohan Kallickal 32306733b39aSJayamohan Kallickal be_sgl_create_contiguous(pmem->virtual_address, 32316733b39aSJayamohan Kallickal pmem->bus_address.u.a64.address, 32326733b39aSJayamohan Kallickal pmem->size, sgl); 32336733b39aSJayamohan Kallickal } 32346733b39aSJayamohan Kallickal 32356733b39aSJayamohan Kallickal static void 32366733b39aSJayamohan Kallickal hwi_build_be_sgl_by_offset(struct beiscsi_hba *phba, 32376733b39aSJayamohan Kallickal struct mem_array *pmem, struct be_dma_mem *sgl) 32386733b39aSJayamohan Kallickal { 32396733b39aSJayamohan Kallickal if (sgl->va) 32406733b39aSJayamohan Kallickal be_sgl_destroy_contiguous(sgl); 32416733b39aSJayamohan Kallickal 32426733b39aSJayamohan Kallickal be_sgl_create_contiguous((unsigned char *)pmem->virtual_address, 32436733b39aSJayamohan Kallickal pmem->bus_address.u.a64.address, 32446733b39aSJayamohan Kallickal pmem->size, sgl); 32456733b39aSJayamohan Kallickal } 32466733b39aSJayamohan Kallickal 32476733b39aSJayamohan Kallickal static int be_fill_queue(struct be_queue_info *q, 32486733b39aSJayamohan Kallickal u16 len, u16 entry_size, void *vaddress) 32496733b39aSJayamohan Kallickal { 32506733b39aSJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 32516733b39aSJayamohan Kallickal 32526733b39aSJayamohan Kallickal memset(q, 0, sizeof(*q)); 32536733b39aSJayamohan Kallickal q->len = len; 32546733b39aSJayamohan Kallickal q->entry_size = entry_size; 32556733b39aSJayamohan Kallickal mem->size = len * entry_size; 32566733b39aSJayamohan Kallickal mem->va = vaddress; 32576733b39aSJayamohan Kallickal if (!mem->va) 32586733b39aSJayamohan Kallickal return -ENOMEM; 32596733b39aSJayamohan Kallickal memset(mem->va, 0, mem->size); 32606733b39aSJayamohan Kallickal return 0; 32616733b39aSJayamohan Kallickal } 32626733b39aSJayamohan Kallickal 3263bfead3b2SJayamohan Kallickal static int beiscsi_create_eqs(struct beiscsi_hba *phba, 32646733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context) 32656733b39aSJayamohan Kallickal { 3266bfead3b2SJayamohan Kallickal unsigned int i, num_eq_pages; 326799bc5d55SJohn Soni Jose int ret = 0, eq_for_mcc; 32686733b39aSJayamohan Kallickal struct be_queue_info *eq; 32696733b39aSJayamohan Kallickal struct be_dma_mem *mem; 32706733b39aSJayamohan Kallickal void *eq_vaddress; 3271bfead3b2SJayamohan Kallickal dma_addr_t paddr; 32726733b39aSJayamohan Kallickal 3273bfead3b2SJayamohan Kallickal num_eq_pages = PAGES_REQUIRED(phba->params.num_eq_entries * \ 3274bfead3b2SJayamohan Kallickal sizeof(struct be_eq_entry)); 3275bfead3b2SJayamohan Kallickal 3276bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 3277bfead3b2SJayamohan Kallickal eq_for_mcc = 1; 3278bfead3b2SJayamohan Kallickal else 3279bfead3b2SJayamohan Kallickal eq_for_mcc = 0; 3280bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) { 3281bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 32826733b39aSJayamohan Kallickal mem = &eq->dma_mem; 3283bfead3b2SJayamohan Kallickal phwi_context->be_eq[i].phba = phba; 3284bfead3b2SJayamohan Kallickal eq_vaddress = pci_alloc_consistent(phba->pcidev, 3285bfead3b2SJayamohan Kallickal num_eq_pages * PAGE_SIZE, 3286bfead3b2SJayamohan Kallickal &paddr); 3287bfead3b2SJayamohan Kallickal if (!eq_vaddress) 3288bfead3b2SJayamohan Kallickal goto create_eq_error; 32896733b39aSJayamohan Kallickal 3290bfead3b2SJayamohan Kallickal mem->va = eq_vaddress; 32916733b39aSJayamohan Kallickal ret = be_fill_queue(eq, phba->params.num_eq_entries, 32926733b39aSJayamohan Kallickal sizeof(struct be_eq_entry), eq_vaddress); 32936733b39aSJayamohan Kallickal if (ret) { 329499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 329599bc5d55SJohn Soni Jose "BM_%d : be_fill_queue Failed for EQ\n"); 3296bfead3b2SJayamohan Kallickal goto create_eq_error; 32976733b39aSJayamohan Kallickal } 32986733b39aSJayamohan Kallickal 3299bfead3b2SJayamohan Kallickal mem->dma = paddr; 33006733b39aSJayamohan Kallickal ret = beiscsi_cmd_eq_create(&phba->ctrl, eq, 3301bfead3b2SJayamohan Kallickal phwi_context->cur_eqd); 33026733b39aSJayamohan Kallickal if (ret) { 330399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 330499bc5d55SJohn Soni Jose "BM_%d : beiscsi_cmd_eq_create" 33056733b39aSJayamohan Kallickal "Failed for EQ\n"); 3306bfead3b2SJayamohan Kallickal goto create_eq_error; 3307bfead3b2SJayamohan Kallickal } 330899bc5d55SJohn Soni Jose 330999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 331099bc5d55SJohn Soni Jose "BM_%d : eqid = %d\n", 331199bc5d55SJohn Soni Jose phwi_context->be_eq[i].q.id); 3312bfead3b2SJayamohan Kallickal } 3313bfead3b2SJayamohan Kallickal return 0; 3314bfead3b2SJayamohan Kallickal create_eq_error: 3315107dfcbaSJohn Soni Jose for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) { 3316bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 3317bfead3b2SJayamohan Kallickal mem = &eq->dma_mem; 3318bfead3b2SJayamohan Kallickal if (mem->va) 3319bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, num_eq_pages 3320bfead3b2SJayamohan Kallickal * PAGE_SIZE, 3321bfead3b2SJayamohan Kallickal mem->va, mem->dma); 3322bfead3b2SJayamohan Kallickal } 33236733b39aSJayamohan Kallickal return ret; 33246733b39aSJayamohan Kallickal } 33256733b39aSJayamohan Kallickal 3326bfead3b2SJayamohan Kallickal static int beiscsi_create_cqs(struct beiscsi_hba *phba, 33276733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context) 33286733b39aSJayamohan Kallickal { 3329bfead3b2SJayamohan Kallickal unsigned int i, num_cq_pages; 333099bc5d55SJohn Soni Jose int ret = 0; 33316733b39aSJayamohan Kallickal struct be_queue_info *cq, *eq; 33326733b39aSJayamohan Kallickal struct be_dma_mem *mem; 3333bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 33346733b39aSJayamohan Kallickal void *cq_vaddress; 3335bfead3b2SJayamohan Kallickal dma_addr_t paddr; 33366733b39aSJayamohan Kallickal 3337bfead3b2SJayamohan Kallickal num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \ 3338bfead3b2SJayamohan Kallickal sizeof(struct sol_cqe)); 3339bfead3b2SJayamohan Kallickal 3340bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 3341bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[i]; 3342bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 3343bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 3344bfead3b2SJayamohan Kallickal pbe_eq->cq = cq; 3345bfead3b2SJayamohan Kallickal pbe_eq->phba = phba; 33466733b39aSJayamohan Kallickal mem = &cq->dma_mem; 3347bfead3b2SJayamohan Kallickal cq_vaddress = pci_alloc_consistent(phba->pcidev, 3348bfead3b2SJayamohan Kallickal num_cq_pages * PAGE_SIZE, 3349bfead3b2SJayamohan Kallickal &paddr); 3350bfead3b2SJayamohan Kallickal if (!cq_vaddress) 3351bfead3b2SJayamohan Kallickal goto create_cq_error; 33527da50879SJayamohan Kallickal ret = be_fill_queue(cq, phba->params.num_cq_entries, 33536733b39aSJayamohan Kallickal sizeof(struct sol_cqe), cq_vaddress); 33546733b39aSJayamohan Kallickal if (ret) { 335599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 335699bc5d55SJohn Soni Jose "BM_%d : be_fill_queue Failed " 335799bc5d55SJohn Soni Jose "for ISCSI CQ\n"); 3358bfead3b2SJayamohan Kallickal goto create_cq_error; 33596733b39aSJayamohan Kallickal } 33606733b39aSJayamohan Kallickal 3361bfead3b2SJayamohan Kallickal mem->dma = paddr; 3362bfead3b2SJayamohan Kallickal ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false, 3363bfead3b2SJayamohan Kallickal false, 0); 33646733b39aSJayamohan Kallickal if (ret) { 336599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 336699bc5d55SJohn Soni Jose "BM_%d : beiscsi_cmd_eq_create" 3367bfead3b2SJayamohan Kallickal "Failed for ISCSI CQ\n"); 3368bfead3b2SJayamohan Kallickal goto create_cq_error; 33696733b39aSJayamohan Kallickal } 337099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 337199bc5d55SJohn Soni Jose "BM_%d : iscsi cq_id is %d for eq_id %d\n" 337299bc5d55SJohn Soni Jose "iSCSI CQ CREATED\n", cq->id, eq->id); 3373bfead3b2SJayamohan Kallickal } 33746733b39aSJayamohan Kallickal return 0; 3375bfead3b2SJayamohan Kallickal 3376bfead3b2SJayamohan Kallickal create_cq_error: 3377bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 3378bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[i]; 3379bfead3b2SJayamohan Kallickal mem = &cq->dma_mem; 3380bfead3b2SJayamohan Kallickal if (mem->va) 3381bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, num_cq_pages 3382bfead3b2SJayamohan Kallickal * PAGE_SIZE, 3383bfead3b2SJayamohan Kallickal mem->va, mem->dma); 3384bfead3b2SJayamohan Kallickal } 3385bfead3b2SJayamohan Kallickal return ret; 3386bfead3b2SJayamohan Kallickal 33876733b39aSJayamohan Kallickal } 33886733b39aSJayamohan Kallickal 33896733b39aSJayamohan Kallickal static int 33906733b39aSJayamohan Kallickal beiscsi_create_def_hdr(struct beiscsi_hba *phba, 33916733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 33926733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr, 33938a86e833SJayamohan Kallickal unsigned int def_pdu_ring_sz, uint8_t ulp_num) 33946733b39aSJayamohan Kallickal { 33956733b39aSJayamohan Kallickal unsigned int idx; 33966733b39aSJayamohan Kallickal int ret; 33976733b39aSJayamohan Kallickal struct be_queue_info *dq, *cq; 33986733b39aSJayamohan Kallickal struct be_dma_mem *mem; 33996733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 34006733b39aSJayamohan Kallickal void *dq_vaddress; 34016733b39aSJayamohan Kallickal 34026733b39aSJayamohan Kallickal idx = 0; 34038a86e833SJayamohan Kallickal dq = &phwi_context->be_def_hdrq[ulp_num]; 3404bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 34056733b39aSJayamohan Kallickal mem = &dq->dma_mem; 34066733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 34078a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_RING_ULP0 + 34088a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 34096733b39aSJayamohan Kallickal dq_vaddress = mem_descr->mem_array[idx].virtual_address; 34106733b39aSJayamohan Kallickal ret = be_fill_queue(dq, mem_descr->mem_array[0].size / 34116733b39aSJayamohan Kallickal sizeof(struct phys_addr), 34126733b39aSJayamohan Kallickal sizeof(struct phys_addr), dq_vaddress); 34136733b39aSJayamohan Kallickal if (ret) { 341499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 34158a86e833SJayamohan Kallickal "BM_%d : be_fill_queue Failed for DEF PDU HDR on ULP : %d\n", 34168a86e833SJayamohan Kallickal ulp_num); 34178a86e833SJayamohan Kallickal 34186733b39aSJayamohan Kallickal return ret; 34196733b39aSJayamohan Kallickal } 3420457ff3b7SJayamohan Kallickal mem->dma = (unsigned long)mem_descr->mem_array[idx]. 3421457ff3b7SJayamohan Kallickal bus_address.u.a64.address; 34226733b39aSJayamohan Kallickal ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dq, 34236733b39aSJayamohan Kallickal def_pdu_ring_sz, 34248a86e833SJayamohan Kallickal phba->params.defpdu_hdr_sz, 34258a86e833SJayamohan Kallickal BEISCSI_DEFQ_HDR, ulp_num); 34266733b39aSJayamohan Kallickal if (ret) { 342799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 34288a86e833SJayamohan Kallickal "BM_%d : be_cmd_create_default_pdu_queue Failed DEFHDR on ULP : %d\n", 34298a86e833SJayamohan Kallickal ulp_num); 34308a86e833SJayamohan Kallickal 34316733b39aSJayamohan Kallickal return ret; 34326733b39aSJayamohan Kallickal } 343399bc5d55SJohn Soni Jose 34348a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 34358a86e833SJayamohan Kallickal "BM_%d : iscsi hdr def pdu id for ULP : %d is %d\n", 34368a86e833SJayamohan Kallickal ulp_num, 34378a86e833SJayamohan Kallickal phwi_context->be_def_hdrq[ulp_num].id); 34388a86e833SJayamohan Kallickal hwi_post_async_buffers(phba, BEISCSI_DEFQ_HDR, ulp_num); 34396733b39aSJayamohan Kallickal return 0; 34406733b39aSJayamohan Kallickal } 34416733b39aSJayamohan Kallickal 34426733b39aSJayamohan Kallickal static int 34436733b39aSJayamohan Kallickal beiscsi_create_def_data(struct beiscsi_hba *phba, 34446733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 34456733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr, 34468a86e833SJayamohan Kallickal unsigned int def_pdu_ring_sz, uint8_t ulp_num) 34476733b39aSJayamohan Kallickal { 34486733b39aSJayamohan Kallickal unsigned int idx; 34496733b39aSJayamohan Kallickal int ret; 34506733b39aSJayamohan Kallickal struct be_queue_info *dataq, *cq; 34516733b39aSJayamohan Kallickal struct be_dma_mem *mem; 34526733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 34536733b39aSJayamohan Kallickal void *dq_vaddress; 34546733b39aSJayamohan Kallickal 34556733b39aSJayamohan Kallickal idx = 0; 34568a86e833SJayamohan Kallickal dataq = &phwi_context->be_def_dataq[ulp_num]; 3457bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 34586733b39aSJayamohan Kallickal mem = &dataq->dma_mem; 34596733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 34608a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_RING_ULP0 + 34618a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 34626733b39aSJayamohan Kallickal dq_vaddress = mem_descr->mem_array[idx].virtual_address; 34636733b39aSJayamohan Kallickal ret = be_fill_queue(dataq, mem_descr->mem_array[0].size / 34646733b39aSJayamohan Kallickal sizeof(struct phys_addr), 34656733b39aSJayamohan Kallickal sizeof(struct phys_addr), dq_vaddress); 34666733b39aSJayamohan Kallickal if (ret) { 346799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 34688a86e833SJayamohan Kallickal "BM_%d : be_fill_queue Failed for DEF PDU " 34698a86e833SJayamohan Kallickal "DATA on ULP : %d\n", 34708a86e833SJayamohan Kallickal ulp_num); 34718a86e833SJayamohan Kallickal 34726733b39aSJayamohan Kallickal return ret; 34736733b39aSJayamohan Kallickal } 3474457ff3b7SJayamohan Kallickal mem->dma = (unsigned long)mem_descr->mem_array[idx]. 3475457ff3b7SJayamohan Kallickal bus_address.u.a64.address; 34766733b39aSJayamohan Kallickal ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dataq, 34776733b39aSJayamohan Kallickal def_pdu_ring_sz, 34788a86e833SJayamohan Kallickal phba->params.defpdu_data_sz, 34798a86e833SJayamohan Kallickal BEISCSI_DEFQ_DATA, ulp_num); 34806733b39aSJayamohan Kallickal if (ret) { 348199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 348299bc5d55SJohn Soni Jose "BM_%d be_cmd_create_default_pdu_queue" 34838a86e833SJayamohan Kallickal " Failed for DEF PDU DATA on ULP : %d\n", 34848a86e833SJayamohan Kallickal ulp_num); 34856733b39aSJayamohan Kallickal return ret; 34866733b39aSJayamohan Kallickal } 348799bc5d55SJohn Soni Jose 348899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 34898a86e833SJayamohan Kallickal "BM_%d : iscsi def data id on ULP : %d is %d\n", 34908a86e833SJayamohan Kallickal ulp_num, 34918a86e833SJayamohan Kallickal phwi_context->be_def_dataq[ulp_num].id); 34928a86e833SJayamohan Kallickal 34938a86e833SJayamohan Kallickal hwi_post_async_buffers(phba, BEISCSI_DEFQ_DATA, ulp_num); 34948a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 34958a86e833SJayamohan Kallickal "BM_%d : DEFAULT PDU DATA RING CREATED" 34968a86e833SJayamohan Kallickal "on ULP : %d\n", ulp_num); 349799bc5d55SJohn Soni Jose 34986733b39aSJayamohan Kallickal return 0; 34996733b39aSJayamohan Kallickal } 35006733b39aSJayamohan Kallickal 350115a90fe0SJayamohan Kallickal 350215a90fe0SJayamohan Kallickal static int 350315a90fe0SJayamohan Kallickal beiscsi_post_template_hdr(struct beiscsi_hba *phba) 350415a90fe0SJayamohan Kallickal { 350515a90fe0SJayamohan Kallickal struct be_mem_descriptor *mem_descr; 350615a90fe0SJayamohan Kallickal struct mem_array *pm_arr; 350715a90fe0SJayamohan Kallickal struct be_dma_mem sgl; 3508a129d92fSJayamohan Kallickal int status, ulp_num; 350915a90fe0SJayamohan Kallickal 3510a129d92fSJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 3511a129d92fSJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { 3512a129d92fSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 3513a129d92fSJayamohan Kallickal mem_descr += HWI_MEM_TEMPLATE_HDR_ULP0 + 3514a129d92fSJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 351515a90fe0SJayamohan Kallickal pm_arr = mem_descr->mem_array; 351615a90fe0SJayamohan Kallickal 351715a90fe0SJayamohan Kallickal hwi_build_be_sgl_arr(phba, pm_arr, &sgl); 3518a129d92fSJayamohan Kallickal status = be_cmd_iscsi_post_template_hdr( 3519a129d92fSJayamohan Kallickal &phba->ctrl, &sgl); 352015a90fe0SJayamohan Kallickal 352115a90fe0SJayamohan Kallickal if (status != 0) { 352215a90fe0SJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 3523a129d92fSJayamohan Kallickal "BM_%d : Post Template HDR Failed for" 3524a129d92fSJayamohan Kallickal "ULP_%d\n", ulp_num); 352515a90fe0SJayamohan Kallickal return status; 352615a90fe0SJayamohan Kallickal } 352715a90fe0SJayamohan Kallickal 352815a90fe0SJayamohan Kallickal beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 3529a129d92fSJayamohan Kallickal "BM_%d : Template HDR Pages Posted for" 3530a129d92fSJayamohan Kallickal "ULP_%d\n", ulp_num); 3531a129d92fSJayamohan Kallickal } 3532a129d92fSJayamohan Kallickal } 353315a90fe0SJayamohan Kallickal return 0; 353415a90fe0SJayamohan Kallickal } 353515a90fe0SJayamohan Kallickal 35366733b39aSJayamohan Kallickal static int 35376733b39aSJayamohan Kallickal beiscsi_post_pages(struct beiscsi_hba *phba) 35386733b39aSJayamohan Kallickal { 35396733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 35406733b39aSJayamohan Kallickal struct mem_array *pm_arr; 35416733b39aSJayamohan Kallickal unsigned int page_offset, i; 35426733b39aSJayamohan Kallickal struct be_dma_mem sgl; 3543843ae752SJayamohan Kallickal int status, ulp_num = 0; 35446733b39aSJayamohan Kallickal 35456733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 35466733b39aSJayamohan Kallickal mem_descr += HWI_MEM_SGE; 35476733b39aSJayamohan Kallickal pm_arr = mem_descr->mem_array; 35486733b39aSJayamohan Kallickal 354990622db3SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) 355090622db3SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) 355190622db3SJayamohan Kallickal break; 355290622db3SJayamohan Kallickal 35536733b39aSJayamohan Kallickal page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io * 3554843ae752SJayamohan Kallickal phba->fw_config.iscsi_icd_start[ulp_num]) / PAGE_SIZE; 35556733b39aSJayamohan Kallickal for (i = 0; i < mem_descr->num_elements; i++) { 35566733b39aSJayamohan Kallickal hwi_build_be_sgl_arr(phba, pm_arr, &sgl); 35576733b39aSJayamohan Kallickal status = be_cmd_iscsi_post_sgl_pages(&phba->ctrl, &sgl, 35586733b39aSJayamohan Kallickal page_offset, 35596733b39aSJayamohan Kallickal (pm_arr->size / PAGE_SIZE)); 35606733b39aSJayamohan Kallickal page_offset += pm_arr->size / PAGE_SIZE; 35616733b39aSJayamohan Kallickal if (status != 0) { 356299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 356399bc5d55SJohn Soni Jose "BM_%d : post sgl failed.\n"); 35646733b39aSJayamohan Kallickal return status; 35656733b39aSJayamohan Kallickal } 35666733b39aSJayamohan Kallickal pm_arr++; 35676733b39aSJayamohan Kallickal } 356899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 356999bc5d55SJohn Soni Jose "BM_%d : POSTED PAGES\n"); 35706733b39aSJayamohan Kallickal return 0; 35716733b39aSJayamohan Kallickal } 35726733b39aSJayamohan Kallickal 3573bfead3b2SJayamohan Kallickal static void be_queue_free(struct beiscsi_hba *phba, struct be_queue_info *q) 3574bfead3b2SJayamohan Kallickal { 3575bfead3b2SJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 3576c8b25598SJayamohan Kallickal if (mem->va) { 3577bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, mem->size, 3578bfead3b2SJayamohan Kallickal mem->va, mem->dma); 3579c8b25598SJayamohan Kallickal mem->va = NULL; 3580c8b25598SJayamohan Kallickal } 3581bfead3b2SJayamohan Kallickal } 3582bfead3b2SJayamohan Kallickal 3583bfead3b2SJayamohan Kallickal static int be_queue_alloc(struct beiscsi_hba *phba, struct be_queue_info *q, 3584bfead3b2SJayamohan Kallickal u16 len, u16 entry_size) 3585bfead3b2SJayamohan Kallickal { 3586bfead3b2SJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 3587bfead3b2SJayamohan Kallickal 3588bfead3b2SJayamohan Kallickal memset(q, 0, sizeof(*q)); 3589bfead3b2SJayamohan Kallickal q->len = len; 3590bfead3b2SJayamohan Kallickal q->entry_size = entry_size; 3591bfead3b2SJayamohan Kallickal mem->size = len * entry_size; 35927c845eb5SJoe Perches mem->va = pci_zalloc_consistent(phba->pcidev, mem->size, &mem->dma); 3593bfead3b2SJayamohan Kallickal if (!mem->va) 3594d3ad2bb3SJayamohan Kallickal return -ENOMEM; 3595bfead3b2SJayamohan Kallickal return 0; 3596bfead3b2SJayamohan Kallickal } 3597bfead3b2SJayamohan Kallickal 35986733b39aSJayamohan Kallickal static int 35996733b39aSJayamohan Kallickal beiscsi_create_wrb_rings(struct beiscsi_hba *phba, 36006733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 36016733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr) 36026733b39aSJayamohan Kallickal { 36036733b39aSJayamohan Kallickal unsigned int wrb_mem_index, offset, size, num_wrb_rings; 36046733b39aSJayamohan Kallickal u64 pa_addr_lo; 36054eea99d5SJayamohan Kallickal unsigned int idx, num, i, ulp_num; 36066733b39aSJayamohan Kallickal struct mem_array *pwrb_arr; 36076733b39aSJayamohan Kallickal void *wrb_vaddr; 36086733b39aSJayamohan Kallickal struct be_dma_mem sgl; 36096733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 3610a7909b39SJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 36116733b39aSJayamohan Kallickal int status; 36124eea99d5SJayamohan Kallickal uint8_t ulp_count = 0, ulp_base_num = 0; 36134eea99d5SJayamohan Kallickal uint16_t cid_count_ulp[BEISCSI_ULP_COUNT] = { 0 }; 36146733b39aSJayamohan Kallickal 36156733b39aSJayamohan Kallickal idx = 0; 36166733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 36176733b39aSJayamohan Kallickal mem_descr += HWI_MEM_WRB; 36186733b39aSJayamohan Kallickal pwrb_arr = kmalloc(sizeof(*pwrb_arr) * phba->params.cxns_per_ctrl, 36196733b39aSJayamohan Kallickal GFP_KERNEL); 36206733b39aSJayamohan Kallickal if (!pwrb_arr) { 362199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 362299bc5d55SJohn Soni Jose "BM_%d : Memory alloc failed in create wrb ring.\n"); 36236733b39aSJayamohan Kallickal return -ENOMEM; 36246733b39aSJayamohan Kallickal } 36256733b39aSJayamohan Kallickal wrb_vaddr = mem_descr->mem_array[idx].virtual_address; 36266733b39aSJayamohan Kallickal pa_addr_lo = mem_descr->mem_array[idx].bus_address.u.a64.address; 36276733b39aSJayamohan Kallickal num_wrb_rings = mem_descr->mem_array[idx].size / 36286733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn * sizeof(struct iscsi_wrb)); 36296733b39aSJayamohan Kallickal 36306733b39aSJayamohan Kallickal for (num = 0; num < phba->params.cxns_per_ctrl; num++) { 36316733b39aSJayamohan Kallickal if (num_wrb_rings) { 36326733b39aSJayamohan Kallickal pwrb_arr[num].virtual_address = wrb_vaddr; 36336733b39aSJayamohan Kallickal pwrb_arr[num].bus_address.u.a64.address = pa_addr_lo; 36346733b39aSJayamohan Kallickal pwrb_arr[num].size = phba->params.wrbs_per_cxn * 36356733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb); 36366733b39aSJayamohan Kallickal wrb_vaddr += pwrb_arr[num].size; 36376733b39aSJayamohan Kallickal pa_addr_lo += pwrb_arr[num].size; 36386733b39aSJayamohan Kallickal num_wrb_rings--; 36396733b39aSJayamohan Kallickal } else { 36406733b39aSJayamohan Kallickal idx++; 36416733b39aSJayamohan Kallickal wrb_vaddr = mem_descr->mem_array[idx].virtual_address; 36426733b39aSJayamohan Kallickal pa_addr_lo = mem_descr->mem_array[idx].\ 36436733b39aSJayamohan Kallickal bus_address.u.a64.address; 36446733b39aSJayamohan Kallickal num_wrb_rings = mem_descr->mem_array[idx].size / 36456733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn * 36466733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb)); 36476733b39aSJayamohan Kallickal pwrb_arr[num].virtual_address = wrb_vaddr; 36486733b39aSJayamohan Kallickal pwrb_arr[num].bus_address.u.a64.address\ 36496733b39aSJayamohan Kallickal = pa_addr_lo; 36506733b39aSJayamohan Kallickal pwrb_arr[num].size = phba->params.wrbs_per_cxn * 36516733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb); 36526733b39aSJayamohan Kallickal wrb_vaddr += pwrb_arr[num].size; 36536733b39aSJayamohan Kallickal pa_addr_lo += pwrb_arr[num].size; 36546733b39aSJayamohan Kallickal num_wrb_rings--; 36556733b39aSJayamohan Kallickal } 36566733b39aSJayamohan Kallickal } 36574eea99d5SJayamohan Kallickal 36584eea99d5SJayamohan Kallickal /* Get the ULP Count */ 36594eea99d5SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) 36604eea99d5SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { 36614eea99d5SJayamohan Kallickal ulp_count++; 36624eea99d5SJayamohan Kallickal ulp_base_num = ulp_num; 36634eea99d5SJayamohan Kallickal cid_count_ulp[ulp_num] = 36644eea99d5SJayamohan Kallickal BEISCSI_GET_CID_COUNT(phba, ulp_num); 36654eea99d5SJayamohan Kallickal } 36664eea99d5SJayamohan Kallickal 36676733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 36686733b39aSJayamohan Kallickal wrb_mem_index = 0; 36696733b39aSJayamohan Kallickal offset = 0; 36706733b39aSJayamohan Kallickal size = 0; 36716733b39aSJayamohan Kallickal 36724eea99d5SJayamohan Kallickal if (ulp_count > 1) { 36734eea99d5SJayamohan Kallickal ulp_base_num = (ulp_base_num + 1) % BEISCSI_ULP_COUNT; 36744eea99d5SJayamohan Kallickal 36754eea99d5SJayamohan Kallickal if (!cid_count_ulp[ulp_base_num]) 36764eea99d5SJayamohan Kallickal ulp_base_num = (ulp_base_num + 1) % 36774eea99d5SJayamohan Kallickal BEISCSI_ULP_COUNT; 36784eea99d5SJayamohan Kallickal 36794eea99d5SJayamohan Kallickal cid_count_ulp[ulp_base_num]--; 36804eea99d5SJayamohan Kallickal } 36814eea99d5SJayamohan Kallickal 36824eea99d5SJayamohan Kallickal 36836733b39aSJayamohan Kallickal hwi_build_be_sgl_by_offset(phba, &pwrb_arr[i], &sgl); 36846733b39aSJayamohan Kallickal status = be_cmd_wrbq_create(&phba->ctrl, &sgl, 36854eea99d5SJayamohan Kallickal &phwi_context->be_wrbq[i], 36864eea99d5SJayamohan Kallickal &phwi_ctrlr->wrb_context[i], 36874eea99d5SJayamohan Kallickal ulp_base_num); 36886733b39aSJayamohan Kallickal if (status != 0) { 368999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 369099bc5d55SJohn Soni Jose "BM_%d : wrbq create failed."); 36911462b8ffSDan Carpenter kfree(pwrb_arr); 36926733b39aSJayamohan Kallickal return status; 36936733b39aSJayamohan Kallickal } 3694a7909b39SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[i]; 3695a7909b39SJayamohan Kallickal BE_SET_CID_TO_CRI(i, pwrb_context->cid); 36966733b39aSJayamohan Kallickal } 36976733b39aSJayamohan Kallickal kfree(pwrb_arr); 36986733b39aSJayamohan Kallickal return 0; 36996733b39aSJayamohan Kallickal } 37006733b39aSJayamohan Kallickal 37016733b39aSJayamohan Kallickal static void free_wrb_handles(struct beiscsi_hba *phba) 37026733b39aSJayamohan Kallickal { 37036733b39aSJayamohan Kallickal unsigned int index; 37046733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 37056733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 37066733b39aSJayamohan Kallickal 37076733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 3708a7909b39SJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl; index++) { 37096733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 37106733b39aSJayamohan Kallickal kfree(pwrb_context->pwrb_handle_base); 37116733b39aSJayamohan Kallickal kfree(pwrb_context->pwrb_handle_basestd); 37126733b39aSJayamohan Kallickal } 37136733b39aSJayamohan Kallickal } 37146733b39aSJayamohan Kallickal 3715bfead3b2SJayamohan Kallickal static void be_mcc_queues_destroy(struct beiscsi_hba *phba) 3716bfead3b2SJayamohan Kallickal { 3717bfead3b2SJayamohan Kallickal struct be_queue_info *q; 3718bfead3b2SJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 3719bfead3b2SJayamohan Kallickal 3720bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.q; 37214e2bdf7aSJohn Soni Jose if (q->created) { 3722bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_MCCQ); 3723bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 37244e2bdf7aSJohn Soni Jose } 3725bfead3b2SJayamohan Kallickal 3726bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.cq; 37274e2bdf7aSJohn Soni Jose if (q->created) { 3728bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ); 3729bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 3730bfead3b2SJayamohan Kallickal } 37314e2bdf7aSJohn Soni Jose } 3732bfead3b2SJayamohan Kallickal 37336733b39aSJayamohan Kallickal static void hwi_cleanup(struct beiscsi_hba *phba) 37346733b39aSJayamohan Kallickal { 37356733b39aSJayamohan Kallickal struct be_queue_info *q; 37366733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 37376733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 37386733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 3739a7909b39SJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 374023188167SJayamohan Kallickal int i, eq_for_mcc, ulp_num; 37416733b39aSJayamohan Kallickal 37426733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 37436733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 374415a90fe0SJayamohan Kallickal 374515a90fe0SJayamohan Kallickal be_cmd_iscsi_remove_template_hdr(ctrl); 374615a90fe0SJayamohan Kallickal 37476733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 37486733b39aSJayamohan Kallickal q = &phwi_context->be_wrbq[i]; 37496733b39aSJayamohan Kallickal if (q->created) 37506733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ); 37516733b39aSJayamohan Kallickal } 3752a7909b39SJayamohan Kallickal kfree(phwi_context->be_wrbq); 37536733b39aSJayamohan Kallickal free_wrb_handles(phba); 37546733b39aSJayamohan Kallickal 37558a86e833SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 37568a86e833SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { 37578a86e833SJayamohan Kallickal 37588a86e833SJayamohan Kallickal q = &phwi_context->be_def_hdrq[ulp_num]; 37596733b39aSJayamohan Kallickal if (q->created) 37606733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ); 37616733b39aSJayamohan Kallickal 37628a86e833SJayamohan Kallickal q = &phwi_context->be_def_dataq[ulp_num]; 37636733b39aSJayamohan Kallickal if (q->created) 37646733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ); 37656733b39aSJayamohan Kallickal 37668a86e833SJayamohan Kallickal pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num]; 37678a86e833SJayamohan Kallickal } 37688a86e833SJayamohan Kallickal } 37698a86e833SJayamohan Kallickal 37706733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL); 37716733b39aSJayamohan Kallickal 3772bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus); i++) { 3773bfead3b2SJayamohan Kallickal q = &phwi_context->be_cq[i]; 37744e2bdf7aSJohn Soni Jose if (q->created) { 37754e2bdf7aSJohn Soni Jose be_queue_free(phba, q); 37766733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ); 3777bfead3b2SJayamohan Kallickal } 37784e2bdf7aSJohn Soni Jose } 377923188167SJayamohan Kallickal 378023188167SJayamohan Kallickal be_mcc_queues_destroy(phba); 3781bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 378223188167SJayamohan Kallickal eq_for_mcc = 1; 3783bfead3b2SJayamohan Kallickal else 378423188167SJayamohan Kallickal eq_for_mcc = 0; 378523188167SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) { 3786bfead3b2SJayamohan Kallickal q = &phwi_context->be_eq[i].q; 37874e2bdf7aSJohn Soni Jose if (q->created) { 37884e2bdf7aSJohn Soni Jose be_queue_free(phba, q); 37896733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ); 37906733b39aSJayamohan Kallickal } 37914e2bdf7aSJohn Soni Jose } 37920283fbb1SJayamohan Kallickal be_cmd_fw_uninit(ctrl); 3793bfead3b2SJayamohan Kallickal } 3794bfead3b2SJayamohan Kallickal 3795bfead3b2SJayamohan Kallickal static int be_mcc_queues_create(struct beiscsi_hba *phba, 3796bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context) 3797bfead3b2SJayamohan Kallickal { 3798bfead3b2SJayamohan Kallickal struct be_queue_info *q, *cq; 3799bfead3b2SJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 3800bfead3b2SJayamohan Kallickal 3801bfead3b2SJayamohan Kallickal /* Alloc MCC compl queue */ 3802bfead3b2SJayamohan Kallickal cq = &phba->ctrl.mcc_obj.cq; 3803bfead3b2SJayamohan Kallickal if (be_queue_alloc(phba, cq, MCC_CQ_LEN, 3804bfead3b2SJayamohan Kallickal sizeof(struct be_mcc_compl))) 3805bfead3b2SJayamohan Kallickal goto err; 3806bfead3b2SJayamohan Kallickal /* Ask BE to create MCC compl queue; */ 3807bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 3808bfead3b2SJayamohan Kallickal if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq 3809bfead3b2SJayamohan Kallickal [phba->num_cpus].q, false, true, 0)) 3810bfead3b2SJayamohan Kallickal goto mcc_cq_free; 3811bfead3b2SJayamohan Kallickal } else { 3812bfead3b2SJayamohan Kallickal if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq[0].q, 3813bfead3b2SJayamohan Kallickal false, true, 0)) 3814bfead3b2SJayamohan Kallickal goto mcc_cq_free; 3815bfead3b2SJayamohan Kallickal } 3816bfead3b2SJayamohan Kallickal 3817bfead3b2SJayamohan Kallickal /* Alloc MCC queue */ 3818bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.q; 3819bfead3b2SJayamohan Kallickal if (be_queue_alloc(phba, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb))) 3820bfead3b2SJayamohan Kallickal goto mcc_cq_destroy; 3821bfead3b2SJayamohan Kallickal 3822bfead3b2SJayamohan Kallickal /* Ask BE to create MCC queue */ 382335e66019SJayamohan Kallickal if (beiscsi_cmd_mccq_create(phba, q, cq)) 3824bfead3b2SJayamohan Kallickal goto mcc_q_free; 3825bfead3b2SJayamohan Kallickal 3826bfead3b2SJayamohan Kallickal return 0; 3827bfead3b2SJayamohan Kallickal 3828bfead3b2SJayamohan Kallickal mcc_q_free: 3829bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 3830bfead3b2SJayamohan Kallickal mcc_cq_destroy: 3831bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, cq, QTYPE_CQ); 3832bfead3b2SJayamohan Kallickal mcc_cq_free: 3833bfead3b2SJayamohan Kallickal be_queue_free(phba, cq); 3834bfead3b2SJayamohan Kallickal err: 3835d3ad2bb3SJayamohan Kallickal return -ENOMEM; 3836bfead3b2SJayamohan Kallickal } 3837bfead3b2SJayamohan Kallickal 3838107dfcbaSJohn Soni Jose /** 3839107dfcbaSJohn Soni Jose * find_num_cpus()- Get the CPU online count 3840107dfcbaSJohn Soni Jose * @phba: ptr to priv structure 3841107dfcbaSJohn Soni Jose * 3842107dfcbaSJohn Soni Jose * CPU count is used for creating EQ. 3843107dfcbaSJohn Soni Jose **/ 3844107dfcbaSJohn Soni Jose static void find_num_cpus(struct beiscsi_hba *phba) 3845bfead3b2SJayamohan Kallickal { 3846bfead3b2SJayamohan Kallickal int num_cpus = 0; 3847bfead3b2SJayamohan Kallickal 3848bfead3b2SJayamohan Kallickal num_cpus = num_online_cpus(); 3849bfead3b2SJayamohan Kallickal 385022abeef0SJohn Soni Jose switch (phba->generation) { 385122abeef0SJohn Soni Jose case BE_GEN2: 385222abeef0SJohn Soni Jose case BE_GEN3: 385322abeef0SJohn Soni Jose phba->num_cpus = (num_cpus > BEISCSI_MAX_NUM_CPUS) ? 385422abeef0SJohn Soni Jose BEISCSI_MAX_NUM_CPUS : num_cpus; 385522abeef0SJohn Soni Jose break; 385622abeef0SJohn Soni Jose case BE_GEN4: 385768c26a3aSJayamohan Kallickal /* 385868c26a3aSJayamohan Kallickal * If eqid_count == 1 fall back to 385968c26a3aSJayamohan Kallickal * INTX mechanism 386068c26a3aSJayamohan Kallickal **/ 386168c26a3aSJayamohan Kallickal if (phba->fw_config.eqid_count == 1) { 386268c26a3aSJayamohan Kallickal enable_msix = 0; 386368c26a3aSJayamohan Kallickal phba->num_cpus = 1; 386468c26a3aSJayamohan Kallickal return; 386568c26a3aSJayamohan Kallickal } 386668c26a3aSJayamohan Kallickal 386768c26a3aSJayamohan Kallickal phba->num_cpus = 386868c26a3aSJayamohan Kallickal (num_cpus > (phba->fw_config.eqid_count - 1)) ? 386968c26a3aSJayamohan Kallickal (phba->fw_config.eqid_count - 1) : num_cpus; 387022abeef0SJohn Soni Jose break; 387122abeef0SJohn Soni Jose default: 387222abeef0SJohn Soni Jose phba->num_cpus = 1; 387322abeef0SJohn Soni Jose } 3874bfead3b2SJayamohan Kallickal } 38756733b39aSJayamohan Kallickal 38766733b39aSJayamohan Kallickal static int hwi_init_port(struct beiscsi_hba *phba) 38776733b39aSJayamohan Kallickal { 38786733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 38796733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 38806733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz; 38816733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 38828a86e833SJayamohan Kallickal int status, ulp_num; 38836733b39aSJayamohan Kallickal 38846733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 38856733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 388673af08e1SJayamohan Kallickal phwi_context->max_eqd = 128; 3887bfead3b2SJayamohan Kallickal phwi_context->min_eqd = 0; 388873af08e1SJayamohan Kallickal phwi_context->cur_eqd = 0; 38896733b39aSJayamohan Kallickal be_cmd_fw_initialize(&phba->ctrl); 389053aefe25SJitendra Bhivare /* set optic state to unknown */ 389153aefe25SJitendra Bhivare phba->optic_state = 0xff; 3892bfead3b2SJayamohan Kallickal 3893bfead3b2SJayamohan Kallickal status = beiscsi_create_eqs(phba, phwi_context); 38946733b39aSJayamohan Kallickal if (status != 0) { 389599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 389699bc5d55SJohn Soni Jose "BM_%d : EQ not created\n"); 38976733b39aSJayamohan Kallickal goto error; 38986733b39aSJayamohan Kallickal } 38996733b39aSJayamohan Kallickal 3900bfead3b2SJayamohan Kallickal status = be_mcc_queues_create(phba, phwi_context); 3901bfead3b2SJayamohan Kallickal if (status != 0) 3902bfead3b2SJayamohan Kallickal goto error; 3903bfead3b2SJayamohan Kallickal 3904bfead3b2SJayamohan Kallickal status = mgmt_check_supported_fw(ctrl, phba); 39056733b39aSJayamohan Kallickal if (status != 0) { 390699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 390799bc5d55SJohn Soni Jose "BM_%d : Unsupported fw version\n"); 39086733b39aSJayamohan Kallickal goto error; 39096733b39aSJayamohan Kallickal } 39106733b39aSJayamohan Kallickal 3911bfead3b2SJayamohan Kallickal status = beiscsi_create_cqs(phba, phwi_context); 39126733b39aSJayamohan Kallickal if (status != 0) { 391399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 391499bc5d55SJohn Soni Jose "BM_%d : CQ not created\n"); 39156733b39aSJayamohan Kallickal goto error; 39166733b39aSJayamohan Kallickal } 39176733b39aSJayamohan Kallickal 39188a86e833SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 39198a86e833SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { 39208a86e833SJayamohan Kallickal 39218a86e833SJayamohan Kallickal def_pdu_ring_sz = 39228a86e833SJayamohan Kallickal BEISCSI_GET_CID_COUNT(phba, ulp_num) * 39238a86e833SJayamohan Kallickal sizeof(struct phys_addr); 39248a86e833SJayamohan Kallickal 39258a86e833SJayamohan Kallickal status = beiscsi_create_def_hdr(phba, phwi_context, 39268a86e833SJayamohan Kallickal phwi_ctrlr, 39278a86e833SJayamohan Kallickal def_pdu_ring_sz, 39288a86e833SJayamohan Kallickal ulp_num); 39296733b39aSJayamohan Kallickal if (status != 0) { 393099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 39318a86e833SJayamohan Kallickal "BM_%d : Default Header not created for ULP : %d\n", 39328a86e833SJayamohan Kallickal ulp_num); 39336733b39aSJayamohan Kallickal goto error; 39346733b39aSJayamohan Kallickal } 39356733b39aSJayamohan Kallickal 39366733b39aSJayamohan Kallickal status = beiscsi_create_def_data(phba, phwi_context, 39378a86e833SJayamohan Kallickal phwi_ctrlr, 39388a86e833SJayamohan Kallickal def_pdu_ring_sz, 39398a86e833SJayamohan Kallickal ulp_num); 39406733b39aSJayamohan Kallickal if (status != 0) { 394199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 39428a86e833SJayamohan Kallickal "BM_%d : Default Data not created for ULP : %d\n", 39438a86e833SJayamohan Kallickal ulp_num); 39446733b39aSJayamohan Kallickal goto error; 39456733b39aSJayamohan Kallickal } 39468a86e833SJayamohan Kallickal } 39478a86e833SJayamohan Kallickal } 39486733b39aSJayamohan Kallickal 39496733b39aSJayamohan Kallickal status = beiscsi_post_pages(phba); 39506733b39aSJayamohan Kallickal if (status != 0) { 395199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 395299bc5d55SJohn Soni Jose "BM_%d : Post SGL Pages Failed\n"); 39536733b39aSJayamohan Kallickal goto error; 39546733b39aSJayamohan Kallickal } 39556733b39aSJayamohan Kallickal 395615a90fe0SJayamohan Kallickal status = beiscsi_post_template_hdr(phba); 395715a90fe0SJayamohan Kallickal if (status != 0) { 395815a90fe0SJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 395915a90fe0SJayamohan Kallickal "BM_%d : Template HDR Posting for CXN Failed\n"); 396015a90fe0SJayamohan Kallickal } 396115a90fe0SJayamohan Kallickal 39626733b39aSJayamohan Kallickal status = beiscsi_create_wrb_rings(phba, phwi_context, phwi_ctrlr); 39636733b39aSJayamohan Kallickal if (status != 0) { 396499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 396599bc5d55SJohn Soni Jose "BM_%d : WRB Rings not created\n"); 39666733b39aSJayamohan Kallickal goto error; 39676733b39aSJayamohan Kallickal } 39686733b39aSJayamohan Kallickal 39698a86e833SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 39708a86e833SJayamohan Kallickal uint16_t async_arr_idx = 0; 39718a86e833SJayamohan Kallickal 39728a86e833SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { 39738a86e833SJayamohan Kallickal uint16_t cri = 0; 39748a86e833SJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 39758a86e833SJayamohan Kallickal 39768a86e833SJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX( 39778a86e833SJayamohan Kallickal phwi_ctrlr, ulp_num); 39788a86e833SJayamohan Kallickal for (cri = 0; cri < 39798a86e833SJayamohan Kallickal phba->params.cxns_per_ctrl; cri++) { 39808a86e833SJayamohan Kallickal if (ulp_num == BEISCSI_GET_ULP_FROM_CRI 39818a86e833SJayamohan Kallickal (phwi_ctrlr, cri)) 39828a86e833SJayamohan Kallickal pasync_ctx->cid_to_async_cri_map[ 39838a86e833SJayamohan Kallickal phwi_ctrlr->wrb_context[cri].cid] = 39848a86e833SJayamohan Kallickal async_arr_idx++; 39858a86e833SJayamohan Kallickal } 39868a86e833SJayamohan Kallickal } 39878a86e833SJayamohan Kallickal } 39888a86e833SJayamohan Kallickal 398999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 399099bc5d55SJohn Soni Jose "BM_%d : hwi_init_port success\n"); 39916733b39aSJayamohan Kallickal return 0; 39926733b39aSJayamohan Kallickal 39936733b39aSJayamohan Kallickal error: 399499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 399599bc5d55SJohn Soni Jose "BM_%d : hwi_init_port failed"); 39966733b39aSJayamohan Kallickal hwi_cleanup(phba); 3997a49e06d5SJayamohan Kallickal return status; 39986733b39aSJayamohan Kallickal } 39996733b39aSJayamohan Kallickal 40006733b39aSJayamohan Kallickal static int hwi_init_controller(struct beiscsi_hba *phba) 40016733b39aSJayamohan Kallickal { 40026733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 40036733b39aSJayamohan Kallickal 40046733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 40056733b39aSJayamohan Kallickal if (1 == phba->init_mem[HWI_MEM_ADDN_CONTEXT].num_elements) { 40066733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt = (struct hwi_context_memory *)phba-> 40076733b39aSJayamohan Kallickal init_mem[HWI_MEM_ADDN_CONTEXT].mem_array[0].virtual_address; 400899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 400999bc5d55SJohn Soni Jose "BM_%d : phwi_ctrlr->phwi_ctxt=%p\n", 40106733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt); 40116733b39aSJayamohan Kallickal } else { 401299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 401399bc5d55SJohn Soni Jose "BM_%d : HWI_MEM_ADDN_CONTEXT is more " 401499bc5d55SJohn Soni Jose "than one element.Failing to load\n"); 40156733b39aSJayamohan Kallickal return -ENOMEM; 40166733b39aSJayamohan Kallickal } 40176733b39aSJayamohan Kallickal 40186733b39aSJayamohan Kallickal iscsi_init_global_templates(phba); 40193ec78271SJayamohan Kallickal if (beiscsi_init_wrb_handle(phba)) 40203ec78271SJayamohan Kallickal return -ENOMEM; 40213ec78271SJayamohan Kallickal 4022a7909b39SJayamohan Kallickal if (hwi_init_async_pdu_ctx(phba)) { 4023a7909b39SJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 4024a7909b39SJayamohan Kallickal "BM_%d : hwi_init_async_pdu_ctx failed\n"); 4025a7909b39SJayamohan Kallickal return -ENOMEM; 4026a7909b39SJayamohan Kallickal } 4027a7909b39SJayamohan Kallickal 40286733b39aSJayamohan Kallickal if (hwi_init_port(phba) != 0) { 402999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 403099bc5d55SJohn Soni Jose "BM_%d : hwi_init_controller failed\n"); 403199bc5d55SJohn Soni Jose 40326733b39aSJayamohan Kallickal return -ENOMEM; 40336733b39aSJayamohan Kallickal } 40346733b39aSJayamohan Kallickal return 0; 40356733b39aSJayamohan Kallickal } 40366733b39aSJayamohan Kallickal 40376733b39aSJayamohan Kallickal static void beiscsi_free_mem(struct beiscsi_hba *phba) 40386733b39aSJayamohan Kallickal { 40396733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 40406733b39aSJayamohan Kallickal int i, j; 40416733b39aSJayamohan Kallickal 40426733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 40436733b39aSJayamohan Kallickal i = 0; 40446733b39aSJayamohan Kallickal j = 0; 40456733b39aSJayamohan Kallickal for (i = 0; i < SE_MEM_MAX; i++) { 40466733b39aSJayamohan Kallickal for (j = mem_descr->num_elements; j > 0; j--) { 40476733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 40486733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].size, 40496733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].virtual_address, 4050457ff3b7SJayamohan Kallickal (unsigned long)mem_descr->mem_array[j - 1]. 4051457ff3b7SJayamohan Kallickal bus_address.u.a64.address); 40526733b39aSJayamohan Kallickal } 40538a86e833SJayamohan Kallickal 40546733b39aSJayamohan Kallickal kfree(mem_descr->mem_array); 40556733b39aSJayamohan Kallickal mem_descr++; 40566733b39aSJayamohan Kallickal } 40576733b39aSJayamohan Kallickal kfree(phba->init_mem); 4058a7909b39SJayamohan Kallickal kfree(phba->phwi_ctrlr->wrb_context); 40596733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 40606733b39aSJayamohan Kallickal } 40616733b39aSJayamohan Kallickal 40626733b39aSJayamohan Kallickal static int beiscsi_init_controller(struct beiscsi_hba *phba) 40636733b39aSJayamohan Kallickal { 40646733b39aSJayamohan Kallickal int ret = -ENOMEM; 40656733b39aSJayamohan Kallickal 40666733b39aSJayamohan Kallickal ret = beiscsi_get_memory(phba); 40676733b39aSJayamohan Kallickal if (ret < 0) { 406899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 406999bc5d55SJohn Soni Jose "BM_%d : beiscsi_dev_probe -" 40706733b39aSJayamohan Kallickal "Failed in beiscsi_alloc_memory\n"); 40716733b39aSJayamohan Kallickal return ret; 40726733b39aSJayamohan Kallickal } 40736733b39aSJayamohan Kallickal 40746733b39aSJayamohan Kallickal ret = hwi_init_controller(phba); 40756733b39aSJayamohan Kallickal if (ret) 40766733b39aSJayamohan Kallickal goto free_init; 407799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 407899bc5d55SJohn Soni Jose "BM_%d : Return success from beiscsi_init_controller"); 407999bc5d55SJohn Soni Jose 40806733b39aSJayamohan Kallickal return 0; 40816733b39aSJayamohan Kallickal 40826733b39aSJayamohan Kallickal free_init: 40836733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 4084a49e06d5SJayamohan Kallickal return ret; 40856733b39aSJayamohan Kallickal } 40866733b39aSJayamohan Kallickal 40876733b39aSJayamohan Kallickal static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba) 40886733b39aSJayamohan Kallickal { 40896733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg; 40906733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 40916733b39aSJayamohan Kallickal struct iscsi_sge *pfrag; 409290622db3SJayamohan Kallickal unsigned int arr_index, i, idx; 409390622db3SJayamohan Kallickal unsigned int ulp_icd_start, ulp_num = 0; 40946733b39aSJayamohan Kallickal 40956733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl = 0; 40966733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl = 0; 4097bfead3b2SJayamohan Kallickal 40986733b39aSJayamohan Kallickal mem_descr_sglh = phba->init_mem; 40996733b39aSJayamohan Kallickal mem_descr_sglh += HWI_MEM_SGLH; 41006733b39aSJayamohan Kallickal if (1 == mem_descr_sglh->num_elements) { 41016733b39aSJayamohan Kallickal phba->io_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) * 41026733b39aSJayamohan Kallickal phba->params.ios_per_ctrl, 41036733b39aSJayamohan Kallickal GFP_KERNEL); 41046733b39aSJayamohan Kallickal if (!phba->io_sgl_hndl_base) { 410599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 410699bc5d55SJohn Soni Jose "BM_%d : Mem Alloc Failed. Failing to load\n"); 41076733b39aSJayamohan Kallickal return -ENOMEM; 41086733b39aSJayamohan Kallickal } 41096733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) * 41106733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - 41116733b39aSJayamohan Kallickal phba->params.ios_per_ctrl), 41126733b39aSJayamohan Kallickal GFP_KERNEL); 41136733b39aSJayamohan Kallickal if (!phba->eh_sgl_hndl_base) { 41146733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 411599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 411699bc5d55SJohn Soni Jose "BM_%d : Mem Alloc Failed. Failing to load\n"); 41176733b39aSJayamohan Kallickal return -ENOMEM; 41186733b39aSJayamohan Kallickal } 41196733b39aSJayamohan Kallickal } else { 412099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 412199bc5d55SJohn Soni Jose "BM_%d : HWI_MEM_SGLH is more than one element." 41226733b39aSJayamohan Kallickal "Failing to load\n"); 41236733b39aSJayamohan Kallickal return -ENOMEM; 41246733b39aSJayamohan Kallickal } 41256733b39aSJayamohan Kallickal 41266733b39aSJayamohan Kallickal arr_index = 0; 41276733b39aSJayamohan Kallickal idx = 0; 41286733b39aSJayamohan Kallickal while (idx < mem_descr_sglh->num_elements) { 41296733b39aSJayamohan Kallickal psgl_handle = mem_descr_sglh->mem_array[idx].virtual_address; 41306733b39aSJayamohan Kallickal 41316733b39aSJayamohan Kallickal for (i = 0; i < (mem_descr_sglh->mem_array[idx].size / 41326733b39aSJayamohan Kallickal sizeof(struct sgl_handle)); i++) { 41336733b39aSJayamohan Kallickal if (arr_index < phba->params.ios_per_ctrl) { 41346733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[arr_index] = psgl_handle; 41356733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl++; 41366733b39aSJayamohan Kallickal arr_index++; 41376733b39aSJayamohan Kallickal } else { 41386733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[arr_index - 41396733b39aSJayamohan Kallickal phba->params.ios_per_ctrl] = 41406733b39aSJayamohan Kallickal psgl_handle; 41416733b39aSJayamohan Kallickal arr_index++; 41426733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl++; 41436733b39aSJayamohan Kallickal } 41446733b39aSJayamohan Kallickal psgl_handle++; 41456733b39aSJayamohan Kallickal } 41466733b39aSJayamohan Kallickal idx++; 41476733b39aSJayamohan Kallickal } 414899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 414999bc5d55SJohn Soni Jose "BM_%d : phba->io_sgl_hndl_avbl=%d" 41506733b39aSJayamohan Kallickal "phba->eh_sgl_hndl_avbl=%d\n", 41516733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl, 41526733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl); 415399bc5d55SJohn Soni Jose 41546733b39aSJayamohan Kallickal mem_descr_sg = phba->init_mem; 41556733b39aSJayamohan Kallickal mem_descr_sg += HWI_MEM_SGE; 415699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 415799bc5d55SJohn Soni Jose "\n BM_%d : mem_descr_sg->num_elements=%d\n", 41586733b39aSJayamohan Kallickal mem_descr_sg->num_elements); 415999bc5d55SJohn Soni Jose 416090622db3SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) 416190622db3SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) 416290622db3SJayamohan Kallickal break; 416390622db3SJayamohan Kallickal 416490622db3SJayamohan Kallickal ulp_icd_start = phba->fw_config.iscsi_icd_start[ulp_num]; 416590622db3SJayamohan Kallickal 41666733b39aSJayamohan Kallickal arr_index = 0; 41676733b39aSJayamohan Kallickal idx = 0; 41686733b39aSJayamohan Kallickal while (idx < mem_descr_sg->num_elements) { 41696733b39aSJayamohan Kallickal pfrag = mem_descr_sg->mem_array[idx].virtual_address; 41706733b39aSJayamohan Kallickal 41716733b39aSJayamohan Kallickal for (i = 0; 41726733b39aSJayamohan Kallickal i < (mem_descr_sg->mem_array[idx].size) / 41736733b39aSJayamohan Kallickal (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io); 41746733b39aSJayamohan Kallickal i++) { 41756733b39aSJayamohan Kallickal if (arr_index < phba->params.ios_per_ctrl) 41766733b39aSJayamohan Kallickal psgl_handle = phba->io_sgl_hndl_base[arr_index]; 41776733b39aSJayamohan Kallickal else 41786733b39aSJayamohan Kallickal psgl_handle = phba->eh_sgl_hndl_base[arr_index - 41796733b39aSJayamohan Kallickal phba->params.ios_per_ctrl]; 41806733b39aSJayamohan Kallickal psgl_handle->pfrag = pfrag; 41816733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, pfrag, 0); 41826733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0); 41836733b39aSJayamohan Kallickal pfrag += phba->params.num_sge_per_io; 418490622db3SJayamohan Kallickal psgl_handle->sgl_index = ulp_icd_start + arr_index++; 41856733b39aSJayamohan Kallickal } 41866733b39aSJayamohan Kallickal idx++; 41876733b39aSJayamohan Kallickal } 41886733b39aSJayamohan Kallickal phba->io_sgl_free_index = 0; 41896733b39aSJayamohan Kallickal phba->io_sgl_alloc_index = 0; 41906733b39aSJayamohan Kallickal phba->eh_sgl_free_index = 0; 41916733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index = 0; 41926733b39aSJayamohan Kallickal return 0; 41936733b39aSJayamohan Kallickal } 41946733b39aSJayamohan Kallickal 41956733b39aSJayamohan Kallickal static int hba_setup_cid_tbls(struct beiscsi_hba *phba) 41966733b39aSJayamohan Kallickal { 41970a3db7c0SJayamohan Kallickal int ret; 41980a3db7c0SJayamohan Kallickal uint16_t i, ulp_num; 41990a3db7c0SJayamohan Kallickal struct ulp_cid_info *ptr_cid_info = NULL; 42006733b39aSJayamohan Kallickal 42010a3db7c0SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 42020a3db7c0SJayamohan Kallickal if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) { 42030a3db7c0SJayamohan Kallickal ptr_cid_info = kzalloc(sizeof(struct ulp_cid_info), 42046733b39aSJayamohan Kallickal GFP_KERNEL); 42050a3db7c0SJayamohan Kallickal 42060a3db7c0SJayamohan Kallickal if (!ptr_cid_info) { 420799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 42080a3db7c0SJayamohan Kallickal "BM_%d : Failed to allocate memory" 42090a3db7c0SJayamohan Kallickal "for ULP_CID_INFO for ULP : %d\n", 42100a3db7c0SJayamohan Kallickal ulp_num); 42110a3db7c0SJayamohan Kallickal ret = -ENOMEM; 42120a3db7c0SJayamohan Kallickal goto free_memory; 42130a3db7c0SJayamohan Kallickal 42140a3db7c0SJayamohan Kallickal } 42150a3db7c0SJayamohan Kallickal 42160a3db7c0SJayamohan Kallickal /* Allocate memory for CID array */ 42170a3db7c0SJayamohan Kallickal ptr_cid_info->cid_array = kzalloc(sizeof(void *) * 42180a3db7c0SJayamohan Kallickal BEISCSI_GET_CID_COUNT(phba, 42190a3db7c0SJayamohan Kallickal ulp_num), GFP_KERNEL); 42200a3db7c0SJayamohan Kallickal if (!ptr_cid_info->cid_array) { 42210a3db7c0SJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 42220a3db7c0SJayamohan Kallickal "BM_%d : Failed to allocate memory" 42230a3db7c0SJayamohan Kallickal "for CID_ARRAY for ULP : %d\n", 42240a3db7c0SJayamohan Kallickal ulp_num); 42250a3db7c0SJayamohan Kallickal kfree(ptr_cid_info); 42260a3db7c0SJayamohan Kallickal ptr_cid_info = NULL; 42270a3db7c0SJayamohan Kallickal ret = -ENOMEM; 42280a3db7c0SJayamohan Kallickal 42290a3db7c0SJayamohan Kallickal goto free_memory; 42300a3db7c0SJayamohan Kallickal } 42310a3db7c0SJayamohan Kallickal ptr_cid_info->avlbl_cids = BEISCSI_GET_CID_COUNT( 42320a3db7c0SJayamohan Kallickal phba, ulp_num); 42330a3db7c0SJayamohan Kallickal 42340a3db7c0SJayamohan Kallickal /* Save the cid_info_array ptr */ 42350a3db7c0SJayamohan Kallickal phba->cid_array_info[ulp_num] = ptr_cid_info; 42360a3db7c0SJayamohan Kallickal } 42376733b39aSJayamohan Kallickal } 4238c2462288SJayamohan Kallickal phba->ep_array = kzalloc(sizeof(struct iscsi_endpoint *) * 4239a7909b39SJayamohan Kallickal phba->params.cxns_per_ctrl, GFP_KERNEL); 42406733b39aSJayamohan Kallickal if (!phba->ep_array) { 424199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 424299bc5d55SJohn Soni Jose "BM_%d : Failed to allocate memory in " 42436733b39aSJayamohan Kallickal "hba_setup_cid_tbls\n"); 42440a3db7c0SJayamohan Kallickal ret = -ENOMEM; 42450a3db7c0SJayamohan Kallickal 42460a3db7c0SJayamohan Kallickal goto free_memory; 42476733b39aSJayamohan Kallickal } 4248a7909b39SJayamohan Kallickal 4249a7909b39SJayamohan Kallickal phba->conn_table = kzalloc(sizeof(struct beiscsi_conn *) * 4250a7909b39SJayamohan Kallickal phba->params.cxns_per_ctrl, GFP_KERNEL); 4251a7909b39SJayamohan Kallickal if (!phba->conn_table) { 4252a7909b39SJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 4253a7909b39SJayamohan Kallickal "BM_%d : Failed to allocate memory in" 4254a7909b39SJayamohan Kallickal "hba_setup_cid_tbls\n"); 4255a7909b39SJayamohan Kallickal 4256a7909b39SJayamohan Kallickal kfree(phba->ep_array); 4257a7909b39SJayamohan Kallickal phba->ep_array = NULL; 42580a3db7c0SJayamohan Kallickal ret = -ENOMEM; 42595f2d25efSTomas Henzl 42605f2d25efSTomas Henzl goto free_memory; 42616733b39aSJayamohan Kallickal } 4262a7909b39SJayamohan Kallickal 42630a3db7c0SJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 42640a3db7c0SJayamohan Kallickal ulp_num = phba->phwi_ctrlr->wrb_context[i].ulp_num; 4265a7909b39SJayamohan Kallickal 42660a3db7c0SJayamohan Kallickal ptr_cid_info = phba->cid_array_info[ulp_num]; 42670a3db7c0SJayamohan Kallickal ptr_cid_info->cid_array[ptr_cid_info->cid_alloc++] = 42680a3db7c0SJayamohan Kallickal phba->phwi_ctrlr->wrb_context[i].cid; 42690a3db7c0SJayamohan Kallickal 42700a3db7c0SJayamohan Kallickal } 42710a3db7c0SJayamohan Kallickal 42720a3db7c0SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 42730a3db7c0SJayamohan Kallickal if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) { 42740a3db7c0SJayamohan Kallickal ptr_cid_info = phba->cid_array_info[ulp_num]; 42750a3db7c0SJayamohan Kallickal 42760a3db7c0SJayamohan Kallickal ptr_cid_info->cid_alloc = 0; 42770a3db7c0SJayamohan Kallickal ptr_cid_info->cid_free = 0; 42780a3db7c0SJayamohan Kallickal } 42790a3db7c0SJayamohan Kallickal } 42806733b39aSJayamohan Kallickal return 0; 42810a3db7c0SJayamohan Kallickal 42820a3db7c0SJayamohan Kallickal free_memory: 42830a3db7c0SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 42840a3db7c0SJayamohan Kallickal if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) { 42850a3db7c0SJayamohan Kallickal ptr_cid_info = phba->cid_array_info[ulp_num]; 42860a3db7c0SJayamohan Kallickal 42870a3db7c0SJayamohan Kallickal if (ptr_cid_info) { 42880a3db7c0SJayamohan Kallickal kfree(ptr_cid_info->cid_array); 42890a3db7c0SJayamohan Kallickal kfree(ptr_cid_info); 42900a3db7c0SJayamohan Kallickal phba->cid_array_info[ulp_num] = NULL; 42910a3db7c0SJayamohan Kallickal } 42920a3db7c0SJayamohan Kallickal } 42930a3db7c0SJayamohan Kallickal } 42940a3db7c0SJayamohan Kallickal 42950a3db7c0SJayamohan Kallickal return ret; 42966733b39aSJayamohan Kallickal } 42976733b39aSJayamohan Kallickal 4298238f6b72SJayamohan Kallickal static void hwi_enable_intr(struct beiscsi_hba *phba) 42996733b39aSJayamohan Kallickal { 43006733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 43016733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 43026733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 43036733b39aSJayamohan Kallickal struct be_queue_info *eq; 43046733b39aSJayamohan Kallickal u8 __iomem *addr; 4305bfead3b2SJayamohan Kallickal u32 reg, i; 43066733b39aSJayamohan Kallickal u32 enabled; 43076733b39aSJayamohan Kallickal 43086733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 43096733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 43106733b39aSJayamohan Kallickal 43116733b39aSJayamohan Kallickal addr = (u8 __iomem *) ((u8 __iomem *) ctrl->pcicfg + 43126733b39aSJayamohan Kallickal PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET); 43136733b39aSJayamohan Kallickal reg = ioread32(addr); 43146733b39aSJayamohan Kallickal 43156733b39aSJayamohan Kallickal enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 43166733b39aSJayamohan Kallickal if (!enabled) { 43176733b39aSJayamohan Kallickal reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 431899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 431999bc5d55SJohn Soni Jose "BM_%d : reg =x%08x addr=%p\n", reg, addr); 43206733b39aSJayamohan Kallickal iowrite32(reg, addr); 4321665d6d94SJayamohan Kallickal } 4322665d6d94SJayamohan Kallickal 4323c03af1aeSJayamohan Kallickal if (!phba->msix_enabled) { 4324c03af1aeSJayamohan Kallickal eq = &phwi_context->be_eq[0].q; 432599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 432699bc5d55SJohn Soni Jose "BM_%d : eq->id=%d\n", eq->id); 432799bc5d55SJohn Soni Jose 4328c03af1aeSJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1); 4329c03af1aeSJayamohan Kallickal } else { 4330bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) { 4331bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 433299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 433399bc5d55SJohn Soni Jose "BM_%d : eq->id=%d\n", eq->id); 43346733b39aSJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1); 4335bfead3b2SJayamohan Kallickal } 4336c03af1aeSJayamohan Kallickal } 4337c03af1aeSJayamohan Kallickal } 43386733b39aSJayamohan Kallickal 43396733b39aSJayamohan Kallickal static void hwi_disable_intr(struct beiscsi_hba *phba) 43406733b39aSJayamohan Kallickal { 43416733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 43426733b39aSJayamohan Kallickal 43436733b39aSJayamohan Kallickal u8 __iomem *addr = ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET; 43446733b39aSJayamohan Kallickal u32 reg = ioread32(addr); 43456733b39aSJayamohan Kallickal 43466733b39aSJayamohan Kallickal u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 43476733b39aSJayamohan Kallickal if (enabled) { 43486733b39aSJayamohan Kallickal reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 43496733b39aSJayamohan Kallickal iowrite32(reg, addr); 43506733b39aSJayamohan Kallickal } else 435199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT, 435299bc5d55SJohn Soni Jose "BM_%d : In hwi_disable_intr, Already Disabled\n"); 43536733b39aSJayamohan Kallickal } 43546733b39aSJayamohan Kallickal 43559aef4200SJohn Soni Jose /** 43569aef4200SJohn Soni Jose * beiscsi_get_boot_info()- Get the boot session info 43579aef4200SJohn Soni Jose * @phba: The device priv structure instance 43589aef4200SJohn Soni Jose * 43599aef4200SJohn Soni Jose * Get the boot target info and store in driver priv structure 43609aef4200SJohn Soni Jose * 43619aef4200SJohn Soni Jose * return values 43629aef4200SJohn Soni Jose * Success: 0 43639aef4200SJohn Soni Jose * Failure: Non-Zero Value 43649aef4200SJohn Soni Jose **/ 4365c7acc5b8SJayamohan Kallickal static int beiscsi_get_boot_info(struct beiscsi_hba *phba) 4366c7acc5b8SJayamohan Kallickal { 43670e43895eSMike Christie struct be_cmd_get_session_resp *session_resp; 4368c7acc5b8SJayamohan Kallickal struct be_dma_mem nonemb_cmd; 4369e175defeSJohn Soni Jose unsigned int tag; 43709aef4200SJohn Soni Jose unsigned int s_handle; 4371f457a46fSMike Christie int ret = -ENOMEM; 4372c7acc5b8SJayamohan Kallickal 43739aef4200SJohn Soni Jose /* Get the session handle of the boot target */ 43749aef4200SJohn Soni Jose ret = be_mgmt_get_boot_shandle(phba, &s_handle); 43759aef4200SJohn Soni Jose if (ret) { 437699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 437799bc5d55SJohn Soni Jose BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG, 437899bc5d55SJohn Soni Jose "BM_%d : No boot session\n"); 43793efde862SJohn Soni Jose 43803efde862SJohn Soni Jose if (ret == -ENXIO) 43813efde862SJohn Soni Jose phba->get_boot = 0; 43823efde862SJohn Soni Jose 43833efde862SJohn Soni Jose 43849aef4200SJohn Soni Jose return ret; 4385c7acc5b8SJayamohan Kallickal } 43863efde862SJohn Soni Jose phba->get_boot = 0; 43877c845eb5SJoe Perches nonemb_cmd.va = pci_zalloc_consistent(phba->ctrl.pdev, 4388c7acc5b8SJayamohan Kallickal sizeof(*session_resp), 4389c7acc5b8SJayamohan Kallickal &nonemb_cmd.dma); 4390c7acc5b8SJayamohan Kallickal if (nonemb_cmd.va == NULL) { 439199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 439299bc5d55SJohn Soni Jose BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG, 439399bc5d55SJohn Soni Jose "BM_%d : Failed to allocate memory for" 4394c7acc5b8SJayamohan Kallickal "beiscsi_get_session_info\n"); 439599bc5d55SJohn Soni Jose 4396c7acc5b8SJayamohan Kallickal return -ENOMEM; 4397c7acc5b8SJayamohan Kallickal } 4398c7acc5b8SJayamohan Kallickal 43999aef4200SJohn Soni Jose tag = mgmt_get_session_info(phba, s_handle, 44000e43895eSMike Christie &nonemb_cmd); 4401c7acc5b8SJayamohan Kallickal if (!tag) { 440299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 440399bc5d55SJohn Soni Jose BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG, 440499bc5d55SJohn Soni Jose "BM_%d : beiscsi_get_session_info" 4405c7acc5b8SJayamohan Kallickal " Failed\n"); 440699bc5d55SJohn Soni Jose 4407c7acc5b8SJayamohan Kallickal goto boot_freemem; 4408e175defeSJohn Soni Jose } 4409c7acc5b8SJayamohan Kallickal 441088840332SJitendra Bhivare ret = beiscsi_mccq_compl_wait(phba, tag, NULL, &nonemb_cmd); 4411e175defeSJohn Soni Jose if (ret) { 441299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 441399bc5d55SJohn Soni Jose BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG, 4414e175defeSJohn Soni Jose "BM_%d : beiscsi_get_session_info Failed"); 44151957aa7fSJayamohan Kallickal 44161957aa7fSJayamohan Kallickal if (ret != -EBUSY) 4417c7acc5b8SJayamohan Kallickal goto boot_freemem; 44181957aa7fSJayamohan Kallickal else 44191957aa7fSJayamohan Kallickal return ret; 4420c7acc5b8SJayamohan Kallickal } 4421e175defeSJohn Soni Jose 4422c7acc5b8SJayamohan Kallickal session_resp = nonemb_cmd.va ; 4423f457a46fSMike Christie 4424c7acc5b8SJayamohan Kallickal memcpy(&phba->boot_sess, &session_resp->session_info, 4425c7acc5b8SJayamohan Kallickal sizeof(struct mgmt_session_info)); 44263f4134c1SJohn Soni Jose 44273f4134c1SJohn Soni Jose beiscsi_logout_fw_sess(phba, 44283f4134c1SJohn Soni Jose phba->boot_sess.session_handle); 4429f457a46fSMike Christie ret = 0; 4430f457a46fSMike Christie 4431c7acc5b8SJayamohan Kallickal boot_freemem: 4432c7acc5b8SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 4433c7acc5b8SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 4434f457a46fSMike Christie return ret; 4435f457a46fSMike Christie } 4436f457a46fSMike Christie 4437f457a46fSMike Christie static void beiscsi_boot_release(void *data) 4438f457a46fSMike Christie { 4439f457a46fSMike Christie struct beiscsi_hba *phba = data; 4440f457a46fSMike Christie 4441f457a46fSMike Christie scsi_host_put(phba->shost); 4442f457a46fSMike Christie } 4443f457a46fSMike Christie 4444f457a46fSMike Christie static int beiscsi_setup_boot_info(struct beiscsi_hba *phba) 4445f457a46fSMike Christie { 4446f457a46fSMike Christie struct iscsi_boot_kobj *boot_kobj; 4447f457a46fSMike Christie 4448a3d313eaSJayamohan Kallickal /* it has been created previously */ 4449a3d313eaSJayamohan Kallickal if (phba->boot_kset) 4450a3d313eaSJayamohan Kallickal return 0; 4451a3d313eaSJayamohan Kallickal 4452f457a46fSMike Christie /* get boot info using mgmt cmd */ 4453f457a46fSMike Christie if (beiscsi_get_boot_info(phba)) 4454f457a46fSMike Christie /* Try to see if we can carry on without this */ 4455f457a46fSMike Christie return 0; 4456f457a46fSMike Christie 4457f457a46fSMike Christie phba->boot_kset = iscsi_boot_create_host_kset(phba->shost->host_no); 4458f457a46fSMike Christie if (!phba->boot_kset) 4459f457a46fSMike Christie return -ENOMEM; 4460f457a46fSMike Christie 4461f457a46fSMike Christie /* get a ref because the show function will ref the phba */ 4462f457a46fSMike Christie if (!scsi_host_get(phba->shost)) 4463f457a46fSMike Christie goto free_kset; 4464f457a46fSMike Christie boot_kobj = iscsi_boot_create_target(phba->boot_kset, 0, phba, 4465f457a46fSMike Christie beiscsi_show_boot_tgt_info, 4466f457a46fSMike Christie beiscsi_tgt_get_attr_visibility, 4467f457a46fSMike Christie beiscsi_boot_release); 4468f457a46fSMike Christie if (!boot_kobj) 4469f457a46fSMike Christie goto put_shost; 4470f457a46fSMike Christie 4471f457a46fSMike Christie if (!scsi_host_get(phba->shost)) 4472f457a46fSMike Christie goto free_kset; 4473f457a46fSMike Christie boot_kobj = iscsi_boot_create_initiator(phba->boot_kset, 0, phba, 4474f457a46fSMike Christie beiscsi_show_boot_ini_info, 4475f457a46fSMike Christie beiscsi_ini_get_attr_visibility, 4476f457a46fSMike Christie beiscsi_boot_release); 4477f457a46fSMike Christie if (!boot_kobj) 4478f457a46fSMike Christie goto put_shost; 4479f457a46fSMike Christie 4480f457a46fSMike Christie if (!scsi_host_get(phba->shost)) 4481f457a46fSMike Christie goto free_kset; 4482f457a46fSMike Christie boot_kobj = iscsi_boot_create_ethernet(phba->boot_kset, 0, phba, 4483f457a46fSMike Christie beiscsi_show_boot_eth_info, 4484f457a46fSMike Christie beiscsi_eth_get_attr_visibility, 4485f457a46fSMike Christie beiscsi_boot_release); 4486f457a46fSMike Christie if (!boot_kobj) 4487f457a46fSMike Christie goto put_shost; 4488f457a46fSMike Christie return 0; 4489f457a46fSMike Christie 4490f457a46fSMike Christie put_shost: 4491f457a46fSMike Christie scsi_host_put(phba->shost); 4492f457a46fSMike Christie free_kset: 4493f457a46fSMike Christie iscsi_boot_destroy_kset(phba->boot_kset); 4494c7acc5b8SJayamohan Kallickal return -ENOMEM; 4495c7acc5b8SJayamohan Kallickal } 4496c7acc5b8SJayamohan Kallickal 44976733b39aSJayamohan Kallickal static int beiscsi_init_port(struct beiscsi_hba *phba) 44986733b39aSJayamohan Kallickal { 44996733b39aSJayamohan Kallickal int ret; 45006733b39aSJayamohan Kallickal 45016733b39aSJayamohan Kallickal ret = beiscsi_init_controller(phba); 45026733b39aSJayamohan Kallickal if (ret < 0) { 450399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 450499bc5d55SJohn Soni Jose "BM_%d : beiscsi_dev_probe - Failed in" 45056733b39aSJayamohan Kallickal "beiscsi_init_controller\n"); 45066733b39aSJayamohan Kallickal return ret; 45076733b39aSJayamohan Kallickal } 45086733b39aSJayamohan Kallickal ret = beiscsi_init_sgl_handle(phba); 45096733b39aSJayamohan Kallickal if (ret < 0) { 451099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 451199bc5d55SJohn Soni Jose "BM_%d : beiscsi_dev_probe - Failed in" 45126733b39aSJayamohan Kallickal "beiscsi_init_sgl_handle\n"); 45136733b39aSJayamohan Kallickal goto do_cleanup_ctrlr; 45146733b39aSJayamohan Kallickal } 45156733b39aSJayamohan Kallickal 45166733b39aSJayamohan Kallickal if (hba_setup_cid_tbls(phba)) { 451799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 451899bc5d55SJohn Soni Jose "BM_%d : Failed in hba_setup_cid_tbls\n"); 45196733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 45206733b39aSJayamohan Kallickal kfree(phba->eh_sgl_hndl_base); 45216733b39aSJayamohan Kallickal goto do_cleanup_ctrlr; 45226733b39aSJayamohan Kallickal } 45236733b39aSJayamohan Kallickal 45246733b39aSJayamohan Kallickal return ret; 45256733b39aSJayamohan Kallickal 45266733b39aSJayamohan Kallickal do_cleanup_ctrlr: 45276733b39aSJayamohan Kallickal hwi_cleanup(phba); 45286733b39aSJayamohan Kallickal return ret; 45296733b39aSJayamohan Kallickal } 45306733b39aSJayamohan Kallickal 45316733b39aSJayamohan Kallickal static void hwi_purge_eq(struct beiscsi_hba *phba) 45326733b39aSJayamohan Kallickal { 45336733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 45346733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 45356733b39aSJayamohan Kallickal struct be_queue_info *eq; 45366733b39aSJayamohan Kallickal struct be_eq_entry *eqe = NULL; 4537bfead3b2SJayamohan Kallickal int i, eq_msix; 4538756d29c8SJayamohan Kallickal unsigned int num_processed; 45396733b39aSJayamohan Kallickal 45406733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 45416733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 4542bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 4543bfead3b2SJayamohan Kallickal eq_msix = 1; 4544bfead3b2SJayamohan Kallickal else 4545bfead3b2SJayamohan Kallickal eq_msix = 0; 4546bfead3b2SJayamohan Kallickal 4547bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_msix); i++) { 4548bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 45496733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 4550756d29c8SJayamohan Kallickal num_processed = 0; 45516733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 45526733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 45536733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 45546733b39aSJayamohan Kallickal queue_tail_inc(eq); 45556733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 4556756d29c8SJayamohan Kallickal num_processed++; 45576733b39aSJayamohan Kallickal } 4558756d29c8SJayamohan Kallickal 4559756d29c8SJayamohan Kallickal if (num_processed) 4560756d29c8SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_processed, 1, 1); 45616733b39aSJayamohan Kallickal } 4562bfead3b2SJayamohan Kallickal } 45636733b39aSJayamohan Kallickal 45646733b39aSJayamohan Kallickal static void beiscsi_clean_port(struct beiscsi_hba *phba) 45656733b39aSJayamohan Kallickal { 45660a3db7c0SJayamohan Kallickal int mgmt_status, ulp_num; 45670a3db7c0SJayamohan Kallickal struct ulp_cid_info *ptr_cid_info = NULL; 45686733b39aSJayamohan Kallickal 4569bd41c2bdSJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 4570bd41c2bdSJayamohan Kallickal if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) { 4571bd41c2bdSJayamohan Kallickal mgmt_status = mgmt_epfw_cleanup(phba, ulp_num); 45726733b39aSJayamohan Kallickal if (mgmt_status) 4573bd41c2bdSJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 4574bd41c2bdSJayamohan Kallickal BEISCSI_LOG_INIT, 4575bd41c2bdSJayamohan Kallickal "BM_%d : mgmt_epfw_cleanup FAILED" 4576bd41c2bdSJayamohan Kallickal " for ULP_%d\n", ulp_num); 4577bd41c2bdSJayamohan Kallickal } 4578bd41c2bdSJayamohan Kallickal } 4579756d29c8SJayamohan Kallickal 45806733b39aSJayamohan Kallickal hwi_purge_eq(phba); 4581756d29c8SJayamohan Kallickal hwi_cleanup(phba); 45826733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 45836733b39aSJayamohan Kallickal kfree(phba->eh_sgl_hndl_base); 45846733b39aSJayamohan Kallickal kfree(phba->ep_array); 4585a7909b39SJayamohan Kallickal kfree(phba->conn_table); 45860a3db7c0SJayamohan Kallickal 45870a3db7c0SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 45880a3db7c0SJayamohan Kallickal if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) { 45890a3db7c0SJayamohan Kallickal ptr_cid_info = phba->cid_array_info[ulp_num]; 45900a3db7c0SJayamohan Kallickal 45910a3db7c0SJayamohan Kallickal if (ptr_cid_info) { 45920a3db7c0SJayamohan Kallickal kfree(ptr_cid_info->cid_array); 45930a3db7c0SJayamohan Kallickal kfree(ptr_cid_info); 45940a3db7c0SJayamohan Kallickal phba->cid_array_info[ulp_num] = NULL; 45950a3db7c0SJayamohan Kallickal } 45960a3db7c0SJayamohan Kallickal } 45970a3db7c0SJayamohan Kallickal } 45980a3db7c0SJayamohan Kallickal 45996733b39aSJayamohan Kallickal } 46006733b39aSJayamohan Kallickal 4601d629c471SJohn Soni Jose /** 460243f388b0SJayamohan Kallickal * beiscsi_free_mgmt_task_handles()- Free driver CXN resources 460343f388b0SJayamohan Kallickal * @beiscsi_conn: ptr to the conn to be cleaned up 46044a4a11b9SJayamohan Kallickal * @task: ptr to iscsi_task resource to be freed. 460543f388b0SJayamohan Kallickal * 460643f388b0SJayamohan Kallickal * Free driver mgmt resources binded to CXN. 460743f388b0SJayamohan Kallickal **/ 460843f388b0SJayamohan Kallickal void 46094a4a11b9SJayamohan Kallickal beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn, 46104a4a11b9SJayamohan Kallickal struct iscsi_task *task) 461143f388b0SJayamohan Kallickal { 461243f388b0SJayamohan Kallickal struct beiscsi_io_task *io_task; 461343f388b0SJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 461443f388b0SJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 461543f388b0SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 4616a7909b39SJayamohan Kallickal uint16_t cri_index = BE_GET_CRI_FROM_CID( 4617a7909b39SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid); 461843f388b0SJayamohan Kallickal 461943f388b0SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 4620a7909b39SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cri_index]; 4621a7909b39SJayamohan Kallickal 46224a4a11b9SJayamohan Kallickal io_task = task->dd_data; 462343f388b0SJayamohan Kallickal 462443f388b0SJayamohan Kallickal if (io_task->pwrb_handle) { 462543f388b0SJayamohan Kallickal memset(io_task->pwrb_handle->pwrb, 0, 462643f388b0SJayamohan Kallickal sizeof(struct iscsi_wrb)); 462743f388b0SJayamohan Kallickal free_wrb_handle(phba, pwrb_context, 462843f388b0SJayamohan Kallickal io_task->pwrb_handle); 462943f388b0SJayamohan Kallickal io_task->pwrb_handle = NULL; 463043f388b0SJayamohan Kallickal } 463143f388b0SJayamohan Kallickal 463243f388b0SJayamohan Kallickal if (io_task->psgl_handle) { 463343f388b0SJayamohan Kallickal free_mgmt_sgl_handle(phba, 463443f388b0SJayamohan Kallickal io_task->psgl_handle); 463543f388b0SJayamohan Kallickal io_task->psgl_handle = NULL; 463643f388b0SJayamohan Kallickal } 463743f388b0SJayamohan Kallickal 4638eb1c4692SJohn Soni Jose if (io_task->mtask_addr) { 463943f388b0SJayamohan Kallickal pci_unmap_single(phba->pcidev, 464043f388b0SJayamohan Kallickal io_task->mtask_addr, 464143f388b0SJayamohan Kallickal io_task->mtask_data_count, 464243f388b0SJayamohan Kallickal PCI_DMA_TODEVICE); 4643eb1c4692SJohn Soni Jose io_task->mtask_addr = 0; 4644eb1c4692SJohn Soni Jose } 464543f388b0SJayamohan Kallickal } 464643f388b0SJayamohan Kallickal 464743f388b0SJayamohan Kallickal /** 4648d629c471SJohn Soni Jose * beiscsi_cleanup_task()- Free driver resources of the task 4649d629c471SJohn Soni Jose * @task: ptr to the iscsi task 4650d629c471SJohn Soni Jose * 4651d629c471SJohn Soni Jose **/ 46521282ab76SMike Christie static void beiscsi_cleanup_task(struct iscsi_task *task) 46531282ab76SMike Christie { 46541282ab76SMike Christie struct beiscsi_io_task *io_task = task->dd_data; 46551282ab76SMike Christie struct iscsi_conn *conn = task->conn; 46561282ab76SMike Christie struct beiscsi_conn *beiscsi_conn = conn->dd_data; 46571282ab76SMike Christie struct beiscsi_hba *phba = beiscsi_conn->phba; 46581282ab76SMike Christie struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess; 46591282ab76SMike Christie struct hwi_wrb_context *pwrb_context; 46601282ab76SMike Christie struct hwi_controller *phwi_ctrlr; 4661a7909b39SJayamohan Kallickal uint16_t cri_index = BE_GET_CRI_FROM_CID( 4662a7909b39SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid); 46631282ab76SMike Christie 46641282ab76SMike Christie phwi_ctrlr = phba->phwi_ctrlr; 4665a7909b39SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cri_index]; 46661282ab76SMike Christie 46671282ab76SMike Christie if (io_task->cmd_bhs) { 46681282ab76SMike Christie pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs, 46691282ab76SMike Christie io_task->bhs_pa.u.a64.address); 46701282ab76SMike Christie io_task->cmd_bhs = NULL; 46711282ab76SMike Christie } 46721282ab76SMike Christie 46731282ab76SMike Christie if (task->sc) { 46741282ab76SMike Christie if (io_task->pwrb_handle) { 46751282ab76SMike Christie free_wrb_handle(phba, pwrb_context, 46761282ab76SMike Christie io_task->pwrb_handle); 46771282ab76SMike Christie io_task->pwrb_handle = NULL; 46781282ab76SMike Christie } 46791282ab76SMike Christie 46801282ab76SMike Christie if (io_task->psgl_handle) { 46811282ab76SMike Christie free_io_sgl_handle(phba, io_task->psgl_handle); 46821282ab76SMike Christie io_task->psgl_handle = NULL; 46831282ab76SMike Christie } 4684da334977SJayamohan Kallickal 4685da334977SJayamohan Kallickal if (io_task->scsi_cmnd) { 4686da334977SJayamohan Kallickal scsi_dma_unmap(io_task->scsi_cmnd); 4687da334977SJayamohan Kallickal io_task->scsi_cmnd = NULL; 4688da334977SJayamohan Kallickal } 46891282ab76SMike Christie } else { 469043f388b0SJayamohan Kallickal if (!beiscsi_conn->login_in_progress) 46914a4a11b9SJayamohan Kallickal beiscsi_free_mgmt_task_handles(beiscsi_conn, task); 46921282ab76SMike Christie } 46931282ab76SMike Christie } 46941282ab76SMike Christie 46956733b39aSJayamohan Kallickal void 46966733b39aSJayamohan Kallickal beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn, 46976733b39aSJayamohan Kallickal struct beiscsi_offload_params *params) 46986733b39aSJayamohan Kallickal { 46996733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 4700340c99e9SJohn Soni Jose struct hwi_wrb_context *pwrb_context = NULL; 47016733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 47021282ab76SMike Christie struct iscsi_task *task = beiscsi_conn->task; 47031282ab76SMike Christie struct iscsi_session *session = task->conn->session; 47046733b39aSJayamohan Kallickal u32 doorbell = 0; 47056733b39aSJayamohan Kallickal 47066733b39aSJayamohan Kallickal /* 47076733b39aSJayamohan Kallickal * We can always use 0 here because it is reserved by libiscsi for 47086733b39aSJayamohan Kallickal * login/startup related tasks. 47096733b39aSJayamohan Kallickal */ 47101282ab76SMike Christie beiscsi_conn->login_in_progress = 0; 4711659743b0SShlomo Pongratz spin_lock_bh(&session->back_lock); 47121282ab76SMike Christie beiscsi_cleanup_task(task); 4713659743b0SShlomo Pongratz spin_unlock_bh(&session->back_lock); 47141282ab76SMike Christie 4715340c99e9SJohn Soni Jose pwrb_handle = alloc_wrb_handle(phba, beiscsi_conn->beiscsi_conn_cid, 4716340c99e9SJohn Soni Jose &pwrb_context); 47176733b39aSJayamohan Kallickal 4718acb9693cSJohn Soni Jose /* Check for the adapter family */ 47192c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) 4720acb9693cSJohn Soni Jose beiscsi_offload_cxn_v0(params, pwrb_handle, 4721340c99e9SJohn Soni Jose phba->init_mem, 4722340c99e9SJohn Soni Jose pwrb_context); 47232c9dfd36SJayamohan Kallickal else 4724340c99e9SJohn Soni Jose beiscsi_offload_cxn_v2(params, pwrb_handle, 4725340c99e9SJohn Soni Jose pwrb_context); 47266733b39aSJayamohan Kallickal 4727acb9693cSJohn Soni Jose be_dws_le_to_cpu(pwrb_handle->pwrb, 4728acb9693cSJohn Soni Jose sizeof(struct iscsi_target_context_update_wrb)); 47296733b39aSJayamohan Kallickal 47306733b39aSJayamohan Kallickal doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 4731bfead3b2SJayamohan Kallickal doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK) 4732bfead3b2SJayamohan Kallickal << DB_DEF_PDU_WRB_INDEX_SHIFT; 47336733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 47341e4be6ffSJayamohan Kallickal iowrite32(doorbell, phba->db_va + 47351e4be6ffSJayamohan Kallickal beiscsi_conn->doorbell_offset); 4736cb564c6bSJitendra Bhivare 4737cb564c6bSJitendra Bhivare /* 4738cb564c6bSJitendra Bhivare * There is no completion for CONTEXT_UPDATE. The completion of next 4739cb564c6bSJitendra Bhivare * WRB posted guarantees FW's processing and DMA'ing of it. 4740cb564c6bSJitendra Bhivare * Use beiscsi_put_wrb_handle to put it back in the pool which makes 4741cb564c6bSJitendra Bhivare * sure zero'ing or reuse of the WRB only after wrbs_per_cxn. 4742cb564c6bSJitendra Bhivare */ 4743cb564c6bSJitendra Bhivare beiscsi_put_wrb_handle(pwrb_context, pwrb_handle, 4744cb564c6bSJitendra Bhivare phba->params.wrbs_per_cxn); 4745cb564c6bSJitendra Bhivare beiscsi_log(phba, KERN_INFO, 4746cb564c6bSJitendra Bhivare BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 4747cb564c6bSJitendra Bhivare "BM_%d : put CONTEXT_UPDATE pwrb_handle=%p free_index=0x%x wrb_handles_available=%d\n", 4748cb564c6bSJitendra Bhivare pwrb_handle, pwrb_context->free_index, 4749cb564c6bSJitendra Bhivare pwrb_context->wrb_handles_available); 47506733b39aSJayamohan Kallickal } 47516733b39aSJayamohan Kallickal 47526733b39aSJayamohan Kallickal static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt, 47536733b39aSJayamohan Kallickal int *index, int *age) 47546733b39aSJayamohan Kallickal { 4755bfead3b2SJayamohan Kallickal *index = (int)itt; 47566733b39aSJayamohan Kallickal if (age) 47576733b39aSJayamohan Kallickal *age = conn->session->age; 47586733b39aSJayamohan Kallickal } 47596733b39aSJayamohan Kallickal 47606733b39aSJayamohan Kallickal /** 47616733b39aSJayamohan Kallickal * beiscsi_alloc_pdu - allocates pdu and related resources 47626733b39aSJayamohan Kallickal * @task: libiscsi task 47636733b39aSJayamohan Kallickal * @opcode: opcode of pdu for task 47646733b39aSJayamohan Kallickal * 47656733b39aSJayamohan Kallickal * This is called with the session lock held. It will allocate 47666733b39aSJayamohan Kallickal * the wrb and sgl if needed for the command. And it will prep 47676733b39aSJayamohan Kallickal * the pdu's itt. beiscsi_parse_pdu will later translate 47686733b39aSJayamohan Kallickal * the pdu itt to the libiscsi task itt. 47696733b39aSJayamohan Kallickal */ 47706733b39aSJayamohan Kallickal static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 47716733b39aSJayamohan Kallickal { 47726733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 47736733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 47746733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 47756733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 47766733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 47776733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 47786733b39aSJayamohan Kallickal itt_t itt; 4779a7909b39SJayamohan Kallickal uint16_t cri_index = 0; 47802afc95bfSJayamohan Kallickal struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess; 47812afc95bfSJayamohan Kallickal dma_addr_t paddr; 47826733b39aSJayamohan Kallickal 47832afc95bfSJayamohan Kallickal io_task->cmd_bhs = pci_pool_alloc(beiscsi_sess->bhs_pool, 4784bc7accecSMike Christie GFP_ATOMIC, &paddr); 47852afc95bfSJayamohan Kallickal if (!io_task->cmd_bhs) 47862afc95bfSJayamohan Kallickal return -ENOMEM; 47872afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address = paddr; 4788bfead3b2SJayamohan Kallickal io_task->libiscsi_itt = (itt_t)task->itt; 47896733b39aSJayamohan Kallickal io_task->conn = beiscsi_conn; 47906733b39aSJayamohan Kallickal 47916733b39aSJayamohan Kallickal task->hdr = (struct iscsi_hdr *)&io_task->cmd_bhs->iscsi_hdr; 47926733b39aSJayamohan Kallickal task->hdr_max = sizeof(struct be_cmd_bhs); 4793d2cecf0dSJayamohan Kallickal io_task->psgl_handle = NULL; 47943ec78271SJayamohan Kallickal io_task->pwrb_handle = NULL; 47956733b39aSJayamohan Kallickal 47966733b39aSJayamohan Kallickal if (task->sc) { 47976733b39aSJayamohan Kallickal io_task->psgl_handle = alloc_io_sgl_handle(phba); 47988359c79bSJohn Soni Jose if (!io_task->psgl_handle) { 47998359c79bSJohn Soni Jose beiscsi_log(phba, KERN_ERR, 48008359c79bSJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 48018359c79bSJohn Soni Jose "BM_%d : Alloc of IO_SGL_ICD Failed" 48028359c79bSJohn Soni Jose "for the CID : %d\n", 48038359c79bSJohn Soni Jose beiscsi_conn->beiscsi_conn_cid); 48042afc95bfSJayamohan Kallickal goto free_hndls; 48058359c79bSJohn Soni Jose } 4806d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = alloc_wrb_handle(phba, 4807340c99e9SJohn Soni Jose beiscsi_conn->beiscsi_conn_cid, 4808340c99e9SJohn Soni Jose &io_task->pwrb_context); 48098359c79bSJohn Soni Jose if (!io_task->pwrb_handle) { 48108359c79bSJohn Soni Jose beiscsi_log(phba, KERN_ERR, 48118359c79bSJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 48128359c79bSJohn Soni Jose "BM_%d : Alloc of WRB_HANDLE Failed" 48138359c79bSJohn Soni Jose "for the CID : %d\n", 48148359c79bSJohn Soni Jose beiscsi_conn->beiscsi_conn_cid); 4815d2cecf0dSJayamohan Kallickal goto free_io_hndls; 48168359c79bSJohn Soni Jose } 48176733b39aSJayamohan Kallickal } else { 48186733b39aSJayamohan Kallickal io_task->scsi_cmnd = NULL; 4819d7aea67bSJayamohan Kallickal if ((opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) { 482043f388b0SJayamohan Kallickal beiscsi_conn->task = task; 48216733b39aSJayamohan Kallickal if (!beiscsi_conn->login_in_progress) { 48226733b39aSJayamohan Kallickal io_task->psgl_handle = (struct sgl_handle *) 48236733b39aSJayamohan Kallickal alloc_mgmt_sgl_handle(phba); 48248359c79bSJohn Soni Jose if (!io_task->psgl_handle) { 48258359c79bSJohn Soni Jose beiscsi_log(phba, KERN_ERR, 48268359c79bSJohn Soni Jose BEISCSI_LOG_IO | 48278359c79bSJohn Soni Jose BEISCSI_LOG_CONFIG, 48288359c79bSJohn Soni Jose "BM_%d : Alloc of MGMT_SGL_ICD Failed" 48298359c79bSJohn Soni Jose "for the CID : %d\n", 48308359c79bSJohn Soni Jose beiscsi_conn-> 48318359c79bSJohn Soni Jose beiscsi_conn_cid); 48322afc95bfSJayamohan Kallickal goto free_hndls; 48338359c79bSJohn Soni Jose } 48342afc95bfSJayamohan Kallickal 48356733b39aSJayamohan Kallickal beiscsi_conn->login_in_progress = 1; 48366733b39aSJayamohan Kallickal beiscsi_conn->plogin_sgl_handle = 48376733b39aSJayamohan Kallickal io_task->psgl_handle; 4838d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = 4839d2cecf0dSJayamohan Kallickal alloc_wrb_handle(phba, 4840340c99e9SJohn Soni Jose beiscsi_conn->beiscsi_conn_cid, 4841340c99e9SJohn Soni Jose &io_task->pwrb_context); 48428359c79bSJohn Soni Jose if (!io_task->pwrb_handle) { 48438359c79bSJohn Soni Jose beiscsi_log(phba, KERN_ERR, 48448359c79bSJohn Soni Jose BEISCSI_LOG_IO | 48458359c79bSJohn Soni Jose BEISCSI_LOG_CONFIG, 48468359c79bSJohn Soni Jose "BM_%d : Alloc of WRB_HANDLE Failed" 48478359c79bSJohn Soni Jose "for the CID : %d\n", 48488359c79bSJohn Soni Jose beiscsi_conn-> 48498359c79bSJohn Soni Jose beiscsi_conn_cid); 48508359c79bSJohn Soni Jose goto free_mgmt_hndls; 48518359c79bSJohn Soni Jose } 4852d2cecf0dSJayamohan Kallickal beiscsi_conn->plogin_wrb_handle = 4853d2cecf0dSJayamohan Kallickal io_task->pwrb_handle; 4854d2cecf0dSJayamohan Kallickal 48556733b39aSJayamohan Kallickal } else { 48566733b39aSJayamohan Kallickal io_task->psgl_handle = 48576733b39aSJayamohan Kallickal beiscsi_conn->plogin_sgl_handle; 4858d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = 4859d2cecf0dSJayamohan Kallickal beiscsi_conn->plogin_wrb_handle; 48606733b39aSJayamohan Kallickal } 48616733b39aSJayamohan Kallickal } else { 48626733b39aSJayamohan Kallickal io_task->psgl_handle = alloc_mgmt_sgl_handle(phba); 48638359c79bSJohn Soni Jose if (!io_task->psgl_handle) { 48648359c79bSJohn Soni Jose beiscsi_log(phba, KERN_ERR, 48658359c79bSJohn Soni Jose BEISCSI_LOG_IO | 48668359c79bSJohn Soni Jose BEISCSI_LOG_CONFIG, 48678359c79bSJohn Soni Jose "BM_%d : Alloc of MGMT_SGL_ICD Failed" 48688359c79bSJohn Soni Jose "for the CID : %d\n", 48698359c79bSJohn Soni Jose beiscsi_conn-> 48708359c79bSJohn Soni Jose beiscsi_conn_cid); 48712afc95bfSJayamohan Kallickal goto free_hndls; 48728359c79bSJohn Soni Jose } 4873d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = 4874d2cecf0dSJayamohan Kallickal alloc_wrb_handle(phba, 4875340c99e9SJohn Soni Jose beiscsi_conn->beiscsi_conn_cid, 4876340c99e9SJohn Soni Jose &io_task->pwrb_context); 48778359c79bSJohn Soni Jose if (!io_task->pwrb_handle) { 48788359c79bSJohn Soni Jose beiscsi_log(phba, KERN_ERR, 48798359c79bSJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 48808359c79bSJohn Soni Jose "BM_%d : Alloc of WRB_HANDLE Failed" 48818359c79bSJohn Soni Jose "for the CID : %d\n", 48828359c79bSJohn Soni Jose beiscsi_conn->beiscsi_conn_cid); 4883d2cecf0dSJayamohan Kallickal goto free_mgmt_hndls; 48848359c79bSJohn Soni Jose } 4885d2cecf0dSJayamohan Kallickal 48866733b39aSJayamohan Kallickal } 48876733b39aSJayamohan Kallickal } 4888bfead3b2SJayamohan Kallickal itt = (itt_t) cpu_to_be32(((unsigned int)io_task->pwrb_handle-> 4889bfead3b2SJayamohan Kallickal wrb_index << 16) | (unsigned int) 4890bfead3b2SJayamohan Kallickal (io_task->psgl_handle->sgl_index)); 4891bfead3b2SJayamohan Kallickal io_task->pwrb_handle->pio_handle = task; 4892bfead3b2SJayamohan Kallickal 48936733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.itt = itt; 48946733b39aSJayamohan Kallickal return 0; 48952afc95bfSJayamohan Kallickal 4896d2cecf0dSJayamohan Kallickal free_io_hndls: 4897d2cecf0dSJayamohan Kallickal free_io_sgl_handle(phba, io_task->psgl_handle); 4898d2cecf0dSJayamohan Kallickal goto free_hndls; 4899d2cecf0dSJayamohan Kallickal free_mgmt_hndls: 4900d2cecf0dSJayamohan Kallickal free_mgmt_sgl_handle(phba, io_task->psgl_handle); 4901a7909b39SJayamohan Kallickal io_task->psgl_handle = NULL; 49022afc95bfSJayamohan Kallickal free_hndls: 49032afc95bfSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 4904a7909b39SJayamohan Kallickal cri_index = BE_GET_CRI_FROM_CID( 4905a7909b39SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid); 4906a7909b39SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cri_index]; 4907d2cecf0dSJayamohan Kallickal if (io_task->pwrb_handle) 49082afc95bfSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle); 49092afc95bfSJayamohan Kallickal io_task->pwrb_handle = NULL; 49102afc95bfSJayamohan Kallickal pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs, 49112afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address); 49121282ab76SMike Christie io_task->cmd_bhs = NULL; 49132afc95bfSJayamohan Kallickal return -ENOMEM; 49146733b39aSJayamohan Kallickal } 491509a1093aSJohn Soni Jose int beiscsi_iotask_v2(struct iscsi_task *task, struct scatterlist *sg, 491609a1093aSJohn Soni Jose unsigned int num_sg, unsigned int xferlen, 491709a1093aSJohn Soni Jose unsigned int writedir) 491809a1093aSJohn Soni Jose { 491909a1093aSJohn Soni Jose 492009a1093aSJohn Soni Jose struct beiscsi_io_task *io_task = task->dd_data; 492109a1093aSJohn Soni Jose struct iscsi_conn *conn = task->conn; 492209a1093aSJohn Soni Jose struct beiscsi_conn *beiscsi_conn = conn->dd_data; 492309a1093aSJohn Soni Jose struct beiscsi_hba *phba = beiscsi_conn->phba; 492409a1093aSJohn Soni Jose struct iscsi_wrb *pwrb = NULL; 492509a1093aSJohn Soni Jose unsigned int doorbell = 0; 492609a1093aSJohn Soni Jose 492709a1093aSJohn Soni Jose pwrb = io_task->pwrb_handle->pwrb; 492809a1093aSJohn Soni Jose 492909a1093aSJohn Soni Jose io_task->bhs_len = sizeof(struct be_cmd_bhs); 493009a1093aSJohn Soni Jose 493109a1093aSJohn Soni Jose if (writedir) { 493209a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, type, pwrb, 493309a1093aSJohn Soni Jose INI_WR_CMD); 493409a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, dsp, pwrb, 1); 493509a1093aSJohn Soni Jose } else { 493609a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, type, pwrb, 493709a1093aSJohn Soni Jose INI_RD_CMD); 493809a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, dsp, pwrb, 0); 493909a1093aSJohn Soni Jose } 494009a1093aSJohn Soni Jose 494109a1093aSJohn Soni Jose io_task->wrb_type = AMAP_GET_BITS(struct amap_iscsi_wrb_v2, 494209a1093aSJohn Soni Jose type, pwrb); 494309a1093aSJohn Soni Jose 494409a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, lun, pwrb, 494509a1093aSJohn Soni Jose cpu_to_be16(*(unsigned short *) 494609a1093aSJohn Soni Jose &io_task->cmd_bhs->iscsi_hdr.lun)); 494709a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, r2t_exp_dtl, pwrb, xferlen); 494809a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, wrb_idx, pwrb, 494909a1093aSJohn Soni Jose io_task->pwrb_handle->wrb_index); 495009a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, cmdsn_itt, pwrb, 495109a1093aSJohn Soni Jose be32_to_cpu(task->cmdsn)); 495209a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sgl_idx, pwrb, 495309a1093aSJohn Soni Jose io_task->psgl_handle->sgl_index); 495409a1093aSJohn Soni Jose 495509a1093aSJohn Soni Jose hwi_write_sgl_v2(pwrb, sg, num_sg, io_task); 495609a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb, pwrb, 4957340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 4958340c99e9SJohn Soni Jose if (io_task->pwrb_context->plast_wrb) 4959340c99e9SJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb, 4960340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb, 4961340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 4962340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb = pwrb; 496309a1093aSJohn Soni Jose 496409a1093aSJohn Soni Jose be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb)); 496509a1093aSJohn Soni Jose 496609a1093aSJohn Soni Jose doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 496709a1093aSJohn Soni Jose doorbell |= (io_task->pwrb_handle->wrb_index & 496809a1093aSJohn Soni Jose DB_DEF_PDU_WRB_INDEX_MASK) << 496909a1093aSJohn Soni Jose DB_DEF_PDU_WRB_INDEX_SHIFT; 497009a1093aSJohn Soni Jose doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 49711e4be6ffSJayamohan Kallickal iowrite32(doorbell, phba->db_va + 49721e4be6ffSJayamohan Kallickal beiscsi_conn->doorbell_offset); 497309a1093aSJohn Soni Jose return 0; 497409a1093aSJohn Soni Jose } 49756733b39aSJayamohan Kallickal 49766733b39aSJayamohan Kallickal static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg, 49776733b39aSJayamohan Kallickal unsigned int num_sg, unsigned int xferlen, 49786733b39aSJayamohan Kallickal unsigned int writedir) 49796733b39aSJayamohan Kallickal { 49806733b39aSJayamohan Kallickal 49816733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 49826733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 49836733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 49846733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 49856733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 49866733b39aSJayamohan Kallickal unsigned int doorbell = 0; 49876733b39aSJayamohan Kallickal 49886733b39aSJayamohan Kallickal pwrb = io_task->pwrb_handle->pwrb; 49896733b39aSJayamohan Kallickal io_task->bhs_len = sizeof(struct be_cmd_bhs); 49906733b39aSJayamohan Kallickal 49916733b39aSJayamohan Kallickal if (writedir) { 4992bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 4993bfead3b2SJayamohan Kallickal INI_WR_CMD); 49946733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1); 49956733b39aSJayamohan Kallickal } else { 4996bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 4997bfead3b2SJayamohan Kallickal INI_RD_CMD); 49986733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 49996733b39aSJayamohan Kallickal } 50006733b39aSJayamohan Kallickal 500109a1093aSJohn Soni Jose io_task->wrb_type = AMAP_GET_BITS(struct amap_iscsi_wrb, 500209a1093aSJohn Soni Jose type, pwrb); 500309a1093aSJohn Soni Jose 50046733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, lun, pwrb, 5005dc63aac6SJayamohan Kallickal cpu_to_be16(*(unsigned short *) 5006dc63aac6SJayamohan Kallickal &io_task->cmd_bhs->iscsi_hdr.lun)); 50076733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, xferlen); 50086733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb, 50096733b39aSJayamohan Kallickal io_task->pwrb_handle->wrb_index); 50106733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 50116733b39aSJayamohan Kallickal be32_to_cpu(task->cmdsn)); 50126733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb, 50136733b39aSJayamohan Kallickal io_task->psgl_handle->sgl_index); 50146733b39aSJayamohan Kallickal 50156733b39aSJayamohan Kallickal hwi_write_sgl(pwrb, sg, num_sg, io_task); 50166733b39aSJayamohan Kallickal 50176733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb, 5018340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 5019340c99e9SJohn Soni Jose if (io_task->pwrb_context->plast_wrb) 5020340c99e9SJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, 5021340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb, 5022340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 5023340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb = pwrb; 5024340c99e9SJohn Soni Jose 50256733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb)); 50266733b39aSJayamohan Kallickal 50276733b39aSJayamohan Kallickal doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 50286733b39aSJayamohan Kallickal doorbell |= (io_task->pwrb_handle->wrb_index & 50296733b39aSJayamohan Kallickal DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; 50306733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 50316733b39aSJayamohan Kallickal 50321e4be6ffSJayamohan Kallickal iowrite32(doorbell, phba->db_va + 50331e4be6ffSJayamohan Kallickal beiscsi_conn->doorbell_offset); 50346733b39aSJayamohan Kallickal return 0; 50356733b39aSJayamohan Kallickal } 50366733b39aSJayamohan Kallickal 50376733b39aSJayamohan Kallickal static int beiscsi_mtask(struct iscsi_task *task) 50386733b39aSJayamohan Kallickal { 5039dafab8e0SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 50406733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 50416733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 50426733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 50436733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 50446733b39aSJayamohan Kallickal unsigned int doorbell = 0; 5045dafab8e0SJayamohan Kallickal unsigned int cid; 504609a1093aSJohn Soni Jose unsigned int pwrb_typeoffset = 0; 5047e0493627SAlexey Khoroshilov int ret = 0; 50486733b39aSJayamohan Kallickal 5049bfead3b2SJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 50506733b39aSJayamohan Kallickal pwrb = io_task->pwrb_handle->pwrb; 5051caf818f1SJayamohan Kallickal memset(pwrb, 0, sizeof(*pwrb)); 505209a1093aSJohn Soni Jose 50532c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) { 50546733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 50556733b39aSJayamohan Kallickal be32_to_cpu(task->cmdsn)); 50566733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb, 50576733b39aSJayamohan Kallickal io_task->pwrb_handle->wrb_index); 50586733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb, 50596733b39aSJayamohan Kallickal io_task->psgl_handle->sgl_index); 506009a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, 506109a1093aSJohn Soni Jose task->data_count); 506209a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb, 5063340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 5064340c99e9SJohn Soni Jose if (io_task->pwrb_context->plast_wrb) 5065340c99e9SJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, 5066340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb, 5067340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 5068340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb = pwrb; 5069340c99e9SJohn Soni Jose 507009a1093aSJohn Soni Jose pwrb_typeoffset = BE_WRB_TYPE_OFFSET; 50712c9dfd36SJayamohan Kallickal } else { 50722c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, cmdsn_itt, pwrb, 50732c9dfd36SJayamohan Kallickal be32_to_cpu(task->cmdsn)); 50742c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, wrb_idx, pwrb, 50752c9dfd36SJayamohan Kallickal io_task->pwrb_handle->wrb_index); 50762c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sgl_idx, pwrb, 50772c9dfd36SJayamohan Kallickal io_task->psgl_handle->sgl_index); 50782c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, r2t_exp_dtl, pwrb, 50792c9dfd36SJayamohan Kallickal task->data_count); 50802c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb, pwrb, 5081340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 5082340c99e9SJohn Soni Jose if (io_task->pwrb_context->plast_wrb) 5083340c99e9SJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb, 5084340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb, 5085340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 5086340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb = pwrb; 5087340c99e9SJohn Soni Jose 50882c9dfd36SJayamohan Kallickal pwrb_typeoffset = SKH_WRB_TYPE_OFFSET; 508909a1093aSJohn Soni Jose } 509009a1093aSJohn Soni Jose 5091dafab8e0SJayamohan Kallickal 50926733b39aSJayamohan Kallickal switch (task->hdr->opcode & ISCSI_OPCODE_MASK) { 50936733b39aSJayamohan Kallickal case ISCSI_OP_LOGIN: 50946733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 1); 509509a1093aSJohn Soni Jose ADAPTER_SET_WRB_TYPE(pwrb, TGT_DM_CMD, pwrb_typeoffset); 5096e0493627SAlexey Khoroshilov ret = hwi_write_buffer(pwrb, task); 50976733b39aSJayamohan Kallickal break; 50986733b39aSJayamohan Kallickal case ISCSI_OP_NOOP_OUT: 50991390b01bSJayamohan Kallickal if (task->hdr->ttt != ISCSI_RESERVED_TAG) { 510009a1093aSJohn Soni Jose ADAPTER_SET_WRB_TYPE(pwrb, TGT_DM_CMD, pwrb_typeoffset); 51012c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) 51022c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, 510309a1093aSJohn Soni Jose dmsg, pwrb, 1); 510409a1093aSJohn Soni Jose else 51052c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 510609a1093aSJohn Soni Jose dmsg, pwrb, 1); 51071390b01bSJayamohan Kallickal } else { 510809a1093aSJohn Soni Jose ADAPTER_SET_WRB_TYPE(pwrb, INI_RD_CMD, pwrb_typeoffset); 51092c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) 51102c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, 511109a1093aSJohn Soni Jose dmsg, pwrb, 0); 511209a1093aSJohn Soni Jose else 51132c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 511409a1093aSJohn Soni Jose dmsg, pwrb, 0); 51151390b01bSJayamohan Kallickal } 5116e0493627SAlexey Khoroshilov ret = hwi_write_buffer(pwrb, task); 51176733b39aSJayamohan Kallickal break; 51186733b39aSJayamohan Kallickal case ISCSI_OP_TEXT: 511909a1093aSJohn Soni Jose ADAPTER_SET_WRB_TYPE(pwrb, TGT_DM_CMD, pwrb_typeoffset); 5120e0493627SAlexey Khoroshilov ret = hwi_write_buffer(pwrb, task); 51216733b39aSJayamohan Kallickal break; 51226733b39aSJayamohan Kallickal case ISCSI_OP_SCSI_TMFUNC: 512309a1093aSJohn Soni Jose ADAPTER_SET_WRB_TYPE(pwrb, INI_TMF_CMD, pwrb_typeoffset); 5124e0493627SAlexey Khoroshilov ret = hwi_write_buffer(pwrb, task); 51256733b39aSJayamohan Kallickal break; 51266733b39aSJayamohan Kallickal case ISCSI_OP_LOGOUT: 512709a1093aSJohn Soni Jose ADAPTER_SET_WRB_TYPE(pwrb, HWH_TYPE_LOGOUT, pwrb_typeoffset); 5128e0493627SAlexey Khoroshilov ret = hwi_write_buffer(pwrb, task); 51296733b39aSJayamohan Kallickal break; 51306733b39aSJayamohan Kallickal 51316733b39aSJayamohan Kallickal default: 513299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG, 513399bc5d55SJohn Soni Jose "BM_%d : opcode =%d Not supported\n", 51346733b39aSJayamohan Kallickal task->hdr->opcode & ISCSI_OPCODE_MASK); 513599bc5d55SJohn Soni Jose 51366733b39aSJayamohan Kallickal return -EINVAL; 51376733b39aSJayamohan Kallickal } 51386733b39aSJayamohan Kallickal 5139e0493627SAlexey Khoroshilov if (ret) 5140e0493627SAlexey Khoroshilov return ret; 5141e0493627SAlexey Khoroshilov 514209a1093aSJohn Soni Jose /* Set the task type */ 51432c9dfd36SJayamohan Kallickal io_task->wrb_type = (is_chip_be2_be3r(phba)) ? 51442c9dfd36SJayamohan Kallickal AMAP_GET_BITS(struct amap_iscsi_wrb, type, pwrb) : 51452c9dfd36SJayamohan Kallickal AMAP_GET_BITS(struct amap_iscsi_wrb_v2, type, pwrb); 51466733b39aSJayamohan Kallickal 5147bfead3b2SJayamohan Kallickal doorbell |= cid & DB_WRB_POST_CID_MASK; 51486733b39aSJayamohan Kallickal doorbell |= (io_task->pwrb_handle->wrb_index & 51496733b39aSJayamohan Kallickal DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; 51506733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 51511e4be6ffSJayamohan Kallickal iowrite32(doorbell, phba->db_va + 51521e4be6ffSJayamohan Kallickal beiscsi_conn->doorbell_offset); 51536733b39aSJayamohan Kallickal return 0; 51546733b39aSJayamohan Kallickal } 51556733b39aSJayamohan Kallickal 51566733b39aSJayamohan Kallickal static int beiscsi_task_xmit(struct iscsi_task *task) 51576733b39aSJayamohan Kallickal { 51586733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 51596733b39aSJayamohan Kallickal struct scsi_cmnd *sc = task->sc; 51601868379bSJitendra Bhivare struct beiscsi_hba *phba; 51616733b39aSJayamohan Kallickal struct scatterlist *sg; 51626733b39aSJayamohan Kallickal int num_sg; 51636733b39aSJayamohan Kallickal unsigned int writedir = 0, xferlen = 0; 51646733b39aSJayamohan Kallickal 51651868379bSJitendra Bhivare if (!io_task->conn->login_in_progress) 51661868379bSJitendra Bhivare task->hdr->exp_statsn = 0; 516709a1093aSJohn Soni Jose 51686733b39aSJayamohan Kallickal if (!sc) 51696733b39aSJayamohan Kallickal return beiscsi_mtask(task); 51706733b39aSJayamohan Kallickal 51716733b39aSJayamohan Kallickal io_task->scsi_cmnd = sc; 51726733b39aSJayamohan Kallickal num_sg = scsi_dma_map(sc); 51731868379bSJitendra Bhivare phba = io_task->conn->phba; 51746733b39aSJayamohan Kallickal if (num_sg < 0) { 5175afb96058SJayamohan Kallickal beiscsi_log(phba, KERN_ERR, 5176afb96058SJayamohan Kallickal BEISCSI_LOG_IO | BEISCSI_LOG_ISCSI, 5177afb96058SJayamohan Kallickal "BM_%d : scsi_dma_map Failed " 5178afb96058SJayamohan Kallickal "Driver_ITT : 0x%x ITT : 0x%x Xferlen : 0x%x\n", 5179afb96058SJayamohan Kallickal be32_to_cpu(io_task->cmd_bhs->iscsi_hdr.itt), 5180afb96058SJayamohan Kallickal io_task->libiscsi_itt, scsi_bufflen(sc)); 518199bc5d55SJohn Soni Jose 51826733b39aSJayamohan Kallickal return num_sg; 51836733b39aSJayamohan Kallickal } 51846733b39aSJayamohan Kallickal xferlen = scsi_bufflen(sc); 51856733b39aSJayamohan Kallickal sg = scsi_sglist(sc); 518699bc5d55SJohn Soni Jose if (sc->sc_data_direction == DMA_TO_DEVICE) 51876733b39aSJayamohan Kallickal writedir = 1; 518899bc5d55SJohn Soni Jose else 51896733b39aSJayamohan Kallickal writedir = 0; 519099bc5d55SJohn Soni Jose 519109a1093aSJohn Soni Jose return phba->iotask_fn(task, sg, num_sg, xferlen, writedir); 51926733b39aSJayamohan Kallickal } 51936733b39aSJayamohan Kallickal 5194ffce3e2eSJayamohan Kallickal /** 5195ffce3e2eSJayamohan Kallickal * beiscsi_bsg_request - handle bsg request from ISCSI transport 5196ffce3e2eSJayamohan Kallickal * @job: job to handle 5197ffce3e2eSJayamohan Kallickal */ 5198ffce3e2eSJayamohan Kallickal static int beiscsi_bsg_request(struct bsg_job *job) 5199ffce3e2eSJayamohan Kallickal { 5200ffce3e2eSJayamohan Kallickal struct Scsi_Host *shost; 5201ffce3e2eSJayamohan Kallickal struct beiscsi_hba *phba; 5202ffce3e2eSJayamohan Kallickal struct iscsi_bsg_request *bsg_req = job->request; 5203ffce3e2eSJayamohan Kallickal int rc = -EINVAL; 5204ffce3e2eSJayamohan Kallickal unsigned int tag; 5205ffce3e2eSJayamohan Kallickal struct be_dma_mem nonemb_cmd; 5206ffce3e2eSJayamohan Kallickal struct be_cmd_resp_hdr *resp; 5207ffce3e2eSJayamohan Kallickal struct iscsi_bsg_reply *bsg_reply = job->reply; 5208ffce3e2eSJayamohan Kallickal unsigned short status, extd_status; 5209ffce3e2eSJayamohan Kallickal 5210ffce3e2eSJayamohan Kallickal shost = iscsi_job_to_shost(job); 5211ffce3e2eSJayamohan Kallickal phba = iscsi_host_priv(shost); 5212ffce3e2eSJayamohan Kallickal 5213ffce3e2eSJayamohan Kallickal switch (bsg_req->msgcode) { 5214ffce3e2eSJayamohan Kallickal case ISCSI_BSG_HST_VENDOR: 5215ffce3e2eSJayamohan Kallickal nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev, 5216ffce3e2eSJayamohan Kallickal job->request_payload.payload_len, 5217ffce3e2eSJayamohan Kallickal &nonemb_cmd.dma); 5218ffce3e2eSJayamohan Kallickal if (nonemb_cmd.va == NULL) { 521999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG, 522099bc5d55SJohn Soni Jose "BM_%d : Failed to allocate memory for " 5221ffce3e2eSJayamohan Kallickal "beiscsi_bsg_request\n"); 52228359c79bSJohn Soni Jose return -ENOMEM; 5223ffce3e2eSJayamohan Kallickal } 5224ffce3e2eSJayamohan Kallickal tag = mgmt_vendor_specific_fw_cmd(&phba->ctrl, phba, job, 5225ffce3e2eSJayamohan Kallickal &nonemb_cmd); 5226ffce3e2eSJayamohan Kallickal if (!tag) { 522799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG, 52288359c79bSJohn Soni Jose "BM_%d : MBX Tag Allocation Failed\n"); 522999bc5d55SJohn Soni Jose 5230ffce3e2eSJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 5231ffce3e2eSJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 5232ffce3e2eSJayamohan Kallickal return -EAGAIN; 5233e175defeSJohn Soni Jose } 5234e175defeSJohn Soni Jose 5235e175defeSJohn Soni Jose rc = wait_event_interruptible_timeout( 5236e175defeSJohn Soni Jose phba->ctrl.mcc_wait[tag], 523767296ad9SJitendra Bhivare phba->ctrl.mcc_tag_status[tag], 5238e175defeSJohn Soni Jose msecs_to_jiffies( 5239e175defeSJohn Soni Jose BEISCSI_HOST_MBX_TIMEOUT)); 524067296ad9SJitendra Bhivare extd_status = (phba->ctrl.mcc_tag_status[tag] & 524167296ad9SJitendra Bhivare CQE_STATUS_ADDL_MASK) >> CQE_STATUS_ADDL_SHIFT; 524267296ad9SJitendra Bhivare status = phba->ctrl.mcc_tag_status[tag] & CQE_STATUS_MASK; 5243090e2184SJitendra Bhivare free_mcc_wrb(&phba->ctrl, tag); 5244ffce3e2eSJayamohan Kallickal resp = (struct be_cmd_resp_hdr *)nonemb_cmd.va; 5245ffce3e2eSJayamohan Kallickal sg_copy_from_buffer(job->reply_payload.sg_list, 5246ffce3e2eSJayamohan Kallickal job->reply_payload.sg_cnt, 5247ffce3e2eSJayamohan Kallickal nonemb_cmd.va, (resp->response_length 5248ffce3e2eSJayamohan Kallickal + sizeof(*resp))); 5249ffce3e2eSJayamohan Kallickal bsg_reply->reply_payload_rcv_len = resp->response_length; 5250ffce3e2eSJayamohan Kallickal bsg_reply->result = status; 5251ffce3e2eSJayamohan Kallickal bsg_job_done(job, bsg_reply->result, 5252ffce3e2eSJayamohan Kallickal bsg_reply->reply_payload_rcv_len); 5253ffce3e2eSJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 5254ffce3e2eSJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 5255ffce3e2eSJayamohan Kallickal if (status || extd_status) { 525699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG, 52578359c79bSJohn Soni Jose "BM_%d : MBX Cmd Failed" 5258ffce3e2eSJayamohan Kallickal " status = %d extd_status = %d\n", 5259ffce3e2eSJayamohan Kallickal status, extd_status); 526099bc5d55SJohn Soni Jose 5261ffce3e2eSJayamohan Kallickal return -EIO; 52628359c79bSJohn Soni Jose } else { 52638359c79bSJohn Soni Jose rc = 0; 5264ffce3e2eSJayamohan Kallickal } 5265ffce3e2eSJayamohan Kallickal break; 5266ffce3e2eSJayamohan Kallickal 5267ffce3e2eSJayamohan Kallickal default: 526899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG, 526999bc5d55SJohn Soni Jose "BM_%d : Unsupported bsg command: 0x%x\n", 5270ffce3e2eSJayamohan Kallickal bsg_req->msgcode); 5271ffce3e2eSJayamohan Kallickal break; 5272ffce3e2eSJayamohan Kallickal } 5273ffce3e2eSJayamohan Kallickal 5274ffce3e2eSJayamohan Kallickal return rc; 5275ffce3e2eSJayamohan Kallickal } 5276ffce3e2eSJayamohan Kallickal 527799bc5d55SJohn Soni Jose void beiscsi_hba_attrs_init(struct beiscsi_hba *phba) 527899bc5d55SJohn Soni Jose { 527999bc5d55SJohn Soni Jose /* Set the logging parameter */ 528099bc5d55SJohn Soni Jose beiscsi_log_enable_init(phba, beiscsi_log_enable); 528199bc5d55SJohn Soni Jose } 528299bc5d55SJohn Soni Jose 52834d4d1ef8SJohn Soni Jose /* 52844d4d1ef8SJohn Soni Jose * beiscsi_quiesce()- Cleanup Driver resources 52854d4d1ef8SJohn Soni Jose * @phba: Instance Priv structure 52863567f36aSJayamohan Kallickal * @unload_state:i Clean or EEH unload state 52874d4d1ef8SJohn Soni Jose * 52884d4d1ef8SJohn Soni Jose * Free the OS and HW resources held by the driver 52894d4d1ef8SJohn Soni Jose **/ 52903567f36aSJayamohan Kallickal static void beiscsi_quiesce(struct beiscsi_hba *phba, 52913567f36aSJayamohan Kallickal uint32_t unload_state) 52926733b39aSJayamohan Kallickal { 5293bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 5294bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 5295bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 5296bfead3b2SJayamohan Kallickal unsigned int i, msix_vec; 52976733b39aSJayamohan Kallickal 5298bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 5299bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 53006733b39aSJayamohan Kallickal hwi_disable_intr(phba); 5301bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 5302bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) { 5303bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 53043567f36aSJayamohan Kallickal synchronize_irq(msix_vec); 5305bfead3b2SJayamohan Kallickal free_irq(msix_vec, &phwi_context->be_eq[i]); 53068fcfb210SJayamohan Kallickal kfree(phba->msi_name[i]); 5307bfead3b2SJayamohan Kallickal } 5308bfead3b2SJayamohan Kallickal } else 53093567f36aSJayamohan Kallickal if (phba->pcidev->irq) { 53103567f36aSJayamohan Kallickal synchronize_irq(phba->pcidev->irq); 53116733b39aSJayamohan Kallickal free_irq(phba->pcidev->irq, phba); 53123567f36aSJayamohan Kallickal } 5313bfead3b2SJayamohan Kallickal pci_disable_msix(phba->pcidev); 531453281edbSJohn Soni Jose cancel_delayed_work_sync(&phba->beiscsi_hw_check_task); 53153567f36aSJayamohan Kallickal 5316bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 5317bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 5318511cbce2SChristoph Hellwig irq_poll_disable(&pbe_eq->iopoll); 5319bfead3b2SJayamohan Kallickal } 53206733b39aSJayamohan Kallickal 53213567f36aSJayamohan Kallickal if (unload_state == BEISCSI_CLEAN_UNLOAD) { 53223567f36aSJayamohan Kallickal destroy_workqueue(phba->wq); 53236733b39aSJayamohan Kallickal beiscsi_clean_port(phba); 53246733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 5325e9b91193SJayamohan Kallickal 53266733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 53276733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 53286733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.size, 53296733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.va, 53306733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.dma); 53313567f36aSJayamohan Kallickal } else { 53323567f36aSJayamohan Kallickal hwi_purge_eq(phba); 53333567f36aSJayamohan Kallickal hwi_cleanup(phba); 53343567f36aSJayamohan Kallickal } 53357a158003SJohn Soni Jose 533625602c97SJayamohan Kallickal } 533725602c97SJayamohan Kallickal 533825602c97SJayamohan Kallickal static void beiscsi_remove(struct pci_dev *pcidev) 533925602c97SJayamohan Kallickal { 534025602c97SJayamohan Kallickal struct beiscsi_hba *phba = NULL; 534125602c97SJayamohan Kallickal 534225602c97SJayamohan Kallickal phba = pci_get_drvdata(pcidev); 534325602c97SJayamohan Kallickal if (!phba) { 534425602c97SJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_remove called with no phba\n"); 534525602c97SJayamohan Kallickal return; 534625602c97SJayamohan Kallickal } 534725602c97SJayamohan Kallickal 53480e43895eSMike Christie beiscsi_destroy_def_ifaces(phba); 53490b1d3cbfSJayamohan Kallickal iscsi_boot_destroy_kset(phba->boot_kset); 53506733b39aSJayamohan Kallickal iscsi_host_remove(phba->shost); 5351cdaa4dedSJitendra Bhivare beiscsi_quiesce(phba, BEISCSI_CLEAN_UNLOAD); 53526733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 53536733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 53543567f36aSJayamohan Kallickal pci_disable_pcie_error_reporting(pcidev); 53553567f36aSJayamohan Kallickal pci_set_drvdata(pcidev, NULL); 5356e307f3acSJohn Soni Jose pci_release_regions(pcidev); 53578dce69ffSJayamohan Kallickal pci_disable_device(pcidev); 53586733b39aSJayamohan Kallickal } 53596733b39aSJayamohan Kallickal 5360bfead3b2SJayamohan Kallickal static void beiscsi_msix_enable(struct beiscsi_hba *phba) 5361bfead3b2SJayamohan Kallickal { 5362bfead3b2SJayamohan Kallickal int i, status; 5363bfead3b2SJayamohan Kallickal 5364bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) 5365bfead3b2SJayamohan Kallickal phba->msix_entries[i].entry = i; 5366bfead3b2SJayamohan Kallickal 5367e149fc13SAlexander Gordeev status = pci_enable_msix_range(phba->pcidev, phba->msix_entries, 5368e149fc13SAlexander Gordeev phba->num_cpus + 1, phba->num_cpus + 1); 5369e149fc13SAlexander Gordeev if (status > 0) 5370bfead3b2SJayamohan Kallickal phba->msix_enabled = true; 5371bfead3b2SJayamohan Kallickal 5372bfead3b2SJayamohan Kallickal return; 5373bfead3b2SJayamohan Kallickal } 5374bfead3b2SJayamohan Kallickal 537573af08e1SJayamohan Kallickal static void be_eqd_update(struct beiscsi_hba *phba) 537673af08e1SJayamohan Kallickal { 537773af08e1SJayamohan Kallickal struct be_set_eqd set_eqd[MAX_CPUS]; 537873af08e1SJayamohan Kallickal struct be_aic_obj *aic; 537973af08e1SJayamohan Kallickal struct be_eq_obj *pbe_eq; 538073af08e1SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 538173af08e1SJayamohan Kallickal struct hwi_context_memory *phwi_context; 538273af08e1SJayamohan Kallickal int eqd, i, num = 0; 538373af08e1SJayamohan Kallickal ulong now; 538473af08e1SJayamohan Kallickal u32 pps, delta; 538573af08e1SJayamohan Kallickal unsigned int tag; 538673af08e1SJayamohan Kallickal 538773af08e1SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 538873af08e1SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 538973af08e1SJayamohan Kallickal 539073af08e1SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) { 539173af08e1SJayamohan Kallickal aic = &phba->aic_obj[i]; 539273af08e1SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 539373af08e1SJayamohan Kallickal now = jiffies; 539473af08e1SJayamohan Kallickal if (!aic->jiffs || time_before(now, aic->jiffs) || 539573af08e1SJayamohan Kallickal pbe_eq->cq_count < aic->eq_prev) { 539673af08e1SJayamohan Kallickal aic->jiffs = now; 539773af08e1SJayamohan Kallickal aic->eq_prev = pbe_eq->cq_count; 539873af08e1SJayamohan Kallickal continue; 539973af08e1SJayamohan Kallickal } 540073af08e1SJayamohan Kallickal delta = jiffies_to_msecs(now - aic->jiffs); 540173af08e1SJayamohan Kallickal pps = (((u32)(pbe_eq->cq_count - aic->eq_prev) * 1000) / delta); 540273af08e1SJayamohan Kallickal eqd = (pps / 1500) << 2; 540373af08e1SJayamohan Kallickal 540473af08e1SJayamohan Kallickal if (eqd < 8) 540573af08e1SJayamohan Kallickal eqd = 0; 540673af08e1SJayamohan Kallickal eqd = min_t(u32, eqd, phwi_context->max_eqd); 540773af08e1SJayamohan Kallickal eqd = max_t(u32, eqd, phwi_context->min_eqd); 540873af08e1SJayamohan Kallickal 540973af08e1SJayamohan Kallickal aic->jiffs = now; 541073af08e1SJayamohan Kallickal aic->eq_prev = pbe_eq->cq_count; 541173af08e1SJayamohan Kallickal 541273af08e1SJayamohan Kallickal if (eqd != aic->prev_eqd) { 541373af08e1SJayamohan Kallickal set_eqd[num].delay_multiplier = (eqd * 65)/100; 541473af08e1SJayamohan Kallickal set_eqd[num].eq_id = pbe_eq->q.id; 541573af08e1SJayamohan Kallickal aic->prev_eqd = eqd; 541673af08e1SJayamohan Kallickal num++; 541773af08e1SJayamohan Kallickal } 541873af08e1SJayamohan Kallickal } 541973af08e1SJayamohan Kallickal if (num) { 542073af08e1SJayamohan Kallickal tag = be_cmd_modify_eq_delay(phba, set_eqd, num); 542173af08e1SJayamohan Kallickal if (tag) 542288840332SJitendra Bhivare beiscsi_mccq_compl_wait(phba, tag, NULL, NULL); 542373af08e1SJayamohan Kallickal } 542473af08e1SJayamohan Kallickal } 542573af08e1SJayamohan Kallickal 5426a3d313eaSJayamohan Kallickal static void be_check_boot_session(struct beiscsi_hba *phba) 5427a3d313eaSJayamohan Kallickal { 5428a3d313eaSJayamohan Kallickal if (beiscsi_setup_boot_info(phba)) 5429a3d313eaSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 5430a3d313eaSJayamohan Kallickal "BM_%d : Could not set up " 5431a3d313eaSJayamohan Kallickal "iSCSI boot info on async event.\n"); 5432a3d313eaSJayamohan Kallickal } 5433a3d313eaSJayamohan Kallickal 54347a158003SJohn Soni Jose /* 54357a158003SJohn Soni Jose * beiscsi_hw_health_check()- Check adapter health 54367a158003SJohn Soni Jose * @work: work item to check HW health 54377a158003SJohn Soni Jose * 54387a158003SJohn Soni Jose * Check if adapter in an unrecoverable state or not. 54397a158003SJohn Soni Jose **/ 54407a158003SJohn Soni Jose static void 54417a158003SJohn Soni Jose beiscsi_hw_health_check(struct work_struct *work) 54427a158003SJohn Soni Jose { 54437a158003SJohn Soni Jose struct beiscsi_hba *phba = 54447a158003SJohn Soni Jose container_of(work, struct beiscsi_hba, 54457a158003SJohn Soni Jose beiscsi_hw_check_task.work); 54467a158003SJohn Soni Jose 544773af08e1SJayamohan Kallickal be_eqd_update(phba); 544873af08e1SJayamohan Kallickal 5449a3d313eaSJayamohan Kallickal if (phba->state & BE_ADAPTER_CHECK_BOOT) { 54503efde862SJohn Soni Jose if ((phba->get_boot > 0) && (!phba->boot_kset)) { 54513efde862SJohn Soni Jose phba->get_boot--; 54523efde862SJohn Soni Jose if (!(phba->get_boot % BE_GET_BOOT_TO)) 5453a3d313eaSJayamohan Kallickal be_check_boot_session(phba); 54543efde862SJohn Soni Jose } else { 54553efde862SJohn Soni Jose phba->state &= ~BE_ADAPTER_CHECK_BOOT; 54563efde862SJohn Soni Jose phba->get_boot = 0; 54573efde862SJohn Soni Jose } 5458a3d313eaSJayamohan Kallickal } 5459a3d313eaSJayamohan Kallickal 54607a158003SJohn Soni Jose beiscsi_ue_detect(phba); 54617a158003SJohn Soni Jose 54627a158003SJohn Soni Jose schedule_delayed_work(&phba->beiscsi_hw_check_task, 54637a158003SJohn Soni Jose msecs_to_jiffies(1000)); 54647a158003SJohn Soni Jose } 54657a158003SJohn Soni Jose 54663567f36aSJayamohan Kallickal 54673567f36aSJayamohan Kallickal static pci_ers_result_t beiscsi_eeh_err_detected(struct pci_dev *pdev, 54683567f36aSJayamohan Kallickal pci_channel_state_t state) 54693567f36aSJayamohan Kallickal { 54703567f36aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 54713567f36aSJayamohan Kallickal 54723567f36aSJayamohan Kallickal phba = (struct beiscsi_hba *)pci_get_drvdata(pdev); 54733567f36aSJayamohan Kallickal phba->state |= BE_ADAPTER_PCI_ERR; 54743567f36aSJayamohan Kallickal 54753567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 54763567f36aSJayamohan Kallickal "BM_%d : EEH error detected\n"); 54773567f36aSJayamohan Kallickal 54783567f36aSJayamohan Kallickal beiscsi_quiesce(phba, BEISCSI_EEH_UNLOAD); 54793567f36aSJayamohan Kallickal 54803567f36aSJayamohan Kallickal if (state == pci_channel_io_perm_failure) { 54813567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 54823567f36aSJayamohan Kallickal "BM_%d : EEH : State PERM Failure"); 54833567f36aSJayamohan Kallickal return PCI_ERS_RESULT_DISCONNECT; 54843567f36aSJayamohan Kallickal } 54853567f36aSJayamohan Kallickal 54863567f36aSJayamohan Kallickal pci_disable_device(pdev); 54873567f36aSJayamohan Kallickal 54883567f36aSJayamohan Kallickal /* The error could cause the FW to trigger a flash debug dump. 54893567f36aSJayamohan Kallickal * Resetting the card while flash dump is in progress 54903567f36aSJayamohan Kallickal * can cause it not to recover; wait for it to finish. 54913567f36aSJayamohan Kallickal * Wait only for first function as it is needed only once per 54923567f36aSJayamohan Kallickal * adapter. 54933567f36aSJayamohan Kallickal **/ 54943567f36aSJayamohan Kallickal if (pdev->devfn == 0) 54953567f36aSJayamohan Kallickal ssleep(30); 54963567f36aSJayamohan Kallickal 54973567f36aSJayamohan Kallickal return PCI_ERS_RESULT_NEED_RESET; 54983567f36aSJayamohan Kallickal } 54993567f36aSJayamohan Kallickal 55003567f36aSJayamohan Kallickal static pci_ers_result_t beiscsi_eeh_reset(struct pci_dev *pdev) 55013567f36aSJayamohan Kallickal { 55023567f36aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 55033567f36aSJayamohan Kallickal int status = 0; 55043567f36aSJayamohan Kallickal 55053567f36aSJayamohan Kallickal phba = (struct beiscsi_hba *)pci_get_drvdata(pdev); 55063567f36aSJayamohan Kallickal 55073567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 55083567f36aSJayamohan Kallickal "BM_%d : EEH Reset\n"); 55093567f36aSJayamohan Kallickal 55103567f36aSJayamohan Kallickal status = pci_enable_device(pdev); 55113567f36aSJayamohan Kallickal if (status) 55123567f36aSJayamohan Kallickal return PCI_ERS_RESULT_DISCONNECT; 55133567f36aSJayamohan Kallickal 55143567f36aSJayamohan Kallickal pci_set_master(pdev); 55153567f36aSJayamohan Kallickal pci_set_power_state(pdev, PCI_D0); 55163567f36aSJayamohan Kallickal pci_restore_state(pdev); 55173567f36aSJayamohan Kallickal 55183567f36aSJayamohan Kallickal /* Wait for the CHIP Reset to complete */ 55193567f36aSJayamohan Kallickal status = be_chk_reset_complete(phba); 55203567f36aSJayamohan Kallickal if (!status) { 55213567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT, 55223567f36aSJayamohan Kallickal "BM_%d : EEH Reset Completed\n"); 55233567f36aSJayamohan Kallickal } else { 55243567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT, 55253567f36aSJayamohan Kallickal "BM_%d : EEH Reset Completion Failure\n"); 55263567f36aSJayamohan Kallickal return PCI_ERS_RESULT_DISCONNECT; 55273567f36aSJayamohan Kallickal } 55283567f36aSJayamohan Kallickal 55293567f36aSJayamohan Kallickal pci_cleanup_aer_uncorrect_error_status(pdev); 55303567f36aSJayamohan Kallickal return PCI_ERS_RESULT_RECOVERED; 55313567f36aSJayamohan Kallickal } 55323567f36aSJayamohan Kallickal 55333567f36aSJayamohan Kallickal static void beiscsi_eeh_resume(struct pci_dev *pdev) 55343567f36aSJayamohan Kallickal { 55353567f36aSJayamohan Kallickal int ret = 0, i; 55363567f36aSJayamohan Kallickal struct be_eq_obj *pbe_eq; 55373567f36aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 55383567f36aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 55393567f36aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 55403567f36aSJayamohan Kallickal 55413567f36aSJayamohan Kallickal phba = (struct beiscsi_hba *)pci_get_drvdata(pdev); 55423567f36aSJayamohan Kallickal pci_save_state(pdev); 55433567f36aSJayamohan Kallickal 55443567f36aSJayamohan Kallickal if (enable_msix) 55453567f36aSJayamohan Kallickal find_num_cpus(phba); 55463567f36aSJayamohan Kallickal else 55473567f36aSJayamohan Kallickal phba->num_cpus = 1; 55483567f36aSJayamohan Kallickal 55493567f36aSJayamohan Kallickal if (enable_msix) { 55503567f36aSJayamohan Kallickal beiscsi_msix_enable(phba); 55513567f36aSJayamohan Kallickal if (!phba->msix_enabled) 55523567f36aSJayamohan Kallickal phba->num_cpus = 1; 55533567f36aSJayamohan Kallickal } 55543567f36aSJayamohan Kallickal 55553567f36aSJayamohan Kallickal ret = beiscsi_cmd_reset_function(phba); 55563567f36aSJayamohan Kallickal if (ret) { 55573567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 55583567f36aSJayamohan Kallickal "BM_%d : Reset Failed\n"); 55593567f36aSJayamohan Kallickal goto ret_err; 55603567f36aSJayamohan Kallickal } 55613567f36aSJayamohan Kallickal 55623567f36aSJayamohan Kallickal ret = be_chk_reset_complete(phba); 55633567f36aSJayamohan Kallickal if (ret) { 55643567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 55653567f36aSJayamohan Kallickal "BM_%d : Failed to get out of reset.\n"); 55663567f36aSJayamohan Kallickal goto ret_err; 55673567f36aSJayamohan Kallickal } 55683567f36aSJayamohan Kallickal 55693567f36aSJayamohan Kallickal beiscsi_get_params(phba); 55703567f36aSJayamohan Kallickal phba->shost->max_id = phba->params.cxns_per_ctrl; 55713567f36aSJayamohan Kallickal phba->shost->can_queue = phba->params.ios_per_ctrl; 55723567f36aSJayamohan Kallickal ret = hwi_init_controller(phba); 55733567f36aSJayamohan Kallickal 55743567f36aSJayamohan Kallickal for (i = 0; i < MAX_MCC_CMD; i++) { 55753567f36aSJayamohan Kallickal init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]); 55763567f36aSJayamohan Kallickal phba->ctrl.mcc_tag[i] = i + 1; 557767296ad9SJitendra Bhivare phba->ctrl.mcc_tag_status[i + 1] = 0; 55783567f36aSJayamohan Kallickal phba->ctrl.mcc_tag_available++; 55793567f36aSJayamohan Kallickal } 55803567f36aSJayamohan Kallickal 55813567f36aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 55823567f36aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 55833567f36aSJayamohan Kallickal 55843567f36aSJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 55853567f36aSJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 5586511cbce2SChristoph Hellwig irq_poll_init(&pbe_eq->iopoll, be_iopoll_budget, 55873567f36aSJayamohan Kallickal be_iopoll); 55883567f36aSJayamohan Kallickal } 55893567f36aSJayamohan Kallickal 55903567f36aSJayamohan Kallickal i = (phba->msix_enabled) ? i : 0; 55913567f36aSJayamohan Kallickal /* Work item for MCC handling */ 55923567f36aSJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 55933567f36aSJayamohan Kallickal INIT_WORK(&pbe_eq->work_cqs, beiscsi_process_all_cqs); 55943567f36aSJayamohan Kallickal 55953567f36aSJayamohan Kallickal ret = beiscsi_init_irqs(phba); 55963567f36aSJayamohan Kallickal if (ret < 0) { 55973567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 55983567f36aSJayamohan Kallickal "BM_%d : beiscsi_eeh_resume - " 55993567f36aSJayamohan Kallickal "Failed to beiscsi_init_irqs\n"); 56003567f36aSJayamohan Kallickal goto ret_err; 56013567f36aSJayamohan Kallickal } 56023567f36aSJayamohan Kallickal 56033567f36aSJayamohan Kallickal hwi_enable_intr(phba); 56043567f36aSJayamohan Kallickal phba->state &= ~BE_ADAPTER_PCI_ERR; 56053567f36aSJayamohan Kallickal 56063567f36aSJayamohan Kallickal return; 56073567f36aSJayamohan Kallickal ret_err: 56083567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 56093567f36aSJayamohan Kallickal "BM_%d : AER EEH Resume Failed\n"); 56103567f36aSJayamohan Kallickal } 56113567f36aSJayamohan Kallickal 56126f039790SGreg Kroah-Hartman static int beiscsi_dev_probe(struct pci_dev *pcidev, 56136733b39aSJayamohan Kallickal const struct pci_device_id *id) 56146733b39aSJayamohan Kallickal { 56156733b39aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 5616bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 5617bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 5618bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 56193567f36aSJayamohan Kallickal int ret = 0, i; 56206733b39aSJayamohan Kallickal 56216733b39aSJayamohan Kallickal ret = beiscsi_enable_pci(pcidev); 56226733b39aSJayamohan Kallickal if (ret < 0) { 562399bc5d55SJohn Soni Jose dev_err(&pcidev->dev, 562499bc5d55SJohn Soni Jose "beiscsi_dev_probe - Failed to enable pci device\n"); 56256733b39aSJayamohan Kallickal return ret; 56266733b39aSJayamohan Kallickal } 56276733b39aSJayamohan Kallickal 56286733b39aSJayamohan Kallickal phba = beiscsi_hba_alloc(pcidev); 56296733b39aSJayamohan Kallickal if (!phba) { 563099bc5d55SJohn Soni Jose dev_err(&pcidev->dev, 563199bc5d55SJohn Soni Jose "beiscsi_dev_probe - Failed in beiscsi_hba_alloc\n"); 56326733b39aSJayamohan Kallickal goto disable_pci; 56336733b39aSJayamohan Kallickal } 56346733b39aSJayamohan Kallickal 56353567f36aSJayamohan Kallickal /* Enable EEH reporting */ 56363567f36aSJayamohan Kallickal ret = pci_enable_pcie_error_reporting(pcidev); 56373567f36aSJayamohan Kallickal if (ret) 56383567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT, 56393567f36aSJayamohan Kallickal "BM_%d : PCIe Error Reporting " 56403567f36aSJayamohan Kallickal "Enabling Failed\n"); 56413567f36aSJayamohan Kallickal 56423567f36aSJayamohan Kallickal pci_save_state(pcidev); 56433567f36aSJayamohan Kallickal 564499bc5d55SJohn Soni Jose /* Initialize Driver configuration Paramters */ 564599bc5d55SJohn Soni Jose beiscsi_hba_attrs_init(phba); 564699bc5d55SJohn Soni Jose 5647e175defeSJohn Soni Jose phba->fw_timeout = false; 56486c83185aSJayamohan Kallickal phba->mac_addr_set = false; 5649e175defeSJohn Soni Jose 5650e175defeSJohn Soni Jose 5651f98c96b0SJayamohan Kallickal switch (pcidev->device) { 5652f98c96b0SJayamohan Kallickal case BE_DEVICE_ID1: 5653f98c96b0SJayamohan Kallickal case OC_DEVICE_ID1: 5654f98c96b0SJayamohan Kallickal case OC_DEVICE_ID2: 5655f98c96b0SJayamohan Kallickal phba->generation = BE_GEN2; 565609a1093aSJohn Soni Jose phba->iotask_fn = beiscsi_iotask; 5657f98c96b0SJayamohan Kallickal break; 5658f98c96b0SJayamohan Kallickal case BE_DEVICE_ID2: 5659f98c96b0SJayamohan Kallickal case OC_DEVICE_ID3: 5660f98c96b0SJayamohan Kallickal phba->generation = BE_GEN3; 566109a1093aSJohn Soni Jose phba->iotask_fn = beiscsi_iotask; 5662f98c96b0SJayamohan Kallickal break; 5663139a1b1eSJohn Soni Jose case OC_SKH_ID1: 5664139a1b1eSJohn Soni Jose phba->generation = BE_GEN4; 566509a1093aSJohn Soni Jose phba->iotask_fn = beiscsi_iotask_v2; 5666bf9131cbSJayamohan Kallickal break; 5667f98c96b0SJayamohan Kallickal default: 5668f98c96b0SJayamohan Kallickal phba->generation = 0; 5669f98c96b0SJayamohan Kallickal } 5670f98c96b0SJayamohan Kallickal 56716733b39aSJayamohan Kallickal ret = be_ctrl_init(phba, pcidev); 56726733b39aSJayamohan Kallickal if (ret) { 567399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 567499bc5d55SJohn Soni Jose "BM_%d : beiscsi_dev_probe-" 56756733b39aSJayamohan Kallickal "Failed in be_ctrl_init\n"); 56766733b39aSJayamohan Kallickal goto hba_free; 56776733b39aSJayamohan Kallickal } 56786733b39aSJayamohan Kallickal 5679cdaa4dedSJitendra Bhivare /* 5680cdaa4dedSJitendra Bhivare * FUNCTION_RESET should clean up any stale info in FW for this fn 5681cdaa4dedSJitendra Bhivare */ 5682e5285860SJayamohan Kallickal ret = beiscsi_cmd_reset_function(phba); 5683e9b91193SJayamohan Kallickal if (ret) { 568499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 568592665a66SJayamohan Kallickal "BM_%d : Reset Failed\n"); 5686e9b91193SJayamohan Kallickal goto hba_free; 5687e9b91193SJayamohan Kallickal } 5688e9b91193SJayamohan Kallickal ret = be_chk_reset_complete(phba); 5689e9b91193SJayamohan Kallickal if (ret) { 569099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 569192665a66SJayamohan Kallickal "BM_%d : Failed to get out of reset.\n"); 5692e9b91193SJayamohan Kallickal goto hba_free; 5693e9b91193SJayamohan Kallickal } 5694e9b91193SJayamohan Kallickal 56956733b39aSJayamohan Kallickal spin_lock_init(&phba->io_sgl_lock); 56966733b39aSJayamohan Kallickal spin_lock_init(&phba->mgmt_sgl_lock); 56976733b39aSJayamohan Kallickal spin_lock_init(&phba->isr_lock); 56988f09a3b9SJayamohan Kallickal spin_lock_init(&phba->async_pdu_lock); 56997da50879SJayamohan Kallickal ret = mgmt_get_fw_config(&phba->ctrl, phba); 57007da50879SJayamohan Kallickal if (ret != 0) { 570199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 570299bc5d55SJohn Soni Jose "BM_%d : Error getting fw config\n"); 57037da50879SJayamohan Kallickal goto free_port; 57047da50879SJayamohan Kallickal } 570553aefe25SJitendra Bhivare mgmt_get_port_name(&phba->ctrl, phba); 57064570f161SJitendra Bhivare beiscsi_get_params(phba); 570768c26a3aSJayamohan Kallickal 570868c26a3aSJayamohan Kallickal if (enable_msix) 570968c26a3aSJayamohan Kallickal find_num_cpus(phba); 571068c26a3aSJayamohan Kallickal else 571168c26a3aSJayamohan Kallickal phba->num_cpus = 1; 571268c26a3aSJayamohan Kallickal 571368c26a3aSJayamohan Kallickal beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 571468c26a3aSJayamohan Kallickal "BM_%d : num_cpus = %d\n", 571568c26a3aSJayamohan Kallickal phba->num_cpus); 571668c26a3aSJayamohan Kallickal 571768c26a3aSJayamohan Kallickal if (enable_msix) { 571868c26a3aSJayamohan Kallickal beiscsi_msix_enable(phba); 571968c26a3aSJayamohan Kallickal if (!phba->msix_enabled) 572068c26a3aSJayamohan Kallickal phba->num_cpus = 1; 572168c26a3aSJayamohan Kallickal } 572268c26a3aSJayamohan Kallickal 5723843ae752SJayamohan Kallickal phba->shost->max_id = phba->params.cxns_per_ctrl; 5724aa874f07SJayamohan Kallickal phba->shost->can_queue = phba->params.ios_per_ctrl; 57256733b39aSJayamohan Kallickal ret = beiscsi_init_port(phba); 57266733b39aSJayamohan Kallickal if (ret < 0) { 572799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 572899bc5d55SJohn Soni Jose "BM_%d : beiscsi_dev_probe-" 57296733b39aSJayamohan Kallickal "Failed in beiscsi_init_port\n"); 57306733b39aSJayamohan Kallickal goto free_port; 57316733b39aSJayamohan Kallickal } 57326733b39aSJayamohan Kallickal 5733756d29c8SJayamohan Kallickal for (i = 0; i < MAX_MCC_CMD; i++) { 5734756d29c8SJayamohan Kallickal init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]); 5735756d29c8SJayamohan Kallickal phba->ctrl.mcc_tag[i] = i + 1; 573667296ad9SJitendra Bhivare phba->ctrl.mcc_tag_status[i + 1] = 0; 5737756d29c8SJayamohan Kallickal phba->ctrl.mcc_tag_available++; 57381957aa7fSJayamohan Kallickal memset(&phba->ctrl.ptag_state[i].tag_mem_state, 0, 57398fc01eaaSJayamohan Kallickal sizeof(struct be_dma_mem)); 5740756d29c8SJayamohan Kallickal } 5741756d29c8SJayamohan Kallickal 5742756d29c8SJayamohan Kallickal phba->ctrl.mcc_alloc_index = phba->ctrl.mcc_free_index = 0; 5743756d29c8SJayamohan Kallickal 574472fb46a9SJohn Soni Jose snprintf(phba->wq_name, sizeof(phba->wq_name), "beiscsi_%02x_wq", 57456733b39aSJayamohan Kallickal phba->shost->host_no); 5746d8537548SKees Cook phba->wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, phba->wq_name); 57476733b39aSJayamohan Kallickal if (!phba->wq) { 574899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 574999bc5d55SJohn Soni Jose "BM_%d : beiscsi_dev_probe-" 57506733b39aSJayamohan Kallickal "Failed to allocate work queue\n"); 57516733b39aSJayamohan Kallickal goto free_twq; 57526733b39aSJayamohan Kallickal } 57536733b39aSJayamohan Kallickal 57547a158003SJohn Soni Jose INIT_DELAYED_WORK(&phba->beiscsi_hw_check_task, 57557a158003SJohn Soni Jose beiscsi_hw_health_check); 57566733b39aSJayamohan Kallickal 5757bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 5758bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 575972fb46a9SJohn Soni Jose 5760bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 5761bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 5762511cbce2SChristoph Hellwig irq_poll_init(&pbe_eq->iopoll, be_iopoll_budget, 5763bfead3b2SJayamohan Kallickal be_iopoll); 57646733b39aSJayamohan Kallickal } 576572fb46a9SJohn Soni Jose 576672fb46a9SJohn Soni Jose i = (phba->msix_enabled) ? i : 0; 576772fb46a9SJohn Soni Jose /* Work item for MCC handling */ 576872fb46a9SJohn Soni Jose pbe_eq = &phwi_context->be_eq[i]; 576972fb46a9SJohn Soni Jose INIT_WORK(&pbe_eq->work_cqs, beiscsi_process_all_cqs); 577072fb46a9SJohn Soni Jose 57716733b39aSJayamohan Kallickal ret = beiscsi_init_irqs(phba); 57726733b39aSJayamohan Kallickal if (ret < 0) { 577399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 577499bc5d55SJohn Soni Jose "BM_%d : beiscsi_dev_probe-" 57756733b39aSJayamohan Kallickal "Failed to beiscsi_init_irqs\n"); 57766733b39aSJayamohan Kallickal goto free_blkenbld; 57776733b39aSJayamohan Kallickal } 5778238f6b72SJayamohan Kallickal hwi_enable_intr(phba); 5779f457a46fSMike Christie 57800598b8afSJayamohan Kallickal if (iscsi_host_add(phba->shost, &phba->pcidev->dev)) 57810598b8afSJayamohan Kallickal goto free_blkenbld; 57820598b8afSJayamohan Kallickal 5783f457a46fSMike Christie if (beiscsi_setup_boot_info(phba)) 5784f457a46fSMike Christie /* 5785f457a46fSMike Christie * log error but continue, because we may not be using 5786f457a46fSMike Christie * iscsi boot. 5787f457a46fSMike Christie */ 578899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 578999bc5d55SJohn Soni Jose "BM_%d : Could not set up " 57900e43895eSMike Christie "iSCSI boot info.\n"); 5791f457a46fSMike Christie 57920e43895eSMike Christie beiscsi_create_def_ifaces(phba); 57937a158003SJohn Soni Jose schedule_delayed_work(&phba->beiscsi_hw_check_task, 57947a158003SJohn Soni Jose msecs_to_jiffies(1000)); 57957a158003SJohn Soni Jose 579699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 579799bc5d55SJohn Soni Jose "\n\n\n BM_%d : SUCCESS - DRIVER LOADED\n\n\n"); 57986733b39aSJayamohan Kallickal return 0; 57996733b39aSJayamohan Kallickal 58006733b39aSJayamohan Kallickal free_blkenbld: 58016733b39aSJayamohan Kallickal destroy_workqueue(phba->wq); 5802bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 5803bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 5804511cbce2SChristoph Hellwig irq_poll_disable(&pbe_eq->iopoll); 5805bfead3b2SJayamohan Kallickal } 58066733b39aSJayamohan Kallickal free_twq: 58076733b39aSJayamohan Kallickal beiscsi_clean_port(phba); 58086733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 58096733b39aSJayamohan Kallickal free_port: 58106733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 58116733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.size, 58126733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.va, 58136733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.dma); 58146733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 58156733b39aSJayamohan Kallickal hba_free: 5816238f6b72SJayamohan Kallickal if (phba->msix_enabled) 5817238f6b72SJayamohan Kallickal pci_disable_msix(phba->pcidev); 58186733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 58196733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 58202e7cee02SJohn Soni Jose pci_set_drvdata(pcidev, NULL); 58216733b39aSJayamohan Kallickal disable_pci: 5822e307f3acSJohn Soni Jose pci_release_regions(pcidev); 58236733b39aSJayamohan Kallickal pci_disable_device(pcidev); 58246733b39aSJayamohan Kallickal return ret; 58256733b39aSJayamohan Kallickal } 58266733b39aSJayamohan Kallickal 58273567f36aSJayamohan Kallickal static struct pci_error_handlers beiscsi_eeh_handlers = { 58283567f36aSJayamohan Kallickal .error_detected = beiscsi_eeh_err_detected, 58293567f36aSJayamohan Kallickal .slot_reset = beiscsi_eeh_reset, 58303567f36aSJayamohan Kallickal .resume = beiscsi_eeh_resume, 58313567f36aSJayamohan Kallickal }; 58323567f36aSJayamohan Kallickal 58336733b39aSJayamohan Kallickal struct iscsi_transport beiscsi_iscsi_transport = { 58346733b39aSJayamohan Kallickal .owner = THIS_MODULE, 58356733b39aSJayamohan Kallickal .name = DRV_NAME, 58369db0fb3aSJayamohan Kallickal .caps = CAP_RECOVERY_L0 | CAP_HDRDGST | CAP_TEXT_NEGO | 58376733b39aSJayamohan Kallickal CAP_MULTI_R2T | CAP_DATADGST | CAP_DATA_PATH_OFFLOAD, 58386733b39aSJayamohan Kallickal .create_session = beiscsi_session_create, 58396733b39aSJayamohan Kallickal .destroy_session = beiscsi_session_destroy, 58406733b39aSJayamohan Kallickal .create_conn = beiscsi_conn_create, 58416733b39aSJayamohan Kallickal .bind_conn = beiscsi_conn_bind, 58426733b39aSJayamohan Kallickal .destroy_conn = iscsi_conn_teardown, 58433128c6c7SMike Christie .attr_is_visible = be2iscsi_attr_is_visible, 58440e43895eSMike Christie .set_iface_param = be2iscsi_iface_set_param, 58450e43895eSMike Christie .get_iface_param = be2iscsi_iface_get_param, 58466733b39aSJayamohan Kallickal .set_param = beiscsi_set_param, 5847c7f7fd5bSMike Christie .get_conn_param = iscsi_conn_get_param, 58486733b39aSJayamohan Kallickal .get_session_param = iscsi_session_get_param, 58496733b39aSJayamohan Kallickal .get_host_param = beiscsi_get_host_param, 58506733b39aSJayamohan Kallickal .start_conn = beiscsi_conn_start, 5851fa95d206SMike Christie .stop_conn = iscsi_conn_stop, 58526733b39aSJayamohan Kallickal .send_pdu = iscsi_conn_send_pdu, 58536733b39aSJayamohan Kallickal .xmit_task = beiscsi_task_xmit, 58546733b39aSJayamohan Kallickal .cleanup_task = beiscsi_cleanup_task, 58556733b39aSJayamohan Kallickal .alloc_pdu = beiscsi_alloc_pdu, 58566733b39aSJayamohan Kallickal .parse_pdu_itt = beiscsi_parse_pdu, 58576733b39aSJayamohan Kallickal .get_stats = beiscsi_conn_get_stats, 5858c7f7fd5bSMike Christie .get_ep_param = beiscsi_ep_get_param, 58596733b39aSJayamohan Kallickal .ep_connect = beiscsi_ep_connect, 58606733b39aSJayamohan Kallickal .ep_poll = beiscsi_ep_poll, 58616733b39aSJayamohan Kallickal .ep_disconnect = beiscsi_ep_disconnect, 58626733b39aSJayamohan Kallickal .session_recovery_timedout = iscsi_session_recovery_timedout, 5863ffce3e2eSJayamohan Kallickal .bsg_request = beiscsi_bsg_request, 58646733b39aSJayamohan Kallickal }; 58656733b39aSJayamohan Kallickal 58666733b39aSJayamohan Kallickal static struct pci_driver beiscsi_pci_driver = { 58676733b39aSJayamohan Kallickal .name = DRV_NAME, 58686733b39aSJayamohan Kallickal .probe = beiscsi_dev_probe, 58696733b39aSJayamohan Kallickal .remove = beiscsi_remove, 58703567f36aSJayamohan Kallickal .id_table = beiscsi_pci_id_table, 58713567f36aSJayamohan Kallickal .err_handler = &beiscsi_eeh_handlers 58726733b39aSJayamohan Kallickal }; 58736733b39aSJayamohan Kallickal 5874bfead3b2SJayamohan Kallickal 58756733b39aSJayamohan Kallickal static int __init beiscsi_module_init(void) 58766733b39aSJayamohan Kallickal { 58776733b39aSJayamohan Kallickal int ret; 58786733b39aSJayamohan Kallickal 58796733b39aSJayamohan Kallickal beiscsi_scsi_transport = 58806733b39aSJayamohan Kallickal iscsi_register_transport(&beiscsi_iscsi_transport); 58816733b39aSJayamohan Kallickal if (!beiscsi_scsi_transport) { 588299bc5d55SJohn Soni Jose printk(KERN_ERR 588399bc5d55SJohn Soni Jose "beiscsi_module_init - Unable to register beiscsi transport.\n"); 5884f55a24f2SJayamohan Kallickal return -ENOMEM; 58856733b39aSJayamohan Kallickal } 588699bc5d55SJohn Soni Jose printk(KERN_INFO "In beiscsi_module_init, tt=%p\n", 58876733b39aSJayamohan Kallickal &beiscsi_iscsi_transport); 58886733b39aSJayamohan Kallickal 58896733b39aSJayamohan Kallickal ret = pci_register_driver(&beiscsi_pci_driver); 58906733b39aSJayamohan Kallickal if (ret) { 589199bc5d55SJohn Soni Jose printk(KERN_ERR 589299bc5d55SJohn Soni Jose "beiscsi_module_init - Unable to register beiscsi pci driver.\n"); 58936733b39aSJayamohan Kallickal goto unregister_iscsi_transport; 58946733b39aSJayamohan Kallickal } 58956733b39aSJayamohan Kallickal return 0; 58966733b39aSJayamohan Kallickal 58976733b39aSJayamohan Kallickal unregister_iscsi_transport: 58986733b39aSJayamohan Kallickal iscsi_unregister_transport(&beiscsi_iscsi_transport); 58996733b39aSJayamohan Kallickal return ret; 59006733b39aSJayamohan Kallickal } 59016733b39aSJayamohan Kallickal 59026733b39aSJayamohan Kallickal static void __exit beiscsi_module_exit(void) 59036733b39aSJayamohan Kallickal { 59046733b39aSJayamohan Kallickal pci_unregister_driver(&beiscsi_pci_driver); 59056733b39aSJayamohan Kallickal iscsi_unregister_transport(&beiscsi_iscsi_transport); 59066733b39aSJayamohan Kallickal } 59076733b39aSJayamohan Kallickal 59086733b39aSJayamohan Kallickal module_init(beiscsi_module_init); 59096733b39aSJayamohan Kallickal module_exit(beiscsi_module_exit); 5910