16733b39aSJayamohan Kallickal /** 2255fa9a3SJayamohan Kallickal * Copyright (C) 2005 - 2011 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 * 10255fa9a3SJayamohan Kallickal * Written by: Jayamohan Kallickal (jayamohan.kallickal@emulex.com) 116733b39aSJayamohan Kallickal * 126733b39aSJayamohan Kallickal * Contact Information: 13255fa9a3SJayamohan Kallickal * linux-drivers@emulex.com 146733b39aSJayamohan Kallickal * 15255fa9a3SJayamohan Kallickal * 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> 316733b39aSJayamohan Kallickal 326733b39aSJayamohan Kallickal #include <scsi/libiscsi.h> 336733b39aSJayamohan Kallickal #include <scsi/scsi_transport_iscsi.h> 346733b39aSJayamohan Kallickal #include <scsi/scsi_transport.h> 356733b39aSJayamohan Kallickal #include <scsi/scsi_cmnd.h> 366733b39aSJayamohan Kallickal #include <scsi/scsi_device.h> 376733b39aSJayamohan Kallickal #include <scsi/scsi_host.h> 386733b39aSJayamohan Kallickal #include <scsi/scsi.h> 396733b39aSJayamohan Kallickal #include "be_main.h" 406733b39aSJayamohan Kallickal #include "be_iscsi.h" 416733b39aSJayamohan Kallickal #include "be_mgmt.h" 426733b39aSJayamohan Kallickal 436733b39aSJayamohan Kallickal static unsigned int be_iopoll_budget = 10; 446733b39aSJayamohan Kallickal static unsigned int be_max_phys_size = 64; 45bfead3b2SJayamohan Kallickal static unsigned int enable_msix = 1; 46e9b91193SJayamohan Kallickal static unsigned int gcrashmode = 0; 47e9b91193SJayamohan Kallickal static unsigned int num_hba = 0; 486733b39aSJayamohan Kallickal 496733b39aSJayamohan Kallickal MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table); 506733b39aSJayamohan Kallickal MODULE_DESCRIPTION(DRV_DESC " " BUILD_STR); 516733b39aSJayamohan Kallickal MODULE_AUTHOR("ServerEngines Corporation"); 526733b39aSJayamohan Kallickal MODULE_LICENSE("GPL"); 536733b39aSJayamohan Kallickal module_param(be_iopoll_budget, int, 0); 546733b39aSJayamohan Kallickal module_param(enable_msix, int, 0); 556733b39aSJayamohan Kallickal module_param(be_max_phys_size, uint, S_IRUGO); 566733b39aSJayamohan Kallickal MODULE_PARM_DESC(be_max_phys_size, "Maximum Size (In Kilobytes) of physically" 576733b39aSJayamohan Kallickal "contiguous memory that can be allocated." 586733b39aSJayamohan Kallickal "Range is 16 - 128"); 596733b39aSJayamohan Kallickal 606733b39aSJayamohan Kallickal static int beiscsi_slave_configure(struct scsi_device *sdev) 616733b39aSJayamohan Kallickal { 626733b39aSJayamohan Kallickal blk_queue_max_segment_size(sdev->request_queue, 65536); 636733b39aSJayamohan Kallickal return 0; 646733b39aSJayamohan Kallickal } 656733b39aSJayamohan Kallickal 664183122dSJayamohan Kallickal static int beiscsi_eh_abort(struct scsi_cmnd *sc) 674183122dSJayamohan Kallickal { 684183122dSJayamohan Kallickal struct iscsi_cls_session *cls_session; 694183122dSJayamohan Kallickal struct iscsi_task *aborted_task = (struct iscsi_task *)sc->SCp.ptr; 704183122dSJayamohan Kallickal struct beiscsi_io_task *aborted_io_task; 714183122dSJayamohan Kallickal struct iscsi_conn *conn; 724183122dSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 734183122dSJayamohan Kallickal struct beiscsi_hba *phba; 744183122dSJayamohan Kallickal struct iscsi_session *session; 754183122dSJayamohan Kallickal struct invalidate_command_table *inv_tbl; 763cbb7a74SJayamohan Kallickal struct be_dma_mem nonemb_cmd; 774183122dSJayamohan Kallickal unsigned int cid, tag, num_invalidate; 784183122dSJayamohan Kallickal 794183122dSJayamohan Kallickal cls_session = starget_to_session(scsi_target(sc->device)); 804183122dSJayamohan Kallickal session = cls_session->dd_data; 814183122dSJayamohan Kallickal 824183122dSJayamohan Kallickal spin_lock_bh(&session->lock); 834183122dSJayamohan Kallickal if (!aborted_task || !aborted_task->sc) { 844183122dSJayamohan Kallickal /* we raced */ 854183122dSJayamohan Kallickal spin_unlock_bh(&session->lock); 864183122dSJayamohan Kallickal return SUCCESS; 874183122dSJayamohan Kallickal } 884183122dSJayamohan Kallickal 894183122dSJayamohan Kallickal aborted_io_task = aborted_task->dd_data; 904183122dSJayamohan Kallickal if (!aborted_io_task->scsi_cmnd) { 914183122dSJayamohan Kallickal /* raced or invalid command */ 924183122dSJayamohan Kallickal spin_unlock_bh(&session->lock); 934183122dSJayamohan Kallickal return SUCCESS; 944183122dSJayamohan Kallickal } 954183122dSJayamohan Kallickal spin_unlock_bh(&session->lock); 964183122dSJayamohan Kallickal conn = aborted_task->conn; 974183122dSJayamohan Kallickal beiscsi_conn = conn->dd_data; 984183122dSJayamohan Kallickal phba = beiscsi_conn->phba; 994183122dSJayamohan Kallickal 1004183122dSJayamohan Kallickal /* invalidate iocb */ 1014183122dSJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 1024183122dSJayamohan Kallickal inv_tbl = phba->inv_tbl; 1034183122dSJayamohan Kallickal memset(inv_tbl, 0x0, sizeof(*inv_tbl)); 1044183122dSJayamohan Kallickal inv_tbl->cid = cid; 1054183122dSJayamohan Kallickal inv_tbl->icd = aborted_io_task->psgl_handle->sgl_index; 1064183122dSJayamohan Kallickal num_invalidate = 1; 1073cbb7a74SJayamohan Kallickal nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev, 1083cbb7a74SJayamohan Kallickal sizeof(struct invalidate_commands_params_in), 1093cbb7a74SJayamohan Kallickal &nonemb_cmd.dma); 1103cbb7a74SJayamohan Kallickal if (nonemb_cmd.va == NULL) { 1113cbb7a74SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 1123cbb7a74SJayamohan Kallickal "Failed to allocate memory for" 1133cbb7a74SJayamohan Kallickal "mgmt_invalidate_icds\n"); 1143cbb7a74SJayamohan Kallickal return FAILED; 1153cbb7a74SJayamohan Kallickal } 1163cbb7a74SJayamohan Kallickal nonemb_cmd.size = sizeof(struct invalidate_commands_params_in); 1173cbb7a74SJayamohan Kallickal 1183cbb7a74SJayamohan Kallickal tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, 1193cbb7a74SJayamohan Kallickal cid, &nonemb_cmd); 1204183122dSJayamohan Kallickal if (!tag) { 1214183122dSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 1224183122dSJayamohan Kallickal "mgmt_invalidate_icds could not be" 1234183122dSJayamohan Kallickal " submitted\n"); 1243cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 1253cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 1263cbb7a74SJayamohan Kallickal 1274183122dSJayamohan Kallickal return FAILED; 1284183122dSJayamohan Kallickal } else { 1294183122dSJayamohan Kallickal wait_event_interruptible(phba->ctrl.mcc_wait[tag], 1304183122dSJayamohan Kallickal phba->ctrl.mcc_numtag[tag]); 1314183122dSJayamohan Kallickal free_mcc_tag(&phba->ctrl, tag); 1324183122dSJayamohan Kallickal } 1333cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 1343cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 1354183122dSJayamohan Kallickal return iscsi_eh_abort(sc); 1364183122dSJayamohan Kallickal } 1374183122dSJayamohan Kallickal 1384183122dSJayamohan Kallickal static int beiscsi_eh_device_reset(struct scsi_cmnd *sc) 1394183122dSJayamohan Kallickal { 1404183122dSJayamohan Kallickal struct iscsi_task *abrt_task; 1414183122dSJayamohan Kallickal struct beiscsi_io_task *abrt_io_task; 1424183122dSJayamohan Kallickal struct iscsi_conn *conn; 1434183122dSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 1444183122dSJayamohan Kallickal struct beiscsi_hba *phba; 1454183122dSJayamohan Kallickal struct iscsi_session *session; 1464183122dSJayamohan Kallickal struct iscsi_cls_session *cls_session; 1474183122dSJayamohan Kallickal struct invalidate_command_table *inv_tbl; 1483cbb7a74SJayamohan Kallickal struct be_dma_mem nonemb_cmd; 1494183122dSJayamohan Kallickal unsigned int cid, tag, i, num_invalidate; 1504183122dSJayamohan Kallickal int rc = FAILED; 1514183122dSJayamohan Kallickal 1524183122dSJayamohan Kallickal /* invalidate iocbs */ 1534183122dSJayamohan Kallickal cls_session = starget_to_session(scsi_target(sc->device)); 1544183122dSJayamohan Kallickal session = cls_session->dd_data; 1554183122dSJayamohan Kallickal spin_lock_bh(&session->lock); 1564183122dSJayamohan Kallickal if (!session->leadconn || session->state != ISCSI_STATE_LOGGED_IN) 1574183122dSJayamohan Kallickal goto unlock; 1584183122dSJayamohan Kallickal 1594183122dSJayamohan Kallickal conn = session->leadconn; 1604183122dSJayamohan Kallickal beiscsi_conn = conn->dd_data; 1614183122dSJayamohan Kallickal phba = beiscsi_conn->phba; 1624183122dSJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 1634183122dSJayamohan Kallickal inv_tbl = phba->inv_tbl; 1644183122dSJayamohan Kallickal memset(inv_tbl, 0x0, sizeof(*inv_tbl) * BE2_CMDS_PER_CXN); 1654183122dSJayamohan Kallickal num_invalidate = 0; 1664183122dSJayamohan Kallickal for (i = 0; i < conn->session->cmds_max; i++) { 1674183122dSJayamohan Kallickal abrt_task = conn->session->cmds[i]; 1684183122dSJayamohan Kallickal abrt_io_task = abrt_task->dd_data; 1694183122dSJayamohan Kallickal if (!abrt_task->sc || abrt_task->state == ISCSI_TASK_FREE) 1704183122dSJayamohan Kallickal continue; 1714183122dSJayamohan Kallickal 1724183122dSJayamohan Kallickal if (abrt_task->sc->device->lun != abrt_task->sc->device->lun) 1734183122dSJayamohan Kallickal continue; 1744183122dSJayamohan Kallickal 1754183122dSJayamohan Kallickal inv_tbl->cid = cid; 1764183122dSJayamohan Kallickal inv_tbl->icd = abrt_io_task->psgl_handle->sgl_index; 1774183122dSJayamohan Kallickal num_invalidate++; 1784183122dSJayamohan Kallickal inv_tbl++; 1794183122dSJayamohan Kallickal } 1804183122dSJayamohan Kallickal spin_unlock_bh(&session->lock); 1814183122dSJayamohan Kallickal inv_tbl = phba->inv_tbl; 1824183122dSJayamohan Kallickal 1833cbb7a74SJayamohan Kallickal nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev, 1843cbb7a74SJayamohan Kallickal sizeof(struct invalidate_commands_params_in), 1853cbb7a74SJayamohan Kallickal &nonemb_cmd.dma); 1863cbb7a74SJayamohan Kallickal if (nonemb_cmd.va == NULL) { 1873cbb7a74SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 1883cbb7a74SJayamohan Kallickal "Failed to allocate memory for" 1893cbb7a74SJayamohan Kallickal "mgmt_invalidate_icds\n"); 1903cbb7a74SJayamohan Kallickal return FAILED; 1913cbb7a74SJayamohan Kallickal } 1923cbb7a74SJayamohan Kallickal nonemb_cmd.size = sizeof(struct invalidate_commands_params_in); 1933cbb7a74SJayamohan Kallickal memset(nonemb_cmd.va, 0, nonemb_cmd.size); 1943cbb7a74SJayamohan Kallickal tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, 1953cbb7a74SJayamohan Kallickal cid, &nonemb_cmd); 1964183122dSJayamohan Kallickal if (!tag) { 1974183122dSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 1984183122dSJayamohan Kallickal "mgmt_invalidate_icds could not be" 1994183122dSJayamohan Kallickal " submitted\n"); 2003cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 2013cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 2024183122dSJayamohan Kallickal return FAILED; 2034183122dSJayamohan Kallickal } else { 2044183122dSJayamohan Kallickal wait_event_interruptible(phba->ctrl.mcc_wait[tag], 2054183122dSJayamohan Kallickal phba->ctrl.mcc_numtag[tag]); 2064183122dSJayamohan Kallickal free_mcc_tag(&phba->ctrl, tag); 2074183122dSJayamohan Kallickal } 2083cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 2093cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 2104183122dSJayamohan Kallickal return iscsi_eh_device_reset(sc); 2114183122dSJayamohan Kallickal unlock: 2124183122dSJayamohan Kallickal spin_unlock_bh(&session->lock); 2134183122dSJayamohan Kallickal return rc; 2144183122dSJayamohan Kallickal } 2154183122dSJayamohan Kallickal 216c7acc5b8SJayamohan Kallickal static ssize_t beiscsi_show_boot_tgt_info(void *data, int type, char *buf) 217c7acc5b8SJayamohan Kallickal { 218c7acc5b8SJayamohan Kallickal struct beiscsi_hba *phba = data; 219f457a46fSMike Christie struct mgmt_session_info *boot_sess = &phba->boot_sess; 220f457a46fSMike Christie struct mgmt_conn_info *boot_conn = &boot_sess->conn_list[0]; 221c7acc5b8SJayamohan Kallickal char *str = buf; 222c7acc5b8SJayamohan Kallickal int rc; 223c7acc5b8SJayamohan Kallickal 224c7acc5b8SJayamohan Kallickal switch (type) { 225c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NAME: 226c7acc5b8SJayamohan Kallickal rc = sprintf(buf, "%.*s\n", 227f457a46fSMike Christie (int)strlen(boot_sess->target_name), 228f457a46fSMike Christie (char *)&boot_sess->target_name); 229c7acc5b8SJayamohan Kallickal break; 230c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_IP_ADDR: 231f457a46fSMike Christie if (boot_conn->dest_ipaddr.ip_type == 0x1) 232c7acc5b8SJayamohan Kallickal rc = sprintf(buf, "%pI4\n", 233f457a46fSMike Christie (char *)&boot_conn->dest_ipaddr.ip_address); 234c7acc5b8SJayamohan Kallickal else 235c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%pI6\n", 236f457a46fSMike Christie (char *)&boot_conn->dest_ipaddr.ip_address); 237c7acc5b8SJayamohan Kallickal break; 238c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_PORT: 239f457a46fSMike Christie rc = sprintf(str, "%d\n", boot_conn->dest_port); 240c7acc5b8SJayamohan Kallickal break; 241c7acc5b8SJayamohan Kallickal 242c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_NAME: 243c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 244f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 245c7acc5b8SJayamohan Kallickal target_chap_name_length, 246f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 247f457a46fSMike Christie auth_data.chap.target_chap_name); 248c7acc5b8SJayamohan Kallickal break; 249c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_SECRET: 250c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 251f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 252c7acc5b8SJayamohan Kallickal target_secret_length, 253f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 254f457a46fSMike Christie auth_data.chap.target_secret); 255c7acc5b8SJayamohan Kallickal break; 256c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_NAME: 257c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 258f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 259c7acc5b8SJayamohan Kallickal intr_chap_name_length, 260f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 261f457a46fSMike Christie auth_data.chap.intr_chap_name); 262c7acc5b8SJayamohan Kallickal break; 263c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 264c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 265f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 266c7acc5b8SJayamohan Kallickal intr_secret_length, 267f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 268f457a46fSMike Christie auth_data.chap.intr_secret); 269c7acc5b8SJayamohan Kallickal break; 270c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_FLAGS: 271c7acc5b8SJayamohan Kallickal rc = sprintf(str, "2\n"); 272c7acc5b8SJayamohan Kallickal break; 273c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NIC_ASSOC: 274c7acc5b8SJayamohan Kallickal rc = sprintf(str, "0\n"); 275c7acc5b8SJayamohan Kallickal break; 276c7acc5b8SJayamohan Kallickal default: 277c7acc5b8SJayamohan Kallickal rc = -ENOSYS; 278c7acc5b8SJayamohan Kallickal break; 279c7acc5b8SJayamohan Kallickal } 280c7acc5b8SJayamohan Kallickal return rc; 281c7acc5b8SJayamohan Kallickal } 282c7acc5b8SJayamohan Kallickal 283c7acc5b8SJayamohan Kallickal static ssize_t beiscsi_show_boot_ini_info(void *data, int type, char *buf) 284c7acc5b8SJayamohan Kallickal { 285c7acc5b8SJayamohan Kallickal struct beiscsi_hba *phba = data; 286c7acc5b8SJayamohan Kallickal char *str = buf; 287c7acc5b8SJayamohan Kallickal int rc; 288c7acc5b8SJayamohan Kallickal 289c7acc5b8SJayamohan Kallickal switch (type) { 290c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_INI_INITIATOR_NAME: 291c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%s\n", phba->boot_sess.initiator_iscsiname); 292c7acc5b8SJayamohan Kallickal break; 293c7acc5b8SJayamohan Kallickal default: 294c7acc5b8SJayamohan Kallickal rc = -ENOSYS; 295c7acc5b8SJayamohan Kallickal break; 296c7acc5b8SJayamohan Kallickal } 297c7acc5b8SJayamohan Kallickal return rc; 298c7acc5b8SJayamohan Kallickal } 299c7acc5b8SJayamohan Kallickal 300c7acc5b8SJayamohan Kallickal static ssize_t beiscsi_show_boot_eth_info(void *data, int type, char *buf) 301c7acc5b8SJayamohan Kallickal { 302c7acc5b8SJayamohan Kallickal struct beiscsi_hba *phba = data; 303c7acc5b8SJayamohan Kallickal char *str = buf; 304c7acc5b8SJayamohan Kallickal int rc; 305c7acc5b8SJayamohan Kallickal 306c7acc5b8SJayamohan Kallickal switch (type) { 307c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_FLAGS: 308c7acc5b8SJayamohan Kallickal rc = sprintf(str, "2\n"); 309c7acc5b8SJayamohan Kallickal break; 310c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_INDEX: 311c7acc5b8SJayamohan Kallickal rc = sprintf(str, "0\n"); 312c7acc5b8SJayamohan Kallickal break; 313c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_MAC: 314c7acc5b8SJayamohan Kallickal rc = beiscsi_get_macaddr(buf, phba); 315c7acc5b8SJayamohan Kallickal if (rc < 0) { 316c7acc5b8SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "beiscsi_get_macaddr Failed\n"); 317c7acc5b8SJayamohan Kallickal return rc; 318c7acc5b8SJayamohan Kallickal } 319c7acc5b8SJayamohan Kallickal break; 320c7acc5b8SJayamohan Kallickal default: 321c7acc5b8SJayamohan Kallickal rc = -ENOSYS; 322c7acc5b8SJayamohan Kallickal break; 323c7acc5b8SJayamohan Kallickal } 324c7acc5b8SJayamohan Kallickal return rc; 325c7acc5b8SJayamohan Kallickal } 326c7acc5b8SJayamohan Kallickal 327c7acc5b8SJayamohan Kallickal 328c7acc5b8SJayamohan Kallickal static mode_t beiscsi_tgt_get_attr_visibility(void *data, int type) 329c7acc5b8SJayamohan Kallickal { 330c7acc5b8SJayamohan Kallickal int rc; 331c7acc5b8SJayamohan Kallickal 332c7acc5b8SJayamohan Kallickal switch (type) { 333c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NAME: 334c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_IP_ADDR: 335c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_PORT: 336c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_NAME: 337c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_SECRET: 338c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_NAME: 339c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 340c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NIC_ASSOC: 341c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_FLAGS: 342c7acc5b8SJayamohan Kallickal rc = S_IRUGO; 343c7acc5b8SJayamohan Kallickal break; 344c7acc5b8SJayamohan Kallickal default: 345c7acc5b8SJayamohan Kallickal rc = 0; 346c7acc5b8SJayamohan Kallickal break; 347c7acc5b8SJayamohan Kallickal } 348c7acc5b8SJayamohan Kallickal return rc; 349c7acc5b8SJayamohan Kallickal } 350c7acc5b8SJayamohan Kallickal 351c7acc5b8SJayamohan Kallickal static mode_t beiscsi_ini_get_attr_visibility(void *data, int type) 352c7acc5b8SJayamohan Kallickal { 353c7acc5b8SJayamohan Kallickal int rc; 354c7acc5b8SJayamohan Kallickal 355c7acc5b8SJayamohan Kallickal switch (type) { 356c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_INI_INITIATOR_NAME: 357c7acc5b8SJayamohan Kallickal rc = S_IRUGO; 358c7acc5b8SJayamohan Kallickal break; 359c7acc5b8SJayamohan Kallickal default: 360c7acc5b8SJayamohan Kallickal rc = 0; 361c7acc5b8SJayamohan Kallickal break; 362c7acc5b8SJayamohan Kallickal } 363c7acc5b8SJayamohan Kallickal return rc; 364c7acc5b8SJayamohan Kallickal } 365c7acc5b8SJayamohan Kallickal 366c7acc5b8SJayamohan Kallickal 367c7acc5b8SJayamohan Kallickal static mode_t beiscsi_eth_get_attr_visibility(void *data, int type) 368c7acc5b8SJayamohan Kallickal { 369c7acc5b8SJayamohan Kallickal int rc; 370c7acc5b8SJayamohan Kallickal 371c7acc5b8SJayamohan Kallickal switch (type) { 372c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_FLAGS: 373c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_MAC: 374c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_INDEX: 375c7acc5b8SJayamohan Kallickal rc = S_IRUGO; 376c7acc5b8SJayamohan Kallickal break; 377c7acc5b8SJayamohan Kallickal default: 378c7acc5b8SJayamohan Kallickal rc = 0; 379c7acc5b8SJayamohan Kallickal break; 380c7acc5b8SJayamohan Kallickal } 381c7acc5b8SJayamohan Kallickal return rc; 382c7acc5b8SJayamohan Kallickal } 383c7acc5b8SJayamohan Kallickal 384bfead3b2SJayamohan Kallickal /*------------------- PCI Driver operations and data ----------------- */ 385bfead3b2SJayamohan Kallickal static DEFINE_PCI_DEVICE_TABLE(beiscsi_pci_id_table) = { 386bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) }, 387f98c96b0SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) }, 388bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) }, 389bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) }, 390bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) }, 391bfead3b2SJayamohan Kallickal { 0 } 392bfead3b2SJayamohan Kallickal }; 393bfead3b2SJayamohan Kallickal MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table); 394bfead3b2SJayamohan Kallickal 3956733b39aSJayamohan Kallickal static struct scsi_host_template beiscsi_sht = { 3966733b39aSJayamohan Kallickal .module = THIS_MODULE, 3976733b39aSJayamohan Kallickal .name = "ServerEngines 10Gbe open-iscsi Initiator Driver", 3986733b39aSJayamohan Kallickal .proc_name = DRV_NAME, 3996733b39aSJayamohan Kallickal .queuecommand = iscsi_queuecommand, 4006733b39aSJayamohan Kallickal .change_queue_depth = iscsi_change_queue_depth, 4016733b39aSJayamohan Kallickal .slave_configure = beiscsi_slave_configure, 4026733b39aSJayamohan Kallickal .target_alloc = iscsi_target_alloc, 4034183122dSJayamohan Kallickal .eh_abort_handler = beiscsi_eh_abort, 4044183122dSJayamohan Kallickal .eh_device_reset_handler = beiscsi_eh_device_reset, 405309ce156SJayamohan Kallickal .eh_target_reset_handler = iscsi_eh_session_reset, 4066733b39aSJayamohan Kallickal .sg_tablesize = BEISCSI_SGLIST_ELEMENTS, 4076733b39aSJayamohan Kallickal .can_queue = BE2_IO_DEPTH, 4086733b39aSJayamohan Kallickal .this_id = -1, 4096733b39aSJayamohan Kallickal .max_sectors = BEISCSI_MAX_SECTORS, 4106733b39aSJayamohan Kallickal .cmd_per_lun = BEISCSI_CMD_PER_LUN, 4116733b39aSJayamohan Kallickal .use_clustering = ENABLE_CLUSTERING, 4126733b39aSJayamohan Kallickal }; 4136733b39aSJayamohan Kallickal 414bfead3b2SJayamohan Kallickal static struct scsi_transport_template *beiscsi_scsi_transport; 4156733b39aSJayamohan Kallickal 4166733b39aSJayamohan Kallickal static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev) 4176733b39aSJayamohan Kallickal { 4186733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 4196733b39aSJayamohan Kallickal struct Scsi_Host *shost; 4206733b39aSJayamohan Kallickal 4216733b39aSJayamohan Kallickal shost = iscsi_host_alloc(&beiscsi_sht, sizeof(*phba), 0); 4226733b39aSJayamohan Kallickal if (!shost) { 4236733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_hba_alloc -" 4246733b39aSJayamohan Kallickal "iscsi_host_alloc failed\n"); 4256733b39aSJayamohan Kallickal return NULL; 4266733b39aSJayamohan Kallickal } 4276733b39aSJayamohan Kallickal shost->dma_boundary = pcidev->dma_mask; 4286733b39aSJayamohan Kallickal shost->max_id = BE2_MAX_SESSIONS; 4296733b39aSJayamohan Kallickal shost->max_channel = 0; 4306733b39aSJayamohan Kallickal shost->max_cmd_len = BEISCSI_MAX_CMD_LEN; 4316733b39aSJayamohan Kallickal shost->max_lun = BEISCSI_NUM_MAX_LUN; 4326733b39aSJayamohan Kallickal shost->transportt = beiscsi_scsi_transport; 4336733b39aSJayamohan Kallickal phba = iscsi_host_priv(shost); 4346733b39aSJayamohan Kallickal memset(phba, 0, sizeof(*phba)); 4356733b39aSJayamohan Kallickal phba->shost = shost; 4366733b39aSJayamohan Kallickal phba->pcidev = pci_dev_get(pcidev); 4372807afb7SJayamohan Kallickal pci_set_drvdata(pcidev, phba); 4386733b39aSJayamohan Kallickal 4396733b39aSJayamohan Kallickal if (iscsi_host_add(shost, &phba->pcidev->dev)) 4406733b39aSJayamohan Kallickal goto free_devices; 441c7acc5b8SJayamohan Kallickal 4426733b39aSJayamohan Kallickal return phba; 4436733b39aSJayamohan Kallickal 4446733b39aSJayamohan Kallickal free_devices: 4456733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 4466733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 4476733b39aSJayamohan Kallickal return NULL; 4486733b39aSJayamohan Kallickal } 4496733b39aSJayamohan Kallickal 4506733b39aSJayamohan Kallickal static void beiscsi_unmap_pci_function(struct beiscsi_hba *phba) 4516733b39aSJayamohan Kallickal { 4526733b39aSJayamohan Kallickal if (phba->csr_va) { 4536733b39aSJayamohan Kallickal iounmap(phba->csr_va); 4546733b39aSJayamohan Kallickal phba->csr_va = NULL; 4556733b39aSJayamohan Kallickal } 4566733b39aSJayamohan Kallickal if (phba->db_va) { 4576733b39aSJayamohan Kallickal iounmap(phba->db_va); 4586733b39aSJayamohan Kallickal phba->db_va = NULL; 4596733b39aSJayamohan Kallickal } 4606733b39aSJayamohan Kallickal if (phba->pci_va) { 4616733b39aSJayamohan Kallickal iounmap(phba->pci_va); 4626733b39aSJayamohan Kallickal phba->pci_va = NULL; 4636733b39aSJayamohan Kallickal } 4646733b39aSJayamohan Kallickal } 4656733b39aSJayamohan Kallickal 4666733b39aSJayamohan Kallickal static int beiscsi_map_pci_bars(struct beiscsi_hba *phba, 4676733b39aSJayamohan Kallickal struct pci_dev *pcidev) 4686733b39aSJayamohan Kallickal { 4696733b39aSJayamohan Kallickal u8 __iomem *addr; 470f98c96b0SJayamohan Kallickal int pcicfg_reg; 4716733b39aSJayamohan Kallickal 4726733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 2), 4736733b39aSJayamohan Kallickal pci_resource_len(pcidev, 2)); 4746733b39aSJayamohan Kallickal if (addr == NULL) 4756733b39aSJayamohan Kallickal return -ENOMEM; 4766733b39aSJayamohan Kallickal phba->ctrl.csr = addr; 4776733b39aSJayamohan Kallickal phba->csr_va = addr; 4786733b39aSJayamohan Kallickal phba->csr_pa.u.a64.address = pci_resource_start(pcidev, 2); 4796733b39aSJayamohan Kallickal 4806733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 4), 128 * 1024); 4816733b39aSJayamohan Kallickal if (addr == NULL) 4826733b39aSJayamohan Kallickal goto pci_map_err; 4836733b39aSJayamohan Kallickal phba->ctrl.db = addr; 4846733b39aSJayamohan Kallickal phba->db_va = addr; 4856733b39aSJayamohan Kallickal phba->db_pa.u.a64.address = pci_resource_start(pcidev, 4); 4866733b39aSJayamohan Kallickal 487f98c96b0SJayamohan Kallickal if (phba->generation == BE_GEN2) 488f98c96b0SJayamohan Kallickal pcicfg_reg = 1; 489f98c96b0SJayamohan Kallickal else 490f98c96b0SJayamohan Kallickal pcicfg_reg = 0; 491f98c96b0SJayamohan Kallickal 492f98c96b0SJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, pcicfg_reg), 493f98c96b0SJayamohan Kallickal pci_resource_len(pcidev, pcicfg_reg)); 494f98c96b0SJayamohan Kallickal 4956733b39aSJayamohan Kallickal if (addr == NULL) 4966733b39aSJayamohan Kallickal goto pci_map_err; 4976733b39aSJayamohan Kallickal phba->ctrl.pcicfg = addr; 4986733b39aSJayamohan Kallickal phba->pci_va = addr; 499f98c96b0SJayamohan Kallickal phba->pci_pa.u.a64.address = pci_resource_start(pcidev, pcicfg_reg); 5006733b39aSJayamohan Kallickal return 0; 5016733b39aSJayamohan Kallickal 5026733b39aSJayamohan Kallickal pci_map_err: 5036733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 5046733b39aSJayamohan Kallickal return -ENOMEM; 5056733b39aSJayamohan Kallickal } 5066733b39aSJayamohan Kallickal 5076733b39aSJayamohan Kallickal static int beiscsi_enable_pci(struct pci_dev *pcidev) 5086733b39aSJayamohan Kallickal { 5096733b39aSJayamohan Kallickal int ret; 5106733b39aSJayamohan Kallickal 5116733b39aSJayamohan Kallickal ret = pci_enable_device(pcidev); 5126733b39aSJayamohan Kallickal if (ret) { 5136733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_enable_pci - enable device " 5146733b39aSJayamohan Kallickal "failed. Returning -ENODEV\n"); 5156733b39aSJayamohan Kallickal return ret; 5166733b39aSJayamohan Kallickal } 5176733b39aSJayamohan Kallickal 518bfead3b2SJayamohan Kallickal pci_set_master(pcidev); 5196733b39aSJayamohan Kallickal if (pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64))) { 5206733b39aSJayamohan Kallickal ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32)); 5216733b39aSJayamohan Kallickal if (ret) { 5226733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n"); 5236733b39aSJayamohan Kallickal pci_disable_device(pcidev); 5246733b39aSJayamohan Kallickal return ret; 5256733b39aSJayamohan Kallickal } 5266733b39aSJayamohan Kallickal } 5276733b39aSJayamohan Kallickal return 0; 5286733b39aSJayamohan Kallickal } 5296733b39aSJayamohan Kallickal 5306733b39aSJayamohan Kallickal static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev) 5316733b39aSJayamohan Kallickal { 5326733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 5336733b39aSJayamohan Kallickal struct be_dma_mem *mbox_mem_alloc = &ctrl->mbox_mem_alloced; 5346733b39aSJayamohan Kallickal struct be_dma_mem *mbox_mem_align = &ctrl->mbox_mem; 5356733b39aSJayamohan Kallickal int status = 0; 5366733b39aSJayamohan Kallickal 5376733b39aSJayamohan Kallickal ctrl->pdev = pdev; 5386733b39aSJayamohan Kallickal status = beiscsi_map_pci_bars(phba, pdev); 5396733b39aSJayamohan Kallickal if (status) 5406733b39aSJayamohan Kallickal return status; 5416733b39aSJayamohan Kallickal mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16; 5426733b39aSJayamohan Kallickal mbox_mem_alloc->va = pci_alloc_consistent(pdev, 5436733b39aSJayamohan Kallickal mbox_mem_alloc->size, 5446733b39aSJayamohan Kallickal &mbox_mem_alloc->dma); 5456733b39aSJayamohan Kallickal if (!mbox_mem_alloc->va) { 5466733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 5476733b39aSJayamohan Kallickal status = -ENOMEM; 5486733b39aSJayamohan Kallickal return status; 5496733b39aSJayamohan Kallickal } 5506733b39aSJayamohan Kallickal 5516733b39aSJayamohan Kallickal mbox_mem_align->size = sizeof(struct be_mcc_mailbox); 5526733b39aSJayamohan Kallickal mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16); 5536733b39aSJayamohan Kallickal mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16); 5546733b39aSJayamohan Kallickal memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox)); 5556733b39aSJayamohan Kallickal spin_lock_init(&ctrl->mbox_lock); 556bfead3b2SJayamohan Kallickal spin_lock_init(&phba->ctrl.mcc_lock); 557bfead3b2SJayamohan Kallickal spin_lock_init(&phba->ctrl.mcc_cq_lock); 558bfead3b2SJayamohan Kallickal 5596733b39aSJayamohan Kallickal return status; 5606733b39aSJayamohan Kallickal } 5616733b39aSJayamohan Kallickal 5626733b39aSJayamohan Kallickal static void beiscsi_get_params(struct beiscsi_hba *phba) 5636733b39aSJayamohan Kallickal { 5647da50879SJayamohan Kallickal phba->params.ios_per_ctrl = (phba->fw_config.iscsi_icd_count 5657da50879SJayamohan Kallickal - (phba->fw_config.iscsi_cid_count 5667da50879SJayamohan Kallickal + BE2_TMFS 5677da50879SJayamohan Kallickal + BE2_NOPOUT_REQ)); 5687da50879SJayamohan Kallickal phba->params.cxns_per_ctrl = phba->fw_config.iscsi_cid_count; 569ed58ea2aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl = phba->fw_config.iscsi_cid_count * 2; 5706eab04a8SJustin P. Mattock phba->params.icds_per_ctrl = phba->fw_config.iscsi_icd_count; 5716733b39aSJayamohan Kallickal phba->params.num_sge_per_io = BE2_SGE; 5726733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz = BE2_DEFPDU_HDR_SZ; 5736733b39aSJayamohan Kallickal phba->params.defpdu_data_sz = BE2_DEFPDU_DATA_SZ; 5746733b39aSJayamohan Kallickal phba->params.eq_timer = 64; 5756733b39aSJayamohan Kallickal phba->params.num_eq_entries = 5767da50879SJayamohan Kallickal (((BE2_CMDS_PER_CXN * 2 + phba->fw_config.iscsi_cid_count * 2 5777da50879SJayamohan Kallickal + BE2_TMFS) / 512) + 1) * 512; 5786733b39aSJayamohan Kallickal phba->params.num_eq_entries = (phba->params.num_eq_entries < 1024) 5796733b39aSJayamohan Kallickal ? 1024 : phba->params.num_eq_entries; 5806733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "phba->params.num_eq_entries=%d\n", 5816733b39aSJayamohan Kallickal phba->params.num_eq_entries); 5826733b39aSJayamohan Kallickal phba->params.num_cq_entries = 5837da50879SJayamohan Kallickal (((BE2_CMDS_PER_CXN * 2 + phba->fw_config.iscsi_cid_count * 2 5847da50879SJayamohan Kallickal + BE2_TMFS) / 512) + 1) * 512; 5856733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn = 256; 5866733b39aSJayamohan Kallickal } 5876733b39aSJayamohan Kallickal 5886733b39aSJayamohan Kallickal static void hwi_ring_eq_db(struct beiscsi_hba *phba, 5896733b39aSJayamohan Kallickal unsigned int id, unsigned int clr_interrupt, 5906733b39aSJayamohan Kallickal unsigned int num_processed, 5916733b39aSJayamohan Kallickal unsigned char rearm, unsigned char event) 5926733b39aSJayamohan Kallickal { 5936733b39aSJayamohan Kallickal u32 val = 0; 5946733b39aSJayamohan Kallickal val |= id & DB_EQ_RING_ID_MASK; 5956733b39aSJayamohan Kallickal if (rearm) 5966733b39aSJayamohan Kallickal val |= 1 << DB_EQ_REARM_SHIFT; 5976733b39aSJayamohan Kallickal if (clr_interrupt) 5986733b39aSJayamohan Kallickal val |= 1 << DB_EQ_CLR_SHIFT; 5996733b39aSJayamohan Kallickal if (event) 6006733b39aSJayamohan Kallickal val |= 1 << DB_EQ_EVNT_SHIFT; 6016733b39aSJayamohan Kallickal val |= num_processed << DB_EQ_NUM_POPPED_SHIFT; 6026733b39aSJayamohan Kallickal iowrite32(val, phba->db_va + DB_EQ_OFFSET); 6036733b39aSJayamohan Kallickal } 6046733b39aSJayamohan Kallickal 6056733b39aSJayamohan Kallickal /** 606bfead3b2SJayamohan Kallickal * be_isr_mcc - The isr routine of the driver. 607bfead3b2SJayamohan Kallickal * @irq: Not used 608bfead3b2SJayamohan Kallickal * @dev_id: Pointer to host adapter structure 609bfead3b2SJayamohan Kallickal */ 610bfead3b2SJayamohan Kallickal static irqreturn_t be_isr_mcc(int irq, void *dev_id) 611bfead3b2SJayamohan Kallickal { 612bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 613bfead3b2SJayamohan Kallickal struct be_eq_entry *eqe = NULL; 614bfead3b2SJayamohan Kallickal struct be_queue_info *eq; 615bfead3b2SJayamohan Kallickal struct be_queue_info *mcc; 616bfead3b2SJayamohan Kallickal unsigned int num_eq_processed; 617bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 618bfead3b2SJayamohan Kallickal unsigned long flags; 619bfead3b2SJayamohan Kallickal 620bfead3b2SJayamohan Kallickal pbe_eq = dev_id; 621bfead3b2SJayamohan Kallickal eq = &pbe_eq->q; 622bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 623bfead3b2SJayamohan Kallickal mcc = &phba->ctrl.mcc_obj.cq; 624bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 625bfead3b2SJayamohan Kallickal if (!eqe) 626bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "eqe is NULL\n"); 627bfead3b2SJayamohan Kallickal 628bfead3b2SJayamohan Kallickal num_eq_processed = 0; 629bfead3b2SJayamohan Kallickal 630bfead3b2SJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 631bfead3b2SJayamohan Kallickal & EQE_VALID_MASK) { 632bfead3b2SJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 633bfead3b2SJayamohan Kallickal resource_id) / 32] & 634bfead3b2SJayamohan Kallickal EQE_RESID_MASK) >> 16) == mcc->id) { 635bfead3b2SJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 636bfead3b2SJayamohan Kallickal phba->todo_mcc_cq = 1; 637bfead3b2SJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 638bfead3b2SJayamohan Kallickal } 639bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 640bfead3b2SJayamohan Kallickal queue_tail_inc(eq); 641bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 642bfead3b2SJayamohan Kallickal num_eq_processed++; 643bfead3b2SJayamohan Kallickal } 644bfead3b2SJayamohan Kallickal if (phba->todo_mcc_cq) 645bfead3b2SJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 646bfead3b2SJayamohan Kallickal if (num_eq_processed) 647bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 1, 1); 648bfead3b2SJayamohan Kallickal 649bfead3b2SJayamohan Kallickal return IRQ_HANDLED; 650bfead3b2SJayamohan Kallickal } 651bfead3b2SJayamohan Kallickal 652bfead3b2SJayamohan Kallickal /** 653bfead3b2SJayamohan Kallickal * be_isr_msix - The isr routine of the driver. 654bfead3b2SJayamohan Kallickal * @irq: Not used 655bfead3b2SJayamohan Kallickal * @dev_id: Pointer to host adapter structure 656bfead3b2SJayamohan Kallickal */ 657bfead3b2SJayamohan Kallickal static irqreturn_t be_isr_msix(int irq, void *dev_id) 658bfead3b2SJayamohan Kallickal { 659bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 660bfead3b2SJayamohan Kallickal struct be_eq_entry *eqe = NULL; 661bfead3b2SJayamohan Kallickal struct be_queue_info *eq; 662bfead3b2SJayamohan Kallickal struct be_queue_info *cq; 663bfead3b2SJayamohan Kallickal unsigned int num_eq_processed; 664bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 665bfead3b2SJayamohan Kallickal unsigned long flags; 666bfead3b2SJayamohan Kallickal 667bfead3b2SJayamohan Kallickal pbe_eq = dev_id; 668bfead3b2SJayamohan Kallickal eq = &pbe_eq->q; 669bfead3b2SJayamohan Kallickal cq = pbe_eq->cq; 670bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 671bfead3b2SJayamohan Kallickal if (!eqe) 672bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "eqe is NULL\n"); 673bfead3b2SJayamohan Kallickal 674bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 675bfead3b2SJayamohan Kallickal num_eq_processed = 0; 676bfead3b2SJayamohan Kallickal if (blk_iopoll_enabled) { 677bfead3b2SJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 678bfead3b2SJayamohan Kallickal & EQE_VALID_MASK) { 679bfead3b2SJayamohan Kallickal if (!blk_iopoll_sched_prep(&pbe_eq->iopoll)) 680bfead3b2SJayamohan Kallickal blk_iopoll_sched(&pbe_eq->iopoll); 681bfead3b2SJayamohan Kallickal 682bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 683bfead3b2SJayamohan Kallickal queue_tail_inc(eq); 684bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 685bfead3b2SJayamohan Kallickal num_eq_processed++; 686bfead3b2SJayamohan Kallickal } 687bfead3b2SJayamohan Kallickal if (num_eq_processed) 688bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 0, 1); 689bfead3b2SJayamohan Kallickal 690bfead3b2SJayamohan Kallickal return IRQ_HANDLED; 691bfead3b2SJayamohan Kallickal } else { 692bfead3b2SJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 693bfead3b2SJayamohan Kallickal & EQE_VALID_MASK) { 694bfead3b2SJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 695bfead3b2SJayamohan Kallickal phba->todo_cq = 1; 696bfead3b2SJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 697bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 698bfead3b2SJayamohan Kallickal queue_tail_inc(eq); 699bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 700bfead3b2SJayamohan Kallickal num_eq_processed++; 701bfead3b2SJayamohan Kallickal } 702bfead3b2SJayamohan Kallickal if (phba->todo_cq) 703bfead3b2SJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 704bfead3b2SJayamohan Kallickal 705bfead3b2SJayamohan Kallickal if (num_eq_processed) 706bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 1, 1); 707bfead3b2SJayamohan Kallickal 708bfead3b2SJayamohan Kallickal return IRQ_HANDLED; 709bfead3b2SJayamohan Kallickal } 710bfead3b2SJayamohan Kallickal } 711bfead3b2SJayamohan Kallickal 712bfead3b2SJayamohan Kallickal /** 7136733b39aSJayamohan Kallickal * be_isr - The isr routine of the driver. 7146733b39aSJayamohan Kallickal * @irq: Not used 7156733b39aSJayamohan Kallickal * @dev_id: Pointer to host adapter structure 7166733b39aSJayamohan Kallickal */ 7176733b39aSJayamohan Kallickal static irqreturn_t be_isr(int irq, void *dev_id) 7186733b39aSJayamohan Kallickal { 7196733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 7206733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 7216733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 7226733b39aSJayamohan Kallickal struct be_eq_entry *eqe = NULL; 7236733b39aSJayamohan Kallickal struct be_queue_info *eq; 7246733b39aSJayamohan Kallickal struct be_queue_info *cq; 725bfead3b2SJayamohan Kallickal struct be_queue_info *mcc; 7266733b39aSJayamohan Kallickal unsigned long flags, index; 727bfead3b2SJayamohan Kallickal unsigned int num_mcceq_processed, num_ioeq_processed; 7286733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl; 729bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 7306733b39aSJayamohan Kallickal int isr; 7316733b39aSJayamohan Kallickal 7326733b39aSJayamohan Kallickal phba = dev_id; 7336eab04a8SJustin P. Mattock ctrl = &phba->ctrl; 7346733b39aSJayamohan Kallickal isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET + 7356733b39aSJayamohan Kallickal (PCI_FUNC(ctrl->pdev->devfn) * CEV_ISR_SIZE)); 7366733b39aSJayamohan Kallickal if (!isr) 7376733b39aSJayamohan Kallickal return IRQ_NONE; 7386733b39aSJayamohan Kallickal 7396733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 7406733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 741bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[0]; 742bfead3b2SJayamohan Kallickal 743bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[0].q; 744bfead3b2SJayamohan Kallickal mcc = &phba->ctrl.mcc_obj.cq; 7456733b39aSJayamohan Kallickal index = 0; 7466733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 7476733b39aSJayamohan Kallickal if (!eqe) 7486733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "eqe is NULL\n"); 7496733b39aSJayamohan Kallickal 750bfead3b2SJayamohan Kallickal num_ioeq_processed = 0; 751bfead3b2SJayamohan Kallickal num_mcceq_processed = 0; 7526733b39aSJayamohan Kallickal if (blk_iopoll_enabled) { 7536733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 7546733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 755bfead3b2SJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 756bfead3b2SJayamohan Kallickal resource_id) / 32] & 757bfead3b2SJayamohan Kallickal EQE_RESID_MASK) >> 16) == mcc->id) { 758bfead3b2SJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 759bfead3b2SJayamohan Kallickal phba->todo_mcc_cq = 1; 760bfead3b2SJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 761bfead3b2SJayamohan Kallickal num_mcceq_processed++; 762bfead3b2SJayamohan Kallickal } else { 763bfead3b2SJayamohan Kallickal if (!blk_iopoll_sched_prep(&pbe_eq->iopoll)) 764bfead3b2SJayamohan Kallickal blk_iopoll_sched(&pbe_eq->iopoll); 765bfead3b2SJayamohan Kallickal num_ioeq_processed++; 766bfead3b2SJayamohan Kallickal } 7676733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 7686733b39aSJayamohan Kallickal queue_tail_inc(eq); 7696733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 7706733b39aSJayamohan Kallickal } 771bfead3b2SJayamohan Kallickal if (num_ioeq_processed || num_mcceq_processed) { 772bfead3b2SJayamohan Kallickal if (phba->todo_mcc_cq) 773bfead3b2SJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 774bfead3b2SJayamohan Kallickal 775bfead3b2SJayamohan Kallickal if ((num_mcceq_processed) && (!num_ioeq_processed)) 776bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 777bfead3b2SJayamohan Kallickal (num_ioeq_processed + 778bfead3b2SJayamohan Kallickal num_mcceq_processed) , 1, 1); 779bfead3b2SJayamohan Kallickal else 780bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 781bfead3b2SJayamohan Kallickal (num_ioeq_processed + 782bfead3b2SJayamohan Kallickal num_mcceq_processed), 0, 1); 783bfead3b2SJayamohan Kallickal 7846733b39aSJayamohan Kallickal return IRQ_HANDLED; 7856733b39aSJayamohan Kallickal } else 7866733b39aSJayamohan Kallickal return IRQ_NONE; 7876733b39aSJayamohan Kallickal } else { 788bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 7896733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 7906733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 7916733b39aSJayamohan Kallickal 7926733b39aSJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 7936733b39aSJayamohan Kallickal resource_id) / 32] & 7946733b39aSJayamohan Kallickal EQE_RESID_MASK) >> 16) != cq->id) { 7956733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 7966733b39aSJayamohan Kallickal phba->todo_mcc_cq = 1; 7976733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 7986733b39aSJayamohan Kallickal } else { 7996733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 8006733b39aSJayamohan Kallickal phba->todo_cq = 1; 8016733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 8026733b39aSJayamohan Kallickal } 8036733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 8046733b39aSJayamohan Kallickal queue_tail_inc(eq); 8056733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 806bfead3b2SJayamohan Kallickal num_ioeq_processed++; 8076733b39aSJayamohan Kallickal } 8086733b39aSJayamohan Kallickal if (phba->todo_cq || phba->todo_mcc_cq) 8096733b39aSJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 8106733b39aSJayamohan Kallickal 811bfead3b2SJayamohan Kallickal if (num_ioeq_processed) { 812bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 813bfead3b2SJayamohan Kallickal num_ioeq_processed, 1, 1); 8146733b39aSJayamohan Kallickal return IRQ_HANDLED; 8156733b39aSJayamohan Kallickal } else 8166733b39aSJayamohan Kallickal return IRQ_NONE; 8176733b39aSJayamohan Kallickal } 8186733b39aSJayamohan Kallickal } 8196733b39aSJayamohan Kallickal 8206733b39aSJayamohan Kallickal static int beiscsi_init_irqs(struct beiscsi_hba *phba) 8216733b39aSJayamohan Kallickal { 8226733b39aSJayamohan Kallickal struct pci_dev *pcidev = phba->pcidev; 823bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 824bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 8254f5af07eSJayamohan Kallickal int ret, msix_vec, i, j; 8266733b39aSJayamohan Kallickal 827bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 828bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 829bfead3b2SJayamohan Kallickal 830bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 831bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 8328fcfb210SJayamohan Kallickal phba->msi_name[i] = kzalloc(BEISCSI_MSI_NAME, 8338fcfb210SJayamohan Kallickal GFP_KERNEL); 8348fcfb210SJayamohan Kallickal if (!phba->msi_name[i]) { 8358fcfb210SJayamohan Kallickal ret = -ENOMEM; 8368fcfb210SJayamohan Kallickal goto free_msix_irqs; 8378fcfb210SJayamohan Kallickal } 8388fcfb210SJayamohan Kallickal 8398fcfb210SJayamohan Kallickal sprintf(phba->msi_name[i], "beiscsi_%02x_%02x", 8408fcfb210SJayamohan Kallickal phba->shost->host_no, i); 841bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 8428fcfb210SJayamohan Kallickal ret = request_irq(msix_vec, be_isr_msix, 0, 8438fcfb210SJayamohan Kallickal phba->msi_name[i], 844bfead3b2SJayamohan Kallickal &phwi_context->be_eq[i]); 8454f5af07eSJayamohan Kallickal if (ret) { 8464f5af07eSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 8474f5af07eSJayamohan Kallickal "beiscsi_init_irqs-Failed to" 8484f5af07eSJayamohan Kallickal "register msix for i = %d\n", i); 8498fcfb210SJayamohan Kallickal kfree(phba->msi_name[i]); 8504f5af07eSJayamohan Kallickal goto free_msix_irqs; 8514f5af07eSJayamohan Kallickal } 852bfead3b2SJayamohan Kallickal } 8538fcfb210SJayamohan Kallickal phba->msi_name[i] = kzalloc(BEISCSI_MSI_NAME, GFP_KERNEL); 8548fcfb210SJayamohan Kallickal if (!phba->msi_name[i]) { 8558fcfb210SJayamohan Kallickal ret = -ENOMEM; 8568fcfb210SJayamohan Kallickal goto free_msix_irqs; 8578fcfb210SJayamohan Kallickal } 8588fcfb210SJayamohan Kallickal sprintf(phba->msi_name[i], "beiscsi_mcc_%02x", 8598fcfb210SJayamohan Kallickal phba->shost->host_no); 860bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 8618fcfb210SJayamohan Kallickal ret = request_irq(msix_vec, be_isr_mcc, 0, phba->msi_name[i], 862bfead3b2SJayamohan Kallickal &phwi_context->be_eq[i]); 8634f5af07eSJayamohan Kallickal if (ret) { 8644f5af07eSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_init_irqs-" 8654f5af07eSJayamohan Kallickal "Failed to register beiscsi_msix_mcc\n"); 8668fcfb210SJayamohan Kallickal kfree(phba->msi_name[i]); 8674f5af07eSJayamohan Kallickal goto free_msix_irqs; 8684f5af07eSJayamohan Kallickal } 8694f5af07eSJayamohan Kallickal 870bfead3b2SJayamohan Kallickal } else { 871bfead3b2SJayamohan Kallickal ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED, 872bfead3b2SJayamohan Kallickal "beiscsi", phba); 8736733b39aSJayamohan Kallickal if (ret) { 8746733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_init_irqs-" 8756733b39aSJayamohan Kallickal "Failed to register irq\\n"); 8766733b39aSJayamohan Kallickal return ret; 8776733b39aSJayamohan Kallickal } 878bfead3b2SJayamohan Kallickal } 8796733b39aSJayamohan Kallickal return 0; 8804f5af07eSJayamohan Kallickal free_msix_irqs: 8818fcfb210SJayamohan Kallickal for (j = i - 1; j >= 0; j--) { 8828fcfb210SJayamohan Kallickal kfree(phba->msi_name[j]); 8838fcfb210SJayamohan Kallickal msix_vec = phba->msix_entries[j].vector; 8844f5af07eSJayamohan Kallickal free_irq(msix_vec, &phwi_context->be_eq[j]); 8858fcfb210SJayamohan Kallickal } 8864f5af07eSJayamohan Kallickal return ret; 8876733b39aSJayamohan Kallickal } 8886733b39aSJayamohan Kallickal 8896733b39aSJayamohan Kallickal static void hwi_ring_cq_db(struct beiscsi_hba *phba, 8906733b39aSJayamohan Kallickal unsigned int id, unsigned int num_processed, 8916733b39aSJayamohan Kallickal unsigned char rearm, unsigned char event) 8926733b39aSJayamohan Kallickal { 8936733b39aSJayamohan Kallickal u32 val = 0; 8946733b39aSJayamohan Kallickal val |= id & DB_CQ_RING_ID_MASK; 8956733b39aSJayamohan Kallickal if (rearm) 8966733b39aSJayamohan Kallickal val |= 1 << DB_CQ_REARM_SHIFT; 8976733b39aSJayamohan Kallickal val |= num_processed << DB_CQ_NUM_POPPED_SHIFT; 8986733b39aSJayamohan Kallickal iowrite32(val, phba->db_va + DB_CQ_OFFSET); 8996733b39aSJayamohan Kallickal } 9006733b39aSJayamohan Kallickal 9016733b39aSJayamohan Kallickal static unsigned int 9026733b39aSJayamohan Kallickal beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn, 9036733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 9046733b39aSJayamohan Kallickal unsigned short cid, 9056733b39aSJayamohan Kallickal struct pdu_base *ppdu, 9066733b39aSJayamohan Kallickal unsigned long pdu_len, 9076733b39aSJayamohan Kallickal void *pbuffer, unsigned long buf_len) 9086733b39aSJayamohan Kallickal { 9096733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 9106733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 911bfead3b2SJayamohan Kallickal struct iscsi_task *task; 912bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task; 913bfead3b2SJayamohan Kallickal struct iscsi_hdr *login_hdr; 9146733b39aSJayamohan Kallickal 9156733b39aSJayamohan Kallickal switch (ppdu->dw[offsetof(struct amap_pdu_base, opcode) / 32] & 9166733b39aSJayamohan Kallickal PDUBASE_OPCODE_MASK) { 9176733b39aSJayamohan Kallickal case ISCSI_OP_NOOP_IN: 9186733b39aSJayamohan Kallickal pbuffer = NULL; 9196733b39aSJayamohan Kallickal buf_len = 0; 9206733b39aSJayamohan Kallickal break; 9216733b39aSJayamohan Kallickal case ISCSI_OP_ASYNC_EVENT: 9226733b39aSJayamohan Kallickal break; 9236733b39aSJayamohan Kallickal case ISCSI_OP_REJECT: 9246733b39aSJayamohan Kallickal WARN_ON(!pbuffer); 9256733b39aSJayamohan Kallickal WARN_ON(!(buf_len == 48)); 9266733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "In ISCSI_OP_REJECT\n"); 9276733b39aSJayamohan Kallickal break; 9286733b39aSJayamohan Kallickal case ISCSI_OP_LOGIN_RSP: 9297bd6e25cSJayamohan Kallickal case ISCSI_OP_TEXT_RSP: 930bfead3b2SJayamohan Kallickal task = conn->login_task; 931bfead3b2SJayamohan Kallickal io_task = task->dd_data; 932bfead3b2SJayamohan Kallickal login_hdr = (struct iscsi_hdr *)ppdu; 933bfead3b2SJayamohan Kallickal login_hdr->itt = io_task->libiscsi_itt; 9346733b39aSJayamohan Kallickal break; 9356733b39aSJayamohan Kallickal default: 9366733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 9376733b39aSJayamohan Kallickal "Unrecognized opcode 0x%x in async msg\n", 9386733b39aSJayamohan Kallickal (ppdu-> 9396733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_base, opcode) / 32] 9406733b39aSJayamohan Kallickal & PDUBASE_OPCODE_MASK)); 9416733b39aSJayamohan Kallickal return 1; 9426733b39aSJayamohan Kallickal } 9436733b39aSJayamohan Kallickal 9446733b39aSJayamohan Kallickal spin_lock_bh(&session->lock); 9456733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)ppdu, pbuffer, buf_len); 9466733b39aSJayamohan Kallickal spin_unlock_bh(&session->lock); 9476733b39aSJayamohan Kallickal return 0; 9486733b39aSJayamohan Kallickal } 9496733b39aSJayamohan Kallickal 9506733b39aSJayamohan Kallickal static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba) 9516733b39aSJayamohan Kallickal { 9526733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 9536733b39aSJayamohan Kallickal 9546733b39aSJayamohan Kallickal if (phba->io_sgl_hndl_avbl) { 9556733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 9566733b39aSJayamohan Kallickal "In alloc_io_sgl_handle,io_sgl_alloc_index=%d\n", 9576733b39aSJayamohan Kallickal phba->io_sgl_alloc_index); 9586733b39aSJayamohan Kallickal psgl_handle = phba->io_sgl_hndl_base[phba-> 9596733b39aSJayamohan Kallickal io_sgl_alloc_index]; 9606733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_alloc_index] = NULL; 9616733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl--; 962bfead3b2SJayamohan Kallickal if (phba->io_sgl_alloc_index == (phba->params. 963bfead3b2SJayamohan Kallickal ios_per_ctrl - 1)) 9646733b39aSJayamohan Kallickal phba->io_sgl_alloc_index = 0; 9656733b39aSJayamohan Kallickal else 9666733b39aSJayamohan Kallickal phba->io_sgl_alloc_index++; 9676733b39aSJayamohan Kallickal } else 9686733b39aSJayamohan Kallickal psgl_handle = NULL; 9696733b39aSJayamohan Kallickal return psgl_handle; 9706733b39aSJayamohan Kallickal } 9716733b39aSJayamohan Kallickal 9726733b39aSJayamohan Kallickal static void 9736733b39aSJayamohan Kallickal free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) 9746733b39aSJayamohan Kallickal { 9756733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "In free_,io_sgl_free_index=%d\n", 9766733b39aSJayamohan Kallickal phba->io_sgl_free_index); 9776733b39aSJayamohan Kallickal if (phba->io_sgl_hndl_base[phba->io_sgl_free_index]) { 9786733b39aSJayamohan Kallickal /* 9796733b39aSJayamohan Kallickal * this can happen if clean_task is called on a task that 9806733b39aSJayamohan Kallickal * failed in xmit_task or alloc_pdu. 9816733b39aSJayamohan Kallickal */ 9826733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 9836733b39aSJayamohan Kallickal "Double Free in IO SGL io_sgl_free_index=%d," 9846733b39aSJayamohan Kallickal "value there=%p\n", phba->io_sgl_free_index, 9856733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_free_index]); 9866733b39aSJayamohan Kallickal return; 9876733b39aSJayamohan Kallickal } 9886733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle; 9896733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl++; 9906733b39aSJayamohan Kallickal if (phba->io_sgl_free_index == (phba->params.ios_per_ctrl - 1)) 9916733b39aSJayamohan Kallickal phba->io_sgl_free_index = 0; 9926733b39aSJayamohan Kallickal else 9936733b39aSJayamohan Kallickal phba->io_sgl_free_index++; 9946733b39aSJayamohan Kallickal } 9956733b39aSJayamohan Kallickal 9966733b39aSJayamohan Kallickal /** 9976733b39aSJayamohan Kallickal * alloc_wrb_handle - To allocate a wrb handle 9986733b39aSJayamohan Kallickal * @phba: The hba pointer 9996733b39aSJayamohan Kallickal * @cid: The cid to use for allocation 10006733b39aSJayamohan Kallickal * 10016733b39aSJayamohan Kallickal * This happens under session_lock until submission to chip 10026733b39aSJayamohan Kallickal */ 1003d5431488SJayamohan Kallickal struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid) 10046733b39aSJayamohan Kallickal { 10056733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 10066733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 1007d5431488SJayamohan Kallickal struct wrb_handle *pwrb_handle, *pwrb_handle_tmp; 10086733b39aSJayamohan Kallickal 10096733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 10106733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cid]; 1011d5431488SJayamohan Kallickal if (pwrb_context->wrb_handles_available >= 2) { 1012bfead3b2SJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[ 1013bfead3b2SJayamohan Kallickal pwrb_context->alloc_index]; 1014bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available--; 1015bfead3b2SJayamohan Kallickal if (pwrb_context->alloc_index == 1016bfead3b2SJayamohan Kallickal (phba->params.wrbs_per_cxn - 1)) 1017bfead3b2SJayamohan Kallickal pwrb_context->alloc_index = 0; 1018bfead3b2SJayamohan Kallickal else 1019bfead3b2SJayamohan Kallickal pwrb_context->alloc_index++; 1020d5431488SJayamohan Kallickal pwrb_handle_tmp = pwrb_context->pwrb_handle_base[ 1021d5431488SJayamohan Kallickal pwrb_context->alloc_index]; 1022d5431488SJayamohan Kallickal pwrb_handle->nxt_wrb_index = pwrb_handle_tmp->wrb_index; 1023bfead3b2SJayamohan Kallickal } else 1024bfead3b2SJayamohan Kallickal pwrb_handle = NULL; 10256733b39aSJayamohan Kallickal return pwrb_handle; 10266733b39aSJayamohan Kallickal } 10276733b39aSJayamohan Kallickal 10286733b39aSJayamohan Kallickal /** 10296733b39aSJayamohan Kallickal * free_wrb_handle - To free the wrb handle back to pool 10306733b39aSJayamohan Kallickal * @phba: The hba pointer 10316733b39aSJayamohan Kallickal * @pwrb_context: The context to free from 10326733b39aSJayamohan Kallickal * @pwrb_handle: The wrb_handle to free 10336733b39aSJayamohan Kallickal * 10346733b39aSJayamohan Kallickal * This happens under session_lock until submission to chip 10356733b39aSJayamohan Kallickal */ 10366733b39aSJayamohan Kallickal static void 10376733b39aSJayamohan Kallickal free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context, 10386733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle) 10396733b39aSJayamohan Kallickal { 104032951dd8SJayamohan Kallickal pwrb_context->pwrb_handle_base[pwrb_context->free_index] = pwrb_handle; 1041bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available++; 1042bfead3b2SJayamohan Kallickal if (pwrb_context->free_index == (phba->params.wrbs_per_cxn - 1)) 1043bfead3b2SJayamohan Kallickal pwrb_context->free_index = 0; 1044bfead3b2SJayamohan Kallickal else 1045bfead3b2SJayamohan Kallickal pwrb_context->free_index++; 1046bfead3b2SJayamohan Kallickal 10476733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 1048bfead3b2SJayamohan Kallickal "FREE WRB: pwrb_handle=%p free_index=0x%x" 10496733b39aSJayamohan Kallickal "wrb_handles_available=%d\n", 10506733b39aSJayamohan Kallickal pwrb_handle, pwrb_context->free_index, 1051bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available); 10526733b39aSJayamohan Kallickal } 10536733b39aSJayamohan Kallickal 10546733b39aSJayamohan Kallickal static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba) 10556733b39aSJayamohan Kallickal { 10566733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 10576733b39aSJayamohan Kallickal 10586733b39aSJayamohan Kallickal if (phba->eh_sgl_hndl_avbl) { 10596733b39aSJayamohan Kallickal psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index]; 10606733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL; 10616733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "mgmt_sgl_alloc_index=%d=0x%x\n", 10626733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index, phba->eh_sgl_alloc_index); 10636733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl--; 10646733b39aSJayamohan Kallickal if (phba->eh_sgl_alloc_index == 10656733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 10666733b39aSJayamohan Kallickal 1)) 10676733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index = 0; 10686733b39aSJayamohan Kallickal else 10696733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index++; 10706733b39aSJayamohan Kallickal } else 10716733b39aSJayamohan Kallickal psgl_handle = NULL; 10726733b39aSJayamohan Kallickal return psgl_handle; 10736733b39aSJayamohan Kallickal } 10746733b39aSJayamohan Kallickal 10756733b39aSJayamohan Kallickal void 10766733b39aSJayamohan Kallickal free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) 10776733b39aSJayamohan Kallickal { 10786733b39aSJayamohan Kallickal 1079bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "In free_mgmt_sgl_handle,eh_sgl_free_index=%d\n", 1080bfead3b2SJayamohan Kallickal phba->eh_sgl_free_index); 10816733b39aSJayamohan Kallickal if (phba->eh_sgl_hndl_base[phba->eh_sgl_free_index]) { 10826733b39aSJayamohan Kallickal /* 10836733b39aSJayamohan Kallickal * this can happen if clean_task is called on a task that 10846733b39aSJayamohan Kallickal * failed in xmit_task or alloc_pdu. 10856733b39aSJayamohan Kallickal */ 10866733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 10876733b39aSJayamohan Kallickal "Double Free in eh SGL ,eh_sgl_free_index=%d\n", 10886733b39aSJayamohan Kallickal phba->eh_sgl_free_index); 10896733b39aSJayamohan Kallickal return; 10906733b39aSJayamohan Kallickal } 10916733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle; 10926733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl++; 10936733b39aSJayamohan Kallickal if (phba->eh_sgl_free_index == 10946733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 1)) 10956733b39aSJayamohan Kallickal phba->eh_sgl_free_index = 0; 10966733b39aSJayamohan Kallickal else 10976733b39aSJayamohan Kallickal phba->eh_sgl_free_index++; 10986733b39aSJayamohan Kallickal } 10996733b39aSJayamohan Kallickal 11006733b39aSJayamohan Kallickal static void 11016733b39aSJayamohan Kallickal be_complete_io(struct beiscsi_conn *beiscsi_conn, 11026733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 11036733b39aSJayamohan Kallickal { 11046733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 11056733b39aSJayamohan Kallickal struct be_status_bhs *sts_bhs = 11066733b39aSJayamohan Kallickal (struct be_status_bhs *)io_task->cmd_bhs; 11076733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 11086733b39aSJayamohan Kallickal unsigned char *sense; 11096733b39aSJayamohan Kallickal u32 resid = 0, exp_cmdsn, max_cmdsn; 11106733b39aSJayamohan Kallickal u8 rsp, status, flags; 11116733b39aSJayamohan Kallickal 1112bfead3b2SJayamohan Kallickal exp_cmdsn = (psol-> 11136733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 11146733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK); 1115bfead3b2SJayamohan Kallickal max_cmdsn = ((psol-> 11166733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 11176733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK) + 11186733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 11196733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 11206733b39aSJayamohan Kallickal rsp = ((psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 32] 11216733b39aSJayamohan Kallickal & SOL_RESP_MASK) >> 16); 11226733b39aSJayamohan Kallickal status = ((psol->dw[offsetof(struct amap_sol_cqe, i_sts) / 32] 11236733b39aSJayamohan Kallickal & SOL_STS_MASK) >> 8); 11246733b39aSJayamohan Kallickal flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 11256733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 1126bd535451SJayamohan Kallickal if (!task->sc) { 1127bd535451SJayamohan Kallickal if (io_task->scsi_cmnd) 1128bd535451SJayamohan Kallickal scsi_dma_unmap(io_task->scsi_cmnd); 11296733b39aSJayamohan Kallickal 1130bd535451SJayamohan Kallickal return; 1131bd535451SJayamohan Kallickal } 11326733b39aSJayamohan Kallickal task->sc->result = (DID_OK << 16) | status; 11336733b39aSJayamohan Kallickal if (rsp != ISCSI_STATUS_CMD_COMPLETED) { 11346733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 11356733b39aSJayamohan Kallickal goto unmap; 11366733b39aSJayamohan Kallickal } 11376733b39aSJayamohan Kallickal 11386733b39aSJayamohan Kallickal /* bidi not initially supported */ 11396733b39aSJayamohan Kallickal if (flags & (ISCSI_FLAG_CMD_UNDERFLOW | ISCSI_FLAG_CMD_OVERFLOW)) { 11406733b39aSJayamohan Kallickal resid = (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 11416733b39aSJayamohan Kallickal 32] & SOL_RES_CNT_MASK); 11426733b39aSJayamohan Kallickal 11436733b39aSJayamohan Kallickal if (!status && (flags & ISCSI_FLAG_CMD_OVERFLOW)) 11446733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 11456733b39aSJayamohan Kallickal 11466733b39aSJayamohan Kallickal if (flags & ISCSI_FLAG_CMD_UNDERFLOW) { 11476733b39aSJayamohan Kallickal scsi_set_resid(task->sc, resid); 11486733b39aSJayamohan Kallickal if (!status && (scsi_bufflen(task->sc) - resid < 11496733b39aSJayamohan Kallickal task->sc->underflow)) 11506733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 11516733b39aSJayamohan Kallickal } 11526733b39aSJayamohan Kallickal } 11536733b39aSJayamohan Kallickal 11546733b39aSJayamohan Kallickal if (status == SAM_STAT_CHECK_CONDITION) { 11554053a4beSDan Carpenter u16 sense_len; 1156bfead3b2SJayamohan Kallickal unsigned short *slen = (unsigned short *)sts_bhs->sense_info; 11574053a4beSDan Carpenter 11586733b39aSJayamohan Kallickal sense = sts_bhs->sense_info + sizeof(unsigned short); 11594053a4beSDan Carpenter sense_len = be16_to_cpu(*slen); 11606733b39aSJayamohan Kallickal memcpy(task->sc->sense_buffer, sense, 11616733b39aSJayamohan Kallickal min_t(u16, sense_len, SCSI_SENSE_BUFFERSIZE)); 11626733b39aSJayamohan Kallickal } 1163756d29c8SJayamohan Kallickal 11646733b39aSJayamohan Kallickal if (io_task->cmd_bhs->iscsi_hdr.flags & ISCSI_FLAG_CMD_READ) { 11656733b39aSJayamohan Kallickal if (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32] 11666733b39aSJayamohan Kallickal & SOL_RES_CNT_MASK) 11676733b39aSJayamohan Kallickal conn->rxdata_octets += (psol-> 11686733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32] 11696733b39aSJayamohan Kallickal & SOL_RES_CNT_MASK); 11706733b39aSJayamohan Kallickal } 11716733b39aSJayamohan Kallickal unmap: 11726733b39aSJayamohan Kallickal scsi_dma_unmap(io_task->scsi_cmnd); 11736733b39aSJayamohan Kallickal iscsi_complete_scsi_task(task, exp_cmdsn, max_cmdsn); 11746733b39aSJayamohan Kallickal } 11756733b39aSJayamohan Kallickal 11766733b39aSJayamohan Kallickal static void 11776733b39aSJayamohan Kallickal be_complete_logout(struct beiscsi_conn *beiscsi_conn, 11786733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 11796733b39aSJayamohan Kallickal { 11806733b39aSJayamohan Kallickal struct iscsi_logout_rsp *hdr; 1181bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 11826733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 11836733b39aSJayamohan Kallickal 11846733b39aSJayamohan Kallickal hdr = (struct iscsi_logout_rsp *)task->hdr; 11857bd6e25cSJayamohan Kallickal hdr->opcode = ISCSI_OP_LOGOUT_RSP; 11866733b39aSJayamohan Kallickal hdr->t2wait = 5; 11876733b39aSJayamohan Kallickal hdr->t2retain = 0; 11886733b39aSJayamohan Kallickal hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 11896733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 11906733b39aSJayamohan Kallickal hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 11916733b39aSJayamohan Kallickal 32] & SOL_RESP_MASK); 11926733b39aSJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(psol-> 11936733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 11946733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK); 11956733b39aSJayamohan Kallickal hdr->max_cmdsn = be32_to_cpu((psol-> 11966733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 11976733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK) + 11986733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 11996733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 12007bd6e25cSJayamohan Kallickal hdr->dlength[0] = 0; 12017bd6e25cSJayamohan Kallickal hdr->dlength[1] = 0; 12027bd6e25cSJayamohan Kallickal hdr->dlength[2] = 0; 12036733b39aSJayamohan Kallickal hdr->hlength = 0; 1204bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 12056733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 12066733b39aSJayamohan Kallickal } 12076733b39aSJayamohan Kallickal 12086733b39aSJayamohan Kallickal static void 12096733b39aSJayamohan Kallickal be_complete_tmf(struct beiscsi_conn *beiscsi_conn, 12106733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 12116733b39aSJayamohan Kallickal { 12126733b39aSJayamohan Kallickal struct iscsi_tm_rsp *hdr; 12136733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 1214bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 12156733b39aSJayamohan Kallickal 12166733b39aSJayamohan Kallickal hdr = (struct iscsi_tm_rsp *)task->hdr; 12177bd6e25cSJayamohan Kallickal hdr->opcode = ISCSI_OP_SCSI_TMFUNC_RSP; 12186733b39aSJayamohan Kallickal hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 12196733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 12206733b39aSJayamohan Kallickal hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 12216733b39aSJayamohan Kallickal 32] & SOL_RESP_MASK); 12226733b39aSJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe, 12236733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK); 12246733b39aSJayamohan Kallickal hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe, 12256733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) + 12266733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 12276733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 1228bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 12296733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 12306733b39aSJayamohan Kallickal } 12316733b39aSJayamohan Kallickal 12326733b39aSJayamohan Kallickal static void 12336733b39aSJayamohan Kallickal hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn, 12346733b39aSJayamohan Kallickal struct beiscsi_hba *phba, struct sol_cqe *psol) 12356733b39aSJayamohan Kallickal { 12366733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 1237bfead3b2SJayamohan Kallickal struct wrb_handle *pwrb_handle = NULL; 12386733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 1239bfead3b2SJayamohan Kallickal struct iscsi_task *task; 1240bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task; 12416733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 12426733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 12436733b39aSJayamohan Kallickal 12446733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 12456733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[((psol-> 12466733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, cid) / 32] & 12477da50879SJayamohan Kallickal SOL_CID_MASK) >> 6) - 12487da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 12496733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol-> 12506733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, wrb_index) / 12516733b39aSJayamohan Kallickal 32] & SOL_WRB_INDEX_MASK) >> 16)]; 1252bfead3b2SJayamohan Kallickal task = pwrb_handle->pio_handle; 125335e66019SJayamohan Kallickal 1254bfead3b2SJayamohan Kallickal io_task = task->dd_data; 1255bfead3b2SJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 1256bfead3b2SJayamohan Kallickal free_mgmt_sgl_handle(phba, io_task->psgl_handle); 1257bfead3b2SJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 12586733b39aSJayamohan Kallickal spin_lock_bh(&session->lock); 12596733b39aSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, pwrb_handle); 12606733b39aSJayamohan Kallickal spin_unlock_bh(&session->lock); 12616733b39aSJayamohan Kallickal } 12626733b39aSJayamohan Kallickal 12636733b39aSJayamohan Kallickal static void 12646733b39aSJayamohan Kallickal be_complete_nopin_resp(struct beiscsi_conn *beiscsi_conn, 12656733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 12666733b39aSJayamohan Kallickal { 12676733b39aSJayamohan Kallickal struct iscsi_nopin *hdr; 12686733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 1269bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 12706733b39aSJayamohan Kallickal 12716733b39aSJayamohan Kallickal hdr = (struct iscsi_nopin *)task->hdr; 12726733b39aSJayamohan Kallickal hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 12736733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 12746733b39aSJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe, 12756733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK); 12766733b39aSJayamohan Kallickal hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe, 12776733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) + 12786733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 12796733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 12806733b39aSJayamohan Kallickal hdr->opcode = ISCSI_OP_NOOP_IN; 1281bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 12826733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 12836733b39aSJayamohan Kallickal } 12846733b39aSJayamohan Kallickal 12856733b39aSJayamohan Kallickal static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn, 12866733b39aSJayamohan Kallickal struct beiscsi_hba *phba, struct sol_cqe *psol) 12876733b39aSJayamohan Kallickal { 12886733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 12896733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 12906733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 12916733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 12926733b39aSJayamohan Kallickal struct iscsi_task *task; 1293bfead3b2SJayamohan Kallickal unsigned int type; 12946733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 12956733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 12966733b39aSJayamohan Kallickal 12976733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 129832951dd8SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[((psol->dw[offsetof 1299bfead3b2SJayamohan Kallickal (struct amap_sol_cqe, cid) / 32] 13007da50879SJayamohan Kallickal & SOL_CID_MASK) >> 6) - 13017da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 13026733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol-> 13036733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, wrb_index) / 13046733b39aSJayamohan Kallickal 32] & SOL_WRB_INDEX_MASK) >> 16)]; 13056733b39aSJayamohan Kallickal task = pwrb_handle->pio_handle; 13066733b39aSJayamohan Kallickal pwrb = pwrb_handle->pwrb; 1307bfead3b2SJayamohan Kallickal type = (pwrb->dw[offsetof(struct amap_iscsi_wrb, type) / 32] & 1308bfead3b2SJayamohan Kallickal WRB_TYPE_MASK) >> 28; 130932951dd8SJayamohan Kallickal 1310bfead3b2SJayamohan Kallickal spin_lock_bh(&session->lock); 1311bfead3b2SJayamohan Kallickal switch (type) { 13126733b39aSJayamohan Kallickal case HWH_TYPE_IO: 13136733b39aSJayamohan Kallickal case HWH_TYPE_IO_RD: 13146733b39aSJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == 1315dafab8e0SJayamohan Kallickal ISCSI_OP_NOOP_OUT) 13166733b39aSJayamohan Kallickal be_complete_nopin_resp(beiscsi_conn, task, psol); 1317dafab8e0SJayamohan Kallickal else 13186733b39aSJayamohan Kallickal be_complete_io(beiscsi_conn, task, psol); 13196733b39aSJayamohan Kallickal break; 13206733b39aSJayamohan Kallickal 13216733b39aSJayamohan Kallickal case HWH_TYPE_LOGOUT: 1322dafab8e0SJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT) 13236733b39aSJayamohan Kallickal be_complete_logout(beiscsi_conn, task, psol); 1324dafab8e0SJayamohan Kallickal else 1325dafab8e0SJayamohan Kallickal be_complete_tmf(beiscsi_conn, task, psol); 1326dafab8e0SJayamohan Kallickal 13276733b39aSJayamohan Kallickal break; 13286733b39aSJayamohan Kallickal 13296733b39aSJayamohan Kallickal case HWH_TYPE_LOGIN: 13306733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 13316733b39aSJayamohan Kallickal "\t\t No HWH_TYPE_LOGIN Expected in hwi_complete_cmd" 13326733b39aSJayamohan Kallickal "- Solicited path\n"); 13336733b39aSJayamohan Kallickal break; 13346733b39aSJayamohan Kallickal 13356733b39aSJayamohan Kallickal case HWH_TYPE_NOP: 13366733b39aSJayamohan Kallickal be_complete_nopin_resp(beiscsi_conn, task, psol); 13376733b39aSJayamohan Kallickal break; 13386733b39aSJayamohan Kallickal 13396733b39aSJayamohan Kallickal default: 13406733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 1341bfead3b2SJayamohan Kallickal "In hwi_complete_cmd, unknown type = %d" 1342bfead3b2SJayamohan Kallickal "wrb_index 0x%x CID 0x%x\n", type, 1343bfead3b2SJayamohan Kallickal ((psol->dw[offsetof(struct amap_iscsi_wrb, 1344bfead3b2SJayamohan Kallickal type) / 32] & SOL_WRB_INDEX_MASK) >> 16), 1345bfead3b2SJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, 1346bfead3b2SJayamohan Kallickal cid) / 32] & SOL_CID_MASK) >> 6)); 13476733b39aSJayamohan Kallickal break; 13486733b39aSJayamohan Kallickal } 134935e66019SJayamohan Kallickal 13506733b39aSJayamohan Kallickal spin_unlock_bh(&session->lock); 13516733b39aSJayamohan Kallickal } 13526733b39aSJayamohan Kallickal 13536733b39aSJayamohan Kallickal static struct list_head *hwi_get_async_busy_list(struct hwi_async_pdu_context 13546733b39aSJayamohan Kallickal *pasync_ctx, unsigned int is_header, 13556733b39aSJayamohan Kallickal unsigned int host_write_ptr) 13566733b39aSJayamohan Kallickal { 13576733b39aSJayamohan Kallickal if (is_header) 13586733b39aSJayamohan Kallickal return &pasync_ctx->async_entry[host_write_ptr]. 13596733b39aSJayamohan Kallickal header_busy_list; 13606733b39aSJayamohan Kallickal else 13616733b39aSJayamohan Kallickal return &pasync_ctx->async_entry[host_write_ptr].data_busy_list; 13626733b39aSJayamohan Kallickal } 13636733b39aSJayamohan Kallickal 13646733b39aSJayamohan Kallickal static struct async_pdu_handle * 13656733b39aSJayamohan Kallickal hwi_get_async_handle(struct beiscsi_hba *phba, 13666733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn, 13676733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, 13686733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe, unsigned int *pcq_index) 13696733b39aSJayamohan Kallickal { 13706733b39aSJayamohan Kallickal struct be_bus_address phys_addr; 13716733b39aSJayamohan Kallickal struct list_head *pbusy_list; 13726733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 13736733b39aSJayamohan Kallickal int buffer_len = 0; 13746733b39aSJayamohan Kallickal unsigned char buffer_index = -1; 13756733b39aSJayamohan Kallickal unsigned char is_header = 0; 13766733b39aSJayamohan Kallickal 13776733b39aSJayamohan Kallickal phys_addr.u.a32.address_lo = 13786733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_lo) / 32] - 13796733b39aSJayamohan Kallickal ((pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32] 13806733b39aSJayamohan Kallickal & PDUCQE_DPL_MASK) >> 16); 13816733b39aSJayamohan Kallickal phys_addr.u.a32.address_hi = 13826733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_hi) / 32]; 13836733b39aSJayamohan Kallickal 13846733b39aSJayamohan Kallickal phys_addr.u.a64.address = 13856733b39aSJayamohan Kallickal *((unsigned long long *)(&phys_addr.u.a64.address)); 13866733b39aSJayamohan Kallickal 13876733b39aSJayamohan Kallickal switch (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, code) / 32] 13886733b39aSJayamohan Kallickal & PDUCQE_CODE_MASK) { 13896733b39aSJayamohan Kallickal case UNSOL_HDR_NOTIFY: 13906733b39aSJayamohan Kallickal is_header = 1; 13916733b39aSJayamohan Kallickal 13926733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, 1, 13936733b39aSJayamohan Kallickal (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 13946733b39aSJayamohan Kallickal index) / 32] & PDUCQE_INDEX_MASK)); 13956733b39aSJayamohan Kallickal 13966733b39aSJayamohan Kallickal buffer_len = (unsigned int)(phys_addr.u.a64.address - 13976733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address); 13986733b39aSJayamohan Kallickal 13996733b39aSJayamohan Kallickal buffer_index = buffer_len / 14006733b39aSJayamohan Kallickal pasync_ctx->async_header.buffer_size; 14016733b39aSJayamohan Kallickal 14026733b39aSJayamohan Kallickal break; 14036733b39aSJayamohan Kallickal case UNSOL_DATA_NOTIFY: 14046733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, 0, (pdpdu_cqe-> 14056733b39aSJayamohan Kallickal dw[offsetof(struct amap_i_t_dpdu_cqe, 14066733b39aSJayamohan Kallickal index) / 32] & PDUCQE_INDEX_MASK)); 14076733b39aSJayamohan Kallickal buffer_len = (unsigned long)(phys_addr.u.a64.address - 14086733b39aSJayamohan Kallickal pasync_ctx->async_data.pa_base.u. 14096733b39aSJayamohan Kallickal a64.address); 14106733b39aSJayamohan Kallickal buffer_index = buffer_len / pasync_ctx->async_data.buffer_size; 14116733b39aSJayamohan Kallickal break; 14126733b39aSJayamohan Kallickal default: 14136733b39aSJayamohan Kallickal pbusy_list = NULL; 14146733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 14156733b39aSJayamohan Kallickal "Unexpected code=%d\n", 14166733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 14176733b39aSJayamohan Kallickal code) / 32] & PDUCQE_CODE_MASK); 14186733b39aSJayamohan Kallickal return NULL; 14196733b39aSJayamohan Kallickal } 14206733b39aSJayamohan Kallickal 14216733b39aSJayamohan Kallickal WARN_ON(!(buffer_index <= pasync_ctx->async_data.num_entries)); 14226733b39aSJayamohan Kallickal WARN_ON(list_empty(pbusy_list)); 14236733b39aSJayamohan Kallickal list_for_each_entry(pasync_handle, pbusy_list, link) { 14246733b39aSJayamohan Kallickal WARN_ON(pasync_handle->consumed); 14256733b39aSJayamohan Kallickal if (pasync_handle->index == buffer_index) 14266733b39aSJayamohan Kallickal break; 14276733b39aSJayamohan Kallickal } 14286733b39aSJayamohan Kallickal 14296733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 14306733b39aSJayamohan Kallickal 14317da50879SJayamohan Kallickal pasync_handle->cri = (unsigned short)beiscsi_conn->beiscsi_conn_cid - 14327da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start; 14336733b39aSJayamohan Kallickal pasync_handle->is_header = is_header; 14346733b39aSJayamohan Kallickal pasync_handle->buffer_len = ((pdpdu_cqe-> 14356733b39aSJayamohan Kallickal dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32] 14366733b39aSJayamohan Kallickal & PDUCQE_DPL_MASK) >> 16); 14376733b39aSJayamohan Kallickal 14386733b39aSJayamohan Kallickal *pcq_index = (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 14396733b39aSJayamohan Kallickal index) / 32] & PDUCQE_INDEX_MASK); 14406733b39aSJayamohan Kallickal return pasync_handle; 14416733b39aSJayamohan Kallickal } 14426733b39aSJayamohan Kallickal 14436733b39aSJayamohan Kallickal static unsigned int 14446733b39aSJayamohan Kallickal hwi_update_async_writables(struct hwi_async_pdu_context *pasync_ctx, 14456733b39aSJayamohan Kallickal unsigned int is_header, unsigned int cq_index) 14466733b39aSJayamohan Kallickal { 14476733b39aSJayamohan Kallickal struct list_head *pbusy_list; 14486733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 14496733b39aSJayamohan Kallickal unsigned int num_entries, writables = 0; 14506733b39aSJayamohan Kallickal unsigned int *pep_read_ptr, *pwritables; 14516733b39aSJayamohan Kallickal 14526733b39aSJayamohan Kallickal 14536733b39aSJayamohan Kallickal if (is_header) { 14546733b39aSJayamohan Kallickal pep_read_ptr = &pasync_ctx->async_header.ep_read_ptr; 14556733b39aSJayamohan Kallickal pwritables = &pasync_ctx->async_header.writables; 14566733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_header.num_entries; 14576733b39aSJayamohan Kallickal } else { 14586733b39aSJayamohan Kallickal pep_read_ptr = &pasync_ctx->async_data.ep_read_ptr; 14596733b39aSJayamohan Kallickal pwritables = &pasync_ctx->async_data.writables; 14606733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_data.num_entries; 14616733b39aSJayamohan Kallickal } 14626733b39aSJayamohan Kallickal 14636733b39aSJayamohan Kallickal while ((*pep_read_ptr) != cq_index) { 14646733b39aSJayamohan Kallickal (*pep_read_ptr)++; 14656733b39aSJayamohan Kallickal *pep_read_ptr = (*pep_read_ptr) % num_entries; 14666733b39aSJayamohan Kallickal 14676733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, is_header, 14686733b39aSJayamohan Kallickal *pep_read_ptr); 14696733b39aSJayamohan Kallickal if (writables == 0) 14706733b39aSJayamohan Kallickal WARN_ON(list_empty(pbusy_list)); 14716733b39aSJayamohan Kallickal 14726733b39aSJayamohan Kallickal if (!list_empty(pbusy_list)) { 14736733b39aSJayamohan Kallickal pasync_handle = list_entry(pbusy_list->next, 14746733b39aSJayamohan Kallickal struct async_pdu_handle, 14756733b39aSJayamohan Kallickal link); 14766733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 14776733b39aSJayamohan Kallickal pasync_handle->consumed = 1; 14786733b39aSJayamohan Kallickal } 14796733b39aSJayamohan Kallickal 14806733b39aSJayamohan Kallickal writables++; 14816733b39aSJayamohan Kallickal } 14826733b39aSJayamohan Kallickal 14836733b39aSJayamohan Kallickal if (!writables) { 14846733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 14856733b39aSJayamohan Kallickal "Duplicate notification received - index 0x%x!!\n", 14866733b39aSJayamohan Kallickal cq_index); 14876733b39aSJayamohan Kallickal WARN_ON(1); 14886733b39aSJayamohan Kallickal } 14896733b39aSJayamohan Kallickal 14906733b39aSJayamohan Kallickal *pwritables = *pwritables + writables; 14916733b39aSJayamohan Kallickal return 0; 14926733b39aSJayamohan Kallickal } 14936733b39aSJayamohan Kallickal 14946733b39aSJayamohan Kallickal static unsigned int hwi_free_async_msg(struct beiscsi_hba *phba, 14956733b39aSJayamohan Kallickal unsigned int cri) 14966733b39aSJayamohan Kallickal { 14976733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 14986733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 14996733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle, *tmp_handle; 15006733b39aSJayamohan Kallickal struct list_head *plist; 15016733b39aSJayamohan Kallickal unsigned int i = 0; 15026733b39aSJayamohan Kallickal 15036733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 15046733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 15056733b39aSJayamohan Kallickal 15066733b39aSJayamohan Kallickal plist = &pasync_ctx->async_entry[cri].wait_queue.list; 15076733b39aSJayamohan Kallickal 15086733b39aSJayamohan Kallickal list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link) { 15096733b39aSJayamohan Kallickal list_del(&pasync_handle->link); 15106733b39aSJayamohan Kallickal 15116733b39aSJayamohan Kallickal if (i == 0) { 15126733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 15136733b39aSJayamohan Kallickal &pasync_ctx->async_header.free_list); 15146733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries++; 15156733b39aSJayamohan Kallickal i++; 15166733b39aSJayamohan Kallickal } else { 15176733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 15186733b39aSJayamohan Kallickal &pasync_ctx->async_data.free_list); 15196733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries++; 15206733b39aSJayamohan Kallickal i++; 15216733b39aSJayamohan Kallickal } 15226733b39aSJayamohan Kallickal } 15236733b39aSJayamohan Kallickal 15246733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[cri].wait_queue.list); 15256733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_received = 0; 15266733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0; 15276733b39aSJayamohan Kallickal return 0; 15286733b39aSJayamohan Kallickal } 15296733b39aSJayamohan Kallickal 15306733b39aSJayamohan Kallickal static struct phys_addr * 15316733b39aSJayamohan Kallickal hwi_get_ring_address(struct hwi_async_pdu_context *pasync_ctx, 15326733b39aSJayamohan Kallickal unsigned int is_header, unsigned int host_write_ptr) 15336733b39aSJayamohan Kallickal { 15346733b39aSJayamohan Kallickal struct phys_addr *pasync_sge = NULL; 15356733b39aSJayamohan Kallickal 15366733b39aSJayamohan Kallickal if (is_header) 15376733b39aSJayamohan Kallickal pasync_sge = pasync_ctx->async_header.ring_base; 15386733b39aSJayamohan Kallickal else 15396733b39aSJayamohan Kallickal pasync_sge = pasync_ctx->async_data.ring_base; 15406733b39aSJayamohan Kallickal 15416733b39aSJayamohan Kallickal return pasync_sge + host_write_ptr; 15426733b39aSJayamohan Kallickal } 15436733b39aSJayamohan Kallickal 15446733b39aSJayamohan Kallickal static void hwi_post_async_buffers(struct beiscsi_hba *phba, 15456733b39aSJayamohan Kallickal unsigned int is_header) 15466733b39aSJayamohan Kallickal { 15476733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 15486733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 15496733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 15506733b39aSJayamohan Kallickal struct list_head *pfree_link, *pbusy_list; 15516733b39aSJayamohan Kallickal struct phys_addr *pasync_sge; 15526733b39aSJayamohan Kallickal unsigned int ring_id, num_entries; 15536733b39aSJayamohan Kallickal unsigned int host_write_num; 15546733b39aSJayamohan Kallickal unsigned int writables; 15556733b39aSJayamohan Kallickal unsigned int i = 0; 15566733b39aSJayamohan Kallickal u32 doorbell = 0; 15576733b39aSJayamohan Kallickal 15586733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 15596733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 15606733b39aSJayamohan Kallickal 15616733b39aSJayamohan Kallickal if (is_header) { 15626733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_header.num_entries; 15636733b39aSJayamohan Kallickal writables = min(pasync_ctx->async_header.writables, 15646733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries); 15656733b39aSJayamohan Kallickal pfree_link = pasync_ctx->async_header.free_list.next; 15666733b39aSJayamohan Kallickal host_write_num = pasync_ctx->async_header.host_write_ptr; 15676733b39aSJayamohan Kallickal ring_id = phwi_ctrlr->default_pdu_hdr.id; 15686733b39aSJayamohan Kallickal } else { 15696733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_data.num_entries; 15706733b39aSJayamohan Kallickal writables = min(pasync_ctx->async_data.writables, 15716733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries); 15726733b39aSJayamohan Kallickal pfree_link = pasync_ctx->async_data.free_list.next; 15736733b39aSJayamohan Kallickal host_write_num = pasync_ctx->async_data.host_write_ptr; 15746733b39aSJayamohan Kallickal ring_id = phwi_ctrlr->default_pdu_data.id; 15756733b39aSJayamohan Kallickal } 15766733b39aSJayamohan Kallickal 15776733b39aSJayamohan Kallickal writables = (writables / 8) * 8; 15786733b39aSJayamohan Kallickal if (writables) { 15796733b39aSJayamohan Kallickal for (i = 0; i < writables; i++) { 15806733b39aSJayamohan Kallickal pbusy_list = 15816733b39aSJayamohan Kallickal hwi_get_async_busy_list(pasync_ctx, is_header, 15826733b39aSJayamohan Kallickal host_write_num); 15836733b39aSJayamohan Kallickal pasync_handle = 15846733b39aSJayamohan Kallickal list_entry(pfree_link, struct async_pdu_handle, 15856733b39aSJayamohan Kallickal link); 15866733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 15876733b39aSJayamohan Kallickal pasync_handle->consumed = 0; 15886733b39aSJayamohan Kallickal 15896733b39aSJayamohan Kallickal pfree_link = pfree_link->next; 15906733b39aSJayamohan Kallickal 15916733b39aSJayamohan Kallickal pasync_sge = hwi_get_ring_address(pasync_ctx, 15926733b39aSJayamohan Kallickal is_header, host_write_num); 15936733b39aSJayamohan Kallickal 15946733b39aSJayamohan Kallickal pasync_sge->hi = pasync_handle->pa.u.a32.address_lo; 15956733b39aSJayamohan Kallickal pasync_sge->lo = pasync_handle->pa.u.a32.address_hi; 15966733b39aSJayamohan Kallickal 15976733b39aSJayamohan Kallickal list_move(&pasync_handle->link, pbusy_list); 15986733b39aSJayamohan Kallickal 15996733b39aSJayamohan Kallickal host_write_num++; 16006733b39aSJayamohan Kallickal host_write_num = host_write_num % num_entries; 16016733b39aSJayamohan Kallickal } 16026733b39aSJayamohan Kallickal 16036733b39aSJayamohan Kallickal if (is_header) { 16046733b39aSJayamohan Kallickal pasync_ctx->async_header.host_write_ptr = 16056733b39aSJayamohan Kallickal host_write_num; 16066733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries -= writables; 16076733b39aSJayamohan Kallickal pasync_ctx->async_header.writables -= writables; 16086733b39aSJayamohan Kallickal pasync_ctx->async_header.busy_entries += writables; 16096733b39aSJayamohan Kallickal } else { 16106733b39aSJayamohan Kallickal pasync_ctx->async_data.host_write_ptr = host_write_num; 16116733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries -= writables; 16126733b39aSJayamohan Kallickal pasync_ctx->async_data.writables -= writables; 16136733b39aSJayamohan Kallickal pasync_ctx->async_data.busy_entries += writables; 16146733b39aSJayamohan Kallickal } 16156733b39aSJayamohan Kallickal 16166733b39aSJayamohan Kallickal doorbell |= ring_id & DB_DEF_PDU_RING_ID_MASK; 16176733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_REARM_SHIFT; 16186733b39aSJayamohan Kallickal doorbell |= 0 << DB_DEF_PDU_EVENT_SHIFT; 16196733b39aSJayamohan Kallickal doorbell |= (writables & DB_DEF_PDU_CQPROC_MASK) 16206733b39aSJayamohan Kallickal << DB_DEF_PDU_CQPROC_SHIFT; 16216733b39aSJayamohan Kallickal 16226733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_RXULP0_OFFSET); 16236733b39aSJayamohan Kallickal } 16246733b39aSJayamohan Kallickal } 16256733b39aSJayamohan Kallickal 16266733b39aSJayamohan Kallickal static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba, 16276733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn, 16286733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe) 16296733b39aSJayamohan Kallickal { 16306733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 16316733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 16326733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 16336733b39aSJayamohan Kallickal unsigned int cq_index = -1; 16346733b39aSJayamohan Kallickal 16356733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 16366733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 16376733b39aSJayamohan Kallickal 16386733b39aSJayamohan Kallickal pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx, 16396733b39aSJayamohan Kallickal pdpdu_cqe, &cq_index); 16406733b39aSJayamohan Kallickal BUG_ON(pasync_handle->is_header != 0); 16416733b39aSJayamohan Kallickal if (pasync_handle->consumed == 0) 16426733b39aSJayamohan Kallickal hwi_update_async_writables(pasync_ctx, pasync_handle->is_header, 16436733b39aSJayamohan Kallickal cq_index); 16446733b39aSJayamohan Kallickal 16456733b39aSJayamohan Kallickal hwi_free_async_msg(phba, pasync_handle->cri); 16466733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, pasync_handle->is_header); 16476733b39aSJayamohan Kallickal } 16486733b39aSJayamohan Kallickal 16496733b39aSJayamohan Kallickal static unsigned int 16506733b39aSJayamohan Kallickal hwi_fwd_async_msg(struct beiscsi_conn *beiscsi_conn, 16516733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 16526733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, unsigned short cri) 16536733b39aSJayamohan Kallickal { 16546733b39aSJayamohan Kallickal struct list_head *plist; 16556733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 16566733b39aSJayamohan Kallickal void *phdr = NULL; 16576733b39aSJayamohan Kallickal unsigned int hdr_len = 0, buf_len = 0; 16586733b39aSJayamohan Kallickal unsigned int status, index = 0, offset = 0; 16596733b39aSJayamohan Kallickal void *pfirst_buffer = NULL; 16606733b39aSJayamohan Kallickal unsigned int num_buf = 0; 16616733b39aSJayamohan Kallickal 16626733b39aSJayamohan Kallickal plist = &pasync_ctx->async_entry[cri].wait_queue.list; 16636733b39aSJayamohan Kallickal 16646733b39aSJayamohan Kallickal list_for_each_entry(pasync_handle, plist, link) { 16656733b39aSJayamohan Kallickal if (index == 0) { 16666733b39aSJayamohan Kallickal phdr = pasync_handle->pbuffer; 16676733b39aSJayamohan Kallickal hdr_len = pasync_handle->buffer_len; 16686733b39aSJayamohan Kallickal } else { 16696733b39aSJayamohan Kallickal buf_len = pasync_handle->buffer_len; 16706733b39aSJayamohan Kallickal if (!num_buf) { 16716733b39aSJayamohan Kallickal pfirst_buffer = pasync_handle->pbuffer; 16726733b39aSJayamohan Kallickal num_buf++; 16736733b39aSJayamohan Kallickal } 16746733b39aSJayamohan Kallickal memcpy(pfirst_buffer + offset, 16756733b39aSJayamohan Kallickal pasync_handle->pbuffer, buf_len); 16766733b39aSJayamohan Kallickal offset = buf_len; 16776733b39aSJayamohan Kallickal } 16786733b39aSJayamohan Kallickal index++; 16796733b39aSJayamohan Kallickal } 16806733b39aSJayamohan Kallickal 16816733b39aSJayamohan Kallickal status = beiscsi_process_async_pdu(beiscsi_conn, phba, 16827da50879SJayamohan Kallickal (beiscsi_conn->beiscsi_conn_cid - 16837da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start), 16846733b39aSJayamohan Kallickal phdr, hdr_len, pfirst_buffer, 16856733b39aSJayamohan Kallickal buf_len); 16866733b39aSJayamohan Kallickal 16876733b39aSJayamohan Kallickal if (status == 0) 16886733b39aSJayamohan Kallickal hwi_free_async_msg(phba, cri); 16896733b39aSJayamohan Kallickal return 0; 16906733b39aSJayamohan Kallickal } 16916733b39aSJayamohan Kallickal 16926733b39aSJayamohan Kallickal static unsigned int 16936733b39aSJayamohan Kallickal hwi_gather_async_pdu(struct beiscsi_conn *beiscsi_conn, 16946733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 16956733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle) 16966733b39aSJayamohan Kallickal { 16976733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 16986733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 16996733b39aSJayamohan Kallickal unsigned int bytes_needed = 0, status = 0; 17006733b39aSJayamohan Kallickal unsigned short cri = pasync_handle->cri; 17016733b39aSJayamohan Kallickal struct pdu_base *ppdu; 17026733b39aSJayamohan Kallickal 17036733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 17046733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 17056733b39aSJayamohan Kallickal 17066733b39aSJayamohan Kallickal list_del(&pasync_handle->link); 17076733b39aSJayamohan Kallickal if (pasync_handle->is_header) { 17086733b39aSJayamohan Kallickal pasync_ctx->async_header.busy_entries--; 17096733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) { 17106733b39aSJayamohan Kallickal hwi_free_async_msg(phba, cri); 17116733b39aSJayamohan Kallickal BUG(); 17126733b39aSJayamohan Kallickal } 17136733b39aSJayamohan Kallickal 17146733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0; 17156733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_received = 1; 17166733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_len = 17176733b39aSJayamohan Kallickal (unsigned short)pasync_handle->buffer_len; 17186733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 17196733b39aSJayamohan Kallickal &pasync_ctx->async_entry[cri].wait_queue.list); 17206733b39aSJayamohan Kallickal 17216733b39aSJayamohan Kallickal ppdu = pasync_handle->pbuffer; 17226733b39aSJayamohan Kallickal bytes_needed = ((((ppdu->dw[offsetof(struct amap_pdu_base, 17236733b39aSJayamohan Kallickal data_len_hi) / 32] & PDUBASE_DATALENHI_MASK) << 8) & 17246733b39aSJayamohan Kallickal 0xFFFF0000) | ((be16_to_cpu((ppdu-> 17256733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_base, data_len_lo) / 32] 17266733b39aSJayamohan Kallickal & PDUBASE_DATALENLO_MASK) >> 16)) & 0x0000FFFF)); 17276733b39aSJayamohan Kallickal 17286733b39aSJayamohan Kallickal if (status == 0) { 17296733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_needed = 17306733b39aSJayamohan Kallickal bytes_needed; 17316733b39aSJayamohan Kallickal 17326733b39aSJayamohan Kallickal if (bytes_needed == 0) 17336733b39aSJayamohan Kallickal status = hwi_fwd_async_msg(beiscsi_conn, phba, 17346733b39aSJayamohan Kallickal pasync_ctx, cri); 17356733b39aSJayamohan Kallickal } 17366733b39aSJayamohan Kallickal } else { 17376733b39aSJayamohan Kallickal pasync_ctx->async_data.busy_entries--; 17386733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) { 17396733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 17406733b39aSJayamohan Kallickal &pasync_ctx->async_entry[cri].wait_queue. 17416733b39aSJayamohan Kallickal list); 17426733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue. 17436733b39aSJayamohan Kallickal bytes_received += 17446733b39aSJayamohan Kallickal (unsigned short)pasync_handle->buffer_len; 17456733b39aSJayamohan Kallickal 17466733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue. 17476733b39aSJayamohan Kallickal bytes_received >= 17486733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue. 17496733b39aSJayamohan Kallickal bytes_needed) 17506733b39aSJayamohan Kallickal status = hwi_fwd_async_msg(beiscsi_conn, phba, 17516733b39aSJayamohan Kallickal pasync_ctx, cri); 17526733b39aSJayamohan Kallickal } 17536733b39aSJayamohan Kallickal } 17546733b39aSJayamohan Kallickal return status; 17556733b39aSJayamohan Kallickal } 17566733b39aSJayamohan Kallickal 17576733b39aSJayamohan Kallickal static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn, 17586733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 17596733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe) 17606733b39aSJayamohan Kallickal { 17616733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 17626733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 17636733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 17646733b39aSJayamohan Kallickal unsigned int cq_index = -1; 17656733b39aSJayamohan Kallickal 17666733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 17676733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 17686733b39aSJayamohan Kallickal pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx, 17696733b39aSJayamohan Kallickal pdpdu_cqe, &cq_index); 17706733b39aSJayamohan Kallickal 17716733b39aSJayamohan Kallickal if (pasync_handle->consumed == 0) 17726733b39aSJayamohan Kallickal hwi_update_async_writables(pasync_ctx, pasync_handle->is_header, 17736733b39aSJayamohan Kallickal cq_index); 17746733b39aSJayamohan Kallickal hwi_gather_async_pdu(beiscsi_conn, phba, pasync_handle); 17756733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, pasync_handle->is_header); 17766733b39aSJayamohan Kallickal } 17776733b39aSJayamohan Kallickal 1778756d29c8SJayamohan Kallickal static void beiscsi_process_mcc_isr(struct beiscsi_hba *phba) 1779756d29c8SJayamohan Kallickal { 1780756d29c8SJayamohan Kallickal struct be_queue_info *mcc_cq; 1781756d29c8SJayamohan Kallickal struct be_mcc_compl *mcc_compl; 1782756d29c8SJayamohan Kallickal unsigned int num_processed = 0; 1783756d29c8SJayamohan Kallickal 1784756d29c8SJayamohan Kallickal mcc_cq = &phba->ctrl.mcc_obj.cq; 1785756d29c8SJayamohan Kallickal mcc_compl = queue_tail_node(mcc_cq); 1786756d29c8SJayamohan Kallickal mcc_compl->flags = le32_to_cpu(mcc_compl->flags); 1787756d29c8SJayamohan Kallickal while (mcc_compl->flags & CQE_FLAGS_VALID_MASK) { 1788756d29c8SJayamohan Kallickal 1789756d29c8SJayamohan Kallickal if (num_processed >= 32) { 1790756d29c8SJayamohan Kallickal hwi_ring_cq_db(phba, mcc_cq->id, 1791756d29c8SJayamohan Kallickal num_processed, 0, 0); 1792756d29c8SJayamohan Kallickal num_processed = 0; 1793756d29c8SJayamohan Kallickal } 1794756d29c8SJayamohan Kallickal if (mcc_compl->flags & CQE_FLAGS_ASYNC_MASK) { 1795756d29c8SJayamohan Kallickal /* Interpret flags as an async trailer */ 1796756d29c8SJayamohan Kallickal if (is_link_state_evt(mcc_compl->flags)) 1797756d29c8SJayamohan Kallickal /* Interpret compl as a async link evt */ 1798756d29c8SJayamohan Kallickal beiscsi_async_link_state_process(phba, 1799756d29c8SJayamohan Kallickal (struct be_async_event_link_state *) mcc_compl); 1800756d29c8SJayamohan Kallickal else 1801756d29c8SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 1802756d29c8SJayamohan Kallickal " Unsupported Async Event, flags" 1803756d29c8SJayamohan Kallickal " = 0x%08x\n", mcc_compl->flags); 1804756d29c8SJayamohan Kallickal } else if (mcc_compl->flags & CQE_FLAGS_COMPLETED_MASK) { 1805756d29c8SJayamohan Kallickal be_mcc_compl_process_isr(&phba->ctrl, mcc_compl); 1806756d29c8SJayamohan Kallickal atomic_dec(&phba->ctrl.mcc_obj.q.used); 1807756d29c8SJayamohan Kallickal } 1808756d29c8SJayamohan Kallickal 1809756d29c8SJayamohan Kallickal mcc_compl->flags = 0; 1810756d29c8SJayamohan Kallickal queue_tail_inc(mcc_cq); 1811756d29c8SJayamohan Kallickal mcc_compl = queue_tail_node(mcc_cq); 1812756d29c8SJayamohan Kallickal mcc_compl->flags = le32_to_cpu(mcc_compl->flags); 1813756d29c8SJayamohan Kallickal num_processed++; 1814756d29c8SJayamohan Kallickal } 1815756d29c8SJayamohan Kallickal 1816756d29c8SJayamohan Kallickal if (num_processed > 0) 1817756d29c8SJayamohan Kallickal hwi_ring_cq_db(phba, mcc_cq->id, num_processed, 1, 0); 1818756d29c8SJayamohan Kallickal 1819756d29c8SJayamohan Kallickal } 1820bfead3b2SJayamohan Kallickal 1821bfead3b2SJayamohan Kallickal static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq) 18226733b39aSJayamohan Kallickal { 18236733b39aSJayamohan Kallickal struct be_queue_info *cq; 18246733b39aSJayamohan Kallickal struct sol_cqe *sol; 18256733b39aSJayamohan Kallickal struct dmsg_cqe *dmsg; 18266733b39aSJayamohan Kallickal unsigned int num_processed = 0; 18276733b39aSJayamohan Kallickal unsigned int tot_nump = 0; 18286733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 1829c2462288SJayamohan Kallickal struct beiscsi_endpoint *beiscsi_ep; 1830c2462288SJayamohan Kallickal struct iscsi_endpoint *ep; 1831bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 18326733b39aSJayamohan Kallickal 1833bfead3b2SJayamohan Kallickal cq = pbe_eq->cq; 18346733b39aSJayamohan Kallickal sol = queue_tail_node(cq); 1835bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 18366733b39aSJayamohan Kallickal 18376733b39aSJayamohan Kallickal while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] & 18386733b39aSJayamohan Kallickal CQE_VALID_MASK) { 18396733b39aSJayamohan Kallickal be_dws_le_to_cpu(sol, sizeof(struct sol_cqe)); 18406733b39aSJayamohan Kallickal 1841c2462288SJayamohan Kallickal ep = phba->ep_array[(u32) ((sol-> 18426733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, cid) / 32] & 18437da50879SJayamohan Kallickal SOL_CID_MASK) >> 6) - 18447da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 184532951dd8SJayamohan Kallickal 1846c2462288SJayamohan Kallickal beiscsi_ep = ep->dd_data; 1847c2462288SJayamohan Kallickal beiscsi_conn = beiscsi_ep->conn; 1848756d29c8SJayamohan Kallickal 18496733b39aSJayamohan Kallickal if (num_processed >= 32) { 1850bfead3b2SJayamohan Kallickal hwi_ring_cq_db(phba, cq->id, 18516733b39aSJayamohan Kallickal num_processed, 0, 0); 18526733b39aSJayamohan Kallickal tot_nump += num_processed; 18536733b39aSJayamohan Kallickal num_processed = 0; 18546733b39aSJayamohan Kallickal } 18556733b39aSJayamohan Kallickal 18566733b39aSJayamohan Kallickal switch ((u32) sol->dw[offsetof(struct amap_sol_cqe, code) / 18576733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK) { 18586733b39aSJayamohan Kallickal case SOL_CMD_COMPLETE: 18596733b39aSJayamohan Kallickal hwi_complete_cmd(beiscsi_conn, phba, sol); 18606733b39aSJayamohan Kallickal break; 18616733b39aSJayamohan Kallickal case DRIVERMSG_NOTIFY: 18626733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Received DRIVERMSG_NOTIFY\n"); 18636733b39aSJayamohan Kallickal dmsg = (struct dmsg_cqe *)sol; 18646733b39aSJayamohan Kallickal hwi_complete_drvr_msgs(beiscsi_conn, phba, sol); 18656733b39aSJayamohan Kallickal break; 18666733b39aSJayamohan Kallickal case UNSOL_HDR_NOTIFY: 1867bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Received UNSOL_HDR_ NOTIFY\n"); 1868bfead3b2SJayamohan Kallickal hwi_process_default_pdu_ring(beiscsi_conn, phba, 1869bfead3b2SJayamohan Kallickal (struct i_t_dpdu_cqe *)sol); 1870bfead3b2SJayamohan Kallickal break; 18716733b39aSJayamohan Kallickal case UNSOL_DATA_NOTIFY: 1872bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Received UNSOL_DATA_NOTIFY\n"); 18736733b39aSJayamohan Kallickal hwi_process_default_pdu_ring(beiscsi_conn, phba, 18746733b39aSJayamohan Kallickal (struct i_t_dpdu_cqe *)sol); 18756733b39aSJayamohan Kallickal break; 18766733b39aSJayamohan Kallickal case CXN_INVALIDATE_INDEX_NOTIFY: 18776733b39aSJayamohan Kallickal case CMD_INVALIDATED_NOTIFY: 18786733b39aSJayamohan Kallickal case CXN_INVALIDATE_NOTIFY: 18796733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 18806733b39aSJayamohan Kallickal "Ignoring CQ Error notification for cmd/cxn" 18816733b39aSJayamohan Kallickal "invalidate\n"); 18826733b39aSJayamohan Kallickal break; 18836733b39aSJayamohan Kallickal case SOL_CMD_KILLED_DATA_DIGEST_ERR: 18846733b39aSJayamohan Kallickal case CMD_KILLED_INVALID_STATSN_RCVD: 18856733b39aSJayamohan Kallickal case CMD_KILLED_INVALID_R2T_RCVD: 18866733b39aSJayamohan Kallickal case CMD_CXN_KILLED_LUN_INVALID: 18876733b39aSJayamohan Kallickal case CMD_CXN_KILLED_ICD_INVALID: 18886733b39aSJayamohan Kallickal case CMD_CXN_KILLED_ITT_INVALID: 18896733b39aSJayamohan Kallickal case CMD_CXN_KILLED_SEQ_OUTOFORDER: 18906733b39aSJayamohan Kallickal case CMD_CXN_KILLED_INVALID_DATASN_RCVD: 18916733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 18926733b39aSJayamohan Kallickal "CQ Error notification for cmd.. " 18936733b39aSJayamohan Kallickal "code %d cid 0x%x\n", 18946733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 18956733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 18966733b39aSJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 18976733b39aSJayamohan Kallickal 32] & SOL_CID_MASK)); 18986733b39aSJayamohan Kallickal break; 18996733b39aSJayamohan Kallickal case UNSOL_DATA_DIGEST_ERROR_NOTIFY: 19006733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 19016733b39aSJayamohan Kallickal "Digest error on def pdu ring, dropping..\n"); 19026733b39aSJayamohan Kallickal hwi_flush_default_pdu_buffer(phba, beiscsi_conn, 19036733b39aSJayamohan Kallickal (struct i_t_dpdu_cqe *) sol); 19046733b39aSJayamohan Kallickal break; 19056733b39aSJayamohan Kallickal case CXN_KILLED_PDU_SIZE_EXCEEDS_DSL: 19066733b39aSJayamohan Kallickal case CXN_KILLED_BURST_LEN_MISMATCH: 19076733b39aSJayamohan Kallickal case CXN_KILLED_AHS_RCVD: 19086733b39aSJayamohan Kallickal case CXN_KILLED_HDR_DIGEST_ERR: 19096733b39aSJayamohan Kallickal case CXN_KILLED_UNKNOWN_HDR: 19106733b39aSJayamohan Kallickal case CXN_KILLED_STALE_ITT_TTT_RCVD: 19116733b39aSJayamohan Kallickal case CXN_KILLED_INVALID_ITT_TTT_RCVD: 19126733b39aSJayamohan Kallickal case CXN_KILLED_TIMED_OUT: 19136733b39aSJayamohan Kallickal case CXN_KILLED_FIN_RCVD: 19146733b39aSJayamohan Kallickal case CXN_KILLED_BAD_UNSOL_PDU_RCVD: 19156733b39aSJayamohan Kallickal case CXN_KILLED_BAD_WRB_INDEX_ERROR: 19166733b39aSJayamohan Kallickal case CXN_KILLED_OVER_RUN_RESIDUAL: 19176733b39aSJayamohan Kallickal case CXN_KILLED_UNDER_RUN_RESIDUAL: 19186733b39aSJayamohan Kallickal case CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN: 1919bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset CID " 19206733b39aSJayamohan Kallickal "0x%x...\n", 19216733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 19226733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 19237da50879SJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 19247da50879SJayamohan Kallickal 32] & CQE_CID_MASK)); 19256733b39aSJayamohan Kallickal iscsi_conn_failure(beiscsi_conn->conn, 19266733b39aSJayamohan Kallickal ISCSI_ERR_CONN_FAILED); 19276733b39aSJayamohan Kallickal break; 19286733b39aSJayamohan Kallickal case CXN_KILLED_RST_SENT: 19296733b39aSJayamohan Kallickal case CXN_KILLED_RST_RCVD: 1930bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset" 1931bfead3b2SJayamohan Kallickal "received/sent on CID 0x%x...\n", 19326733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 19336733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 19347da50879SJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 19357da50879SJayamohan Kallickal 32] & CQE_CID_MASK)); 19366733b39aSJayamohan Kallickal iscsi_conn_failure(beiscsi_conn->conn, 19376733b39aSJayamohan Kallickal ISCSI_ERR_CONN_FAILED); 19386733b39aSJayamohan Kallickal break; 19396733b39aSJayamohan Kallickal default: 19406733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error Invalid code= %d " 19416733b39aSJayamohan Kallickal "received on CID 0x%x...\n", 19426733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 19436733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 19447da50879SJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 19457da50879SJayamohan Kallickal 32] & CQE_CID_MASK)); 19466733b39aSJayamohan Kallickal break; 19476733b39aSJayamohan Kallickal } 19486733b39aSJayamohan Kallickal 19496733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_sol_cqe, valid, sol, 0); 19506733b39aSJayamohan Kallickal queue_tail_inc(cq); 19516733b39aSJayamohan Kallickal sol = queue_tail_node(cq); 19526733b39aSJayamohan Kallickal num_processed++; 19536733b39aSJayamohan Kallickal } 19546733b39aSJayamohan Kallickal 19556733b39aSJayamohan Kallickal if (num_processed > 0) { 19566733b39aSJayamohan Kallickal tot_nump += num_processed; 1957bfead3b2SJayamohan Kallickal hwi_ring_cq_db(phba, cq->id, num_processed, 1, 0); 19586733b39aSJayamohan Kallickal } 19596733b39aSJayamohan Kallickal return tot_nump; 19606733b39aSJayamohan Kallickal } 19616733b39aSJayamohan Kallickal 1962756d29c8SJayamohan Kallickal void beiscsi_process_all_cqs(struct work_struct *work) 19636733b39aSJayamohan Kallickal { 19646733b39aSJayamohan Kallickal unsigned long flags; 1965bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 1966bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 1967bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 19686733b39aSJayamohan Kallickal struct beiscsi_hba *phba = 19696733b39aSJayamohan Kallickal container_of(work, struct beiscsi_hba, work_cqs); 19706733b39aSJayamohan Kallickal 1971bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 1972bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 1973bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 1974bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[phba->num_cpus]; 1975bfead3b2SJayamohan Kallickal else 1976bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[0]; 1977bfead3b2SJayamohan Kallickal 19786733b39aSJayamohan Kallickal if (phba->todo_mcc_cq) { 19796733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 19806733b39aSJayamohan Kallickal phba->todo_mcc_cq = 0; 19816733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 1982756d29c8SJayamohan Kallickal beiscsi_process_mcc_isr(phba); 19836733b39aSJayamohan Kallickal } 19846733b39aSJayamohan Kallickal 19856733b39aSJayamohan Kallickal if (phba->todo_cq) { 19866733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 19876733b39aSJayamohan Kallickal phba->todo_cq = 0; 19886733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 1989bfead3b2SJayamohan Kallickal beiscsi_process_cq(pbe_eq); 19906733b39aSJayamohan Kallickal } 19916733b39aSJayamohan Kallickal } 19926733b39aSJayamohan Kallickal 19936733b39aSJayamohan Kallickal static int be_iopoll(struct blk_iopoll *iop, int budget) 19946733b39aSJayamohan Kallickal { 19956733b39aSJayamohan Kallickal static unsigned int ret; 19966733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 1997bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 19986733b39aSJayamohan Kallickal 1999bfead3b2SJayamohan Kallickal pbe_eq = container_of(iop, struct be_eq_obj, iopoll); 2000bfead3b2SJayamohan Kallickal ret = beiscsi_process_cq(pbe_eq); 20016733b39aSJayamohan Kallickal if (ret < budget) { 2002bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 20036733b39aSJayamohan Kallickal blk_iopoll_complete(iop); 2004bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "rearm pbe_eq->q.id =%d\n", pbe_eq->q.id); 2005bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1); 20066733b39aSJayamohan Kallickal } 20076733b39aSJayamohan Kallickal return ret; 20086733b39aSJayamohan Kallickal } 20096733b39aSJayamohan Kallickal 20106733b39aSJayamohan Kallickal static void 20116733b39aSJayamohan Kallickal hwi_write_sgl(struct iscsi_wrb *pwrb, struct scatterlist *sg, 20126733b39aSJayamohan Kallickal unsigned int num_sg, struct beiscsi_io_task *io_task) 20136733b39aSJayamohan Kallickal { 20146733b39aSJayamohan Kallickal struct iscsi_sge *psgl; 201558ff4bd0SJayamohan Kallickal unsigned int sg_len, index; 20166733b39aSJayamohan Kallickal unsigned int sge_len = 0; 20176733b39aSJayamohan Kallickal unsigned long long addr; 20186733b39aSJayamohan Kallickal struct scatterlist *l_sg; 20196733b39aSJayamohan Kallickal unsigned int offset; 20206733b39aSJayamohan Kallickal 20216733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb, 20226733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 20236733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb, 20246733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 20256733b39aSJayamohan Kallickal 20266733b39aSJayamohan Kallickal l_sg = sg; 202748bd86cfSJayamohan Kallickal for (index = 0; (index < num_sg) && (index < 2); index++, 202848bd86cfSJayamohan Kallickal sg = sg_next(sg)) { 20296733b39aSJayamohan Kallickal if (index == 0) { 20306733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 20316733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 20326733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb, 2033457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 20346733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb, 2035457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 20366733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb, 20376733b39aSJayamohan Kallickal sg_len); 20386733b39aSJayamohan Kallickal sge_len = sg_len; 20396733b39aSJayamohan Kallickal } else { 20406733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_r2t_offset, 20416733b39aSJayamohan Kallickal pwrb, sge_len); 20426733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 20436733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 20446733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_lo, pwrb, 2045457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 20466733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_hi, pwrb, 2047457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 20486733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_len, pwrb, 20496733b39aSJayamohan Kallickal sg_len); 20506733b39aSJayamohan Kallickal } 20516733b39aSJayamohan Kallickal } 20526733b39aSJayamohan Kallickal psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 20536733b39aSJayamohan Kallickal memset(psgl, 0, sizeof(*psgl) * BE2_SGE); 20546733b39aSJayamohan Kallickal 20556733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2); 20566733b39aSJayamohan Kallickal 20576733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 20586733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 20596733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 20606733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 20616733b39aSJayamohan Kallickal 2062caf818f1SJayamohan Kallickal if (num_sg == 1) { 2063caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 2064caf818f1SJayamohan Kallickal 1); 2065caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 2066caf818f1SJayamohan Kallickal 0); 2067caf818f1SJayamohan Kallickal } else if (num_sg == 2) { 2068caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 2069caf818f1SJayamohan Kallickal 0); 2070caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 2071caf818f1SJayamohan Kallickal 1); 2072caf818f1SJayamohan Kallickal } else { 2073caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 2074caf818f1SJayamohan Kallickal 0); 2075caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 2076caf818f1SJayamohan Kallickal 0); 2077caf818f1SJayamohan Kallickal } 20786733b39aSJayamohan Kallickal sg = l_sg; 20796733b39aSJayamohan Kallickal psgl++; 20806733b39aSJayamohan Kallickal psgl++; 20816733b39aSJayamohan Kallickal offset = 0; 208248bd86cfSJayamohan Kallickal for (index = 0; index < num_sg; index++, sg = sg_next(sg), psgl++) { 20836733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 20846733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 20856733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 20866733b39aSJayamohan Kallickal (addr & 0xFFFFFFFF)); 20876733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 20886733b39aSJayamohan Kallickal (addr >> 32)); 20896733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len); 20906733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset); 20916733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 20926733b39aSJayamohan Kallickal offset += sg_len; 20936733b39aSJayamohan Kallickal } 20946733b39aSJayamohan Kallickal psgl--; 20956733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 20966733b39aSJayamohan Kallickal } 20976733b39aSJayamohan Kallickal 20986733b39aSJayamohan Kallickal static void hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task) 20996733b39aSJayamohan Kallickal { 21006733b39aSJayamohan Kallickal struct iscsi_sge *psgl; 21016733b39aSJayamohan Kallickal unsigned long long addr; 21026733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 21036733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = io_task->conn; 21046733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 21056733b39aSJayamohan Kallickal 21066733b39aSJayamohan Kallickal io_task->bhs_len = sizeof(struct be_nonio_bhs) - 2; 21076733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb, 21086733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 21096733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb, 21106733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 21116733b39aSJayamohan Kallickal 21126733b39aSJayamohan Kallickal if (task->data) { 21136733b39aSJayamohan Kallickal if (task->data_count) { 21146733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1); 21156733b39aSJayamohan Kallickal addr = (u64) pci_map_single(phba->pcidev, 21166733b39aSJayamohan Kallickal task->data, 21176733b39aSJayamohan Kallickal task->data_count, 1); 21186733b39aSJayamohan Kallickal } else { 21196733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 21206733b39aSJayamohan Kallickal addr = 0; 21216733b39aSJayamohan Kallickal } 21226733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb, 2123457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 21246733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb, 2125457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 21266733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb, 21276733b39aSJayamohan Kallickal task->data_count); 21286733b39aSJayamohan Kallickal 21296733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1); 21306733b39aSJayamohan Kallickal } else { 21316733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 21326733b39aSJayamohan Kallickal addr = 0; 21336733b39aSJayamohan Kallickal } 21346733b39aSJayamohan Kallickal 21356733b39aSJayamohan Kallickal psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 21366733b39aSJayamohan Kallickal 21376733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len); 21386733b39aSJayamohan Kallickal 21396733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 21406733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 21416733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 21426733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 21436733b39aSJayamohan Kallickal if (task->data) { 21446733b39aSJayamohan Kallickal psgl++; 21456733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 0); 21466733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 0); 21476733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0); 21486733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, 0); 21496733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, rsvd0, psgl, 0); 21506733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 21516733b39aSJayamohan Kallickal 21526733b39aSJayamohan Kallickal psgl++; 21536733b39aSJayamohan Kallickal if (task->data) { 21546733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 2155457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 21566733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 2157457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 21586733b39aSJayamohan Kallickal } 21596733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0x106); 21606733b39aSJayamohan Kallickal } 21616733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 21626733b39aSJayamohan Kallickal } 21636733b39aSJayamohan Kallickal 21646733b39aSJayamohan Kallickal static void beiscsi_find_mem_req(struct beiscsi_hba *phba) 21656733b39aSJayamohan Kallickal { 2166bfead3b2SJayamohan Kallickal unsigned int num_cq_pages, num_async_pdu_buf_pages; 21676733b39aSJayamohan Kallickal unsigned int num_async_pdu_data_pages, wrb_sz_per_cxn; 21686733b39aSJayamohan Kallickal unsigned int num_async_pdu_buf_sgl_pages, num_async_pdu_data_sgl_pages; 21696733b39aSJayamohan Kallickal 21706733b39aSJayamohan Kallickal num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \ 21716733b39aSJayamohan Kallickal sizeof(struct sol_cqe)); 21726733b39aSJayamohan Kallickal num_async_pdu_buf_pages = 21736733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 21746733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz); 21756733b39aSJayamohan Kallickal num_async_pdu_buf_sgl_pages = 21766733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 21776733b39aSJayamohan Kallickal sizeof(struct phys_addr)); 21786733b39aSJayamohan Kallickal num_async_pdu_data_pages = 21796733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 21806733b39aSJayamohan Kallickal phba->params.defpdu_data_sz); 21816733b39aSJayamohan Kallickal num_async_pdu_data_sgl_pages = 21826733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 21836733b39aSJayamohan Kallickal sizeof(struct phys_addr)); 21846733b39aSJayamohan Kallickal 21856733b39aSJayamohan Kallickal phba->params.hwi_ws_sz = sizeof(struct hwi_controller); 21866733b39aSJayamohan Kallickal 21876733b39aSJayamohan Kallickal phba->mem_req[ISCSI_MEM_GLOBAL_HEADER] = 2 * 21886733b39aSJayamohan Kallickal BE_ISCSI_PDU_HEADER_SIZE; 21896733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ADDN_CONTEXT] = 21906733b39aSJayamohan Kallickal sizeof(struct hwi_context_memory); 21916733b39aSJayamohan Kallickal 21926733b39aSJayamohan Kallickal 21936733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_WRB] = sizeof(struct iscsi_wrb) 21946733b39aSJayamohan Kallickal * (phba->params.wrbs_per_cxn) 21956733b39aSJayamohan Kallickal * phba->params.cxns_per_ctrl; 21966733b39aSJayamohan Kallickal wrb_sz_per_cxn = sizeof(struct wrb_handle) * 21976733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn); 21986733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_WRBH] = roundup_pow_of_two((wrb_sz_per_cxn) * 21996733b39aSJayamohan Kallickal phba->params.cxns_per_ctrl); 22006733b39aSJayamohan Kallickal 22016733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_SGLH] = sizeof(struct sgl_handle) * 22026733b39aSJayamohan Kallickal phba->params.icds_per_ctrl; 22036733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_SGE] = sizeof(struct iscsi_sge) * 22046733b39aSJayamohan Kallickal phba->params.num_sge_per_io * phba->params.icds_per_ctrl; 22056733b39aSJayamohan Kallickal 22066733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_HEADER_BUF] = 22076733b39aSJayamohan Kallickal num_async_pdu_buf_pages * PAGE_SIZE; 22086733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_DATA_BUF] = 22096733b39aSJayamohan Kallickal num_async_pdu_data_pages * PAGE_SIZE; 22106733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_HEADER_RING] = 22116733b39aSJayamohan Kallickal num_async_pdu_buf_sgl_pages * PAGE_SIZE; 22126733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_DATA_RING] = 22136733b39aSJayamohan Kallickal num_async_pdu_data_sgl_pages * PAGE_SIZE; 22146733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_HEADER_HANDLE] = 22156733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl * 22166733b39aSJayamohan Kallickal sizeof(struct async_pdu_handle); 22176733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_DATA_HANDLE] = 22186733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl * 22196733b39aSJayamohan Kallickal sizeof(struct async_pdu_handle); 22206733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_PDU_CONTEXT] = 22216733b39aSJayamohan Kallickal sizeof(struct hwi_async_pdu_context) + 22226733b39aSJayamohan Kallickal (phba->params.cxns_per_ctrl * sizeof(struct hwi_async_entry)); 22236733b39aSJayamohan Kallickal } 22246733b39aSJayamohan Kallickal 22256733b39aSJayamohan Kallickal static int beiscsi_alloc_mem(struct beiscsi_hba *phba) 22266733b39aSJayamohan Kallickal { 22276733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 22286733b39aSJayamohan Kallickal dma_addr_t bus_add; 22296733b39aSJayamohan Kallickal struct mem_array *mem_arr, *mem_arr_orig; 22306733b39aSJayamohan Kallickal unsigned int i, j, alloc_size, curr_alloc_size; 22316733b39aSJayamohan Kallickal 22326733b39aSJayamohan Kallickal phba->phwi_ctrlr = kmalloc(phba->params.hwi_ws_sz, GFP_KERNEL); 22336733b39aSJayamohan Kallickal if (!phba->phwi_ctrlr) 22346733b39aSJayamohan Kallickal return -ENOMEM; 22356733b39aSJayamohan Kallickal 22366733b39aSJayamohan Kallickal phba->init_mem = kcalloc(SE_MEM_MAX, sizeof(*mem_descr), 22376733b39aSJayamohan Kallickal GFP_KERNEL); 22386733b39aSJayamohan Kallickal if (!phba->init_mem) { 22396733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 22406733b39aSJayamohan Kallickal return -ENOMEM; 22416733b39aSJayamohan Kallickal } 22426733b39aSJayamohan Kallickal 22436733b39aSJayamohan Kallickal mem_arr_orig = kmalloc(sizeof(*mem_arr_orig) * BEISCSI_MAX_FRAGS_INIT, 22446733b39aSJayamohan Kallickal GFP_KERNEL); 22456733b39aSJayamohan Kallickal if (!mem_arr_orig) { 22466733b39aSJayamohan Kallickal kfree(phba->init_mem); 22476733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 22486733b39aSJayamohan Kallickal return -ENOMEM; 22496733b39aSJayamohan Kallickal } 22506733b39aSJayamohan Kallickal 22516733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 22526733b39aSJayamohan Kallickal for (i = 0; i < SE_MEM_MAX; i++) { 22536733b39aSJayamohan Kallickal j = 0; 22546733b39aSJayamohan Kallickal mem_arr = mem_arr_orig; 22556733b39aSJayamohan Kallickal alloc_size = phba->mem_req[i]; 22566733b39aSJayamohan Kallickal memset(mem_arr, 0, sizeof(struct mem_array) * 22576733b39aSJayamohan Kallickal BEISCSI_MAX_FRAGS_INIT); 22586733b39aSJayamohan Kallickal curr_alloc_size = min(be_max_phys_size * 1024, alloc_size); 22596733b39aSJayamohan Kallickal do { 22606733b39aSJayamohan Kallickal mem_arr->virtual_address = pci_alloc_consistent( 22616733b39aSJayamohan Kallickal phba->pcidev, 22626733b39aSJayamohan Kallickal curr_alloc_size, 22636733b39aSJayamohan Kallickal &bus_add); 22646733b39aSJayamohan Kallickal if (!mem_arr->virtual_address) { 22656733b39aSJayamohan Kallickal if (curr_alloc_size <= BE_MIN_MEM_SIZE) 22666733b39aSJayamohan Kallickal goto free_mem; 22676733b39aSJayamohan Kallickal if (curr_alloc_size - 22686733b39aSJayamohan Kallickal rounddown_pow_of_two(curr_alloc_size)) 22696733b39aSJayamohan Kallickal curr_alloc_size = rounddown_pow_of_two 22706733b39aSJayamohan Kallickal (curr_alloc_size); 22716733b39aSJayamohan Kallickal else 22726733b39aSJayamohan Kallickal curr_alloc_size = curr_alloc_size / 2; 22736733b39aSJayamohan Kallickal } else { 22746733b39aSJayamohan Kallickal mem_arr->bus_address.u. 22756733b39aSJayamohan Kallickal a64.address = (__u64) bus_add; 22766733b39aSJayamohan Kallickal mem_arr->size = curr_alloc_size; 22776733b39aSJayamohan Kallickal alloc_size -= curr_alloc_size; 22786733b39aSJayamohan Kallickal curr_alloc_size = min(be_max_phys_size * 22796733b39aSJayamohan Kallickal 1024, alloc_size); 22806733b39aSJayamohan Kallickal j++; 22816733b39aSJayamohan Kallickal mem_arr++; 22826733b39aSJayamohan Kallickal } 22836733b39aSJayamohan Kallickal } while (alloc_size); 22846733b39aSJayamohan Kallickal mem_descr->num_elements = j; 22856733b39aSJayamohan Kallickal mem_descr->size_in_bytes = phba->mem_req[i]; 22866733b39aSJayamohan Kallickal mem_descr->mem_array = kmalloc(sizeof(*mem_arr) * j, 22876733b39aSJayamohan Kallickal GFP_KERNEL); 22886733b39aSJayamohan Kallickal if (!mem_descr->mem_array) 22896733b39aSJayamohan Kallickal goto free_mem; 22906733b39aSJayamohan Kallickal 22916733b39aSJayamohan Kallickal memcpy(mem_descr->mem_array, mem_arr_orig, 22926733b39aSJayamohan Kallickal sizeof(struct mem_array) * j); 22936733b39aSJayamohan Kallickal mem_descr++; 22946733b39aSJayamohan Kallickal } 22956733b39aSJayamohan Kallickal kfree(mem_arr_orig); 22966733b39aSJayamohan Kallickal return 0; 22976733b39aSJayamohan Kallickal free_mem: 22986733b39aSJayamohan Kallickal mem_descr->num_elements = j; 22996733b39aSJayamohan Kallickal while ((i) || (j)) { 23006733b39aSJayamohan Kallickal for (j = mem_descr->num_elements; j > 0; j--) { 23016733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 23026733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].size, 23036733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1]. 23046733b39aSJayamohan Kallickal virtual_address, 2305457ff3b7SJayamohan Kallickal (unsigned long)mem_descr-> 2306457ff3b7SJayamohan Kallickal mem_array[j - 1]. 23076733b39aSJayamohan Kallickal bus_address.u.a64.address); 23086733b39aSJayamohan Kallickal } 23096733b39aSJayamohan Kallickal if (i) { 23106733b39aSJayamohan Kallickal i--; 23116733b39aSJayamohan Kallickal kfree(mem_descr->mem_array); 23126733b39aSJayamohan Kallickal mem_descr--; 23136733b39aSJayamohan Kallickal } 23146733b39aSJayamohan Kallickal } 23156733b39aSJayamohan Kallickal kfree(mem_arr_orig); 23166733b39aSJayamohan Kallickal kfree(phba->init_mem); 23176733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 23186733b39aSJayamohan Kallickal return -ENOMEM; 23196733b39aSJayamohan Kallickal } 23206733b39aSJayamohan Kallickal 23216733b39aSJayamohan Kallickal static int beiscsi_get_memory(struct beiscsi_hba *phba) 23226733b39aSJayamohan Kallickal { 23236733b39aSJayamohan Kallickal beiscsi_find_mem_req(phba); 23246733b39aSJayamohan Kallickal return beiscsi_alloc_mem(phba); 23256733b39aSJayamohan Kallickal } 23266733b39aSJayamohan Kallickal 23276733b39aSJayamohan Kallickal static void iscsi_init_global_templates(struct beiscsi_hba *phba) 23286733b39aSJayamohan Kallickal { 23296733b39aSJayamohan Kallickal struct pdu_data_out *pdata_out; 23306733b39aSJayamohan Kallickal struct pdu_nop_out *pnop_out; 23316733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 23326733b39aSJayamohan Kallickal 23336733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 23346733b39aSJayamohan Kallickal mem_descr += ISCSI_MEM_GLOBAL_HEADER; 23356733b39aSJayamohan Kallickal pdata_out = 23366733b39aSJayamohan Kallickal (struct pdu_data_out *)mem_descr->mem_array[0].virtual_address; 23376733b39aSJayamohan Kallickal memset(pdata_out, 0, BE_ISCSI_PDU_HEADER_SIZE); 23386733b39aSJayamohan Kallickal 23396733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, opcode, pdata_out, 23406733b39aSJayamohan Kallickal IIOC_SCSI_DATA); 23416733b39aSJayamohan Kallickal 23426733b39aSJayamohan Kallickal pnop_out = 23436733b39aSJayamohan Kallickal (struct pdu_nop_out *)((unsigned char *)mem_descr->mem_array[0]. 23446733b39aSJayamohan Kallickal virtual_address + BE_ISCSI_PDU_HEADER_SIZE); 23456733b39aSJayamohan Kallickal 23466733b39aSJayamohan Kallickal memset(pnop_out, 0, BE_ISCSI_PDU_HEADER_SIZE); 23476733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, ttt, pnop_out, 0xFFFFFFFF); 23486733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, f_bit, pnop_out, 1); 23496733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, i_bit, pnop_out, 0); 23506733b39aSJayamohan Kallickal } 23516733b39aSJayamohan Kallickal 23526733b39aSJayamohan Kallickal static void beiscsi_init_wrb_handle(struct beiscsi_hba *phba) 23536733b39aSJayamohan Kallickal { 23546733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr_wrbh, *mem_descr_wrb; 23556733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 23566733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 23576733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 23586733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb; 23596733b39aSJayamohan Kallickal unsigned int num_cxn_wrbh; 23606733b39aSJayamohan Kallickal unsigned int num_cxn_wrb, j, idx, index; 23616733b39aSJayamohan Kallickal 23626733b39aSJayamohan Kallickal mem_descr_wrbh = phba->init_mem; 23636733b39aSJayamohan Kallickal mem_descr_wrbh += HWI_MEM_WRBH; 23646733b39aSJayamohan Kallickal 23656733b39aSJayamohan Kallickal mem_descr_wrb = phba->init_mem; 23666733b39aSJayamohan Kallickal mem_descr_wrb += HWI_MEM_WRB; 23676733b39aSJayamohan Kallickal 23686733b39aSJayamohan Kallickal idx = 0; 23696733b39aSJayamohan Kallickal pwrb_handle = mem_descr_wrbh->mem_array[idx].virtual_address; 23706733b39aSJayamohan Kallickal num_cxn_wrbh = ((mem_descr_wrbh->mem_array[idx].size) / 23716733b39aSJayamohan Kallickal ((sizeof(struct wrb_handle)) * 23726733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn)); 23736733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 23746733b39aSJayamohan Kallickal 23756733b39aSJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) { 23766733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 23776733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base = 23786733b39aSJayamohan Kallickal kzalloc(sizeof(struct wrb_handle *) * 23796733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn, GFP_KERNEL); 23806733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd = 23816733b39aSJayamohan Kallickal kzalloc(sizeof(struct wrb_handle *) * 23826733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn, GFP_KERNEL); 23836733b39aSJayamohan Kallickal if (num_cxn_wrbh) { 23846733b39aSJayamohan Kallickal pwrb_context->alloc_index = 0; 23856733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available = 0; 23866733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 23876733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base[j] = pwrb_handle; 23886733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd[j] = 23896733b39aSJayamohan Kallickal pwrb_handle; 23906733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available++; 2391bfead3b2SJayamohan Kallickal pwrb_handle->wrb_index = j; 23926733b39aSJayamohan Kallickal pwrb_handle++; 23936733b39aSJayamohan Kallickal } 23946733b39aSJayamohan Kallickal pwrb_context->free_index = 0; 23956733b39aSJayamohan Kallickal num_cxn_wrbh--; 23966733b39aSJayamohan Kallickal } else { 23976733b39aSJayamohan Kallickal idx++; 23986733b39aSJayamohan Kallickal pwrb_handle = 23996733b39aSJayamohan Kallickal mem_descr_wrbh->mem_array[idx].virtual_address; 24006733b39aSJayamohan Kallickal num_cxn_wrbh = 24016733b39aSJayamohan Kallickal ((mem_descr_wrbh->mem_array[idx].size) / 24026733b39aSJayamohan Kallickal ((sizeof(struct wrb_handle)) * 24036733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn)); 24046733b39aSJayamohan Kallickal pwrb_context->alloc_index = 0; 24056733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 24066733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base[j] = pwrb_handle; 24076733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd[j] = 24086733b39aSJayamohan Kallickal pwrb_handle; 24096733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available++; 2410bfead3b2SJayamohan Kallickal pwrb_handle->wrb_index = j; 24116733b39aSJayamohan Kallickal pwrb_handle++; 24126733b39aSJayamohan Kallickal } 24136733b39aSJayamohan Kallickal pwrb_context->free_index = 0; 24146733b39aSJayamohan Kallickal num_cxn_wrbh--; 24156733b39aSJayamohan Kallickal } 24166733b39aSJayamohan Kallickal } 24176733b39aSJayamohan Kallickal idx = 0; 24186733b39aSJayamohan Kallickal pwrb = mem_descr_wrb->mem_array[idx].virtual_address; 24197c56533cSJayamohan Kallickal num_cxn_wrb = (mem_descr_wrb->mem_array[idx].size) / 24207c56533cSJayamohan Kallickal ((sizeof(struct iscsi_wrb) * 24217c56533cSJayamohan Kallickal phba->params.wrbs_per_cxn)); 2422ed58ea2aSJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) { 24236733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 24246733b39aSJayamohan Kallickal if (num_cxn_wrb) { 24256733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 24266733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[j]; 24276733b39aSJayamohan Kallickal pwrb_handle->pwrb = pwrb; 24286733b39aSJayamohan Kallickal pwrb++; 24296733b39aSJayamohan Kallickal } 24306733b39aSJayamohan Kallickal num_cxn_wrb--; 24316733b39aSJayamohan Kallickal } else { 24326733b39aSJayamohan Kallickal idx++; 24336733b39aSJayamohan Kallickal pwrb = mem_descr_wrb->mem_array[idx].virtual_address; 24347c56533cSJayamohan Kallickal num_cxn_wrb = (mem_descr_wrb->mem_array[idx].size) / 24357c56533cSJayamohan Kallickal ((sizeof(struct iscsi_wrb) * 24367c56533cSJayamohan Kallickal phba->params.wrbs_per_cxn)); 24376733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 24386733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[j]; 24396733b39aSJayamohan Kallickal pwrb_handle->pwrb = pwrb; 24406733b39aSJayamohan Kallickal pwrb++; 24416733b39aSJayamohan Kallickal } 24426733b39aSJayamohan Kallickal num_cxn_wrb--; 24436733b39aSJayamohan Kallickal } 24446733b39aSJayamohan Kallickal } 24456733b39aSJayamohan Kallickal } 24466733b39aSJayamohan Kallickal 24476733b39aSJayamohan Kallickal static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba) 24486733b39aSJayamohan Kallickal { 24496733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 24506733b39aSJayamohan Kallickal struct hba_parameters *p = &phba->params; 24516733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 24526733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_header_h, *pasync_data_h; 24536733b39aSJayamohan Kallickal unsigned int index; 24546733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 24556733b39aSJayamohan Kallickal 24566733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 24576733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_PDU_CONTEXT; 24586733b39aSJayamohan Kallickal 24596733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 24606733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt->pasync_ctx = (struct hwi_async_pdu_context *) 24616733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 24626733b39aSJayamohan Kallickal pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx; 24636733b39aSJayamohan Kallickal memset(pasync_ctx, 0, sizeof(*pasync_ctx)); 24646733b39aSJayamohan Kallickal 24656733b39aSJayamohan Kallickal pasync_ctx->async_header.num_entries = p->asyncpdus_per_ctrl; 24666733b39aSJayamohan Kallickal pasync_ctx->async_header.buffer_size = p->defpdu_hdr_sz; 24676733b39aSJayamohan Kallickal pasync_ctx->async_data.buffer_size = p->defpdu_data_sz; 24686733b39aSJayamohan Kallickal pasync_ctx->async_data.num_entries = p->asyncpdus_per_ctrl; 24696733b39aSJayamohan Kallickal 24706733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 24716733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_BUF; 24726733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 24736733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 24746733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_BUF" 24756733b39aSJayamohan Kallickal "va=%p\n", mem_descr->mem_array[0].virtual_address); 24766733b39aSJayamohan Kallickal } else 24776733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 24786733b39aSJayamohan Kallickal "No Virtual address\n"); 24796733b39aSJayamohan Kallickal 24806733b39aSJayamohan Kallickal pasync_ctx->async_header.va_base = 24816733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 24826733b39aSJayamohan Kallickal 24836733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address = 24846733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a64.address; 24856733b39aSJayamohan Kallickal 24866733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 24876733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_RING; 24886733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 24896733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 24906733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_RING" 24916733b39aSJayamohan Kallickal "va=%p\n", mem_descr->mem_array[0].virtual_address); 24926733b39aSJayamohan Kallickal } else 24936733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 24946733b39aSJayamohan Kallickal "No Virtual address\n"); 24956733b39aSJayamohan Kallickal pasync_ctx->async_header.ring_base = 24966733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 24976733b39aSJayamohan Kallickal 24986733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 24996733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE; 25006733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 25016733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 25026733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_HANDLE" 25036733b39aSJayamohan Kallickal "va=%p\n", mem_descr->mem_array[0].virtual_address); 25046733b39aSJayamohan Kallickal } else 25056733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 25066733b39aSJayamohan Kallickal "No Virtual address\n"); 25076733b39aSJayamohan Kallickal 25086733b39aSJayamohan Kallickal pasync_ctx->async_header.handle_base = 25096733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 25106733b39aSJayamohan Kallickal pasync_ctx->async_header.writables = 0; 25116733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_header.free_list); 25126733b39aSJayamohan Kallickal 25136733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 25146733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_BUF; 25156733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 25166733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 25176733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_BUF" 25186733b39aSJayamohan Kallickal "va=%p\n", mem_descr->mem_array[0].virtual_address); 25196733b39aSJayamohan Kallickal } else 25206733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 25216733b39aSJayamohan Kallickal "No Virtual address\n"); 25226733b39aSJayamohan Kallickal pasync_ctx->async_data.va_base = 25236733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 25246733b39aSJayamohan Kallickal pasync_ctx->async_data.pa_base.u.a64.address = 25256733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a64.address; 25266733b39aSJayamohan Kallickal 25276733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 25286733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_RING; 25296733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 25306733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 25316733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_RING" 25326733b39aSJayamohan Kallickal "va=%p\n", mem_descr->mem_array[0].virtual_address); 25336733b39aSJayamohan Kallickal } else 25346733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 25356733b39aSJayamohan Kallickal "No Virtual address\n"); 25366733b39aSJayamohan Kallickal 25376733b39aSJayamohan Kallickal pasync_ctx->async_data.ring_base = 25386733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 25396733b39aSJayamohan Kallickal 25406733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 25416733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_HANDLE; 25426733b39aSJayamohan Kallickal if (!mem_descr->mem_array[0].virtual_address) 25436733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 25446733b39aSJayamohan Kallickal "No Virtual address\n"); 25456733b39aSJayamohan Kallickal 25466733b39aSJayamohan Kallickal pasync_ctx->async_data.handle_base = 25476733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 25486733b39aSJayamohan Kallickal pasync_ctx->async_data.writables = 0; 25496733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_data.free_list); 25506733b39aSJayamohan Kallickal 25516733b39aSJayamohan Kallickal pasync_header_h = 25526733b39aSJayamohan Kallickal (struct async_pdu_handle *)pasync_ctx->async_header.handle_base; 25536733b39aSJayamohan Kallickal pasync_data_h = 25546733b39aSJayamohan Kallickal (struct async_pdu_handle *)pasync_ctx->async_data.handle_base; 25556733b39aSJayamohan Kallickal 25566733b39aSJayamohan Kallickal for (index = 0; index < p->asyncpdus_per_ctrl; index++) { 25576733b39aSJayamohan Kallickal pasync_header_h->cri = -1; 25586733b39aSJayamohan Kallickal pasync_header_h->index = (char)index; 25596733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_header_h->link); 25606733b39aSJayamohan Kallickal pasync_header_h->pbuffer = 25616733b39aSJayamohan Kallickal (void *)((unsigned long) 25626733b39aSJayamohan Kallickal (pasync_ctx->async_header.va_base) + 25636733b39aSJayamohan Kallickal (p->defpdu_hdr_sz * index)); 25646733b39aSJayamohan Kallickal 25656733b39aSJayamohan Kallickal pasync_header_h->pa.u.a64.address = 25666733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address + 25676733b39aSJayamohan Kallickal (p->defpdu_hdr_sz * index); 25686733b39aSJayamohan Kallickal 25696733b39aSJayamohan Kallickal list_add_tail(&pasync_header_h->link, 25706733b39aSJayamohan Kallickal &pasync_ctx->async_header.free_list); 25716733b39aSJayamohan Kallickal pasync_header_h++; 25726733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries++; 25736733b39aSJayamohan Kallickal pasync_ctx->async_header.writables++; 25746733b39aSJayamohan Kallickal 25756733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index].wait_queue.list); 25766733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index]. 25776733b39aSJayamohan Kallickal header_busy_list); 25786733b39aSJayamohan Kallickal pasync_data_h->cri = -1; 25796733b39aSJayamohan Kallickal pasync_data_h->index = (char)index; 25806733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_data_h->link); 25816733b39aSJayamohan Kallickal pasync_data_h->pbuffer = 25826733b39aSJayamohan Kallickal (void *)((unsigned long) 25836733b39aSJayamohan Kallickal (pasync_ctx->async_data.va_base) + 25846733b39aSJayamohan Kallickal (p->defpdu_data_sz * index)); 25856733b39aSJayamohan Kallickal 25866733b39aSJayamohan Kallickal pasync_data_h->pa.u.a64.address = 25876733b39aSJayamohan Kallickal pasync_ctx->async_data.pa_base.u.a64.address + 25886733b39aSJayamohan Kallickal (p->defpdu_data_sz * index); 25896733b39aSJayamohan Kallickal 25906733b39aSJayamohan Kallickal list_add_tail(&pasync_data_h->link, 25916733b39aSJayamohan Kallickal &pasync_ctx->async_data.free_list); 25926733b39aSJayamohan Kallickal pasync_data_h++; 25936733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries++; 25946733b39aSJayamohan Kallickal pasync_ctx->async_data.writables++; 25956733b39aSJayamohan Kallickal 25966733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index].data_busy_list); 25976733b39aSJayamohan Kallickal } 25986733b39aSJayamohan Kallickal 25996733b39aSJayamohan Kallickal pasync_ctx->async_header.host_write_ptr = 0; 26006733b39aSJayamohan Kallickal pasync_ctx->async_header.ep_read_ptr = -1; 26016733b39aSJayamohan Kallickal pasync_ctx->async_data.host_write_ptr = 0; 26026733b39aSJayamohan Kallickal pasync_ctx->async_data.ep_read_ptr = -1; 26036733b39aSJayamohan Kallickal } 26046733b39aSJayamohan Kallickal 26056733b39aSJayamohan Kallickal static int 26066733b39aSJayamohan Kallickal be_sgl_create_contiguous(void *virtual_address, 26076733b39aSJayamohan Kallickal u64 physical_address, u32 length, 26086733b39aSJayamohan Kallickal struct be_dma_mem *sgl) 26096733b39aSJayamohan Kallickal { 26106733b39aSJayamohan Kallickal WARN_ON(!virtual_address); 26116733b39aSJayamohan Kallickal WARN_ON(!physical_address); 26126733b39aSJayamohan Kallickal WARN_ON(!length > 0); 26136733b39aSJayamohan Kallickal WARN_ON(!sgl); 26146733b39aSJayamohan Kallickal 26156733b39aSJayamohan Kallickal sgl->va = virtual_address; 2616457ff3b7SJayamohan Kallickal sgl->dma = (unsigned long)physical_address; 26176733b39aSJayamohan Kallickal sgl->size = length; 26186733b39aSJayamohan Kallickal 26196733b39aSJayamohan Kallickal return 0; 26206733b39aSJayamohan Kallickal } 26216733b39aSJayamohan Kallickal 26226733b39aSJayamohan Kallickal static void be_sgl_destroy_contiguous(struct be_dma_mem *sgl) 26236733b39aSJayamohan Kallickal { 26246733b39aSJayamohan Kallickal memset(sgl, 0, sizeof(*sgl)); 26256733b39aSJayamohan Kallickal } 26266733b39aSJayamohan Kallickal 26276733b39aSJayamohan Kallickal static void 26286733b39aSJayamohan Kallickal hwi_build_be_sgl_arr(struct beiscsi_hba *phba, 26296733b39aSJayamohan Kallickal struct mem_array *pmem, struct be_dma_mem *sgl) 26306733b39aSJayamohan Kallickal { 26316733b39aSJayamohan Kallickal if (sgl->va) 26326733b39aSJayamohan Kallickal be_sgl_destroy_contiguous(sgl); 26336733b39aSJayamohan Kallickal 26346733b39aSJayamohan Kallickal be_sgl_create_contiguous(pmem->virtual_address, 26356733b39aSJayamohan Kallickal pmem->bus_address.u.a64.address, 26366733b39aSJayamohan Kallickal pmem->size, sgl); 26376733b39aSJayamohan Kallickal } 26386733b39aSJayamohan Kallickal 26396733b39aSJayamohan Kallickal static void 26406733b39aSJayamohan Kallickal hwi_build_be_sgl_by_offset(struct beiscsi_hba *phba, 26416733b39aSJayamohan Kallickal struct mem_array *pmem, struct be_dma_mem *sgl) 26426733b39aSJayamohan Kallickal { 26436733b39aSJayamohan Kallickal if (sgl->va) 26446733b39aSJayamohan Kallickal be_sgl_destroy_contiguous(sgl); 26456733b39aSJayamohan Kallickal 26466733b39aSJayamohan Kallickal be_sgl_create_contiguous((unsigned char *)pmem->virtual_address, 26476733b39aSJayamohan Kallickal pmem->bus_address.u.a64.address, 26486733b39aSJayamohan Kallickal pmem->size, sgl); 26496733b39aSJayamohan Kallickal } 26506733b39aSJayamohan Kallickal 26516733b39aSJayamohan Kallickal static int be_fill_queue(struct be_queue_info *q, 26526733b39aSJayamohan Kallickal u16 len, u16 entry_size, void *vaddress) 26536733b39aSJayamohan Kallickal { 26546733b39aSJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 26556733b39aSJayamohan Kallickal 26566733b39aSJayamohan Kallickal memset(q, 0, sizeof(*q)); 26576733b39aSJayamohan Kallickal q->len = len; 26586733b39aSJayamohan Kallickal q->entry_size = entry_size; 26596733b39aSJayamohan Kallickal mem->size = len * entry_size; 26606733b39aSJayamohan Kallickal mem->va = vaddress; 26616733b39aSJayamohan Kallickal if (!mem->va) 26626733b39aSJayamohan Kallickal return -ENOMEM; 26636733b39aSJayamohan Kallickal memset(mem->va, 0, mem->size); 26646733b39aSJayamohan Kallickal return 0; 26656733b39aSJayamohan Kallickal } 26666733b39aSJayamohan Kallickal 2667bfead3b2SJayamohan Kallickal static int beiscsi_create_eqs(struct beiscsi_hba *phba, 26686733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context) 26696733b39aSJayamohan Kallickal { 2670bfead3b2SJayamohan Kallickal unsigned int i, num_eq_pages; 2671bfead3b2SJayamohan Kallickal int ret, eq_for_mcc; 26726733b39aSJayamohan Kallickal struct be_queue_info *eq; 26736733b39aSJayamohan Kallickal struct be_dma_mem *mem; 26746733b39aSJayamohan Kallickal void *eq_vaddress; 2675bfead3b2SJayamohan Kallickal dma_addr_t paddr; 26766733b39aSJayamohan Kallickal 2677bfead3b2SJayamohan Kallickal num_eq_pages = PAGES_REQUIRED(phba->params.num_eq_entries * \ 2678bfead3b2SJayamohan Kallickal sizeof(struct be_eq_entry)); 2679bfead3b2SJayamohan Kallickal 2680bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 2681bfead3b2SJayamohan Kallickal eq_for_mcc = 1; 2682bfead3b2SJayamohan Kallickal else 2683bfead3b2SJayamohan Kallickal eq_for_mcc = 0; 2684bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) { 2685bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 26866733b39aSJayamohan Kallickal mem = &eq->dma_mem; 2687bfead3b2SJayamohan Kallickal phwi_context->be_eq[i].phba = phba; 2688bfead3b2SJayamohan Kallickal eq_vaddress = pci_alloc_consistent(phba->pcidev, 2689bfead3b2SJayamohan Kallickal num_eq_pages * PAGE_SIZE, 2690bfead3b2SJayamohan Kallickal &paddr); 2691bfead3b2SJayamohan Kallickal if (!eq_vaddress) 2692bfead3b2SJayamohan Kallickal goto create_eq_error; 26936733b39aSJayamohan Kallickal 2694bfead3b2SJayamohan Kallickal mem->va = eq_vaddress; 26956733b39aSJayamohan Kallickal ret = be_fill_queue(eq, phba->params.num_eq_entries, 26966733b39aSJayamohan Kallickal sizeof(struct be_eq_entry), eq_vaddress); 26976733b39aSJayamohan Kallickal if (ret) { 26986733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 26996733b39aSJayamohan Kallickal "be_fill_queue Failed for EQ\n"); 2700bfead3b2SJayamohan Kallickal goto create_eq_error; 27016733b39aSJayamohan Kallickal } 27026733b39aSJayamohan Kallickal 2703bfead3b2SJayamohan Kallickal mem->dma = paddr; 27046733b39aSJayamohan Kallickal ret = beiscsi_cmd_eq_create(&phba->ctrl, eq, 2705bfead3b2SJayamohan Kallickal phwi_context->cur_eqd); 27066733b39aSJayamohan Kallickal if (ret) { 2707bfead3b2SJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 2708bfead3b2SJayamohan Kallickal "beiscsi_cmd_eq_create" 27096733b39aSJayamohan Kallickal "Failedfor EQ\n"); 2710bfead3b2SJayamohan Kallickal goto create_eq_error; 2711bfead3b2SJayamohan Kallickal } 2712bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "eqid = %d\n", phwi_context->be_eq[i].q.id); 2713bfead3b2SJayamohan Kallickal } 2714bfead3b2SJayamohan Kallickal return 0; 2715bfead3b2SJayamohan Kallickal create_eq_error: 2716bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + 1); i++) { 2717bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 2718bfead3b2SJayamohan Kallickal mem = &eq->dma_mem; 2719bfead3b2SJayamohan Kallickal if (mem->va) 2720bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, num_eq_pages 2721bfead3b2SJayamohan Kallickal * PAGE_SIZE, 2722bfead3b2SJayamohan Kallickal mem->va, mem->dma); 2723bfead3b2SJayamohan Kallickal } 27246733b39aSJayamohan Kallickal return ret; 27256733b39aSJayamohan Kallickal } 27266733b39aSJayamohan Kallickal 2727bfead3b2SJayamohan Kallickal static int beiscsi_create_cqs(struct beiscsi_hba *phba, 27286733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context) 27296733b39aSJayamohan Kallickal { 2730bfead3b2SJayamohan Kallickal unsigned int i, num_cq_pages; 27316733b39aSJayamohan Kallickal int ret; 27326733b39aSJayamohan Kallickal struct be_queue_info *cq, *eq; 27336733b39aSJayamohan Kallickal struct be_dma_mem *mem; 2734bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 27356733b39aSJayamohan Kallickal void *cq_vaddress; 2736bfead3b2SJayamohan Kallickal dma_addr_t paddr; 27376733b39aSJayamohan Kallickal 2738bfead3b2SJayamohan Kallickal num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \ 2739bfead3b2SJayamohan Kallickal sizeof(struct sol_cqe)); 2740bfead3b2SJayamohan Kallickal 2741bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 2742bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[i]; 2743bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 2744bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 2745bfead3b2SJayamohan Kallickal pbe_eq->cq = cq; 2746bfead3b2SJayamohan Kallickal pbe_eq->phba = phba; 27476733b39aSJayamohan Kallickal mem = &cq->dma_mem; 2748bfead3b2SJayamohan Kallickal cq_vaddress = pci_alloc_consistent(phba->pcidev, 2749bfead3b2SJayamohan Kallickal num_cq_pages * PAGE_SIZE, 2750bfead3b2SJayamohan Kallickal &paddr); 2751bfead3b2SJayamohan Kallickal if (!cq_vaddress) 2752bfead3b2SJayamohan Kallickal goto create_cq_error; 27537da50879SJayamohan Kallickal ret = be_fill_queue(cq, phba->params.num_cq_entries, 27546733b39aSJayamohan Kallickal sizeof(struct sol_cqe), cq_vaddress); 27556733b39aSJayamohan Kallickal if (ret) { 27566733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 27576733b39aSJayamohan Kallickal "be_fill_queue Failed for ISCSI CQ\n"); 2758bfead3b2SJayamohan Kallickal goto create_cq_error; 27596733b39aSJayamohan Kallickal } 27606733b39aSJayamohan Kallickal 2761bfead3b2SJayamohan Kallickal mem->dma = paddr; 2762bfead3b2SJayamohan Kallickal ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false, 2763bfead3b2SJayamohan Kallickal false, 0); 27646733b39aSJayamohan Kallickal if (ret) { 27656733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 2766bfead3b2SJayamohan Kallickal "beiscsi_cmd_eq_create" 2767bfead3b2SJayamohan Kallickal "Failed for ISCSI CQ\n"); 2768bfead3b2SJayamohan Kallickal goto create_cq_error; 27696733b39aSJayamohan Kallickal } 2770bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "iscsi cq_id is %d for eq_id %d\n", 2771bfead3b2SJayamohan Kallickal cq->id, eq->id); 27726733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "ISCSI CQ CREATED\n"); 2773bfead3b2SJayamohan Kallickal } 27746733b39aSJayamohan Kallickal return 0; 2775bfead3b2SJayamohan Kallickal 2776bfead3b2SJayamohan Kallickal create_cq_error: 2777bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 2778bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[i]; 2779bfead3b2SJayamohan Kallickal mem = &cq->dma_mem; 2780bfead3b2SJayamohan Kallickal if (mem->va) 2781bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, num_cq_pages 2782bfead3b2SJayamohan Kallickal * PAGE_SIZE, 2783bfead3b2SJayamohan Kallickal mem->va, mem->dma); 2784bfead3b2SJayamohan Kallickal } 2785bfead3b2SJayamohan Kallickal return ret; 2786bfead3b2SJayamohan Kallickal 27876733b39aSJayamohan Kallickal } 27886733b39aSJayamohan Kallickal 27896733b39aSJayamohan Kallickal static int 27906733b39aSJayamohan Kallickal beiscsi_create_def_hdr(struct beiscsi_hba *phba, 27916733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 27926733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr, 27936733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz) 27946733b39aSJayamohan Kallickal { 27956733b39aSJayamohan Kallickal unsigned int idx; 27966733b39aSJayamohan Kallickal int ret; 27976733b39aSJayamohan Kallickal struct be_queue_info *dq, *cq; 27986733b39aSJayamohan Kallickal struct be_dma_mem *mem; 27996733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 28006733b39aSJayamohan Kallickal void *dq_vaddress; 28016733b39aSJayamohan Kallickal 28026733b39aSJayamohan Kallickal idx = 0; 28036733b39aSJayamohan Kallickal dq = &phwi_context->be_def_hdrq; 2804bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 28056733b39aSJayamohan Kallickal mem = &dq->dma_mem; 28066733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 28076733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_RING; 28086733b39aSJayamohan Kallickal dq_vaddress = mem_descr->mem_array[idx].virtual_address; 28096733b39aSJayamohan Kallickal ret = be_fill_queue(dq, mem_descr->mem_array[0].size / 28106733b39aSJayamohan Kallickal sizeof(struct phys_addr), 28116733b39aSJayamohan Kallickal sizeof(struct phys_addr), dq_vaddress); 28126733b39aSJayamohan Kallickal if (ret) { 28136733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 28146733b39aSJayamohan Kallickal "be_fill_queue Failed for DEF PDU HDR\n"); 28156733b39aSJayamohan Kallickal return ret; 28166733b39aSJayamohan Kallickal } 2817457ff3b7SJayamohan Kallickal mem->dma = (unsigned long)mem_descr->mem_array[idx]. 2818457ff3b7SJayamohan Kallickal bus_address.u.a64.address; 28196733b39aSJayamohan Kallickal ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dq, 28206733b39aSJayamohan Kallickal def_pdu_ring_sz, 28216733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz); 28226733b39aSJayamohan Kallickal if (ret) { 28236733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 28246733b39aSJayamohan Kallickal "be_cmd_create_default_pdu_queue Failed DEFHDR\n"); 28256733b39aSJayamohan Kallickal return ret; 28266733b39aSJayamohan Kallickal } 28276733b39aSJayamohan Kallickal phwi_ctrlr->default_pdu_hdr.id = phwi_context->be_def_hdrq.id; 28286733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "iscsi def pdu id is %d\n", 28296733b39aSJayamohan Kallickal phwi_context->be_def_hdrq.id); 28306733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, 1); 28316733b39aSJayamohan Kallickal return 0; 28326733b39aSJayamohan Kallickal } 28336733b39aSJayamohan Kallickal 28346733b39aSJayamohan Kallickal static int 28356733b39aSJayamohan Kallickal beiscsi_create_def_data(struct beiscsi_hba *phba, 28366733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 28376733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr, 28386733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz) 28396733b39aSJayamohan Kallickal { 28406733b39aSJayamohan Kallickal unsigned int idx; 28416733b39aSJayamohan Kallickal int ret; 28426733b39aSJayamohan Kallickal struct be_queue_info *dataq, *cq; 28436733b39aSJayamohan Kallickal struct be_dma_mem *mem; 28446733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 28456733b39aSJayamohan Kallickal void *dq_vaddress; 28466733b39aSJayamohan Kallickal 28476733b39aSJayamohan Kallickal idx = 0; 28486733b39aSJayamohan Kallickal dataq = &phwi_context->be_def_dataq; 2849bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 28506733b39aSJayamohan Kallickal mem = &dataq->dma_mem; 28516733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 28526733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_RING; 28536733b39aSJayamohan Kallickal dq_vaddress = mem_descr->mem_array[idx].virtual_address; 28546733b39aSJayamohan Kallickal ret = be_fill_queue(dataq, mem_descr->mem_array[0].size / 28556733b39aSJayamohan Kallickal sizeof(struct phys_addr), 28566733b39aSJayamohan Kallickal sizeof(struct phys_addr), dq_vaddress); 28576733b39aSJayamohan Kallickal if (ret) { 28586733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 28596733b39aSJayamohan Kallickal "be_fill_queue Failed for DEF PDU DATA\n"); 28606733b39aSJayamohan Kallickal return ret; 28616733b39aSJayamohan Kallickal } 2862457ff3b7SJayamohan Kallickal mem->dma = (unsigned long)mem_descr->mem_array[idx]. 2863457ff3b7SJayamohan Kallickal bus_address.u.a64.address; 28646733b39aSJayamohan Kallickal ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dataq, 28656733b39aSJayamohan Kallickal def_pdu_ring_sz, 28666733b39aSJayamohan Kallickal phba->params.defpdu_data_sz); 28676733b39aSJayamohan Kallickal if (ret) { 28686733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 28696733b39aSJayamohan Kallickal "be_cmd_create_default_pdu_queue Failed" 28706733b39aSJayamohan Kallickal " for DEF PDU DATA\n"); 28716733b39aSJayamohan Kallickal return ret; 28726733b39aSJayamohan Kallickal } 28736733b39aSJayamohan Kallickal phwi_ctrlr->default_pdu_data.id = phwi_context->be_def_dataq.id; 28746733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "iscsi def data id is %d\n", 28756733b39aSJayamohan Kallickal phwi_context->be_def_dataq.id); 28766733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, 0); 28776733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "DEFAULT PDU DATA RING CREATED\n"); 28786733b39aSJayamohan Kallickal return 0; 28796733b39aSJayamohan Kallickal } 28806733b39aSJayamohan Kallickal 28816733b39aSJayamohan Kallickal static int 28826733b39aSJayamohan Kallickal beiscsi_post_pages(struct beiscsi_hba *phba) 28836733b39aSJayamohan Kallickal { 28846733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 28856733b39aSJayamohan Kallickal struct mem_array *pm_arr; 28866733b39aSJayamohan Kallickal unsigned int page_offset, i; 28876733b39aSJayamohan Kallickal struct be_dma_mem sgl; 28886733b39aSJayamohan Kallickal int status; 28896733b39aSJayamohan Kallickal 28906733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 28916733b39aSJayamohan Kallickal mem_descr += HWI_MEM_SGE; 28926733b39aSJayamohan Kallickal pm_arr = mem_descr->mem_array; 28936733b39aSJayamohan Kallickal 28946733b39aSJayamohan Kallickal page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io * 28956733b39aSJayamohan Kallickal phba->fw_config.iscsi_icd_start) / PAGE_SIZE; 28966733b39aSJayamohan Kallickal for (i = 0; i < mem_descr->num_elements; i++) { 28976733b39aSJayamohan Kallickal hwi_build_be_sgl_arr(phba, pm_arr, &sgl); 28986733b39aSJayamohan Kallickal status = be_cmd_iscsi_post_sgl_pages(&phba->ctrl, &sgl, 28996733b39aSJayamohan Kallickal page_offset, 29006733b39aSJayamohan Kallickal (pm_arr->size / PAGE_SIZE)); 29016733b39aSJayamohan Kallickal page_offset += pm_arr->size / PAGE_SIZE; 29026733b39aSJayamohan Kallickal if (status != 0) { 29036733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 29046733b39aSJayamohan Kallickal "post sgl failed.\n"); 29056733b39aSJayamohan Kallickal return status; 29066733b39aSJayamohan Kallickal } 29076733b39aSJayamohan Kallickal pm_arr++; 29086733b39aSJayamohan Kallickal } 29096733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "POSTED PAGES\n"); 29106733b39aSJayamohan Kallickal return 0; 29116733b39aSJayamohan Kallickal } 29126733b39aSJayamohan Kallickal 2913bfead3b2SJayamohan Kallickal static void be_queue_free(struct beiscsi_hba *phba, struct be_queue_info *q) 2914bfead3b2SJayamohan Kallickal { 2915bfead3b2SJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 2916bfead3b2SJayamohan Kallickal if (mem->va) 2917bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, mem->size, 2918bfead3b2SJayamohan Kallickal mem->va, mem->dma); 2919bfead3b2SJayamohan Kallickal } 2920bfead3b2SJayamohan Kallickal 2921bfead3b2SJayamohan Kallickal static int be_queue_alloc(struct beiscsi_hba *phba, struct be_queue_info *q, 2922bfead3b2SJayamohan Kallickal u16 len, u16 entry_size) 2923bfead3b2SJayamohan Kallickal { 2924bfead3b2SJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 2925bfead3b2SJayamohan Kallickal 2926bfead3b2SJayamohan Kallickal memset(q, 0, sizeof(*q)); 2927bfead3b2SJayamohan Kallickal q->len = len; 2928bfead3b2SJayamohan Kallickal q->entry_size = entry_size; 2929bfead3b2SJayamohan Kallickal mem->size = len * entry_size; 2930bfead3b2SJayamohan Kallickal mem->va = pci_alloc_consistent(phba->pcidev, mem->size, &mem->dma); 2931bfead3b2SJayamohan Kallickal if (!mem->va) 2932d3ad2bb3SJayamohan Kallickal return -ENOMEM; 2933bfead3b2SJayamohan Kallickal memset(mem->va, 0, mem->size); 2934bfead3b2SJayamohan Kallickal return 0; 2935bfead3b2SJayamohan Kallickal } 2936bfead3b2SJayamohan Kallickal 29376733b39aSJayamohan Kallickal static int 29386733b39aSJayamohan Kallickal beiscsi_create_wrb_rings(struct beiscsi_hba *phba, 29396733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 29406733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr) 29416733b39aSJayamohan Kallickal { 29426733b39aSJayamohan Kallickal unsigned int wrb_mem_index, offset, size, num_wrb_rings; 29436733b39aSJayamohan Kallickal u64 pa_addr_lo; 29446733b39aSJayamohan Kallickal unsigned int idx, num, i; 29456733b39aSJayamohan Kallickal struct mem_array *pwrb_arr; 29466733b39aSJayamohan Kallickal void *wrb_vaddr; 29476733b39aSJayamohan Kallickal struct be_dma_mem sgl; 29486733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 29496733b39aSJayamohan Kallickal int status; 29506733b39aSJayamohan Kallickal 29516733b39aSJayamohan Kallickal idx = 0; 29526733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 29536733b39aSJayamohan Kallickal mem_descr += HWI_MEM_WRB; 29546733b39aSJayamohan Kallickal pwrb_arr = kmalloc(sizeof(*pwrb_arr) * phba->params.cxns_per_ctrl, 29556733b39aSJayamohan Kallickal GFP_KERNEL); 29566733b39aSJayamohan Kallickal if (!pwrb_arr) { 29576733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 29586733b39aSJayamohan Kallickal "Memory alloc failed in create wrb ring.\n"); 29596733b39aSJayamohan Kallickal return -ENOMEM; 29606733b39aSJayamohan Kallickal } 29616733b39aSJayamohan Kallickal wrb_vaddr = mem_descr->mem_array[idx].virtual_address; 29626733b39aSJayamohan Kallickal pa_addr_lo = mem_descr->mem_array[idx].bus_address.u.a64.address; 29636733b39aSJayamohan Kallickal num_wrb_rings = mem_descr->mem_array[idx].size / 29646733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn * sizeof(struct iscsi_wrb)); 29656733b39aSJayamohan Kallickal 29666733b39aSJayamohan Kallickal for (num = 0; num < phba->params.cxns_per_ctrl; num++) { 29676733b39aSJayamohan Kallickal if (num_wrb_rings) { 29686733b39aSJayamohan Kallickal pwrb_arr[num].virtual_address = wrb_vaddr; 29696733b39aSJayamohan Kallickal pwrb_arr[num].bus_address.u.a64.address = pa_addr_lo; 29706733b39aSJayamohan Kallickal pwrb_arr[num].size = phba->params.wrbs_per_cxn * 29716733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb); 29726733b39aSJayamohan Kallickal wrb_vaddr += pwrb_arr[num].size; 29736733b39aSJayamohan Kallickal pa_addr_lo += pwrb_arr[num].size; 29746733b39aSJayamohan Kallickal num_wrb_rings--; 29756733b39aSJayamohan Kallickal } else { 29766733b39aSJayamohan Kallickal idx++; 29776733b39aSJayamohan Kallickal wrb_vaddr = mem_descr->mem_array[idx].virtual_address; 29786733b39aSJayamohan Kallickal pa_addr_lo = mem_descr->mem_array[idx].\ 29796733b39aSJayamohan Kallickal bus_address.u.a64.address; 29806733b39aSJayamohan Kallickal num_wrb_rings = mem_descr->mem_array[idx].size / 29816733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn * 29826733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb)); 29836733b39aSJayamohan Kallickal pwrb_arr[num].virtual_address = wrb_vaddr; 29846733b39aSJayamohan Kallickal pwrb_arr[num].bus_address.u.a64.address\ 29856733b39aSJayamohan Kallickal = pa_addr_lo; 29866733b39aSJayamohan Kallickal pwrb_arr[num].size = phba->params.wrbs_per_cxn * 29876733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb); 29886733b39aSJayamohan Kallickal wrb_vaddr += pwrb_arr[num].size; 29896733b39aSJayamohan Kallickal pa_addr_lo += pwrb_arr[num].size; 29906733b39aSJayamohan Kallickal num_wrb_rings--; 29916733b39aSJayamohan Kallickal } 29926733b39aSJayamohan Kallickal } 29936733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 29946733b39aSJayamohan Kallickal wrb_mem_index = 0; 29956733b39aSJayamohan Kallickal offset = 0; 29966733b39aSJayamohan Kallickal size = 0; 29976733b39aSJayamohan Kallickal 29986733b39aSJayamohan Kallickal hwi_build_be_sgl_by_offset(phba, &pwrb_arr[i], &sgl); 29996733b39aSJayamohan Kallickal status = be_cmd_wrbq_create(&phba->ctrl, &sgl, 30006733b39aSJayamohan Kallickal &phwi_context->be_wrbq[i]); 30016733b39aSJayamohan Kallickal if (status != 0) { 30026733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 30036733b39aSJayamohan Kallickal "wrbq create failed."); 30041462b8ffSDan Carpenter kfree(pwrb_arr); 30056733b39aSJayamohan Kallickal return status; 30066733b39aSJayamohan Kallickal } 30077da50879SJayamohan Kallickal phwi_ctrlr->wrb_context[i * 2].cid = phwi_context->be_wrbq[i]. 30087da50879SJayamohan Kallickal id; 30096733b39aSJayamohan Kallickal } 30106733b39aSJayamohan Kallickal kfree(pwrb_arr); 30116733b39aSJayamohan Kallickal return 0; 30126733b39aSJayamohan Kallickal } 30136733b39aSJayamohan Kallickal 30146733b39aSJayamohan Kallickal static void free_wrb_handles(struct beiscsi_hba *phba) 30156733b39aSJayamohan Kallickal { 30166733b39aSJayamohan Kallickal unsigned int index; 30176733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 30186733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 30196733b39aSJayamohan Kallickal 30206733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 30216733b39aSJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) { 30226733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 30236733b39aSJayamohan Kallickal kfree(pwrb_context->pwrb_handle_base); 30246733b39aSJayamohan Kallickal kfree(pwrb_context->pwrb_handle_basestd); 30256733b39aSJayamohan Kallickal } 30266733b39aSJayamohan Kallickal } 30276733b39aSJayamohan Kallickal 3028bfead3b2SJayamohan Kallickal static void be_mcc_queues_destroy(struct beiscsi_hba *phba) 3029bfead3b2SJayamohan Kallickal { 3030bfead3b2SJayamohan Kallickal struct be_queue_info *q; 3031bfead3b2SJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 3032bfead3b2SJayamohan Kallickal 3033bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.q; 3034bfead3b2SJayamohan Kallickal if (q->created) 3035bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_MCCQ); 3036bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 3037bfead3b2SJayamohan Kallickal 3038bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.cq; 3039bfead3b2SJayamohan Kallickal if (q->created) 3040bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ); 3041bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 3042bfead3b2SJayamohan Kallickal } 3043bfead3b2SJayamohan Kallickal 30446733b39aSJayamohan Kallickal static void hwi_cleanup(struct beiscsi_hba *phba) 30456733b39aSJayamohan Kallickal { 30466733b39aSJayamohan Kallickal struct be_queue_info *q; 30476733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 30486733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 30496733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 3050bfead3b2SJayamohan Kallickal int i, eq_num; 30516733b39aSJayamohan Kallickal 30526733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 30536733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 30546733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 30556733b39aSJayamohan Kallickal q = &phwi_context->be_wrbq[i]; 30566733b39aSJayamohan Kallickal if (q->created) 30576733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ); 30586733b39aSJayamohan Kallickal } 30596733b39aSJayamohan Kallickal free_wrb_handles(phba); 30606733b39aSJayamohan Kallickal 30616733b39aSJayamohan Kallickal q = &phwi_context->be_def_hdrq; 30626733b39aSJayamohan Kallickal if (q->created) 30636733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ); 30646733b39aSJayamohan Kallickal 30656733b39aSJayamohan Kallickal q = &phwi_context->be_def_dataq; 30666733b39aSJayamohan Kallickal if (q->created) 30676733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ); 30686733b39aSJayamohan Kallickal 30696733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL); 30706733b39aSJayamohan Kallickal 3071bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus); i++) { 3072bfead3b2SJayamohan Kallickal q = &phwi_context->be_cq[i]; 30736733b39aSJayamohan Kallickal if (q->created) 30746733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ); 3075bfead3b2SJayamohan Kallickal } 3076bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 3077bfead3b2SJayamohan Kallickal eq_num = 1; 3078bfead3b2SJayamohan Kallickal else 3079bfead3b2SJayamohan Kallickal eq_num = 0; 3080bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_num); i++) { 3081bfead3b2SJayamohan Kallickal q = &phwi_context->be_eq[i].q; 30826733b39aSJayamohan Kallickal if (q->created) 30836733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ); 30846733b39aSJayamohan Kallickal } 3085bfead3b2SJayamohan Kallickal be_mcc_queues_destroy(phba); 3086bfead3b2SJayamohan Kallickal } 3087bfead3b2SJayamohan Kallickal 3088bfead3b2SJayamohan Kallickal static int be_mcc_queues_create(struct beiscsi_hba *phba, 3089bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context) 3090bfead3b2SJayamohan Kallickal { 3091bfead3b2SJayamohan Kallickal struct be_queue_info *q, *cq; 3092bfead3b2SJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 3093bfead3b2SJayamohan Kallickal 3094bfead3b2SJayamohan Kallickal /* Alloc MCC compl queue */ 3095bfead3b2SJayamohan Kallickal cq = &phba->ctrl.mcc_obj.cq; 3096bfead3b2SJayamohan Kallickal if (be_queue_alloc(phba, cq, MCC_CQ_LEN, 3097bfead3b2SJayamohan Kallickal sizeof(struct be_mcc_compl))) 3098bfead3b2SJayamohan Kallickal goto err; 3099bfead3b2SJayamohan Kallickal /* Ask BE to create MCC compl queue; */ 3100bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 3101bfead3b2SJayamohan Kallickal if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq 3102bfead3b2SJayamohan Kallickal [phba->num_cpus].q, false, true, 0)) 3103bfead3b2SJayamohan Kallickal goto mcc_cq_free; 3104bfead3b2SJayamohan Kallickal } else { 3105bfead3b2SJayamohan Kallickal if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq[0].q, 3106bfead3b2SJayamohan Kallickal false, true, 0)) 3107bfead3b2SJayamohan Kallickal goto mcc_cq_free; 3108bfead3b2SJayamohan Kallickal } 3109bfead3b2SJayamohan Kallickal 3110bfead3b2SJayamohan Kallickal /* Alloc MCC queue */ 3111bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.q; 3112bfead3b2SJayamohan Kallickal if (be_queue_alloc(phba, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb))) 3113bfead3b2SJayamohan Kallickal goto mcc_cq_destroy; 3114bfead3b2SJayamohan Kallickal 3115bfead3b2SJayamohan Kallickal /* Ask BE to create MCC queue */ 311635e66019SJayamohan Kallickal if (beiscsi_cmd_mccq_create(phba, q, cq)) 3117bfead3b2SJayamohan Kallickal goto mcc_q_free; 3118bfead3b2SJayamohan Kallickal 3119bfead3b2SJayamohan Kallickal return 0; 3120bfead3b2SJayamohan Kallickal 3121bfead3b2SJayamohan Kallickal mcc_q_free: 3122bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 3123bfead3b2SJayamohan Kallickal mcc_cq_destroy: 3124bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, cq, QTYPE_CQ); 3125bfead3b2SJayamohan Kallickal mcc_cq_free: 3126bfead3b2SJayamohan Kallickal be_queue_free(phba, cq); 3127bfead3b2SJayamohan Kallickal err: 3128d3ad2bb3SJayamohan Kallickal return -ENOMEM; 3129bfead3b2SJayamohan Kallickal } 3130bfead3b2SJayamohan Kallickal 3131bfead3b2SJayamohan Kallickal static int find_num_cpus(void) 3132bfead3b2SJayamohan Kallickal { 3133bfead3b2SJayamohan Kallickal int num_cpus = 0; 3134bfead3b2SJayamohan Kallickal 3135bfead3b2SJayamohan Kallickal num_cpus = num_online_cpus(); 3136bfead3b2SJayamohan Kallickal if (num_cpus >= MAX_CPUS) 3137bfead3b2SJayamohan Kallickal num_cpus = MAX_CPUS - 1; 3138bfead3b2SJayamohan Kallickal 3139bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "num_cpus = %d\n", num_cpus); 3140bfead3b2SJayamohan Kallickal return num_cpus; 3141bfead3b2SJayamohan Kallickal } 31426733b39aSJayamohan Kallickal 31436733b39aSJayamohan Kallickal static int hwi_init_port(struct beiscsi_hba *phba) 31446733b39aSJayamohan Kallickal { 31456733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 31466733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 31476733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz; 31486733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 31496733b39aSJayamohan Kallickal int status; 31506733b39aSJayamohan Kallickal 31516733b39aSJayamohan Kallickal def_pdu_ring_sz = 31526733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl * sizeof(struct phys_addr); 31536733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 31546733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 3155bfead3b2SJayamohan Kallickal phwi_context->max_eqd = 0; 3156bfead3b2SJayamohan Kallickal phwi_context->min_eqd = 0; 3157bfead3b2SJayamohan Kallickal phwi_context->cur_eqd = 64; 31586733b39aSJayamohan Kallickal be_cmd_fw_initialize(&phba->ctrl); 3159bfead3b2SJayamohan Kallickal 3160bfead3b2SJayamohan Kallickal status = beiscsi_create_eqs(phba, phwi_context); 31616733b39aSJayamohan Kallickal if (status != 0) { 31626733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "EQ not created\n"); 31636733b39aSJayamohan Kallickal goto error; 31646733b39aSJayamohan Kallickal } 31656733b39aSJayamohan Kallickal 3166bfead3b2SJayamohan Kallickal status = be_mcc_queues_create(phba, phwi_context); 3167bfead3b2SJayamohan Kallickal if (status != 0) 3168bfead3b2SJayamohan Kallickal goto error; 3169bfead3b2SJayamohan Kallickal 3170bfead3b2SJayamohan Kallickal status = mgmt_check_supported_fw(ctrl, phba); 31716733b39aSJayamohan Kallickal if (status != 0) { 31726733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 31736733b39aSJayamohan Kallickal "Unsupported fw version\n"); 31746733b39aSJayamohan Kallickal goto error; 31756733b39aSJayamohan Kallickal } 31766733b39aSJayamohan Kallickal 3177bfead3b2SJayamohan Kallickal status = beiscsi_create_cqs(phba, phwi_context); 31786733b39aSJayamohan Kallickal if (status != 0) { 31796733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "CQ not created\n"); 31806733b39aSJayamohan Kallickal goto error; 31816733b39aSJayamohan Kallickal } 31826733b39aSJayamohan Kallickal 31836733b39aSJayamohan Kallickal status = beiscsi_create_def_hdr(phba, phwi_context, phwi_ctrlr, 31846733b39aSJayamohan Kallickal def_pdu_ring_sz); 31856733b39aSJayamohan Kallickal if (status != 0) { 31866733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 31876733b39aSJayamohan Kallickal "Default Header not created\n"); 31886733b39aSJayamohan Kallickal goto error; 31896733b39aSJayamohan Kallickal } 31906733b39aSJayamohan Kallickal 31916733b39aSJayamohan Kallickal status = beiscsi_create_def_data(phba, phwi_context, 31926733b39aSJayamohan Kallickal phwi_ctrlr, def_pdu_ring_sz); 31936733b39aSJayamohan Kallickal if (status != 0) { 31946733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 31956733b39aSJayamohan Kallickal "Default Data not created\n"); 31966733b39aSJayamohan Kallickal goto error; 31976733b39aSJayamohan Kallickal } 31986733b39aSJayamohan Kallickal 31996733b39aSJayamohan Kallickal status = beiscsi_post_pages(phba); 32006733b39aSJayamohan Kallickal if (status != 0) { 32016733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "Post SGL Pages Failed\n"); 32026733b39aSJayamohan Kallickal goto error; 32036733b39aSJayamohan Kallickal } 32046733b39aSJayamohan Kallickal 32056733b39aSJayamohan Kallickal status = beiscsi_create_wrb_rings(phba, phwi_context, phwi_ctrlr); 32066733b39aSJayamohan Kallickal if (status != 0) { 32076733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 32086733b39aSJayamohan Kallickal "WRB Rings not created\n"); 32096733b39aSJayamohan Kallickal goto error; 32106733b39aSJayamohan Kallickal } 32116733b39aSJayamohan Kallickal 32126733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "hwi_init_port success\n"); 32136733b39aSJayamohan Kallickal return 0; 32146733b39aSJayamohan Kallickal 32156733b39aSJayamohan Kallickal error: 32166733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "hwi_init_port failed"); 32176733b39aSJayamohan Kallickal hwi_cleanup(phba); 32186733b39aSJayamohan Kallickal return -ENOMEM; 32196733b39aSJayamohan Kallickal } 32206733b39aSJayamohan Kallickal 32216733b39aSJayamohan Kallickal static int hwi_init_controller(struct beiscsi_hba *phba) 32226733b39aSJayamohan Kallickal { 32236733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 32246733b39aSJayamohan Kallickal 32256733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 32266733b39aSJayamohan Kallickal if (1 == phba->init_mem[HWI_MEM_ADDN_CONTEXT].num_elements) { 32276733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt = (struct hwi_context_memory *)phba-> 32286733b39aSJayamohan Kallickal init_mem[HWI_MEM_ADDN_CONTEXT].mem_array[0].virtual_address; 32296733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, " phwi_ctrlr->phwi_ctxt=%p\n", 32306733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt); 32316733b39aSJayamohan Kallickal } else { 32326733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 32336733b39aSJayamohan Kallickal "HWI_MEM_ADDN_CONTEXT is more than one element." 32346733b39aSJayamohan Kallickal "Failing to load\n"); 32356733b39aSJayamohan Kallickal return -ENOMEM; 32366733b39aSJayamohan Kallickal } 32376733b39aSJayamohan Kallickal 32386733b39aSJayamohan Kallickal iscsi_init_global_templates(phba); 32396733b39aSJayamohan Kallickal beiscsi_init_wrb_handle(phba); 32406733b39aSJayamohan Kallickal hwi_init_async_pdu_ctx(phba); 32416733b39aSJayamohan Kallickal if (hwi_init_port(phba) != 0) { 32426733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 32436733b39aSJayamohan Kallickal "hwi_init_controller failed\n"); 32446733b39aSJayamohan Kallickal return -ENOMEM; 32456733b39aSJayamohan Kallickal } 32466733b39aSJayamohan Kallickal return 0; 32476733b39aSJayamohan Kallickal } 32486733b39aSJayamohan Kallickal 32496733b39aSJayamohan Kallickal static void beiscsi_free_mem(struct beiscsi_hba *phba) 32506733b39aSJayamohan Kallickal { 32516733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 32526733b39aSJayamohan Kallickal int i, j; 32536733b39aSJayamohan Kallickal 32546733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 32556733b39aSJayamohan Kallickal i = 0; 32566733b39aSJayamohan Kallickal j = 0; 32576733b39aSJayamohan Kallickal for (i = 0; i < SE_MEM_MAX; i++) { 32586733b39aSJayamohan Kallickal for (j = mem_descr->num_elements; j > 0; j--) { 32596733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 32606733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].size, 32616733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].virtual_address, 3262457ff3b7SJayamohan Kallickal (unsigned long)mem_descr->mem_array[j - 1]. 3263457ff3b7SJayamohan Kallickal bus_address.u.a64.address); 32646733b39aSJayamohan Kallickal } 32656733b39aSJayamohan Kallickal kfree(mem_descr->mem_array); 32666733b39aSJayamohan Kallickal mem_descr++; 32676733b39aSJayamohan Kallickal } 32686733b39aSJayamohan Kallickal kfree(phba->init_mem); 32696733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 32706733b39aSJayamohan Kallickal } 32716733b39aSJayamohan Kallickal 32726733b39aSJayamohan Kallickal static int beiscsi_init_controller(struct beiscsi_hba *phba) 32736733b39aSJayamohan Kallickal { 32746733b39aSJayamohan Kallickal int ret = -ENOMEM; 32756733b39aSJayamohan Kallickal 32766733b39aSJayamohan Kallickal ret = beiscsi_get_memory(phba); 32776733b39aSJayamohan Kallickal if (ret < 0) { 32786733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe -" 32796733b39aSJayamohan Kallickal "Failed in beiscsi_alloc_memory\n"); 32806733b39aSJayamohan Kallickal return ret; 32816733b39aSJayamohan Kallickal } 32826733b39aSJayamohan Kallickal 32836733b39aSJayamohan Kallickal ret = hwi_init_controller(phba); 32846733b39aSJayamohan Kallickal if (ret) 32856733b39aSJayamohan Kallickal goto free_init; 32866733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Return success from beiscsi_init_controller"); 32876733b39aSJayamohan Kallickal return 0; 32886733b39aSJayamohan Kallickal 32896733b39aSJayamohan Kallickal free_init: 32906733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 32916733b39aSJayamohan Kallickal return -ENOMEM; 32926733b39aSJayamohan Kallickal } 32936733b39aSJayamohan Kallickal 32946733b39aSJayamohan Kallickal static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba) 32956733b39aSJayamohan Kallickal { 32966733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg; 32976733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 32986733b39aSJayamohan Kallickal struct iscsi_sge *pfrag; 32996733b39aSJayamohan Kallickal unsigned int arr_index, i, idx; 33006733b39aSJayamohan Kallickal 33016733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl = 0; 33026733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl = 0; 3303bfead3b2SJayamohan Kallickal 33046733b39aSJayamohan Kallickal mem_descr_sglh = phba->init_mem; 33056733b39aSJayamohan Kallickal mem_descr_sglh += HWI_MEM_SGLH; 33066733b39aSJayamohan Kallickal if (1 == mem_descr_sglh->num_elements) { 33076733b39aSJayamohan Kallickal phba->io_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) * 33086733b39aSJayamohan Kallickal phba->params.ios_per_ctrl, 33096733b39aSJayamohan Kallickal GFP_KERNEL); 33106733b39aSJayamohan Kallickal if (!phba->io_sgl_hndl_base) { 33116733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 33126733b39aSJayamohan Kallickal "Mem Alloc Failed. Failing to load\n"); 33136733b39aSJayamohan Kallickal return -ENOMEM; 33146733b39aSJayamohan Kallickal } 33156733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) * 33166733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - 33176733b39aSJayamohan Kallickal phba->params.ios_per_ctrl), 33186733b39aSJayamohan Kallickal GFP_KERNEL); 33196733b39aSJayamohan Kallickal if (!phba->eh_sgl_hndl_base) { 33206733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 33216733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 33226733b39aSJayamohan Kallickal "Mem Alloc Failed. Failing to load\n"); 33236733b39aSJayamohan Kallickal return -ENOMEM; 33246733b39aSJayamohan Kallickal } 33256733b39aSJayamohan Kallickal } else { 33266733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 33276733b39aSJayamohan Kallickal "HWI_MEM_SGLH is more than one element." 33286733b39aSJayamohan Kallickal "Failing to load\n"); 33296733b39aSJayamohan Kallickal return -ENOMEM; 33306733b39aSJayamohan Kallickal } 33316733b39aSJayamohan Kallickal 33326733b39aSJayamohan Kallickal arr_index = 0; 33336733b39aSJayamohan Kallickal idx = 0; 33346733b39aSJayamohan Kallickal while (idx < mem_descr_sglh->num_elements) { 33356733b39aSJayamohan Kallickal psgl_handle = mem_descr_sglh->mem_array[idx].virtual_address; 33366733b39aSJayamohan Kallickal 33376733b39aSJayamohan Kallickal for (i = 0; i < (mem_descr_sglh->mem_array[idx].size / 33386733b39aSJayamohan Kallickal sizeof(struct sgl_handle)); i++) { 33396733b39aSJayamohan Kallickal if (arr_index < phba->params.ios_per_ctrl) { 33406733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[arr_index] = psgl_handle; 33416733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl++; 33426733b39aSJayamohan Kallickal arr_index++; 33436733b39aSJayamohan Kallickal } else { 33446733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[arr_index - 33456733b39aSJayamohan Kallickal phba->params.ios_per_ctrl] = 33466733b39aSJayamohan Kallickal psgl_handle; 33476733b39aSJayamohan Kallickal arr_index++; 33486733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl++; 33496733b39aSJayamohan Kallickal } 33506733b39aSJayamohan Kallickal psgl_handle++; 33516733b39aSJayamohan Kallickal } 33526733b39aSJayamohan Kallickal idx++; 33536733b39aSJayamohan Kallickal } 33546733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 33556733b39aSJayamohan Kallickal "phba->io_sgl_hndl_avbl=%d" 33566733b39aSJayamohan Kallickal "phba->eh_sgl_hndl_avbl=%d\n", 33576733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl, 33586733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl); 33596733b39aSJayamohan Kallickal mem_descr_sg = phba->init_mem; 33606733b39aSJayamohan Kallickal mem_descr_sg += HWI_MEM_SGE; 33616733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "\n mem_descr_sg->num_elements=%d\n", 33626733b39aSJayamohan Kallickal mem_descr_sg->num_elements); 33636733b39aSJayamohan Kallickal arr_index = 0; 33646733b39aSJayamohan Kallickal idx = 0; 33656733b39aSJayamohan Kallickal while (idx < mem_descr_sg->num_elements) { 33666733b39aSJayamohan Kallickal pfrag = mem_descr_sg->mem_array[idx].virtual_address; 33676733b39aSJayamohan Kallickal 33686733b39aSJayamohan Kallickal for (i = 0; 33696733b39aSJayamohan Kallickal i < (mem_descr_sg->mem_array[idx].size) / 33706733b39aSJayamohan Kallickal (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io); 33716733b39aSJayamohan Kallickal i++) { 33726733b39aSJayamohan Kallickal if (arr_index < phba->params.ios_per_ctrl) 33736733b39aSJayamohan Kallickal psgl_handle = phba->io_sgl_hndl_base[arr_index]; 33746733b39aSJayamohan Kallickal else 33756733b39aSJayamohan Kallickal psgl_handle = phba->eh_sgl_hndl_base[arr_index - 33766733b39aSJayamohan Kallickal phba->params.ios_per_ctrl]; 33776733b39aSJayamohan Kallickal psgl_handle->pfrag = pfrag; 33786733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, pfrag, 0); 33796733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0); 33806733b39aSJayamohan Kallickal pfrag += phba->params.num_sge_per_io; 33816733b39aSJayamohan Kallickal psgl_handle->sgl_index = 33827da50879SJayamohan Kallickal phba->fw_config.iscsi_icd_start + arr_index++; 33836733b39aSJayamohan Kallickal } 33846733b39aSJayamohan Kallickal idx++; 33856733b39aSJayamohan Kallickal } 33866733b39aSJayamohan Kallickal phba->io_sgl_free_index = 0; 33876733b39aSJayamohan Kallickal phba->io_sgl_alloc_index = 0; 33886733b39aSJayamohan Kallickal phba->eh_sgl_free_index = 0; 33896733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index = 0; 33906733b39aSJayamohan Kallickal return 0; 33916733b39aSJayamohan Kallickal } 33926733b39aSJayamohan Kallickal 33936733b39aSJayamohan Kallickal static int hba_setup_cid_tbls(struct beiscsi_hba *phba) 33946733b39aSJayamohan Kallickal { 33956733b39aSJayamohan Kallickal int i, new_cid; 33966733b39aSJayamohan Kallickal 3397c2462288SJayamohan Kallickal phba->cid_array = kzalloc(sizeof(void *) * phba->params.cxns_per_ctrl, 33986733b39aSJayamohan Kallickal GFP_KERNEL); 33996733b39aSJayamohan Kallickal if (!phba->cid_array) { 34006733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 34016733b39aSJayamohan Kallickal "Failed to allocate memory in " 34026733b39aSJayamohan Kallickal "hba_setup_cid_tbls\n"); 34036733b39aSJayamohan Kallickal return -ENOMEM; 34046733b39aSJayamohan Kallickal } 3405c2462288SJayamohan Kallickal phba->ep_array = kzalloc(sizeof(struct iscsi_endpoint *) * 34066733b39aSJayamohan Kallickal phba->params.cxns_per_ctrl * 2, GFP_KERNEL); 34076733b39aSJayamohan Kallickal if (!phba->ep_array) { 34086733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 34096733b39aSJayamohan Kallickal "Failed to allocate memory in " 34106733b39aSJayamohan Kallickal "hba_setup_cid_tbls\n"); 34116733b39aSJayamohan Kallickal kfree(phba->cid_array); 34126733b39aSJayamohan Kallickal return -ENOMEM; 34136733b39aSJayamohan Kallickal } 34147da50879SJayamohan Kallickal new_cid = phba->fw_config.iscsi_cid_start; 34156733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 34166733b39aSJayamohan Kallickal phba->cid_array[i] = new_cid; 34176733b39aSJayamohan Kallickal new_cid += 2; 34186733b39aSJayamohan Kallickal } 34196733b39aSJayamohan Kallickal phba->avlbl_cids = phba->params.cxns_per_ctrl; 34206733b39aSJayamohan Kallickal return 0; 34216733b39aSJayamohan Kallickal } 34226733b39aSJayamohan Kallickal 3423238f6b72SJayamohan Kallickal static void hwi_enable_intr(struct beiscsi_hba *phba) 34246733b39aSJayamohan Kallickal { 34256733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 34266733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 34276733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 34286733b39aSJayamohan Kallickal struct be_queue_info *eq; 34296733b39aSJayamohan Kallickal u8 __iomem *addr; 3430bfead3b2SJayamohan Kallickal u32 reg, i; 34316733b39aSJayamohan Kallickal u32 enabled; 34326733b39aSJayamohan Kallickal 34336733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 34346733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 34356733b39aSJayamohan Kallickal 34366733b39aSJayamohan Kallickal addr = (u8 __iomem *) ((u8 __iomem *) ctrl->pcicfg + 34376733b39aSJayamohan Kallickal PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET); 34386733b39aSJayamohan Kallickal reg = ioread32(addr); 34396733b39aSJayamohan Kallickal 34406733b39aSJayamohan Kallickal enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 34416733b39aSJayamohan Kallickal if (!enabled) { 34426733b39aSJayamohan Kallickal reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 34436733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "reg =x%08x addr=%p\n", reg, addr); 34446733b39aSJayamohan Kallickal iowrite32(reg, addr); 3445665d6d94SJayamohan Kallickal } 3446665d6d94SJayamohan Kallickal 3447c03af1aeSJayamohan Kallickal if (!phba->msix_enabled) { 3448c03af1aeSJayamohan Kallickal eq = &phwi_context->be_eq[0].q; 3449c03af1aeSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "eq->id=%d\n", eq->id); 3450c03af1aeSJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1); 3451c03af1aeSJayamohan Kallickal } else { 3452bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) { 3453bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 34546733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "eq->id=%d\n", eq->id); 34556733b39aSJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1); 3456bfead3b2SJayamohan Kallickal } 3457c03af1aeSJayamohan Kallickal } 3458c03af1aeSJayamohan Kallickal } 34596733b39aSJayamohan Kallickal 34606733b39aSJayamohan Kallickal static void hwi_disable_intr(struct beiscsi_hba *phba) 34616733b39aSJayamohan Kallickal { 34626733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 34636733b39aSJayamohan Kallickal 34646733b39aSJayamohan Kallickal u8 __iomem *addr = ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET; 34656733b39aSJayamohan Kallickal u32 reg = ioread32(addr); 34666733b39aSJayamohan Kallickal 34676733b39aSJayamohan Kallickal u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 34686733b39aSJayamohan Kallickal if (enabled) { 34696733b39aSJayamohan Kallickal reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 34706733b39aSJayamohan Kallickal iowrite32(reg, addr); 34716733b39aSJayamohan Kallickal } else 34726733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 34736733b39aSJayamohan Kallickal "In hwi_disable_intr, Already Disabled\n"); 34746733b39aSJayamohan Kallickal } 34756733b39aSJayamohan Kallickal 3476c7acc5b8SJayamohan Kallickal static int beiscsi_get_boot_info(struct beiscsi_hba *phba) 3477c7acc5b8SJayamohan Kallickal { 3478c7acc5b8SJayamohan Kallickal struct be_cmd_resp_get_boot_target *boot_resp; 3479c7acc5b8SJayamohan Kallickal struct be_cmd_resp_get_session *session_resp; 3480c7acc5b8SJayamohan Kallickal struct be_mcc_wrb *wrb; 3481c7acc5b8SJayamohan Kallickal struct be_dma_mem nonemb_cmd; 3482c7acc5b8SJayamohan Kallickal unsigned int tag, wrb_num; 3483c7acc5b8SJayamohan Kallickal unsigned short status, extd_status; 3484c7acc5b8SJayamohan Kallickal struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q; 3485f457a46fSMike Christie int ret = -ENOMEM; 3486c7acc5b8SJayamohan Kallickal 3487c7acc5b8SJayamohan Kallickal tag = beiscsi_get_boot_target(phba); 3488c7acc5b8SJayamohan Kallickal if (!tag) { 3489c7acc5b8SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "be_cmd_get_mac_addr Failed\n"); 3490c7acc5b8SJayamohan Kallickal return -EAGAIN; 3491c7acc5b8SJayamohan Kallickal } else 3492c7acc5b8SJayamohan Kallickal wait_event_interruptible(phba->ctrl.mcc_wait[tag], 3493c7acc5b8SJayamohan Kallickal phba->ctrl.mcc_numtag[tag]); 3494c7acc5b8SJayamohan Kallickal 3495c7acc5b8SJayamohan Kallickal wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16; 3496c7acc5b8SJayamohan Kallickal extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8; 3497c7acc5b8SJayamohan Kallickal status = phba->ctrl.mcc_numtag[tag] & 0x000000FF; 3498c7acc5b8SJayamohan Kallickal if (status || extd_status) { 3499c7acc5b8SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "be_cmd_get_mac_addr Failed" 3500c7acc5b8SJayamohan Kallickal " status = %d extd_status = %d\n", 3501c7acc5b8SJayamohan Kallickal status, extd_status); 3502c7acc5b8SJayamohan Kallickal free_mcc_tag(&phba->ctrl, tag); 3503c7acc5b8SJayamohan Kallickal return -EBUSY; 3504c7acc5b8SJayamohan Kallickal } 3505c7acc5b8SJayamohan Kallickal wrb = queue_get_wrb(mccq, wrb_num); 3506c7acc5b8SJayamohan Kallickal free_mcc_tag(&phba->ctrl, tag); 3507c7acc5b8SJayamohan Kallickal boot_resp = embedded_payload(wrb); 3508c7acc5b8SJayamohan Kallickal 3509c7acc5b8SJayamohan Kallickal if (boot_resp->boot_session_handle < 0) { 3510f457a46fSMike Christie shost_printk(KERN_INFO, phba->shost, "No Boot Session.\n"); 3511c7acc5b8SJayamohan Kallickal return -ENXIO; 3512c7acc5b8SJayamohan Kallickal } 3513c7acc5b8SJayamohan Kallickal 3514c7acc5b8SJayamohan Kallickal nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev, 3515c7acc5b8SJayamohan Kallickal sizeof(*session_resp), 3516c7acc5b8SJayamohan Kallickal &nonemb_cmd.dma); 3517c7acc5b8SJayamohan Kallickal if (nonemb_cmd.va == NULL) { 3518c7acc5b8SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 3519c7acc5b8SJayamohan Kallickal "Failed to allocate memory for" 3520c7acc5b8SJayamohan Kallickal "beiscsi_get_session_info\n"); 3521c7acc5b8SJayamohan Kallickal return -ENOMEM; 3522c7acc5b8SJayamohan Kallickal } 3523c7acc5b8SJayamohan Kallickal 3524c7acc5b8SJayamohan Kallickal memset(nonemb_cmd.va, 0, sizeof(*session_resp)); 3525c7acc5b8SJayamohan Kallickal tag = beiscsi_get_session_info(phba, 3526c7acc5b8SJayamohan Kallickal boot_resp->boot_session_handle, &nonemb_cmd); 3527c7acc5b8SJayamohan Kallickal if (!tag) { 3528c7acc5b8SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "beiscsi_get_session_info" 3529c7acc5b8SJayamohan Kallickal " Failed\n"); 3530c7acc5b8SJayamohan Kallickal goto boot_freemem; 3531c7acc5b8SJayamohan Kallickal } else 3532c7acc5b8SJayamohan Kallickal wait_event_interruptible(phba->ctrl.mcc_wait[tag], 3533c7acc5b8SJayamohan Kallickal phba->ctrl.mcc_numtag[tag]); 3534c7acc5b8SJayamohan Kallickal 3535c7acc5b8SJayamohan Kallickal wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16; 3536c7acc5b8SJayamohan Kallickal extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8; 3537c7acc5b8SJayamohan Kallickal status = phba->ctrl.mcc_numtag[tag] & 0x000000FF; 3538c7acc5b8SJayamohan Kallickal if (status || extd_status) { 3539c7acc5b8SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "beiscsi_get_session_info Failed" 3540c7acc5b8SJayamohan Kallickal " status = %d extd_status = %d\n", 3541c7acc5b8SJayamohan Kallickal status, extd_status); 3542c7acc5b8SJayamohan Kallickal free_mcc_tag(&phba->ctrl, tag); 3543c7acc5b8SJayamohan Kallickal goto boot_freemem; 3544c7acc5b8SJayamohan Kallickal } 3545c7acc5b8SJayamohan Kallickal wrb = queue_get_wrb(mccq, wrb_num); 3546c7acc5b8SJayamohan Kallickal free_mcc_tag(&phba->ctrl, tag); 3547c7acc5b8SJayamohan Kallickal session_resp = nonemb_cmd.va ; 3548f457a46fSMike Christie 3549c7acc5b8SJayamohan Kallickal memcpy(&phba->boot_sess, &session_resp->session_info, 3550c7acc5b8SJayamohan Kallickal sizeof(struct mgmt_session_info)); 3551f457a46fSMike Christie ret = 0; 3552f457a46fSMike Christie 3553c7acc5b8SJayamohan Kallickal boot_freemem: 3554c7acc5b8SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 3555c7acc5b8SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 3556f457a46fSMike Christie return ret; 3557f457a46fSMike Christie } 3558f457a46fSMike Christie 3559f457a46fSMike Christie static void beiscsi_boot_release(void *data) 3560f457a46fSMike Christie { 3561f457a46fSMike Christie struct beiscsi_hba *phba = data; 3562f457a46fSMike Christie 3563f457a46fSMike Christie scsi_host_put(phba->shost); 3564f457a46fSMike Christie } 3565f457a46fSMike Christie 3566f457a46fSMike Christie static int beiscsi_setup_boot_info(struct beiscsi_hba *phba) 3567f457a46fSMike Christie { 3568f457a46fSMike Christie struct iscsi_boot_kobj *boot_kobj; 3569f457a46fSMike Christie 3570f457a46fSMike Christie /* get boot info using mgmt cmd */ 3571f457a46fSMike Christie if (beiscsi_get_boot_info(phba)) 3572f457a46fSMike Christie /* Try to see if we can carry on without this */ 3573f457a46fSMike Christie return 0; 3574f457a46fSMike Christie 3575f457a46fSMike Christie phba->boot_kset = iscsi_boot_create_host_kset(phba->shost->host_no); 3576f457a46fSMike Christie if (!phba->boot_kset) 3577f457a46fSMike Christie return -ENOMEM; 3578f457a46fSMike Christie 3579f457a46fSMike Christie /* get a ref because the show function will ref the phba */ 3580f457a46fSMike Christie if (!scsi_host_get(phba->shost)) 3581f457a46fSMike Christie goto free_kset; 3582f457a46fSMike Christie boot_kobj = iscsi_boot_create_target(phba->boot_kset, 0, phba, 3583f457a46fSMike Christie beiscsi_show_boot_tgt_info, 3584f457a46fSMike Christie beiscsi_tgt_get_attr_visibility, 3585f457a46fSMike Christie beiscsi_boot_release); 3586f457a46fSMike Christie if (!boot_kobj) 3587f457a46fSMike Christie goto put_shost; 3588f457a46fSMike Christie 3589f457a46fSMike Christie if (!scsi_host_get(phba->shost)) 3590f457a46fSMike Christie goto free_kset; 3591f457a46fSMike Christie boot_kobj = iscsi_boot_create_initiator(phba->boot_kset, 0, phba, 3592f457a46fSMike Christie beiscsi_show_boot_ini_info, 3593f457a46fSMike Christie beiscsi_ini_get_attr_visibility, 3594f457a46fSMike Christie beiscsi_boot_release); 3595f457a46fSMike Christie if (!boot_kobj) 3596f457a46fSMike Christie goto put_shost; 3597f457a46fSMike Christie 3598f457a46fSMike Christie if (!scsi_host_get(phba->shost)) 3599f457a46fSMike Christie goto free_kset; 3600f457a46fSMike Christie boot_kobj = iscsi_boot_create_ethernet(phba->boot_kset, 0, phba, 3601f457a46fSMike Christie beiscsi_show_boot_eth_info, 3602f457a46fSMike Christie beiscsi_eth_get_attr_visibility, 3603f457a46fSMike Christie beiscsi_boot_release); 3604f457a46fSMike Christie if (!boot_kobj) 3605f457a46fSMike Christie goto put_shost; 3606f457a46fSMike Christie return 0; 3607f457a46fSMike Christie 3608f457a46fSMike Christie put_shost: 3609f457a46fSMike Christie scsi_host_put(phba->shost); 3610f457a46fSMike Christie free_kset: 3611f457a46fSMike Christie iscsi_boot_destroy_kset(phba->boot_kset); 3612c7acc5b8SJayamohan Kallickal return -ENOMEM; 3613c7acc5b8SJayamohan Kallickal } 3614c7acc5b8SJayamohan Kallickal 36156733b39aSJayamohan Kallickal static int beiscsi_init_port(struct beiscsi_hba *phba) 36166733b39aSJayamohan Kallickal { 36176733b39aSJayamohan Kallickal int ret; 36186733b39aSJayamohan Kallickal 36196733b39aSJayamohan Kallickal ret = beiscsi_init_controller(phba); 36206733b39aSJayamohan Kallickal if (ret < 0) { 36216733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 36226733b39aSJayamohan Kallickal "beiscsi_dev_probe - Failed in" 36236733b39aSJayamohan Kallickal "beiscsi_init_controller\n"); 36246733b39aSJayamohan Kallickal return ret; 36256733b39aSJayamohan Kallickal } 36266733b39aSJayamohan Kallickal ret = beiscsi_init_sgl_handle(phba); 36276733b39aSJayamohan Kallickal if (ret < 0) { 36286733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 36296733b39aSJayamohan Kallickal "beiscsi_dev_probe - Failed in" 36306733b39aSJayamohan Kallickal "beiscsi_init_sgl_handle\n"); 36316733b39aSJayamohan Kallickal goto do_cleanup_ctrlr; 36326733b39aSJayamohan Kallickal } 36336733b39aSJayamohan Kallickal 36346733b39aSJayamohan Kallickal if (hba_setup_cid_tbls(phba)) { 36356733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 36366733b39aSJayamohan Kallickal "Failed in hba_setup_cid_tbls\n"); 36376733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 36386733b39aSJayamohan Kallickal kfree(phba->eh_sgl_hndl_base); 36396733b39aSJayamohan Kallickal goto do_cleanup_ctrlr; 36406733b39aSJayamohan Kallickal } 36416733b39aSJayamohan Kallickal 36426733b39aSJayamohan Kallickal return ret; 36436733b39aSJayamohan Kallickal 36446733b39aSJayamohan Kallickal do_cleanup_ctrlr: 36456733b39aSJayamohan Kallickal hwi_cleanup(phba); 36466733b39aSJayamohan Kallickal return ret; 36476733b39aSJayamohan Kallickal } 36486733b39aSJayamohan Kallickal 36496733b39aSJayamohan Kallickal static void hwi_purge_eq(struct beiscsi_hba *phba) 36506733b39aSJayamohan Kallickal { 36516733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 36526733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 36536733b39aSJayamohan Kallickal struct be_queue_info *eq; 36546733b39aSJayamohan Kallickal struct be_eq_entry *eqe = NULL; 3655bfead3b2SJayamohan Kallickal int i, eq_msix; 3656756d29c8SJayamohan Kallickal unsigned int num_processed; 36576733b39aSJayamohan Kallickal 36586733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 36596733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 3660bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 3661bfead3b2SJayamohan Kallickal eq_msix = 1; 3662bfead3b2SJayamohan Kallickal else 3663bfead3b2SJayamohan Kallickal eq_msix = 0; 3664bfead3b2SJayamohan Kallickal 3665bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_msix); i++) { 3666bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 36676733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 3668756d29c8SJayamohan Kallickal num_processed = 0; 36696733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 36706733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 36716733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 36726733b39aSJayamohan Kallickal queue_tail_inc(eq); 36736733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 3674756d29c8SJayamohan Kallickal num_processed++; 36756733b39aSJayamohan Kallickal } 3676756d29c8SJayamohan Kallickal 3677756d29c8SJayamohan Kallickal if (num_processed) 3678756d29c8SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_processed, 1, 1); 36796733b39aSJayamohan Kallickal } 3680bfead3b2SJayamohan Kallickal } 36816733b39aSJayamohan Kallickal 36826733b39aSJayamohan Kallickal static void beiscsi_clean_port(struct beiscsi_hba *phba) 36836733b39aSJayamohan Kallickal { 368403a12310SJayamohan Kallickal int mgmt_status; 36856733b39aSJayamohan Kallickal 36866733b39aSJayamohan Kallickal mgmt_status = mgmt_epfw_cleanup(phba, CMD_CONNECTION_CHUTE_0); 36876733b39aSJayamohan Kallickal if (mgmt_status) 36886733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 36896733b39aSJayamohan Kallickal "mgmt_epfw_cleanup FAILED\n"); 3690756d29c8SJayamohan Kallickal 36916733b39aSJayamohan Kallickal hwi_purge_eq(phba); 3692756d29c8SJayamohan Kallickal hwi_cleanup(phba); 36936733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 36946733b39aSJayamohan Kallickal kfree(phba->eh_sgl_hndl_base); 36956733b39aSJayamohan Kallickal kfree(phba->cid_array); 36966733b39aSJayamohan Kallickal kfree(phba->ep_array); 36976733b39aSJayamohan Kallickal } 36986733b39aSJayamohan Kallickal 36996733b39aSJayamohan Kallickal void 37006733b39aSJayamohan Kallickal beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn, 37016733b39aSJayamohan Kallickal struct beiscsi_offload_params *params) 37026733b39aSJayamohan Kallickal { 37036733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 37046733b39aSJayamohan Kallickal struct iscsi_target_context_update_wrb *pwrb = NULL; 37056733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 37066733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 37076733b39aSJayamohan Kallickal u32 doorbell = 0; 37086733b39aSJayamohan Kallickal 37096733b39aSJayamohan Kallickal /* 37106733b39aSJayamohan Kallickal * We can always use 0 here because it is reserved by libiscsi for 37116733b39aSJayamohan Kallickal * login/startup related tasks. 37126733b39aSJayamohan Kallickal */ 37137da50879SJayamohan Kallickal pwrb_handle = alloc_wrb_handle(phba, (beiscsi_conn->beiscsi_conn_cid - 3714d5431488SJayamohan Kallickal phba->fw_config.iscsi_cid_start)); 37156733b39aSJayamohan Kallickal pwrb = (struct iscsi_target_context_update_wrb *)pwrb_handle->pwrb; 37166733b39aSJayamohan Kallickal memset(pwrb, 0, sizeof(*pwrb)); 37176733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 37186733b39aSJayamohan Kallickal max_burst_length, pwrb, params->dw[offsetof 37196733b39aSJayamohan Kallickal (struct amap_beiscsi_offload_params, 37206733b39aSJayamohan Kallickal max_burst_length) / 32]); 37216733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 37226733b39aSJayamohan Kallickal max_send_data_segment_length, pwrb, 37236733b39aSJayamohan Kallickal params->dw[offsetof(struct amap_beiscsi_offload_params, 37246733b39aSJayamohan Kallickal max_send_data_segment_length) / 32]); 37256733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 37266733b39aSJayamohan Kallickal first_burst_length, 37276733b39aSJayamohan Kallickal pwrb, 37286733b39aSJayamohan Kallickal params->dw[offsetof(struct amap_beiscsi_offload_params, 37296733b39aSJayamohan Kallickal first_burst_length) / 32]); 37306733b39aSJayamohan Kallickal 37316733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, erl, pwrb, 37326733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 37336733b39aSJayamohan Kallickal erl) / 32] & OFFLD_PARAMS_ERL)); 37346733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, dde, pwrb, 37356733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 37366733b39aSJayamohan Kallickal dde) / 32] & OFFLD_PARAMS_DDE) >> 2); 37376733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, hde, pwrb, 37386733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 37396733b39aSJayamohan Kallickal hde) / 32] & OFFLD_PARAMS_HDE) >> 3); 37406733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ir2t, pwrb, 37416733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 37426733b39aSJayamohan Kallickal ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4); 37436733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, imd, pwrb, 37446733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 37456733b39aSJayamohan Kallickal imd) / 32] & OFFLD_PARAMS_IMD) >> 5); 37466733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, stat_sn, 37476733b39aSJayamohan Kallickal pwrb, 37486733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 37496733b39aSJayamohan Kallickal exp_statsn) / 32] + 1)); 37506733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, type, pwrb, 37516733b39aSJayamohan Kallickal 0x7); 37526733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, wrb_idx, 37536733b39aSJayamohan Kallickal pwrb, pwrb_handle->wrb_index); 37546733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ptr2nextwrb, 37556733b39aSJayamohan Kallickal pwrb, pwrb_handle->nxt_wrb_index); 37566733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 37576733b39aSJayamohan Kallickal session_state, pwrb, 0); 37586733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, compltonack, 37596733b39aSJayamohan Kallickal pwrb, 1); 37606733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, notpredblq, 37616733b39aSJayamohan Kallickal pwrb, 0); 37626733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, mode, pwrb, 37636733b39aSJayamohan Kallickal 0); 37646733b39aSJayamohan Kallickal 37656733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 37666733b39aSJayamohan Kallickal mem_descr += ISCSI_MEM_GLOBAL_HEADER; 37676733b39aSJayamohan Kallickal 37686733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 37696733b39aSJayamohan Kallickal pad_buffer_addr_hi, pwrb, 37706733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a32.address_hi); 37716733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 37726733b39aSJayamohan Kallickal pad_buffer_addr_lo, pwrb, 37736733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a32.address_lo); 37746733b39aSJayamohan Kallickal 37756733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_target_context_update_wrb)); 37766733b39aSJayamohan Kallickal 37776733b39aSJayamohan Kallickal doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 3778bfead3b2SJayamohan Kallickal doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK) 3779bfead3b2SJayamohan Kallickal << DB_DEF_PDU_WRB_INDEX_SHIFT; 37806733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 37816733b39aSJayamohan Kallickal 37826733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); 37836733b39aSJayamohan Kallickal } 37846733b39aSJayamohan Kallickal 37856733b39aSJayamohan Kallickal static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt, 37866733b39aSJayamohan Kallickal int *index, int *age) 37876733b39aSJayamohan Kallickal { 3788bfead3b2SJayamohan Kallickal *index = (int)itt; 37896733b39aSJayamohan Kallickal if (age) 37906733b39aSJayamohan Kallickal *age = conn->session->age; 37916733b39aSJayamohan Kallickal } 37926733b39aSJayamohan Kallickal 37936733b39aSJayamohan Kallickal /** 37946733b39aSJayamohan Kallickal * beiscsi_alloc_pdu - allocates pdu and related resources 37956733b39aSJayamohan Kallickal * @task: libiscsi task 37966733b39aSJayamohan Kallickal * @opcode: opcode of pdu for task 37976733b39aSJayamohan Kallickal * 37986733b39aSJayamohan Kallickal * This is called with the session lock held. It will allocate 37996733b39aSJayamohan Kallickal * the wrb and sgl if needed for the command. And it will prep 38006733b39aSJayamohan Kallickal * the pdu's itt. beiscsi_parse_pdu will later translate 38016733b39aSJayamohan Kallickal * the pdu itt to the libiscsi task itt. 38026733b39aSJayamohan Kallickal */ 38036733b39aSJayamohan Kallickal static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 38046733b39aSJayamohan Kallickal { 38056733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 38066733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 38076733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 38086733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 38096733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 38106733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 38116733b39aSJayamohan Kallickal itt_t itt; 38122afc95bfSJayamohan Kallickal struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess; 38132afc95bfSJayamohan Kallickal dma_addr_t paddr; 38146733b39aSJayamohan Kallickal 38152afc95bfSJayamohan Kallickal io_task->cmd_bhs = pci_pool_alloc(beiscsi_sess->bhs_pool, 3816bc7accecSMike Christie GFP_ATOMIC, &paddr); 38172afc95bfSJayamohan Kallickal if (!io_task->cmd_bhs) 38182afc95bfSJayamohan Kallickal return -ENOMEM; 38192afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address = paddr; 3820bfead3b2SJayamohan Kallickal io_task->libiscsi_itt = (itt_t)task->itt; 38216733b39aSJayamohan Kallickal io_task->conn = beiscsi_conn; 38226733b39aSJayamohan Kallickal 38236733b39aSJayamohan Kallickal task->hdr = (struct iscsi_hdr *)&io_task->cmd_bhs->iscsi_hdr; 38246733b39aSJayamohan Kallickal task->hdr_max = sizeof(struct be_cmd_bhs); 3825d2cecf0dSJayamohan Kallickal io_task->psgl_handle = NULL; 3826d2cecf0dSJayamohan Kallickal io_task->psgl_handle = NULL; 38276733b39aSJayamohan Kallickal 38286733b39aSJayamohan Kallickal if (task->sc) { 38296733b39aSJayamohan Kallickal spin_lock(&phba->io_sgl_lock); 38306733b39aSJayamohan Kallickal io_task->psgl_handle = alloc_io_sgl_handle(phba); 38316733b39aSJayamohan Kallickal spin_unlock(&phba->io_sgl_lock); 38322afc95bfSJayamohan Kallickal if (!io_task->psgl_handle) 38332afc95bfSJayamohan Kallickal goto free_hndls; 3834d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = alloc_wrb_handle(phba, 3835d2cecf0dSJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid - 3836d2cecf0dSJayamohan Kallickal phba->fw_config.iscsi_cid_start); 3837d2cecf0dSJayamohan Kallickal if (!io_task->pwrb_handle) 3838d2cecf0dSJayamohan Kallickal goto free_io_hndls; 38396733b39aSJayamohan Kallickal } else { 38406733b39aSJayamohan Kallickal io_task->scsi_cmnd = NULL; 3841d7aea67bSJayamohan Kallickal if ((opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) { 38426733b39aSJayamohan Kallickal if (!beiscsi_conn->login_in_progress) { 38436733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 38446733b39aSJayamohan Kallickal io_task->psgl_handle = (struct sgl_handle *) 38456733b39aSJayamohan Kallickal alloc_mgmt_sgl_handle(phba); 38466733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 38472afc95bfSJayamohan Kallickal if (!io_task->psgl_handle) 38482afc95bfSJayamohan Kallickal goto free_hndls; 38492afc95bfSJayamohan Kallickal 38506733b39aSJayamohan Kallickal beiscsi_conn->login_in_progress = 1; 38516733b39aSJayamohan Kallickal beiscsi_conn->plogin_sgl_handle = 38526733b39aSJayamohan Kallickal io_task->psgl_handle; 3853d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = 3854d2cecf0dSJayamohan Kallickal alloc_wrb_handle(phba, 3855d2cecf0dSJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid - 3856d2cecf0dSJayamohan Kallickal phba->fw_config.iscsi_cid_start); 3857d2cecf0dSJayamohan Kallickal if (!io_task->pwrb_handle) 3858d2cecf0dSJayamohan Kallickal goto free_io_hndls; 3859d2cecf0dSJayamohan Kallickal beiscsi_conn->plogin_wrb_handle = 3860d2cecf0dSJayamohan Kallickal io_task->pwrb_handle; 3861d2cecf0dSJayamohan Kallickal 38626733b39aSJayamohan Kallickal } else { 38636733b39aSJayamohan Kallickal io_task->psgl_handle = 38646733b39aSJayamohan Kallickal beiscsi_conn->plogin_sgl_handle; 3865d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = 3866d2cecf0dSJayamohan Kallickal beiscsi_conn->plogin_wrb_handle; 38676733b39aSJayamohan Kallickal } 38686733b39aSJayamohan Kallickal } else { 38696733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 38706733b39aSJayamohan Kallickal io_task->psgl_handle = alloc_mgmt_sgl_handle(phba); 38716733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 38722afc95bfSJayamohan Kallickal if (!io_task->psgl_handle) 38732afc95bfSJayamohan Kallickal goto free_hndls; 3874d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = 3875d2cecf0dSJayamohan Kallickal alloc_wrb_handle(phba, 3876d2cecf0dSJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid - 3877d2cecf0dSJayamohan Kallickal phba->fw_config.iscsi_cid_start); 3878d2cecf0dSJayamohan Kallickal if (!io_task->pwrb_handle) 3879d2cecf0dSJayamohan Kallickal goto free_mgmt_hndls; 3880d2cecf0dSJayamohan Kallickal 38816733b39aSJayamohan Kallickal } 38826733b39aSJayamohan Kallickal } 3883bfead3b2SJayamohan Kallickal itt = (itt_t) cpu_to_be32(((unsigned int)io_task->pwrb_handle-> 3884bfead3b2SJayamohan Kallickal wrb_index << 16) | (unsigned int) 3885bfead3b2SJayamohan Kallickal (io_task->psgl_handle->sgl_index)); 3886bfead3b2SJayamohan Kallickal io_task->pwrb_handle->pio_handle = task; 3887bfead3b2SJayamohan Kallickal 38886733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.itt = itt; 38896733b39aSJayamohan Kallickal return 0; 38902afc95bfSJayamohan Kallickal 3891d2cecf0dSJayamohan Kallickal free_io_hndls: 3892d2cecf0dSJayamohan Kallickal spin_lock(&phba->io_sgl_lock); 3893d2cecf0dSJayamohan Kallickal free_io_sgl_handle(phba, io_task->psgl_handle); 3894d2cecf0dSJayamohan Kallickal spin_unlock(&phba->io_sgl_lock); 3895d2cecf0dSJayamohan Kallickal goto free_hndls; 3896d2cecf0dSJayamohan Kallickal free_mgmt_hndls: 3897d2cecf0dSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 3898d2cecf0dSJayamohan Kallickal free_mgmt_sgl_handle(phba, io_task->psgl_handle); 3899d2cecf0dSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 39002afc95bfSJayamohan Kallickal free_hndls: 39012afc95bfSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 39027da50879SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[ 39037da50879SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid - 39047da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 3905d2cecf0dSJayamohan Kallickal if (io_task->pwrb_handle) 39062afc95bfSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle); 39072afc95bfSJayamohan Kallickal io_task->pwrb_handle = NULL; 39082afc95bfSJayamohan Kallickal pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs, 39092afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address); 39102afc95bfSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "Alloc of SGL_ICD Failed\n"); 39112afc95bfSJayamohan Kallickal return -ENOMEM; 39126733b39aSJayamohan Kallickal } 39136733b39aSJayamohan Kallickal 39146733b39aSJayamohan Kallickal static void beiscsi_cleanup_task(struct iscsi_task *task) 39156733b39aSJayamohan Kallickal { 39166733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 39176733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 39186733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 39196733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 39202afc95bfSJayamohan Kallickal struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess; 39216733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 39226733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 39236733b39aSJayamohan Kallickal 39246733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 39257da50879SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[beiscsi_conn->beiscsi_conn_cid 39267da50879SJayamohan Kallickal - phba->fw_config.iscsi_cid_start]; 39276733b39aSJayamohan Kallickal if (io_task->pwrb_handle) { 39286733b39aSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle); 39296733b39aSJayamohan Kallickal io_task->pwrb_handle = NULL; 39306733b39aSJayamohan Kallickal } 39316733b39aSJayamohan Kallickal 39322afc95bfSJayamohan Kallickal if (io_task->cmd_bhs) { 39332afc95bfSJayamohan Kallickal pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs, 39342afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address); 39352afc95bfSJayamohan Kallickal } 39362afc95bfSJayamohan Kallickal 39376733b39aSJayamohan Kallickal if (task->sc) { 39386733b39aSJayamohan Kallickal if (io_task->psgl_handle) { 39396733b39aSJayamohan Kallickal spin_lock(&phba->io_sgl_lock); 39406733b39aSJayamohan Kallickal free_io_sgl_handle(phba, io_task->psgl_handle); 39416733b39aSJayamohan Kallickal spin_unlock(&phba->io_sgl_lock); 39426733b39aSJayamohan Kallickal io_task->psgl_handle = NULL; 39436733b39aSJayamohan Kallickal } 39446733b39aSJayamohan Kallickal } else { 39451227633aSMike Christie if (task->hdr && 39461227633aSMike Christie ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN)) 39476733b39aSJayamohan Kallickal return; 39486733b39aSJayamohan Kallickal if (io_task->psgl_handle) { 39496733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 39506733b39aSJayamohan Kallickal free_mgmt_sgl_handle(phba, io_task->psgl_handle); 39516733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 39526733b39aSJayamohan Kallickal io_task->psgl_handle = NULL; 39536733b39aSJayamohan Kallickal } 39546733b39aSJayamohan Kallickal } 39556733b39aSJayamohan Kallickal } 39566733b39aSJayamohan Kallickal 39576733b39aSJayamohan Kallickal static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg, 39586733b39aSJayamohan Kallickal unsigned int num_sg, unsigned int xferlen, 39596733b39aSJayamohan Kallickal unsigned int writedir) 39606733b39aSJayamohan Kallickal { 39616733b39aSJayamohan Kallickal 39626733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 39636733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 39646733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 39656733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 39666733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 39676733b39aSJayamohan Kallickal unsigned int doorbell = 0; 39686733b39aSJayamohan Kallickal 39696733b39aSJayamohan Kallickal pwrb = io_task->pwrb_handle->pwrb; 39706733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.exp_statsn = 0; 39716733b39aSJayamohan Kallickal io_task->bhs_len = sizeof(struct be_cmd_bhs); 39726733b39aSJayamohan Kallickal 39736733b39aSJayamohan Kallickal if (writedir) { 39746733b39aSJayamohan Kallickal memset(&io_task->cmd_bhs->iscsi_data_pdu, 0, 48); 39756733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, itt, 39766733b39aSJayamohan Kallickal &io_task->cmd_bhs->iscsi_data_pdu, 39776733b39aSJayamohan Kallickal (unsigned int)io_task->cmd_bhs->iscsi_hdr.itt); 39786733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, opcode, 39796733b39aSJayamohan Kallickal &io_task->cmd_bhs->iscsi_data_pdu, 39806733b39aSJayamohan Kallickal ISCSI_OPCODE_SCSI_DATA_OUT); 39816733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, final_bit, 39826733b39aSJayamohan Kallickal &io_task->cmd_bhs->iscsi_data_pdu, 1); 3983bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3984bfead3b2SJayamohan Kallickal INI_WR_CMD); 39856733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1); 39866733b39aSJayamohan Kallickal } else { 3987bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3988bfead3b2SJayamohan Kallickal INI_RD_CMD); 39896733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 39906733b39aSJayamohan Kallickal } 39916733b39aSJayamohan Kallickal memcpy(&io_task->cmd_bhs->iscsi_data_pdu. 39926733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_data_out, lun) / 32], 3993516f43a2SAndy Grover &io_task->cmd_bhs->iscsi_hdr.lun, sizeof(struct scsi_lun)); 39946733b39aSJayamohan Kallickal 39956733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, lun, pwrb, 3996516f43a2SAndy Grover cpu_to_be16(*(unsigned short *)&io_task->cmd_bhs->iscsi_hdr.lun)); 39976733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, xferlen); 39986733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb, 39996733b39aSJayamohan Kallickal io_task->pwrb_handle->wrb_index); 40006733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 40016733b39aSJayamohan Kallickal be32_to_cpu(task->cmdsn)); 40026733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb, 40036733b39aSJayamohan Kallickal io_task->psgl_handle->sgl_index); 40046733b39aSJayamohan Kallickal 40056733b39aSJayamohan Kallickal hwi_write_sgl(pwrb, sg, num_sg, io_task); 40066733b39aSJayamohan Kallickal 40076733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb, 40086733b39aSJayamohan Kallickal io_task->pwrb_handle->nxt_wrb_index); 40096733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb)); 40106733b39aSJayamohan Kallickal 40116733b39aSJayamohan Kallickal doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 40126733b39aSJayamohan Kallickal doorbell |= (io_task->pwrb_handle->wrb_index & 40136733b39aSJayamohan Kallickal DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; 40146733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 40156733b39aSJayamohan Kallickal 40166733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); 40176733b39aSJayamohan Kallickal return 0; 40186733b39aSJayamohan Kallickal } 40196733b39aSJayamohan Kallickal 40206733b39aSJayamohan Kallickal static int beiscsi_mtask(struct iscsi_task *task) 40216733b39aSJayamohan Kallickal { 4022dafab8e0SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 40236733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 40246733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 40256733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 40266733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 40276733b39aSJayamohan Kallickal unsigned int doorbell = 0; 4028dafab8e0SJayamohan Kallickal unsigned int cid; 40296733b39aSJayamohan Kallickal 4030bfead3b2SJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 40316733b39aSJayamohan Kallickal pwrb = io_task->pwrb_handle->pwrb; 4032caf818f1SJayamohan Kallickal memset(pwrb, 0, sizeof(*pwrb)); 40336733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 40346733b39aSJayamohan Kallickal be32_to_cpu(task->cmdsn)); 40356733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb, 40366733b39aSJayamohan Kallickal io_task->pwrb_handle->wrb_index); 40376733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb, 40386733b39aSJayamohan Kallickal io_task->psgl_handle->sgl_index); 4039dafab8e0SJayamohan Kallickal 40406733b39aSJayamohan Kallickal switch (task->hdr->opcode & ISCSI_OPCODE_MASK) { 40416733b39aSJayamohan Kallickal case ISCSI_OP_LOGIN: 4042bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 4043bfead3b2SJayamohan Kallickal TGT_DM_CMD); 40446733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 40456733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 1); 40466733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 40476733b39aSJayamohan Kallickal break; 40486733b39aSJayamohan Kallickal case ISCSI_OP_NOOP_OUT: 40491390b01bSJayamohan Kallickal if (task->hdr->ttt != ISCSI_RESERVED_TAG) { 40501390b01bSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 40511390b01bSJayamohan Kallickal TGT_DM_CMD); 40521390b01bSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, 40531390b01bSJayamohan Kallickal pwrb, 0); 4054685e16fdSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 1); 40551390b01bSJayamohan Kallickal } else { 4056bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 4057bfead3b2SJayamohan Kallickal INI_RD_CMD); 4058685e16fdSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 40591390b01bSJayamohan Kallickal } 40606733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 40616733b39aSJayamohan Kallickal break; 40626733b39aSJayamohan Kallickal case ISCSI_OP_TEXT: 4063bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 4064b30c6dabSJayamohan Kallickal TGT_DM_CMD); 40650ecb0b45SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 40666733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 40676733b39aSJayamohan Kallickal break; 40686733b39aSJayamohan Kallickal case ISCSI_OP_SCSI_TMFUNC: 4069bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 4070bfead3b2SJayamohan Kallickal INI_TMF_CMD); 40716733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 40726733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 40736733b39aSJayamohan Kallickal break; 40746733b39aSJayamohan Kallickal case ISCSI_OP_LOGOUT: 40756733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 40766733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 40776733b39aSJayamohan Kallickal HWH_TYPE_LOGOUT); 40786733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 40796733b39aSJayamohan Kallickal break; 40806733b39aSJayamohan Kallickal 40816733b39aSJayamohan Kallickal default: 40826733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "opcode =%d Not supported\n", 40836733b39aSJayamohan Kallickal task->hdr->opcode & ISCSI_OPCODE_MASK); 40846733b39aSJayamohan Kallickal return -EINVAL; 40856733b39aSJayamohan Kallickal } 40866733b39aSJayamohan Kallickal 40876733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, 408851a46250SJayamohan Kallickal task->data_count); 40896733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb, 40906733b39aSJayamohan Kallickal io_task->pwrb_handle->nxt_wrb_index); 40916733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb)); 40926733b39aSJayamohan Kallickal 4093bfead3b2SJayamohan Kallickal doorbell |= cid & DB_WRB_POST_CID_MASK; 40946733b39aSJayamohan Kallickal doorbell |= (io_task->pwrb_handle->wrb_index & 40956733b39aSJayamohan Kallickal DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; 40966733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 40976733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); 40986733b39aSJayamohan Kallickal return 0; 40996733b39aSJayamohan Kallickal } 41006733b39aSJayamohan Kallickal 41016733b39aSJayamohan Kallickal static int beiscsi_task_xmit(struct iscsi_task *task) 41026733b39aSJayamohan Kallickal { 41036733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 41046733b39aSJayamohan Kallickal struct scsi_cmnd *sc = task->sc; 41056733b39aSJayamohan Kallickal struct scatterlist *sg; 41066733b39aSJayamohan Kallickal int num_sg; 41076733b39aSJayamohan Kallickal unsigned int writedir = 0, xferlen = 0; 41086733b39aSJayamohan Kallickal 41096733b39aSJayamohan Kallickal if (!sc) 41106733b39aSJayamohan Kallickal return beiscsi_mtask(task); 41116733b39aSJayamohan Kallickal 41126733b39aSJayamohan Kallickal io_task->scsi_cmnd = sc; 41136733b39aSJayamohan Kallickal num_sg = scsi_dma_map(sc); 41146733b39aSJayamohan Kallickal if (num_sg < 0) { 41156733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, " scsi_dma_map Failed\n") 41166733b39aSJayamohan Kallickal return num_sg; 41176733b39aSJayamohan Kallickal } 41186733b39aSJayamohan Kallickal xferlen = scsi_bufflen(sc); 41196733b39aSJayamohan Kallickal sg = scsi_sglist(sc); 41206733b39aSJayamohan Kallickal if (sc->sc_data_direction == DMA_TO_DEVICE) { 41216733b39aSJayamohan Kallickal writedir = 1; 41226733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_4, "task->imm_count=0x%08x\n", 41236733b39aSJayamohan Kallickal task->imm_count); 41246733b39aSJayamohan Kallickal } else 41256733b39aSJayamohan Kallickal writedir = 0; 41266733b39aSJayamohan Kallickal return beiscsi_iotask(task, sg, num_sg, xferlen, writedir); 41276733b39aSJayamohan Kallickal } 41286733b39aSJayamohan Kallickal 412925602c97SJayamohan Kallickal static void beiscsi_quiesce(struct beiscsi_hba *phba) 41306733b39aSJayamohan Kallickal { 4131bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 4132bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 4133bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 4134bfead3b2SJayamohan Kallickal unsigned int i, msix_vec; 4135e9b91193SJayamohan Kallickal u8 *real_offset = 0; 4136e9b91193SJayamohan Kallickal u32 value = 0; 41376733b39aSJayamohan Kallickal 4138bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 4139bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 41406733b39aSJayamohan Kallickal hwi_disable_intr(phba); 4141bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 4142bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) { 4143bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 4144bfead3b2SJayamohan Kallickal free_irq(msix_vec, &phwi_context->be_eq[i]); 41458fcfb210SJayamohan Kallickal kfree(phba->msi_name[i]); 4146bfead3b2SJayamohan Kallickal } 4147bfead3b2SJayamohan Kallickal } else 41486733b39aSJayamohan Kallickal if (phba->pcidev->irq) 41496733b39aSJayamohan Kallickal free_irq(phba->pcidev->irq, phba); 4150bfead3b2SJayamohan Kallickal pci_disable_msix(phba->pcidev); 41516733b39aSJayamohan Kallickal destroy_workqueue(phba->wq); 41526733b39aSJayamohan Kallickal if (blk_iopoll_enabled) 4153bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 4154bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 4155bfead3b2SJayamohan Kallickal blk_iopoll_disable(&pbe_eq->iopoll); 4156bfead3b2SJayamohan Kallickal } 41576733b39aSJayamohan Kallickal 41586733b39aSJayamohan Kallickal beiscsi_clean_port(phba); 41596733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 4160e9b91193SJayamohan Kallickal real_offset = (u8 *)phba->csr_va + MPU_EP_SEMAPHORE; 4161e9b91193SJayamohan Kallickal 4162e9b91193SJayamohan Kallickal value = readl((void *)real_offset); 4163e9b91193SJayamohan Kallickal 4164e9b91193SJayamohan Kallickal if (value & 0x00010000) { 4165e9b91193SJayamohan Kallickal value &= 0xfffeffff; 4166e9b91193SJayamohan Kallickal writel(value, (void *)real_offset); 4167e9b91193SJayamohan Kallickal } 41686733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 41696733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 41706733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.size, 41716733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.va, 41726733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.dma); 417325602c97SJayamohan Kallickal } 417425602c97SJayamohan Kallickal 417525602c97SJayamohan Kallickal static void beiscsi_remove(struct pci_dev *pcidev) 417625602c97SJayamohan Kallickal { 417725602c97SJayamohan Kallickal 417825602c97SJayamohan Kallickal struct beiscsi_hba *phba = NULL; 417925602c97SJayamohan Kallickal 418025602c97SJayamohan Kallickal phba = pci_get_drvdata(pcidev); 418125602c97SJayamohan Kallickal if (!phba) { 418225602c97SJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_remove called with no phba\n"); 418325602c97SJayamohan Kallickal return; 418425602c97SJayamohan Kallickal } 418525602c97SJayamohan Kallickal 418625602c97SJayamohan Kallickal beiscsi_quiesce(phba); 41870b1d3cbfSJayamohan Kallickal iscsi_boot_destroy_kset(phba->boot_kset); 41886733b39aSJayamohan Kallickal iscsi_host_remove(phba->shost); 41896733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 41906733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 41918dce69ffSJayamohan Kallickal pci_disable_device(pcidev); 41926733b39aSJayamohan Kallickal } 41936733b39aSJayamohan Kallickal 419425602c97SJayamohan Kallickal static void beiscsi_shutdown(struct pci_dev *pcidev) 419525602c97SJayamohan Kallickal { 419625602c97SJayamohan Kallickal 419725602c97SJayamohan Kallickal struct beiscsi_hba *phba = NULL; 419825602c97SJayamohan Kallickal 419925602c97SJayamohan Kallickal phba = (struct beiscsi_hba *)pci_get_drvdata(pcidev); 420025602c97SJayamohan Kallickal if (!phba) { 420125602c97SJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_shutdown called with no phba\n"); 420225602c97SJayamohan Kallickal return; 420325602c97SJayamohan Kallickal } 420425602c97SJayamohan Kallickal 420525602c97SJayamohan Kallickal beiscsi_quiesce(phba); 42068dce69ffSJayamohan Kallickal pci_disable_device(pcidev); 420725602c97SJayamohan Kallickal } 420825602c97SJayamohan Kallickal 4209bfead3b2SJayamohan Kallickal static void beiscsi_msix_enable(struct beiscsi_hba *phba) 4210bfead3b2SJayamohan Kallickal { 4211bfead3b2SJayamohan Kallickal int i, status; 4212bfead3b2SJayamohan Kallickal 4213bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) 4214bfead3b2SJayamohan Kallickal phba->msix_entries[i].entry = i; 4215bfead3b2SJayamohan Kallickal 4216bfead3b2SJayamohan Kallickal status = pci_enable_msix(phba->pcidev, phba->msix_entries, 4217bfead3b2SJayamohan Kallickal (phba->num_cpus + 1)); 4218bfead3b2SJayamohan Kallickal if (!status) 4219bfead3b2SJayamohan Kallickal phba->msix_enabled = true; 4220bfead3b2SJayamohan Kallickal 4221bfead3b2SJayamohan Kallickal return; 4222bfead3b2SJayamohan Kallickal } 4223bfead3b2SJayamohan Kallickal 42246733b39aSJayamohan Kallickal static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev, 42256733b39aSJayamohan Kallickal const struct pci_device_id *id) 42266733b39aSJayamohan Kallickal { 42276733b39aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 4228bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 4229bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 4230bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 4231238f6b72SJayamohan Kallickal int ret, num_cpus, i; 4232e9b91193SJayamohan Kallickal u8 *real_offset = 0; 4233e9b91193SJayamohan Kallickal u32 value = 0; 42346733b39aSJayamohan Kallickal 42356733b39aSJayamohan Kallickal ret = beiscsi_enable_pci(pcidev); 42366733b39aSJayamohan Kallickal if (ret < 0) { 423782284c09SDan Carpenter dev_err(&pcidev->dev, "beiscsi_dev_probe-" 42386733b39aSJayamohan Kallickal " Failed to enable pci device\n"); 42396733b39aSJayamohan Kallickal return ret; 42406733b39aSJayamohan Kallickal } 42416733b39aSJayamohan Kallickal 42426733b39aSJayamohan Kallickal phba = beiscsi_hba_alloc(pcidev); 42436733b39aSJayamohan Kallickal if (!phba) { 42446733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_dev_probe-" 42456733b39aSJayamohan Kallickal " Failed in beiscsi_hba_alloc\n"); 42466733b39aSJayamohan Kallickal goto disable_pci; 42476733b39aSJayamohan Kallickal } 42486733b39aSJayamohan Kallickal 4249f98c96b0SJayamohan Kallickal switch (pcidev->device) { 4250f98c96b0SJayamohan Kallickal case BE_DEVICE_ID1: 4251f98c96b0SJayamohan Kallickal case OC_DEVICE_ID1: 4252f98c96b0SJayamohan Kallickal case OC_DEVICE_ID2: 4253f98c96b0SJayamohan Kallickal phba->generation = BE_GEN2; 4254f98c96b0SJayamohan Kallickal break; 4255f98c96b0SJayamohan Kallickal case BE_DEVICE_ID2: 4256f98c96b0SJayamohan Kallickal case OC_DEVICE_ID3: 4257f98c96b0SJayamohan Kallickal phba->generation = BE_GEN3; 4258f98c96b0SJayamohan Kallickal break; 4259f98c96b0SJayamohan Kallickal default: 4260f98c96b0SJayamohan Kallickal phba->generation = 0; 4261f98c96b0SJayamohan Kallickal } 4262f98c96b0SJayamohan Kallickal 4263bfead3b2SJayamohan Kallickal if (enable_msix) 4264bfead3b2SJayamohan Kallickal num_cpus = find_num_cpus(); 4265bfead3b2SJayamohan Kallickal else 4266bfead3b2SJayamohan Kallickal num_cpus = 1; 4267bfead3b2SJayamohan Kallickal phba->num_cpus = num_cpus; 4268bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "num_cpus = %d\n", phba->num_cpus); 4269bfead3b2SJayamohan Kallickal 4270bfead3b2SJayamohan Kallickal if (enable_msix) 4271bfead3b2SJayamohan Kallickal beiscsi_msix_enable(phba); 42726733b39aSJayamohan Kallickal ret = be_ctrl_init(phba, pcidev); 42736733b39aSJayamohan Kallickal if (ret) { 42746733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 42756733b39aSJayamohan Kallickal "Failed in be_ctrl_init\n"); 42766733b39aSJayamohan Kallickal goto hba_free; 42776733b39aSJayamohan Kallickal } 42786733b39aSJayamohan Kallickal 4279e9b91193SJayamohan Kallickal if (!num_hba) { 4280e9b91193SJayamohan Kallickal real_offset = (u8 *)phba->csr_va + MPU_EP_SEMAPHORE; 4281e9b91193SJayamohan Kallickal value = readl((void *)real_offset); 4282e9b91193SJayamohan Kallickal if (value & 0x00010000) { 4283e9b91193SJayamohan Kallickal gcrashmode++; 4284e9b91193SJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 4285e9b91193SJayamohan Kallickal "Loading Driver in crashdump mode\n"); 4286e5285860SJayamohan Kallickal ret = beiscsi_cmd_reset_function(phba); 4287e9b91193SJayamohan Kallickal if (ret) { 4288e9b91193SJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 4289e9b91193SJayamohan Kallickal "Reset Failed. Aborting Crashdump\n"); 4290e9b91193SJayamohan Kallickal goto hba_free; 4291e9b91193SJayamohan Kallickal } 4292e9b91193SJayamohan Kallickal ret = be_chk_reset_complete(phba); 4293e9b91193SJayamohan Kallickal if (ret) { 4294e9b91193SJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 4295e9b91193SJayamohan Kallickal "Failed to get out of reset." 4296e9b91193SJayamohan Kallickal "Aborting Crashdump\n"); 4297e9b91193SJayamohan Kallickal goto hba_free; 4298e9b91193SJayamohan Kallickal } 4299e9b91193SJayamohan Kallickal } else { 4300e9b91193SJayamohan Kallickal value |= 0x00010000; 4301e9b91193SJayamohan Kallickal writel(value, (void *)real_offset); 4302e9b91193SJayamohan Kallickal num_hba++; 4303e9b91193SJayamohan Kallickal } 4304e9b91193SJayamohan Kallickal } 4305e9b91193SJayamohan Kallickal 43066733b39aSJayamohan Kallickal spin_lock_init(&phba->io_sgl_lock); 43076733b39aSJayamohan Kallickal spin_lock_init(&phba->mgmt_sgl_lock); 43086733b39aSJayamohan Kallickal spin_lock_init(&phba->isr_lock); 43097da50879SJayamohan Kallickal ret = mgmt_get_fw_config(&phba->ctrl, phba); 43107da50879SJayamohan Kallickal if (ret != 0) { 43117da50879SJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 43127da50879SJayamohan Kallickal "Error getting fw config\n"); 43137da50879SJayamohan Kallickal goto free_port; 43147da50879SJayamohan Kallickal } 43157da50879SJayamohan Kallickal phba->shost->max_id = phba->fw_config.iscsi_cid_count; 43166733b39aSJayamohan Kallickal beiscsi_get_params(phba); 4317aa874f07SJayamohan Kallickal phba->shost->can_queue = phba->params.ios_per_ctrl; 43186733b39aSJayamohan Kallickal ret = beiscsi_init_port(phba); 43196733b39aSJayamohan Kallickal if (ret < 0) { 43206733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 43216733b39aSJayamohan Kallickal "Failed in beiscsi_init_port\n"); 43226733b39aSJayamohan Kallickal goto free_port; 43236733b39aSJayamohan Kallickal } 43246733b39aSJayamohan Kallickal 4325756d29c8SJayamohan Kallickal for (i = 0; i < MAX_MCC_CMD ; i++) { 4326756d29c8SJayamohan Kallickal init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]); 4327756d29c8SJayamohan Kallickal phba->ctrl.mcc_tag[i] = i + 1; 4328756d29c8SJayamohan Kallickal phba->ctrl.mcc_numtag[i + 1] = 0; 4329756d29c8SJayamohan Kallickal phba->ctrl.mcc_tag_available++; 4330756d29c8SJayamohan Kallickal } 4331756d29c8SJayamohan Kallickal 4332756d29c8SJayamohan Kallickal phba->ctrl.mcc_alloc_index = phba->ctrl.mcc_free_index = 0; 4333756d29c8SJayamohan Kallickal 43346733b39aSJayamohan Kallickal snprintf(phba->wq_name, sizeof(phba->wq_name), "beiscsi_q_irq%u", 43356733b39aSJayamohan Kallickal phba->shost->host_no); 4336278274d5STejun Heo phba->wq = alloc_workqueue(phba->wq_name, WQ_MEM_RECLAIM, 1); 43376733b39aSJayamohan Kallickal if (!phba->wq) { 43386733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 43396733b39aSJayamohan Kallickal "Failed to allocate work queue\n"); 43406733b39aSJayamohan Kallickal goto free_twq; 43416733b39aSJayamohan Kallickal } 43426733b39aSJayamohan Kallickal 43436733b39aSJayamohan Kallickal INIT_WORK(&phba->work_cqs, beiscsi_process_all_cqs); 43446733b39aSJayamohan Kallickal 4345bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 4346bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 43476733b39aSJayamohan Kallickal if (blk_iopoll_enabled) { 4348bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 4349bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 4350bfead3b2SJayamohan Kallickal blk_iopoll_init(&pbe_eq->iopoll, be_iopoll_budget, 4351bfead3b2SJayamohan Kallickal be_iopoll); 4352bfead3b2SJayamohan Kallickal blk_iopoll_enable(&pbe_eq->iopoll); 43536733b39aSJayamohan Kallickal } 4354bfead3b2SJayamohan Kallickal } 43556733b39aSJayamohan Kallickal ret = beiscsi_init_irqs(phba); 43566733b39aSJayamohan Kallickal if (ret < 0) { 43576733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 43586733b39aSJayamohan Kallickal "Failed to beiscsi_init_irqs\n"); 43596733b39aSJayamohan Kallickal goto free_blkenbld; 43606733b39aSJayamohan Kallickal } 4361238f6b72SJayamohan Kallickal hwi_enable_intr(phba); 4362f457a46fSMike Christie 4363f457a46fSMike Christie if (beiscsi_setup_boot_info(phba)) 4364f457a46fSMike Christie /* 4365f457a46fSMike Christie * log error but continue, because we may not be using 4366f457a46fSMike Christie * iscsi boot. 4367f457a46fSMike Christie */ 4368f457a46fSMike Christie shost_printk(KERN_ERR, phba->shost, "Could not set up " 4369f457a46fSMike Christie "iSCSI boot info."); 4370f457a46fSMike Christie 43716733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "\n\n\n SUCCESS - DRIVER LOADED\n\n\n"); 43726733b39aSJayamohan Kallickal return 0; 43736733b39aSJayamohan Kallickal 43746733b39aSJayamohan Kallickal free_blkenbld: 43756733b39aSJayamohan Kallickal destroy_workqueue(phba->wq); 43766733b39aSJayamohan Kallickal if (blk_iopoll_enabled) 4377bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 4378bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 4379bfead3b2SJayamohan Kallickal blk_iopoll_disable(&pbe_eq->iopoll); 4380bfead3b2SJayamohan Kallickal } 43816733b39aSJayamohan Kallickal free_twq: 43826733b39aSJayamohan Kallickal beiscsi_clean_port(phba); 43836733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 43846733b39aSJayamohan Kallickal free_port: 4385e9b91193SJayamohan Kallickal real_offset = (u8 *)phba->csr_va + MPU_EP_SEMAPHORE; 4386e9b91193SJayamohan Kallickal 4387e9b91193SJayamohan Kallickal value = readl((void *)real_offset); 4388e9b91193SJayamohan Kallickal 4389e9b91193SJayamohan Kallickal if (value & 0x00010000) { 4390e9b91193SJayamohan Kallickal value &= 0xfffeffff; 4391e9b91193SJayamohan Kallickal writel(value, (void *)real_offset); 4392e9b91193SJayamohan Kallickal } 4393e9b91193SJayamohan Kallickal 43946733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 43956733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.size, 43966733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.va, 43976733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.dma); 43986733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 43996733b39aSJayamohan Kallickal hba_free: 4400238f6b72SJayamohan Kallickal if (phba->msix_enabled) 4401238f6b72SJayamohan Kallickal pci_disable_msix(phba->pcidev); 44026733b39aSJayamohan Kallickal iscsi_host_remove(phba->shost); 44036733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 44046733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 44056733b39aSJayamohan Kallickal disable_pci: 44066733b39aSJayamohan Kallickal pci_disable_device(pcidev); 44076733b39aSJayamohan Kallickal return ret; 44086733b39aSJayamohan Kallickal } 44096733b39aSJayamohan Kallickal 44106733b39aSJayamohan Kallickal struct iscsi_transport beiscsi_iscsi_transport = { 44116733b39aSJayamohan Kallickal .owner = THIS_MODULE, 44126733b39aSJayamohan Kallickal .name = DRV_NAME, 44139db0fb3aSJayamohan Kallickal .caps = CAP_RECOVERY_L0 | CAP_HDRDGST | CAP_TEXT_NEGO | 44146733b39aSJayamohan Kallickal CAP_MULTI_R2T | CAP_DATADGST | CAP_DATA_PATH_OFFLOAD, 44156733b39aSJayamohan Kallickal .create_session = beiscsi_session_create, 44166733b39aSJayamohan Kallickal .destroy_session = beiscsi_session_destroy, 44176733b39aSJayamohan Kallickal .create_conn = beiscsi_conn_create, 44186733b39aSJayamohan Kallickal .bind_conn = beiscsi_conn_bind, 44196733b39aSJayamohan Kallickal .destroy_conn = iscsi_conn_teardown, 44203128c6c7SMike Christie .attr_is_visible = be2iscsi_attr_is_visible, 44216733b39aSJayamohan Kallickal .set_param = beiscsi_set_param, 4422c7f7fd5bSMike Christie .get_conn_param = iscsi_conn_get_param, 44236733b39aSJayamohan Kallickal .get_session_param = iscsi_session_get_param, 44246733b39aSJayamohan Kallickal .get_host_param = beiscsi_get_host_param, 44256733b39aSJayamohan Kallickal .start_conn = beiscsi_conn_start, 4426fa95d206SMike Christie .stop_conn = iscsi_conn_stop, 44276733b39aSJayamohan Kallickal .send_pdu = iscsi_conn_send_pdu, 44286733b39aSJayamohan Kallickal .xmit_task = beiscsi_task_xmit, 44296733b39aSJayamohan Kallickal .cleanup_task = beiscsi_cleanup_task, 44306733b39aSJayamohan Kallickal .alloc_pdu = beiscsi_alloc_pdu, 44316733b39aSJayamohan Kallickal .parse_pdu_itt = beiscsi_parse_pdu, 44326733b39aSJayamohan Kallickal .get_stats = beiscsi_conn_get_stats, 4433c7f7fd5bSMike Christie .get_ep_param = beiscsi_ep_get_param, 44346733b39aSJayamohan Kallickal .ep_connect = beiscsi_ep_connect, 44356733b39aSJayamohan Kallickal .ep_poll = beiscsi_ep_poll, 44366733b39aSJayamohan Kallickal .ep_disconnect = beiscsi_ep_disconnect, 44376733b39aSJayamohan Kallickal .session_recovery_timedout = iscsi_session_recovery_timedout, 44386733b39aSJayamohan Kallickal }; 44396733b39aSJayamohan Kallickal 44406733b39aSJayamohan Kallickal static struct pci_driver beiscsi_pci_driver = { 44416733b39aSJayamohan Kallickal .name = DRV_NAME, 44426733b39aSJayamohan Kallickal .probe = beiscsi_dev_probe, 44436733b39aSJayamohan Kallickal .remove = beiscsi_remove, 444425602c97SJayamohan Kallickal .shutdown = beiscsi_shutdown, 44456733b39aSJayamohan Kallickal .id_table = beiscsi_pci_id_table 44466733b39aSJayamohan Kallickal }; 44476733b39aSJayamohan Kallickal 4448bfead3b2SJayamohan Kallickal 44496733b39aSJayamohan Kallickal static int __init beiscsi_module_init(void) 44506733b39aSJayamohan Kallickal { 44516733b39aSJayamohan Kallickal int ret; 44526733b39aSJayamohan Kallickal 44536733b39aSJayamohan Kallickal beiscsi_scsi_transport = 44546733b39aSJayamohan Kallickal iscsi_register_transport(&beiscsi_iscsi_transport); 44556733b39aSJayamohan Kallickal if (!beiscsi_scsi_transport) { 44566733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 44576733b39aSJayamohan Kallickal "beiscsi_module_init - Unable to register beiscsi" 44586733b39aSJayamohan Kallickal "transport.\n"); 4459f55a24f2SJayamohan Kallickal return -ENOMEM; 44606733b39aSJayamohan Kallickal } 44616733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "In beiscsi_module_init, tt=%p\n", 44626733b39aSJayamohan Kallickal &beiscsi_iscsi_transport); 44636733b39aSJayamohan Kallickal 44646733b39aSJayamohan Kallickal ret = pci_register_driver(&beiscsi_pci_driver); 44656733b39aSJayamohan Kallickal if (ret) { 44666733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 44676733b39aSJayamohan Kallickal "beiscsi_module_init - Unable to register" 44686733b39aSJayamohan Kallickal "beiscsi pci driver.\n"); 44696733b39aSJayamohan Kallickal goto unregister_iscsi_transport; 44706733b39aSJayamohan Kallickal } 44716733b39aSJayamohan Kallickal return 0; 44726733b39aSJayamohan Kallickal 44736733b39aSJayamohan Kallickal unregister_iscsi_transport: 44746733b39aSJayamohan Kallickal iscsi_unregister_transport(&beiscsi_iscsi_transport); 44756733b39aSJayamohan Kallickal return ret; 44766733b39aSJayamohan Kallickal } 44776733b39aSJayamohan Kallickal 44786733b39aSJayamohan Kallickal static void __exit beiscsi_module_exit(void) 44796733b39aSJayamohan Kallickal { 44806733b39aSJayamohan Kallickal pci_unregister_driver(&beiscsi_pci_driver); 44816733b39aSJayamohan Kallickal iscsi_unregister_transport(&beiscsi_iscsi_transport); 44826733b39aSJayamohan Kallickal } 44836733b39aSJayamohan Kallickal 44846733b39aSJayamohan Kallickal module_init(beiscsi_module_init); 44856733b39aSJayamohan Kallickal module_exit(beiscsi_module_exit); 4486