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> 326733b39aSJayamohan Kallickal 336733b39aSJayamohan Kallickal #include <scsi/libiscsi.h> 34ffce3e2eSJayamohan Kallickal #include <scsi/scsi_bsg_iscsi.h> 35ffce3e2eSJayamohan Kallickal #include <scsi/scsi_netlink.h> 366733b39aSJayamohan Kallickal #include <scsi/scsi_transport_iscsi.h> 376733b39aSJayamohan Kallickal #include <scsi/scsi_transport.h> 386733b39aSJayamohan Kallickal #include <scsi/scsi_cmnd.h> 396733b39aSJayamohan Kallickal #include <scsi/scsi_device.h> 406733b39aSJayamohan Kallickal #include <scsi/scsi_host.h> 416733b39aSJayamohan Kallickal #include <scsi/scsi.h> 426733b39aSJayamohan Kallickal #include "be_main.h" 436733b39aSJayamohan Kallickal #include "be_iscsi.h" 446733b39aSJayamohan Kallickal #include "be_mgmt.h" 450a513dd8SJohn Soni Jose #include "be_cmds.h" 466733b39aSJayamohan Kallickal 476733b39aSJayamohan Kallickal static unsigned int be_iopoll_budget = 10; 486733b39aSJayamohan Kallickal static unsigned int be_max_phys_size = 64; 49bfead3b2SJayamohan Kallickal static unsigned int enable_msix = 1; 506733b39aSJayamohan Kallickal 516733b39aSJayamohan Kallickal MODULE_DESCRIPTION(DRV_DESC " " BUILD_STR); 5276d15dbdSJayamohan Kallickal MODULE_VERSION(BUILD_STR); 53c4f39bdaSKetan Mukadam MODULE_AUTHOR("Emulex Corporation"); 546733b39aSJayamohan Kallickal MODULE_LICENSE("GPL"); 556733b39aSJayamohan Kallickal module_param(be_iopoll_budget, int, 0); 566733b39aSJayamohan Kallickal module_param(enable_msix, int, 0); 576733b39aSJayamohan Kallickal module_param(be_max_phys_size, uint, S_IRUGO); 5899bc5d55SJohn Soni Jose MODULE_PARM_DESC(be_max_phys_size, 5999bc5d55SJohn Soni Jose "Maximum Size (In Kilobytes) of physically contiguous " 6099bc5d55SJohn Soni Jose "memory that can be allocated. Range is 16 - 128"); 6199bc5d55SJohn Soni Jose 6299bc5d55SJohn Soni Jose #define beiscsi_disp_param(_name)\ 6399bc5d55SJohn Soni Jose ssize_t \ 6499bc5d55SJohn Soni Jose beiscsi_##_name##_disp(struct device *dev,\ 6599bc5d55SJohn Soni Jose struct device_attribute *attrib, char *buf) \ 6699bc5d55SJohn Soni Jose { \ 6799bc5d55SJohn Soni Jose struct Scsi_Host *shost = class_to_shost(dev);\ 6899bc5d55SJohn Soni Jose struct beiscsi_hba *phba = iscsi_host_priv(shost); \ 6999bc5d55SJohn Soni Jose uint32_t param_val = 0; \ 7099bc5d55SJohn Soni Jose param_val = phba->attr_##_name;\ 7199bc5d55SJohn Soni Jose return snprintf(buf, PAGE_SIZE, "%d\n",\ 7299bc5d55SJohn Soni Jose phba->attr_##_name);\ 7399bc5d55SJohn Soni Jose } 7499bc5d55SJohn Soni Jose 7599bc5d55SJohn Soni Jose #define beiscsi_change_param(_name, _minval, _maxval, _defaval)\ 7699bc5d55SJohn Soni Jose int \ 7799bc5d55SJohn Soni Jose beiscsi_##_name##_change(struct beiscsi_hba *phba, uint32_t val)\ 7899bc5d55SJohn Soni Jose {\ 7999bc5d55SJohn Soni Jose if (val >= _minval && val <= _maxval) {\ 8099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,\ 8199bc5d55SJohn Soni Jose "BA_%d : beiscsi_"#_name" updated "\ 8299bc5d55SJohn Soni Jose "from 0x%x ==> 0x%x\n",\ 8399bc5d55SJohn Soni Jose phba->attr_##_name, val); \ 8499bc5d55SJohn Soni Jose phba->attr_##_name = val;\ 8599bc5d55SJohn Soni Jose return 0;\ 8699bc5d55SJohn Soni Jose } \ 8799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, \ 8899bc5d55SJohn Soni Jose "BA_%d beiscsi_"#_name" attribute "\ 8999bc5d55SJohn Soni Jose "cannot be updated to 0x%x, "\ 9099bc5d55SJohn Soni Jose "range allowed is ["#_minval" - "#_maxval"]\n", val);\ 9199bc5d55SJohn Soni Jose return -EINVAL;\ 9299bc5d55SJohn Soni Jose } 9399bc5d55SJohn Soni Jose 9499bc5d55SJohn Soni Jose #define beiscsi_store_param(_name) \ 9599bc5d55SJohn Soni Jose ssize_t \ 9699bc5d55SJohn Soni Jose beiscsi_##_name##_store(struct device *dev,\ 9799bc5d55SJohn Soni Jose struct device_attribute *attr, const char *buf,\ 9899bc5d55SJohn Soni Jose size_t count) \ 9999bc5d55SJohn Soni Jose { \ 10099bc5d55SJohn Soni Jose struct Scsi_Host *shost = class_to_shost(dev);\ 10199bc5d55SJohn Soni Jose struct beiscsi_hba *phba = iscsi_host_priv(shost);\ 10299bc5d55SJohn Soni Jose uint32_t param_val = 0;\ 10399bc5d55SJohn Soni Jose if (!isdigit(buf[0]))\ 10499bc5d55SJohn Soni Jose return -EINVAL;\ 10599bc5d55SJohn Soni Jose if (sscanf(buf, "%i", ¶m_val) != 1)\ 10699bc5d55SJohn Soni Jose return -EINVAL;\ 10799bc5d55SJohn Soni Jose if (beiscsi_##_name##_change(phba, param_val) == 0) \ 10899bc5d55SJohn Soni Jose return strlen(buf);\ 10999bc5d55SJohn Soni Jose else \ 11099bc5d55SJohn Soni Jose return -EINVAL;\ 11199bc5d55SJohn Soni Jose } 11299bc5d55SJohn Soni Jose 11399bc5d55SJohn Soni Jose #define beiscsi_init_param(_name, _minval, _maxval, _defval) \ 11499bc5d55SJohn Soni Jose int \ 11599bc5d55SJohn Soni Jose beiscsi_##_name##_init(struct beiscsi_hba *phba, uint32_t val) \ 11699bc5d55SJohn Soni Jose { \ 11799bc5d55SJohn Soni Jose if (val >= _minval && val <= _maxval) {\ 11899bc5d55SJohn Soni Jose phba->attr_##_name = val;\ 11999bc5d55SJohn Soni Jose return 0;\ 12099bc5d55SJohn Soni Jose } \ 12199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,\ 12299bc5d55SJohn Soni Jose "BA_%d beiscsi_"#_name" attribute " \ 12399bc5d55SJohn Soni Jose "cannot be updated to 0x%x, "\ 12499bc5d55SJohn Soni Jose "range allowed is ["#_minval" - "#_maxval"]\n", val);\ 12599bc5d55SJohn Soni Jose phba->attr_##_name = _defval;\ 12699bc5d55SJohn Soni Jose return -EINVAL;\ 12799bc5d55SJohn Soni Jose } 12899bc5d55SJohn Soni Jose 12999bc5d55SJohn Soni Jose #define BEISCSI_RW_ATTR(_name, _minval, _maxval, _defval, _descp) \ 13099bc5d55SJohn Soni Jose static uint beiscsi_##_name = _defval;\ 13199bc5d55SJohn Soni Jose module_param(beiscsi_##_name, uint, S_IRUGO);\ 13299bc5d55SJohn Soni Jose MODULE_PARM_DESC(beiscsi_##_name, _descp);\ 13399bc5d55SJohn Soni Jose beiscsi_disp_param(_name)\ 13499bc5d55SJohn Soni Jose beiscsi_change_param(_name, _minval, _maxval, _defval)\ 13599bc5d55SJohn Soni Jose beiscsi_store_param(_name)\ 13699bc5d55SJohn Soni Jose beiscsi_init_param(_name, _minval, _maxval, _defval)\ 13799bc5d55SJohn Soni Jose DEVICE_ATTR(beiscsi_##_name, S_IRUGO | S_IWUSR,\ 13899bc5d55SJohn Soni Jose beiscsi_##_name##_disp, beiscsi_##_name##_store) 13999bc5d55SJohn Soni Jose 14099bc5d55SJohn Soni Jose /* 14199bc5d55SJohn Soni Jose * When new log level added update the 14299bc5d55SJohn Soni Jose * the MAX allowed value for log_enable 14399bc5d55SJohn Soni Jose */ 14499bc5d55SJohn Soni Jose BEISCSI_RW_ATTR(log_enable, 0x00, 14599bc5d55SJohn Soni Jose 0xFF, 0x00, "Enable logging Bit Mask\n" 14699bc5d55SJohn Soni Jose "\t\t\t\tInitialization Events : 0x01\n" 14799bc5d55SJohn Soni Jose "\t\t\t\tMailbox Events : 0x02\n" 14899bc5d55SJohn Soni Jose "\t\t\t\tMiscellaneous Events : 0x04\n" 14999bc5d55SJohn Soni Jose "\t\t\t\tError Handling : 0x08\n" 15099bc5d55SJohn Soni Jose "\t\t\t\tIO Path Events : 0x10\n" 151afb96058SJayamohan Kallickal "\t\t\t\tConfiguration Path : 0x20\n" 152afb96058SJayamohan Kallickal "\t\t\t\tiSCSI Protocol : 0x40\n"); 15399bc5d55SJohn Soni Jose 1545cac7596SJohn Soni Jose DEVICE_ATTR(beiscsi_drvr_ver, S_IRUGO, beiscsi_drvr_ver_disp, NULL); 15526000db7SJohn Soni Jose DEVICE_ATTR(beiscsi_adapter_family, S_IRUGO, beiscsi_adap_family_disp, NULL); 15622661e25SJayamohan Kallickal DEVICE_ATTR(beiscsi_fw_ver, S_IRUGO, beiscsi_fw_ver_disp, NULL); 157d3fea9afSJayamohan Kallickal DEVICE_ATTR(beiscsi_phys_port, S_IRUGO, beiscsi_phys_port_disp, NULL); 1586103c1f7SJayamohan Kallickal DEVICE_ATTR(beiscsi_active_session_count, S_IRUGO, 1596103c1f7SJayamohan Kallickal beiscsi_active_session_disp, NULL); 1606103c1f7SJayamohan Kallickal DEVICE_ATTR(beiscsi_free_session_count, S_IRUGO, 1616103c1f7SJayamohan Kallickal beiscsi_free_session_disp, NULL); 16299bc5d55SJohn Soni Jose struct device_attribute *beiscsi_attrs[] = { 16399bc5d55SJohn Soni Jose &dev_attr_beiscsi_log_enable, 1645cac7596SJohn Soni Jose &dev_attr_beiscsi_drvr_ver, 16526000db7SJohn Soni Jose &dev_attr_beiscsi_adapter_family, 16622661e25SJayamohan Kallickal &dev_attr_beiscsi_fw_ver, 1676103c1f7SJayamohan Kallickal &dev_attr_beiscsi_active_session_count, 1686103c1f7SJayamohan Kallickal &dev_attr_beiscsi_free_session_count, 169d3fea9afSJayamohan Kallickal &dev_attr_beiscsi_phys_port, 17099bc5d55SJohn Soni Jose NULL, 17199bc5d55SJohn Soni Jose }; 1726733b39aSJayamohan Kallickal 1736763daaeSJohn Soni Jose static char const *cqe_desc[] = { 1746763daaeSJohn Soni Jose "RESERVED_DESC", 1756763daaeSJohn Soni Jose "SOL_CMD_COMPLETE", 1766763daaeSJohn Soni Jose "SOL_CMD_KILLED_DATA_DIGEST_ERR", 1776763daaeSJohn Soni Jose "CXN_KILLED_PDU_SIZE_EXCEEDS_DSL", 1786763daaeSJohn Soni Jose "CXN_KILLED_BURST_LEN_MISMATCH", 1796763daaeSJohn Soni Jose "CXN_KILLED_AHS_RCVD", 1806763daaeSJohn Soni Jose "CXN_KILLED_HDR_DIGEST_ERR", 1816763daaeSJohn Soni Jose "CXN_KILLED_UNKNOWN_HDR", 1826763daaeSJohn Soni Jose "CXN_KILLED_STALE_ITT_TTT_RCVD", 1836763daaeSJohn Soni Jose "CXN_KILLED_INVALID_ITT_TTT_RCVD", 1846763daaeSJohn Soni Jose "CXN_KILLED_RST_RCVD", 1856763daaeSJohn Soni Jose "CXN_KILLED_TIMED_OUT", 1866763daaeSJohn Soni Jose "CXN_KILLED_RST_SENT", 1876763daaeSJohn Soni Jose "CXN_KILLED_FIN_RCVD", 1886763daaeSJohn Soni Jose "CXN_KILLED_BAD_UNSOL_PDU_RCVD", 1896763daaeSJohn Soni Jose "CXN_KILLED_BAD_WRB_INDEX_ERROR", 1906763daaeSJohn Soni Jose "CXN_KILLED_OVER_RUN_RESIDUAL", 1916763daaeSJohn Soni Jose "CXN_KILLED_UNDER_RUN_RESIDUAL", 1926763daaeSJohn Soni Jose "CMD_KILLED_INVALID_STATSN_RCVD", 1936763daaeSJohn Soni Jose "CMD_KILLED_INVALID_R2T_RCVD", 1946763daaeSJohn Soni Jose "CMD_CXN_KILLED_LUN_INVALID", 1956763daaeSJohn Soni Jose "CMD_CXN_KILLED_ICD_INVALID", 1966763daaeSJohn Soni Jose "CMD_CXN_KILLED_ITT_INVALID", 1976763daaeSJohn Soni Jose "CMD_CXN_KILLED_SEQ_OUTOFORDER", 1986763daaeSJohn Soni Jose "CMD_CXN_KILLED_INVALID_DATASN_RCVD", 1996763daaeSJohn Soni Jose "CXN_INVALIDATE_NOTIFY", 2006763daaeSJohn Soni Jose "CXN_INVALIDATE_INDEX_NOTIFY", 2016763daaeSJohn Soni Jose "CMD_INVALIDATED_NOTIFY", 2026763daaeSJohn Soni Jose "UNSOL_HDR_NOTIFY", 2036763daaeSJohn Soni Jose "UNSOL_DATA_NOTIFY", 2046763daaeSJohn Soni Jose "UNSOL_DATA_DIGEST_ERROR_NOTIFY", 2056763daaeSJohn Soni Jose "DRIVERMSG_NOTIFY", 2066763daaeSJohn Soni Jose "CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN", 2076763daaeSJohn Soni Jose "SOL_CMD_KILLED_DIF_ERR", 2086763daaeSJohn Soni Jose "CXN_KILLED_SYN_RCVD", 2096763daaeSJohn Soni Jose "CXN_KILLED_IMM_DATA_RCVD" 2106763daaeSJohn Soni Jose }; 2116763daaeSJohn Soni Jose 2126733b39aSJayamohan Kallickal static int beiscsi_slave_configure(struct scsi_device *sdev) 2136733b39aSJayamohan Kallickal { 2146733b39aSJayamohan Kallickal blk_queue_max_segment_size(sdev->request_queue, 65536); 2156733b39aSJayamohan Kallickal return 0; 2166733b39aSJayamohan Kallickal } 2176733b39aSJayamohan Kallickal 2184183122dSJayamohan Kallickal static int beiscsi_eh_abort(struct scsi_cmnd *sc) 2194183122dSJayamohan Kallickal { 2204183122dSJayamohan Kallickal struct iscsi_cls_session *cls_session; 2214183122dSJayamohan Kallickal struct iscsi_task *aborted_task = (struct iscsi_task *)sc->SCp.ptr; 2224183122dSJayamohan Kallickal struct beiscsi_io_task *aborted_io_task; 2234183122dSJayamohan Kallickal struct iscsi_conn *conn; 2244183122dSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 2254183122dSJayamohan Kallickal struct beiscsi_hba *phba; 2264183122dSJayamohan Kallickal struct iscsi_session *session; 2274183122dSJayamohan Kallickal struct invalidate_command_table *inv_tbl; 2283cbb7a74SJayamohan Kallickal struct be_dma_mem nonemb_cmd; 2294183122dSJayamohan Kallickal unsigned int cid, tag, num_invalidate; 2301957aa7fSJayamohan Kallickal int rc; 2314183122dSJayamohan Kallickal 2324183122dSJayamohan Kallickal cls_session = starget_to_session(scsi_target(sc->device)); 2334183122dSJayamohan Kallickal session = cls_session->dd_data; 2344183122dSJayamohan Kallickal 235659743b0SShlomo Pongratz spin_lock_bh(&session->frwd_lock); 2364183122dSJayamohan Kallickal if (!aborted_task || !aborted_task->sc) { 2374183122dSJayamohan Kallickal /* we raced */ 238659743b0SShlomo Pongratz spin_unlock_bh(&session->frwd_lock); 2394183122dSJayamohan Kallickal return SUCCESS; 2404183122dSJayamohan Kallickal } 2414183122dSJayamohan Kallickal 2424183122dSJayamohan Kallickal aborted_io_task = aborted_task->dd_data; 2434183122dSJayamohan Kallickal if (!aborted_io_task->scsi_cmnd) { 2444183122dSJayamohan Kallickal /* raced or invalid command */ 245659743b0SShlomo Pongratz spin_unlock_bh(&session->frwd_lock); 2464183122dSJayamohan Kallickal return SUCCESS; 2474183122dSJayamohan Kallickal } 248659743b0SShlomo Pongratz spin_unlock_bh(&session->frwd_lock); 2497626c06bSJayamohan Kallickal /* Invalidate WRB Posted for this Task */ 2507626c06bSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, invld, 2517626c06bSJayamohan Kallickal aborted_io_task->pwrb_handle->pwrb, 2527626c06bSJayamohan Kallickal 1); 2537626c06bSJayamohan Kallickal 2544183122dSJayamohan Kallickal conn = aborted_task->conn; 2554183122dSJayamohan Kallickal beiscsi_conn = conn->dd_data; 2564183122dSJayamohan Kallickal phba = beiscsi_conn->phba; 2574183122dSJayamohan Kallickal 2584183122dSJayamohan Kallickal /* invalidate iocb */ 2594183122dSJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 2604183122dSJayamohan Kallickal inv_tbl = phba->inv_tbl; 2614183122dSJayamohan Kallickal memset(inv_tbl, 0x0, sizeof(*inv_tbl)); 2624183122dSJayamohan Kallickal inv_tbl->cid = cid; 2634183122dSJayamohan Kallickal inv_tbl->icd = aborted_io_task->psgl_handle->sgl_index; 2644183122dSJayamohan Kallickal num_invalidate = 1; 2653cbb7a74SJayamohan Kallickal nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev, 2663cbb7a74SJayamohan Kallickal sizeof(struct invalidate_commands_params_in), 2673cbb7a74SJayamohan Kallickal &nonemb_cmd.dma); 2683cbb7a74SJayamohan Kallickal if (nonemb_cmd.va == NULL) { 26999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH, 27099bc5d55SJohn Soni Jose "BM_%d : Failed to allocate memory for" 2713cbb7a74SJayamohan Kallickal "mgmt_invalidate_icds\n"); 2723cbb7a74SJayamohan Kallickal return FAILED; 2733cbb7a74SJayamohan Kallickal } 2743cbb7a74SJayamohan Kallickal nonemb_cmd.size = sizeof(struct invalidate_commands_params_in); 2753cbb7a74SJayamohan Kallickal 2763cbb7a74SJayamohan Kallickal tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, 2773cbb7a74SJayamohan Kallickal cid, &nonemb_cmd); 2784183122dSJayamohan Kallickal if (!tag) { 27999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_EH, 28099bc5d55SJohn Soni Jose "BM_%d : mgmt_invalidate_icds could not be" 2814183122dSJayamohan Kallickal "submitted\n"); 2823cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 2833cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 2843cbb7a74SJayamohan Kallickal 2854183122dSJayamohan Kallickal return FAILED; 2864183122dSJayamohan Kallickal } 287e175defeSJohn Soni Jose 2881957aa7fSJayamohan Kallickal rc = beiscsi_mccq_compl(phba, tag, NULL, &nonemb_cmd); 2891957aa7fSJayamohan Kallickal if (rc != -EBUSY) 2903cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 2913cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 2921957aa7fSJayamohan Kallickal 2934183122dSJayamohan Kallickal return iscsi_eh_abort(sc); 2944183122dSJayamohan Kallickal } 2954183122dSJayamohan Kallickal 2964183122dSJayamohan Kallickal static int beiscsi_eh_device_reset(struct scsi_cmnd *sc) 2974183122dSJayamohan Kallickal { 2984183122dSJayamohan Kallickal struct iscsi_task *abrt_task; 2994183122dSJayamohan Kallickal struct beiscsi_io_task *abrt_io_task; 3004183122dSJayamohan Kallickal struct iscsi_conn *conn; 3014183122dSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 3024183122dSJayamohan Kallickal struct beiscsi_hba *phba; 3034183122dSJayamohan Kallickal struct iscsi_session *session; 3044183122dSJayamohan Kallickal struct iscsi_cls_session *cls_session; 3054183122dSJayamohan Kallickal struct invalidate_command_table *inv_tbl; 3063cbb7a74SJayamohan Kallickal struct be_dma_mem nonemb_cmd; 3074183122dSJayamohan Kallickal unsigned int cid, tag, i, num_invalidate; 3081957aa7fSJayamohan Kallickal int rc; 3094183122dSJayamohan Kallickal 3104183122dSJayamohan Kallickal /* invalidate iocbs */ 3114183122dSJayamohan Kallickal cls_session = starget_to_session(scsi_target(sc->device)); 3124183122dSJayamohan Kallickal session = cls_session->dd_data; 313659743b0SShlomo Pongratz spin_lock_bh(&session->frwd_lock); 314db7f7709SJayamohan Kallickal if (!session->leadconn || session->state != ISCSI_STATE_LOGGED_IN) { 315659743b0SShlomo Pongratz spin_unlock_bh(&session->frwd_lock); 316db7f7709SJayamohan Kallickal return FAILED; 317db7f7709SJayamohan Kallickal } 3184183122dSJayamohan Kallickal conn = session->leadconn; 3194183122dSJayamohan Kallickal beiscsi_conn = conn->dd_data; 3204183122dSJayamohan Kallickal phba = beiscsi_conn->phba; 3214183122dSJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 3224183122dSJayamohan Kallickal inv_tbl = phba->inv_tbl; 3234183122dSJayamohan Kallickal memset(inv_tbl, 0x0, sizeof(*inv_tbl) * BE2_CMDS_PER_CXN); 3244183122dSJayamohan Kallickal num_invalidate = 0; 3254183122dSJayamohan Kallickal for (i = 0; i < conn->session->cmds_max; i++) { 3264183122dSJayamohan Kallickal abrt_task = conn->session->cmds[i]; 3274183122dSJayamohan Kallickal abrt_io_task = abrt_task->dd_data; 3284183122dSJayamohan Kallickal if (!abrt_task->sc || abrt_task->state == ISCSI_TASK_FREE) 3294183122dSJayamohan Kallickal continue; 3304183122dSJayamohan Kallickal 331126e964aSMike Christie if (sc->device->lun != abrt_task->sc->device->lun) 3324183122dSJayamohan Kallickal continue; 3334183122dSJayamohan Kallickal 3347626c06bSJayamohan Kallickal /* Invalidate WRB Posted for this Task */ 3357626c06bSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, invld, 3367626c06bSJayamohan Kallickal abrt_io_task->pwrb_handle->pwrb, 3377626c06bSJayamohan Kallickal 1); 3387626c06bSJayamohan Kallickal 3394183122dSJayamohan Kallickal inv_tbl->cid = cid; 3404183122dSJayamohan Kallickal inv_tbl->icd = abrt_io_task->psgl_handle->sgl_index; 3414183122dSJayamohan Kallickal num_invalidate++; 3424183122dSJayamohan Kallickal inv_tbl++; 3434183122dSJayamohan Kallickal } 344659743b0SShlomo Pongratz spin_unlock_bh(&session->frwd_lock); 3454183122dSJayamohan Kallickal inv_tbl = phba->inv_tbl; 3464183122dSJayamohan Kallickal 3473cbb7a74SJayamohan Kallickal nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev, 3483cbb7a74SJayamohan Kallickal sizeof(struct invalidate_commands_params_in), 3493cbb7a74SJayamohan Kallickal &nonemb_cmd.dma); 3503cbb7a74SJayamohan Kallickal if (nonemb_cmd.va == NULL) { 35199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH, 35299bc5d55SJohn Soni Jose "BM_%d : Failed to allocate memory for" 3533cbb7a74SJayamohan Kallickal "mgmt_invalidate_icds\n"); 3543cbb7a74SJayamohan Kallickal return FAILED; 3553cbb7a74SJayamohan Kallickal } 3563cbb7a74SJayamohan Kallickal nonemb_cmd.size = sizeof(struct invalidate_commands_params_in); 3573cbb7a74SJayamohan Kallickal memset(nonemb_cmd.va, 0, nonemb_cmd.size); 3583cbb7a74SJayamohan Kallickal tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, 3593cbb7a74SJayamohan Kallickal cid, &nonemb_cmd); 3604183122dSJayamohan Kallickal if (!tag) { 36199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_EH, 36299bc5d55SJohn Soni Jose "BM_%d : mgmt_invalidate_icds could not be" 3634183122dSJayamohan Kallickal " submitted\n"); 3643cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 3653cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 3664183122dSJayamohan Kallickal return FAILED; 3674183122dSJayamohan Kallickal } 368e175defeSJohn Soni Jose 3691957aa7fSJayamohan Kallickal rc = beiscsi_mccq_compl(phba, tag, NULL, &nonemb_cmd); 3701957aa7fSJayamohan Kallickal if (rc != -EBUSY) 3713cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 3723cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 3734183122dSJayamohan Kallickal return iscsi_eh_device_reset(sc); 3744183122dSJayamohan Kallickal } 3754183122dSJayamohan Kallickal 376c7acc5b8SJayamohan Kallickal static ssize_t beiscsi_show_boot_tgt_info(void *data, int type, char *buf) 377c7acc5b8SJayamohan Kallickal { 378c7acc5b8SJayamohan Kallickal struct beiscsi_hba *phba = data; 379f457a46fSMike Christie struct mgmt_session_info *boot_sess = &phba->boot_sess; 380f457a46fSMike Christie struct mgmt_conn_info *boot_conn = &boot_sess->conn_list[0]; 381c7acc5b8SJayamohan Kallickal char *str = buf; 382c7acc5b8SJayamohan Kallickal int rc; 383c7acc5b8SJayamohan Kallickal 384c7acc5b8SJayamohan Kallickal switch (type) { 385c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NAME: 386c7acc5b8SJayamohan Kallickal rc = sprintf(buf, "%.*s\n", 387f457a46fSMike Christie (int)strlen(boot_sess->target_name), 388f457a46fSMike Christie (char *)&boot_sess->target_name); 389c7acc5b8SJayamohan Kallickal break; 390c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_IP_ADDR: 391f457a46fSMike Christie if (boot_conn->dest_ipaddr.ip_type == 0x1) 392c7acc5b8SJayamohan Kallickal rc = sprintf(buf, "%pI4\n", 3930e43895eSMike Christie (char *)&boot_conn->dest_ipaddr.addr); 394c7acc5b8SJayamohan Kallickal else 395c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%pI6\n", 3960e43895eSMike Christie (char *)&boot_conn->dest_ipaddr.addr); 397c7acc5b8SJayamohan Kallickal break; 398c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_PORT: 399f457a46fSMike Christie rc = sprintf(str, "%d\n", boot_conn->dest_port); 400c7acc5b8SJayamohan Kallickal break; 401c7acc5b8SJayamohan Kallickal 402c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_NAME: 403c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 404f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 405c7acc5b8SJayamohan Kallickal target_chap_name_length, 406f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 407f457a46fSMike Christie auth_data.chap.target_chap_name); 408c7acc5b8SJayamohan Kallickal break; 409c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_SECRET: 410c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 411f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 412c7acc5b8SJayamohan Kallickal target_secret_length, 413f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 414f457a46fSMike Christie auth_data.chap.target_secret); 415c7acc5b8SJayamohan Kallickal break; 416c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_NAME: 417c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 418f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 419c7acc5b8SJayamohan Kallickal intr_chap_name_length, 420f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 421f457a46fSMike Christie auth_data.chap.intr_chap_name); 422c7acc5b8SJayamohan Kallickal break; 423c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 424c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 425f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 426c7acc5b8SJayamohan Kallickal intr_secret_length, 427f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 428f457a46fSMike Christie auth_data.chap.intr_secret); 429c7acc5b8SJayamohan Kallickal break; 430c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_FLAGS: 431c7acc5b8SJayamohan Kallickal rc = sprintf(str, "2\n"); 432c7acc5b8SJayamohan Kallickal break; 433c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NIC_ASSOC: 434c7acc5b8SJayamohan Kallickal rc = sprintf(str, "0\n"); 435c7acc5b8SJayamohan Kallickal break; 436c7acc5b8SJayamohan Kallickal default: 437c7acc5b8SJayamohan Kallickal rc = -ENOSYS; 438c7acc5b8SJayamohan Kallickal break; 439c7acc5b8SJayamohan Kallickal } 440c7acc5b8SJayamohan Kallickal return rc; 441c7acc5b8SJayamohan Kallickal } 442c7acc5b8SJayamohan Kallickal 443c7acc5b8SJayamohan Kallickal static ssize_t beiscsi_show_boot_ini_info(void *data, int type, char *buf) 444c7acc5b8SJayamohan Kallickal { 445c7acc5b8SJayamohan Kallickal struct beiscsi_hba *phba = data; 446c7acc5b8SJayamohan Kallickal char *str = buf; 447c7acc5b8SJayamohan Kallickal int rc; 448c7acc5b8SJayamohan Kallickal 449c7acc5b8SJayamohan Kallickal switch (type) { 450c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_INI_INITIATOR_NAME: 451c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%s\n", phba->boot_sess.initiator_iscsiname); 452c7acc5b8SJayamohan Kallickal break; 453c7acc5b8SJayamohan Kallickal default: 454c7acc5b8SJayamohan Kallickal rc = -ENOSYS; 455c7acc5b8SJayamohan Kallickal break; 456c7acc5b8SJayamohan Kallickal } 457c7acc5b8SJayamohan Kallickal return rc; 458c7acc5b8SJayamohan Kallickal } 459c7acc5b8SJayamohan Kallickal 460c7acc5b8SJayamohan Kallickal static ssize_t beiscsi_show_boot_eth_info(void *data, int type, char *buf) 461c7acc5b8SJayamohan Kallickal { 462c7acc5b8SJayamohan Kallickal struct beiscsi_hba *phba = data; 463c7acc5b8SJayamohan Kallickal char *str = buf; 464c7acc5b8SJayamohan Kallickal int rc; 465c7acc5b8SJayamohan Kallickal 466c7acc5b8SJayamohan Kallickal switch (type) { 467c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_FLAGS: 468c7acc5b8SJayamohan Kallickal rc = sprintf(str, "2\n"); 469c7acc5b8SJayamohan Kallickal break; 470c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_INDEX: 471c7acc5b8SJayamohan Kallickal rc = sprintf(str, "0\n"); 472c7acc5b8SJayamohan Kallickal break; 473c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_MAC: 4740e43895eSMike Christie rc = beiscsi_get_macaddr(str, phba); 475c7acc5b8SJayamohan Kallickal break; 476c7acc5b8SJayamohan Kallickal default: 477c7acc5b8SJayamohan Kallickal rc = -ENOSYS; 478c7acc5b8SJayamohan Kallickal break; 479c7acc5b8SJayamohan Kallickal } 480c7acc5b8SJayamohan Kallickal return rc; 481c7acc5b8SJayamohan Kallickal } 482c7acc5b8SJayamohan Kallickal 483c7acc5b8SJayamohan Kallickal 484587a1f16SAl Viro static umode_t beiscsi_tgt_get_attr_visibility(void *data, int type) 485c7acc5b8SJayamohan Kallickal { 486587a1f16SAl Viro umode_t rc; 487c7acc5b8SJayamohan Kallickal 488c7acc5b8SJayamohan Kallickal switch (type) { 489c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NAME: 490c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_IP_ADDR: 491c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_PORT: 492c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_NAME: 493c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_SECRET: 494c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_NAME: 495c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 496c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NIC_ASSOC: 497c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_FLAGS: 498c7acc5b8SJayamohan Kallickal rc = S_IRUGO; 499c7acc5b8SJayamohan Kallickal break; 500c7acc5b8SJayamohan Kallickal default: 501c7acc5b8SJayamohan Kallickal rc = 0; 502c7acc5b8SJayamohan Kallickal break; 503c7acc5b8SJayamohan Kallickal } 504c7acc5b8SJayamohan Kallickal return rc; 505c7acc5b8SJayamohan Kallickal } 506c7acc5b8SJayamohan Kallickal 507587a1f16SAl Viro static umode_t beiscsi_ini_get_attr_visibility(void *data, int type) 508c7acc5b8SJayamohan Kallickal { 509587a1f16SAl Viro umode_t rc; 510c7acc5b8SJayamohan Kallickal 511c7acc5b8SJayamohan Kallickal switch (type) { 512c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_INI_INITIATOR_NAME: 513c7acc5b8SJayamohan Kallickal rc = S_IRUGO; 514c7acc5b8SJayamohan Kallickal break; 515c7acc5b8SJayamohan Kallickal default: 516c7acc5b8SJayamohan Kallickal rc = 0; 517c7acc5b8SJayamohan Kallickal break; 518c7acc5b8SJayamohan Kallickal } 519c7acc5b8SJayamohan Kallickal return rc; 520c7acc5b8SJayamohan Kallickal } 521c7acc5b8SJayamohan Kallickal 522c7acc5b8SJayamohan Kallickal 523587a1f16SAl Viro static umode_t beiscsi_eth_get_attr_visibility(void *data, int type) 524c7acc5b8SJayamohan Kallickal { 525587a1f16SAl Viro umode_t rc; 526c7acc5b8SJayamohan Kallickal 527c7acc5b8SJayamohan Kallickal switch (type) { 528c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_FLAGS: 529c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_MAC: 530c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_INDEX: 531c7acc5b8SJayamohan Kallickal rc = S_IRUGO; 532c7acc5b8SJayamohan Kallickal break; 533c7acc5b8SJayamohan Kallickal default: 534c7acc5b8SJayamohan Kallickal rc = 0; 535c7acc5b8SJayamohan Kallickal break; 536c7acc5b8SJayamohan Kallickal } 537c7acc5b8SJayamohan Kallickal return rc; 538c7acc5b8SJayamohan Kallickal } 539c7acc5b8SJayamohan Kallickal 540bfead3b2SJayamohan Kallickal /*------------------- PCI Driver operations and data ----------------- */ 5419baa3c34SBenoit Taine static const struct pci_device_id beiscsi_pci_id_table[] = { 542bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) }, 543f98c96b0SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) }, 544bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) }, 545bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) }, 546bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) }, 547139a1b1eSJohn Soni Jose { PCI_DEVICE(ELX_VENDOR_ID, OC_SKH_ID1) }, 548bfead3b2SJayamohan Kallickal { 0 } 549bfead3b2SJayamohan Kallickal }; 550bfead3b2SJayamohan Kallickal MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table); 551bfead3b2SJayamohan Kallickal 55299bc5d55SJohn Soni Jose 5536733b39aSJayamohan Kallickal static struct scsi_host_template beiscsi_sht = { 5546733b39aSJayamohan Kallickal .module = THIS_MODULE, 555c4f39bdaSKetan Mukadam .name = "Emulex 10Gbe open-iscsi Initiator Driver", 5566733b39aSJayamohan Kallickal .proc_name = DRV_NAME, 5576733b39aSJayamohan Kallickal .queuecommand = iscsi_queuecommand, 558db5ed4dfSChristoph Hellwig .change_queue_depth = scsi_change_queue_depth, 5596733b39aSJayamohan Kallickal .slave_configure = beiscsi_slave_configure, 5606733b39aSJayamohan Kallickal .target_alloc = iscsi_target_alloc, 5614183122dSJayamohan Kallickal .eh_abort_handler = beiscsi_eh_abort, 5624183122dSJayamohan Kallickal .eh_device_reset_handler = beiscsi_eh_device_reset, 563309ce156SJayamohan Kallickal .eh_target_reset_handler = iscsi_eh_session_reset, 56499bc5d55SJohn Soni Jose .shost_attrs = beiscsi_attrs, 5656733b39aSJayamohan Kallickal .sg_tablesize = BEISCSI_SGLIST_ELEMENTS, 5666733b39aSJayamohan Kallickal .can_queue = BE2_IO_DEPTH, 5676733b39aSJayamohan Kallickal .this_id = -1, 5686733b39aSJayamohan Kallickal .max_sectors = BEISCSI_MAX_SECTORS, 5696733b39aSJayamohan Kallickal .cmd_per_lun = BEISCSI_CMD_PER_LUN, 5706733b39aSJayamohan Kallickal .use_clustering = ENABLE_CLUSTERING, 571ffce3e2eSJayamohan Kallickal .vendor_id = SCSI_NL_VID_TYPE_PCI | BE_VENDOR_ID, 572c40ecc12SChristoph Hellwig .track_queue_depth = 1, 5736733b39aSJayamohan Kallickal }; 5746733b39aSJayamohan Kallickal 575bfead3b2SJayamohan Kallickal static struct scsi_transport_template *beiscsi_scsi_transport; 5766733b39aSJayamohan Kallickal 5776733b39aSJayamohan Kallickal static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev) 5786733b39aSJayamohan Kallickal { 5796733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 5806733b39aSJayamohan Kallickal struct Scsi_Host *shost; 5816733b39aSJayamohan Kallickal 5826733b39aSJayamohan Kallickal shost = iscsi_host_alloc(&beiscsi_sht, sizeof(*phba), 0); 5836733b39aSJayamohan Kallickal if (!shost) { 58499bc5d55SJohn Soni Jose dev_err(&pcidev->dev, 58599bc5d55SJohn Soni Jose "beiscsi_hba_alloc - iscsi_host_alloc failed\n"); 5866733b39aSJayamohan Kallickal return NULL; 5876733b39aSJayamohan Kallickal } 5886733b39aSJayamohan Kallickal shost->max_id = BE2_MAX_SESSIONS; 5896733b39aSJayamohan Kallickal shost->max_channel = 0; 5906733b39aSJayamohan Kallickal shost->max_cmd_len = BEISCSI_MAX_CMD_LEN; 5916733b39aSJayamohan Kallickal shost->max_lun = BEISCSI_NUM_MAX_LUN; 5926733b39aSJayamohan Kallickal shost->transportt = beiscsi_scsi_transport; 5936733b39aSJayamohan Kallickal phba = iscsi_host_priv(shost); 5946733b39aSJayamohan Kallickal memset(phba, 0, sizeof(*phba)); 5956733b39aSJayamohan Kallickal phba->shost = shost; 5966733b39aSJayamohan Kallickal phba->pcidev = pci_dev_get(pcidev); 5972807afb7SJayamohan Kallickal pci_set_drvdata(pcidev, phba); 5980e43895eSMike Christie phba->interface_handle = 0xFFFFFFFF; 5996733b39aSJayamohan Kallickal 6006733b39aSJayamohan Kallickal return phba; 6016733b39aSJayamohan Kallickal } 6026733b39aSJayamohan Kallickal 6036733b39aSJayamohan Kallickal static void beiscsi_unmap_pci_function(struct beiscsi_hba *phba) 6046733b39aSJayamohan Kallickal { 6056733b39aSJayamohan Kallickal if (phba->csr_va) { 6066733b39aSJayamohan Kallickal iounmap(phba->csr_va); 6076733b39aSJayamohan Kallickal phba->csr_va = NULL; 6086733b39aSJayamohan Kallickal } 6096733b39aSJayamohan Kallickal if (phba->db_va) { 6106733b39aSJayamohan Kallickal iounmap(phba->db_va); 6116733b39aSJayamohan Kallickal phba->db_va = NULL; 6126733b39aSJayamohan Kallickal } 6136733b39aSJayamohan Kallickal if (phba->pci_va) { 6146733b39aSJayamohan Kallickal iounmap(phba->pci_va); 6156733b39aSJayamohan Kallickal phba->pci_va = NULL; 6166733b39aSJayamohan Kallickal } 6176733b39aSJayamohan Kallickal } 6186733b39aSJayamohan Kallickal 6196733b39aSJayamohan Kallickal static int beiscsi_map_pci_bars(struct beiscsi_hba *phba, 6206733b39aSJayamohan Kallickal struct pci_dev *pcidev) 6216733b39aSJayamohan Kallickal { 6226733b39aSJayamohan Kallickal u8 __iomem *addr; 623f98c96b0SJayamohan Kallickal int pcicfg_reg; 6246733b39aSJayamohan Kallickal 6256733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 2), 6266733b39aSJayamohan Kallickal pci_resource_len(pcidev, 2)); 6276733b39aSJayamohan Kallickal if (addr == NULL) 6286733b39aSJayamohan Kallickal return -ENOMEM; 6296733b39aSJayamohan Kallickal phba->ctrl.csr = addr; 6306733b39aSJayamohan Kallickal phba->csr_va = addr; 6316733b39aSJayamohan Kallickal phba->csr_pa.u.a64.address = pci_resource_start(pcidev, 2); 6326733b39aSJayamohan Kallickal 6336733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 4), 128 * 1024); 6346733b39aSJayamohan Kallickal if (addr == NULL) 6356733b39aSJayamohan Kallickal goto pci_map_err; 6366733b39aSJayamohan Kallickal phba->ctrl.db = addr; 6376733b39aSJayamohan Kallickal phba->db_va = addr; 6386733b39aSJayamohan Kallickal phba->db_pa.u.a64.address = pci_resource_start(pcidev, 4); 6396733b39aSJayamohan Kallickal 640f98c96b0SJayamohan Kallickal if (phba->generation == BE_GEN2) 641f98c96b0SJayamohan Kallickal pcicfg_reg = 1; 642f98c96b0SJayamohan Kallickal else 643f98c96b0SJayamohan Kallickal pcicfg_reg = 0; 644f98c96b0SJayamohan Kallickal 645f98c96b0SJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, pcicfg_reg), 646f98c96b0SJayamohan Kallickal pci_resource_len(pcidev, pcicfg_reg)); 647f98c96b0SJayamohan Kallickal 6486733b39aSJayamohan Kallickal if (addr == NULL) 6496733b39aSJayamohan Kallickal goto pci_map_err; 6506733b39aSJayamohan Kallickal phba->ctrl.pcicfg = addr; 6516733b39aSJayamohan Kallickal phba->pci_va = addr; 652f98c96b0SJayamohan Kallickal phba->pci_pa.u.a64.address = pci_resource_start(pcidev, pcicfg_reg); 6536733b39aSJayamohan Kallickal return 0; 6546733b39aSJayamohan Kallickal 6556733b39aSJayamohan Kallickal pci_map_err: 6566733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 6576733b39aSJayamohan Kallickal return -ENOMEM; 6586733b39aSJayamohan Kallickal } 6596733b39aSJayamohan Kallickal 6606733b39aSJayamohan Kallickal static int beiscsi_enable_pci(struct pci_dev *pcidev) 6616733b39aSJayamohan Kallickal { 6626733b39aSJayamohan Kallickal int ret; 6636733b39aSJayamohan Kallickal 6646733b39aSJayamohan Kallickal ret = pci_enable_device(pcidev); 6656733b39aSJayamohan Kallickal if (ret) { 66699bc5d55SJohn Soni Jose dev_err(&pcidev->dev, 66799bc5d55SJohn Soni Jose "beiscsi_enable_pci - enable device failed\n"); 6686733b39aSJayamohan Kallickal return ret; 6696733b39aSJayamohan Kallickal } 6706733b39aSJayamohan Kallickal 671e307f3acSJohn Soni Jose ret = pci_request_regions(pcidev, DRV_NAME); 672e307f3acSJohn Soni Jose if (ret) { 673e307f3acSJohn Soni Jose dev_err(&pcidev->dev, 674e307f3acSJohn Soni Jose "beiscsi_enable_pci - request region failed\n"); 675e307f3acSJohn Soni Jose goto pci_dev_disable; 676e307f3acSJohn Soni Jose } 677e307f3acSJohn Soni Jose 678bfead3b2SJayamohan Kallickal pci_set_master(pcidev); 6796c57625bSJayamohan Kallickal ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64)); 6806c57625bSJayamohan Kallickal if (ret) { 6816c57625bSJayamohan Kallickal ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32)); 6826c57625bSJayamohan Kallickal if (ret) { 6836c57625bSJayamohan Kallickal dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n"); 684e307f3acSJohn Soni Jose goto pci_region_release; 6856c57625bSJayamohan Kallickal } else { 6866c57625bSJayamohan Kallickal ret = pci_set_consistent_dma_mask(pcidev, 6876c57625bSJayamohan Kallickal DMA_BIT_MASK(32)); 6886c57625bSJayamohan Kallickal } 6896c57625bSJayamohan Kallickal } else { 6906c57625bSJayamohan Kallickal ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64)); 6916733b39aSJayamohan Kallickal if (ret) { 6926733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n"); 693e307f3acSJohn Soni Jose goto pci_region_release; 6946733b39aSJayamohan Kallickal } 6956733b39aSJayamohan Kallickal } 6966733b39aSJayamohan Kallickal return 0; 697e307f3acSJohn Soni Jose 698e307f3acSJohn Soni Jose pci_region_release: 699e307f3acSJohn Soni Jose pci_release_regions(pcidev); 700e307f3acSJohn Soni Jose pci_dev_disable: 701e307f3acSJohn Soni Jose pci_disable_device(pcidev); 702e307f3acSJohn Soni Jose 703e307f3acSJohn Soni Jose return ret; 7046733b39aSJayamohan Kallickal } 7056733b39aSJayamohan Kallickal 7066733b39aSJayamohan Kallickal static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev) 7076733b39aSJayamohan Kallickal { 7086733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 7096733b39aSJayamohan Kallickal struct be_dma_mem *mbox_mem_alloc = &ctrl->mbox_mem_alloced; 7106733b39aSJayamohan Kallickal struct be_dma_mem *mbox_mem_align = &ctrl->mbox_mem; 7116733b39aSJayamohan Kallickal int status = 0; 7126733b39aSJayamohan Kallickal 7136733b39aSJayamohan Kallickal ctrl->pdev = pdev; 7146733b39aSJayamohan Kallickal status = beiscsi_map_pci_bars(phba, pdev); 7156733b39aSJayamohan Kallickal if (status) 7166733b39aSJayamohan Kallickal return status; 7176733b39aSJayamohan Kallickal mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16; 7186733b39aSJayamohan Kallickal mbox_mem_alloc->va = pci_alloc_consistent(pdev, 7196733b39aSJayamohan Kallickal mbox_mem_alloc->size, 7206733b39aSJayamohan Kallickal &mbox_mem_alloc->dma); 7216733b39aSJayamohan Kallickal if (!mbox_mem_alloc->va) { 7226733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 723a49e06d5SJayamohan Kallickal return -ENOMEM; 7246733b39aSJayamohan Kallickal } 7256733b39aSJayamohan Kallickal 7266733b39aSJayamohan Kallickal mbox_mem_align->size = sizeof(struct be_mcc_mailbox); 7276733b39aSJayamohan Kallickal mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16); 7286733b39aSJayamohan Kallickal mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16); 7296733b39aSJayamohan Kallickal memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox)); 730c03a50f7SJitendra Bhivare mutex_init(&ctrl->mbox_lock); 731bfead3b2SJayamohan Kallickal spin_lock_init(&phba->ctrl.mcc_lock); 732bfead3b2SJayamohan Kallickal spin_lock_init(&phba->ctrl.mcc_cq_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_eq_entry *eqe = NULL; 899bfead3b2SJayamohan Kallickal struct be_queue_info *eq; 900bfead3b2SJayamohan Kallickal struct be_queue_info *cq; 901bfead3b2SJayamohan Kallickal unsigned int num_eq_processed; 902bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 903bfead3b2SJayamohan Kallickal 904bfead3b2SJayamohan Kallickal pbe_eq = dev_id; 905bfead3b2SJayamohan Kallickal eq = &pbe_eq->q; 906bfead3b2SJayamohan Kallickal cq = pbe_eq->cq; 907bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 908bfead3b2SJayamohan Kallickal 909bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 910bfead3b2SJayamohan Kallickal num_eq_processed = 0; 911bfead3b2SJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 912bfead3b2SJayamohan Kallickal & EQE_VALID_MASK) { 913511cbce2SChristoph Hellwig irq_poll_sched(&pbe_eq->iopoll); 914bfead3b2SJayamohan Kallickal 915bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 916bfead3b2SJayamohan Kallickal queue_tail_inc(eq); 917bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 918bfead3b2SJayamohan Kallickal num_eq_processed++; 919bfead3b2SJayamohan Kallickal } 920bfead3b2SJayamohan Kallickal 921bfead3b2SJayamohan Kallickal if (num_eq_processed) 92272fb46a9SJohn Soni Jose hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 0, 1); 923bfead3b2SJayamohan Kallickal 924bfead3b2SJayamohan Kallickal return IRQ_HANDLED; 925bfead3b2SJayamohan Kallickal } 926bfead3b2SJayamohan Kallickal 927bfead3b2SJayamohan Kallickal /** 9286733b39aSJayamohan Kallickal * be_isr - The isr routine of the driver. 9296733b39aSJayamohan Kallickal * @irq: Not used 9306733b39aSJayamohan Kallickal * @dev_id: Pointer to host adapter structure 9316733b39aSJayamohan Kallickal */ 9326733b39aSJayamohan Kallickal static irqreturn_t be_isr(int irq, void *dev_id) 9336733b39aSJayamohan Kallickal { 9346733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 9356733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 9366733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 9376733b39aSJayamohan Kallickal struct be_eq_entry *eqe = NULL; 9386733b39aSJayamohan Kallickal struct be_queue_info *eq; 939bfead3b2SJayamohan Kallickal struct be_queue_info *mcc; 9406733b39aSJayamohan Kallickal unsigned long flags, index; 941bfead3b2SJayamohan Kallickal unsigned int num_mcceq_processed, num_ioeq_processed; 9426733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl; 943bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 9446733b39aSJayamohan Kallickal int isr; 9456733b39aSJayamohan Kallickal 9466733b39aSJayamohan Kallickal phba = dev_id; 9476eab04a8SJustin P. Mattock ctrl = &phba->ctrl; 9486733b39aSJayamohan Kallickal isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET + 9496733b39aSJayamohan Kallickal (PCI_FUNC(ctrl->pdev->devfn) * CEV_ISR_SIZE)); 9506733b39aSJayamohan Kallickal if (!isr) 9516733b39aSJayamohan Kallickal return IRQ_NONE; 9526733b39aSJayamohan Kallickal 9536733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 9546733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 955bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[0]; 956bfead3b2SJayamohan Kallickal 957bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[0].q; 958bfead3b2SJayamohan Kallickal mcc = &phba->ctrl.mcc_obj.cq; 9596733b39aSJayamohan Kallickal index = 0; 9606733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 9616733b39aSJayamohan Kallickal 962bfead3b2SJayamohan Kallickal num_ioeq_processed = 0; 963bfead3b2SJayamohan Kallickal num_mcceq_processed = 0; 9646733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 9656733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 966bfead3b2SJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 967bfead3b2SJayamohan Kallickal resource_id) / 32] & 968bfead3b2SJayamohan Kallickal EQE_RESID_MASK) >> 16) == mcc->id) { 969bfead3b2SJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 97072fb46a9SJohn Soni Jose pbe_eq->todo_mcc_cq = true; 971bfead3b2SJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 972bfead3b2SJayamohan Kallickal num_mcceq_processed++; 973bfead3b2SJayamohan Kallickal } else { 974511cbce2SChristoph Hellwig irq_poll_sched(&pbe_eq->iopoll); 975bfead3b2SJayamohan Kallickal num_ioeq_processed++; 976bfead3b2SJayamohan Kallickal } 9776733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 9786733b39aSJayamohan Kallickal queue_tail_inc(eq); 9796733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 9806733b39aSJayamohan Kallickal } 981bfead3b2SJayamohan Kallickal if (num_ioeq_processed || num_mcceq_processed) { 98272fb46a9SJohn Soni Jose if (pbe_eq->todo_mcc_cq) 98372fb46a9SJohn Soni Jose queue_work(phba->wq, &pbe_eq->work_cqs); 984bfead3b2SJayamohan Kallickal 985bfead3b2SJayamohan Kallickal if ((num_mcceq_processed) && (!num_ioeq_processed)) 986bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 987bfead3b2SJayamohan Kallickal (num_ioeq_processed + 988bfead3b2SJayamohan Kallickal num_mcceq_processed) , 1, 1); 989bfead3b2SJayamohan Kallickal else 990bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 991bfead3b2SJayamohan Kallickal (num_ioeq_processed + 992bfead3b2SJayamohan Kallickal num_mcceq_processed), 0, 1); 993bfead3b2SJayamohan Kallickal 9946733b39aSJayamohan Kallickal return IRQ_HANDLED; 9956733b39aSJayamohan Kallickal } else 9966733b39aSJayamohan Kallickal return IRQ_NONE; 9976733b39aSJayamohan Kallickal } 9986733b39aSJayamohan Kallickal 9996733b39aSJayamohan Kallickal static int beiscsi_init_irqs(struct beiscsi_hba *phba) 10006733b39aSJayamohan Kallickal { 10016733b39aSJayamohan Kallickal struct pci_dev *pcidev = phba->pcidev; 1002bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 1003bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 10044f5af07eSJayamohan Kallickal int ret, msix_vec, i, j; 10056733b39aSJayamohan Kallickal 1006bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 1007bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 1008bfead3b2SJayamohan Kallickal 1009bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 1010bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 10118fcfb210SJayamohan Kallickal phba->msi_name[i] = kzalloc(BEISCSI_MSI_NAME, 10128fcfb210SJayamohan Kallickal GFP_KERNEL); 10138fcfb210SJayamohan Kallickal if (!phba->msi_name[i]) { 10148fcfb210SJayamohan Kallickal ret = -ENOMEM; 10158fcfb210SJayamohan Kallickal goto free_msix_irqs; 10168fcfb210SJayamohan Kallickal } 10178fcfb210SJayamohan Kallickal 10188fcfb210SJayamohan Kallickal sprintf(phba->msi_name[i], "beiscsi_%02x_%02x", 10198fcfb210SJayamohan Kallickal phba->shost->host_no, i); 1020bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 10218fcfb210SJayamohan Kallickal ret = request_irq(msix_vec, be_isr_msix, 0, 10228fcfb210SJayamohan Kallickal phba->msi_name[i], 1023bfead3b2SJayamohan Kallickal &phwi_context->be_eq[i]); 10244f5af07eSJayamohan Kallickal if (ret) { 102599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 102699bc5d55SJohn Soni Jose "BM_%d : beiscsi_init_irqs-Failed to" 102799bc5d55SJohn Soni Jose "register msix for i = %d\n", 102899bc5d55SJohn Soni Jose i); 10298fcfb210SJayamohan Kallickal kfree(phba->msi_name[i]); 10304f5af07eSJayamohan Kallickal goto free_msix_irqs; 10314f5af07eSJayamohan Kallickal } 1032bfead3b2SJayamohan Kallickal } 10338fcfb210SJayamohan Kallickal phba->msi_name[i] = kzalloc(BEISCSI_MSI_NAME, GFP_KERNEL); 10348fcfb210SJayamohan Kallickal if (!phba->msi_name[i]) { 10358fcfb210SJayamohan Kallickal ret = -ENOMEM; 10368fcfb210SJayamohan Kallickal goto free_msix_irqs; 10378fcfb210SJayamohan Kallickal } 10388fcfb210SJayamohan Kallickal sprintf(phba->msi_name[i], "beiscsi_mcc_%02x", 10398fcfb210SJayamohan Kallickal phba->shost->host_no); 1040bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 10418fcfb210SJayamohan Kallickal ret = request_irq(msix_vec, be_isr_mcc, 0, phba->msi_name[i], 1042bfead3b2SJayamohan Kallickal &phwi_context->be_eq[i]); 10434f5af07eSJayamohan Kallickal if (ret) { 104499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT , 104599bc5d55SJohn Soni Jose "BM_%d : beiscsi_init_irqs-" 10464f5af07eSJayamohan Kallickal "Failed to register beiscsi_msix_mcc\n"); 10478fcfb210SJayamohan Kallickal kfree(phba->msi_name[i]); 10484f5af07eSJayamohan Kallickal goto free_msix_irqs; 10494f5af07eSJayamohan Kallickal } 10504f5af07eSJayamohan Kallickal 1051bfead3b2SJayamohan Kallickal } else { 1052bfead3b2SJayamohan Kallickal ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED, 1053bfead3b2SJayamohan Kallickal "beiscsi", phba); 10546733b39aSJayamohan Kallickal if (ret) { 105599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 105699bc5d55SJohn Soni Jose "BM_%d : beiscsi_init_irqs-" 10576733b39aSJayamohan Kallickal "Failed to register irq\\n"); 10586733b39aSJayamohan Kallickal return ret; 10596733b39aSJayamohan Kallickal } 1060bfead3b2SJayamohan Kallickal } 10616733b39aSJayamohan Kallickal return 0; 10624f5af07eSJayamohan Kallickal free_msix_irqs: 10638fcfb210SJayamohan Kallickal for (j = i - 1; j >= 0; j--) { 10648fcfb210SJayamohan Kallickal kfree(phba->msi_name[j]); 10658fcfb210SJayamohan Kallickal msix_vec = phba->msix_entries[j].vector; 10664f5af07eSJayamohan Kallickal free_irq(msix_vec, &phwi_context->be_eq[j]); 10678fcfb210SJayamohan Kallickal } 10684f5af07eSJayamohan Kallickal return ret; 10696733b39aSJayamohan Kallickal } 10706733b39aSJayamohan Kallickal 1071e08b3c8bSJayamohan Kallickal void hwi_ring_cq_db(struct beiscsi_hba *phba, 10726733b39aSJayamohan Kallickal unsigned int id, unsigned int num_processed, 10736733b39aSJayamohan Kallickal unsigned char rearm, unsigned char event) 10746733b39aSJayamohan Kallickal { 10756733b39aSJayamohan Kallickal u32 val = 0; 1076e08b3c8bSJayamohan Kallickal 10776733b39aSJayamohan Kallickal if (rearm) 10786733b39aSJayamohan Kallickal val |= 1 << DB_CQ_REARM_SHIFT; 1079e08b3c8bSJayamohan Kallickal 10806733b39aSJayamohan Kallickal val |= num_processed << DB_CQ_NUM_POPPED_SHIFT; 1081e08b3c8bSJayamohan Kallickal 1082e08b3c8bSJayamohan Kallickal /* Setting lower order CQ_ID Bits */ 1083e08b3c8bSJayamohan Kallickal val |= (id & DB_CQ_RING_ID_LOW_MASK); 1084e08b3c8bSJayamohan Kallickal 1085e08b3c8bSJayamohan Kallickal /* Setting Higher order CQ_ID Bits */ 1086e08b3c8bSJayamohan Kallickal val |= (((id >> DB_CQ_HIGH_FEILD_SHIFT) & 1087e08b3c8bSJayamohan Kallickal DB_CQ_RING_ID_HIGH_MASK) 1088e08b3c8bSJayamohan Kallickal << DB_CQ_HIGH_SET_SHIFT); 1089e08b3c8bSJayamohan Kallickal 10906733b39aSJayamohan Kallickal iowrite32(val, phba->db_va + DB_CQ_OFFSET); 10916733b39aSJayamohan Kallickal } 10926733b39aSJayamohan Kallickal 10936733b39aSJayamohan Kallickal static unsigned int 10946733b39aSJayamohan Kallickal beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn, 10956733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 10966733b39aSJayamohan Kallickal struct pdu_base *ppdu, 10976733b39aSJayamohan Kallickal unsigned long pdu_len, 10986733b39aSJayamohan Kallickal void *pbuffer, unsigned long buf_len) 10996733b39aSJayamohan Kallickal { 11006733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 11016733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 1102bfead3b2SJayamohan Kallickal struct iscsi_task *task; 1103bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task; 1104bfead3b2SJayamohan Kallickal struct iscsi_hdr *login_hdr; 11056733b39aSJayamohan Kallickal 11066733b39aSJayamohan Kallickal switch (ppdu->dw[offsetof(struct amap_pdu_base, opcode) / 32] & 11076733b39aSJayamohan Kallickal PDUBASE_OPCODE_MASK) { 11086733b39aSJayamohan Kallickal case ISCSI_OP_NOOP_IN: 11096733b39aSJayamohan Kallickal pbuffer = NULL; 11106733b39aSJayamohan Kallickal buf_len = 0; 11116733b39aSJayamohan Kallickal break; 11126733b39aSJayamohan Kallickal case ISCSI_OP_ASYNC_EVENT: 11136733b39aSJayamohan Kallickal break; 11146733b39aSJayamohan Kallickal case ISCSI_OP_REJECT: 11156733b39aSJayamohan Kallickal WARN_ON(!pbuffer); 11166733b39aSJayamohan Kallickal WARN_ON(!(buf_len == 48)); 111799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 111899bc5d55SJohn Soni Jose BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, 111999bc5d55SJohn Soni Jose "BM_%d : In ISCSI_OP_REJECT\n"); 11206733b39aSJayamohan Kallickal break; 11216733b39aSJayamohan Kallickal case ISCSI_OP_LOGIN_RSP: 11227bd6e25cSJayamohan Kallickal case ISCSI_OP_TEXT_RSP: 1123bfead3b2SJayamohan Kallickal task = conn->login_task; 1124bfead3b2SJayamohan Kallickal io_task = task->dd_data; 1125bfead3b2SJayamohan Kallickal login_hdr = (struct iscsi_hdr *)ppdu; 1126bfead3b2SJayamohan Kallickal login_hdr->itt = io_task->libiscsi_itt; 11276733b39aSJayamohan Kallickal break; 11286733b39aSJayamohan Kallickal default: 112999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_WARNING, 113099bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 113199bc5d55SJohn Soni Jose "BM_%d : Unrecognized opcode 0x%x in async msg\n", 11326733b39aSJayamohan Kallickal (ppdu-> 11336733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_base, opcode) / 32] 11346733b39aSJayamohan Kallickal & PDUBASE_OPCODE_MASK)); 11356733b39aSJayamohan Kallickal return 1; 11366733b39aSJayamohan Kallickal } 11376733b39aSJayamohan Kallickal 1138659743b0SShlomo Pongratz spin_lock_bh(&session->back_lock); 11396733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)ppdu, pbuffer, buf_len); 1140659743b0SShlomo Pongratz spin_unlock_bh(&session->back_lock); 11416733b39aSJayamohan Kallickal return 0; 11426733b39aSJayamohan Kallickal } 11436733b39aSJayamohan Kallickal 11446733b39aSJayamohan Kallickal static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba) 11456733b39aSJayamohan Kallickal { 11466733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 11476733b39aSJayamohan Kallickal 11486733b39aSJayamohan Kallickal if (phba->io_sgl_hndl_avbl) { 114999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO, 115099bc5d55SJohn Soni Jose "BM_%d : In alloc_io_sgl_handle," 115199bc5d55SJohn Soni Jose " io_sgl_alloc_index=%d\n", 11526733b39aSJayamohan Kallickal phba->io_sgl_alloc_index); 115399bc5d55SJohn Soni Jose 11546733b39aSJayamohan Kallickal psgl_handle = phba->io_sgl_hndl_base[phba-> 11556733b39aSJayamohan Kallickal io_sgl_alloc_index]; 11566733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_alloc_index] = NULL; 11576733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl--; 1158bfead3b2SJayamohan Kallickal if (phba->io_sgl_alloc_index == (phba->params. 1159bfead3b2SJayamohan Kallickal ios_per_ctrl - 1)) 11606733b39aSJayamohan Kallickal phba->io_sgl_alloc_index = 0; 11616733b39aSJayamohan Kallickal else 11626733b39aSJayamohan Kallickal phba->io_sgl_alloc_index++; 11636733b39aSJayamohan Kallickal } else 11646733b39aSJayamohan Kallickal psgl_handle = NULL; 11656733b39aSJayamohan Kallickal return psgl_handle; 11666733b39aSJayamohan Kallickal } 11676733b39aSJayamohan Kallickal 11686733b39aSJayamohan Kallickal static void 11696733b39aSJayamohan Kallickal free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) 11706733b39aSJayamohan Kallickal { 117199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO, 117299bc5d55SJohn Soni Jose "BM_%d : In free_,io_sgl_free_index=%d\n", 11736733b39aSJayamohan Kallickal phba->io_sgl_free_index); 117499bc5d55SJohn Soni Jose 11756733b39aSJayamohan Kallickal if (phba->io_sgl_hndl_base[phba->io_sgl_free_index]) { 11766733b39aSJayamohan Kallickal /* 11776733b39aSJayamohan Kallickal * this can happen if clean_task is called on a task that 11786733b39aSJayamohan Kallickal * failed in xmit_task or alloc_pdu. 11796733b39aSJayamohan Kallickal */ 118099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO, 118199bc5d55SJohn Soni Jose "BM_%d : Double Free in IO SGL io_sgl_free_index=%d," 11826733b39aSJayamohan Kallickal "value there=%p\n", phba->io_sgl_free_index, 118399bc5d55SJohn Soni Jose phba->io_sgl_hndl_base 118499bc5d55SJohn Soni Jose [phba->io_sgl_free_index]); 11856733b39aSJayamohan Kallickal return; 11866733b39aSJayamohan Kallickal } 11876733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle; 11886733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl++; 11896733b39aSJayamohan Kallickal if (phba->io_sgl_free_index == (phba->params.ios_per_ctrl - 1)) 11906733b39aSJayamohan Kallickal phba->io_sgl_free_index = 0; 11916733b39aSJayamohan Kallickal else 11926733b39aSJayamohan Kallickal phba->io_sgl_free_index++; 11936733b39aSJayamohan Kallickal } 11946733b39aSJayamohan Kallickal 11956733b39aSJayamohan Kallickal /** 11966733b39aSJayamohan Kallickal * alloc_wrb_handle - To allocate a wrb handle 11976733b39aSJayamohan Kallickal * @phba: The hba pointer 11986733b39aSJayamohan Kallickal * @cid: The cid to use for allocation 1199340c99e9SJohn Soni Jose * @pwrb_context: ptr to ptr to wrb context 12006733b39aSJayamohan Kallickal * 12016733b39aSJayamohan Kallickal * This happens under session_lock until submission to chip 12026733b39aSJayamohan Kallickal */ 1203340c99e9SJohn Soni Jose struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid, 1204340c99e9SJohn Soni Jose struct hwi_wrb_context **pcontext) 12056733b39aSJayamohan Kallickal { 12066733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 12076733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 1208340c99e9SJohn Soni Jose struct wrb_handle *pwrb_handle; 1209a7909b39SJayamohan Kallickal uint16_t cri_index = BE_GET_CRI_FROM_CID(cid); 12106733b39aSJayamohan Kallickal 12116733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 1212a7909b39SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cri_index]; 1213d5431488SJayamohan Kallickal if (pwrb_context->wrb_handles_available >= 2) { 1214bfead3b2SJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[ 1215bfead3b2SJayamohan Kallickal pwrb_context->alloc_index]; 1216bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available--; 1217bfead3b2SJayamohan Kallickal if (pwrb_context->alloc_index == 1218bfead3b2SJayamohan Kallickal (phba->params.wrbs_per_cxn - 1)) 1219bfead3b2SJayamohan Kallickal pwrb_context->alloc_index = 0; 1220bfead3b2SJayamohan Kallickal else 1221bfead3b2SJayamohan Kallickal pwrb_context->alloc_index++; 1222340c99e9SJohn Soni Jose 1223340c99e9SJohn Soni Jose /* Return the context address */ 1224340c99e9SJohn Soni Jose *pcontext = pwrb_context; 1225bfead3b2SJayamohan Kallickal } else 1226bfead3b2SJayamohan Kallickal pwrb_handle = NULL; 12276733b39aSJayamohan Kallickal return pwrb_handle; 12286733b39aSJayamohan Kallickal } 12296733b39aSJayamohan Kallickal 12306733b39aSJayamohan Kallickal /** 12316733b39aSJayamohan Kallickal * free_wrb_handle - To free the wrb handle back to pool 12326733b39aSJayamohan Kallickal * @phba: The hba pointer 12336733b39aSJayamohan Kallickal * @pwrb_context: The context to free from 12346733b39aSJayamohan Kallickal * @pwrb_handle: The wrb_handle to free 12356733b39aSJayamohan Kallickal * 12366733b39aSJayamohan Kallickal * This happens under session_lock until submission to chip 12376733b39aSJayamohan Kallickal */ 12386733b39aSJayamohan Kallickal static void 12396733b39aSJayamohan Kallickal free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context, 12406733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle) 12416733b39aSJayamohan Kallickal { 124232951dd8SJayamohan Kallickal pwrb_context->pwrb_handle_base[pwrb_context->free_index] = pwrb_handle; 1243bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available++; 1244bfead3b2SJayamohan Kallickal if (pwrb_context->free_index == (phba->params.wrbs_per_cxn - 1)) 1245bfead3b2SJayamohan Kallickal pwrb_context->free_index = 0; 1246bfead3b2SJayamohan Kallickal else 1247bfead3b2SJayamohan Kallickal pwrb_context->free_index++; 1248bfead3b2SJayamohan Kallickal 124999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, 125099bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 125199bc5d55SJohn Soni Jose "BM_%d : FREE WRB: pwrb_handle=%p free_index=0x%x" 12526733b39aSJayamohan Kallickal "wrb_handles_available=%d\n", 12536733b39aSJayamohan Kallickal pwrb_handle, pwrb_context->free_index, 1254bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available); 12556733b39aSJayamohan Kallickal } 12566733b39aSJayamohan Kallickal 12576733b39aSJayamohan Kallickal static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba) 12586733b39aSJayamohan Kallickal { 12596733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 12606733b39aSJayamohan Kallickal 12616733b39aSJayamohan Kallickal if (phba->eh_sgl_hndl_avbl) { 12626733b39aSJayamohan Kallickal psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index]; 12636733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL; 126499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG, 126599bc5d55SJohn Soni Jose "BM_%d : mgmt_sgl_alloc_index=%d=0x%x\n", 126699bc5d55SJohn Soni Jose phba->eh_sgl_alloc_index, 126799bc5d55SJohn Soni Jose phba->eh_sgl_alloc_index); 126899bc5d55SJohn Soni Jose 12696733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl--; 12706733b39aSJayamohan Kallickal if (phba->eh_sgl_alloc_index == 12716733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 12726733b39aSJayamohan Kallickal 1)) 12736733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index = 0; 12746733b39aSJayamohan Kallickal else 12756733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index++; 12766733b39aSJayamohan Kallickal } else 12776733b39aSJayamohan Kallickal psgl_handle = NULL; 12786733b39aSJayamohan Kallickal return psgl_handle; 12796733b39aSJayamohan Kallickal } 12806733b39aSJayamohan Kallickal 12816733b39aSJayamohan Kallickal void 12826733b39aSJayamohan Kallickal free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) 12836733b39aSJayamohan Kallickal { 12846733b39aSJayamohan Kallickal 128599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG, 128699bc5d55SJohn Soni Jose "BM_%d : In free_mgmt_sgl_handle," 128799bc5d55SJohn Soni Jose "eh_sgl_free_index=%d\n", 1288bfead3b2SJayamohan Kallickal phba->eh_sgl_free_index); 128999bc5d55SJohn Soni Jose 12906733b39aSJayamohan Kallickal if (phba->eh_sgl_hndl_base[phba->eh_sgl_free_index]) { 12916733b39aSJayamohan Kallickal /* 12926733b39aSJayamohan Kallickal * this can happen if clean_task is called on a task that 12936733b39aSJayamohan Kallickal * failed in xmit_task or alloc_pdu. 12946733b39aSJayamohan Kallickal */ 129599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG, 129699bc5d55SJohn Soni Jose "BM_%d : Double Free in eh SGL ," 129799bc5d55SJohn Soni Jose "eh_sgl_free_index=%d\n", 12986733b39aSJayamohan Kallickal phba->eh_sgl_free_index); 12996733b39aSJayamohan Kallickal return; 13006733b39aSJayamohan Kallickal } 13016733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle; 13026733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl++; 13036733b39aSJayamohan Kallickal if (phba->eh_sgl_free_index == 13046733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 1)) 13056733b39aSJayamohan Kallickal phba->eh_sgl_free_index = 0; 13066733b39aSJayamohan Kallickal else 13076733b39aSJayamohan Kallickal phba->eh_sgl_free_index++; 13086733b39aSJayamohan Kallickal } 13096733b39aSJayamohan Kallickal 13106733b39aSJayamohan Kallickal static void 13116733b39aSJayamohan Kallickal be_complete_io(struct beiscsi_conn *beiscsi_conn, 131273133261SJohn Soni Jose struct iscsi_task *task, 131373133261SJohn Soni Jose struct common_sol_cqe *csol_cqe) 13146733b39aSJayamohan Kallickal { 13156733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 13166733b39aSJayamohan Kallickal struct be_status_bhs *sts_bhs = 13176733b39aSJayamohan Kallickal (struct be_status_bhs *)io_task->cmd_bhs; 13186733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 13196733b39aSJayamohan Kallickal unsigned char *sense; 13206733b39aSJayamohan Kallickal u32 resid = 0, exp_cmdsn, max_cmdsn; 13216733b39aSJayamohan Kallickal u8 rsp, status, flags; 13226733b39aSJayamohan Kallickal 132373133261SJohn Soni Jose exp_cmdsn = csol_cqe->exp_cmdsn; 132473133261SJohn Soni Jose max_cmdsn = (csol_cqe->exp_cmdsn + 132573133261SJohn Soni Jose csol_cqe->cmd_wnd - 1); 132673133261SJohn Soni Jose rsp = csol_cqe->i_resp; 132773133261SJohn Soni Jose status = csol_cqe->i_sts; 132873133261SJohn Soni Jose flags = csol_cqe->i_flags; 132973133261SJohn Soni Jose resid = csol_cqe->res_cnt; 133073133261SJohn Soni Jose 1331bd535451SJayamohan Kallickal if (!task->sc) { 1332da334977SJayamohan Kallickal if (io_task->scsi_cmnd) { 1333bd535451SJayamohan Kallickal scsi_dma_unmap(io_task->scsi_cmnd); 1334da334977SJayamohan Kallickal io_task->scsi_cmnd = NULL; 1335da334977SJayamohan Kallickal } 13366733b39aSJayamohan Kallickal 1337bd535451SJayamohan Kallickal return; 1338bd535451SJayamohan Kallickal } 13396733b39aSJayamohan Kallickal task->sc->result = (DID_OK << 16) | status; 13406733b39aSJayamohan Kallickal if (rsp != ISCSI_STATUS_CMD_COMPLETED) { 13416733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 13426733b39aSJayamohan Kallickal goto unmap; 13436733b39aSJayamohan Kallickal } 13446733b39aSJayamohan Kallickal 13456733b39aSJayamohan Kallickal /* bidi not initially supported */ 13466733b39aSJayamohan Kallickal if (flags & (ISCSI_FLAG_CMD_UNDERFLOW | ISCSI_FLAG_CMD_OVERFLOW)) { 13476733b39aSJayamohan Kallickal if (!status && (flags & ISCSI_FLAG_CMD_OVERFLOW)) 13486733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 13496733b39aSJayamohan Kallickal 13506733b39aSJayamohan Kallickal if (flags & ISCSI_FLAG_CMD_UNDERFLOW) { 13516733b39aSJayamohan Kallickal scsi_set_resid(task->sc, resid); 13526733b39aSJayamohan Kallickal if (!status && (scsi_bufflen(task->sc) - resid < 13536733b39aSJayamohan Kallickal task->sc->underflow)) 13546733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 13556733b39aSJayamohan Kallickal } 13566733b39aSJayamohan Kallickal } 13576733b39aSJayamohan Kallickal 13586733b39aSJayamohan Kallickal if (status == SAM_STAT_CHECK_CONDITION) { 13594053a4beSDan Carpenter u16 sense_len; 1360bfead3b2SJayamohan Kallickal unsigned short *slen = (unsigned short *)sts_bhs->sense_info; 13614053a4beSDan Carpenter 13626733b39aSJayamohan Kallickal sense = sts_bhs->sense_info + sizeof(unsigned short); 13634053a4beSDan Carpenter sense_len = be16_to_cpu(*slen); 13646733b39aSJayamohan Kallickal memcpy(task->sc->sense_buffer, sense, 13656733b39aSJayamohan Kallickal min_t(u16, sense_len, SCSI_SENSE_BUFFERSIZE)); 13666733b39aSJayamohan Kallickal } 1367756d29c8SJayamohan Kallickal 136873133261SJohn Soni Jose if (io_task->cmd_bhs->iscsi_hdr.flags & ISCSI_FLAG_CMD_READ) 136973133261SJohn Soni Jose conn->rxdata_octets += resid; 13706733b39aSJayamohan Kallickal unmap: 1371eb1c4692SJohn Soni Jose if (io_task->scsi_cmnd) { 13726733b39aSJayamohan Kallickal scsi_dma_unmap(io_task->scsi_cmnd); 1373da334977SJayamohan Kallickal io_task->scsi_cmnd = NULL; 1374eb1c4692SJohn Soni Jose } 13756733b39aSJayamohan Kallickal iscsi_complete_scsi_task(task, exp_cmdsn, max_cmdsn); 13766733b39aSJayamohan Kallickal } 13776733b39aSJayamohan Kallickal 13786733b39aSJayamohan Kallickal static void 13796733b39aSJayamohan Kallickal be_complete_logout(struct beiscsi_conn *beiscsi_conn, 138073133261SJohn Soni Jose struct iscsi_task *task, 138173133261SJohn Soni Jose struct common_sol_cqe *csol_cqe) 13826733b39aSJayamohan Kallickal { 13836733b39aSJayamohan Kallickal struct iscsi_logout_rsp *hdr; 1384bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 13856733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 13866733b39aSJayamohan Kallickal 13876733b39aSJayamohan Kallickal hdr = (struct iscsi_logout_rsp *)task->hdr; 13887bd6e25cSJayamohan Kallickal hdr->opcode = ISCSI_OP_LOGOUT_RSP; 13896733b39aSJayamohan Kallickal hdr->t2wait = 5; 13906733b39aSJayamohan Kallickal hdr->t2retain = 0; 139173133261SJohn Soni Jose hdr->flags = csol_cqe->i_flags; 139273133261SJohn Soni Jose hdr->response = csol_cqe->i_resp; 1393702dc5e8SJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn); 1394702dc5e8SJayamohan Kallickal hdr->max_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn + 1395702dc5e8SJayamohan Kallickal csol_cqe->cmd_wnd - 1); 139673133261SJohn Soni Jose 13977bd6e25cSJayamohan Kallickal hdr->dlength[0] = 0; 13987bd6e25cSJayamohan Kallickal hdr->dlength[1] = 0; 13997bd6e25cSJayamohan Kallickal hdr->dlength[2] = 0; 14006733b39aSJayamohan Kallickal hdr->hlength = 0; 1401bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 14026733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 14036733b39aSJayamohan Kallickal } 14046733b39aSJayamohan Kallickal 14056733b39aSJayamohan Kallickal static void 14066733b39aSJayamohan Kallickal be_complete_tmf(struct beiscsi_conn *beiscsi_conn, 140773133261SJohn Soni Jose struct iscsi_task *task, 140873133261SJohn Soni Jose struct common_sol_cqe *csol_cqe) 14096733b39aSJayamohan Kallickal { 14106733b39aSJayamohan Kallickal struct iscsi_tm_rsp *hdr; 14116733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 1412bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 14136733b39aSJayamohan Kallickal 14146733b39aSJayamohan Kallickal hdr = (struct iscsi_tm_rsp *)task->hdr; 14157bd6e25cSJayamohan Kallickal hdr->opcode = ISCSI_OP_SCSI_TMFUNC_RSP; 141673133261SJohn Soni Jose hdr->flags = csol_cqe->i_flags; 141773133261SJohn Soni Jose hdr->response = csol_cqe->i_resp; 1418702dc5e8SJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn); 1419702dc5e8SJayamohan Kallickal hdr->max_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn + 142073133261SJohn Soni Jose csol_cqe->cmd_wnd - 1); 142173133261SJohn Soni Jose 1422bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 14236733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 14246733b39aSJayamohan Kallickal } 14256733b39aSJayamohan Kallickal 14266733b39aSJayamohan Kallickal static void 14276733b39aSJayamohan Kallickal hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn, 14286733b39aSJayamohan Kallickal struct beiscsi_hba *phba, struct sol_cqe *psol) 14296733b39aSJayamohan Kallickal { 14306733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 1431bfead3b2SJayamohan Kallickal struct wrb_handle *pwrb_handle = NULL; 14326733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 1433bfead3b2SJayamohan Kallickal struct iscsi_task *task; 1434bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task; 1435a7909b39SJayamohan Kallickal uint16_t wrb_index, cid, cri_index; 14366733b39aSJayamohan Kallickal 14376733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 14382c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) { 143973133261SJohn Soni Jose wrb_index = AMAP_GET_BITS(struct amap_it_dmsg_cqe, 144073133261SJohn Soni Jose wrb_idx, psol); 144173133261SJohn Soni Jose cid = AMAP_GET_BITS(struct amap_it_dmsg_cqe, 144273133261SJohn Soni Jose cid, psol); 14432c9dfd36SJayamohan Kallickal } else { 14442c9dfd36SJayamohan Kallickal wrb_index = AMAP_GET_BITS(struct amap_it_dmsg_cqe_v2, 14452c9dfd36SJayamohan Kallickal wrb_idx, psol); 14462c9dfd36SJayamohan Kallickal cid = AMAP_GET_BITS(struct amap_it_dmsg_cqe_v2, 14472c9dfd36SJayamohan Kallickal cid, psol); 144873133261SJohn Soni Jose } 144973133261SJohn Soni Jose 1450a7909b39SJayamohan Kallickal cri_index = BE_GET_CRI_FROM_CID(cid); 1451a7909b39SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cri_index]; 145273133261SJohn Soni Jose pwrb_handle = pwrb_context->pwrb_handle_basestd[wrb_index]; 1453bfead3b2SJayamohan Kallickal task = pwrb_handle->pio_handle; 145435e66019SJayamohan Kallickal 1455bfead3b2SJayamohan Kallickal io_task = task->dd_data; 14564a4a11b9SJayamohan Kallickal memset(io_task->pwrb_handle->pwrb, 0, sizeof(struct iscsi_wrb)); 14574a4a11b9SJayamohan Kallickal iscsi_put_task(task); 14586733b39aSJayamohan Kallickal } 14596733b39aSJayamohan Kallickal 14606733b39aSJayamohan Kallickal static void 14616733b39aSJayamohan Kallickal be_complete_nopin_resp(struct beiscsi_conn *beiscsi_conn, 146273133261SJohn Soni Jose struct iscsi_task *task, 146373133261SJohn Soni Jose struct common_sol_cqe *csol_cqe) 14646733b39aSJayamohan Kallickal { 14656733b39aSJayamohan Kallickal struct iscsi_nopin *hdr; 14666733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 1467bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 14686733b39aSJayamohan Kallickal 14696733b39aSJayamohan Kallickal hdr = (struct iscsi_nopin *)task->hdr; 147073133261SJohn Soni Jose hdr->flags = csol_cqe->i_flags; 147173133261SJohn Soni Jose hdr->exp_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn); 1472702dc5e8SJayamohan Kallickal hdr->max_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn + 147373133261SJohn Soni Jose csol_cqe->cmd_wnd - 1); 147473133261SJohn Soni Jose 14756733b39aSJayamohan Kallickal hdr->opcode = ISCSI_OP_NOOP_IN; 1476bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 14776733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 14786733b39aSJayamohan Kallickal } 14796733b39aSJayamohan Kallickal 148073133261SJohn Soni Jose static void adapter_get_sol_cqe(struct beiscsi_hba *phba, 148173133261SJohn Soni Jose struct sol_cqe *psol, 148273133261SJohn Soni Jose struct common_sol_cqe *csol_cqe) 148373133261SJohn Soni Jose { 14842c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) { 14852c9dfd36SJayamohan Kallickal csol_cqe->exp_cmdsn = AMAP_GET_BITS(struct amap_sol_cqe, 14862c9dfd36SJayamohan Kallickal i_exp_cmd_sn, psol); 14872c9dfd36SJayamohan Kallickal csol_cqe->res_cnt = AMAP_GET_BITS(struct amap_sol_cqe, 14882c9dfd36SJayamohan Kallickal i_res_cnt, psol); 14892c9dfd36SJayamohan Kallickal csol_cqe->cmd_wnd = AMAP_GET_BITS(struct amap_sol_cqe, 14902c9dfd36SJayamohan Kallickal i_cmd_wnd, psol); 14912c9dfd36SJayamohan Kallickal csol_cqe->wrb_index = AMAP_GET_BITS(struct amap_sol_cqe, 14922c9dfd36SJayamohan Kallickal wrb_index, psol); 14932c9dfd36SJayamohan Kallickal csol_cqe->cid = AMAP_GET_BITS(struct amap_sol_cqe, 14942c9dfd36SJayamohan Kallickal cid, psol); 14952c9dfd36SJayamohan Kallickal csol_cqe->hw_sts = AMAP_GET_BITS(struct amap_sol_cqe, 14962c9dfd36SJayamohan Kallickal hw_sts, psol); 14972c9dfd36SJayamohan Kallickal csol_cqe->i_resp = AMAP_GET_BITS(struct amap_sol_cqe, 14982c9dfd36SJayamohan Kallickal i_resp, psol); 14992c9dfd36SJayamohan Kallickal csol_cqe->i_sts = AMAP_GET_BITS(struct amap_sol_cqe, 15002c9dfd36SJayamohan Kallickal i_sts, psol); 15012c9dfd36SJayamohan Kallickal csol_cqe->i_flags = AMAP_GET_BITS(struct amap_sol_cqe, 15022c9dfd36SJayamohan Kallickal i_flags, psol); 15032c9dfd36SJayamohan Kallickal } else { 150473133261SJohn Soni Jose csol_cqe->exp_cmdsn = AMAP_GET_BITS(struct amap_sol_cqe_v2, 150573133261SJohn Soni Jose i_exp_cmd_sn, psol); 150673133261SJohn Soni Jose csol_cqe->res_cnt = AMAP_GET_BITS(struct amap_sol_cqe_v2, 150773133261SJohn Soni Jose i_res_cnt, psol); 150873133261SJohn Soni Jose csol_cqe->wrb_index = AMAP_GET_BITS(struct amap_sol_cqe_v2, 150973133261SJohn Soni Jose wrb_index, psol); 151073133261SJohn Soni Jose csol_cqe->cid = AMAP_GET_BITS(struct amap_sol_cqe_v2, 151173133261SJohn Soni Jose cid, psol); 151273133261SJohn Soni Jose csol_cqe->hw_sts = AMAP_GET_BITS(struct amap_sol_cqe_v2, 151373133261SJohn Soni Jose hw_sts, psol); 1514702dc5e8SJayamohan Kallickal csol_cqe->cmd_wnd = AMAP_GET_BITS(struct amap_sol_cqe_v2, 151573133261SJohn Soni Jose i_cmd_wnd, psol); 151673133261SJohn Soni Jose if (AMAP_GET_BITS(struct amap_sol_cqe_v2, 151773133261SJohn Soni Jose cmd_cmpl, psol)) 151873133261SJohn Soni Jose csol_cqe->i_sts = AMAP_GET_BITS(struct amap_sol_cqe_v2, 151973133261SJohn Soni Jose i_sts, psol); 152073133261SJohn Soni Jose else 152173133261SJohn Soni Jose csol_cqe->i_resp = AMAP_GET_BITS(struct amap_sol_cqe_v2, 152273133261SJohn Soni Jose i_sts, psol); 152373133261SJohn Soni Jose if (AMAP_GET_BITS(struct amap_sol_cqe_v2, 152473133261SJohn Soni Jose u, psol)) 152573133261SJohn Soni Jose csol_cqe->i_flags = ISCSI_FLAG_CMD_UNDERFLOW; 152673133261SJohn Soni Jose 152773133261SJohn Soni Jose if (AMAP_GET_BITS(struct amap_sol_cqe_v2, 152873133261SJohn Soni Jose o, psol)) 152973133261SJohn Soni Jose csol_cqe->i_flags |= ISCSI_FLAG_CMD_OVERFLOW; 153073133261SJohn Soni Jose } 153173133261SJohn Soni Jose } 153273133261SJohn Soni Jose 153373133261SJohn Soni Jose 15346733b39aSJayamohan Kallickal static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn, 15356733b39aSJayamohan Kallickal struct beiscsi_hba *phba, struct sol_cqe *psol) 15366733b39aSJayamohan Kallickal { 15376733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 15386733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 15396733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 15406733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 15416733b39aSJayamohan Kallickal struct iscsi_task *task; 1542bfead3b2SJayamohan Kallickal unsigned int type; 15436733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 15446733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 154573133261SJohn Soni Jose struct common_sol_cqe csol_cqe = {0}; 1546a7909b39SJayamohan Kallickal uint16_t cri_index = 0; 15476733b39aSJayamohan Kallickal 15486733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 154973133261SJohn Soni Jose 155073133261SJohn Soni Jose /* Copy the elements to a common structure */ 155173133261SJohn Soni Jose adapter_get_sol_cqe(phba, psol, &csol_cqe); 155273133261SJohn Soni Jose 1553a7909b39SJayamohan Kallickal cri_index = BE_GET_CRI_FROM_CID(csol_cqe.cid); 1554a7909b39SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cri_index]; 155573133261SJohn Soni Jose 155673133261SJohn Soni Jose pwrb_handle = pwrb_context->pwrb_handle_basestd[ 155773133261SJohn Soni Jose csol_cqe.wrb_index]; 155873133261SJohn Soni Jose 15596733b39aSJayamohan Kallickal task = pwrb_handle->pio_handle; 15606733b39aSJayamohan Kallickal pwrb = pwrb_handle->pwrb; 156173133261SJohn Soni Jose type = ((struct beiscsi_io_task *)task->dd_data)->wrb_type; 156232951dd8SJayamohan Kallickal 1563659743b0SShlomo Pongratz spin_lock_bh(&session->back_lock); 1564bfead3b2SJayamohan Kallickal switch (type) { 15656733b39aSJayamohan Kallickal case HWH_TYPE_IO: 15666733b39aSJayamohan Kallickal case HWH_TYPE_IO_RD: 15676733b39aSJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == 1568dafab8e0SJayamohan Kallickal ISCSI_OP_NOOP_OUT) 156973133261SJohn Soni Jose be_complete_nopin_resp(beiscsi_conn, task, &csol_cqe); 1570dafab8e0SJayamohan Kallickal else 157173133261SJohn Soni Jose be_complete_io(beiscsi_conn, task, &csol_cqe); 15726733b39aSJayamohan Kallickal break; 15736733b39aSJayamohan Kallickal 15746733b39aSJayamohan Kallickal case HWH_TYPE_LOGOUT: 1575dafab8e0SJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT) 157673133261SJohn Soni Jose be_complete_logout(beiscsi_conn, task, &csol_cqe); 1577dafab8e0SJayamohan Kallickal else 157873133261SJohn Soni Jose be_complete_tmf(beiscsi_conn, task, &csol_cqe); 15796733b39aSJayamohan Kallickal break; 15806733b39aSJayamohan Kallickal 15816733b39aSJayamohan Kallickal case HWH_TYPE_LOGIN: 158299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 158399bc5d55SJohn Soni Jose BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, 158499bc5d55SJohn Soni Jose "BM_%d :\t\t No HWH_TYPE_LOGIN Expected in" 158599bc5d55SJohn Soni Jose " hwi_complete_cmd- Solicited path\n"); 15866733b39aSJayamohan Kallickal break; 15876733b39aSJayamohan Kallickal 15886733b39aSJayamohan Kallickal case HWH_TYPE_NOP: 158973133261SJohn Soni Jose be_complete_nopin_resp(beiscsi_conn, task, &csol_cqe); 15906733b39aSJayamohan Kallickal break; 15916733b39aSJayamohan Kallickal 15926733b39aSJayamohan Kallickal default: 159399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_WARNING, 159499bc5d55SJohn Soni Jose BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, 159599bc5d55SJohn Soni Jose "BM_%d : In hwi_complete_cmd, unknown type = %d" 1596bfead3b2SJayamohan Kallickal "wrb_index 0x%x CID 0x%x\n", type, 159773133261SJohn Soni Jose csol_cqe.wrb_index, 159873133261SJohn Soni Jose csol_cqe.cid); 15996733b39aSJayamohan Kallickal break; 16006733b39aSJayamohan Kallickal } 160135e66019SJayamohan Kallickal 1602659743b0SShlomo Pongratz spin_unlock_bh(&session->back_lock); 16036733b39aSJayamohan Kallickal } 16046733b39aSJayamohan Kallickal 16056733b39aSJayamohan Kallickal static struct list_head *hwi_get_async_busy_list(struct hwi_async_pdu_context 16066733b39aSJayamohan Kallickal *pasync_ctx, unsigned int is_header, 16076733b39aSJayamohan Kallickal unsigned int host_write_ptr) 16086733b39aSJayamohan Kallickal { 16096733b39aSJayamohan Kallickal if (is_header) 16106733b39aSJayamohan Kallickal return &pasync_ctx->async_entry[host_write_ptr]. 16116733b39aSJayamohan Kallickal header_busy_list; 16126733b39aSJayamohan Kallickal else 16136733b39aSJayamohan Kallickal return &pasync_ctx->async_entry[host_write_ptr].data_busy_list; 16146733b39aSJayamohan Kallickal } 16156733b39aSJayamohan Kallickal 16166733b39aSJayamohan Kallickal static struct async_pdu_handle * 16176733b39aSJayamohan Kallickal hwi_get_async_handle(struct beiscsi_hba *phba, 16186733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn, 16196733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, 16206733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe, unsigned int *pcq_index) 16216733b39aSJayamohan Kallickal { 16226733b39aSJayamohan Kallickal struct be_bus_address phys_addr; 16236733b39aSJayamohan Kallickal struct list_head *pbusy_list; 16246733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 16256733b39aSJayamohan Kallickal unsigned char is_header = 0; 162673133261SJohn Soni Jose unsigned int index, dpl; 162773133261SJohn Soni Jose 16282c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) { 162973133261SJohn Soni Jose dpl = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe, 163073133261SJohn Soni Jose dpl, pdpdu_cqe); 163173133261SJohn Soni Jose index = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe, 163273133261SJohn Soni Jose index, pdpdu_cqe); 16332c9dfd36SJayamohan Kallickal } else { 16342c9dfd36SJayamohan Kallickal dpl = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2, 16352c9dfd36SJayamohan Kallickal dpl, pdpdu_cqe); 16362c9dfd36SJayamohan Kallickal index = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2, 16372c9dfd36SJayamohan Kallickal index, pdpdu_cqe); 163873133261SJohn Soni Jose } 16396733b39aSJayamohan Kallickal 16406733b39aSJayamohan Kallickal phys_addr.u.a32.address_lo = 164173133261SJohn Soni Jose (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 164273133261SJohn Soni Jose db_addr_lo) / 32] - dpl); 16436733b39aSJayamohan Kallickal phys_addr.u.a32.address_hi = 164473133261SJohn Soni Jose pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 164573133261SJohn Soni Jose db_addr_hi) / 32]; 16466733b39aSJayamohan Kallickal 16476733b39aSJayamohan Kallickal phys_addr.u.a64.address = 16486733b39aSJayamohan Kallickal *((unsigned long long *)(&phys_addr.u.a64.address)); 16496733b39aSJayamohan Kallickal 16506733b39aSJayamohan Kallickal switch (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, code) / 32] 16516733b39aSJayamohan Kallickal & PDUCQE_CODE_MASK) { 16526733b39aSJayamohan Kallickal case UNSOL_HDR_NOTIFY: 16536733b39aSJayamohan Kallickal is_header = 1; 16546733b39aSJayamohan Kallickal 165573133261SJohn Soni Jose pbusy_list = hwi_get_async_busy_list(pasync_ctx, 165673133261SJohn Soni Jose is_header, index); 16576733b39aSJayamohan Kallickal break; 16586733b39aSJayamohan Kallickal case UNSOL_DATA_NOTIFY: 165973133261SJohn Soni Jose pbusy_list = hwi_get_async_busy_list(pasync_ctx, 166073133261SJohn Soni Jose is_header, index); 16616733b39aSJayamohan Kallickal break; 16626733b39aSJayamohan Kallickal default: 16636733b39aSJayamohan Kallickal pbusy_list = NULL; 166499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_WARNING, 166599bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 166699bc5d55SJohn Soni Jose "BM_%d : Unexpected code=%d\n", 16676733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 16686733b39aSJayamohan Kallickal code) / 32] & PDUCQE_CODE_MASK); 16696733b39aSJayamohan Kallickal return NULL; 16706733b39aSJayamohan Kallickal } 16716733b39aSJayamohan Kallickal 16726733b39aSJayamohan Kallickal WARN_ON(list_empty(pbusy_list)); 16736733b39aSJayamohan Kallickal list_for_each_entry(pasync_handle, pbusy_list, link) { 1674dc63aac6SJayamohan Kallickal if (pasync_handle->pa.u.a64.address == phys_addr.u.a64.address) 16756733b39aSJayamohan Kallickal break; 16766733b39aSJayamohan Kallickal } 16776733b39aSJayamohan Kallickal 16786733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 16796733b39aSJayamohan Kallickal 16808a86e833SJayamohan Kallickal pasync_handle->cri = BE_GET_ASYNC_CRI_FROM_CID( 16818a86e833SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid); 16826733b39aSJayamohan Kallickal pasync_handle->is_header = is_header; 168373133261SJohn Soni Jose pasync_handle->buffer_len = dpl; 168473133261SJohn Soni Jose *pcq_index = index; 16856733b39aSJayamohan Kallickal 16866733b39aSJayamohan Kallickal return pasync_handle; 16876733b39aSJayamohan Kallickal } 16886733b39aSJayamohan Kallickal 16896733b39aSJayamohan Kallickal static unsigned int 169099bc5d55SJohn Soni Jose hwi_update_async_writables(struct beiscsi_hba *phba, 169199bc5d55SJohn Soni Jose struct hwi_async_pdu_context *pasync_ctx, 16926733b39aSJayamohan Kallickal unsigned int is_header, unsigned int cq_index) 16936733b39aSJayamohan Kallickal { 16946733b39aSJayamohan Kallickal struct list_head *pbusy_list; 16956733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 16966733b39aSJayamohan Kallickal unsigned int num_entries, writables = 0; 16976733b39aSJayamohan Kallickal unsigned int *pep_read_ptr, *pwritables; 16986733b39aSJayamohan Kallickal 1699dc63aac6SJayamohan Kallickal num_entries = pasync_ctx->num_entries; 17006733b39aSJayamohan Kallickal if (is_header) { 17016733b39aSJayamohan Kallickal pep_read_ptr = &pasync_ctx->async_header.ep_read_ptr; 17026733b39aSJayamohan Kallickal pwritables = &pasync_ctx->async_header.writables; 17036733b39aSJayamohan Kallickal } else { 17046733b39aSJayamohan Kallickal pep_read_ptr = &pasync_ctx->async_data.ep_read_ptr; 17056733b39aSJayamohan Kallickal pwritables = &pasync_ctx->async_data.writables; 17066733b39aSJayamohan Kallickal } 17076733b39aSJayamohan Kallickal 17086733b39aSJayamohan Kallickal while ((*pep_read_ptr) != cq_index) { 17096733b39aSJayamohan Kallickal (*pep_read_ptr)++; 17106733b39aSJayamohan Kallickal *pep_read_ptr = (*pep_read_ptr) % num_entries; 17116733b39aSJayamohan Kallickal 17126733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, is_header, 17136733b39aSJayamohan Kallickal *pep_read_ptr); 17146733b39aSJayamohan Kallickal if (writables == 0) 17156733b39aSJayamohan Kallickal WARN_ON(list_empty(pbusy_list)); 17166733b39aSJayamohan Kallickal 17176733b39aSJayamohan Kallickal if (!list_empty(pbusy_list)) { 17186733b39aSJayamohan Kallickal pasync_handle = list_entry(pbusy_list->next, 17196733b39aSJayamohan Kallickal struct async_pdu_handle, 17206733b39aSJayamohan Kallickal link); 17216733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 17226733b39aSJayamohan Kallickal pasync_handle->consumed = 1; 17236733b39aSJayamohan Kallickal } 17246733b39aSJayamohan Kallickal 17256733b39aSJayamohan Kallickal writables++; 17266733b39aSJayamohan Kallickal } 17276733b39aSJayamohan Kallickal 17286733b39aSJayamohan Kallickal if (!writables) { 172999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 173099bc5d55SJohn Soni Jose BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, 173199bc5d55SJohn Soni Jose "BM_%d : Duplicate notification received - index 0x%x!!\n", 17326733b39aSJayamohan Kallickal cq_index); 17336733b39aSJayamohan Kallickal WARN_ON(1); 17346733b39aSJayamohan Kallickal } 17356733b39aSJayamohan Kallickal 17366733b39aSJayamohan Kallickal *pwritables = *pwritables + writables; 17376733b39aSJayamohan Kallickal return 0; 17386733b39aSJayamohan Kallickal } 17396733b39aSJayamohan Kallickal 17409728d8d0SJayamohan Kallickal static void hwi_free_async_msg(struct beiscsi_hba *phba, 17418a86e833SJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, 17426733b39aSJayamohan Kallickal unsigned int cri) 17436733b39aSJayamohan Kallickal { 17446733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle, *tmp_handle; 17456733b39aSJayamohan Kallickal struct list_head *plist; 17466733b39aSJayamohan Kallickal 17476733b39aSJayamohan Kallickal plist = &pasync_ctx->async_entry[cri].wait_queue.list; 17486733b39aSJayamohan Kallickal list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link) { 17496733b39aSJayamohan Kallickal list_del(&pasync_handle->link); 17506733b39aSJayamohan Kallickal 17519728d8d0SJayamohan Kallickal if (pasync_handle->is_header) { 17526733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 17536733b39aSJayamohan Kallickal &pasync_ctx->async_header.free_list); 17546733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries++; 17556733b39aSJayamohan Kallickal } else { 17566733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 17576733b39aSJayamohan Kallickal &pasync_ctx->async_data.free_list); 17586733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries++; 17596733b39aSJayamohan Kallickal } 17606733b39aSJayamohan Kallickal } 17616733b39aSJayamohan Kallickal 17626733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[cri].wait_queue.list); 17636733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_received = 0; 17646733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0; 17656733b39aSJayamohan Kallickal } 17666733b39aSJayamohan Kallickal 17676733b39aSJayamohan Kallickal static struct phys_addr * 17686733b39aSJayamohan Kallickal hwi_get_ring_address(struct hwi_async_pdu_context *pasync_ctx, 17696733b39aSJayamohan Kallickal unsigned int is_header, unsigned int host_write_ptr) 17706733b39aSJayamohan Kallickal { 17716733b39aSJayamohan Kallickal struct phys_addr *pasync_sge = NULL; 17726733b39aSJayamohan Kallickal 17736733b39aSJayamohan Kallickal if (is_header) 17746733b39aSJayamohan Kallickal pasync_sge = pasync_ctx->async_header.ring_base; 17756733b39aSJayamohan Kallickal else 17766733b39aSJayamohan Kallickal pasync_sge = pasync_ctx->async_data.ring_base; 17776733b39aSJayamohan Kallickal 17786733b39aSJayamohan Kallickal return pasync_sge + host_write_ptr; 17796733b39aSJayamohan Kallickal } 17806733b39aSJayamohan Kallickal 17816733b39aSJayamohan Kallickal static void hwi_post_async_buffers(struct beiscsi_hba *phba, 17828a86e833SJayamohan Kallickal unsigned int is_header, uint8_t ulp_num) 17836733b39aSJayamohan Kallickal { 17846733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 17856733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 17866733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 17876733b39aSJayamohan Kallickal struct list_head *pfree_link, *pbusy_list; 17886733b39aSJayamohan Kallickal struct phys_addr *pasync_sge; 17896733b39aSJayamohan Kallickal unsigned int ring_id, num_entries; 17908a86e833SJayamohan Kallickal unsigned int host_write_num, doorbell_offset; 17916733b39aSJayamohan Kallickal unsigned int writables; 17926733b39aSJayamohan Kallickal unsigned int i = 0; 17936733b39aSJayamohan Kallickal u32 doorbell = 0; 17946733b39aSJayamohan Kallickal 17956733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 17968a86e833SJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr, ulp_num); 1797dc63aac6SJayamohan Kallickal num_entries = pasync_ctx->num_entries; 17986733b39aSJayamohan Kallickal 17996733b39aSJayamohan Kallickal if (is_header) { 18006733b39aSJayamohan Kallickal writables = min(pasync_ctx->async_header.writables, 18016733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries); 18026733b39aSJayamohan Kallickal pfree_link = pasync_ctx->async_header.free_list.next; 18036733b39aSJayamohan Kallickal host_write_num = pasync_ctx->async_header.host_write_ptr; 18048a86e833SJayamohan Kallickal ring_id = phwi_ctrlr->default_pdu_hdr[ulp_num].id; 18058a86e833SJayamohan Kallickal doorbell_offset = phwi_ctrlr->default_pdu_hdr[ulp_num]. 18068a86e833SJayamohan Kallickal doorbell_offset; 18076733b39aSJayamohan Kallickal } else { 18086733b39aSJayamohan Kallickal writables = min(pasync_ctx->async_data.writables, 18096733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries); 18106733b39aSJayamohan Kallickal pfree_link = pasync_ctx->async_data.free_list.next; 18116733b39aSJayamohan Kallickal host_write_num = pasync_ctx->async_data.host_write_ptr; 18128a86e833SJayamohan Kallickal ring_id = phwi_ctrlr->default_pdu_data[ulp_num].id; 18138a86e833SJayamohan Kallickal doorbell_offset = phwi_ctrlr->default_pdu_data[ulp_num]. 18148a86e833SJayamohan Kallickal doorbell_offset; 18156733b39aSJayamohan Kallickal } 18166733b39aSJayamohan Kallickal 18176733b39aSJayamohan Kallickal writables = (writables / 8) * 8; 18186733b39aSJayamohan Kallickal if (writables) { 18196733b39aSJayamohan Kallickal for (i = 0; i < writables; i++) { 18206733b39aSJayamohan Kallickal pbusy_list = 18216733b39aSJayamohan Kallickal hwi_get_async_busy_list(pasync_ctx, is_header, 18226733b39aSJayamohan Kallickal host_write_num); 18236733b39aSJayamohan Kallickal pasync_handle = 18246733b39aSJayamohan Kallickal list_entry(pfree_link, struct async_pdu_handle, 18256733b39aSJayamohan Kallickal link); 18266733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 18276733b39aSJayamohan Kallickal pasync_handle->consumed = 0; 18286733b39aSJayamohan Kallickal 18296733b39aSJayamohan Kallickal pfree_link = pfree_link->next; 18306733b39aSJayamohan Kallickal 18316733b39aSJayamohan Kallickal pasync_sge = hwi_get_ring_address(pasync_ctx, 18326733b39aSJayamohan Kallickal is_header, host_write_num); 18336733b39aSJayamohan Kallickal 18346733b39aSJayamohan Kallickal pasync_sge->hi = pasync_handle->pa.u.a32.address_lo; 18356733b39aSJayamohan Kallickal pasync_sge->lo = pasync_handle->pa.u.a32.address_hi; 18366733b39aSJayamohan Kallickal 18376733b39aSJayamohan Kallickal list_move(&pasync_handle->link, pbusy_list); 18386733b39aSJayamohan Kallickal 18396733b39aSJayamohan Kallickal host_write_num++; 18406733b39aSJayamohan Kallickal host_write_num = host_write_num % num_entries; 18416733b39aSJayamohan Kallickal } 18426733b39aSJayamohan Kallickal 18436733b39aSJayamohan Kallickal if (is_header) { 18446733b39aSJayamohan Kallickal pasync_ctx->async_header.host_write_ptr = 18456733b39aSJayamohan Kallickal host_write_num; 18466733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries -= writables; 18476733b39aSJayamohan Kallickal pasync_ctx->async_header.writables -= writables; 18486733b39aSJayamohan Kallickal pasync_ctx->async_header.busy_entries += writables; 18496733b39aSJayamohan Kallickal } else { 18506733b39aSJayamohan Kallickal pasync_ctx->async_data.host_write_ptr = host_write_num; 18516733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries -= writables; 18526733b39aSJayamohan Kallickal pasync_ctx->async_data.writables -= writables; 18536733b39aSJayamohan Kallickal pasync_ctx->async_data.busy_entries += writables; 18546733b39aSJayamohan Kallickal } 18556733b39aSJayamohan Kallickal 18566733b39aSJayamohan Kallickal doorbell |= ring_id & DB_DEF_PDU_RING_ID_MASK; 18576733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_REARM_SHIFT; 18586733b39aSJayamohan Kallickal doorbell |= 0 << DB_DEF_PDU_EVENT_SHIFT; 18596733b39aSJayamohan Kallickal doorbell |= (writables & DB_DEF_PDU_CQPROC_MASK) 18606733b39aSJayamohan Kallickal << DB_DEF_PDU_CQPROC_SHIFT; 18616733b39aSJayamohan Kallickal 18628a86e833SJayamohan Kallickal iowrite32(doorbell, phba->db_va + doorbell_offset); 18636733b39aSJayamohan Kallickal } 18646733b39aSJayamohan Kallickal } 18656733b39aSJayamohan Kallickal 18666733b39aSJayamohan Kallickal static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba, 18676733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn, 18686733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe) 18696733b39aSJayamohan Kallickal { 18706733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 18716733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 18726733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 18736733b39aSJayamohan Kallickal unsigned int cq_index = -1; 18748a86e833SJayamohan Kallickal uint16_t cri_index = BE_GET_CRI_FROM_CID( 18758a86e833SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid); 18766733b39aSJayamohan Kallickal 18776733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 18788a86e833SJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr, 18798a86e833SJayamohan Kallickal BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, 18808a86e833SJayamohan Kallickal cri_index)); 18816733b39aSJayamohan Kallickal 18826733b39aSJayamohan Kallickal pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx, 18836733b39aSJayamohan Kallickal pdpdu_cqe, &cq_index); 18846733b39aSJayamohan Kallickal BUG_ON(pasync_handle->is_header != 0); 18856733b39aSJayamohan Kallickal if (pasync_handle->consumed == 0) 188699bc5d55SJohn Soni Jose hwi_update_async_writables(phba, pasync_ctx, 188799bc5d55SJohn Soni Jose pasync_handle->is_header, cq_index); 18886733b39aSJayamohan Kallickal 18898a86e833SJayamohan Kallickal hwi_free_async_msg(phba, pasync_ctx, pasync_handle->cri); 18908a86e833SJayamohan Kallickal hwi_post_async_buffers(phba, pasync_handle->is_header, 18918a86e833SJayamohan Kallickal BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, 18928a86e833SJayamohan Kallickal cri_index)); 18936733b39aSJayamohan Kallickal } 18946733b39aSJayamohan Kallickal 18956733b39aSJayamohan Kallickal static unsigned int 18966733b39aSJayamohan Kallickal hwi_fwd_async_msg(struct beiscsi_conn *beiscsi_conn, 18976733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 18986733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, unsigned short cri) 18996733b39aSJayamohan Kallickal { 19006733b39aSJayamohan Kallickal struct list_head *plist; 19016733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 19026733b39aSJayamohan Kallickal void *phdr = NULL; 19036733b39aSJayamohan Kallickal unsigned int hdr_len = 0, buf_len = 0; 19046733b39aSJayamohan Kallickal unsigned int status, index = 0, offset = 0; 19056733b39aSJayamohan Kallickal void *pfirst_buffer = NULL; 19066733b39aSJayamohan Kallickal unsigned int num_buf = 0; 19076733b39aSJayamohan Kallickal 19086733b39aSJayamohan Kallickal plist = &pasync_ctx->async_entry[cri].wait_queue.list; 19096733b39aSJayamohan Kallickal 19106733b39aSJayamohan Kallickal list_for_each_entry(pasync_handle, plist, link) { 19116733b39aSJayamohan Kallickal if (index == 0) { 19126733b39aSJayamohan Kallickal phdr = pasync_handle->pbuffer; 19136733b39aSJayamohan Kallickal hdr_len = pasync_handle->buffer_len; 19146733b39aSJayamohan Kallickal } else { 19156733b39aSJayamohan Kallickal buf_len = pasync_handle->buffer_len; 19166733b39aSJayamohan Kallickal if (!num_buf) { 19176733b39aSJayamohan Kallickal pfirst_buffer = pasync_handle->pbuffer; 19186733b39aSJayamohan Kallickal num_buf++; 19196733b39aSJayamohan Kallickal } 19206733b39aSJayamohan Kallickal memcpy(pfirst_buffer + offset, 19216733b39aSJayamohan Kallickal pasync_handle->pbuffer, buf_len); 1922f2ba02b8SJayamohan Kallickal offset += buf_len; 19236733b39aSJayamohan Kallickal } 19246733b39aSJayamohan Kallickal index++; 19256733b39aSJayamohan Kallickal } 19266733b39aSJayamohan Kallickal 19276733b39aSJayamohan Kallickal status = beiscsi_process_async_pdu(beiscsi_conn, phba, 19286733b39aSJayamohan Kallickal phdr, hdr_len, pfirst_buffer, 1929f2ba02b8SJayamohan Kallickal offset); 19306733b39aSJayamohan Kallickal 19318a86e833SJayamohan Kallickal hwi_free_async_msg(phba, pasync_ctx, cri); 19326733b39aSJayamohan Kallickal return 0; 19336733b39aSJayamohan Kallickal } 19346733b39aSJayamohan Kallickal 19356733b39aSJayamohan Kallickal static unsigned int 19366733b39aSJayamohan Kallickal hwi_gather_async_pdu(struct beiscsi_conn *beiscsi_conn, 19376733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 19386733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle) 19396733b39aSJayamohan Kallickal { 19406733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 19416733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 19426733b39aSJayamohan Kallickal unsigned int bytes_needed = 0, status = 0; 19436733b39aSJayamohan Kallickal unsigned short cri = pasync_handle->cri; 19446733b39aSJayamohan Kallickal struct pdu_base *ppdu; 19456733b39aSJayamohan Kallickal 19466733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 19478a86e833SJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr, 19488a86e833SJayamohan Kallickal BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, 19498a86e833SJayamohan Kallickal BE_GET_CRI_FROM_CID(beiscsi_conn-> 19508a86e833SJayamohan Kallickal beiscsi_conn_cid))); 19516733b39aSJayamohan Kallickal 19526733b39aSJayamohan Kallickal list_del(&pasync_handle->link); 19536733b39aSJayamohan Kallickal if (pasync_handle->is_header) { 19546733b39aSJayamohan Kallickal pasync_ctx->async_header.busy_entries--; 19556733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) { 19568a86e833SJayamohan Kallickal hwi_free_async_msg(phba, pasync_ctx, cri); 19576733b39aSJayamohan Kallickal BUG(); 19586733b39aSJayamohan Kallickal } 19596733b39aSJayamohan Kallickal 19606733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0; 19616733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_received = 1; 19626733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_len = 19636733b39aSJayamohan Kallickal (unsigned short)pasync_handle->buffer_len; 19646733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 19656733b39aSJayamohan Kallickal &pasync_ctx->async_entry[cri].wait_queue.list); 19666733b39aSJayamohan Kallickal 19676733b39aSJayamohan Kallickal ppdu = pasync_handle->pbuffer; 19686733b39aSJayamohan Kallickal bytes_needed = ((((ppdu->dw[offsetof(struct amap_pdu_base, 19696733b39aSJayamohan Kallickal data_len_hi) / 32] & PDUBASE_DATALENHI_MASK) << 8) & 19706733b39aSJayamohan Kallickal 0xFFFF0000) | ((be16_to_cpu((ppdu-> 19716733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_base, data_len_lo) / 32] 19726733b39aSJayamohan Kallickal & PDUBASE_DATALENLO_MASK) >> 16)) & 0x0000FFFF)); 19736733b39aSJayamohan Kallickal 19746733b39aSJayamohan Kallickal if (status == 0) { 19756733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_needed = 19766733b39aSJayamohan Kallickal bytes_needed; 19776733b39aSJayamohan Kallickal 19786733b39aSJayamohan Kallickal if (bytes_needed == 0) 19796733b39aSJayamohan Kallickal status = hwi_fwd_async_msg(beiscsi_conn, phba, 19806733b39aSJayamohan Kallickal pasync_ctx, cri); 19816733b39aSJayamohan Kallickal } 19826733b39aSJayamohan Kallickal } else { 19836733b39aSJayamohan Kallickal pasync_ctx->async_data.busy_entries--; 19846733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) { 19856733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 19866733b39aSJayamohan Kallickal &pasync_ctx->async_entry[cri].wait_queue. 19876733b39aSJayamohan Kallickal list); 19886733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue. 19896733b39aSJayamohan Kallickal bytes_received += 19906733b39aSJayamohan Kallickal (unsigned short)pasync_handle->buffer_len; 19916733b39aSJayamohan Kallickal 19926733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue. 19936733b39aSJayamohan Kallickal bytes_received >= 19946733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue. 19956733b39aSJayamohan Kallickal bytes_needed) 19966733b39aSJayamohan Kallickal status = hwi_fwd_async_msg(beiscsi_conn, phba, 19976733b39aSJayamohan Kallickal pasync_ctx, cri); 19986733b39aSJayamohan Kallickal } 19996733b39aSJayamohan Kallickal } 20006733b39aSJayamohan Kallickal return status; 20016733b39aSJayamohan Kallickal } 20026733b39aSJayamohan Kallickal 20036733b39aSJayamohan Kallickal static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn, 20046733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 20056733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe) 20066733b39aSJayamohan Kallickal { 20076733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 20086733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 20096733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 20106733b39aSJayamohan Kallickal unsigned int cq_index = -1; 20118a86e833SJayamohan Kallickal uint16_t cri_index = BE_GET_CRI_FROM_CID( 20128a86e833SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid); 20136733b39aSJayamohan Kallickal 20146733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 20158a86e833SJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr, 20168a86e833SJayamohan Kallickal BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, 20178a86e833SJayamohan Kallickal cri_index)); 20188a86e833SJayamohan Kallickal 20196733b39aSJayamohan Kallickal pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx, 20206733b39aSJayamohan Kallickal pdpdu_cqe, &cq_index); 20216733b39aSJayamohan Kallickal 20226733b39aSJayamohan Kallickal if (pasync_handle->consumed == 0) 202399bc5d55SJohn Soni Jose hwi_update_async_writables(phba, pasync_ctx, 202499bc5d55SJohn Soni Jose pasync_handle->is_header, cq_index); 202599bc5d55SJohn Soni Jose 20266733b39aSJayamohan Kallickal hwi_gather_async_pdu(beiscsi_conn, phba, pasync_handle); 20278a86e833SJayamohan Kallickal hwi_post_async_buffers(phba, pasync_handle->is_header, 20288a86e833SJayamohan Kallickal BEISCSI_GET_ULP_FROM_CRI( 20298a86e833SJayamohan Kallickal phwi_ctrlr, cri_index)); 20306733b39aSJayamohan Kallickal } 20316733b39aSJayamohan Kallickal 2032756d29c8SJayamohan Kallickal static void beiscsi_process_mcc_isr(struct beiscsi_hba *phba) 2033756d29c8SJayamohan Kallickal { 2034756d29c8SJayamohan Kallickal struct be_queue_info *mcc_cq; 2035756d29c8SJayamohan Kallickal struct be_mcc_compl *mcc_compl; 2036756d29c8SJayamohan Kallickal unsigned int num_processed = 0; 2037756d29c8SJayamohan Kallickal 2038756d29c8SJayamohan Kallickal mcc_cq = &phba->ctrl.mcc_obj.cq; 2039756d29c8SJayamohan Kallickal mcc_compl = queue_tail_node(mcc_cq); 2040756d29c8SJayamohan Kallickal mcc_compl->flags = le32_to_cpu(mcc_compl->flags); 2041756d29c8SJayamohan Kallickal while (mcc_compl->flags & CQE_FLAGS_VALID_MASK) { 2042756d29c8SJayamohan Kallickal 2043756d29c8SJayamohan Kallickal if (num_processed >= 32) { 2044756d29c8SJayamohan Kallickal hwi_ring_cq_db(phba, mcc_cq->id, 2045756d29c8SJayamohan Kallickal num_processed, 0, 0); 2046756d29c8SJayamohan Kallickal num_processed = 0; 2047756d29c8SJayamohan Kallickal } 2048756d29c8SJayamohan Kallickal if (mcc_compl->flags & CQE_FLAGS_ASYNC_MASK) { 204953aefe25SJitendra Bhivare beiscsi_process_async_event(phba, mcc_compl); 2050756d29c8SJayamohan Kallickal } else if (mcc_compl->flags & CQE_FLAGS_COMPLETED_MASK) { 2051756d29c8SJayamohan Kallickal be_mcc_compl_process_isr(&phba->ctrl, mcc_compl); 2052756d29c8SJayamohan Kallickal atomic_dec(&phba->ctrl.mcc_obj.q.used); 2053756d29c8SJayamohan Kallickal } 2054756d29c8SJayamohan Kallickal 2055756d29c8SJayamohan Kallickal mcc_compl->flags = 0; 2056756d29c8SJayamohan Kallickal queue_tail_inc(mcc_cq); 2057756d29c8SJayamohan Kallickal mcc_compl = queue_tail_node(mcc_cq); 2058756d29c8SJayamohan Kallickal mcc_compl->flags = le32_to_cpu(mcc_compl->flags); 2059756d29c8SJayamohan Kallickal num_processed++; 2060756d29c8SJayamohan Kallickal } 2061756d29c8SJayamohan Kallickal 2062756d29c8SJayamohan Kallickal if (num_processed > 0) 2063756d29c8SJayamohan Kallickal hwi_ring_cq_db(phba, mcc_cq->id, num_processed, 1, 0); 2064756d29c8SJayamohan Kallickal 2065756d29c8SJayamohan Kallickal } 2066bfead3b2SJayamohan Kallickal 20676763daaeSJohn Soni Jose /** 20686763daaeSJohn Soni Jose * beiscsi_process_cq()- Process the Completion Queue 20696763daaeSJohn Soni Jose * @pbe_eq: Event Q on which the Completion has come 20706763daaeSJohn Soni Jose * 20716763daaeSJohn Soni Jose * return 20726763daaeSJohn Soni Jose * Number of Completion Entries processed. 20736763daaeSJohn Soni Jose **/ 2074b7ab35b1SJayamohan Kallickal unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq) 20756733b39aSJayamohan Kallickal { 20766733b39aSJayamohan Kallickal struct be_queue_info *cq; 20776733b39aSJayamohan Kallickal struct sol_cqe *sol; 20786733b39aSJayamohan Kallickal struct dmsg_cqe *dmsg; 20796733b39aSJayamohan Kallickal unsigned int num_processed = 0; 20806733b39aSJayamohan Kallickal unsigned int tot_nump = 0; 20810a513dd8SJohn Soni Jose unsigned short code = 0, cid = 0; 2082a7909b39SJayamohan Kallickal uint16_t cri_index = 0; 20836733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 2084c2462288SJayamohan Kallickal struct beiscsi_endpoint *beiscsi_ep; 2085c2462288SJayamohan Kallickal struct iscsi_endpoint *ep; 2086bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 20876733b39aSJayamohan Kallickal 2088bfead3b2SJayamohan Kallickal cq = pbe_eq->cq; 20896733b39aSJayamohan Kallickal sol = queue_tail_node(cq); 2090bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 20916733b39aSJayamohan Kallickal 20926733b39aSJayamohan Kallickal while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] & 20936733b39aSJayamohan Kallickal CQE_VALID_MASK) { 20946733b39aSJayamohan Kallickal be_dws_le_to_cpu(sol, sizeof(struct sol_cqe)); 20956733b39aSJayamohan Kallickal 209673133261SJohn Soni Jose code = (sol->dw[offsetof(struct amap_sol_cqe, code) / 209773133261SJohn Soni Jose 32] & CQE_CODE_MASK); 209832951dd8SJayamohan Kallickal 209973133261SJohn Soni Jose /* Get the CID */ 21002c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) { 21012c9dfd36SJayamohan Kallickal cid = AMAP_GET_BITS(struct amap_sol_cqe, cid, sol); 21022c9dfd36SJayamohan Kallickal } else { 210373133261SJohn Soni Jose if ((code == DRIVERMSG_NOTIFY) || 210473133261SJohn Soni Jose (code == UNSOL_HDR_NOTIFY) || 210573133261SJohn Soni Jose (code == UNSOL_DATA_NOTIFY)) 210673133261SJohn Soni Jose cid = AMAP_GET_BITS( 210773133261SJohn Soni Jose struct amap_i_t_dpdu_cqe_v2, 210873133261SJohn Soni Jose cid, sol); 210973133261SJohn Soni Jose else 211073133261SJohn Soni Jose cid = AMAP_GET_BITS(struct amap_sol_cqe_v2, 211173133261SJohn Soni Jose cid, sol); 21122c9dfd36SJayamohan Kallickal } 211373133261SJohn Soni Jose 2114a7909b39SJayamohan Kallickal cri_index = BE_GET_CRI_FROM_CID(cid); 2115a7909b39SJayamohan Kallickal ep = phba->ep_array[cri_index]; 2116b7ab35b1SJayamohan Kallickal 2117b7ab35b1SJayamohan Kallickal if (ep == NULL) { 2118b7ab35b1SJayamohan Kallickal /* connection has already been freed 2119b7ab35b1SJayamohan Kallickal * just move on to next one 2120b7ab35b1SJayamohan Kallickal */ 2121b7ab35b1SJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 2122b7ab35b1SJayamohan Kallickal BEISCSI_LOG_INIT, 2123b7ab35b1SJayamohan Kallickal "BM_%d : proc cqe of disconn ep: cid %d\n", 2124b7ab35b1SJayamohan Kallickal cid); 2125b7ab35b1SJayamohan Kallickal goto proc_next_cqe; 2126b7ab35b1SJayamohan Kallickal } 2127b7ab35b1SJayamohan Kallickal 2128c2462288SJayamohan Kallickal beiscsi_ep = ep->dd_data; 2129c2462288SJayamohan Kallickal beiscsi_conn = beiscsi_ep->conn; 2130756d29c8SJayamohan Kallickal 21316733b39aSJayamohan Kallickal if (num_processed >= 32) { 2132bfead3b2SJayamohan Kallickal hwi_ring_cq_db(phba, cq->id, 21336733b39aSJayamohan Kallickal num_processed, 0, 0); 21346733b39aSJayamohan Kallickal tot_nump += num_processed; 21356733b39aSJayamohan Kallickal num_processed = 0; 21366733b39aSJayamohan Kallickal } 21376733b39aSJayamohan Kallickal 21380a513dd8SJohn Soni Jose switch (code) { 21396733b39aSJayamohan Kallickal case SOL_CMD_COMPLETE: 21406733b39aSJayamohan Kallickal hwi_complete_cmd(beiscsi_conn, phba, sol); 21416733b39aSJayamohan Kallickal break; 21426733b39aSJayamohan Kallickal case DRIVERMSG_NOTIFY: 214399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, 214499bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 21456763daaeSJohn Soni Jose "BM_%d : Received %s[%d] on CID : %d\n", 21466763daaeSJohn Soni Jose cqe_desc[code], code, cid); 214799bc5d55SJohn Soni Jose 21486733b39aSJayamohan Kallickal dmsg = (struct dmsg_cqe *)sol; 21496733b39aSJayamohan Kallickal hwi_complete_drvr_msgs(beiscsi_conn, phba, sol); 21506733b39aSJayamohan Kallickal break; 21516733b39aSJayamohan Kallickal case UNSOL_HDR_NOTIFY: 215299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, 215399bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 21546763daaeSJohn Soni Jose "BM_%d : Received %s[%d] on CID : %d\n", 21556763daaeSJohn Soni Jose cqe_desc[code], code, cid); 215699bc5d55SJohn Soni Jose 21578f09a3b9SJayamohan Kallickal spin_lock_bh(&phba->async_pdu_lock); 2158bfead3b2SJayamohan Kallickal hwi_process_default_pdu_ring(beiscsi_conn, phba, 2159bfead3b2SJayamohan Kallickal (struct i_t_dpdu_cqe *)sol); 21608f09a3b9SJayamohan Kallickal spin_unlock_bh(&phba->async_pdu_lock); 2161bfead3b2SJayamohan Kallickal break; 21626733b39aSJayamohan Kallickal case UNSOL_DATA_NOTIFY: 216399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, 216499bc5d55SJohn Soni Jose BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, 21656763daaeSJohn Soni Jose "BM_%d : Received %s[%d] on CID : %d\n", 21666763daaeSJohn Soni Jose cqe_desc[code], code, cid); 216799bc5d55SJohn Soni Jose 21688f09a3b9SJayamohan Kallickal spin_lock_bh(&phba->async_pdu_lock); 21696733b39aSJayamohan Kallickal hwi_process_default_pdu_ring(beiscsi_conn, phba, 21706733b39aSJayamohan Kallickal (struct i_t_dpdu_cqe *)sol); 21718f09a3b9SJayamohan Kallickal spin_unlock_bh(&phba->async_pdu_lock); 21726733b39aSJayamohan Kallickal break; 21736733b39aSJayamohan Kallickal case CXN_INVALIDATE_INDEX_NOTIFY: 21746733b39aSJayamohan Kallickal case CMD_INVALIDATED_NOTIFY: 21756733b39aSJayamohan Kallickal case CXN_INVALIDATE_NOTIFY: 217699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 217799bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 21786763daaeSJohn Soni Jose "BM_%d : Ignoring %s[%d] on CID : %d\n", 21796763daaeSJohn Soni Jose cqe_desc[code], code, cid); 21806733b39aSJayamohan Kallickal break; 21816733b39aSJayamohan Kallickal case SOL_CMD_KILLED_DATA_DIGEST_ERR: 21826733b39aSJayamohan Kallickal case CMD_KILLED_INVALID_STATSN_RCVD: 21836733b39aSJayamohan Kallickal case CMD_KILLED_INVALID_R2T_RCVD: 21846733b39aSJayamohan Kallickal case CMD_CXN_KILLED_LUN_INVALID: 21856733b39aSJayamohan Kallickal case CMD_CXN_KILLED_ICD_INVALID: 21866733b39aSJayamohan Kallickal case CMD_CXN_KILLED_ITT_INVALID: 21876733b39aSJayamohan Kallickal case CMD_CXN_KILLED_SEQ_OUTOFORDER: 21886733b39aSJayamohan Kallickal case CMD_CXN_KILLED_INVALID_DATASN_RCVD: 218999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 219099bc5d55SJohn Soni Jose BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, 21916763daaeSJohn Soni Jose "BM_%d : Cmd Notification %s[%d] on CID : %d\n", 21926763daaeSJohn Soni Jose cqe_desc[code], code, cid); 21936733b39aSJayamohan Kallickal break; 21946733b39aSJayamohan Kallickal case UNSOL_DATA_DIGEST_ERROR_NOTIFY: 219599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 219699bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 21976763daaeSJohn Soni Jose "BM_%d : Dropping %s[%d] on DPDU ring on CID : %d\n", 21986763daaeSJohn Soni Jose cqe_desc[code], code, cid); 21998f09a3b9SJayamohan Kallickal spin_lock_bh(&phba->async_pdu_lock); 22006733b39aSJayamohan Kallickal hwi_flush_default_pdu_buffer(phba, beiscsi_conn, 22016733b39aSJayamohan Kallickal (struct i_t_dpdu_cqe *) sol); 22028f09a3b9SJayamohan Kallickal spin_unlock_bh(&phba->async_pdu_lock); 22036733b39aSJayamohan Kallickal break; 22046733b39aSJayamohan Kallickal case CXN_KILLED_PDU_SIZE_EXCEEDS_DSL: 22056733b39aSJayamohan Kallickal case CXN_KILLED_BURST_LEN_MISMATCH: 22066733b39aSJayamohan Kallickal case CXN_KILLED_AHS_RCVD: 22076733b39aSJayamohan Kallickal case CXN_KILLED_HDR_DIGEST_ERR: 22086733b39aSJayamohan Kallickal case CXN_KILLED_UNKNOWN_HDR: 22096733b39aSJayamohan Kallickal case CXN_KILLED_STALE_ITT_TTT_RCVD: 22106733b39aSJayamohan Kallickal case CXN_KILLED_INVALID_ITT_TTT_RCVD: 22116733b39aSJayamohan Kallickal case CXN_KILLED_TIMED_OUT: 22126733b39aSJayamohan Kallickal case CXN_KILLED_FIN_RCVD: 22136763daaeSJohn Soni Jose case CXN_KILLED_RST_SENT: 22146763daaeSJohn Soni Jose case CXN_KILLED_RST_RCVD: 22156733b39aSJayamohan Kallickal case CXN_KILLED_BAD_UNSOL_PDU_RCVD: 22166733b39aSJayamohan Kallickal case CXN_KILLED_BAD_WRB_INDEX_ERROR: 22176733b39aSJayamohan Kallickal case CXN_KILLED_OVER_RUN_RESIDUAL: 22186733b39aSJayamohan Kallickal case CXN_KILLED_UNDER_RUN_RESIDUAL: 22196733b39aSJayamohan Kallickal case CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN: 222099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 222199bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 22226763daaeSJohn Soni Jose "BM_%d : Event %s[%d] received on CID : %d\n", 22236763daaeSJohn Soni Jose cqe_desc[code], code, cid); 22240a513dd8SJohn Soni Jose if (beiscsi_conn) 22256733b39aSJayamohan Kallickal iscsi_conn_failure(beiscsi_conn->conn, 22266733b39aSJayamohan Kallickal ISCSI_ERR_CONN_FAILED); 22276733b39aSJayamohan Kallickal break; 22286733b39aSJayamohan Kallickal default: 222999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 223099bc5d55SJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 22316763daaeSJohn Soni Jose "BM_%d : Invalid CQE Event Received Code : %d" 22326763daaeSJohn Soni Jose "CID 0x%x...\n", 22330a513dd8SJohn Soni Jose code, cid); 22346733b39aSJayamohan Kallickal break; 22356733b39aSJayamohan Kallickal } 22366733b39aSJayamohan Kallickal 2237b7ab35b1SJayamohan Kallickal proc_next_cqe: 22386733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_sol_cqe, valid, sol, 0); 22396733b39aSJayamohan Kallickal queue_tail_inc(cq); 22406733b39aSJayamohan Kallickal sol = queue_tail_node(cq); 22416733b39aSJayamohan Kallickal num_processed++; 22426733b39aSJayamohan Kallickal } 22436733b39aSJayamohan Kallickal 22446733b39aSJayamohan Kallickal if (num_processed > 0) { 22456733b39aSJayamohan Kallickal tot_nump += num_processed; 2246bfead3b2SJayamohan Kallickal hwi_ring_cq_db(phba, cq->id, num_processed, 1, 0); 22476733b39aSJayamohan Kallickal } 22486733b39aSJayamohan Kallickal return tot_nump; 22496733b39aSJayamohan Kallickal } 22506733b39aSJayamohan Kallickal 2251756d29c8SJayamohan Kallickal void beiscsi_process_all_cqs(struct work_struct *work) 22526733b39aSJayamohan Kallickal { 22536733b39aSJayamohan Kallickal unsigned long flags; 2254bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 2255bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 225672fb46a9SJohn Soni Jose struct beiscsi_hba *phba; 225772fb46a9SJohn Soni Jose struct be_eq_obj *pbe_eq = 225872fb46a9SJohn Soni Jose container_of(work, struct be_eq_obj, work_cqs); 22596733b39aSJayamohan Kallickal 226072fb46a9SJohn Soni Jose phba = pbe_eq->phba; 2261bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 2262bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 2263bfead3b2SJayamohan Kallickal 226472fb46a9SJohn Soni Jose if (pbe_eq->todo_mcc_cq) { 22656733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 226672fb46a9SJohn Soni Jose pbe_eq->todo_mcc_cq = false; 22676733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 2268756d29c8SJayamohan Kallickal beiscsi_process_mcc_isr(phba); 22696733b39aSJayamohan Kallickal } 22706733b39aSJayamohan Kallickal 227172fb46a9SJohn Soni Jose if (pbe_eq->todo_cq) { 22726733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 227372fb46a9SJohn Soni Jose pbe_eq->todo_cq = false; 22746733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 2275bfead3b2SJayamohan Kallickal beiscsi_process_cq(pbe_eq); 22766733b39aSJayamohan Kallickal } 227772fb46a9SJohn Soni Jose 227872fb46a9SJohn Soni Jose /* rearm EQ for further interrupts */ 227972fb46a9SJohn Soni Jose hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1); 22806733b39aSJayamohan Kallickal } 22816733b39aSJayamohan Kallickal 2282511cbce2SChristoph Hellwig static int be_iopoll(struct irq_poll *iop, int budget) 22836733b39aSJayamohan Kallickal { 2284ad3f428eSShlomo Pongratz unsigned int ret; 22856733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 2286bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 22876733b39aSJayamohan Kallickal 2288bfead3b2SJayamohan Kallickal pbe_eq = container_of(iop, struct be_eq_obj, iopoll); 2289bfead3b2SJayamohan Kallickal ret = beiscsi_process_cq(pbe_eq); 229073af08e1SJayamohan Kallickal pbe_eq->cq_count += ret; 22916733b39aSJayamohan Kallickal if (ret < budget) { 2292bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 2293511cbce2SChristoph Hellwig irq_poll_complete(iop); 229499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, 229599bc5d55SJohn Soni Jose BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, 229699bc5d55SJohn Soni Jose "BM_%d : rearm pbe_eq->q.id =%d\n", 229799bc5d55SJohn Soni Jose pbe_eq->q.id); 2298bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1); 22996733b39aSJayamohan Kallickal } 23006733b39aSJayamohan Kallickal return ret; 23016733b39aSJayamohan Kallickal } 23026733b39aSJayamohan Kallickal 23036733b39aSJayamohan Kallickal static void 230409a1093aSJohn Soni Jose hwi_write_sgl_v2(struct iscsi_wrb *pwrb, struct scatterlist *sg, 230509a1093aSJohn Soni Jose unsigned int num_sg, struct beiscsi_io_task *io_task) 230609a1093aSJohn Soni Jose { 230709a1093aSJohn Soni Jose struct iscsi_sge *psgl; 230809a1093aSJohn Soni Jose unsigned int sg_len, index; 230909a1093aSJohn Soni Jose unsigned int sge_len = 0; 231009a1093aSJohn Soni Jose unsigned long long addr; 231109a1093aSJohn Soni Jose struct scatterlist *l_sg; 231209a1093aSJohn Soni Jose unsigned int offset; 231309a1093aSJohn Soni Jose 231409a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, iscsi_bhs_addr_lo, pwrb, 231509a1093aSJohn Soni Jose io_task->bhs_pa.u.a32.address_lo); 231609a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, iscsi_bhs_addr_hi, pwrb, 231709a1093aSJohn Soni Jose io_task->bhs_pa.u.a32.address_hi); 231809a1093aSJohn Soni Jose 231909a1093aSJohn Soni Jose l_sg = sg; 232009a1093aSJohn Soni Jose for (index = 0; (index < num_sg) && (index < 2); index++, 232109a1093aSJohn Soni Jose sg = sg_next(sg)) { 232209a1093aSJohn Soni Jose if (index == 0) { 232309a1093aSJohn Soni Jose sg_len = sg_dma_len(sg); 232409a1093aSJohn Soni Jose addr = (u64) sg_dma_address(sg); 232509a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 232609a1093aSJohn Soni Jose sge0_addr_lo, pwrb, 232709a1093aSJohn Soni Jose lower_32_bits(addr)); 232809a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 232909a1093aSJohn Soni Jose sge0_addr_hi, pwrb, 233009a1093aSJohn Soni Jose upper_32_bits(addr)); 233109a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 233209a1093aSJohn Soni Jose sge0_len, pwrb, 233309a1093aSJohn Soni Jose sg_len); 233409a1093aSJohn Soni Jose sge_len = sg_len; 233509a1093aSJohn Soni Jose } else { 233609a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_r2t_offset, 233709a1093aSJohn Soni Jose pwrb, sge_len); 233809a1093aSJohn Soni Jose sg_len = sg_dma_len(sg); 233909a1093aSJohn Soni Jose addr = (u64) sg_dma_address(sg); 234009a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 234109a1093aSJohn Soni Jose sge1_addr_lo, pwrb, 234209a1093aSJohn Soni Jose lower_32_bits(addr)); 234309a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 234409a1093aSJohn Soni Jose sge1_addr_hi, pwrb, 234509a1093aSJohn Soni Jose upper_32_bits(addr)); 234609a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 234709a1093aSJohn Soni Jose sge1_len, pwrb, 234809a1093aSJohn Soni Jose sg_len); 234909a1093aSJohn Soni Jose } 235009a1093aSJohn Soni Jose } 235109a1093aSJohn Soni Jose psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 235209a1093aSJohn Soni Jose memset(psgl, 0, sizeof(*psgl) * BE2_SGE); 235309a1093aSJohn Soni Jose 235409a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2); 235509a1093aSJohn Soni Jose 235609a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 235709a1093aSJohn Soni Jose io_task->bhs_pa.u.a32.address_hi); 235809a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 235909a1093aSJohn Soni Jose io_task->bhs_pa.u.a32.address_lo); 236009a1093aSJohn Soni Jose 236109a1093aSJohn Soni Jose if (num_sg == 1) { 236209a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge0_last, pwrb, 236309a1093aSJohn Soni Jose 1); 236409a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_last, pwrb, 236509a1093aSJohn Soni Jose 0); 236609a1093aSJohn Soni Jose } else if (num_sg == 2) { 236709a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge0_last, pwrb, 236809a1093aSJohn Soni Jose 0); 236909a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_last, pwrb, 237009a1093aSJohn Soni Jose 1); 237109a1093aSJohn Soni Jose } else { 237209a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge0_last, pwrb, 237309a1093aSJohn Soni Jose 0); 237409a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_last, pwrb, 237509a1093aSJohn Soni Jose 0); 237609a1093aSJohn Soni Jose } 237709a1093aSJohn Soni Jose 237809a1093aSJohn Soni Jose sg = l_sg; 237909a1093aSJohn Soni Jose psgl++; 238009a1093aSJohn Soni Jose psgl++; 238109a1093aSJohn Soni Jose offset = 0; 238209a1093aSJohn Soni Jose for (index = 0; index < num_sg; index++, sg = sg_next(sg), psgl++) { 238309a1093aSJohn Soni Jose sg_len = sg_dma_len(sg); 238409a1093aSJohn Soni Jose addr = (u64) sg_dma_address(sg); 238509a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 238609a1093aSJohn Soni Jose lower_32_bits(addr)); 238709a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 238809a1093aSJohn Soni Jose upper_32_bits(addr)); 238909a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len); 239009a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset); 239109a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 239209a1093aSJohn Soni Jose offset += sg_len; 239309a1093aSJohn Soni Jose } 239409a1093aSJohn Soni Jose psgl--; 239509a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 239609a1093aSJohn Soni Jose } 239709a1093aSJohn Soni Jose 239809a1093aSJohn Soni Jose static void 23996733b39aSJayamohan Kallickal hwi_write_sgl(struct iscsi_wrb *pwrb, struct scatterlist *sg, 24006733b39aSJayamohan Kallickal unsigned int num_sg, struct beiscsi_io_task *io_task) 24016733b39aSJayamohan Kallickal { 24026733b39aSJayamohan Kallickal struct iscsi_sge *psgl; 240358ff4bd0SJayamohan Kallickal unsigned int sg_len, index; 24046733b39aSJayamohan Kallickal unsigned int sge_len = 0; 24056733b39aSJayamohan Kallickal unsigned long long addr; 24066733b39aSJayamohan Kallickal struct scatterlist *l_sg; 24076733b39aSJayamohan Kallickal unsigned int offset; 24086733b39aSJayamohan Kallickal 24096733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb, 24106733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 24116733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb, 24126733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 24136733b39aSJayamohan Kallickal 24146733b39aSJayamohan Kallickal l_sg = sg; 241548bd86cfSJayamohan Kallickal for (index = 0; (index < num_sg) && (index < 2); index++, 241648bd86cfSJayamohan Kallickal sg = sg_next(sg)) { 24176733b39aSJayamohan Kallickal if (index == 0) { 24186733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 24196733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 24206733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb, 2421457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 24226733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb, 2423457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 24246733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb, 24256733b39aSJayamohan Kallickal sg_len); 24266733b39aSJayamohan Kallickal sge_len = sg_len; 24276733b39aSJayamohan Kallickal } else { 24286733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_r2t_offset, 24296733b39aSJayamohan Kallickal pwrb, sge_len); 24306733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 24316733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 24326733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_lo, pwrb, 2433457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 24346733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_hi, pwrb, 2435457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 24366733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_len, pwrb, 24376733b39aSJayamohan Kallickal sg_len); 24386733b39aSJayamohan Kallickal } 24396733b39aSJayamohan Kallickal } 24406733b39aSJayamohan Kallickal psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 24416733b39aSJayamohan Kallickal memset(psgl, 0, sizeof(*psgl) * BE2_SGE); 24426733b39aSJayamohan Kallickal 24436733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2); 24446733b39aSJayamohan Kallickal 24456733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 24466733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 24476733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 24486733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 24496733b39aSJayamohan Kallickal 2450caf818f1SJayamohan Kallickal if (num_sg == 1) { 2451caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 2452caf818f1SJayamohan Kallickal 1); 2453caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 2454caf818f1SJayamohan Kallickal 0); 2455caf818f1SJayamohan Kallickal } else if (num_sg == 2) { 2456caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 2457caf818f1SJayamohan Kallickal 0); 2458caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 2459caf818f1SJayamohan Kallickal 1); 2460caf818f1SJayamohan Kallickal } else { 2461caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 2462caf818f1SJayamohan Kallickal 0); 2463caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 2464caf818f1SJayamohan Kallickal 0); 2465caf818f1SJayamohan Kallickal } 24666733b39aSJayamohan Kallickal sg = l_sg; 24676733b39aSJayamohan Kallickal psgl++; 24686733b39aSJayamohan Kallickal psgl++; 24696733b39aSJayamohan Kallickal offset = 0; 247048bd86cfSJayamohan Kallickal for (index = 0; index < num_sg; index++, sg = sg_next(sg), psgl++) { 24716733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 24726733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 24736733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 24746733b39aSJayamohan Kallickal (addr & 0xFFFFFFFF)); 24756733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 24766733b39aSJayamohan Kallickal (addr >> 32)); 24776733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len); 24786733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset); 24796733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 24806733b39aSJayamohan Kallickal offset += sg_len; 24816733b39aSJayamohan Kallickal } 24826733b39aSJayamohan Kallickal psgl--; 24836733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 24846733b39aSJayamohan Kallickal } 24856733b39aSJayamohan Kallickal 2486d629c471SJohn Soni Jose /** 2487d629c471SJohn Soni Jose * hwi_write_buffer()- Populate the WRB with task info 2488d629c471SJohn Soni Jose * @pwrb: ptr to the WRB entry 2489d629c471SJohn Soni Jose * @task: iscsi task which is to be executed 2490d629c471SJohn Soni Jose **/ 24916733b39aSJayamohan Kallickal static void hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task) 24926733b39aSJayamohan Kallickal { 24936733b39aSJayamohan Kallickal struct iscsi_sge *psgl; 24946733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 24956733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = io_task->conn; 24966733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 249709a1093aSJohn Soni Jose uint8_t dsp_value = 0; 24986733b39aSJayamohan Kallickal 24996733b39aSJayamohan Kallickal io_task->bhs_len = sizeof(struct be_nonio_bhs) - 2; 25006733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb, 25016733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 25026733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb, 25036733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 25046733b39aSJayamohan Kallickal 25056733b39aSJayamohan Kallickal if (task->data) { 250609a1093aSJohn Soni Jose 250709a1093aSJohn Soni Jose /* Check for the data_count */ 250809a1093aSJohn Soni Jose dsp_value = (task->data_count) ? 1 : 0; 250909a1093aSJohn Soni Jose 25102c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) 25112c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, 251209a1093aSJohn Soni Jose pwrb, dsp_value); 251309a1093aSJohn Soni Jose else 25142c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, dsp, 251509a1093aSJohn Soni Jose pwrb, dsp_value); 251609a1093aSJohn Soni Jose 251709a1093aSJohn Soni Jose /* Map addr only if there is data_count */ 251809a1093aSJohn Soni Jose if (dsp_value) { 2519d629c471SJohn Soni Jose io_task->mtask_addr = pci_map_single(phba->pcidev, 25206733b39aSJayamohan Kallickal task->data, 2521d629c471SJohn Soni Jose task->data_count, 2522d629c471SJohn Soni Jose PCI_DMA_TODEVICE); 2523d629c471SJohn Soni Jose io_task->mtask_data_count = task->data_count; 252409a1093aSJohn Soni Jose } else 2525d629c471SJohn Soni Jose io_task->mtask_addr = 0; 252609a1093aSJohn Soni Jose 25276733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb, 2528d629c471SJohn Soni Jose lower_32_bits(io_task->mtask_addr)); 25296733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb, 2530d629c471SJohn Soni Jose upper_32_bits(io_task->mtask_addr)); 25316733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb, 25326733b39aSJayamohan Kallickal task->data_count); 25336733b39aSJayamohan Kallickal 25346733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1); 25356733b39aSJayamohan Kallickal } else { 25366733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 2537d629c471SJohn Soni Jose io_task->mtask_addr = 0; 25386733b39aSJayamohan Kallickal } 25396733b39aSJayamohan Kallickal 25406733b39aSJayamohan Kallickal psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 25416733b39aSJayamohan Kallickal 25426733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len); 25436733b39aSJayamohan Kallickal 25446733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 25456733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 25466733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 25476733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 25486733b39aSJayamohan Kallickal if (task->data) { 25496733b39aSJayamohan Kallickal psgl++; 25506733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 0); 25516733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 0); 25526733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0); 25536733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, 0); 25546733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, rsvd0, psgl, 0); 25556733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 25566733b39aSJayamohan Kallickal 25576733b39aSJayamohan Kallickal psgl++; 25586733b39aSJayamohan Kallickal if (task->data) { 25596733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 2560d629c471SJohn Soni Jose lower_32_bits(io_task->mtask_addr)); 25616733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 2562d629c471SJohn Soni Jose upper_32_bits(io_task->mtask_addr)); 25636733b39aSJayamohan Kallickal } 25646733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0x106); 25656733b39aSJayamohan Kallickal } 25666733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 25676733b39aSJayamohan Kallickal } 25686733b39aSJayamohan Kallickal 2569843ae752SJayamohan Kallickal /** 2570843ae752SJayamohan Kallickal * beiscsi_find_mem_req()- Find mem needed 2571843ae752SJayamohan Kallickal * @phba: ptr to HBA struct 2572843ae752SJayamohan Kallickal **/ 25736733b39aSJayamohan Kallickal static void beiscsi_find_mem_req(struct beiscsi_hba *phba) 25746733b39aSJayamohan Kallickal { 25758a86e833SJayamohan Kallickal uint8_t mem_descr_index, ulp_num; 2576bfead3b2SJayamohan Kallickal unsigned int num_cq_pages, num_async_pdu_buf_pages; 25776733b39aSJayamohan Kallickal unsigned int num_async_pdu_data_pages, wrb_sz_per_cxn; 25786733b39aSJayamohan Kallickal unsigned int num_async_pdu_buf_sgl_pages, num_async_pdu_data_sgl_pages; 25796733b39aSJayamohan Kallickal 25806733b39aSJayamohan Kallickal num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \ 25816733b39aSJayamohan Kallickal sizeof(struct sol_cqe)); 25826733b39aSJayamohan Kallickal 25836733b39aSJayamohan Kallickal phba->params.hwi_ws_sz = sizeof(struct hwi_controller); 25846733b39aSJayamohan Kallickal 25856733b39aSJayamohan Kallickal phba->mem_req[ISCSI_MEM_GLOBAL_HEADER] = 2 * 25866733b39aSJayamohan Kallickal BE_ISCSI_PDU_HEADER_SIZE; 25876733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ADDN_CONTEXT] = 25886733b39aSJayamohan Kallickal sizeof(struct hwi_context_memory); 25896733b39aSJayamohan Kallickal 25906733b39aSJayamohan Kallickal 25916733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_WRB] = sizeof(struct iscsi_wrb) 25926733b39aSJayamohan Kallickal * (phba->params.wrbs_per_cxn) 25936733b39aSJayamohan Kallickal * phba->params.cxns_per_ctrl; 25946733b39aSJayamohan Kallickal wrb_sz_per_cxn = sizeof(struct wrb_handle) * 25956733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn); 25966733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_WRBH] = roundup_pow_of_two((wrb_sz_per_cxn) * 25976733b39aSJayamohan Kallickal phba->params.cxns_per_ctrl); 25986733b39aSJayamohan Kallickal 25996733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_SGLH] = sizeof(struct sgl_handle) * 26006733b39aSJayamohan Kallickal phba->params.icds_per_ctrl; 26016733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_SGE] = sizeof(struct iscsi_sge) * 26026733b39aSJayamohan Kallickal phba->params.num_sge_per_io * phba->params.icds_per_ctrl; 26038a86e833SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 26048a86e833SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { 26056733b39aSJayamohan Kallickal 26068a86e833SJayamohan Kallickal num_async_pdu_buf_sgl_pages = 26078a86e833SJayamohan Kallickal PAGES_REQUIRED(BEISCSI_GET_CID_COUNT( 26088a86e833SJayamohan Kallickal phba, ulp_num) * 26098a86e833SJayamohan Kallickal sizeof(struct phys_addr)); 26108a86e833SJayamohan Kallickal 26118a86e833SJayamohan Kallickal num_async_pdu_buf_pages = 26128a86e833SJayamohan Kallickal PAGES_REQUIRED(BEISCSI_GET_CID_COUNT( 26138a86e833SJayamohan Kallickal phba, ulp_num) * 26148a86e833SJayamohan Kallickal phba->params.defpdu_hdr_sz); 26158a86e833SJayamohan Kallickal 26168a86e833SJayamohan Kallickal num_async_pdu_data_pages = 26178a86e833SJayamohan Kallickal PAGES_REQUIRED(BEISCSI_GET_CID_COUNT( 26188a86e833SJayamohan Kallickal phba, ulp_num) * 26198a86e833SJayamohan Kallickal phba->params.defpdu_data_sz); 26208a86e833SJayamohan Kallickal 26218a86e833SJayamohan Kallickal num_async_pdu_data_sgl_pages = 26228a86e833SJayamohan Kallickal PAGES_REQUIRED(BEISCSI_GET_CID_COUNT( 26238a86e833SJayamohan Kallickal phba, ulp_num) * 26248a86e833SJayamohan Kallickal sizeof(struct phys_addr)); 26258a86e833SJayamohan Kallickal 2626a129d92fSJayamohan Kallickal mem_descr_index = (HWI_MEM_TEMPLATE_HDR_ULP0 + 2627a129d92fSJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 2628a129d92fSJayamohan Kallickal phba->mem_req[mem_descr_index] = 2629a129d92fSJayamohan Kallickal BEISCSI_GET_CID_COUNT(phba, ulp_num) * 2630a129d92fSJayamohan Kallickal BEISCSI_TEMPLATE_HDR_PER_CXN_SIZE; 2631a129d92fSJayamohan Kallickal 26328a86e833SJayamohan Kallickal mem_descr_index = (HWI_MEM_ASYNC_HEADER_BUF_ULP0 + 26338a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 26348a86e833SJayamohan Kallickal phba->mem_req[mem_descr_index] = 26358a86e833SJayamohan Kallickal num_async_pdu_buf_pages * 26368a86e833SJayamohan Kallickal PAGE_SIZE; 26378a86e833SJayamohan Kallickal 26388a86e833SJayamohan Kallickal mem_descr_index = (HWI_MEM_ASYNC_DATA_BUF_ULP0 + 26398a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 26408a86e833SJayamohan Kallickal phba->mem_req[mem_descr_index] = 26418a86e833SJayamohan Kallickal num_async_pdu_data_pages * 26428a86e833SJayamohan Kallickal PAGE_SIZE; 26438a86e833SJayamohan Kallickal 26448a86e833SJayamohan Kallickal mem_descr_index = (HWI_MEM_ASYNC_HEADER_RING_ULP0 + 26458a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 26468a86e833SJayamohan Kallickal phba->mem_req[mem_descr_index] = 26478a86e833SJayamohan Kallickal num_async_pdu_buf_sgl_pages * 26488a86e833SJayamohan Kallickal PAGE_SIZE; 26498a86e833SJayamohan Kallickal 26508a86e833SJayamohan Kallickal mem_descr_index = (HWI_MEM_ASYNC_DATA_RING_ULP0 + 26518a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 26528a86e833SJayamohan Kallickal phba->mem_req[mem_descr_index] = 26538a86e833SJayamohan Kallickal num_async_pdu_data_sgl_pages * 26548a86e833SJayamohan Kallickal PAGE_SIZE; 26558a86e833SJayamohan Kallickal 26568a86e833SJayamohan Kallickal mem_descr_index = (HWI_MEM_ASYNC_HEADER_HANDLE_ULP0 + 26578a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 26588a86e833SJayamohan Kallickal phba->mem_req[mem_descr_index] = 26598a86e833SJayamohan Kallickal BEISCSI_GET_CID_COUNT(phba, ulp_num) * 26606733b39aSJayamohan Kallickal sizeof(struct async_pdu_handle); 26618a86e833SJayamohan Kallickal 26628a86e833SJayamohan Kallickal mem_descr_index = (HWI_MEM_ASYNC_DATA_HANDLE_ULP0 + 26638a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 26648a86e833SJayamohan Kallickal phba->mem_req[mem_descr_index] = 26658a86e833SJayamohan Kallickal BEISCSI_GET_CID_COUNT(phba, ulp_num) * 26666733b39aSJayamohan Kallickal sizeof(struct async_pdu_handle); 26678a86e833SJayamohan Kallickal 26688a86e833SJayamohan Kallickal mem_descr_index = (HWI_MEM_ASYNC_PDU_CONTEXT_ULP0 + 26698a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 26708a86e833SJayamohan Kallickal phba->mem_req[mem_descr_index] = 26716733b39aSJayamohan Kallickal sizeof(struct hwi_async_pdu_context) + 26728a86e833SJayamohan Kallickal (BEISCSI_GET_CID_COUNT(phba, ulp_num) * 26738a86e833SJayamohan Kallickal sizeof(struct hwi_async_entry)); 26748a86e833SJayamohan Kallickal } 26758a86e833SJayamohan Kallickal } 26766733b39aSJayamohan Kallickal } 26776733b39aSJayamohan Kallickal 26786733b39aSJayamohan Kallickal static int beiscsi_alloc_mem(struct beiscsi_hba *phba) 26796733b39aSJayamohan Kallickal { 26806733b39aSJayamohan Kallickal dma_addr_t bus_add; 2681a7909b39SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 2682a7909b39SJayamohan Kallickal struct be_mem_descriptor *mem_descr; 26836733b39aSJayamohan Kallickal struct mem_array *mem_arr, *mem_arr_orig; 26846733b39aSJayamohan Kallickal unsigned int i, j, alloc_size, curr_alloc_size; 26856733b39aSJayamohan Kallickal 26863ec78271SJayamohan Kallickal phba->phwi_ctrlr = kzalloc(phba->params.hwi_ws_sz, GFP_KERNEL); 26876733b39aSJayamohan Kallickal if (!phba->phwi_ctrlr) 26886733b39aSJayamohan Kallickal return -ENOMEM; 26896733b39aSJayamohan Kallickal 2690a7909b39SJayamohan Kallickal /* Allocate memory for wrb_context */ 2691a7909b39SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 2692a7909b39SJayamohan Kallickal phwi_ctrlr->wrb_context = kzalloc(sizeof(struct hwi_wrb_context) * 2693a7909b39SJayamohan Kallickal phba->params.cxns_per_ctrl, 2694a7909b39SJayamohan Kallickal GFP_KERNEL); 2695a7909b39SJayamohan Kallickal if (!phwi_ctrlr->wrb_context) 2696a7909b39SJayamohan Kallickal return -ENOMEM; 2697a7909b39SJayamohan Kallickal 26986733b39aSJayamohan Kallickal phba->init_mem = kcalloc(SE_MEM_MAX, sizeof(*mem_descr), 26996733b39aSJayamohan Kallickal GFP_KERNEL); 27006733b39aSJayamohan Kallickal if (!phba->init_mem) { 2701a7909b39SJayamohan Kallickal kfree(phwi_ctrlr->wrb_context); 27026733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 27036733b39aSJayamohan Kallickal return -ENOMEM; 27046733b39aSJayamohan Kallickal } 27056733b39aSJayamohan Kallickal 27066733b39aSJayamohan Kallickal mem_arr_orig = kmalloc(sizeof(*mem_arr_orig) * BEISCSI_MAX_FRAGS_INIT, 27076733b39aSJayamohan Kallickal GFP_KERNEL); 27086733b39aSJayamohan Kallickal if (!mem_arr_orig) { 27096733b39aSJayamohan Kallickal kfree(phba->init_mem); 2710a7909b39SJayamohan Kallickal kfree(phwi_ctrlr->wrb_context); 27116733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 27126733b39aSJayamohan Kallickal return -ENOMEM; 27136733b39aSJayamohan Kallickal } 27146733b39aSJayamohan Kallickal 27156733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 27166733b39aSJayamohan Kallickal for (i = 0; i < SE_MEM_MAX; i++) { 27178a86e833SJayamohan Kallickal if (!phba->mem_req[i]) { 27188a86e833SJayamohan Kallickal mem_descr->mem_array = NULL; 27198a86e833SJayamohan Kallickal mem_descr++; 27208a86e833SJayamohan Kallickal continue; 27218a86e833SJayamohan Kallickal } 27228a86e833SJayamohan Kallickal 27236733b39aSJayamohan Kallickal j = 0; 27246733b39aSJayamohan Kallickal mem_arr = mem_arr_orig; 27256733b39aSJayamohan Kallickal alloc_size = phba->mem_req[i]; 27266733b39aSJayamohan Kallickal memset(mem_arr, 0, sizeof(struct mem_array) * 27276733b39aSJayamohan Kallickal BEISCSI_MAX_FRAGS_INIT); 27286733b39aSJayamohan Kallickal curr_alloc_size = min(be_max_phys_size * 1024, alloc_size); 27296733b39aSJayamohan Kallickal do { 27306733b39aSJayamohan Kallickal mem_arr->virtual_address = pci_alloc_consistent( 27316733b39aSJayamohan Kallickal phba->pcidev, 27326733b39aSJayamohan Kallickal curr_alloc_size, 27336733b39aSJayamohan Kallickal &bus_add); 27346733b39aSJayamohan Kallickal if (!mem_arr->virtual_address) { 27356733b39aSJayamohan Kallickal if (curr_alloc_size <= BE_MIN_MEM_SIZE) 27366733b39aSJayamohan Kallickal goto free_mem; 27376733b39aSJayamohan Kallickal if (curr_alloc_size - 27386733b39aSJayamohan Kallickal rounddown_pow_of_two(curr_alloc_size)) 27396733b39aSJayamohan Kallickal curr_alloc_size = rounddown_pow_of_two 27406733b39aSJayamohan Kallickal (curr_alloc_size); 27416733b39aSJayamohan Kallickal else 27426733b39aSJayamohan Kallickal curr_alloc_size = curr_alloc_size / 2; 27436733b39aSJayamohan Kallickal } else { 27446733b39aSJayamohan Kallickal mem_arr->bus_address.u. 27456733b39aSJayamohan Kallickal a64.address = (__u64) bus_add; 27466733b39aSJayamohan Kallickal mem_arr->size = curr_alloc_size; 27476733b39aSJayamohan Kallickal alloc_size -= curr_alloc_size; 27486733b39aSJayamohan Kallickal curr_alloc_size = min(be_max_phys_size * 27496733b39aSJayamohan Kallickal 1024, alloc_size); 27506733b39aSJayamohan Kallickal j++; 27516733b39aSJayamohan Kallickal mem_arr++; 27526733b39aSJayamohan Kallickal } 27536733b39aSJayamohan Kallickal } while (alloc_size); 27546733b39aSJayamohan Kallickal mem_descr->num_elements = j; 27556733b39aSJayamohan Kallickal mem_descr->size_in_bytes = phba->mem_req[i]; 27566733b39aSJayamohan Kallickal mem_descr->mem_array = kmalloc(sizeof(*mem_arr) * j, 27576733b39aSJayamohan Kallickal GFP_KERNEL); 27586733b39aSJayamohan Kallickal if (!mem_descr->mem_array) 27596733b39aSJayamohan Kallickal goto free_mem; 27606733b39aSJayamohan Kallickal 27616733b39aSJayamohan Kallickal memcpy(mem_descr->mem_array, mem_arr_orig, 27626733b39aSJayamohan Kallickal sizeof(struct mem_array) * j); 27636733b39aSJayamohan Kallickal mem_descr++; 27646733b39aSJayamohan Kallickal } 27656733b39aSJayamohan Kallickal kfree(mem_arr_orig); 27666733b39aSJayamohan Kallickal return 0; 27676733b39aSJayamohan Kallickal free_mem: 27686733b39aSJayamohan Kallickal mem_descr->num_elements = j; 27696733b39aSJayamohan Kallickal while ((i) || (j)) { 27706733b39aSJayamohan Kallickal for (j = mem_descr->num_elements; j > 0; j--) { 27716733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 27726733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].size, 27736733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1]. 27746733b39aSJayamohan Kallickal virtual_address, 2775457ff3b7SJayamohan Kallickal (unsigned long)mem_descr-> 2776457ff3b7SJayamohan Kallickal mem_array[j - 1]. 27776733b39aSJayamohan Kallickal bus_address.u.a64.address); 27786733b39aSJayamohan Kallickal } 27796733b39aSJayamohan Kallickal if (i) { 27806733b39aSJayamohan Kallickal i--; 27816733b39aSJayamohan Kallickal kfree(mem_descr->mem_array); 27826733b39aSJayamohan Kallickal mem_descr--; 27836733b39aSJayamohan Kallickal } 27846733b39aSJayamohan Kallickal } 27856733b39aSJayamohan Kallickal kfree(mem_arr_orig); 27866733b39aSJayamohan Kallickal kfree(phba->init_mem); 2787a7909b39SJayamohan Kallickal kfree(phba->phwi_ctrlr->wrb_context); 27886733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 27896733b39aSJayamohan Kallickal return -ENOMEM; 27906733b39aSJayamohan Kallickal } 27916733b39aSJayamohan Kallickal 27926733b39aSJayamohan Kallickal static int beiscsi_get_memory(struct beiscsi_hba *phba) 27936733b39aSJayamohan Kallickal { 27946733b39aSJayamohan Kallickal beiscsi_find_mem_req(phba); 27956733b39aSJayamohan Kallickal return beiscsi_alloc_mem(phba); 27966733b39aSJayamohan Kallickal } 27976733b39aSJayamohan Kallickal 27986733b39aSJayamohan Kallickal static void iscsi_init_global_templates(struct beiscsi_hba *phba) 27996733b39aSJayamohan Kallickal { 28006733b39aSJayamohan Kallickal struct pdu_data_out *pdata_out; 28016733b39aSJayamohan Kallickal struct pdu_nop_out *pnop_out; 28026733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 28036733b39aSJayamohan Kallickal 28046733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 28056733b39aSJayamohan Kallickal mem_descr += ISCSI_MEM_GLOBAL_HEADER; 28066733b39aSJayamohan Kallickal pdata_out = 28076733b39aSJayamohan Kallickal (struct pdu_data_out *)mem_descr->mem_array[0].virtual_address; 28086733b39aSJayamohan Kallickal memset(pdata_out, 0, BE_ISCSI_PDU_HEADER_SIZE); 28096733b39aSJayamohan Kallickal 28106733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, opcode, pdata_out, 28116733b39aSJayamohan Kallickal IIOC_SCSI_DATA); 28126733b39aSJayamohan Kallickal 28136733b39aSJayamohan Kallickal pnop_out = 28146733b39aSJayamohan Kallickal (struct pdu_nop_out *)((unsigned char *)mem_descr->mem_array[0]. 28156733b39aSJayamohan Kallickal virtual_address + BE_ISCSI_PDU_HEADER_SIZE); 28166733b39aSJayamohan Kallickal 28176733b39aSJayamohan Kallickal memset(pnop_out, 0, BE_ISCSI_PDU_HEADER_SIZE); 28186733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, ttt, pnop_out, 0xFFFFFFFF); 28196733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, f_bit, pnop_out, 1); 28206733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, i_bit, pnop_out, 0); 28216733b39aSJayamohan Kallickal } 28226733b39aSJayamohan Kallickal 28233ec78271SJayamohan Kallickal static int beiscsi_init_wrb_handle(struct beiscsi_hba *phba) 28246733b39aSJayamohan Kallickal { 28256733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr_wrbh, *mem_descr_wrb; 2826a7909b39SJayamohan Kallickal struct hwi_context_memory *phwi_ctxt; 28273ec78271SJayamohan Kallickal struct wrb_handle *pwrb_handle = NULL; 28286733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 28296733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 28303ec78271SJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 28313ec78271SJayamohan Kallickal unsigned int num_cxn_wrbh = 0; 28323ec78271SJayamohan Kallickal unsigned int num_cxn_wrb = 0, j, idx = 0, index; 28336733b39aSJayamohan Kallickal 28346733b39aSJayamohan Kallickal mem_descr_wrbh = phba->init_mem; 28356733b39aSJayamohan Kallickal mem_descr_wrbh += HWI_MEM_WRBH; 28366733b39aSJayamohan Kallickal 28376733b39aSJayamohan Kallickal mem_descr_wrb = phba->init_mem; 28386733b39aSJayamohan Kallickal mem_descr_wrb += HWI_MEM_WRB; 28396733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 28406733b39aSJayamohan Kallickal 2841a7909b39SJayamohan Kallickal /* Allocate memory for WRBQ */ 2842a7909b39SJayamohan Kallickal phwi_ctxt = phwi_ctrlr->phwi_ctxt; 2843a7909b39SJayamohan Kallickal phwi_ctxt->be_wrbq = kzalloc(sizeof(struct be_queue_info) * 2844843ae752SJayamohan Kallickal phba->params.cxns_per_ctrl, 2845a7909b39SJayamohan Kallickal GFP_KERNEL); 2846a7909b39SJayamohan Kallickal if (!phwi_ctxt->be_wrbq) { 2847a7909b39SJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 2848a7909b39SJayamohan Kallickal "BM_%d : WRBQ Mem Alloc Failed\n"); 2849a7909b39SJayamohan Kallickal return -ENOMEM; 2850a7909b39SJayamohan Kallickal } 2851a7909b39SJayamohan Kallickal 2852a7909b39SJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl; index++) { 28536733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 28546733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base = 28556733b39aSJayamohan Kallickal kzalloc(sizeof(struct wrb_handle *) * 28566733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn, GFP_KERNEL); 28573ec78271SJayamohan Kallickal if (!pwrb_context->pwrb_handle_base) { 285899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 285999bc5d55SJohn Soni Jose "BM_%d : Mem Alloc Failed. Failing to load\n"); 28603ec78271SJayamohan Kallickal goto init_wrb_hndl_failed; 28613ec78271SJayamohan Kallickal } 28626733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd = 28636733b39aSJayamohan Kallickal kzalloc(sizeof(struct wrb_handle *) * 28646733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn, GFP_KERNEL); 28653ec78271SJayamohan Kallickal if (!pwrb_context->pwrb_handle_basestd) { 286699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 286799bc5d55SJohn Soni Jose "BM_%d : Mem Alloc Failed. Failing to load\n"); 28683ec78271SJayamohan Kallickal goto init_wrb_hndl_failed; 28696733b39aSJayamohan Kallickal } 28703ec78271SJayamohan Kallickal if (!num_cxn_wrbh) { 28716733b39aSJayamohan Kallickal pwrb_handle = 28726733b39aSJayamohan Kallickal mem_descr_wrbh->mem_array[idx].virtual_address; 28733ec78271SJayamohan Kallickal num_cxn_wrbh = ((mem_descr_wrbh->mem_array[idx].size) / 28746733b39aSJayamohan Kallickal ((sizeof(struct wrb_handle)) * 28756733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn)); 28763ec78271SJayamohan Kallickal idx++; 28773ec78271SJayamohan Kallickal } 28786733b39aSJayamohan Kallickal pwrb_context->alloc_index = 0; 28793ec78271SJayamohan Kallickal pwrb_context->wrb_handles_available = 0; 28803ec78271SJayamohan Kallickal pwrb_context->free_index = 0; 28813ec78271SJayamohan Kallickal 28823ec78271SJayamohan Kallickal if (num_cxn_wrbh) { 28836733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 28846733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base[j] = pwrb_handle; 28856733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd[j] = 28866733b39aSJayamohan Kallickal pwrb_handle; 28876733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available++; 2888bfead3b2SJayamohan Kallickal pwrb_handle->wrb_index = j; 28896733b39aSJayamohan Kallickal pwrb_handle++; 28906733b39aSJayamohan Kallickal } 28916733b39aSJayamohan Kallickal num_cxn_wrbh--; 28926733b39aSJayamohan Kallickal } 28936733b39aSJayamohan Kallickal } 28946733b39aSJayamohan Kallickal idx = 0; 2895a7909b39SJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl; index++) { 28963ec78271SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 28973ec78271SJayamohan Kallickal if (!num_cxn_wrb) { 28986733b39aSJayamohan Kallickal pwrb = mem_descr_wrb->mem_array[idx].virtual_address; 28997c56533cSJayamohan Kallickal num_cxn_wrb = (mem_descr_wrb->mem_array[idx].size) / 29007c56533cSJayamohan Kallickal ((sizeof(struct iscsi_wrb) * 29017c56533cSJayamohan Kallickal phba->params.wrbs_per_cxn)); 29023ec78271SJayamohan Kallickal idx++; 29033ec78271SJayamohan Kallickal } 29043ec78271SJayamohan Kallickal 29056733b39aSJayamohan Kallickal if (num_cxn_wrb) { 29066733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 29076733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[j]; 29086733b39aSJayamohan Kallickal pwrb_handle->pwrb = pwrb; 29096733b39aSJayamohan Kallickal pwrb++; 29106733b39aSJayamohan Kallickal } 29116733b39aSJayamohan Kallickal num_cxn_wrb--; 29126733b39aSJayamohan Kallickal } 29136733b39aSJayamohan Kallickal } 29143ec78271SJayamohan Kallickal return 0; 29153ec78271SJayamohan Kallickal init_wrb_hndl_failed: 29163ec78271SJayamohan Kallickal for (j = index; j > 0; j--) { 29173ec78271SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[j]; 29183ec78271SJayamohan Kallickal kfree(pwrb_context->pwrb_handle_base); 29193ec78271SJayamohan Kallickal kfree(pwrb_context->pwrb_handle_basestd); 29203ec78271SJayamohan Kallickal } 29213ec78271SJayamohan Kallickal return -ENOMEM; 29226733b39aSJayamohan Kallickal } 29236733b39aSJayamohan Kallickal 2924a7909b39SJayamohan Kallickal static int hwi_init_async_pdu_ctx(struct beiscsi_hba *phba) 29256733b39aSJayamohan Kallickal { 29268a86e833SJayamohan Kallickal uint8_t ulp_num; 29276733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 29286733b39aSJayamohan Kallickal struct hba_parameters *p = &phba->params; 29296733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 29306733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_header_h, *pasync_data_h; 2931dc63aac6SJayamohan Kallickal unsigned int index, idx, num_per_mem, num_async_data; 29326733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 29336733b39aSJayamohan Kallickal 29348a86e833SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 29358a86e833SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { 29368a86e833SJayamohan Kallickal 29376733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 29388a86e833SJayamohan Kallickal mem_descr += (HWI_MEM_ASYNC_PDU_CONTEXT_ULP0 + 29398a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET)); 29406733b39aSJayamohan Kallickal 29416733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 29428a86e833SJayamohan Kallickal phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num] = 29438a86e833SJayamohan Kallickal (struct hwi_async_pdu_context *) 29446733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 29458a86e833SJayamohan Kallickal 29468a86e833SJayamohan Kallickal pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num]; 29476733b39aSJayamohan Kallickal memset(pasync_ctx, 0, sizeof(*pasync_ctx)); 29486733b39aSJayamohan Kallickal 29498a86e833SJayamohan Kallickal pasync_ctx->async_entry = 29508a86e833SJayamohan Kallickal (struct hwi_async_entry *) 29518a86e833SJayamohan Kallickal ((long unsigned int)pasync_ctx + 29528a86e833SJayamohan Kallickal sizeof(struct hwi_async_pdu_context)); 2953a7909b39SJayamohan Kallickal 29548a86e833SJayamohan Kallickal pasync_ctx->num_entries = BEISCSI_GET_CID_COUNT(phba, 29558a86e833SJayamohan Kallickal ulp_num); 2956dc63aac6SJayamohan Kallickal pasync_ctx->buffer_size = p->defpdu_hdr_sz; 29576733b39aSJayamohan Kallickal 29586733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 29598a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_BUF_ULP0 + 29608a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 29616733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 296299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 296399bc5d55SJohn Soni Jose "BM_%d : hwi_init_async_pdu_ctx" 29648a86e833SJayamohan Kallickal " HWI_MEM_ASYNC_HEADER_BUF_ULP%d va=%p\n", 29658a86e833SJayamohan Kallickal ulp_num, 29668a86e833SJayamohan Kallickal mem_descr->mem_array[0]. 29678a86e833SJayamohan Kallickal virtual_address); 29686733b39aSJayamohan Kallickal } else 29698a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 29708a86e833SJayamohan Kallickal BEISCSI_LOG_INIT, 29718a86e833SJayamohan Kallickal "BM_%d : No Virtual address for ULP : %d\n", 29728a86e833SJayamohan Kallickal ulp_num); 29736733b39aSJayamohan Kallickal 29746733b39aSJayamohan Kallickal pasync_ctx->async_header.va_base = 29756733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 29766733b39aSJayamohan Kallickal 29776733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address = 29788a86e833SJayamohan Kallickal mem_descr->mem_array[0]. 29798a86e833SJayamohan Kallickal bus_address.u.a64.address; 29806733b39aSJayamohan Kallickal 29816733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 29828a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_RING_ULP0 + 29838a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 29846733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 298599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 298699bc5d55SJohn Soni Jose "BM_%d : hwi_init_async_pdu_ctx" 29878a86e833SJayamohan Kallickal " HWI_MEM_ASYNC_HEADER_RING_ULP%d va=%p\n", 29888a86e833SJayamohan Kallickal ulp_num, 29898a86e833SJayamohan Kallickal mem_descr->mem_array[0]. 29908a86e833SJayamohan Kallickal virtual_address); 29916733b39aSJayamohan Kallickal } else 29928a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 29938a86e833SJayamohan Kallickal BEISCSI_LOG_INIT, 29948a86e833SJayamohan Kallickal "BM_%d : No Virtual address for ULP : %d\n", 29958a86e833SJayamohan Kallickal ulp_num); 299699bc5d55SJohn Soni Jose 29976733b39aSJayamohan Kallickal pasync_ctx->async_header.ring_base = 29986733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 29996733b39aSJayamohan Kallickal 30006733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 30018a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE_ULP0 + 30028a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 30036733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 300499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 300599bc5d55SJohn Soni Jose "BM_%d : hwi_init_async_pdu_ctx" 30068a86e833SJayamohan Kallickal " HWI_MEM_ASYNC_HEADER_HANDLE_ULP%d va=%p\n", 30078a86e833SJayamohan Kallickal ulp_num, 30088a86e833SJayamohan Kallickal mem_descr->mem_array[0]. 30098a86e833SJayamohan Kallickal virtual_address); 30106733b39aSJayamohan Kallickal } else 30118a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 30128a86e833SJayamohan Kallickal BEISCSI_LOG_INIT, 30138a86e833SJayamohan Kallickal "BM_%d : No Virtual address for ULP : %d\n", 30148a86e833SJayamohan Kallickal ulp_num); 30156733b39aSJayamohan Kallickal 30166733b39aSJayamohan Kallickal pasync_ctx->async_header.handle_base = 30176733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 30186733b39aSJayamohan Kallickal pasync_ctx->async_header.writables = 0; 30196733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_header.free_list); 30206733b39aSJayamohan Kallickal 30216733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 30228a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_RING_ULP0 + 30238a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 30246733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 302599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 302699bc5d55SJohn Soni Jose "BM_%d : hwi_init_async_pdu_ctx" 30278a86e833SJayamohan Kallickal " HWI_MEM_ASYNC_DATA_RING_ULP%d va=%p\n", 30288a86e833SJayamohan Kallickal ulp_num, 30298a86e833SJayamohan Kallickal mem_descr->mem_array[0]. 30308a86e833SJayamohan Kallickal virtual_address); 30316733b39aSJayamohan Kallickal } else 30328a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 30338a86e833SJayamohan Kallickal BEISCSI_LOG_INIT, 30348a86e833SJayamohan Kallickal "BM_%d : No Virtual address for ULP : %d\n", 30358a86e833SJayamohan Kallickal ulp_num); 30366733b39aSJayamohan Kallickal 30376733b39aSJayamohan Kallickal pasync_ctx->async_data.ring_base = 30386733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 30396733b39aSJayamohan Kallickal 30406733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 30418a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_HANDLE_ULP0 + 30428a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 30436733b39aSJayamohan Kallickal if (!mem_descr->mem_array[0].virtual_address) 30448a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 30458a86e833SJayamohan Kallickal BEISCSI_LOG_INIT, 30468a86e833SJayamohan Kallickal "BM_%d : No Virtual address for ULP : %d\n", 30478a86e833SJayamohan Kallickal ulp_num); 30486733b39aSJayamohan Kallickal 30496733b39aSJayamohan Kallickal pasync_ctx->async_data.handle_base = 30506733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 30516733b39aSJayamohan Kallickal pasync_ctx->async_data.writables = 0; 30526733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_data.free_list); 30536733b39aSJayamohan Kallickal 30546733b39aSJayamohan Kallickal pasync_header_h = 30558a86e833SJayamohan Kallickal (struct async_pdu_handle *) 30568a86e833SJayamohan Kallickal pasync_ctx->async_header.handle_base; 30576733b39aSJayamohan Kallickal pasync_data_h = 30588a86e833SJayamohan Kallickal (struct async_pdu_handle *) 30598a86e833SJayamohan Kallickal pasync_ctx->async_data.handle_base; 30606733b39aSJayamohan Kallickal 3061dc63aac6SJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 30628a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_BUF_ULP0 + 30638a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 3064dc63aac6SJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 306599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 306699bc5d55SJohn Soni Jose "BM_%d : hwi_init_async_pdu_ctx" 30678a86e833SJayamohan Kallickal " HWI_MEM_ASYNC_DATA_BUF_ULP%d va=%p\n", 30688a86e833SJayamohan Kallickal ulp_num, 30698a86e833SJayamohan Kallickal mem_descr->mem_array[0]. 30708a86e833SJayamohan Kallickal virtual_address); 3071dc63aac6SJayamohan Kallickal } else 30728a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 30738a86e833SJayamohan Kallickal BEISCSI_LOG_INIT, 30748a86e833SJayamohan Kallickal "BM_%d : No Virtual address for ULP : %d\n", 30758a86e833SJayamohan Kallickal ulp_num); 307699bc5d55SJohn Soni Jose 3077dc63aac6SJayamohan Kallickal idx = 0; 3078dc63aac6SJayamohan Kallickal pasync_ctx->async_data.va_base = 3079dc63aac6SJayamohan Kallickal mem_descr->mem_array[idx].virtual_address; 3080dc63aac6SJayamohan Kallickal pasync_ctx->async_data.pa_base.u.a64.address = 30818a86e833SJayamohan Kallickal mem_descr->mem_array[idx]. 30828a86e833SJayamohan Kallickal bus_address.u.a64.address; 3083dc63aac6SJayamohan Kallickal 3084dc63aac6SJayamohan Kallickal num_async_data = ((mem_descr->mem_array[idx].size) / 3085dc63aac6SJayamohan Kallickal phba->params.defpdu_data_sz); 3086dc63aac6SJayamohan Kallickal num_per_mem = 0; 3087dc63aac6SJayamohan Kallickal 30888a86e833SJayamohan Kallickal for (index = 0; index < BEISCSI_GET_CID_COUNT 30898a86e833SJayamohan Kallickal (phba, ulp_num); index++) { 30906733b39aSJayamohan Kallickal pasync_header_h->cri = -1; 30916733b39aSJayamohan Kallickal pasync_header_h->index = (char)index; 30926733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_header_h->link); 30936733b39aSJayamohan Kallickal pasync_header_h->pbuffer = 30946733b39aSJayamohan Kallickal (void *)((unsigned long) 30958a86e833SJayamohan Kallickal (pasync_ctx-> 30968a86e833SJayamohan Kallickal async_header.va_base) + 30976733b39aSJayamohan Kallickal (p->defpdu_hdr_sz * index)); 30986733b39aSJayamohan Kallickal 30996733b39aSJayamohan Kallickal pasync_header_h->pa.u.a64.address = 31008a86e833SJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64. 31018a86e833SJayamohan Kallickal address + (p->defpdu_hdr_sz * index); 31026733b39aSJayamohan Kallickal 31036733b39aSJayamohan Kallickal list_add_tail(&pasync_header_h->link, 31048a86e833SJayamohan Kallickal &pasync_ctx->async_header. 31058a86e833SJayamohan Kallickal free_list); 31066733b39aSJayamohan Kallickal pasync_header_h++; 31076733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries++; 31086733b39aSJayamohan Kallickal pasync_ctx->async_header.writables++; 31096733b39aSJayamohan Kallickal 31108a86e833SJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index]. 31118a86e833SJayamohan Kallickal wait_queue.list); 31126733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index]. 31136733b39aSJayamohan Kallickal header_busy_list); 31146733b39aSJayamohan Kallickal pasync_data_h->cri = -1; 31156733b39aSJayamohan Kallickal pasync_data_h->index = (char)index; 31166733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_data_h->link); 3117dc63aac6SJayamohan Kallickal 3118dc63aac6SJayamohan Kallickal if (!num_async_data) { 3119dc63aac6SJayamohan Kallickal num_per_mem = 0; 3120dc63aac6SJayamohan Kallickal idx++; 3121dc63aac6SJayamohan Kallickal pasync_ctx->async_data.va_base = 31228a86e833SJayamohan Kallickal mem_descr->mem_array[idx]. 31238a86e833SJayamohan Kallickal virtual_address; 31248a86e833SJayamohan Kallickal pasync_ctx->async_data.pa_base.u. 31258a86e833SJayamohan Kallickal a64.address = 3126dc63aac6SJayamohan Kallickal mem_descr->mem_array[idx]. 3127dc63aac6SJayamohan Kallickal bus_address.u.a64.address; 31288a86e833SJayamohan Kallickal num_async_data = 31298a86e833SJayamohan Kallickal ((mem_descr->mem_array[idx]. 31308a86e833SJayamohan Kallickal size) / 3131dc63aac6SJayamohan Kallickal phba->params.defpdu_data_sz); 3132dc63aac6SJayamohan Kallickal } 31336733b39aSJayamohan Kallickal pasync_data_h->pbuffer = 31346733b39aSJayamohan Kallickal (void *)((unsigned long) 31356733b39aSJayamohan Kallickal (pasync_ctx->async_data.va_base) + 3136dc63aac6SJayamohan Kallickal (p->defpdu_data_sz * num_per_mem)); 31376733b39aSJayamohan Kallickal 31386733b39aSJayamohan Kallickal pasync_data_h->pa.u.a64.address = 31398a86e833SJayamohan Kallickal pasync_ctx->async_data.pa_base.u.a64. 31408a86e833SJayamohan Kallickal address + (p->defpdu_data_sz * 31418a86e833SJayamohan Kallickal num_per_mem); 3142dc63aac6SJayamohan Kallickal num_per_mem++; 3143dc63aac6SJayamohan Kallickal num_async_data--; 31446733b39aSJayamohan Kallickal 31456733b39aSJayamohan Kallickal list_add_tail(&pasync_data_h->link, 31468a86e833SJayamohan Kallickal &pasync_ctx->async_data. 31478a86e833SJayamohan Kallickal free_list); 31486733b39aSJayamohan Kallickal pasync_data_h++; 31496733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries++; 31506733b39aSJayamohan Kallickal pasync_ctx->async_data.writables++; 31516733b39aSJayamohan Kallickal 31528a86e833SJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index]. 31538a86e833SJayamohan Kallickal data_busy_list); 31546733b39aSJayamohan Kallickal } 31556733b39aSJayamohan Kallickal 31566733b39aSJayamohan Kallickal pasync_ctx->async_header.host_write_ptr = 0; 31576733b39aSJayamohan Kallickal pasync_ctx->async_header.ep_read_ptr = -1; 31586733b39aSJayamohan Kallickal pasync_ctx->async_data.host_write_ptr = 0; 31596733b39aSJayamohan Kallickal pasync_ctx->async_data.ep_read_ptr = -1; 31608a86e833SJayamohan Kallickal } 31618a86e833SJayamohan Kallickal } 3162a7909b39SJayamohan Kallickal 3163a7909b39SJayamohan Kallickal return 0; 31646733b39aSJayamohan Kallickal } 31656733b39aSJayamohan Kallickal 31666733b39aSJayamohan Kallickal static int 31676733b39aSJayamohan Kallickal be_sgl_create_contiguous(void *virtual_address, 31686733b39aSJayamohan Kallickal u64 physical_address, u32 length, 31696733b39aSJayamohan Kallickal struct be_dma_mem *sgl) 31706733b39aSJayamohan Kallickal { 31716733b39aSJayamohan Kallickal WARN_ON(!virtual_address); 31726733b39aSJayamohan Kallickal WARN_ON(!physical_address); 3173dd29dae0STim Gardner WARN_ON(!length); 31746733b39aSJayamohan Kallickal WARN_ON(!sgl); 31756733b39aSJayamohan Kallickal 31766733b39aSJayamohan Kallickal sgl->va = virtual_address; 3177457ff3b7SJayamohan Kallickal sgl->dma = (unsigned long)physical_address; 31786733b39aSJayamohan Kallickal sgl->size = length; 31796733b39aSJayamohan Kallickal 31806733b39aSJayamohan Kallickal return 0; 31816733b39aSJayamohan Kallickal } 31826733b39aSJayamohan Kallickal 31836733b39aSJayamohan Kallickal static void be_sgl_destroy_contiguous(struct be_dma_mem *sgl) 31846733b39aSJayamohan Kallickal { 31856733b39aSJayamohan Kallickal memset(sgl, 0, sizeof(*sgl)); 31866733b39aSJayamohan Kallickal } 31876733b39aSJayamohan Kallickal 31886733b39aSJayamohan Kallickal static void 31896733b39aSJayamohan Kallickal hwi_build_be_sgl_arr(struct beiscsi_hba *phba, 31906733b39aSJayamohan Kallickal struct mem_array *pmem, struct be_dma_mem *sgl) 31916733b39aSJayamohan Kallickal { 31926733b39aSJayamohan Kallickal if (sgl->va) 31936733b39aSJayamohan Kallickal be_sgl_destroy_contiguous(sgl); 31946733b39aSJayamohan Kallickal 31956733b39aSJayamohan Kallickal be_sgl_create_contiguous(pmem->virtual_address, 31966733b39aSJayamohan Kallickal pmem->bus_address.u.a64.address, 31976733b39aSJayamohan Kallickal pmem->size, sgl); 31986733b39aSJayamohan Kallickal } 31996733b39aSJayamohan Kallickal 32006733b39aSJayamohan Kallickal static void 32016733b39aSJayamohan Kallickal hwi_build_be_sgl_by_offset(struct beiscsi_hba *phba, 32026733b39aSJayamohan Kallickal struct mem_array *pmem, struct be_dma_mem *sgl) 32036733b39aSJayamohan Kallickal { 32046733b39aSJayamohan Kallickal if (sgl->va) 32056733b39aSJayamohan Kallickal be_sgl_destroy_contiguous(sgl); 32066733b39aSJayamohan Kallickal 32076733b39aSJayamohan Kallickal be_sgl_create_contiguous((unsigned char *)pmem->virtual_address, 32086733b39aSJayamohan Kallickal pmem->bus_address.u.a64.address, 32096733b39aSJayamohan Kallickal pmem->size, sgl); 32106733b39aSJayamohan Kallickal } 32116733b39aSJayamohan Kallickal 32126733b39aSJayamohan Kallickal static int be_fill_queue(struct be_queue_info *q, 32136733b39aSJayamohan Kallickal u16 len, u16 entry_size, void *vaddress) 32146733b39aSJayamohan Kallickal { 32156733b39aSJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 32166733b39aSJayamohan Kallickal 32176733b39aSJayamohan Kallickal memset(q, 0, sizeof(*q)); 32186733b39aSJayamohan Kallickal q->len = len; 32196733b39aSJayamohan Kallickal q->entry_size = entry_size; 32206733b39aSJayamohan Kallickal mem->size = len * entry_size; 32216733b39aSJayamohan Kallickal mem->va = vaddress; 32226733b39aSJayamohan Kallickal if (!mem->va) 32236733b39aSJayamohan Kallickal return -ENOMEM; 32246733b39aSJayamohan Kallickal memset(mem->va, 0, mem->size); 32256733b39aSJayamohan Kallickal return 0; 32266733b39aSJayamohan Kallickal } 32276733b39aSJayamohan Kallickal 3228bfead3b2SJayamohan Kallickal static int beiscsi_create_eqs(struct beiscsi_hba *phba, 32296733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context) 32306733b39aSJayamohan Kallickal { 3231bfead3b2SJayamohan Kallickal unsigned int i, num_eq_pages; 323299bc5d55SJohn Soni Jose int ret = 0, eq_for_mcc; 32336733b39aSJayamohan Kallickal struct be_queue_info *eq; 32346733b39aSJayamohan Kallickal struct be_dma_mem *mem; 32356733b39aSJayamohan Kallickal void *eq_vaddress; 3236bfead3b2SJayamohan Kallickal dma_addr_t paddr; 32376733b39aSJayamohan Kallickal 3238bfead3b2SJayamohan Kallickal num_eq_pages = PAGES_REQUIRED(phba->params.num_eq_entries * \ 3239bfead3b2SJayamohan Kallickal sizeof(struct be_eq_entry)); 3240bfead3b2SJayamohan Kallickal 3241bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 3242bfead3b2SJayamohan Kallickal eq_for_mcc = 1; 3243bfead3b2SJayamohan Kallickal else 3244bfead3b2SJayamohan Kallickal eq_for_mcc = 0; 3245bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) { 3246bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 32476733b39aSJayamohan Kallickal mem = &eq->dma_mem; 3248bfead3b2SJayamohan Kallickal phwi_context->be_eq[i].phba = phba; 3249bfead3b2SJayamohan Kallickal eq_vaddress = pci_alloc_consistent(phba->pcidev, 3250bfead3b2SJayamohan Kallickal num_eq_pages * PAGE_SIZE, 3251bfead3b2SJayamohan Kallickal &paddr); 3252bfead3b2SJayamohan Kallickal if (!eq_vaddress) 3253bfead3b2SJayamohan Kallickal goto create_eq_error; 32546733b39aSJayamohan Kallickal 3255bfead3b2SJayamohan Kallickal mem->va = eq_vaddress; 32566733b39aSJayamohan Kallickal ret = be_fill_queue(eq, phba->params.num_eq_entries, 32576733b39aSJayamohan Kallickal sizeof(struct be_eq_entry), eq_vaddress); 32586733b39aSJayamohan Kallickal if (ret) { 325999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 326099bc5d55SJohn Soni Jose "BM_%d : be_fill_queue Failed for EQ\n"); 3261bfead3b2SJayamohan Kallickal goto create_eq_error; 32626733b39aSJayamohan Kallickal } 32636733b39aSJayamohan Kallickal 3264bfead3b2SJayamohan Kallickal mem->dma = paddr; 32656733b39aSJayamohan Kallickal ret = beiscsi_cmd_eq_create(&phba->ctrl, eq, 3266bfead3b2SJayamohan Kallickal phwi_context->cur_eqd); 32676733b39aSJayamohan Kallickal if (ret) { 326899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 326999bc5d55SJohn Soni Jose "BM_%d : beiscsi_cmd_eq_create" 32706733b39aSJayamohan Kallickal "Failed for EQ\n"); 3271bfead3b2SJayamohan Kallickal goto create_eq_error; 3272bfead3b2SJayamohan Kallickal } 327399bc5d55SJohn Soni Jose 327499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 327599bc5d55SJohn Soni Jose "BM_%d : eqid = %d\n", 327699bc5d55SJohn Soni Jose phwi_context->be_eq[i].q.id); 3277bfead3b2SJayamohan Kallickal } 3278bfead3b2SJayamohan Kallickal return 0; 3279bfead3b2SJayamohan Kallickal create_eq_error: 3280107dfcbaSJohn Soni Jose for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) { 3281bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 3282bfead3b2SJayamohan Kallickal mem = &eq->dma_mem; 3283bfead3b2SJayamohan Kallickal if (mem->va) 3284bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, num_eq_pages 3285bfead3b2SJayamohan Kallickal * PAGE_SIZE, 3286bfead3b2SJayamohan Kallickal mem->va, mem->dma); 3287bfead3b2SJayamohan Kallickal } 32886733b39aSJayamohan Kallickal return ret; 32896733b39aSJayamohan Kallickal } 32906733b39aSJayamohan Kallickal 3291bfead3b2SJayamohan Kallickal static int beiscsi_create_cqs(struct beiscsi_hba *phba, 32926733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context) 32936733b39aSJayamohan Kallickal { 3294bfead3b2SJayamohan Kallickal unsigned int i, num_cq_pages; 329599bc5d55SJohn Soni Jose int ret = 0; 32966733b39aSJayamohan Kallickal struct be_queue_info *cq, *eq; 32976733b39aSJayamohan Kallickal struct be_dma_mem *mem; 3298bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 32996733b39aSJayamohan Kallickal void *cq_vaddress; 3300bfead3b2SJayamohan Kallickal dma_addr_t paddr; 33016733b39aSJayamohan Kallickal 3302bfead3b2SJayamohan Kallickal num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \ 3303bfead3b2SJayamohan Kallickal sizeof(struct sol_cqe)); 3304bfead3b2SJayamohan Kallickal 3305bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 3306bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[i]; 3307bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 3308bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 3309bfead3b2SJayamohan Kallickal pbe_eq->cq = cq; 3310bfead3b2SJayamohan Kallickal pbe_eq->phba = phba; 33116733b39aSJayamohan Kallickal mem = &cq->dma_mem; 3312bfead3b2SJayamohan Kallickal cq_vaddress = pci_alloc_consistent(phba->pcidev, 3313bfead3b2SJayamohan Kallickal num_cq_pages * PAGE_SIZE, 3314bfead3b2SJayamohan Kallickal &paddr); 3315bfead3b2SJayamohan Kallickal if (!cq_vaddress) 3316bfead3b2SJayamohan Kallickal goto create_cq_error; 33177da50879SJayamohan Kallickal ret = be_fill_queue(cq, phba->params.num_cq_entries, 33186733b39aSJayamohan Kallickal sizeof(struct sol_cqe), cq_vaddress); 33196733b39aSJayamohan Kallickal if (ret) { 332099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 332199bc5d55SJohn Soni Jose "BM_%d : be_fill_queue Failed " 332299bc5d55SJohn Soni Jose "for ISCSI CQ\n"); 3323bfead3b2SJayamohan Kallickal goto create_cq_error; 33246733b39aSJayamohan Kallickal } 33256733b39aSJayamohan Kallickal 3326bfead3b2SJayamohan Kallickal mem->dma = paddr; 3327bfead3b2SJayamohan Kallickal ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false, 3328bfead3b2SJayamohan Kallickal false, 0); 33296733b39aSJayamohan Kallickal if (ret) { 333099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 333199bc5d55SJohn Soni Jose "BM_%d : beiscsi_cmd_eq_create" 3332bfead3b2SJayamohan Kallickal "Failed for ISCSI CQ\n"); 3333bfead3b2SJayamohan Kallickal goto create_cq_error; 33346733b39aSJayamohan Kallickal } 333599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 333699bc5d55SJohn Soni Jose "BM_%d : iscsi cq_id is %d for eq_id %d\n" 333799bc5d55SJohn Soni Jose "iSCSI CQ CREATED\n", cq->id, eq->id); 3338bfead3b2SJayamohan Kallickal } 33396733b39aSJayamohan Kallickal return 0; 3340bfead3b2SJayamohan Kallickal 3341bfead3b2SJayamohan Kallickal create_cq_error: 3342bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 3343bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[i]; 3344bfead3b2SJayamohan Kallickal mem = &cq->dma_mem; 3345bfead3b2SJayamohan Kallickal if (mem->va) 3346bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, num_cq_pages 3347bfead3b2SJayamohan Kallickal * PAGE_SIZE, 3348bfead3b2SJayamohan Kallickal mem->va, mem->dma); 3349bfead3b2SJayamohan Kallickal } 3350bfead3b2SJayamohan Kallickal return ret; 3351bfead3b2SJayamohan Kallickal 33526733b39aSJayamohan Kallickal } 33536733b39aSJayamohan Kallickal 33546733b39aSJayamohan Kallickal static int 33556733b39aSJayamohan Kallickal beiscsi_create_def_hdr(struct beiscsi_hba *phba, 33566733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 33576733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr, 33588a86e833SJayamohan Kallickal unsigned int def_pdu_ring_sz, uint8_t ulp_num) 33596733b39aSJayamohan Kallickal { 33606733b39aSJayamohan Kallickal unsigned int idx; 33616733b39aSJayamohan Kallickal int ret; 33626733b39aSJayamohan Kallickal struct be_queue_info *dq, *cq; 33636733b39aSJayamohan Kallickal struct be_dma_mem *mem; 33646733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 33656733b39aSJayamohan Kallickal void *dq_vaddress; 33666733b39aSJayamohan Kallickal 33676733b39aSJayamohan Kallickal idx = 0; 33688a86e833SJayamohan Kallickal dq = &phwi_context->be_def_hdrq[ulp_num]; 3369bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 33706733b39aSJayamohan Kallickal mem = &dq->dma_mem; 33716733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 33728a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_RING_ULP0 + 33738a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 33746733b39aSJayamohan Kallickal dq_vaddress = mem_descr->mem_array[idx].virtual_address; 33756733b39aSJayamohan Kallickal ret = be_fill_queue(dq, mem_descr->mem_array[0].size / 33766733b39aSJayamohan Kallickal sizeof(struct phys_addr), 33776733b39aSJayamohan Kallickal sizeof(struct phys_addr), dq_vaddress); 33786733b39aSJayamohan Kallickal if (ret) { 337999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 33808a86e833SJayamohan Kallickal "BM_%d : be_fill_queue Failed for DEF PDU HDR on ULP : %d\n", 33818a86e833SJayamohan Kallickal ulp_num); 33828a86e833SJayamohan Kallickal 33836733b39aSJayamohan Kallickal return ret; 33846733b39aSJayamohan Kallickal } 3385457ff3b7SJayamohan Kallickal mem->dma = (unsigned long)mem_descr->mem_array[idx]. 3386457ff3b7SJayamohan Kallickal bus_address.u.a64.address; 33876733b39aSJayamohan Kallickal ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dq, 33886733b39aSJayamohan Kallickal def_pdu_ring_sz, 33898a86e833SJayamohan Kallickal phba->params.defpdu_hdr_sz, 33908a86e833SJayamohan Kallickal BEISCSI_DEFQ_HDR, ulp_num); 33916733b39aSJayamohan Kallickal if (ret) { 339299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 33938a86e833SJayamohan Kallickal "BM_%d : be_cmd_create_default_pdu_queue Failed DEFHDR on ULP : %d\n", 33948a86e833SJayamohan Kallickal ulp_num); 33958a86e833SJayamohan Kallickal 33966733b39aSJayamohan Kallickal return ret; 33976733b39aSJayamohan Kallickal } 339899bc5d55SJohn Soni Jose 33998a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 34008a86e833SJayamohan Kallickal "BM_%d : iscsi hdr def pdu id for ULP : %d is %d\n", 34018a86e833SJayamohan Kallickal ulp_num, 34028a86e833SJayamohan Kallickal phwi_context->be_def_hdrq[ulp_num].id); 34038a86e833SJayamohan Kallickal hwi_post_async_buffers(phba, BEISCSI_DEFQ_HDR, ulp_num); 34046733b39aSJayamohan Kallickal return 0; 34056733b39aSJayamohan Kallickal } 34066733b39aSJayamohan Kallickal 34076733b39aSJayamohan Kallickal static int 34086733b39aSJayamohan Kallickal beiscsi_create_def_data(struct beiscsi_hba *phba, 34096733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 34106733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr, 34118a86e833SJayamohan Kallickal unsigned int def_pdu_ring_sz, uint8_t ulp_num) 34126733b39aSJayamohan Kallickal { 34136733b39aSJayamohan Kallickal unsigned int idx; 34146733b39aSJayamohan Kallickal int ret; 34156733b39aSJayamohan Kallickal struct be_queue_info *dataq, *cq; 34166733b39aSJayamohan Kallickal struct be_dma_mem *mem; 34176733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 34186733b39aSJayamohan Kallickal void *dq_vaddress; 34196733b39aSJayamohan Kallickal 34206733b39aSJayamohan Kallickal idx = 0; 34218a86e833SJayamohan Kallickal dataq = &phwi_context->be_def_dataq[ulp_num]; 3422bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 34236733b39aSJayamohan Kallickal mem = &dataq->dma_mem; 34246733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 34258a86e833SJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_RING_ULP0 + 34268a86e833SJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 34276733b39aSJayamohan Kallickal dq_vaddress = mem_descr->mem_array[idx].virtual_address; 34286733b39aSJayamohan Kallickal ret = be_fill_queue(dataq, mem_descr->mem_array[0].size / 34296733b39aSJayamohan Kallickal sizeof(struct phys_addr), 34306733b39aSJayamohan Kallickal sizeof(struct phys_addr), dq_vaddress); 34316733b39aSJayamohan Kallickal if (ret) { 343299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 34338a86e833SJayamohan Kallickal "BM_%d : be_fill_queue Failed for DEF PDU " 34348a86e833SJayamohan Kallickal "DATA on ULP : %d\n", 34358a86e833SJayamohan Kallickal ulp_num); 34368a86e833SJayamohan Kallickal 34376733b39aSJayamohan Kallickal return ret; 34386733b39aSJayamohan Kallickal } 3439457ff3b7SJayamohan Kallickal mem->dma = (unsigned long)mem_descr->mem_array[idx]. 3440457ff3b7SJayamohan Kallickal bus_address.u.a64.address; 34416733b39aSJayamohan Kallickal ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dataq, 34426733b39aSJayamohan Kallickal def_pdu_ring_sz, 34438a86e833SJayamohan Kallickal phba->params.defpdu_data_sz, 34448a86e833SJayamohan Kallickal BEISCSI_DEFQ_DATA, ulp_num); 34456733b39aSJayamohan Kallickal if (ret) { 344699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 344799bc5d55SJohn Soni Jose "BM_%d be_cmd_create_default_pdu_queue" 34488a86e833SJayamohan Kallickal " Failed for DEF PDU DATA on ULP : %d\n", 34498a86e833SJayamohan Kallickal ulp_num); 34506733b39aSJayamohan Kallickal return ret; 34516733b39aSJayamohan Kallickal } 345299bc5d55SJohn Soni Jose 345399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 34548a86e833SJayamohan Kallickal "BM_%d : iscsi def data id on ULP : %d is %d\n", 34558a86e833SJayamohan Kallickal ulp_num, 34568a86e833SJayamohan Kallickal phwi_context->be_def_dataq[ulp_num].id); 34578a86e833SJayamohan Kallickal 34588a86e833SJayamohan Kallickal hwi_post_async_buffers(phba, BEISCSI_DEFQ_DATA, ulp_num); 34598a86e833SJayamohan Kallickal beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 34608a86e833SJayamohan Kallickal "BM_%d : DEFAULT PDU DATA RING CREATED" 34618a86e833SJayamohan Kallickal "on ULP : %d\n", ulp_num); 346299bc5d55SJohn Soni Jose 34636733b39aSJayamohan Kallickal return 0; 34646733b39aSJayamohan Kallickal } 34656733b39aSJayamohan Kallickal 346615a90fe0SJayamohan Kallickal 346715a90fe0SJayamohan Kallickal static int 346815a90fe0SJayamohan Kallickal beiscsi_post_template_hdr(struct beiscsi_hba *phba) 346915a90fe0SJayamohan Kallickal { 347015a90fe0SJayamohan Kallickal struct be_mem_descriptor *mem_descr; 347115a90fe0SJayamohan Kallickal struct mem_array *pm_arr; 347215a90fe0SJayamohan Kallickal struct be_dma_mem sgl; 3473a129d92fSJayamohan Kallickal int status, ulp_num; 347415a90fe0SJayamohan Kallickal 3475a129d92fSJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 3476a129d92fSJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { 3477a129d92fSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 3478a129d92fSJayamohan Kallickal mem_descr += HWI_MEM_TEMPLATE_HDR_ULP0 + 3479a129d92fSJayamohan Kallickal (ulp_num * MEM_DESCR_OFFSET); 348015a90fe0SJayamohan Kallickal pm_arr = mem_descr->mem_array; 348115a90fe0SJayamohan Kallickal 348215a90fe0SJayamohan Kallickal hwi_build_be_sgl_arr(phba, pm_arr, &sgl); 3483a129d92fSJayamohan Kallickal status = be_cmd_iscsi_post_template_hdr( 3484a129d92fSJayamohan Kallickal &phba->ctrl, &sgl); 348515a90fe0SJayamohan Kallickal 348615a90fe0SJayamohan Kallickal if (status != 0) { 348715a90fe0SJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 3488a129d92fSJayamohan Kallickal "BM_%d : Post Template HDR Failed for" 3489a129d92fSJayamohan Kallickal "ULP_%d\n", ulp_num); 349015a90fe0SJayamohan Kallickal return status; 349115a90fe0SJayamohan Kallickal } 349215a90fe0SJayamohan Kallickal 349315a90fe0SJayamohan Kallickal beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 3494a129d92fSJayamohan Kallickal "BM_%d : Template HDR Pages Posted for" 3495a129d92fSJayamohan Kallickal "ULP_%d\n", ulp_num); 3496a129d92fSJayamohan Kallickal } 3497a129d92fSJayamohan Kallickal } 349815a90fe0SJayamohan Kallickal return 0; 349915a90fe0SJayamohan Kallickal } 350015a90fe0SJayamohan Kallickal 35016733b39aSJayamohan Kallickal static int 35026733b39aSJayamohan Kallickal beiscsi_post_pages(struct beiscsi_hba *phba) 35036733b39aSJayamohan Kallickal { 35046733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 35056733b39aSJayamohan Kallickal struct mem_array *pm_arr; 35066733b39aSJayamohan Kallickal unsigned int page_offset, i; 35076733b39aSJayamohan Kallickal struct be_dma_mem sgl; 3508843ae752SJayamohan Kallickal int status, ulp_num = 0; 35096733b39aSJayamohan Kallickal 35106733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 35116733b39aSJayamohan Kallickal mem_descr += HWI_MEM_SGE; 35126733b39aSJayamohan Kallickal pm_arr = mem_descr->mem_array; 35136733b39aSJayamohan Kallickal 351490622db3SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) 351590622db3SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) 351690622db3SJayamohan Kallickal break; 351790622db3SJayamohan Kallickal 35186733b39aSJayamohan Kallickal page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io * 3519843ae752SJayamohan Kallickal phba->fw_config.iscsi_icd_start[ulp_num]) / PAGE_SIZE; 35206733b39aSJayamohan Kallickal for (i = 0; i < mem_descr->num_elements; i++) { 35216733b39aSJayamohan Kallickal hwi_build_be_sgl_arr(phba, pm_arr, &sgl); 35226733b39aSJayamohan Kallickal status = be_cmd_iscsi_post_sgl_pages(&phba->ctrl, &sgl, 35236733b39aSJayamohan Kallickal page_offset, 35246733b39aSJayamohan Kallickal (pm_arr->size / PAGE_SIZE)); 35256733b39aSJayamohan Kallickal page_offset += pm_arr->size / PAGE_SIZE; 35266733b39aSJayamohan Kallickal if (status != 0) { 352799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 352899bc5d55SJohn Soni Jose "BM_%d : post sgl failed.\n"); 35296733b39aSJayamohan Kallickal return status; 35306733b39aSJayamohan Kallickal } 35316733b39aSJayamohan Kallickal pm_arr++; 35326733b39aSJayamohan Kallickal } 353399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 353499bc5d55SJohn Soni Jose "BM_%d : POSTED PAGES\n"); 35356733b39aSJayamohan Kallickal return 0; 35366733b39aSJayamohan Kallickal } 35376733b39aSJayamohan Kallickal 3538bfead3b2SJayamohan Kallickal static void be_queue_free(struct beiscsi_hba *phba, struct be_queue_info *q) 3539bfead3b2SJayamohan Kallickal { 3540bfead3b2SJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 3541c8b25598SJayamohan Kallickal if (mem->va) { 3542bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, mem->size, 3543bfead3b2SJayamohan Kallickal mem->va, mem->dma); 3544c8b25598SJayamohan Kallickal mem->va = NULL; 3545c8b25598SJayamohan Kallickal } 3546bfead3b2SJayamohan Kallickal } 3547bfead3b2SJayamohan Kallickal 3548bfead3b2SJayamohan Kallickal static int be_queue_alloc(struct beiscsi_hba *phba, struct be_queue_info *q, 3549bfead3b2SJayamohan Kallickal u16 len, u16 entry_size) 3550bfead3b2SJayamohan Kallickal { 3551bfead3b2SJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 3552bfead3b2SJayamohan Kallickal 3553bfead3b2SJayamohan Kallickal memset(q, 0, sizeof(*q)); 3554bfead3b2SJayamohan Kallickal q->len = len; 3555bfead3b2SJayamohan Kallickal q->entry_size = entry_size; 3556bfead3b2SJayamohan Kallickal mem->size = len * entry_size; 35577c845eb5SJoe Perches mem->va = pci_zalloc_consistent(phba->pcidev, mem->size, &mem->dma); 3558bfead3b2SJayamohan Kallickal if (!mem->va) 3559d3ad2bb3SJayamohan Kallickal return -ENOMEM; 3560bfead3b2SJayamohan Kallickal return 0; 3561bfead3b2SJayamohan Kallickal } 3562bfead3b2SJayamohan Kallickal 35636733b39aSJayamohan Kallickal static int 35646733b39aSJayamohan Kallickal beiscsi_create_wrb_rings(struct beiscsi_hba *phba, 35656733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 35666733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr) 35676733b39aSJayamohan Kallickal { 35686733b39aSJayamohan Kallickal unsigned int wrb_mem_index, offset, size, num_wrb_rings; 35696733b39aSJayamohan Kallickal u64 pa_addr_lo; 35704eea99d5SJayamohan Kallickal unsigned int idx, num, i, ulp_num; 35716733b39aSJayamohan Kallickal struct mem_array *pwrb_arr; 35726733b39aSJayamohan Kallickal void *wrb_vaddr; 35736733b39aSJayamohan Kallickal struct be_dma_mem sgl; 35746733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 3575a7909b39SJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 35766733b39aSJayamohan Kallickal int status; 35774eea99d5SJayamohan Kallickal uint8_t ulp_count = 0, ulp_base_num = 0; 35784eea99d5SJayamohan Kallickal uint16_t cid_count_ulp[BEISCSI_ULP_COUNT] = { 0 }; 35796733b39aSJayamohan Kallickal 35806733b39aSJayamohan Kallickal idx = 0; 35816733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 35826733b39aSJayamohan Kallickal mem_descr += HWI_MEM_WRB; 35836733b39aSJayamohan Kallickal pwrb_arr = kmalloc(sizeof(*pwrb_arr) * phba->params.cxns_per_ctrl, 35846733b39aSJayamohan Kallickal GFP_KERNEL); 35856733b39aSJayamohan Kallickal if (!pwrb_arr) { 358699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 358799bc5d55SJohn Soni Jose "BM_%d : Memory alloc failed in create wrb ring.\n"); 35886733b39aSJayamohan Kallickal return -ENOMEM; 35896733b39aSJayamohan Kallickal } 35906733b39aSJayamohan Kallickal wrb_vaddr = mem_descr->mem_array[idx].virtual_address; 35916733b39aSJayamohan Kallickal pa_addr_lo = mem_descr->mem_array[idx].bus_address.u.a64.address; 35926733b39aSJayamohan Kallickal num_wrb_rings = mem_descr->mem_array[idx].size / 35936733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn * sizeof(struct iscsi_wrb)); 35946733b39aSJayamohan Kallickal 35956733b39aSJayamohan Kallickal for (num = 0; num < phba->params.cxns_per_ctrl; num++) { 35966733b39aSJayamohan Kallickal if (num_wrb_rings) { 35976733b39aSJayamohan Kallickal pwrb_arr[num].virtual_address = wrb_vaddr; 35986733b39aSJayamohan Kallickal pwrb_arr[num].bus_address.u.a64.address = pa_addr_lo; 35996733b39aSJayamohan Kallickal pwrb_arr[num].size = phba->params.wrbs_per_cxn * 36006733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb); 36016733b39aSJayamohan Kallickal wrb_vaddr += pwrb_arr[num].size; 36026733b39aSJayamohan Kallickal pa_addr_lo += pwrb_arr[num].size; 36036733b39aSJayamohan Kallickal num_wrb_rings--; 36046733b39aSJayamohan Kallickal } else { 36056733b39aSJayamohan Kallickal idx++; 36066733b39aSJayamohan Kallickal wrb_vaddr = mem_descr->mem_array[idx].virtual_address; 36076733b39aSJayamohan Kallickal pa_addr_lo = mem_descr->mem_array[idx].\ 36086733b39aSJayamohan Kallickal bus_address.u.a64.address; 36096733b39aSJayamohan Kallickal num_wrb_rings = mem_descr->mem_array[idx].size / 36106733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn * 36116733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb)); 36126733b39aSJayamohan Kallickal pwrb_arr[num].virtual_address = wrb_vaddr; 36136733b39aSJayamohan Kallickal pwrb_arr[num].bus_address.u.a64.address\ 36146733b39aSJayamohan Kallickal = pa_addr_lo; 36156733b39aSJayamohan Kallickal pwrb_arr[num].size = phba->params.wrbs_per_cxn * 36166733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb); 36176733b39aSJayamohan Kallickal wrb_vaddr += pwrb_arr[num].size; 36186733b39aSJayamohan Kallickal pa_addr_lo += pwrb_arr[num].size; 36196733b39aSJayamohan Kallickal num_wrb_rings--; 36206733b39aSJayamohan Kallickal } 36216733b39aSJayamohan Kallickal } 36224eea99d5SJayamohan Kallickal 36234eea99d5SJayamohan Kallickal /* Get the ULP Count */ 36244eea99d5SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) 36254eea99d5SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { 36264eea99d5SJayamohan Kallickal ulp_count++; 36274eea99d5SJayamohan Kallickal ulp_base_num = ulp_num; 36284eea99d5SJayamohan Kallickal cid_count_ulp[ulp_num] = 36294eea99d5SJayamohan Kallickal BEISCSI_GET_CID_COUNT(phba, ulp_num); 36304eea99d5SJayamohan Kallickal } 36314eea99d5SJayamohan Kallickal 36326733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 36336733b39aSJayamohan Kallickal wrb_mem_index = 0; 36346733b39aSJayamohan Kallickal offset = 0; 36356733b39aSJayamohan Kallickal size = 0; 36366733b39aSJayamohan Kallickal 36374eea99d5SJayamohan Kallickal if (ulp_count > 1) { 36384eea99d5SJayamohan Kallickal ulp_base_num = (ulp_base_num + 1) % BEISCSI_ULP_COUNT; 36394eea99d5SJayamohan Kallickal 36404eea99d5SJayamohan Kallickal if (!cid_count_ulp[ulp_base_num]) 36414eea99d5SJayamohan Kallickal ulp_base_num = (ulp_base_num + 1) % 36424eea99d5SJayamohan Kallickal BEISCSI_ULP_COUNT; 36434eea99d5SJayamohan Kallickal 36444eea99d5SJayamohan Kallickal cid_count_ulp[ulp_base_num]--; 36454eea99d5SJayamohan Kallickal } 36464eea99d5SJayamohan Kallickal 36474eea99d5SJayamohan Kallickal 36486733b39aSJayamohan Kallickal hwi_build_be_sgl_by_offset(phba, &pwrb_arr[i], &sgl); 36496733b39aSJayamohan Kallickal status = be_cmd_wrbq_create(&phba->ctrl, &sgl, 36504eea99d5SJayamohan Kallickal &phwi_context->be_wrbq[i], 36514eea99d5SJayamohan Kallickal &phwi_ctrlr->wrb_context[i], 36524eea99d5SJayamohan Kallickal ulp_base_num); 36536733b39aSJayamohan Kallickal if (status != 0) { 365499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 365599bc5d55SJohn Soni Jose "BM_%d : wrbq create failed."); 36561462b8ffSDan Carpenter kfree(pwrb_arr); 36576733b39aSJayamohan Kallickal return status; 36586733b39aSJayamohan Kallickal } 3659a7909b39SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[i]; 3660a7909b39SJayamohan Kallickal BE_SET_CID_TO_CRI(i, pwrb_context->cid); 36616733b39aSJayamohan Kallickal } 36626733b39aSJayamohan Kallickal kfree(pwrb_arr); 36636733b39aSJayamohan Kallickal return 0; 36646733b39aSJayamohan Kallickal } 36656733b39aSJayamohan Kallickal 36666733b39aSJayamohan Kallickal static void free_wrb_handles(struct beiscsi_hba *phba) 36676733b39aSJayamohan Kallickal { 36686733b39aSJayamohan Kallickal unsigned int index; 36696733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 36706733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 36716733b39aSJayamohan Kallickal 36726733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 3673a7909b39SJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl; index++) { 36746733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 36756733b39aSJayamohan Kallickal kfree(pwrb_context->pwrb_handle_base); 36766733b39aSJayamohan Kallickal kfree(pwrb_context->pwrb_handle_basestd); 36776733b39aSJayamohan Kallickal } 36786733b39aSJayamohan Kallickal } 36796733b39aSJayamohan Kallickal 3680bfead3b2SJayamohan Kallickal static void be_mcc_queues_destroy(struct beiscsi_hba *phba) 3681bfead3b2SJayamohan Kallickal { 3682bfead3b2SJayamohan Kallickal struct be_queue_info *q; 3683bfead3b2SJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 3684bfead3b2SJayamohan Kallickal 3685bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.q; 36864e2bdf7aSJohn Soni Jose if (q->created) { 3687bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_MCCQ); 3688bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 36894e2bdf7aSJohn Soni Jose } 3690bfead3b2SJayamohan Kallickal 3691bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.cq; 36924e2bdf7aSJohn Soni Jose if (q->created) { 3693bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ); 3694bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 3695bfead3b2SJayamohan Kallickal } 36964e2bdf7aSJohn Soni Jose } 3697bfead3b2SJayamohan Kallickal 36986733b39aSJayamohan Kallickal static void hwi_cleanup(struct beiscsi_hba *phba) 36996733b39aSJayamohan Kallickal { 37006733b39aSJayamohan Kallickal struct be_queue_info *q; 37016733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 37026733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 37036733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 3704a7909b39SJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 370523188167SJayamohan Kallickal int i, eq_for_mcc, ulp_num; 37066733b39aSJayamohan Kallickal 37076733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 37086733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 370915a90fe0SJayamohan Kallickal 371015a90fe0SJayamohan Kallickal be_cmd_iscsi_remove_template_hdr(ctrl); 371115a90fe0SJayamohan Kallickal 37126733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 37136733b39aSJayamohan Kallickal q = &phwi_context->be_wrbq[i]; 37146733b39aSJayamohan Kallickal if (q->created) 37156733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ); 37166733b39aSJayamohan Kallickal } 3717a7909b39SJayamohan Kallickal kfree(phwi_context->be_wrbq); 37186733b39aSJayamohan Kallickal free_wrb_handles(phba); 37196733b39aSJayamohan Kallickal 37208a86e833SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 37218a86e833SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { 37228a86e833SJayamohan Kallickal 37238a86e833SJayamohan Kallickal q = &phwi_context->be_def_hdrq[ulp_num]; 37246733b39aSJayamohan Kallickal if (q->created) 37256733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ); 37266733b39aSJayamohan Kallickal 37278a86e833SJayamohan Kallickal q = &phwi_context->be_def_dataq[ulp_num]; 37286733b39aSJayamohan Kallickal if (q->created) 37296733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ); 37306733b39aSJayamohan Kallickal 37318a86e833SJayamohan Kallickal pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num]; 37328a86e833SJayamohan Kallickal } 37338a86e833SJayamohan Kallickal } 37348a86e833SJayamohan Kallickal 37356733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL); 37366733b39aSJayamohan Kallickal 3737bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus); i++) { 3738bfead3b2SJayamohan Kallickal q = &phwi_context->be_cq[i]; 37394e2bdf7aSJohn Soni Jose if (q->created) { 37404e2bdf7aSJohn Soni Jose be_queue_free(phba, q); 37416733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ); 3742bfead3b2SJayamohan Kallickal } 37434e2bdf7aSJohn Soni Jose } 374423188167SJayamohan Kallickal 374523188167SJayamohan Kallickal be_mcc_queues_destroy(phba); 3746bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 374723188167SJayamohan Kallickal eq_for_mcc = 1; 3748bfead3b2SJayamohan Kallickal else 374923188167SJayamohan Kallickal eq_for_mcc = 0; 375023188167SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) { 3751bfead3b2SJayamohan Kallickal q = &phwi_context->be_eq[i].q; 37524e2bdf7aSJohn Soni Jose if (q->created) { 37534e2bdf7aSJohn Soni Jose be_queue_free(phba, q); 37546733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ); 37556733b39aSJayamohan Kallickal } 37564e2bdf7aSJohn Soni Jose } 37570283fbb1SJayamohan Kallickal be_cmd_fw_uninit(ctrl); 3758bfead3b2SJayamohan Kallickal } 3759bfead3b2SJayamohan Kallickal 3760bfead3b2SJayamohan Kallickal static int be_mcc_queues_create(struct beiscsi_hba *phba, 3761bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context) 3762bfead3b2SJayamohan Kallickal { 3763bfead3b2SJayamohan Kallickal struct be_queue_info *q, *cq; 3764bfead3b2SJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 3765bfead3b2SJayamohan Kallickal 3766bfead3b2SJayamohan Kallickal /* Alloc MCC compl queue */ 3767bfead3b2SJayamohan Kallickal cq = &phba->ctrl.mcc_obj.cq; 3768bfead3b2SJayamohan Kallickal if (be_queue_alloc(phba, cq, MCC_CQ_LEN, 3769bfead3b2SJayamohan Kallickal sizeof(struct be_mcc_compl))) 3770bfead3b2SJayamohan Kallickal goto err; 3771bfead3b2SJayamohan Kallickal /* Ask BE to create MCC compl queue; */ 3772bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 3773bfead3b2SJayamohan Kallickal if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq 3774bfead3b2SJayamohan Kallickal [phba->num_cpus].q, false, true, 0)) 3775bfead3b2SJayamohan Kallickal goto mcc_cq_free; 3776bfead3b2SJayamohan Kallickal } else { 3777bfead3b2SJayamohan Kallickal if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq[0].q, 3778bfead3b2SJayamohan Kallickal false, true, 0)) 3779bfead3b2SJayamohan Kallickal goto mcc_cq_free; 3780bfead3b2SJayamohan Kallickal } 3781bfead3b2SJayamohan Kallickal 3782bfead3b2SJayamohan Kallickal /* Alloc MCC queue */ 3783bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.q; 3784bfead3b2SJayamohan Kallickal if (be_queue_alloc(phba, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb))) 3785bfead3b2SJayamohan Kallickal goto mcc_cq_destroy; 3786bfead3b2SJayamohan Kallickal 3787bfead3b2SJayamohan Kallickal /* Ask BE to create MCC queue */ 378835e66019SJayamohan Kallickal if (beiscsi_cmd_mccq_create(phba, q, cq)) 3789bfead3b2SJayamohan Kallickal goto mcc_q_free; 3790bfead3b2SJayamohan Kallickal 3791bfead3b2SJayamohan Kallickal return 0; 3792bfead3b2SJayamohan Kallickal 3793bfead3b2SJayamohan Kallickal mcc_q_free: 3794bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 3795bfead3b2SJayamohan Kallickal mcc_cq_destroy: 3796bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, cq, QTYPE_CQ); 3797bfead3b2SJayamohan Kallickal mcc_cq_free: 3798bfead3b2SJayamohan Kallickal be_queue_free(phba, cq); 3799bfead3b2SJayamohan Kallickal err: 3800d3ad2bb3SJayamohan Kallickal return -ENOMEM; 3801bfead3b2SJayamohan Kallickal } 3802bfead3b2SJayamohan Kallickal 3803107dfcbaSJohn Soni Jose /** 3804107dfcbaSJohn Soni Jose * find_num_cpus()- Get the CPU online count 3805107dfcbaSJohn Soni Jose * @phba: ptr to priv structure 3806107dfcbaSJohn Soni Jose * 3807107dfcbaSJohn Soni Jose * CPU count is used for creating EQ. 3808107dfcbaSJohn Soni Jose **/ 3809107dfcbaSJohn Soni Jose static void find_num_cpus(struct beiscsi_hba *phba) 3810bfead3b2SJayamohan Kallickal { 3811bfead3b2SJayamohan Kallickal int num_cpus = 0; 3812bfead3b2SJayamohan Kallickal 3813bfead3b2SJayamohan Kallickal num_cpus = num_online_cpus(); 3814bfead3b2SJayamohan Kallickal 381522abeef0SJohn Soni Jose switch (phba->generation) { 381622abeef0SJohn Soni Jose case BE_GEN2: 381722abeef0SJohn Soni Jose case BE_GEN3: 381822abeef0SJohn Soni Jose phba->num_cpus = (num_cpus > BEISCSI_MAX_NUM_CPUS) ? 381922abeef0SJohn Soni Jose BEISCSI_MAX_NUM_CPUS : num_cpus; 382022abeef0SJohn Soni Jose break; 382122abeef0SJohn Soni Jose case BE_GEN4: 382268c26a3aSJayamohan Kallickal /* 382368c26a3aSJayamohan Kallickal * If eqid_count == 1 fall back to 382468c26a3aSJayamohan Kallickal * INTX mechanism 382568c26a3aSJayamohan Kallickal **/ 382668c26a3aSJayamohan Kallickal if (phba->fw_config.eqid_count == 1) { 382768c26a3aSJayamohan Kallickal enable_msix = 0; 382868c26a3aSJayamohan Kallickal phba->num_cpus = 1; 382968c26a3aSJayamohan Kallickal return; 383068c26a3aSJayamohan Kallickal } 383168c26a3aSJayamohan Kallickal 383268c26a3aSJayamohan Kallickal phba->num_cpus = 383368c26a3aSJayamohan Kallickal (num_cpus > (phba->fw_config.eqid_count - 1)) ? 383468c26a3aSJayamohan Kallickal (phba->fw_config.eqid_count - 1) : num_cpus; 383522abeef0SJohn Soni Jose break; 383622abeef0SJohn Soni Jose default: 383722abeef0SJohn Soni Jose phba->num_cpus = 1; 383822abeef0SJohn Soni Jose } 3839bfead3b2SJayamohan Kallickal } 38406733b39aSJayamohan Kallickal 38416733b39aSJayamohan Kallickal static int hwi_init_port(struct beiscsi_hba *phba) 38426733b39aSJayamohan Kallickal { 38436733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 38446733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 38456733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz; 38466733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 38478a86e833SJayamohan Kallickal int status, ulp_num; 38486733b39aSJayamohan Kallickal 38496733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 38506733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 385173af08e1SJayamohan Kallickal phwi_context->max_eqd = 128; 3852bfead3b2SJayamohan Kallickal phwi_context->min_eqd = 0; 385373af08e1SJayamohan Kallickal phwi_context->cur_eqd = 0; 38546733b39aSJayamohan Kallickal be_cmd_fw_initialize(&phba->ctrl); 385553aefe25SJitendra Bhivare /* set optic state to unknown */ 385653aefe25SJitendra Bhivare phba->optic_state = 0xff; 3857bfead3b2SJayamohan Kallickal 3858bfead3b2SJayamohan Kallickal status = beiscsi_create_eqs(phba, phwi_context); 38596733b39aSJayamohan Kallickal if (status != 0) { 386099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 386199bc5d55SJohn Soni Jose "BM_%d : EQ not created\n"); 38626733b39aSJayamohan Kallickal goto error; 38636733b39aSJayamohan Kallickal } 38646733b39aSJayamohan Kallickal 3865bfead3b2SJayamohan Kallickal status = be_mcc_queues_create(phba, phwi_context); 3866bfead3b2SJayamohan Kallickal if (status != 0) 3867bfead3b2SJayamohan Kallickal goto error; 3868bfead3b2SJayamohan Kallickal 3869bfead3b2SJayamohan Kallickal status = mgmt_check_supported_fw(ctrl, phba); 38706733b39aSJayamohan Kallickal if (status != 0) { 387199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 387299bc5d55SJohn Soni Jose "BM_%d : Unsupported fw version\n"); 38736733b39aSJayamohan Kallickal goto error; 38746733b39aSJayamohan Kallickal } 38756733b39aSJayamohan Kallickal 3876bfead3b2SJayamohan Kallickal status = beiscsi_create_cqs(phba, phwi_context); 38776733b39aSJayamohan Kallickal if (status != 0) { 387899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 387999bc5d55SJohn Soni Jose "BM_%d : CQ not created\n"); 38806733b39aSJayamohan Kallickal goto error; 38816733b39aSJayamohan Kallickal } 38826733b39aSJayamohan Kallickal 38838a86e833SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 38848a86e833SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { 38858a86e833SJayamohan Kallickal 38868a86e833SJayamohan Kallickal def_pdu_ring_sz = 38878a86e833SJayamohan Kallickal BEISCSI_GET_CID_COUNT(phba, ulp_num) * 38888a86e833SJayamohan Kallickal sizeof(struct phys_addr); 38898a86e833SJayamohan Kallickal 38908a86e833SJayamohan Kallickal status = beiscsi_create_def_hdr(phba, phwi_context, 38918a86e833SJayamohan Kallickal phwi_ctrlr, 38928a86e833SJayamohan Kallickal def_pdu_ring_sz, 38938a86e833SJayamohan Kallickal ulp_num); 38946733b39aSJayamohan Kallickal if (status != 0) { 389599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 38968a86e833SJayamohan Kallickal "BM_%d : Default Header not created for ULP : %d\n", 38978a86e833SJayamohan Kallickal ulp_num); 38986733b39aSJayamohan Kallickal goto error; 38996733b39aSJayamohan Kallickal } 39006733b39aSJayamohan Kallickal 39016733b39aSJayamohan Kallickal status = beiscsi_create_def_data(phba, phwi_context, 39028a86e833SJayamohan Kallickal phwi_ctrlr, 39038a86e833SJayamohan Kallickal def_pdu_ring_sz, 39048a86e833SJayamohan Kallickal ulp_num); 39056733b39aSJayamohan Kallickal if (status != 0) { 390699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 39078a86e833SJayamohan Kallickal "BM_%d : Default Data not created for ULP : %d\n", 39088a86e833SJayamohan Kallickal ulp_num); 39096733b39aSJayamohan Kallickal goto error; 39106733b39aSJayamohan Kallickal } 39118a86e833SJayamohan Kallickal } 39128a86e833SJayamohan Kallickal } 39136733b39aSJayamohan Kallickal 39146733b39aSJayamohan Kallickal status = beiscsi_post_pages(phba); 39156733b39aSJayamohan Kallickal if (status != 0) { 391699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 391799bc5d55SJohn Soni Jose "BM_%d : Post SGL Pages Failed\n"); 39186733b39aSJayamohan Kallickal goto error; 39196733b39aSJayamohan Kallickal } 39206733b39aSJayamohan Kallickal 392115a90fe0SJayamohan Kallickal status = beiscsi_post_template_hdr(phba); 392215a90fe0SJayamohan Kallickal if (status != 0) { 392315a90fe0SJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 392415a90fe0SJayamohan Kallickal "BM_%d : Template HDR Posting for CXN Failed\n"); 392515a90fe0SJayamohan Kallickal } 392615a90fe0SJayamohan Kallickal 39276733b39aSJayamohan Kallickal status = beiscsi_create_wrb_rings(phba, phwi_context, phwi_ctrlr); 39286733b39aSJayamohan Kallickal if (status != 0) { 392999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 393099bc5d55SJohn Soni Jose "BM_%d : WRB Rings not created\n"); 39316733b39aSJayamohan Kallickal goto error; 39326733b39aSJayamohan Kallickal } 39336733b39aSJayamohan Kallickal 39348a86e833SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 39358a86e833SJayamohan Kallickal uint16_t async_arr_idx = 0; 39368a86e833SJayamohan Kallickal 39378a86e833SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { 39388a86e833SJayamohan Kallickal uint16_t cri = 0; 39398a86e833SJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 39408a86e833SJayamohan Kallickal 39418a86e833SJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX( 39428a86e833SJayamohan Kallickal phwi_ctrlr, ulp_num); 39438a86e833SJayamohan Kallickal for (cri = 0; cri < 39448a86e833SJayamohan Kallickal phba->params.cxns_per_ctrl; cri++) { 39458a86e833SJayamohan Kallickal if (ulp_num == BEISCSI_GET_ULP_FROM_CRI 39468a86e833SJayamohan Kallickal (phwi_ctrlr, cri)) 39478a86e833SJayamohan Kallickal pasync_ctx->cid_to_async_cri_map[ 39488a86e833SJayamohan Kallickal phwi_ctrlr->wrb_context[cri].cid] = 39498a86e833SJayamohan Kallickal async_arr_idx++; 39508a86e833SJayamohan Kallickal } 39518a86e833SJayamohan Kallickal } 39528a86e833SJayamohan Kallickal } 39538a86e833SJayamohan Kallickal 395499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 395599bc5d55SJohn Soni Jose "BM_%d : hwi_init_port success\n"); 39566733b39aSJayamohan Kallickal return 0; 39576733b39aSJayamohan Kallickal 39586733b39aSJayamohan Kallickal error: 395999bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 396099bc5d55SJohn Soni Jose "BM_%d : hwi_init_port failed"); 39616733b39aSJayamohan Kallickal hwi_cleanup(phba); 3962a49e06d5SJayamohan Kallickal return status; 39636733b39aSJayamohan Kallickal } 39646733b39aSJayamohan Kallickal 39656733b39aSJayamohan Kallickal static int hwi_init_controller(struct beiscsi_hba *phba) 39666733b39aSJayamohan Kallickal { 39676733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 39686733b39aSJayamohan Kallickal 39696733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 39706733b39aSJayamohan Kallickal if (1 == phba->init_mem[HWI_MEM_ADDN_CONTEXT].num_elements) { 39716733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt = (struct hwi_context_memory *)phba-> 39726733b39aSJayamohan Kallickal init_mem[HWI_MEM_ADDN_CONTEXT].mem_array[0].virtual_address; 397399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 397499bc5d55SJohn Soni Jose "BM_%d : phwi_ctrlr->phwi_ctxt=%p\n", 39756733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt); 39766733b39aSJayamohan Kallickal } else { 397799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 397899bc5d55SJohn Soni Jose "BM_%d : HWI_MEM_ADDN_CONTEXT is more " 397999bc5d55SJohn Soni Jose "than one element.Failing to load\n"); 39806733b39aSJayamohan Kallickal return -ENOMEM; 39816733b39aSJayamohan Kallickal } 39826733b39aSJayamohan Kallickal 39836733b39aSJayamohan Kallickal iscsi_init_global_templates(phba); 39843ec78271SJayamohan Kallickal if (beiscsi_init_wrb_handle(phba)) 39853ec78271SJayamohan Kallickal return -ENOMEM; 39863ec78271SJayamohan Kallickal 3987a7909b39SJayamohan Kallickal if (hwi_init_async_pdu_ctx(phba)) { 3988a7909b39SJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 3989a7909b39SJayamohan Kallickal "BM_%d : hwi_init_async_pdu_ctx failed\n"); 3990a7909b39SJayamohan Kallickal return -ENOMEM; 3991a7909b39SJayamohan Kallickal } 3992a7909b39SJayamohan Kallickal 39936733b39aSJayamohan Kallickal if (hwi_init_port(phba) != 0) { 399499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 399599bc5d55SJohn Soni Jose "BM_%d : hwi_init_controller failed\n"); 399699bc5d55SJohn Soni Jose 39976733b39aSJayamohan Kallickal return -ENOMEM; 39986733b39aSJayamohan Kallickal } 39996733b39aSJayamohan Kallickal return 0; 40006733b39aSJayamohan Kallickal } 40016733b39aSJayamohan Kallickal 40026733b39aSJayamohan Kallickal static void beiscsi_free_mem(struct beiscsi_hba *phba) 40036733b39aSJayamohan Kallickal { 40046733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 40056733b39aSJayamohan Kallickal int i, j; 40066733b39aSJayamohan Kallickal 40076733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 40086733b39aSJayamohan Kallickal i = 0; 40096733b39aSJayamohan Kallickal j = 0; 40106733b39aSJayamohan Kallickal for (i = 0; i < SE_MEM_MAX; i++) { 40116733b39aSJayamohan Kallickal for (j = mem_descr->num_elements; j > 0; j--) { 40126733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 40136733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].size, 40146733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].virtual_address, 4015457ff3b7SJayamohan Kallickal (unsigned long)mem_descr->mem_array[j - 1]. 4016457ff3b7SJayamohan Kallickal bus_address.u.a64.address); 40176733b39aSJayamohan Kallickal } 40188a86e833SJayamohan Kallickal 40196733b39aSJayamohan Kallickal kfree(mem_descr->mem_array); 40206733b39aSJayamohan Kallickal mem_descr++; 40216733b39aSJayamohan Kallickal } 40226733b39aSJayamohan Kallickal kfree(phba->init_mem); 4023a7909b39SJayamohan Kallickal kfree(phba->phwi_ctrlr->wrb_context); 40246733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 40256733b39aSJayamohan Kallickal } 40266733b39aSJayamohan Kallickal 40276733b39aSJayamohan Kallickal static int beiscsi_init_controller(struct beiscsi_hba *phba) 40286733b39aSJayamohan Kallickal { 40296733b39aSJayamohan Kallickal int ret = -ENOMEM; 40306733b39aSJayamohan Kallickal 40316733b39aSJayamohan Kallickal ret = beiscsi_get_memory(phba); 40326733b39aSJayamohan Kallickal if (ret < 0) { 403399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 403499bc5d55SJohn Soni Jose "BM_%d : beiscsi_dev_probe -" 40356733b39aSJayamohan Kallickal "Failed in beiscsi_alloc_memory\n"); 40366733b39aSJayamohan Kallickal return ret; 40376733b39aSJayamohan Kallickal } 40386733b39aSJayamohan Kallickal 40396733b39aSJayamohan Kallickal ret = hwi_init_controller(phba); 40406733b39aSJayamohan Kallickal if (ret) 40416733b39aSJayamohan Kallickal goto free_init; 404299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 404399bc5d55SJohn Soni Jose "BM_%d : Return success from beiscsi_init_controller"); 404499bc5d55SJohn Soni Jose 40456733b39aSJayamohan Kallickal return 0; 40466733b39aSJayamohan Kallickal 40476733b39aSJayamohan Kallickal free_init: 40486733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 4049a49e06d5SJayamohan Kallickal return ret; 40506733b39aSJayamohan Kallickal } 40516733b39aSJayamohan Kallickal 40526733b39aSJayamohan Kallickal static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba) 40536733b39aSJayamohan Kallickal { 40546733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg; 40556733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 40566733b39aSJayamohan Kallickal struct iscsi_sge *pfrag; 405790622db3SJayamohan Kallickal unsigned int arr_index, i, idx; 405890622db3SJayamohan Kallickal unsigned int ulp_icd_start, ulp_num = 0; 40596733b39aSJayamohan Kallickal 40606733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl = 0; 40616733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl = 0; 4062bfead3b2SJayamohan Kallickal 40636733b39aSJayamohan Kallickal mem_descr_sglh = phba->init_mem; 40646733b39aSJayamohan Kallickal mem_descr_sglh += HWI_MEM_SGLH; 40656733b39aSJayamohan Kallickal if (1 == mem_descr_sglh->num_elements) { 40666733b39aSJayamohan Kallickal phba->io_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) * 40676733b39aSJayamohan Kallickal phba->params.ios_per_ctrl, 40686733b39aSJayamohan Kallickal GFP_KERNEL); 40696733b39aSJayamohan Kallickal if (!phba->io_sgl_hndl_base) { 407099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 407199bc5d55SJohn Soni Jose "BM_%d : Mem Alloc Failed. Failing to load\n"); 40726733b39aSJayamohan Kallickal return -ENOMEM; 40736733b39aSJayamohan Kallickal } 40746733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) * 40756733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - 40766733b39aSJayamohan Kallickal phba->params.ios_per_ctrl), 40776733b39aSJayamohan Kallickal GFP_KERNEL); 40786733b39aSJayamohan Kallickal if (!phba->eh_sgl_hndl_base) { 40796733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 408099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 408199bc5d55SJohn Soni Jose "BM_%d : Mem Alloc Failed. Failing to load\n"); 40826733b39aSJayamohan Kallickal return -ENOMEM; 40836733b39aSJayamohan Kallickal } 40846733b39aSJayamohan Kallickal } else { 408599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 408699bc5d55SJohn Soni Jose "BM_%d : HWI_MEM_SGLH is more than one element." 40876733b39aSJayamohan Kallickal "Failing to load\n"); 40886733b39aSJayamohan Kallickal return -ENOMEM; 40896733b39aSJayamohan Kallickal } 40906733b39aSJayamohan Kallickal 40916733b39aSJayamohan Kallickal arr_index = 0; 40926733b39aSJayamohan Kallickal idx = 0; 40936733b39aSJayamohan Kallickal while (idx < mem_descr_sglh->num_elements) { 40946733b39aSJayamohan Kallickal psgl_handle = mem_descr_sglh->mem_array[idx].virtual_address; 40956733b39aSJayamohan Kallickal 40966733b39aSJayamohan Kallickal for (i = 0; i < (mem_descr_sglh->mem_array[idx].size / 40976733b39aSJayamohan Kallickal sizeof(struct sgl_handle)); i++) { 40986733b39aSJayamohan Kallickal if (arr_index < phba->params.ios_per_ctrl) { 40996733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[arr_index] = psgl_handle; 41006733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl++; 41016733b39aSJayamohan Kallickal arr_index++; 41026733b39aSJayamohan Kallickal } else { 41036733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[arr_index - 41046733b39aSJayamohan Kallickal phba->params.ios_per_ctrl] = 41056733b39aSJayamohan Kallickal psgl_handle; 41066733b39aSJayamohan Kallickal arr_index++; 41076733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl++; 41086733b39aSJayamohan Kallickal } 41096733b39aSJayamohan Kallickal psgl_handle++; 41106733b39aSJayamohan Kallickal } 41116733b39aSJayamohan Kallickal idx++; 41126733b39aSJayamohan Kallickal } 411399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 411499bc5d55SJohn Soni Jose "BM_%d : phba->io_sgl_hndl_avbl=%d" 41156733b39aSJayamohan Kallickal "phba->eh_sgl_hndl_avbl=%d\n", 41166733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl, 41176733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl); 411899bc5d55SJohn Soni Jose 41196733b39aSJayamohan Kallickal mem_descr_sg = phba->init_mem; 41206733b39aSJayamohan Kallickal mem_descr_sg += HWI_MEM_SGE; 412199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 412299bc5d55SJohn Soni Jose "\n BM_%d : mem_descr_sg->num_elements=%d\n", 41236733b39aSJayamohan Kallickal mem_descr_sg->num_elements); 412499bc5d55SJohn Soni Jose 412590622db3SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) 412690622db3SJayamohan Kallickal if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) 412790622db3SJayamohan Kallickal break; 412890622db3SJayamohan Kallickal 412990622db3SJayamohan Kallickal ulp_icd_start = phba->fw_config.iscsi_icd_start[ulp_num]; 413090622db3SJayamohan Kallickal 41316733b39aSJayamohan Kallickal arr_index = 0; 41326733b39aSJayamohan Kallickal idx = 0; 41336733b39aSJayamohan Kallickal while (idx < mem_descr_sg->num_elements) { 41346733b39aSJayamohan Kallickal pfrag = mem_descr_sg->mem_array[idx].virtual_address; 41356733b39aSJayamohan Kallickal 41366733b39aSJayamohan Kallickal for (i = 0; 41376733b39aSJayamohan Kallickal i < (mem_descr_sg->mem_array[idx].size) / 41386733b39aSJayamohan Kallickal (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io); 41396733b39aSJayamohan Kallickal i++) { 41406733b39aSJayamohan Kallickal if (arr_index < phba->params.ios_per_ctrl) 41416733b39aSJayamohan Kallickal psgl_handle = phba->io_sgl_hndl_base[arr_index]; 41426733b39aSJayamohan Kallickal else 41436733b39aSJayamohan Kallickal psgl_handle = phba->eh_sgl_hndl_base[arr_index - 41446733b39aSJayamohan Kallickal phba->params.ios_per_ctrl]; 41456733b39aSJayamohan Kallickal psgl_handle->pfrag = pfrag; 41466733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, pfrag, 0); 41476733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0); 41486733b39aSJayamohan Kallickal pfrag += phba->params.num_sge_per_io; 414990622db3SJayamohan Kallickal psgl_handle->sgl_index = ulp_icd_start + arr_index++; 41506733b39aSJayamohan Kallickal } 41516733b39aSJayamohan Kallickal idx++; 41526733b39aSJayamohan Kallickal } 41536733b39aSJayamohan Kallickal phba->io_sgl_free_index = 0; 41546733b39aSJayamohan Kallickal phba->io_sgl_alloc_index = 0; 41556733b39aSJayamohan Kallickal phba->eh_sgl_free_index = 0; 41566733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index = 0; 41576733b39aSJayamohan Kallickal return 0; 41586733b39aSJayamohan Kallickal } 41596733b39aSJayamohan Kallickal 41606733b39aSJayamohan Kallickal static int hba_setup_cid_tbls(struct beiscsi_hba *phba) 41616733b39aSJayamohan Kallickal { 41620a3db7c0SJayamohan Kallickal int ret; 41630a3db7c0SJayamohan Kallickal uint16_t i, ulp_num; 41640a3db7c0SJayamohan Kallickal struct ulp_cid_info *ptr_cid_info = NULL; 41656733b39aSJayamohan Kallickal 41660a3db7c0SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 41670a3db7c0SJayamohan Kallickal if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) { 41680a3db7c0SJayamohan Kallickal ptr_cid_info = kzalloc(sizeof(struct ulp_cid_info), 41696733b39aSJayamohan Kallickal GFP_KERNEL); 41700a3db7c0SJayamohan Kallickal 41710a3db7c0SJayamohan Kallickal if (!ptr_cid_info) { 417299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 41730a3db7c0SJayamohan Kallickal "BM_%d : Failed to allocate memory" 41740a3db7c0SJayamohan Kallickal "for ULP_CID_INFO for ULP : %d\n", 41750a3db7c0SJayamohan Kallickal ulp_num); 41760a3db7c0SJayamohan Kallickal ret = -ENOMEM; 41770a3db7c0SJayamohan Kallickal goto free_memory; 41780a3db7c0SJayamohan Kallickal 41790a3db7c0SJayamohan Kallickal } 41800a3db7c0SJayamohan Kallickal 41810a3db7c0SJayamohan Kallickal /* Allocate memory for CID array */ 41820a3db7c0SJayamohan Kallickal ptr_cid_info->cid_array = kzalloc(sizeof(void *) * 41830a3db7c0SJayamohan Kallickal BEISCSI_GET_CID_COUNT(phba, 41840a3db7c0SJayamohan Kallickal ulp_num), GFP_KERNEL); 41850a3db7c0SJayamohan Kallickal if (!ptr_cid_info->cid_array) { 41860a3db7c0SJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 41870a3db7c0SJayamohan Kallickal "BM_%d : Failed to allocate memory" 41880a3db7c0SJayamohan Kallickal "for CID_ARRAY for ULP : %d\n", 41890a3db7c0SJayamohan Kallickal ulp_num); 41900a3db7c0SJayamohan Kallickal kfree(ptr_cid_info); 41910a3db7c0SJayamohan Kallickal ptr_cid_info = NULL; 41920a3db7c0SJayamohan Kallickal ret = -ENOMEM; 41930a3db7c0SJayamohan Kallickal 41940a3db7c0SJayamohan Kallickal goto free_memory; 41950a3db7c0SJayamohan Kallickal } 41960a3db7c0SJayamohan Kallickal ptr_cid_info->avlbl_cids = BEISCSI_GET_CID_COUNT( 41970a3db7c0SJayamohan Kallickal phba, ulp_num); 41980a3db7c0SJayamohan Kallickal 41990a3db7c0SJayamohan Kallickal /* Save the cid_info_array ptr */ 42000a3db7c0SJayamohan Kallickal phba->cid_array_info[ulp_num] = ptr_cid_info; 42010a3db7c0SJayamohan Kallickal } 42026733b39aSJayamohan Kallickal } 4203c2462288SJayamohan Kallickal phba->ep_array = kzalloc(sizeof(struct iscsi_endpoint *) * 4204a7909b39SJayamohan Kallickal phba->params.cxns_per_ctrl, GFP_KERNEL); 42056733b39aSJayamohan Kallickal if (!phba->ep_array) { 420699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 420799bc5d55SJohn Soni Jose "BM_%d : Failed to allocate memory in " 42086733b39aSJayamohan Kallickal "hba_setup_cid_tbls\n"); 42090a3db7c0SJayamohan Kallickal ret = -ENOMEM; 42100a3db7c0SJayamohan Kallickal 42110a3db7c0SJayamohan Kallickal goto free_memory; 42126733b39aSJayamohan Kallickal } 4213a7909b39SJayamohan Kallickal 4214a7909b39SJayamohan Kallickal phba->conn_table = kzalloc(sizeof(struct beiscsi_conn *) * 4215a7909b39SJayamohan Kallickal phba->params.cxns_per_ctrl, GFP_KERNEL); 4216a7909b39SJayamohan Kallickal if (!phba->conn_table) { 4217a7909b39SJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 4218a7909b39SJayamohan Kallickal "BM_%d : Failed to allocate memory in" 4219a7909b39SJayamohan Kallickal "hba_setup_cid_tbls\n"); 4220a7909b39SJayamohan Kallickal 4221a7909b39SJayamohan Kallickal kfree(phba->ep_array); 4222a7909b39SJayamohan Kallickal phba->ep_array = NULL; 42230a3db7c0SJayamohan Kallickal ret = -ENOMEM; 42245f2d25efSTomas Henzl 42255f2d25efSTomas Henzl goto free_memory; 42266733b39aSJayamohan Kallickal } 4227a7909b39SJayamohan Kallickal 42280a3db7c0SJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 42290a3db7c0SJayamohan Kallickal ulp_num = phba->phwi_ctrlr->wrb_context[i].ulp_num; 4230a7909b39SJayamohan Kallickal 42310a3db7c0SJayamohan Kallickal ptr_cid_info = phba->cid_array_info[ulp_num]; 42320a3db7c0SJayamohan Kallickal ptr_cid_info->cid_array[ptr_cid_info->cid_alloc++] = 42330a3db7c0SJayamohan Kallickal phba->phwi_ctrlr->wrb_context[i].cid; 42340a3db7c0SJayamohan Kallickal 42350a3db7c0SJayamohan Kallickal } 42360a3db7c0SJayamohan Kallickal 42370a3db7c0SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 42380a3db7c0SJayamohan Kallickal if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) { 42390a3db7c0SJayamohan Kallickal ptr_cid_info = phba->cid_array_info[ulp_num]; 42400a3db7c0SJayamohan Kallickal 42410a3db7c0SJayamohan Kallickal ptr_cid_info->cid_alloc = 0; 42420a3db7c0SJayamohan Kallickal ptr_cid_info->cid_free = 0; 42430a3db7c0SJayamohan Kallickal } 42440a3db7c0SJayamohan Kallickal } 42456733b39aSJayamohan Kallickal return 0; 42460a3db7c0SJayamohan Kallickal 42470a3db7c0SJayamohan Kallickal free_memory: 42480a3db7c0SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 42490a3db7c0SJayamohan Kallickal if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) { 42500a3db7c0SJayamohan Kallickal ptr_cid_info = phba->cid_array_info[ulp_num]; 42510a3db7c0SJayamohan Kallickal 42520a3db7c0SJayamohan Kallickal if (ptr_cid_info) { 42530a3db7c0SJayamohan Kallickal kfree(ptr_cid_info->cid_array); 42540a3db7c0SJayamohan Kallickal kfree(ptr_cid_info); 42550a3db7c0SJayamohan Kallickal phba->cid_array_info[ulp_num] = NULL; 42560a3db7c0SJayamohan Kallickal } 42570a3db7c0SJayamohan Kallickal } 42580a3db7c0SJayamohan Kallickal } 42590a3db7c0SJayamohan Kallickal 42600a3db7c0SJayamohan Kallickal return ret; 42616733b39aSJayamohan Kallickal } 42626733b39aSJayamohan Kallickal 4263238f6b72SJayamohan Kallickal static void hwi_enable_intr(struct beiscsi_hba *phba) 42646733b39aSJayamohan Kallickal { 42656733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 42666733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 42676733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 42686733b39aSJayamohan Kallickal struct be_queue_info *eq; 42696733b39aSJayamohan Kallickal u8 __iomem *addr; 4270bfead3b2SJayamohan Kallickal u32 reg, i; 42716733b39aSJayamohan Kallickal u32 enabled; 42726733b39aSJayamohan Kallickal 42736733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 42746733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 42756733b39aSJayamohan Kallickal 42766733b39aSJayamohan Kallickal addr = (u8 __iomem *) ((u8 __iomem *) ctrl->pcicfg + 42776733b39aSJayamohan Kallickal PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET); 42786733b39aSJayamohan Kallickal reg = ioread32(addr); 42796733b39aSJayamohan Kallickal 42806733b39aSJayamohan Kallickal enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 42816733b39aSJayamohan Kallickal if (!enabled) { 42826733b39aSJayamohan Kallickal reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 428399bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 428499bc5d55SJohn Soni Jose "BM_%d : reg =x%08x addr=%p\n", reg, addr); 42856733b39aSJayamohan Kallickal iowrite32(reg, addr); 4286665d6d94SJayamohan Kallickal } 4287665d6d94SJayamohan Kallickal 4288c03af1aeSJayamohan Kallickal if (!phba->msix_enabled) { 4289c03af1aeSJayamohan Kallickal eq = &phwi_context->be_eq[0].q; 429099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 429199bc5d55SJohn Soni Jose "BM_%d : eq->id=%d\n", eq->id); 429299bc5d55SJohn Soni Jose 4293c03af1aeSJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1); 4294c03af1aeSJayamohan Kallickal } else { 4295bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) { 4296bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 429799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 429899bc5d55SJohn Soni Jose "BM_%d : eq->id=%d\n", eq->id); 42996733b39aSJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1); 4300bfead3b2SJayamohan Kallickal } 4301c03af1aeSJayamohan Kallickal } 4302c03af1aeSJayamohan Kallickal } 43036733b39aSJayamohan Kallickal 43046733b39aSJayamohan Kallickal static void hwi_disable_intr(struct beiscsi_hba *phba) 43056733b39aSJayamohan Kallickal { 43066733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 43076733b39aSJayamohan Kallickal 43086733b39aSJayamohan Kallickal u8 __iomem *addr = ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET; 43096733b39aSJayamohan Kallickal u32 reg = ioread32(addr); 43106733b39aSJayamohan Kallickal 43116733b39aSJayamohan Kallickal u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 43126733b39aSJayamohan Kallickal if (enabled) { 43136733b39aSJayamohan Kallickal reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 43146733b39aSJayamohan Kallickal iowrite32(reg, addr); 43156733b39aSJayamohan Kallickal } else 431699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT, 431799bc5d55SJohn Soni Jose "BM_%d : In hwi_disable_intr, Already Disabled\n"); 43186733b39aSJayamohan Kallickal } 43196733b39aSJayamohan Kallickal 43209aef4200SJohn Soni Jose /** 43219aef4200SJohn Soni Jose * beiscsi_get_boot_info()- Get the boot session info 43229aef4200SJohn Soni Jose * @phba: The device priv structure instance 43239aef4200SJohn Soni Jose * 43249aef4200SJohn Soni Jose * Get the boot target info and store in driver priv structure 43259aef4200SJohn Soni Jose * 43269aef4200SJohn Soni Jose * return values 43279aef4200SJohn Soni Jose * Success: 0 43289aef4200SJohn Soni Jose * Failure: Non-Zero Value 43299aef4200SJohn Soni Jose **/ 4330c7acc5b8SJayamohan Kallickal static int beiscsi_get_boot_info(struct beiscsi_hba *phba) 4331c7acc5b8SJayamohan Kallickal { 43320e43895eSMike Christie struct be_cmd_get_session_resp *session_resp; 4333c7acc5b8SJayamohan Kallickal struct be_dma_mem nonemb_cmd; 4334e175defeSJohn Soni Jose unsigned int tag; 43359aef4200SJohn Soni Jose unsigned int s_handle; 4336f457a46fSMike Christie int ret = -ENOMEM; 4337c7acc5b8SJayamohan Kallickal 43389aef4200SJohn Soni Jose /* Get the session handle of the boot target */ 43399aef4200SJohn Soni Jose ret = be_mgmt_get_boot_shandle(phba, &s_handle); 43409aef4200SJohn Soni Jose if (ret) { 434199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 434299bc5d55SJohn Soni Jose BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG, 434399bc5d55SJohn Soni Jose "BM_%d : No boot session\n"); 43443efde862SJohn Soni Jose 43453efde862SJohn Soni Jose if (ret == -ENXIO) 43463efde862SJohn Soni Jose phba->get_boot = 0; 43473efde862SJohn Soni Jose 43483efde862SJohn Soni Jose 43499aef4200SJohn Soni Jose return ret; 4350c7acc5b8SJayamohan Kallickal } 43513efde862SJohn Soni Jose phba->get_boot = 0; 43527c845eb5SJoe Perches nonemb_cmd.va = pci_zalloc_consistent(phba->ctrl.pdev, 4353c7acc5b8SJayamohan Kallickal sizeof(*session_resp), 4354c7acc5b8SJayamohan Kallickal &nonemb_cmd.dma); 4355c7acc5b8SJayamohan Kallickal if (nonemb_cmd.va == NULL) { 435699bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 435799bc5d55SJohn Soni Jose BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG, 435899bc5d55SJohn Soni Jose "BM_%d : Failed to allocate memory for" 4359c7acc5b8SJayamohan Kallickal "beiscsi_get_session_info\n"); 436099bc5d55SJohn Soni Jose 4361c7acc5b8SJayamohan Kallickal return -ENOMEM; 4362c7acc5b8SJayamohan Kallickal } 4363c7acc5b8SJayamohan Kallickal 43649aef4200SJohn Soni Jose tag = mgmt_get_session_info(phba, s_handle, 43650e43895eSMike Christie &nonemb_cmd); 4366c7acc5b8SJayamohan Kallickal if (!tag) { 436799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 436899bc5d55SJohn Soni Jose BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG, 436999bc5d55SJohn Soni Jose "BM_%d : beiscsi_get_session_info" 4370c7acc5b8SJayamohan Kallickal " Failed\n"); 437199bc5d55SJohn Soni Jose 4372c7acc5b8SJayamohan Kallickal goto boot_freemem; 4373e175defeSJohn Soni Jose } 4374c7acc5b8SJayamohan Kallickal 43751957aa7fSJayamohan Kallickal ret = beiscsi_mccq_compl(phba, tag, NULL, &nonemb_cmd); 4376e175defeSJohn Soni Jose if (ret) { 437799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, 437899bc5d55SJohn Soni Jose BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG, 4379e175defeSJohn Soni Jose "BM_%d : beiscsi_get_session_info Failed"); 43801957aa7fSJayamohan Kallickal 43811957aa7fSJayamohan Kallickal if (ret != -EBUSY) 4382c7acc5b8SJayamohan Kallickal goto boot_freemem; 43831957aa7fSJayamohan Kallickal else 43841957aa7fSJayamohan Kallickal return ret; 4385c7acc5b8SJayamohan Kallickal } 4386e175defeSJohn Soni Jose 4387c7acc5b8SJayamohan Kallickal session_resp = nonemb_cmd.va ; 4388f457a46fSMike Christie 4389c7acc5b8SJayamohan Kallickal memcpy(&phba->boot_sess, &session_resp->session_info, 4390c7acc5b8SJayamohan Kallickal sizeof(struct mgmt_session_info)); 43913f4134c1SJohn Soni Jose 43923f4134c1SJohn Soni Jose beiscsi_logout_fw_sess(phba, 43933f4134c1SJohn Soni Jose phba->boot_sess.session_handle); 4394f457a46fSMike Christie ret = 0; 4395f457a46fSMike Christie 4396c7acc5b8SJayamohan Kallickal boot_freemem: 4397c7acc5b8SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 4398c7acc5b8SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 4399f457a46fSMike Christie return ret; 4400f457a46fSMike Christie } 4401f457a46fSMike Christie 4402f457a46fSMike Christie static void beiscsi_boot_release(void *data) 4403f457a46fSMike Christie { 4404f457a46fSMike Christie struct beiscsi_hba *phba = data; 4405f457a46fSMike Christie 4406f457a46fSMike Christie scsi_host_put(phba->shost); 4407f457a46fSMike Christie } 4408f457a46fSMike Christie 4409f457a46fSMike Christie static int beiscsi_setup_boot_info(struct beiscsi_hba *phba) 4410f457a46fSMike Christie { 4411f457a46fSMike Christie struct iscsi_boot_kobj *boot_kobj; 4412f457a46fSMike Christie 4413a3d313eaSJayamohan Kallickal /* it has been created previously */ 4414a3d313eaSJayamohan Kallickal if (phba->boot_kset) 4415a3d313eaSJayamohan Kallickal return 0; 4416a3d313eaSJayamohan Kallickal 4417f457a46fSMike Christie /* get boot info using mgmt cmd */ 4418f457a46fSMike Christie if (beiscsi_get_boot_info(phba)) 4419f457a46fSMike Christie /* Try to see if we can carry on without this */ 4420f457a46fSMike Christie return 0; 4421f457a46fSMike Christie 4422f457a46fSMike Christie phba->boot_kset = iscsi_boot_create_host_kset(phba->shost->host_no); 4423f457a46fSMike Christie if (!phba->boot_kset) 4424f457a46fSMike Christie return -ENOMEM; 4425f457a46fSMike Christie 4426f457a46fSMike Christie /* get a ref because the show function will ref the phba */ 4427f457a46fSMike Christie if (!scsi_host_get(phba->shost)) 4428f457a46fSMike Christie goto free_kset; 4429f457a46fSMike Christie boot_kobj = iscsi_boot_create_target(phba->boot_kset, 0, phba, 4430f457a46fSMike Christie beiscsi_show_boot_tgt_info, 4431f457a46fSMike Christie beiscsi_tgt_get_attr_visibility, 4432f457a46fSMike Christie beiscsi_boot_release); 4433f457a46fSMike Christie if (!boot_kobj) 4434f457a46fSMike Christie goto put_shost; 4435f457a46fSMike Christie 4436f457a46fSMike Christie if (!scsi_host_get(phba->shost)) 4437f457a46fSMike Christie goto free_kset; 4438f457a46fSMike Christie boot_kobj = iscsi_boot_create_initiator(phba->boot_kset, 0, phba, 4439f457a46fSMike Christie beiscsi_show_boot_ini_info, 4440f457a46fSMike Christie beiscsi_ini_get_attr_visibility, 4441f457a46fSMike Christie beiscsi_boot_release); 4442f457a46fSMike Christie if (!boot_kobj) 4443f457a46fSMike Christie goto put_shost; 4444f457a46fSMike Christie 4445f457a46fSMike Christie if (!scsi_host_get(phba->shost)) 4446f457a46fSMike Christie goto free_kset; 4447f457a46fSMike Christie boot_kobj = iscsi_boot_create_ethernet(phba->boot_kset, 0, phba, 4448f457a46fSMike Christie beiscsi_show_boot_eth_info, 4449f457a46fSMike Christie beiscsi_eth_get_attr_visibility, 4450f457a46fSMike Christie beiscsi_boot_release); 4451f457a46fSMike Christie if (!boot_kobj) 4452f457a46fSMike Christie goto put_shost; 4453f457a46fSMike Christie return 0; 4454f457a46fSMike Christie 4455f457a46fSMike Christie put_shost: 4456f457a46fSMike Christie scsi_host_put(phba->shost); 4457f457a46fSMike Christie free_kset: 4458f457a46fSMike Christie iscsi_boot_destroy_kset(phba->boot_kset); 4459c7acc5b8SJayamohan Kallickal return -ENOMEM; 4460c7acc5b8SJayamohan Kallickal } 4461c7acc5b8SJayamohan Kallickal 44626733b39aSJayamohan Kallickal static int beiscsi_init_port(struct beiscsi_hba *phba) 44636733b39aSJayamohan Kallickal { 44646733b39aSJayamohan Kallickal int ret; 44656733b39aSJayamohan Kallickal 44666733b39aSJayamohan Kallickal ret = beiscsi_init_controller(phba); 44676733b39aSJayamohan Kallickal if (ret < 0) { 446899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 446999bc5d55SJohn Soni Jose "BM_%d : beiscsi_dev_probe - Failed in" 44706733b39aSJayamohan Kallickal "beiscsi_init_controller\n"); 44716733b39aSJayamohan Kallickal return ret; 44726733b39aSJayamohan Kallickal } 44736733b39aSJayamohan Kallickal ret = beiscsi_init_sgl_handle(phba); 44746733b39aSJayamohan Kallickal if (ret < 0) { 447599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 447699bc5d55SJohn Soni Jose "BM_%d : beiscsi_dev_probe - Failed in" 44776733b39aSJayamohan Kallickal "beiscsi_init_sgl_handle\n"); 44786733b39aSJayamohan Kallickal goto do_cleanup_ctrlr; 44796733b39aSJayamohan Kallickal } 44806733b39aSJayamohan Kallickal 44816733b39aSJayamohan Kallickal if (hba_setup_cid_tbls(phba)) { 448299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 448399bc5d55SJohn Soni Jose "BM_%d : Failed in hba_setup_cid_tbls\n"); 44846733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 44856733b39aSJayamohan Kallickal kfree(phba->eh_sgl_hndl_base); 44866733b39aSJayamohan Kallickal goto do_cleanup_ctrlr; 44876733b39aSJayamohan Kallickal } 44886733b39aSJayamohan Kallickal 44896733b39aSJayamohan Kallickal return ret; 44906733b39aSJayamohan Kallickal 44916733b39aSJayamohan Kallickal do_cleanup_ctrlr: 44926733b39aSJayamohan Kallickal hwi_cleanup(phba); 44936733b39aSJayamohan Kallickal return ret; 44946733b39aSJayamohan Kallickal } 44956733b39aSJayamohan Kallickal 44966733b39aSJayamohan Kallickal static void hwi_purge_eq(struct beiscsi_hba *phba) 44976733b39aSJayamohan Kallickal { 44986733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 44996733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 45006733b39aSJayamohan Kallickal struct be_queue_info *eq; 45016733b39aSJayamohan Kallickal struct be_eq_entry *eqe = NULL; 4502bfead3b2SJayamohan Kallickal int i, eq_msix; 4503756d29c8SJayamohan Kallickal unsigned int num_processed; 45046733b39aSJayamohan Kallickal 45056733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 45066733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 4507bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 4508bfead3b2SJayamohan Kallickal eq_msix = 1; 4509bfead3b2SJayamohan Kallickal else 4510bfead3b2SJayamohan Kallickal eq_msix = 0; 4511bfead3b2SJayamohan Kallickal 4512bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_msix); i++) { 4513bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 45146733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 4515756d29c8SJayamohan Kallickal num_processed = 0; 45166733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 45176733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 45186733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 45196733b39aSJayamohan Kallickal queue_tail_inc(eq); 45206733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 4521756d29c8SJayamohan Kallickal num_processed++; 45226733b39aSJayamohan Kallickal } 4523756d29c8SJayamohan Kallickal 4524756d29c8SJayamohan Kallickal if (num_processed) 4525756d29c8SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_processed, 1, 1); 45266733b39aSJayamohan Kallickal } 4527bfead3b2SJayamohan Kallickal } 45286733b39aSJayamohan Kallickal 45296733b39aSJayamohan Kallickal static void beiscsi_clean_port(struct beiscsi_hba *phba) 45306733b39aSJayamohan Kallickal { 45310a3db7c0SJayamohan Kallickal int mgmt_status, ulp_num; 45320a3db7c0SJayamohan Kallickal struct ulp_cid_info *ptr_cid_info = NULL; 45336733b39aSJayamohan Kallickal 4534bd41c2bdSJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 4535bd41c2bdSJayamohan Kallickal if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) { 4536bd41c2bdSJayamohan Kallickal mgmt_status = mgmt_epfw_cleanup(phba, ulp_num); 45376733b39aSJayamohan Kallickal if (mgmt_status) 4538bd41c2bdSJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, 4539bd41c2bdSJayamohan Kallickal BEISCSI_LOG_INIT, 4540bd41c2bdSJayamohan Kallickal "BM_%d : mgmt_epfw_cleanup FAILED" 4541bd41c2bdSJayamohan Kallickal " for ULP_%d\n", ulp_num); 4542bd41c2bdSJayamohan Kallickal } 4543bd41c2bdSJayamohan Kallickal } 4544756d29c8SJayamohan Kallickal 45456733b39aSJayamohan Kallickal hwi_purge_eq(phba); 4546756d29c8SJayamohan Kallickal hwi_cleanup(phba); 45476733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 45486733b39aSJayamohan Kallickal kfree(phba->eh_sgl_hndl_base); 45496733b39aSJayamohan Kallickal kfree(phba->ep_array); 4550a7909b39SJayamohan Kallickal kfree(phba->conn_table); 45510a3db7c0SJayamohan Kallickal 45520a3db7c0SJayamohan Kallickal for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { 45530a3db7c0SJayamohan Kallickal if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) { 45540a3db7c0SJayamohan Kallickal ptr_cid_info = phba->cid_array_info[ulp_num]; 45550a3db7c0SJayamohan Kallickal 45560a3db7c0SJayamohan Kallickal if (ptr_cid_info) { 45570a3db7c0SJayamohan Kallickal kfree(ptr_cid_info->cid_array); 45580a3db7c0SJayamohan Kallickal kfree(ptr_cid_info); 45590a3db7c0SJayamohan Kallickal phba->cid_array_info[ulp_num] = NULL; 45600a3db7c0SJayamohan Kallickal } 45610a3db7c0SJayamohan Kallickal } 45620a3db7c0SJayamohan Kallickal } 45630a3db7c0SJayamohan Kallickal 45646733b39aSJayamohan Kallickal } 45656733b39aSJayamohan Kallickal 4566d629c471SJohn Soni Jose /** 456743f388b0SJayamohan Kallickal * beiscsi_free_mgmt_task_handles()- Free driver CXN resources 456843f388b0SJayamohan Kallickal * @beiscsi_conn: ptr to the conn to be cleaned up 45694a4a11b9SJayamohan Kallickal * @task: ptr to iscsi_task resource to be freed. 457043f388b0SJayamohan Kallickal * 457143f388b0SJayamohan Kallickal * Free driver mgmt resources binded to CXN. 457243f388b0SJayamohan Kallickal **/ 457343f388b0SJayamohan Kallickal void 45744a4a11b9SJayamohan Kallickal beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn, 45754a4a11b9SJayamohan Kallickal struct iscsi_task *task) 457643f388b0SJayamohan Kallickal { 457743f388b0SJayamohan Kallickal struct beiscsi_io_task *io_task; 457843f388b0SJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 457943f388b0SJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 458043f388b0SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 4581a7909b39SJayamohan Kallickal uint16_t cri_index = BE_GET_CRI_FROM_CID( 4582a7909b39SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid); 458343f388b0SJayamohan Kallickal 458443f388b0SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 4585a7909b39SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cri_index]; 4586a7909b39SJayamohan Kallickal 45874a4a11b9SJayamohan Kallickal io_task = task->dd_data; 458843f388b0SJayamohan Kallickal 458943f388b0SJayamohan Kallickal if (io_task->pwrb_handle) { 459043f388b0SJayamohan Kallickal memset(io_task->pwrb_handle->pwrb, 0, 459143f388b0SJayamohan Kallickal sizeof(struct iscsi_wrb)); 459243f388b0SJayamohan Kallickal free_wrb_handle(phba, pwrb_context, 459343f388b0SJayamohan Kallickal io_task->pwrb_handle); 459443f388b0SJayamohan Kallickal io_task->pwrb_handle = NULL; 459543f388b0SJayamohan Kallickal } 459643f388b0SJayamohan Kallickal 459743f388b0SJayamohan Kallickal if (io_task->psgl_handle) { 459843f388b0SJayamohan Kallickal spin_lock_bh(&phba->mgmt_sgl_lock); 459943f388b0SJayamohan Kallickal free_mgmt_sgl_handle(phba, 460043f388b0SJayamohan Kallickal io_task->psgl_handle); 460143f388b0SJayamohan Kallickal io_task->psgl_handle = NULL; 46024a4a11b9SJayamohan Kallickal spin_unlock_bh(&phba->mgmt_sgl_lock); 460343f388b0SJayamohan Kallickal } 460443f388b0SJayamohan Kallickal 4605eb1c4692SJohn Soni Jose if (io_task->mtask_addr) { 460643f388b0SJayamohan Kallickal pci_unmap_single(phba->pcidev, 460743f388b0SJayamohan Kallickal io_task->mtask_addr, 460843f388b0SJayamohan Kallickal io_task->mtask_data_count, 460943f388b0SJayamohan Kallickal PCI_DMA_TODEVICE); 4610eb1c4692SJohn Soni Jose io_task->mtask_addr = 0; 4611eb1c4692SJohn Soni Jose } 461243f388b0SJayamohan Kallickal } 461343f388b0SJayamohan Kallickal 461443f388b0SJayamohan Kallickal /** 4615d629c471SJohn Soni Jose * beiscsi_cleanup_task()- Free driver resources of the task 4616d629c471SJohn Soni Jose * @task: ptr to the iscsi task 4617d629c471SJohn Soni Jose * 4618d629c471SJohn Soni Jose **/ 46191282ab76SMike Christie static void beiscsi_cleanup_task(struct iscsi_task *task) 46201282ab76SMike Christie { 46211282ab76SMike Christie struct beiscsi_io_task *io_task = task->dd_data; 46221282ab76SMike Christie struct iscsi_conn *conn = task->conn; 46231282ab76SMike Christie struct beiscsi_conn *beiscsi_conn = conn->dd_data; 46241282ab76SMike Christie struct beiscsi_hba *phba = beiscsi_conn->phba; 46251282ab76SMike Christie struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess; 46261282ab76SMike Christie struct hwi_wrb_context *pwrb_context; 46271282ab76SMike Christie struct hwi_controller *phwi_ctrlr; 4628a7909b39SJayamohan Kallickal uint16_t cri_index = BE_GET_CRI_FROM_CID( 4629a7909b39SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid); 46301282ab76SMike Christie 46311282ab76SMike Christie phwi_ctrlr = phba->phwi_ctrlr; 4632a7909b39SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cri_index]; 46331282ab76SMike Christie 46341282ab76SMike Christie if (io_task->cmd_bhs) { 46351282ab76SMike Christie pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs, 46361282ab76SMike Christie io_task->bhs_pa.u.a64.address); 46371282ab76SMike Christie io_task->cmd_bhs = NULL; 46381282ab76SMike Christie } 46391282ab76SMike Christie 46401282ab76SMike Christie if (task->sc) { 46411282ab76SMike Christie if (io_task->pwrb_handle) { 46421282ab76SMike Christie free_wrb_handle(phba, pwrb_context, 46431282ab76SMike Christie io_task->pwrb_handle); 46441282ab76SMike Christie io_task->pwrb_handle = NULL; 46451282ab76SMike Christie } 46461282ab76SMike Christie 46471282ab76SMike Christie if (io_task->psgl_handle) { 46481282ab76SMike Christie spin_lock(&phba->io_sgl_lock); 46491282ab76SMike Christie free_io_sgl_handle(phba, io_task->psgl_handle); 46501282ab76SMike Christie spin_unlock(&phba->io_sgl_lock); 46511282ab76SMike Christie io_task->psgl_handle = NULL; 46521282ab76SMike Christie } 4653da334977SJayamohan Kallickal 4654da334977SJayamohan Kallickal if (io_task->scsi_cmnd) { 4655da334977SJayamohan Kallickal scsi_dma_unmap(io_task->scsi_cmnd); 4656da334977SJayamohan Kallickal io_task->scsi_cmnd = NULL; 4657da334977SJayamohan Kallickal } 46581282ab76SMike Christie } else { 465943f388b0SJayamohan Kallickal if (!beiscsi_conn->login_in_progress) 46604a4a11b9SJayamohan Kallickal beiscsi_free_mgmt_task_handles(beiscsi_conn, task); 46611282ab76SMike Christie } 46621282ab76SMike Christie } 46631282ab76SMike Christie 46646733b39aSJayamohan Kallickal void 46656733b39aSJayamohan Kallickal beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn, 46666733b39aSJayamohan Kallickal struct beiscsi_offload_params *params) 46676733b39aSJayamohan Kallickal { 46686733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 4669340c99e9SJohn Soni Jose struct hwi_wrb_context *pwrb_context = NULL; 46706733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 46711282ab76SMike Christie struct iscsi_task *task = beiscsi_conn->task; 46721282ab76SMike Christie struct iscsi_session *session = task->conn->session; 46736733b39aSJayamohan Kallickal u32 doorbell = 0; 46746733b39aSJayamohan Kallickal 46756733b39aSJayamohan Kallickal /* 46766733b39aSJayamohan Kallickal * We can always use 0 here because it is reserved by libiscsi for 46776733b39aSJayamohan Kallickal * login/startup related tasks. 46786733b39aSJayamohan Kallickal */ 46791282ab76SMike Christie beiscsi_conn->login_in_progress = 0; 4680659743b0SShlomo Pongratz spin_lock_bh(&session->back_lock); 46811282ab76SMike Christie beiscsi_cleanup_task(task); 4682659743b0SShlomo Pongratz spin_unlock_bh(&session->back_lock); 46831282ab76SMike Christie 4684340c99e9SJohn Soni Jose pwrb_handle = alloc_wrb_handle(phba, beiscsi_conn->beiscsi_conn_cid, 4685340c99e9SJohn Soni Jose &pwrb_context); 46866733b39aSJayamohan Kallickal 4687acb9693cSJohn Soni Jose /* Check for the adapter family */ 46882c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) 4689acb9693cSJohn Soni Jose beiscsi_offload_cxn_v0(params, pwrb_handle, 4690340c99e9SJohn Soni Jose phba->init_mem, 4691340c99e9SJohn Soni Jose pwrb_context); 46922c9dfd36SJayamohan Kallickal else 4693340c99e9SJohn Soni Jose beiscsi_offload_cxn_v2(params, pwrb_handle, 4694340c99e9SJohn Soni Jose pwrb_context); 46956733b39aSJayamohan Kallickal 4696acb9693cSJohn Soni Jose be_dws_le_to_cpu(pwrb_handle->pwrb, 4697acb9693cSJohn Soni Jose sizeof(struct iscsi_target_context_update_wrb)); 46986733b39aSJayamohan Kallickal 46996733b39aSJayamohan Kallickal doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 4700bfead3b2SJayamohan Kallickal doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK) 4701bfead3b2SJayamohan Kallickal << DB_DEF_PDU_WRB_INDEX_SHIFT; 47026733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 47031e4be6ffSJayamohan Kallickal iowrite32(doorbell, phba->db_va + 47041e4be6ffSJayamohan Kallickal beiscsi_conn->doorbell_offset); 47056733b39aSJayamohan Kallickal } 47066733b39aSJayamohan Kallickal 47076733b39aSJayamohan Kallickal static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt, 47086733b39aSJayamohan Kallickal int *index, int *age) 47096733b39aSJayamohan Kallickal { 4710bfead3b2SJayamohan Kallickal *index = (int)itt; 47116733b39aSJayamohan Kallickal if (age) 47126733b39aSJayamohan Kallickal *age = conn->session->age; 47136733b39aSJayamohan Kallickal } 47146733b39aSJayamohan Kallickal 47156733b39aSJayamohan Kallickal /** 47166733b39aSJayamohan Kallickal * beiscsi_alloc_pdu - allocates pdu and related resources 47176733b39aSJayamohan Kallickal * @task: libiscsi task 47186733b39aSJayamohan Kallickal * @opcode: opcode of pdu for task 47196733b39aSJayamohan Kallickal * 47206733b39aSJayamohan Kallickal * This is called with the session lock held. It will allocate 47216733b39aSJayamohan Kallickal * the wrb and sgl if needed for the command. And it will prep 47226733b39aSJayamohan Kallickal * the pdu's itt. beiscsi_parse_pdu will later translate 47236733b39aSJayamohan Kallickal * the pdu itt to the libiscsi task itt. 47246733b39aSJayamohan Kallickal */ 47256733b39aSJayamohan Kallickal static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 47266733b39aSJayamohan Kallickal { 47276733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 47286733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 47296733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 47306733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 47316733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 47326733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 47336733b39aSJayamohan Kallickal itt_t itt; 4734a7909b39SJayamohan Kallickal uint16_t cri_index = 0; 47352afc95bfSJayamohan Kallickal struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess; 47362afc95bfSJayamohan Kallickal dma_addr_t paddr; 47376733b39aSJayamohan Kallickal 47382afc95bfSJayamohan Kallickal io_task->cmd_bhs = pci_pool_alloc(beiscsi_sess->bhs_pool, 4739bc7accecSMike Christie GFP_ATOMIC, &paddr); 47402afc95bfSJayamohan Kallickal if (!io_task->cmd_bhs) 47412afc95bfSJayamohan Kallickal return -ENOMEM; 47422afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address = paddr; 4743bfead3b2SJayamohan Kallickal io_task->libiscsi_itt = (itt_t)task->itt; 47446733b39aSJayamohan Kallickal io_task->conn = beiscsi_conn; 47456733b39aSJayamohan Kallickal 47466733b39aSJayamohan Kallickal task->hdr = (struct iscsi_hdr *)&io_task->cmd_bhs->iscsi_hdr; 47476733b39aSJayamohan Kallickal task->hdr_max = sizeof(struct be_cmd_bhs); 4748d2cecf0dSJayamohan Kallickal io_task->psgl_handle = NULL; 47493ec78271SJayamohan Kallickal io_task->pwrb_handle = NULL; 47506733b39aSJayamohan Kallickal 47516733b39aSJayamohan Kallickal if (task->sc) { 47526733b39aSJayamohan Kallickal spin_lock(&phba->io_sgl_lock); 47536733b39aSJayamohan Kallickal io_task->psgl_handle = alloc_io_sgl_handle(phba); 47546733b39aSJayamohan Kallickal spin_unlock(&phba->io_sgl_lock); 47558359c79bSJohn Soni Jose if (!io_task->psgl_handle) { 47568359c79bSJohn Soni Jose beiscsi_log(phba, KERN_ERR, 47578359c79bSJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 47588359c79bSJohn Soni Jose "BM_%d : Alloc of IO_SGL_ICD Failed" 47598359c79bSJohn Soni Jose "for the CID : %d\n", 47608359c79bSJohn Soni Jose beiscsi_conn->beiscsi_conn_cid); 47612afc95bfSJayamohan Kallickal goto free_hndls; 47628359c79bSJohn Soni Jose } 4763d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = alloc_wrb_handle(phba, 4764340c99e9SJohn Soni Jose beiscsi_conn->beiscsi_conn_cid, 4765340c99e9SJohn Soni Jose &io_task->pwrb_context); 47668359c79bSJohn Soni Jose if (!io_task->pwrb_handle) { 47678359c79bSJohn Soni Jose beiscsi_log(phba, KERN_ERR, 47688359c79bSJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 47698359c79bSJohn Soni Jose "BM_%d : Alloc of WRB_HANDLE Failed" 47708359c79bSJohn Soni Jose "for the CID : %d\n", 47718359c79bSJohn Soni Jose beiscsi_conn->beiscsi_conn_cid); 4772d2cecf0dSJayamohan Kallickal goto free_io_hndls; 47738359c79bSJohn Soni Jose } 47746733b39aSJayamohan Kallickal } else { 47756733b39aSJayamohan Kallickal io_task->scsi_cmnd = NULL; 4776d7aea67bSJayamohan Kallickal if ((opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) { 477743f388b0SJayamohan Kallickal beiscsi_conn->task = task; 47786733b39aSJayamohan Kallickal if (!beiscsi_conn->login_in_progress) { 47796733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 47806733b39aSJayamohan Kallickal io_task->psgl_handle = (struct sgl_handle *) 47816733b39aSJayamohan Kallickal alloc_mgmt_sgl_handle(phba); 47826733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 47838359c79bSJohn Soni Jose if (!io_task->psgl_handle) { 47848359c79bSJohn Soni Jose beiscsi_log(phba, KERN_ERR, 47858359c79bSJohn Soni Jose BEISCSI_LOG_IO | 47868359c79bSJohn Soni Jose BEISCSI_LOG_CONFIG, 47878359c79bSJohn Soni Jose "BM_%d : Alloc of MGMT_SGL_ICD Failed" 47888359c79bSJohn Soni Jose "for the CID : %d\n", 47898359c79bSJohn Soni Jose beiscsi_conn-> 47908359c79bSJohn Soni Jose beiscsi_conn_cid); 47912afc95bfSJayamohan Kallickal goto free_hndls; 47928359c79bSJohn Soni Jose } 47932afc95bfSJayamohan Kallickal 47946733b39aSJayamohan Kallickal beiscsi_conn->login_in_progress = 1; 47956733b39aSJayamohan Kallickal beiscsi_conn->plogin_sgl_handle = 47966733b39aSJayamohan Kallickal io_task->psgl_handle; 4797d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = 4798d2cecf0dSJayamohan Kallickal alloc_wrb_handle(phba, 4799340c99e9SJohn Soni Jose beiscsi_conn->beiscsi_conn_cid, 4800340c99e9SJohn Soni Jose &io_task->pwrb_context); 48018359c79bSJohn Soni Jose if (!io_task->pwrb_handle) { 48028359c79bSJohn Soni Jose beiscsi_log(phba, KERN_ERR, 48038359c79bSJohn Soni Jose BEISCSI_LOG_IO | 48048359c79bSJohn Soni Jose BEISCSI_LOG_CONFIG, 48058359c79bSJohn Soni Jose "BM_%d : Alloc of WRB_HANDLE Failed" 48068359c79bSJohn Soni Jose "for the CID : %d\n", 48078359c79bSJohn Soni Jose beiscsi_conn-> 48088359c79bSJohn Soni Jose beiscsi_conn_cid); 48098359c79bSJohn Soni Jose goto free_mgmt_hndls; 48108359c79bSJohn Soni Jose } 4811d2cecf0dSJayamohan Kallickal beiscsi_conn->plogin_wrb_handle = 4812d2cecf0dSJayamohan Kallickal io_task->pwrb_handle; 4813d2cecf0dSJayamohan Kallickal 48146733b39aSJayamohan Kallickal } else { 48156733b39aSJayamohan Kallickal io_task->psgl_handle = 48166733b39aSJayamohan Kallickal beiscsi_conn->plogin_sgl_handle; 4817d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = 4818d2cecf0dSJayamohan Kallickal beiscsi_conn->plogin_wrb_handle; 48196733b39aSJayamohan Kallickal } 48206733b39aSJayamohan Kallickal } else { 48216733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 48226733b39aSJayamohan Kallickal io_task->psgl_handle = alloc_mgmt_sgl_handle(phba); 48236733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 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 } 4834d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = 4835d2cecf0dSJayamohan Kallickal alloc_wrb_handle(phba, 4836340c99e9SJohn Soni Jose beiscsi_conn->beiscsi_conn_cid, 4837340c99e9SJohn Soni Jose &io_task->pwrb_context); 48388359c79bSJohn Soni Jose if (!io_task->pwrb_handle) { 48398359c79bSJohn Soni Jose beiscsi_log(phba, KERN_ERR, 48408359c79bSJohn Soni Jose BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG, 48418359c79bSJohn Soni Jose "BM_%d : Alloc of WRB_HANDLE Failed" 48428359c79bSJohn Soni Jose "for the CID : %d\n", 48438359c79bSJohn Soni Jose beiscsi_conn->beiscsi_conn_cid); 4844d2cecf0dSJayamohan Kallickal goto free_mgmt_hndls; 48458359c79bSJohn Soni Jose } 4846d2cecf0dSJayamohan Kallickal 48476733b39aSJayamohan Kallickal } 48486733b39aSJayamohan Kallickal } 4849bfead3b2SJayamohan Kallickal itt = (itt_t) cpu_to_be32(((unsigned int)io_task->pwrb_handle-> 4850bfead3b2SJayamohan Kallickal wrb_index << 16) | (unsigned int) 4851bfead3b2SJayamohan Kallickal (io_task->psgl_handle->sgl_index)); 4852bfead3b2SJayamohan Kallickal io_task->pwrb_handle->pio_handle = task; 4853bfead3b2SJayamohan Kallickal 48546733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.itt = itt; 48556733b39aSJayamohan Kallickal return 0; 48562afc95bfSJayamohan Kallickal 4857d2cecf0dSJayamohan Kallickal free_io_hndls: 4858d2cecf0dSJayamohan Kallickal spin_lock(&phba->io_sgl_lock); 4859d2cecf0dSJayamohan Kallickal free_io_sgl_handle(phba, io_task->psgl_handle); 4860d2cecf0dSJayamohan Kallickal spin_unlock(&phba->io_sgl_lock); 4861d2cecf0dSJayamohan Kallickal goto free_hndls; 4862d2cecf0dSJayamohan Kallickal free_mgmt_hndls: 4863d2cecf0dSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 4864d2cecf0dSJayamohan Kallickal free_mgmt_sgl_handle(phba, io_task->psgl_handle); 4865a7909b39SJayamohan Kallickal io_task->psgl_handle = NULL; 4866d2cecf0dSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 48672afc95bfSJayamohan Kallickal free_hndls: 48682afc95bfSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 4869a7909b39SJayamohan Kallickal cri_index = BE_GET_CRI_FROM_CID( 4870a7909b39SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid); 4871a7909b39SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cri_index]; 4872d2cecf0dSJayamohan Kallickal if (io_task->pwrb_handle) 48732afc95bfSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle); 48742afc95bfSJayamohan Kallickal io_task->pwrb_handle = NULL; 48752afc95bfSJayamohan Kallickal pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs, 48762afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address); 48771282ab76SMike Christie io_task->cmd_bhs = NULL; 48782afc95bfSJayamohan Kallickal return -ENOMEM; 48796733b39aSJayamohan Kallickal } 488009a1093aSJohn Soni Jose int beiscsi_iotask_v2(struct iscsi_task *task, struct scatterlist *sg, 488109a1093aSJohn Soni Jose unsigned int num_sg, unsigned int xferlen, 488209a1093aSJohn Soni Jose unsigned int writedir) 488309a1093aSJohn Soni Jose { 488409a1093aSJohn Soni Jose 488509a1093aSJohn Soni Jose struct beiscsi_io_task *io_task = task->dd_data; 488609a1093aSJohn Soni Jose struct iscsi_conn *conn = task->conn; 488709a1093aSJohn Soni Jose struct beiscsi_conn *beiscsi_conn = conn->dd_data; 488809a1093aSJohn Soni Jose struct beiscsi_hba *phba = beiscsi_conn->phba; 488909a1093aSJohn Soni Jose struct iscsi_wrb *pwrb = NULL; 489009a1093aSJohn Soni Jose unsigned int doorbell = 0; 489109a1093aSJohn Soni Jose 489209a1093aSJohn Soni Jose pwrb = io_task->pwrb_handle->pwrb; 489309a1093aSJohn Soni Jose 489409a1093aSJohn Soni Jose io_task->cmd_bhs->iscsi_hdr.exp_statsn = 0; 489509a1093aSJohn Soni Jose io_task->bhs_len = sizeof(struct be_cmd_bhs); 489609a1093aSJohn Soni Jose 489709a1093aSJohn Soni Jose if (writedir) { 489809a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, type, pwrb, 489909a1093aSJohn Soni Jose INI_WR_CMD); 490009a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, dsp, pwrb, 1); 490109a1093aSJohn Soni Jose } else { 490209a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, type, pwrb, 490309a1093aSJohn Soni Jose INI_RD_CMD); 490409a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, dsp, pwrb, 0); 490509a1093aSJohn Soni Jose } 490609a1093aSJohn Soni Jose 490709a1093aSJohn Soni Jose io_task->wrb_type = AMAP_GET_BITS(struct amap_iscsi_wrb_v2, 490809a1093aSJohn Soni Jose type, pwrb); 490909a1093aSJohn Soni Jose 491009a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, lun, pwrb, 491109a1093aSJohn Soni Jose cpu_to_be16(*(unsigned short *) 491209a1093aSJohn Soni Jose &io_task->cmd_bhs->iscsi_hdr.lun)); 491309a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, r2t_exp_dtl, pwrb, xferlen); 491409a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, wrb_idx, pwrb, 491509a1093aSJohn Soni Jose io_task->pwrb_handle->wrb_index); 491609a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, cmdsn_itt, pwrb, 491709a1093aSJohn Soni Jose be32_to_cpu(task->cmdsn)); 491809a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sgl_idx, pwrb, 491909a1093aSJohn Soni Jose io_task->psgl_handle->sgl_index); 492009a1093aSJohn Soni Jose 492109a1093aSJohn Soni Jose hwi_write_sgl_v2(pwrb, sg, num_sg, io_task); 492209a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb, pwrb, 4923340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 4924340c99e9SJohn Soni Jose if (io_task->pwrb_context->plast_wrb) 4925340c99e9SJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb, 4926340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb, 4927340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 4928340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb = pwrb; 492909a1093aSJohn Soni Jose 493009a1093aSJohn Soni Jose be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb)); 493109a1093aSJohn Soni Jose 493209a1093aSJohn Soni Jose doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 493309a1093aSJohn Soni Jose doorbell |= (io_task->pwrb_handle->wrb_index & 493409a1093aSJohn Soni Jose DB_DEF_PDU_WRB_INDEX_MASK) << 493509a1093aSJohn Soni Jose DB_DEF_PDU_WRB_INDEX_SHIFT; 493609a1093aSJohn Soni Jose doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 49371e4be6ffSJayamohan Kallickal iowrite32(doorbell, phba->db_va + 49381e4be6ffSJayamohan Kallickal beiscsi_conn->doorbell_offset); 493909a1093aSJohn Soni Jose return 0; 494009a1093aSJohn Soni Jose } 49416733b39aSJayamohan Kallickal 49426733b39aSJayamohan Kallickal static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg, 49436733b39aSJayamohan Kallickal unsigned int num_sg, unsigned int xferlen, 49446733b39aSJayamohan Kallickal unsigned int writedir) 49456733b39aSJayamohan Kallickal { 49466733b39aSJayamohan Kallickal 49476733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 49486733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 49496733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 49506733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 49516733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 49526733b39aSJayamohan Kallickal unsigned int doorbell = 0; 49536733b39aSJayamohan Kallickal 49546733b39aSJayamohan Kallickal pwrb = io_task->pwrb_handle->pwrb; 49556733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.exp_statsn = 0; 49566733b39aSJayamohan Kallickal io_task->bhs_len = sizeof(struct be_cmd_bhs); 49576733b39aSJayamohan Kallickal 49586733b39aSJayamohan Kallickal if (writedir) { 4959bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 4960bfead3b2SJayamohan Kallickal INI_WR_CMD); 49616733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1); 49626733b39aSJayamohan Kallickal } else { 4963bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 4964bfead3b2SJayamohan Kallickal INI_RD_CMD); 49656733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 49666733b39aSJayamohan Kallickal } 49676733b39aSJayamohan Kallickal 496809a1093aSJohn Soni Jose io_task->wrb_type = AMAP_GET_BITS(struct amap_iscsi_wrb, 496909a1093aSJohn Soni Jose type, pwrb); 497009a1093aSJohn Soni Jose 49716733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, lun, pwrb, 4972dc63aac6SJayamohan Kallickal cpu_to_be16(*(unsigned short *) 4973dc63aac6SJayamohan Kallickal &io_task->cmd_bhs->iscsi_hdr.lun)); 49746733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, xferlen); 49756733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb, 49766733b39aSJayamohan Kallickal io_task->pwrb_handle->wrb_index); 49776733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 49786733b39aSJayamohan Kallickal be32_to_cpu(task->cmdsn)); 49796733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb, 49806733b39aSJayamohan Kallickal io_task->psgl_handle->sgl_index); 49816733b39aSJayamohan Kallickal 49826733b39aSJayamohan Kallickal hwi_write_sgl(pwrb, sg, num_sg, io_task); 49836733b39aSJayamohan Kallickal 49846733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb, 4985340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 4986340c99e9SJohn Soni Jose if (io_task->pwrb_context->plast_wrb) 4987340c99e9SJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, 4988340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb, 4989340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 4990340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb = pwrb; 4991340c99e9SJohn Soni Jose 49926733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb)); 49936733b39aSJayamohan Kallickal 49946733b39aSJayamohan Kallickal doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 49956733b39aSJayamohan Kallickal doorbell |= (io_task->pwrb_handle->wrb_index & 49966733b39aSJayamohan Kallickal DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; 49976733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 49986733b39aSJayamohan Kallickal 49991e4be6ffSJayamohan Kallickal iowrite32(doorbell, phba->db_va + 50001e4be6ffSJayamohan Kallickal beiscsi_conn->doorbell_offset); 50016733b39aSJayamohan Kallickal return 0; 50026733b39aSJayamohan Kallickal } 50036733b39aSJayamohan Kallickal 50046733b39aSJayamohan Kallickal static int beiscsi_mtask(struct iscsi_task *task) 50056733b39aSJayamohan Kallickal { 5006dafab8e0SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 50076733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 50086733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 50096733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 50106733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 50116733b39aSJayamohan Kallickal unsigned int doorbell = 0; 5012dafab8e0SJayamohan Kallickal unsigned int cid; 501309a1093aSJohn Soni Jose unsigned int pwrb_typeoffset = 0; 50146733b39aSJayamohan Kallickal 5015bfead3b2SJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 50166733b39aSJayamohan Kallickal pwrb = io_task->pwrb_handle->pwrb; 5017caf818f1SJayamohan Kallickal memset(pwrb, 0, sizeof(*pwrb)); 501809a1093aSJohn Soni Jose 50192c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) { 50206733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 50216733b39aSJayamohan Kallickal be32_to_cpu(task->cmdsn)); 50226733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb, 50236733b39aSJayamohan Kallickal io_task->pwrb_handle->wrb_index); 50246733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb, 50256733b39aSJayamohan Kallickal io_task->psgl_handle->sgl_index); 502609a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, 502709a1093aSJohn Soni Jose task->data_count); 502809a1093aSJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb, 5029340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 5030340c99e9SJohn Soni Jose if (io_task->pwrb_context->plast_wrb) 5031340c99e9SJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, 5032340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb, 5033340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 5034340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb = pwrb; 5035340c99e9SJohn Soni Jose 503609a1093aSJohn Soni Jose pwrb_typeoffset = BE_WRB_TYPE_OFFSET; 50372c9dfd36SJayamohan Kallickal } else { 50382c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, cmdsn_itt, pwrb, 50392c9dfd36SJayamohan Kallickal be32_to_cpu(task->cmdsn)); 50402c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, wrb_idx, pwrb, 50412c9dfd36SJayamohan Kallickal io_task->pwrb_handle->wrb_index); 50422c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sgl_idx, pwrb, 50432c9dfd36SJayamohan Kallickal io_task->psgl_handle->sgl_index); 50442c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, r2t_exp_dtl, pwrb, 50452c9dfd36SJayamohan Kallickal task->data_count); 50462c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb, pwrb, 5047340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 5048340c99e9SJohn Soni Jose if (io_task->pwrb_context->plast_wrb) 5049340c99e9SJohn Soni Jose AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb, 5050340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb, 5051340c99e9SJohn Soni Jose io_task->pwrb_handle->wrb_index); 5052340c99e9SJohn Soni Jose io_task->pwrb_context->plast_wrb = pwrb; 5053340c99e9SJohn Soni Jose 50542c9dfd36SJayamohan Kallickal pwrb_typeoffset = SKH_WRB_TYPE_OFFSET; 505509a1093aSJohn Soni Jose } 505609a1093aSJohn Soni Jose 5057dafab8e0SJayamohan Kallickal 50586733b39aSJayamohan Kallickal switch (task->hdr->opcode & ISCSI_OPCODE_MASK) { 50596733b39aSJayamohan Kallickal case ISCSI_OP_LOGIN: 50606733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 1); 506109a1093aSJohn Soni Jose ADAPTER_SET_WRB_TYPE(pwrb, TGT_DM_CMD, pwrb_typeoffset); 50626733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 50636733b39aSJayamohan Kallickal break; 50646733b39aSJayamohan Kallickal case ISCSI_OP_NOOP_OUT: 50651390b01bSJayamohan Kallickal if (task->hdr->ttt != ISCSI_RESERVED_TAG) { 506609a1093aSJohn Soni Jose ADAPTER_SET_WRB_TYPE(pwrb, TGT_DM_CMD, pwrb_typeoffset); 50672c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) 50682c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, 506909a1093aSJohn Soni Jose dmsg, pwrb, 1); 507009a1093aSJohn Soni Jose else 50712c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 507209a1093aSJohn Soni Jose dmsg, pwrb, 1); 50731390b01bSJayamohan Kallickal } else { 507409a1093aSJohn Soni Jose ADAPTER_SET_WRB_TYPE(pwrb, INI_RD_CMD, pwrb_typeoffset); 50752c9dfd36SJayamohan Kallickal if (is_chip_be2_be3r(phba)) 50762c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, 507709a1093aSJohn Soni Jose dmsg, pwrb, 0); 507809a1093aSJohn Soni Jose else 50792c9dfd36SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb_v2, 508009a1093aSJohn Soni Jose dmsg, pwrb, 0); 50811390b01bSJayamohan Kallickal } 50826733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 50836733b39aSJayamohan Kallickal break; 50846733b39aSJayamohan Kallickal case ISCSI_OP_TEXT: 508509a1093aSJohn Soni Jose ADAPTER_SET_WRB_TYPE(pwrb, TGT_DM_CMD, pwrb_typeoffset); 50866733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 50876733b39aSJayamohan Kallickal break; 50886733b39aSJayamohan Kallickal case ISCSI_OP_SCSI_TMFUNC: 508909a1093aSJohn Soni Jose ADAPTER_SET_WRB_TYPE(pwrb, INI_TMF_CMD, pwrb_typeoffset); 50906733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 50916733b39aSJayamohan Kallickal break; 50926733b39aSJayamohan Kallickal case ISCSI_OP_LOGOUT: 509309a1093aSJohn Soni Jose ADAPTER_SET_WRB_TYPE(pwrb, HWH_TYPE_LOGOUT, pwrb_typeoffset); 50946733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 50956733b39aSJayamohan Kallickal break; 50966733b39aSJayamohan Kallickal 50976733b39aSJayamohan Kallickal default: 509899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG, 509999bc5d55SJohn Soni Jose "BM_%d : opcode =%d Not supported\n", 51006733b39aSJayamohan Kallickal task->hdr->opcode & ISCSI_OPCODE_MASK); 510199bc5d55SJohn Soni Jose 51026733b39aSJayamohan Kallickal return -EINVAL; 51036733b39aSJayamohan Kallickal } 51046733b39aSJayamohan Kallickal 510509a1093aSJohn Soni Jose /* Set the task type */ 51062c9dfd36SJayamohan Kallickal io_task->wrb_type = (is_chip_be2_be3r(phba)) ? 51072c9dfd36SJayamohan Kallickal AMAP_GET_BITS(struct amap_iscsi_wrb, type, pwrb) : 51082c9dfd36SJayamohan Kallickal AMAP_GET_BITS(struct amap_iscsi_wrb_v2, type, pwrb); 51096733b39aSJayamohan Kallickal 5110bfead3b2SJayamohan Kallickal doorbell |= cid & DB_WRB_POST_CID_MASK; 51116733b39aSJayamohan Kallickal doorbell |= (io_task->pwrb_handle->wrb_index & 51126733b39aSJayamohan Kallickal DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; 51136733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 51141e4be6ffSJayamohan Kallickal iowrite32(doorbell, phba->db_va + 51151e4be6ffSJayamohan Kallickal beiscsi_conn->doorbell_offset); 51166733b39aSJayamohan Kallickal return 0; 51176733b39aSJayamohan Kallickal } 51186733b39aSJayamohan Kallickal 51196733b39aSJayamohan Kallickal static int beiscsi_task_xmit(struct iscsi_task *task) 51206733b39aSJayamohan Kallickal { 51216733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 51226733b39aSJayamohan Kallickal struct scsi_cmnd *sc = task->sc; 512309a1093aSJohn Soni Jose struct beiscsi_hba *phba = NULL; 51246733b39aSJayamohan Kallickal struct scatterlist *sg; 51256733b39aSJayamohan Kallickal int num_sg; 51266733b39aSJayamohan Kallickal unsigned int writedir = 0, xferlen = 0; 51276733b39aSJayamohan Kallickal 512809a1093aSJohn Soni Jose phba = ((struct beiscsi_conn *)task->conn->dd_data)->phba; 512909a1093aSJohn Soni Jose 51306733b39aSJayamohan Kallickal if (!sc) 51316733b39aSJayamohan Kallickal return beiscsi_mtask(task); 51326733b39aSJayamohan Kallickal 51336733b39aSJayamohan Kallickal io_task->scsi_cmnd = sc; 51346733b39aSJayamohan Kallickal num_sg = scsi_dma_map(sc); 51356733b39aSJayamohan Kallickal if (num_sg < 0) { 513699bc5d55SJohn Soni Jose struct iscsi_conn *conn = task->conn; 513799bc5d55SJohn Soni Jose struct beiscsi_hba *phba = NULL; 513899bc5d55SJohn Soni Jose 513999bc5d55SJohn Soni Jose phba = ((struct beiscsi_conn *)conn->dd_data)->phba; 5140afb96058SJayamohan Kallickal beiscsi_log(phba, KERN_ERR, 5141afb96058SJayamohan Kallickal BEISCSI_LOG_IO | BEISCSI_LOG_ISCSI, 5142afb96058SJayamohan Kallickal "BM_%d : scsi_dma_map Failed " 5143afb96058SJayamohan Kallickal "Driver_ITT : 0x%x ITT : 0x%x Xferlen : 0x%x\n", 5144afb96058SJayamohan Kallickal be32_to_cpu(io_task->cmd_bhs->iscsi_hdr.itt), 5145afb96058SJayamohan Kallickal io_task->libiscsi_itt, scsi_bufflen(sc)); 514699bc5d55SJohn Soni Jose 51476733b39aSJayamohan Kallickal return num_sg; 51486733b39aSJayamohan Kallickal } 51496733b39aSJayamohan Kallickal xferlen = scsi_bufflen(sc); 51506733b39aSJayamohan Kallickal sg = scsi_sglist(sc); 515199bc5d55SJohn Soni Jose if (sc->sc_data_direction == DMA_TO_DEVICE) 51526733b39aSJayamohan Kallickal writedir = 1; 515399bc5d55SJohn Soni Jose else 51546733b39aSJayamohan Kallickal writedir = 0; 515599bc5d55SJohn Soni Jose 515609a1093aSJohn Soni Jose return phba->iotask_fn(task, sg, num_sg, xferlen, writedir); 51576733b39aSJayamohan Kallickal } 51586733b39aSJayamohan Kallickal 5159ffce3e2eSJayamohan Kallickal /** 5160ffce3e2eSJayamohan Kallickal * beiscsi_bsg_request - handle bsg request from ISCSI transport 5161ffce3e2eSJayamohan Kallickal * @job: job to handle 5162ffce3e2eSJayamohan Kallickal */ 5163ffce3e2eSJayamohan Kallickal static int beiscsi_bsg_request(struct bsg_job *job) 5164ffce3e2eSJayamohan Kallickal { 5165ffce3e2eSJayamohan Kallickal struct Scsi_Host *shost; 5166ffce3e2eSJayamohan Kallickal struct beiscsi_hba *phba; 5167ffce3e2eSJayamohan Kallickal struct iscsi_bsg_request *bsg_req = job->request; 5168ffce3e2eSJayamohan Kallickal int rc = -EINVAL; 5169ffce3e2eSJayamohan Kallickal unsigned int tag; 5170ffce3e2eSJayamohan Kallickal struct be_dma_mem nonemb_cmd; 5171ffce3e2eSJayamohan Kallickal struct be_cmd_resp_hdr *resp; 5172ffce3e2eSJayamohan Kallickal struct iscsi_bsg_reply *bsg_reply = job->reply; 5173ffce3e2eSJayamohan Kallickal unsigned short status, extd_status; 5174ffce3e2eSJayamohan Kallickal 5175ffce3e2eSJayamohan Kallickal shost = iscsi_job_to_shost(job); 5176ffce3e2eSJayamohan Kallickal phba = iscsi_host_priv(shost); 5177ffce3e2eSJayamohan Kallickal 5178ffce3e2eSJayamohan Kallickal switch (bsg_req->msgcode) { 5179ffce3e2eSJayamohan Kallickal case ISCSI_BSG_HST_VENDOR: 5180ffce3e2eSJayamohan Kallickal nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev, 5181ffce3e2eSJayamohan Kallickal job->request_payload.payload_len, 5182ffce3e2eSJayamohan Kallickal &nonemb_cmd.dma); 5183ffce3e2eSJayamohan Kallickal if (nonemb_cmd.va == NULL) { 518499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG, 518599bc5d55SJohn Soni Jose "BM_%d : Failed to allocate memory for " 5186ffce3e2eSJayamohan Kallickal "beiscsi_bsg_request\n"); 51878359c79bSJohn Soni Jose return -ENOMEM; 5188ffce3e2eSJayamohan Kallickal } 5189ffce3e2eSJayamohan Kallickal tag = mgmt_vendor_specific_fw_cmd(&phba->ctrl, phba, job, 5190ffce3e2eSJayamohan Kallickal &nonemb_cmd); 5191ffce3e2eSJayamohan Kallickal if (!tag) { 519299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG, 51938359c79bSJohn Soni Jose "BM_%d : MBX Tag Allocation Failed\n"); 519499bc5d55SJohn Soni Jose 5195ffce3e2eSJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 5196ffce3e2eSJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 5197ffce3e2eSJayamohan Kallickal return -EAGAIN; 5198e175defeSJohn Soni Jose } 5199e175defeSJohn Soni Jose 5200e175defeSJohn Soni Jose rc = wait_event_interruptible_timeout( 5201e175defeSJohn Soni Jose phba->ctrl.mcc_wait[tag], 5202e175defeSJohn Soni Jose phba->ctrl.mcc_numtag[tag], 5203e175defeSJohn Soni Jose msecs_to_jiffies( 5204e175defeSJohn Soni Jose BEISCSI_HOST_MBX_TIMEOUT)); 5205ffce3e2eSJayamohan Kallickal extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8; 5206ffce3e2eSJayamohan Kallickal status = phba->ctrl.mcc_numtag[tag] & 0x000000FF; 5207ffce3e2eSJayamohan Kallickal free_mcc_tag(&phba->ctrl, tag); 5208ffce3e2eSJayamohan Kallickal resp = (struct be_cmd_resp_hdr *)nonemb_cmd.va; 5209ffce3e2eSJayamohan Kallickal sg_copy_from_buffer(job->reply_payload.sg_list, 5210ffce3e2eSJayamohan Kallickal job->reply_payload.sg_cnt, 5211ffce3e2eSJayamohan Kallickal nonemb_cmd.va, (resp->response_length 5212ffce3e2eSJayamohan Kallickal + sizeof(*resp))); 5213ffce3e2eSJayamohan Kallickal bsg_reply->reply_payload_rcv_len = resp->response_length; 5214ffce3e2eSJayamohan Kallickal bsg_reply->result = status; 5215ffce3e2eSJayamohan Kallickal bsg_job_done(job, bsg_reply->result, 5216ffce3e2eSJayamohan Kallickal bsg_reply->reply_payload_rcv_len); 5217ffce3e2eSJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 5218ffce3e2eSJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 5219ffce3e2eSJayamohan Kallickal if (status || extd_status) { 522099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG, 52218359c79bSJohn Soni Jose "BM_%d : MBX Cmd Failed" 5222ffce3e2eSJayamohan Kallickal " status = %d extd_status = %d\n", 5223ffce3e2eSJayamohan Kallickal status, extd_status); 522499bc5d55SJohn Soni Jose 5225ffce3e2eSJayamohan Kallickal return -EIO; 52268359c79bSJohn Soni Jose } else { 52278359c79bSJohn Soni Jose rc = 0; 5228ffce3e2eSJayamohan Kallickal } 5229ffce3e2eSJayamohan Kallickal break; 5230ffce3e2eSJayamohan Kallickal 5231ffce3e2eSJayamohan Kallickal default: 523299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG, 523399bc5d55SJohn Soni Jose "BM_%d : Unsupported bsg command: 0x%x\n", 5234ffce3e2eSJayamohan Kallickal bsg_req->msgcode); 5235ffce3e2eSJayamohan Kallickal break; 5236ffce3e2eSJayamohan Kallickal } 5237ffce3e2eSJayamohan Kallickal 5238ffce3e2eSJayamohan Kallickal return rc; 5239ffce3e2eSJayamohan Kallickal } 5240ffce3e2eSJayamohan Kallickal 524199bc5d55SJohn Soni Jose void beiscsi_hba_attrs_init(struct beiscsi_hba *phba) 524299bc5d55SJohn Soni Jose { 524399bc5d55SJohn Soni Jose /* Set the logging parameter */ 524499bc5d55SJohn Soni Jose beiscsi_log_enable_init(phba, beiscsi_log_enable); 524599bc5d55SJohn Soni Jose } 524699bc5d55SJohn Soni Jose 52474d4d1ef8SJohn Soni Jose /* 52484d4d1ef8SJohn Soni Jose * beiscsi_quiesce()- Cleanup Driver resources 52494d4d1ef8SJohn Soni Jose * @phba: Instance Priv structure 52503567f36aSJayamohan Kallickal * @unload_state:i Clean or EEH unload state 52514d4d1ef8SJohn Soni Jose * 52524d4d1ef8SJohn Soni Jose * Free the OS and HW resources held by the driver 52534d4d1ef8SJohn Soni Jose **/ 52543567f36aSJayamohan Kallickal static void beiscsi_quiesce(struct beiscsi_hba *phba, 52553567f36aSJayamohan Kallickal uint32_t unload_state) 52566733b39aSJayamohan Kallickal { 5257bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 5258bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 5259bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 5260bfead3b2SJayamohan Kallickal unsigned int i, msix_vec; 52616733b39aSJayamohan Kallickal 5262bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 5263bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 52646733b39aSJayamohan Kallickal hwi_disable_intr(phba); 5265bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 5266bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) { 5267bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 52683567f36aSJayamohan Kallickal synchronize_irq(msix_vec); 5269bfead3b2SJayamohan Kallickal free_irq(msix_vec, &phwi_context->be_eq[i]); 52708fcfb210SJayamohan Kallickal kfree(phba->msi_name[i]); 5271bfead3b2SJayamohan Kallickal } 5272bfead3b2SJayamohan Kallickal } else 52733567f36aSJayamohan Kallickal if (phba->pcidev->irq) { 52743567f36aSJayamohan Kallickal synchronize_irq(phba->pcidev->irq); 52756733b39aSJayamohan Kallickal free_irq(phba->pcidev->irq, phba); 52763567f36aSJayamohan Kallickal } 5277bfead3b2SJayamohan Kallickal pci_disable_msix(phba->pcidev); 527853281edbSJohn Soni Jose cancel_delayed_work_sync(&phba->beiscsi_hw_check_task); 52793567f36aSJayamohan Kallickal 5280bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 5281bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 5282511cbce2SChristoph Hellwig irq_poll_disable(&pbe_eq->iopoll); 5283bfead3b2SJayamohan Kallickal } 52846733b39aSJayamohan Kallickal 52853567f36aSJayamohan Kallickal if (unload_state == BEISCSI_CLEAN_UNLOAD) { 52863567f36aSJayamohan Kallickal destroy_workqueue(phba->wq); 52876733b39aSJayamohan Kallickal beiscsi_clean_port(phba); 52886733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 5289e9b91193SJayamohan Kallickal 52906733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 52916733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 52926733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.size, 52936733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.va, 52946733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.dma); 52953567f36aSJayamohan Kallickal } else { 52963567f36aSJayamohan Kallickal hwi_purge_eq(phba); 52973567f36aSJayamohan Kallickal hwi_cleanup(phba); 52983567f36aSJayamohan Kallickal } 52997a158003SJohn Soni Jose 530025602c97SJayamohan Kallickal } 530125602c97SJayamohan Kallickal 530225602c97SJayamohan Kallickal static void beiscsi_remove(struct pci_dev *pcidev) 530325602c97SJayamohan Kallickal { 530425602c97SJayamohan Kallickal struct beiscsi_hba *phba = NULL; 530525602c97SJayamohan Kallickal 530625602c97SJayamohan Kallickal phba = pci_get_drvdata(pcidev); 530725602c97SJayamohan Kallickal if (!phba) { 530825602c97SJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_remove called with no phba\n"); 530925602c97SJayamohan Kallickal return; 531025602c97SJayamohan Kallickal } 531125602c97SJayamohan Kallickal 53120e43895eSMike Christie beiscsi_destroy_def_ifaces(phba); 53130b1d3cbfSJayamohan Kallickal iscsi_boot_destroy_kset(phba->boot_kset); 53146733b39aSJayamohan Kallickal iscsi_host_remove(phba->shost); 5315cdaa4dedSJitendra Bhivare beiscsi_quiesce(phba, BEISCSI_CLEAN_UNLOAD); 53166733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 53176733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 53183567f36aSJayamohan Kallickal pci_disable_pcie_error_reporting(pcidev); 53193567f36aSJayamohan Kallickal pci_set_drvdata(pcidev, NULL); 5320e307f3acSJohn Soni Jose pci_release_regions(pcidev); 53218dce69ffSJayamohan Kallickal pci_disable_device(pcidev); 53226733b39aSJayamohan Kallickal } 53236733b39aSJayamohan Kallickal 5324bfead3b2SJayamohan Kallickal static void beiscsi_msix_enable(struct beiscsi_hba *phba) 5325bfead3b2SJayamohan Kallickal { 5326bfead3b2SJayamohan Kallickal int i, status; 5327bfead3b2SJayamohan Kallickal 5328bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) 5329bfead3b2SJayamohan Kallickal phba->msix_entries[i].entry = i; 5330bfead3b2SJayamohan Kallickal 5331e149fc13SAlexander Gordeev status = pci_enable_msix_range(phba->pcidev, phba->msix_entries, 5332e149fc13SAlexander Gordeev phba->num_cpus + 1, phba->num_cpus + 1); 5333e149fc13SAlexander Gordeev if (status > 0) 5334bfead3b2SJayamohan Kallickal phba->msix_enabled = true; 5335bfead3b2SJayamohan Kallickal 5336bfead3b2SJayamohan Kallickal return; 5337bfead3b2SJayamohan Kallickal } 5338bfead3b2SJayamohan Kallickal 533973af08e1SJayamohan Kallickal static void be_eqd_update(struct beiscsi_hba *phba) 534073af08e1SJayamohan Kallickal { 534173af08e1SJayamohan Kallickal struct be_set_eqd set_eqd[MAX_CPUS]; 534273af08e1SJayamohan Kallickal struct be_aic_obj *aic; 534373af08e1SJayamohan Kallickal struct be_eq_obj *pbe_eq; 534473af08e1SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 534573af08e1SJayamohan Kallickal struct hwi_context_memory *phwi_context; 534673af08e1SJayamohan Kallickal int eqd, i, num = 0; 534773af08e1SJayamohan Kallickal ulong now; 534873af08e1SJayamohan Kallickal u32 pps, delta; 534973af08e1SJayamohan Kallickal unsigned int tag; 535073af08e1SJayamohan Kallickal 535173af08e1SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 535273af08e1SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 535373af08e1SJayamohan Kallickal 535473af08e1SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) { 535573af08e1SJayamohan Kallickal aic = &phba->aic_obj[i]; 535673af08e1SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 535773af08e1SJayamohan Kallickal now = jiffies; 535873af08e1SJayamohan Kallickal if (!aic->jiffs || time_before(now, aic->jiffs) || 535973af08e1SJayamohan Kallickal pbe_eq->cq_count < aic->eq_prev) { 536073af08e1SJayamohan Kallickal aic->jiffs = now; 536173af08e1SJayamohan Kallickal aic->eq_prev = pbe_eq->cq_count; 536273af08e1SJayamohan Kallickal continue; 536373af08e1SJayamohan Kallickal } 536473af08e1SJayamohan Kallickal delta = jiffies_to_msecs(now - aic->jiffs); 536573af08e1SJayamohan Kallickal pps = (((u32)(pbe_eq->cq_count - aic->eq_prev) * 1000) / delta); 536673af08e1SJayamohan Kallickal eqd = (pps / 1500) << 2; 536773af08e1SJayamohan Kallickal 536873af08e1SJayamohan Kallickal if (eqd < 8) 536973af08e1SJayamohan Kallickal eqd = 0; 537073af08e1SJayamohan Kallickal eqd = min_t(u32, eqd, phwi_context->max_eqd); 537173af08e1SJayamohan Kallickal eqd = max_t(u32, eqd, phwi_context->min_eqd); 537273af08e1SJayamohan Kallickal 537373af08e1SJayamohan Kallickal aic->jiffs = now; 537473af08e1SJayamohan Kallickal aic->eq_prev = pbe_eq->cq_count; 537573af08e1SJayamohan Kallickal 537673af08e1SJayamohan Kallickal if (eqd != aic->prev_eqd) { 537773af08e1SJayamohan Kallickal set_eqd[num].delay_multiplier = (eqd * 65)/100; 537873af08e1SJayamohan Kallickal set_eqd[num].eq_id = pbe_eq->q.id; 537973af08e1SJayamohan Kallickal aic->prev_eqd = eqd; 538073af08e1SJayamohan Kallickal num++; 538173af08e1SJayamohan Kallickal } 538273af08e1SJayamohan Kallickal } 538373af08e1SJayamohan Kallickal if (num) { 538473af08e1SJayamohan Kallickal tag = be_cmd_modify_eq_delay(phba, set_eqd, num); 538573af08e1SJayamohan Kallickal if (tag) 538673af08e1SJayamohan Kallickal beiscsi_mccq_compl(phba, tag, NULL, NULL); 538773af08e1SJayamohan Kallickal } 538873af08e1SJayamohan Kallickal } 538973af08e1SJayamohan Kallickal 5390a3d313eaSJayamohan Kallickal static void be_check_boot_session(struct beiscsi_hba *phba) 5391a3d313eaSJayamohan Kallickal { 5392a3d313eaSJayamohan Kallickal if (beiscsi_setup_boot_info(phba)) 5393a3d313eaSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 5394a3d313eaSJayamohan Kallickal "BM_%d : Could not set up " 5395a3d313eaSJayamohan Kallickal "iSCSI boot info on async event.\n"); 5396a3d313eaSJayamohan Kallickal } 5397a3d313eaSJayamohan Kallickal 53987a158003SJohn Soni Jose /* 53997a158003SJohn Soni Jose * beiscsi_hw_health_check()- Check adapter health 54007a158003SJohn Soni Jose * @work: work item to check HW health 54017a158003SJohn Soni Jose * 54027a158003SJohn Soni Jose * Check if adapter in an unrecoverable state or not. 54037a158003SJohn Soni Jose **/ 54047a158003SJohn Soni Jose static void 54057a158003SJohn Soni Jose beiscsi_hw_health_check(struct work_struct *work) 54067a158003SJohn Soni Jose { 54077a158003SJohn Soni Jose struct beiscsi_hba *phba = 54087a158003SJohn Soni Jose container_of(work, struct beiscsi_hba, 54097a158003SJohn Soni Jose beiscsi_hw_check_task.work); 54107a158003SJohn Soni Jose 541173af08e1SJayamohan Kallickal be_eqd_update(phba); 541273af08e1SJayamohan Kallickal 5413a3d313eaSJayamohan Kallickal if (phba->state & BE_ADAPTER_CHECK_BOOT) { 54143efde862SJohn Soni Jose if ((phba->get_boot > 0) && (!phba->boot_kset)) { 54153efde862SJohn Soni Jose phba->get_boot--; 54163efde862SJohn Soni Jose if (!(phba->get_boot % BE_GET_BOOT_TO)) 5417a3d313eaSJayamohan Kallickal be_check_boot_session(phba); 54183efde862SJohn Soni Jose } else { 54193efde862SJohn Soni Jose phba->state &= ~BE_ADAPTER_CHECK_BOOT; 54203efde862SJohn Soni Jose phba->get_boot = 0; 54213efde862SJohn Soni Jose } 5422a3d313eaSJayamohan Kallickal } 5423a3d313eaSJayamohan Kallickal 54247a158003SJohn Soni Jose beiscsi_ue_detect(phba); 54257a158003SJohn Soni Jose 54267a158003SJohn Soni Jose schedule_delayed_work(&phba->beiscsi_hw_check_task, 54277a158003SJohn Soni Jose msecs_to_jiffies(1000)); 54287a158003SJohn Soni Jose } 54297a158003SJohn Soni Jose 54303567f36aSJayamohan Kallickal 54313567f36aSJayamohan Kallickal static pci_ers_result_t beiscsi_eeh_err_detected(struct pci_dev *pdev, 54323567f36aSJayamohan Kallickal pci_channel_state_t state) 54333567f36aSJayamohan Kallickal { 54343567f36aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 54353567f36aSJayamohan Kallickal 54363567f36aSJayamohan Kallickal phba = (struct beiscsi_hba *)pci_get_drvdata(pdev); 54373567f36aSJayamohan Kallickal phba->state |= BE_ADAPTER_PCI_ERR; 54383567f36aSJayamohan Kallickal 54393567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 54403567f36aSJayamohan Kallickal "BM_%d : EEH error detected\n"); 54413567f36aSJayamohan Kallickal 54423567f36aSJayamohan Kallickal beiscsi_quiesce(phba, BEISCSI_EEH_UNLOAD); 54433567f36aSJayamohan Kallickal 54443567f36aSJayamohan Kallickal if (state == pci_channel_io_perm_failure) { 54453567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 54463567f36aSJayamohan Kallickal "BM_%d : EEH : State PERM Failure"); 54473567f36aSJayamohan Kallickal return PCI_ERS_RESULT_DISCONNECT; 54483567f36aSJayamohan Kallickal } 54493567f36aSJayamohan Kallickal 54503567f36aSJayamohan Kallickal pci_disable_device(pdev); 54513567f36aSJayamohan Kallickal 54523567f36aSJayamohan Kallickal /* The error could cause the FW to trigger a flash debug dump. 54533567f36aSJayamohan Kallickal * Resetting the card while flash dump is in progress 54543567f36aSJayamohan Kallickal * can cause it not to recover; wait for it to finish. 54553567f36aSJayamohan Kallickal * Wait only for first function as it is needed only once per 54563567f36aSJayamohan Kallickal * adapter. 54573567f36aSJayamohan Kallickal **/ 54583567f36aSJayamohan Kallickal if (pdev->devfn == 0) 54593567f36aSJayamohan Kallickal ssleep(30); 54603567f36aSJayamohan Kallickal 54613567f36aSJayamohan Kallickal return PCI_ERS_RESULT_NEED_RESET; 54623567f36aSJayamohan Kallickal } 54633567f36aSJayamohan Kallickal 54643567f36aSJayamohan Kallickal static pci_ers_result_t beiscsi_eeh_reset(struct pci_dev *pdev) 54653567f36aSJayamohan Kallickal { 54663567f36aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 54673567f36aSJayamohan Kallickal int status = 0; 54683567f36aSJayamohan Kallickal 54693567f36aSJayamohan Kallickal phba = (struct beiscsi_hba *)pci_get_drvdata(pdev); 54703567f36aSJayamohan Kallickal 54713567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 54723567f36aSJayamohan Kallickal "BM_%d : EEH Reset\n"); 54733567f36aSJayamohan Kallickal 54743567f36aSJayamohan Kallickal status = pci_enable_device(pdev); 54753567f36aSJayamohan Kallickal if (status) 54763567f36aSJayamohan Kallickal return PCI_ERS_RESULT_DISCONNECT; 54773567f36aSJayamohan Kallickal 54783567f36aSJayamohan Kallickal pci_set_master(pdev); 54793567f36aSJayamohan Kallickal pci_set_power_state(pdev, PCI_D0); 54803567f36aSJayamohan Kallickal pci_restore_state(pdev); 54813567f36aSJayamohan Kallickal 54823567f36aSJayamohan Kallickal /* Wait for the CHIP Reset to complete */ 54833567f36aSJayamohan Kallickal status = be_chk_reset_complete(phba); 54843567f36aSJayamohan Kallickal if (!status) { 54853567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT, 54863567f36aSJayamohan Kallickal "BM_%d : EEH Reset Completed\n"); 54873567f36aSJayamohan Kallickal } else { 54883567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT, 54893567f36aSJayamohan Kallickal "BM_%d : EEH Reset Completion Failure\n"); 54903567f36aSJayamohan Kallickal return PCI_ERS_RESULT_DISCONNECT; 54913567f36aSJayamohan Kallickal } 54923567f36aSJayamohan Kallickal 54933567f36aSJayamohan Kallickal pci_cleanup_aer_uncorrect_error_status(pdev); 54943567f36aSJayamohan Kallickal return PCI_ERS_RESULT_RECOVERED; 54953567f36aSJayamohan Kallickal } 54963567f36aSJayamohan Kallickal 54973567f36aSJayamohan Kallickal static void beiscsi_eeh_resume(struct pci_dev *pdev) 54983567f36aSJayamohan Kallickal { 54993567f36aSJayamohan Kallickal int ret = 0, i; 55003567f36aSJayamohan Kallickal struct be_eq_obj *pbe_eq; 55013567f36aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 55023567f36aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 55033567f36aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 55043567f36aSJayamohan Kallickal 55053567f36aSJayamohan Kallickal phba = (struct beiscsi_hba *)pci_get_drvdata(pdev); 55063567f36aSJayamohan Kallickal pci_save_state(pdev); 55073567f36aSJayamohan Kallickal 55083567f36aSJayamohan Kallickal if (enable_msix) 55093567f36aSJayamohan Kallickal find_num_cpus(phba); 55103567f36aSJayamohan Kallickal else 55113567f36aSJayamohan Kallickal phba->num_cpus = 1; 55123567f36aSJayamohan Kallickal 55133567f36aSJayamohan Kallickal if (enable_msix) { 55143567f36aSJayamohan Kallickal beiscsi_msix_enable(phba); 55153567f36aSJayamohan Kallickal if (!phba->msix_enabled) 55163567f36aSJayamohan Kallickal phba->num_cpus = 1; 55173567f36aSJayamohan Kallickal } 55183567f36aSJayamohan Kallickal 55193567f36aSJayamohan Kallickal ret = beiscsi_cmd_reset_function(phba); 55203567f36aSJayamohan Kallickal if (ret) { 55213567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 55223567f36aSJayamohan Kallickal "BM_%d : Reset Failed\n"); 55233567f36aSJayamohan Kallickal goto ret_err; 55243567f36aSJayamohan Kallickal } 55253567f36aSJayamohan Kallickal 55263567f36aSJayamohan Kallickal ret = be_chk_reset_complete(phba); 55273567f36aSJayamohan Kallickal if (ret) { 55283567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 55293567f36aSJayamohan Kallickal "BM_%d : Failed to get out of reset.\n"); 55303567f36aSJayamohan Kallickal goto ret_err; 55313567f36aSJayamohan Kallickal } 55323567f36aSJayamohan Kallickal 55333567f36aSJayamohan Kallickal beiscsi_get_params(phba); 55343567f36aSJayamohan Kallickal phba->shost->max_id = phba->params.cxns_per_ctrl; 55353567f36aSJayamohan Kallickal phba->shost->can_queue = phba->params.ios_per_ctrl; 55363567f36aSJayamohan Kallickal ret = hwi_init_controller(phba); 55373567f36aSJayamohan Kallickal 55383567f36aSJayamohan Kallickal for (i = 0; i < MAX_MCC_CMD; i++) { 55393567f36aSJayamohan Kallickal init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]); 55403567f36aSJayamohan Kallickal phba->ctrl.mcc_tag[i] = i + 1; 55413567f36aSJayamohan Kallickal phba->ctrl.mcc_numtag[i + 1] = 0; 55423567f36aSJayamohan Kallickal phba->ctrl.mcc_tag_available++; 55433567f36aSJayamohan Kallickal } 55443567f36aSJayamohan Kallickal 55453567f36aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 55463567f36aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 55473567f36aSJayamohan Kallickal 55483567f36aSJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 55493567f36aSJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 5550511cbce2SChristoph Hellwig irq_poll_init(&pbe_eq->iopoll, be_iopoll_budget, 55513567f36aSJayamohan Kallickal be_iopoll); 55523567f36aSJayamohan Kallickal } 55533567f36aSJayamohan Kallickal 55543567f36aSJayamohan Kallickal i = (phba->msix_enabled) ? i : 0; 55553567f36aSJayamohan Kallickal /* Work item for MCC handling */ 55563567f36aSJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 55573567f36aSJayamohan Kallickal INIT_WORK(&pbe_eq->work_cqs, beiscsi_process_all_cqs); 55583567f36aSJayamohan Kallickal 55593567f36aSJayamohan Kallickal ret = beiscsi_init_irqs(phba); 55603567f36aSJayamohan Kallickal if (ret < 0) { 55613567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 55623567f36aSJayamohan Kallickal "BM_%d : beiscsi_eeh_resume - " 55633567f36aSJayamohan Kallickal "Failed to beiscsi_init_irqs\n"); 55643567f36aSJayamohan Kallickal goto ret_err; 55653567f36aSJayamohan Kallickal } 55663567f36aSJayamohan Kallickal 55673567f36aSJayamohan Kallickal hwi_enable_intr(phba); 55683567f36aSJayamohan Kallickal phba->state &= ~BE_ADAPTER_PCI_ERR; 55693567f36aSJayamohan Kallickal 55703567f36aSJayamohan Kallickal return; 55713567f36aSJayamohan Kallickal ret_err: 55723567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 55733567f36aSJayamohan Kallickal "BM_%d : AER EEH Resume Failed\n"); 55743567f36aSJayamohan Kallickal } 55753567f36aSJayamohan Kallickal 55766f039790SGreg Kroah-Hartman static int beiscsi_dev_probe(struct pci_dev *pcidev, 55776733b39aSJayamohan Kallickal const struct pci_device_id *id) 55786733b39aSJayamohan Kallickal { 55796733b39aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 5580bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 5581bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 5582bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 55833567f36aSJayamohan Kallickal int ret = 0, i; 55846733b39aSJayamohan Kallickal 55856733b39aSJayamohan Kallickal ret = beiscsi_enable_pci(pcidev); 55866733b39aSJayamohan Kallickal if (ret < 0) { 558799bc5d55SJohn Soni Jose dev_err(&pcidev->dev, 558899bc5d55SJohn Soni Jose "beiscsi_dev_probe - Failed to enable pci device\n"); 55896733b39aSJayamohan Kallickal return ret; 55906733b39aSJayamohan Kallickal } 55916733b39aSJayamohan Kallickal 55926733b39aSJayamohan Kallickal phba = beiscsi_hba_alloc(pcidev); 55936733b39aSJayamohan Kallickal if (!phba) { 559499bc5d55SJohn Soni Jose dev_err(&pcidev->dev, 559599bc5d55SJohn Soni Jose "beiscsi_dev_probe - Failed in beiscsi_hba_alloc\n"); 55966733b39aSJayamohan Kallickal goto disable_pci; 55976733b39aSJayamohan Kallickal } 55986733b39aSJayamohan Kallickal 55993567f36aSJayamohan Kallickal /* Enable EEH reporting */ 56003567f36aSJayamohan Kallickal ret = pci_enable_pcie_error_reporting(pcidev); 56013567f36aSJayamohan Kallickal if (ret) 56023567f36aSJayamohan Kallickal beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT, 56033567f36aSJayamohan Kallickal "BM_%d : PCIe Error Reporting " 56043567f36aSJayamohan Kallickal "Enabling Failed\n"); 56053567f36aSJayamohan Kallickal 56063567f36aSJayamohan Kallickal pci_save_state(pcidev); 56073567f36aSJayamohan Kallickal 560899bc5d55SJohn Soni Jose /* Initialize Driver configuration Paramters */ 560999bc5d55SJohn Soni Jose beiscsi_hba_attrs_init(phba); 561099bc5d55SJohn Soni Jose 5611e175defeSJohn Soni Jose phba->fw_timeout = false; 56126c83185aSJayamohan Kallickal phba->mac_addr_set = false; 5613e175defeSJohn Soni Jose 5614e175defeSJohn Soni Jose 5615f98c96b0SJayamohan Kallickal switch (pcidev->device) { 5616f98c96b0SJayamohan Kallickal case BE_DEVICE_ID1: 5617f98c96b0SJayamohan Kallickal case OC_DEVICE_ID1: 5618f98c96b0SJayamohan Kallickal case OC_DEVICE_ID2: 5619f98c96b0SJayamohan Kallickal phba->generation = BE_GEN2; 562009a1093aSJohn Soni Jose phba->iotask_fn = beiscsi_iotask; 5621f98c96b0SJayamohan Kallickal break; 5622f98c96b0SJayamohan Kallickal case BE_DEVICE_ID2: 5623f98c96b0SJayamohan Kallickal case OC_DEVICE_ID3: 5624f98c96b0SJayamohan Kallickal phba->generation = BE_GEN3; 562509a1093aSJohn Soni Jose phba->iotask_fn = beiscsi_iotask; 5626f98c96b0SJayamohan Kallickal break; 5627139a1b1eSJohn Soni Jose case OC_SKH_ID1: 5628139a1b1eSJohn Soni Jose phba->generation = BE_GEN4; 562909a1093aSJohn Soni Jose phba->iotask_fn = beiscsi_iotask_v2; 5630bf9131cbSJayamohan Kallickal break; 5631f98c96b0SJayamohan Kallickal default: 5632f98c96b0SJayamohan Kallickal phba->generation = 0; 5633f98c96b0SJayamohan Kallickal } 5634f98c96b0SJayamohan Kallickal 56356733b39aSJayamohan Kallickal ret = be_ctrl_init(phba, pcidev); 56366733b39aSJayamohan Kallickal if (ret) { 563799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 563899bc5d55SJohn Soni Jose "BM_%d : beiscsi_dev_probe-" 56396733b39aSJayamohan Kallickal "Failed in be_ctrl_init\n"); 56406733b39aSJayamohan Kallickal goto hba_free; 56416733b39aSJayamohan Kallickal } 56426733b39aSJayamohan Kallickal 5643cdaa4dedSJitendra Bhivare /* 5644cdaa4dedSJitendra Bhivare * FUNCTION_RESET should clean up any stale info in FW for this fn 5645cdaa4dedSJitendra Bhivare */ 5646e5285860SJayamohan Kallickal ret = beiscsi_cmd_reset_function(phba); 5647e9b91193SJayamohan Kallickal if (ret) { 564899bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 564992665a66SJayamohan Kallickal "BM_%d : Reset Failed\n"); 5650e9b91193SJayamohan Kallickal goto hba_free; 5651e9b91193SJayamohan Kallickal } 5652e9b91193SJayamohan Kallickal ret = be_chk_reset_complete(phba); 5653e9b91193SJayamohan Kallickal if (ret) { 565499bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 565592665a66SJayamohan Kallickal "BM_%d : Failed to get out of reset.\n"); 5656e9b91193SJayamohan Kallickal goto hba_free; 5657e9b91193SJayamohan Kallickal } 5658e9b91193SJayamohan Kallickal 56596733b39aSJayamohan Kallickal spin_lock_init(&phba->io_sgl_lock); 56606733b39aSJayamohan Kallickal spin_lock_init(&phba->mgmt_sgl_lock); 56616733b39aSJayamohan Kallickal spin_lock_init(&phba->isr_lock); 56628f09a3b9SJayamohan Kallickal spin_lock_init(&phba->async_pdu_lock); 56637da50879SJayamohan Kallickal ret = mgmt_get_fw_config(&phba->ctrl, phba); 56647da50879SJayamohan Kallickal if (ret != 0) { 566599bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 566699bc5d55SJohn Soni Jose "BM_%d : Error getting fw config\n"); 56677da50879SJayamohan Kallickal goto free_port; 56687da50879SJayamohan Kallickal } 566953aefe25SJitendra Bhivare mgmt_get_port_name(&phba->ctrl, phba); 56704570f161SJitendra Bhivare beiscsi_get_params(phba); 567168c26a3aSJayamohan Kallickal 567268c26a3aSJayamohan Kallickal if (enable_msix) 567368c26a3aSJayamohan Kallickal find_num_cpus(phba); 567468c26a3aSJayamohan Kallickal else 567568c26a3aSJayamohan Kallickal phba->num_cpus = 1; 567668c26a3aSJayamohan Kallickal 567768c26a3aSJayamohan Kallickal beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 567868c26a3aSJayamohan Kallickal "BM_%d : num_cpus = %d\n", 567968c26a3aSJayamohan Kallickal phba->num_cpus); 568068c26a3aSJayamohan Kallickal 568168c26a3aSJayamohan Kallickal if (enable_msix) { 568268c26a3aSJayamohan Kallickal beiscsi_msix_enable(phba); 568368c26a3aSJayamohan Kallickal if (!phba->msix_enabled) 568468c26a3aSJayamohan Kallickal phba->num_cpus = 1; 568568c26a3aSJayamohan Kallickal } 568668c26a3aSJayamohan Kallickal 5687843ae752SJayamohan Kallickal phba->shost->max_id = phba->params.cxns_per_ctrl; 5688aa874f07SJayamohan Kallickal phba->shost->can_queue = phba->params.ios_per_ctrl; 56896733b39aSJayamohan Kallickal ret = beiscsi_init_port(phba); 56906733b39aSJayamohan Kallickal if (ret < 0) { 569199bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 569299bc5d55SJohn Soni Jose "BM_%d : beiscsi_dev_probe-" 56936733b39aSJayamohan Kallickal "Failed in beiscsi_init_port\n"); 56946733b39aSJayamohan Kallickal goto free_port; 56956733b39aSJayamohan Kallickal } 56966733b39aSJayamohan Kallickal 5697756d29c8SJayamohan Kallickal for (i = 0; i < MAX_MCC_CMD; i++) { 5698756d29c8SJayamohan Kallickal init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]); 5699756d29c8SJayamohan Kallickal phba->ctrl.mcc_tag[i] = i + 1; 5700756d29c8SJayamohan Kallickal phba->ctrl.mcc_numtag[i + 1] = 0; 5701756d29c8SJayamohan Kallickal phba->ctrl.mcc_tag_available++; 57021957aa7fSJayamohan Kallickal memset(&phba->ctrl.ptag_state[i].tag_mem_state, 0, 57038fc01eaaSJayamohan Kallickal sizeof(struct be_dma_mem)); 5704756d29c8SJayamohan Kallickal } 5705756d29c8SJayamohan Kallickal 5706756d29c8SJayamohan Kallickal phba->ctrl.mcc_alloc_index = phba->ctrl.mcc_free_index = 0; 5707756d29c8SJayamohan Kallickal 570872fb46a9SJohn Soni Jose snprintf(phba->wq_name, sizeof(phba->wq_name), "beiscsi_%02x_wq", 57096733b39aSJayamohan Kallickal phba->shost->host_no); 5710d8537548SKees Cook phba->wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, phba->wq_name); 57116733b39aSJayamohan Kallickal if (!phba->wq) { 571299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 571399bc5d55SJohn Soni Jose "BM_%d : beiscsi_dev_probe-" 57146733b39aSJayamohan Kallickal "Failed to allocate work queue\n"); 57156733b39aSJayamohan Kallickal goto free_twq; 57166733b39aSJayamohan Kallickal } 57176733b39aSJayamohan Kallickal 57187a158003SJohn Soni Jose INIT_DELAYED_WORK(&phba->beiscsi_hw_check_task, 57197a158003SJohn Soni Jose beiscsi_hw_health_check); 57206733b39aSJayamohan Kallickal 5721bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 5722bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 572372fb46a9SJohn Soni Jose 5724bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 5725bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 5726511cbce2SChristoph Hellwig irq_poll_init(&pbe_eq->iopoll, be_iopoll_budget, 5727bfead3b2SJayamohan Kallickal be_iopoll); 57286733b39aSJayamohan Kallickal } 572972fb46a9SJohn Soni Jose 573072fb46a9SJohn Soni Jose i = (phba->msix_enabled) ? i : 0; 573172fb46a9SJohn Soni Jose /* Work item for MCC handling */ 573272fb46a9SJohn Soni Jose pbe_eq = &phwi_context->be_eq[i]; 573372fb46a9SJohn Soni Jose INIT_WORK(&pbe_eq->work_cqs, beiscsi_process_all_cqs); 573472fb46a9SJohn Soni Jose 57356733b39aSJayamohan Kallickal ret = beiscsi_init_irqs(phba); 57366733b39aSJayamohan Kallickal if (ret < 0) { 573799bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 573899bc5d55SJohn Soni Jose "BM_%d : beiscsi_dev_probe-" 57396733b39aSJayamohan Kallickal "Failed to beiscsi_init_irqs\n"); 57406733b39aSJayamohan Kallickal goto free_blkenbld; 57416733b39aSJayamohan Kallickal } 5742238f6b72SJayamohan Kallickal hwi_enable_intr(phba); 5743f457a46fSMike Christie 57440598b8afSJayamohan Kallickal if (iscsi_host_add(phba->shost, &phba->pcidev->dev)) 57450598b8afSJayamohan Kallickal goto free_blkenbld; 57460598b8afSJayamohan Kallickal 5747f457a46fSMike Christie if (beiscsi_setup_boot_info(phba)) 5748f457a46fSMike Christie /* 5749f457a46fSMike Christie * log error but continue, because we may not be using 5750f457a46fSMike Christie * iscsi boot. 5751f457a46fSMike Christie */ 575299bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 575399bc5d55SJohn Soni Jose "BM_%d : Could not set up " 57540e43895eSMike Christie "iSCSI boot info.\n"); 5755f457a46fSMike Christie 57560e43895eSMike Christie beiscsi_create_def_ifaces(phba); 57577a158003SJohn Soni Jose schedule_delayed_work(&phba->beiscsi_hw_check_task, 57587a158003SJohn Soni Jose msecs_to_jiffies(1000)); 57597a158003SJohn Soni Jose 576099bc5d55SJohn Soni Jose beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 576199bc5d55SJohn Soni Jose "\n\n\n BM_%d : SUCCESS - DRIVER LOADED\n\n\n"); 57626733b39aSJayamohan Kallickal return 0; 57636733b39aSJayamohan Kallickal 57646733b39aSJayamohan Kallickal free_blkenbld: 57656733b39aSJayamohan Kallickal destroy_workqueue(phba->wq); 5766bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 5767bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 5768511cbce2SChristoph Hellwig irq_poll_disable(&pbe_eq->iopoll); 5769bfead3b2SJayamohan Kallickal } 57706733b39aSJayamohan Kallickal free_twq: 57716733b39aSJayamohan Kallickal beiscsi_clean_port(phba); 57726733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 57736733b39aSJayamohan Kallickal free_port: 57746733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 57756733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.size, 57766733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.va, 57776733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.dma); 57786733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 57796733b39aSJayamohan Kallickal hba_free: 5780238f6b72SJayamohan Kallickal if (phba->msix_enabled) 5781238f6b72SJayamohan Kallickal pci_disable_msix(phba->pcidev); 57826733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 57836733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 57842e7cee02SJohn Soni Jose pci_set_drvdata(pcidev, NULL); 57856733b39aSJayamohan Kallickal disable_pci: 5786e307f3acSJohn Soni Jose pci_release_regions(pcidev); 57876733b39aSJayamohan Kallickal pci_disable_device(pcidev); 57886733b39aSJayamohan Kallickal return ret; 57896733b39aSJayamohan Kallickal } 57906733b39aSJayamohan Kallickal 57913567f36aSJayamohan Kallickal static struct pci_error_handlers beiscsi_eeh_handlers = { 57923567f36aSJayamohan Kallickal .error_detected = beiscsi_eeh_err_detected, 57933567f36aSJayamohan Kallickal .slot_reset = beiscsi_eeh_reset, 57943567f36aSJayamohan Kallickal .resume = beiscsi_eeh_resume, 57953567f36aSJayamohan Kallickal }; 57963567f36aSJayamohan Kallickal 57976733b39aSJayamohan Kallickal struct iscsi_transport beiscsi_iscsi_transport = { 57986733b39aSJayamohan Kallickal .owner = THIS_MODULE, 57996733b39aSJayamohan Kallickal .name = DRV_NAME, 58009db0fb3aSJayamohan Kallickal .caps = CAP_RECOVERY_L0 | CAP_HDRDGST | CAP_TEXT_NEGO | 58016733b39aSJayamohan Kallickal CAP_MULTI_R2T | CAP_DATADGST | CAP_DATA_PATH_OFFLOAD, 58026733b39aSJayamohan Kallickal .create_session = beiscsi_session_create, 58036733b39aSJayamohan Kallickal .destroy_session = beiscsi_session_destroy, 58046733b39aSJayamohan Kallickal .create_conn = beiscsi_conn_create, 58056733b39aSJayamohan Kallickal .bind_conn = beiscsi_conn_bind, 58066733b39aSJayamohan Kallickal .destroy_conn = iscsi_conn_teardown, 58073128c6c7SMike Christie .attr_is_visible = be2iscsi_attr_is_visible, 58080e43895eSMike Christie .set_iface_param = be2iscsi_iface_set_param, 58090e43895eSMike Christie .get_iface_param = be2iscsi_iface_get_param, 58106733b39aSJayamohan Kallickal .set_param = beiscsi_set_param, 5811c7f7fd5bSMike Christie .get_conn_param = iscsi_conn_get_param, 58126733b39aSJayamohan Kallickal .get_session_param = iscsi_session_get_param, 58136733b39aSJayamohan Kallickal .get_host_param = beiscsi_get_host_param, 58146733b39aSJayamohan Kallickal .start_conn = beiscsi_conn_start, 5815fa95d206SMike Christie .stop_conn = iscsi_conn_stop, 58166733b39aSJayamohan Kallickal .send_pdu = iscsi_conn_send_pdu, 58176733b39aSJayamohan Kallickal .xmit_task = beiscsi_task_xmit, 58186733b39aSJayamohan Kallickal .cleanup_task = beiscsi_cleanup_task, 58196733b39aSJayamohan Kallickal .alloc_pdu = beiscsi_alloc_pdu, 58206733b39aSJayamohan Kallickal .parse_pdu_itt = beiscsi_parse_pdu, 58216733b39aSJayamohan Kallickal .get_stats = beiscsi_conn_get_stats, 5822c7f7fd5bSMike Christie .get_ep_param = beiscsi_ep_get_param, 58236733b39aSJayamohan Kallickal .ep_connect = beiscsi_ep_connect, 58246733b39aSJayamohan Kallickal .ep_poll = beiscsi_ep_poll, 58256733b39aSJayamohan Kallickal .ep_disconnect = beiscsi_ep_disconnect, 58266733b39aSJayamohan Kallickal .session_recovery_timedout = iscsi_session_recovery_timedout, 5827ffce3e2eSJayamohan Kallickal .bsg_request = beiscsi_bsg_request, 58286733b39aSJayamohan Kallickal }; 58296733b39aSJayamohan Kallickal 58306733b39aSJayamohan Kallickal static struct pci_driver beiscsi_pci_driver = { 58316733b39aSJayamohan Kallickal .name = DRV_NAME, 58326733b39aSJayamohan Kallickal .probe = beiscsi_dev_probe, 58336733b39aSJayamohan Kallickal .remove = beiscsi_remove, 58343567f36aSJayamohan Kallickal .id_table = beiscsi_pci_id_table, 58353567f36aSJayamohan Kallickal .err_handler = &beiscsi_eeh_handlers 58366733b39aSJayamohan Kallickal }; 58376733b39aSJayamohan Kallickal 5838bfead3b2SJayamohan Kallickal 58396733b39aSJayamohan Kallickal static int __init beiscsi_module_init(void) 58406733b39aSJayamohan Kallickal { 58416733b39aSJayamohan Kallickal int ret; 58426733b39aSJayamohan Kallickal 58436733b39aSJayamohan Kallickal beiscsi_scsi_transport = 58446733b39aSJayamohan Kallickal iscsi_register_transport(&beiscsi_iscsi_transport); 58456733b39aSJayamohan Kallickal if (!beiscsi_scsi_transport) { 584699bc5d55SJohn Soni Jose printk(KERN_ERR 584799bc5d55SJohn Soni Jose "beiscsi_module_init - Unable to register beiscsi transport.\n"); 5848f55a24f2SJayamohan Kallickal return -ENOMEM; 58496733b39aSJayamohan Kallickal } 585099bc5d55SJohn Soni Jose printk(KERN_INFO "In beiscsi_module_init, tt=%p\n", 58516733b39aSJayamohan Kallickal &beiscsi_iscsi_transport); 58526733b39aSJayamohan Kallickal 58536733b39aSJayamohan Kallickal ret = pci_register_driver(&beiscsi_pci_driver); 58546733b39aSJayamohan Kallickal if (ret) { 585599bc5d55SJohn Soni Jose printk(KERN_ERR 585699bc5d55SJohn Soni Jose "beiscsi_module_init - Unable to register beiscsi pci driver.\n"); 58576733b39aSJayamohan Kallickal goto unregister_iscsi_transport; 58586733b39aSJayamohan Kallickal } 58596733b39aSJayamohan Kallickal return 0; 58606733b39aSJayamohan Kallickal 58616733b39aSJayamohan Kallickal unregister_iscsi_transport: 58626733b39aSJayamohan Kallickal iscsi_unregister_transport(&beiscsi_iscsi_transport); 58636733b39aSJayamohan Kallickal return ret; 58646733b39aSJayamohan Kallickal } 58656733b39aSJayamohan Kallickal 58666733b39aSJayamohan Kallickal static void __exit beiscsi_module_exit(void) 58676733b39aSJayamohan Kallickal { 58686733b39aSJayamohan Kallickal pci_unregister_driver(&beiscsi_pci_driver); 58696733b39aSJayamohan Kallickal iscsi_unregister_transport(&beiscsi_iscsi_transport); 58706733b39aSJayamohan Kallickal } 58716733b39aSJayamohan Kallickal 58726733b39aSJayamohan Kallickal module_init(beiscsi_module_init); 58736733b39aSJayamohan Kallickal module_exit(beiscsi_module_exit); 5874