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> 306733b39aSJayamohan Kallickal 316733b39aSJayamohan Kallickal #include <scsi/libiscsi.h> 326733b39aSJayamohan Kallickal #include <scsi/scsi_transport_iscsi.h> 336733b39aSJayamohan Kallickal #include <scsi/scsi_transport.h> 346733b39aSJayamohan Kallickal #include <scsi/scsi_cmnd.h> 356733b39aSJayamohan Kallickal #include <scsi/scsi_device.h> 366733b39aSJayamohan Kallickal #include <scsi/scsi_host.h> 376733b39aSJayamohan Kallickal #include <scsi/scsi.h> 386733b39aSJayamohan Kallickal #include "be_main.h" 396733b39aSJayamohan Kallickal #include "be_iscsi.h" 406733b39aSJayamohan Kallickal #include "be_mgmt.h" 416733b39aSJayamohan Kallickal 426733b39aSJayamohan Kallickal static unsigned int be_iopoll_budget = 10; 436733b39aSJayamohan Kallickal static unsigned int be_max_phys_size = 64; 44bfead3b2SJayamohan Kallickal static unsigned int enable_msix = 1; 45e9b91193SJayamohan Kallickal static unsigned int gcrashmode = 0; 46e9b91193SJayamohan Kallickal static unsigned int num_hba = 0; 476733b39aSJayamohan Kallickal 486733b39aSJayamohan Kallickal MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table); 496733b39aSJayamohan Kallickal MODULE_DESCRIPTION(DRV_DESC " " BUILD_STR); 506733b39aSJayamohan Kallickal MODULE_AUTHOR("ServerEngines Corporation"); 516733b39aSJayamohan Kallickal MODULE_LICENSE("GPL"); 526733b39aSJayamohan Kallickal module_param(be_iopoll_budget, int, 0); 536733b39aSJayamohan Kallickal module_param(enable_msix, int, 0); 546733b39aSJayamohan Kallickal module_param(be_max_phys_size, uint, S_IRUGO); 556733b39aSJayamohan Kallickal MODULE_PARM_DESC(be_max_phys_size, "Maximum Size (In Kilobytes) of physically" 566733b39aSJayamohan Kallickal "contiguous memory that can be allocated." 576733b39aSJayamohan Kallickal "Range is 16 - 128"); 586733b39aSJayamohan Kallickal 596733b39aSJayamohan Kallickal static int beiscsi_slave_configure(struct scsi_device *sdev) 606733b39aSJayamohan Kallickal { 616733b39aSJayamohan Kallickal blk_queue_max_segment_size(sdev->request_queue, 65536); 626733b39aSJayamohan Kallickal return 0; 636733b39aSJayamohan Kallickal } 646733b39aSJayamohan Kallickal 654183122dSJayamohan Kallickal static int beiscsi_eh_abort(struct scsi_cmnd *sc) 664183122dSJayamohan Kallickal { 674183122dSJayamohan Kallickal struct iscsi_cls_session *cls_session; 684183122dSJayamohan Kallickal struct iscsi_task *aborted_task = (struct iscsi_task *)sc->SCp.ptr; 694183122dSJayamohan Kallickal struct beiscsi_io_task *aborted_io_task; 704183122dSJayamohan Kallickal struct iscsi_conn *conn; 714183122dSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 724183122dSJayamohan Kallickal struct beiscsi_hba *phba; 734183122dSJayamohan Kallickal struct iscsi_session *session; 744183122dSJayamohan Kallickal struct invalidate_command_table *inv_tbl; 753cbb7a74SJayamohan Kallickal struct be_dma_mem nonemb_cmd; 764183122dSJayamohan Kallickal unsigned int cid, tag, num_invalidate; 774183122dSJayamohan Kallickal 784183122dSJayamohan Kallickal cls_session = starget_to_session(scsi_target(sc->device)); 794183122dSJayamohan Kallickal session = cls_session->dd_data; 804183122dSJayamohan Kallickal 814183122dSJayamohan Kallickal spin_lock_bh(&session->lock); 824183122dSJayamohan Kallickal if (!aborted_task || !aborted_task->sc) { 834183122dSJayamohan Kallickal /* we raced */ 844183122dSJayamohan Kallickal spin_unlock_bh(&session->lock); 854183122dSJayamohan Kallickal return SUCCESS; 864183122dSJayamohan Kallickal } 874183122dSJayamohan Kallickal 884183122dSJayamohan Kallickal aborted_io_task = aborted_task->dd_data; 894183122dSJayamohan Kallickal if (!aborted_io_task->scsi_cmnd) { 904183122dSJayamohan Kallickal /* raced or invalid command */ 914183122dSJayamohan Kallickal spin_unlock_bh(&session->lock); 924183122dSJayamohan Kallickal return SUCCESS; 934183122dSJayamohan Kallickal } 944183122dSJayamohan Kallickal spin_unlock_bh(&session->lock); 954183122dSJayamohan Kallickal conn = aborted_task->conn; 964183122dSJayamohan Kallickal beiscsi_conn = conn->dd_data; 974183122dSJayamohan Kallickal phba = beiscsi_conn->phba; 984183122dSJayamohan Kallickal 994183122dSJayamohan Kallickal /* invalidate iocb */ 1004183122dSJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 1014183122dSJayamohan Kallickal inv_tbl = phba->inv_tbl; 1024183122dSJayamohan Kallickal memset(inv_tbl, 0x0, sizeof(*inv_tbl)); 1034183122dSJayamohan Kallickal inv_tbl->cid = cid; 1044183122dSJayamohan Kallickal inv_tbl->icd = aborted_io_task->psgl_handle->sgl_index; 1054183122dSJayamohan Kallickal num_invalidate = 1; 1063cbb7a74SJayamohan Kallickal nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev, 1073cbb7a74SJayamohan Kallickal sizeof(struct invalidate_commands_params_in), 1083cbb7a74SJayamohan Kallickal &nonemb_cmd.dma); 1093cbb7a74SJayamohan Kallickal if (nonemb_cmd.va == NULL) { 1103cbb7a74SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 1113cbb7a74SJayamohan Kallickal "Failed to allocate memory for" 1123cbb7a74SJayamohan Kallickal "mgmt_invalidate_icds\n"); 1133cbb7a74SJayamohan Kallickal return FAILED; 1143cbb7a74SJayamohan Kallickal } 1153cbb7a74SJayamohan Kallickal nonemb_cmd.size = sizeof(struct invalidate_commands_params_in); 1163cbb7a74SJayamohan Kallickal 1173cbb7a74SJayamohan Kallickal tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, 1183cbb7a74SJayamohan Kallickal cid, &nonemb_cmd); 1194183122dSJayamohan Kallickal if (!tag) { 1204183122dSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 1214183122dSJayamohan Kallickal "mgmt_invalidate_icds could not be" 1224183122dSJayamohan Kallickal " submitted\n"); 1233cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 1243cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 1253cbb7a74SJayamohan Kallickal 1264183122dSJayamohan Kallickal return FAILED; 1274183122dSJayamohan Kallickal } else { 1284183122dSJayamohan Kallickal wait_event_interruptible(phba->ctrl.mcc_wait[tag], 1294183122dSJayamohan Kallickal phba->ctrl.mcc_numtag[tag]); 1304183122dSJayamohan Kallickal free_mcc_tag(&phba->ctrl, tag); 1314183122dSJayamohan Kallickal } 1323cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 1333cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 1344183122dSJayamohan Kallickal return iscsi_eh_abort(sc); 1354183122dSJayamohan Kallickal } 1364183122dSJayamohan Kallickal 1374183122dSJayamohan Kallickal static int beiscsi_eh_device_reset(struct scsi_cmnd *sc) 1384183122dSJayamohan Kallickal { 1394183122dSJayamohan Kallickal struct iscsi_task *abrt_task; 1404183122dSJayamohan Kallickal struct beiscsi_io_task *abrt_io_task; 1414183122dSJayamohan Kallickal struct iscsi_conn *conn; 1424183122dSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 1434183122dSJayamohan Kallickal struct beiscsi_hba *phba; 1444183122dSJayamohan Kallickal struct iscsi_session *session; 1454183122dSJayamohan Kallickal struct iscsi_cls_session *cls_session; 1464183122dSJayamohan Kallickal struct invalidate_command_table *inv_tbl; 1473cbb7a74SJayamohan Kallickal struct be_dma_mem nonemb_cmd; 1484183122dSJayamohan Kallickal unsigned int cid, tag, i, num_invalidate; 1494183122dSJayamohan Kallickal int rc = FAILED; 1504183122dSJayamohan Kallickal 1514183122dSJayamohan Kallickal /* invalidate iocbs */ 1524183122dSJayamohan Kallickal cls_session = starget_to_session(scsi_target(sc->device)); 1534183122dSJayamohan Kallickal session = cls_session->dd_data; 1544183122dSJayamohan Kallickal spin_lock_bh(&session->lock); 1554183122dSJayamohan Kallickal if (!session->leadconn || session->state != ISCSI_STATE_LOGGED_IN) 1564183122dSJayamohan Kallickal goto unlock; 1574183122dSJayamohan Kallickal 1584183122dSJayamohan Kallickal conn = session->leadconn; 1594183122dSJayamohan Kallickal beiscsi_conn = conn->dd_data; 1604183122dSJayamohan Kallickal phba = beiscsi_conn->phba; 1614183122dSJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 1624183122dSJayamohan Kallickal inv_tbl = phba->inv_tbl; 1634183122dSJayamohan Kallickal memset(inv_tbl, 0x0, sizeof(*inv_tbl) * BE2_CMDS_PER_CXN); 1644183122dSJayamohan Kallickal num_invalidate = 0; 1654183122dSJayamohan Kallickal for (i = 0; i < conn->session->cmds_max; i++) { 1664183122dSJayamohan Kallickal abrt_task = conn->session->cmds[i]; 1674183122dSJayamohan Kallickal abrt_io_task = abrt_task->dd_data; 1684183122dSJayamohan Kallickal if (!abrt_task->sc || abrt_task->state == ISCSI_TASK_FREE) 1694183122dSJayamohan Kallickal continue; 1704183122dSJayamohan Kallickal 1714183122dSJayamohan Kallickal if (abrt_task->sc->device->lun != abrt_task->sc->device->lun) 1724183122dSJayamohan Kallickal continue; 1734183122dSJayamohan Kallickal 1744183122dSJayamohan Kallickal inv_tbl->cid = cid; 1754183122dSJayamohan Kallickal inv_tbl->icd = abrt_io_task->psgl_handle->sgl_index; 1764183122dSJayamohan Kallickal num_invalidate++; 1774183122dSJayamohan Kallickal inv_tbl++; 1784183122dSJayamohan Kallickal } 1794183122dSJayamohan Kallickal spin_unlock_bh(&session->lock); 1804183122dSJayamohan Kallickal inv_tbl = phba->inv_tbl; 1814183122dSJayamohan Kallickal 1823cbb7a74SJayamohan Kallickal nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev, 1833cbb7a74SJayamohan Kallickal sizeof(struct invalidate_commands_params_in), 1843cbb7a74SJayamohan Kallickal &nonemb_cmd.dma); 1853cbb7a74SJayamohan Kallickal if (nonemb_cmd.va == NULL) { 1863cbb7a74SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 1873cbb7a74SJayamohan Kallickal "Failed to allocate memory for" 1883cbb7a74SJayamohan Kallickal "mgmt_invalidate_icds\n"); 1893cbb7a74SJayamohan Kallickal return FAILED; 1903cbb7a74SJayamohan Kallickal } 1913cbb7a74SJayamohan Kallickal nonemb_cmd.size = sizeof(struct invalidate_commands_params_in); 1923cbb7a74SJayamohan Kallickal memset(nonemb_cmd.va, 0, nonemb_cmd.size); 1933cbb7a74SJayamohan Kallickal tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, 1943cbb7a74SJayamohan Kallickal cid, &nonemb_cmd); 1954183122dSJayamohan Kallickal if (!tag) { 1964183122dSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 1974183122dSJayamohan Kallickal "mgmt_invalidate_icds could not be" 1984183122dSJayamohan Kallickal " submitted\n"); 1993cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 2003cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 2014183122dSJayamohan Kallickal return FAILED; 2024183122dSJayamohan Kallickal } else { 2034183122dSJayamohan Kallickal wait_event_interruptible(phba->ctrl.mcc_wait[tag], 2044183122dSJayamohan Kallickal phba->ctrl.mcc_numtag[tag]); 2054183122dSJayamohan Kallickal free_mcc_tag(&phba->ctrl, tag); 2064183122dSJayamohan Kallickal } 2073cbb7a74SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 2083cbb7a74SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 2094183122dSJayamohan Kallickal return iscsi_eh_device_reset(sc); 2104183122dSJayamohan Kallickal unlock: 2114183122dSJayamohan Kallickal spin_unlock_bh(&session->lock); 2124183122dSJayamohan Kallickal return rc; 2134183122dSJayamohan Kallickal } 2144183122dSJayamohan Kallickal 215c7acc5b8SJayamohan Kallickal static ssize_t beiscsi_show_boot_tgt_info(void *data, int type, char *buf) 216c7acc5b8SJayamohan Kallickal { 217c7acc5b8SJayamohan Kallickal struct beiscsi_hba *phba = data; 218f457a46fSMike Christie struct mgmt_session_info *boot_sess = &phba->boot_sess; 219f457a46fSMike Christie struct mgmt_conn_info *boot_conn = &boot_sess->conn_list[0]; 220c7acc5b8SJayamohan Kallickal char *str = buf; 221c7acc5b8SJayamohan Kallickal int rc; 222c7acc5b8SJayamohan Kallickal 223c7acc5b8SJayamohan Kallickal switch (type) { 224c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NAME: 225c7acc5b8SJayamohan Kallickal rc = sprintf(buf, "%.*s\n", 226f457a46fSMike Christie (int)strlen(boot_sess->target_name), 227f457a46fSMike Christie (char *)&boot_sess->target_name); 228c7acc5b8SJayamohan Kallickal break; 229c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_IP_ADDR: 230f457a46fSMike Christie if (boot_conn->dest_ipaddr.ip_type == 0x1) 231c7acc5b8SJayamohan Kallickal rc = sprintf(buf, "%pI4\n", 232f457a46fSMike Christie (char *)&boot_conn->dest_ipaddr.ip_address); 233c7acc5b8SJayamohan Kallickal else 234c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%pI6\n", 235f457a46fSMike Christie (char *)&boot_conn->dest_ipaddr.ip_address); 236c7acc5b8SJayamohan Kallickal break; 237c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_PORT: 238f457a46fSMike Christie rc = sprintf(str, "%d\n", boot_conn->dest_port); 239c7acc5b8SJayamohan Kallickal break; 240c7acc5b8SJayamohan Kallickal 241c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_NAME: 242c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 243f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 244c7acc5b8SJayamohan Kallickal target_chap_name_length, 245f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 246f457a46fSMike Christie auth_data.chap.target_chap_name); 247c7acc5b8SJayamohan Kallickal break; 248c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_SECRET: 249c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 250f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 251c7acc5b8SJayamohan Kallickal target_secret_length, 252f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 253f457a46fSMike Christie auth_data.chap.target_secret); 254c7acc5b8SJayamohan Kallickal break; 255c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_NAME: 256c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 257f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 258c7acc5b8SJayamohan Kallickal intr_chap_name_length, 259f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 260f457a46fSMike Christie auth_data.chap.intr_chap_name); 261c7acc5b8SJayamohan Kallickal break; 262c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 263c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%.*s\n", 264f457a46fSMike Christie boot_conn->negotiated_login_options.auth_data.chap. 265c7acc5b8SJayamohan Kallickal intr_secret_length, 266f457a46fSMike Christie (char *)&boot_conn->negotiated_login_options. 267f457a46fSMike Christie auth_data.chap.intr_secret); 268c7acc5b8SJayamohan Kallickal break; 269c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_FLAGS: 270c7acc5b8SJayamohan Kallickal rc = sprintf(str, "2\n"); 271c7acc5b8SJayamohan Kallickal break; 272c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NIC_ASSOC: 273c7acc5b8SJayamohan Kallickal rc = sprintf(str, "0\n"); 274c7acc5b8SJayamohan Kallickal break; 275c7acc5b8SJayamohan Kallickal default: 276c7acc5b8SJayamohan Kallickal rc = -ENOSYS; 277c7acc5b8SJayamohan Kallickal break; 278c7acc5b8SJayamohan Kallickal } 279c7acc5b8SJayamohan Kallickal return rc; 280c7acc5b8SJayamohan Kallickal } 281c7acc5b8SJayamohan Kallickal 282c7acc5b8SJayamohan Kallickal static ssize_t beiscsi_show_boot_ini_info(void *data, int type, char *buf) 283c7acc5b8SJayamohan Kallickal { 284c7acc5b8SJayamohan Kallickal struct beiscsi_hba *phba = data; 285c7acc5b8SJayamohan Kallickal char *str = buf; 286c7acc5b8SJayamohan Kallickal int rc; 287c7acc5b8SJayamohan Kallickal 288c7acc5b8SJayamohan Kallickal switch (type) { 289c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_INI_INITIATOR_NAME: 290c7acc5b8SJayamohan Kallickal rc = sprintf(str, "%s\n", phba->boot_sess.initiator_iscsiname); 291c7acc5b8SJayamohan Kallickal break; 292c7acc5b8SJayamohan Kallickal default: 293c7acc5b8SJayamohan Kallickal rc = -ENOSYS; 294c7acc5b8SJayamohan Kallickal break; 295c7acc5b8SJayamohan Kallickal } 296c7acc5b8SJayamohan Kallickal return rc; 297c7acc5b8SJayamohan Kallickal } 298c7acc5b8SJayamohan Kallickal 299c7acc5b8SJayamohan Kallickal static ssize_t beiscsi_show_boot_eth_info(void *data, int type, char *buf) 300c7acc5b8SJayamohan Kallickal { 301c7acc5b8SJayamohan Kallickal struct beiscsi_hba *phba = data; 302c7acc5b8SJayamohan Kallickal char *str = buf; 303c7acc5b8SJayamohan Kallickal int rc; 304c7acc5b8SJayamohan Kallickal 305c7acc5b8SJayamohan Kallickal switch (type) { 306c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_FLAGS: 307c7acc5b8SJayamohan Kallickal rc = sprintf(str, "2\n"); 308c7acc5b8SJayamohan Kallickal break; 309c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_INDEX: 310c7acc5b8SJayamohan Kallickal rc = sprintf(str, "0\n"); 311c7acc5b8SJayamohan Kallickal break; 312c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_MAC: 313c7acc5b8SJayamohan Kallickal rc = beiscsi_get_macaddr(buf, phba); 314c7acc5b8SJayamohan Kallickal if (rc < 0) { 315c7acc5b8SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "beiscsi_get_macaddr Failed\n"); 316c7acc5b8SJayamohan Kallickal return rc; 317c7acc5b8SJayamohan Kallickal } 318c7acc5b8SJayamohan Kallickal break; 319c7acc5b8SJayamohan Kallickal default: 320c7acc5b8SJayamohan Kallickal rc = -ENOSYS; 321c7acc5b8SJayamohan Kallickal break; 322c7acc5b8SJayamohan Kallickal } 323c7acc5b8SJayamohan Kallickal return rc; 324c7acc5b8SJayamohan Kallickal } 325c7acc5b8SJayamohan Kallickal 326c7acc5b8SJayamohan Kallickal 327c7acc5b8SJayamohan Kallickal static mode_t beiscsi_tgt_get_attr_visibility(void *data, int type) 328c7acc5b8SJayamohan Kallickal { 329c7acc5b8SJayamohan Kallickal int rc; 330c7acc5b8SJayamohan Kallickal 331c7acc5b8SJayamohan Kallickal switch (type) { 332c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NAME: 333c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_IP_ADDR: 334c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_PORT: 335c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_NAME: 336c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_CHAP_SECRET: 337c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_NAME: 338c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 339c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_NIC_ASSOC: 340c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_TGT_FLAGS: 341c7acc5b8SJayamohan Kallickal rc = S_IRUGO; 342c7acc5b8SJayamohan Kallickal break; 343c7acc5b8SJayamohan Kallickal default: 344c7acc5b8SJayamohan Kallickal rc = 0; 345c7acc5b8SJayamohan Kallickal break; 346c7acc5b8SJayamohan Kallickal } 347c7acc5b8SJayamohan Kallickal return rc; 348c7acc5b8SJayamohan Kallickal } 349c7acc5b8SJayamohan Kallickal 350c7acc5b8SJayamohan Kallickal static mode_t beiscsi_ini_get_attr_visibility(void *data, int type) 351c7acc5b8SJayamohan Kallickal { 352c7acc5b8SJayamohan Kallickal int rc; 353c7acc5b8SJayamohan Kallickal 354c7acc5b8SJayamohan Kallickal switch (type) { 355c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_INI_INITIATOR_NAME: 356c7acc5b8SJayamohan Kallickal rc = S_IRUGO; 357c7acc5b8SJayamohan Kallickal break; 358c7acc5b8SJayamohan Kallickal default: 359c7acc5b8SJayamohan Kallickal rc = 0; 360c7acc5b8SJayamohan Kallickal break; 361c7acc5b8SJayamohan Kallickal } 362c7acc5b8SJayamohan Kallickal return rc; 363c7acc5b8SJayamohan Kallickal } 364c7acc5b8SJayamohan Kallickal 365c7acc5b8SJayamohan Kallickal 366c7acc5b8SJayamohan Kallickal static mode_t beiscsi_eth_get_attr_visibility(void *data, int type) 367c7acc5b8SJayamohan Kallickal { 368c7acc5b8SJayamohan Kallickal int rc; 369c7acc5b8SJayamohan Kallickal 370c7acc5b8SJayamohan Kallickal switch (type) { 371c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_FLAGS: 372c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_MAC: 373c7acc5b8SJayamohan Kallickal case ISCSI_BOOT_ETH_INDEX: 374c7acc5b8SJayamohan Kallickal rc = S_IRUGO; 375c7acc5b8SJayamohan Kallickal break; 376c7acc5b8SJayamohan Kallickal default: 377c7acc5b8SJayamohan Kallickal rc = 0; 378c7acc5b8SJayamohan Kallickal break; 379c7acc5b8SJayamohan Kallickal } 380c7acc5b8SJayamohan Kallickal return rc; 381c7acc5b8SJayamohan Kallickal } 382c7acc5b8SJayamohan Kallickal 383bfead3b2SJayamohan Kallickal /*------------------- PCI Driver operations and data ----------------- */ 384bfead3b2SJayamohan Kallickal static DEFINE_PCI_DEVICE_TABLE(beiscsi_pci_id_table) = { 385bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) }, 386f98c96b0SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) }, 387bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) }, 388bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) }, 389bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) }, 390bfead3b2SJayamohan Kallickal { 0 } 391bfead3b2SJayamohan Kallickal }; 392bfead3b2SJayamohan Kallickal MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table); 393bfead3b2SJayamohan Kallickal 3946733b39aSJayamohan Kallickal static struct scsi_host_template beiscsi_sht = { 3956733b39aSJayamohan Kallickal .module = THIS_MODULE, 3966733b39aSJayamohan Kallickal .name = "ServerEngines 10Gbe open-iscsi Initiator Driver", 3976733b39aSJayamohan Kallickal .proc_name = DRV_NAME, 3986733b39aSJayamohan Kallickal .queuecommand = iscsi_queuecommand, 3996733b39aSJayamohan Kallickal .change_queue_depth = iscsi_change_queue_depth, 4006733b39aSJayamohan Kallickal .slave_configure = beiscsi_slave_configure, 4016733b39aSJayamohan Kallickal .target_alloc = iscsi_target_alloc, 4024183122dSJayamohan Kallickal .eh_abort_handler = beiscsi_eh_abort, 4034183122dSJayamohan Kallickal .eh_device_reset_handler = beiscsi_eh_device_reset, 404309ce156SJayamohan Kallickal .eh_target_reset_handler = iscsi_eh_session_reset, 4056733b39aSJayamohan Kallickal .sg_tablesize = BEISCSI_SGLIST_ELEMENTS, 4066733b39aSJayamohan Kallickal .can_queue = BE2_IO_DEPTH, 4076733b39aSJayamohan Kallickal .this_id = -1, 4086733b39aSJayamohan Kallickal .max_sectors = BEISCSI_MAX_SECTORS, 4096733b39aSJayamohan Kallickal .cmd_per_lun = BEISCSI_CMD_PER_LUN, 4106733b39aSJayamohan Kallickal .use_clustering = ENABLE_CLUSTERING, 4116733b39aSJayamohan Kallickal }; 4126733b39aSJayamohan Kallickal 413bfead3b2SJayamohan Kallickal static struct scsi_transport_template *beiscsi_scsi_transport; 4146733b39aSJayamohan Kallickal 4156733b39aSJayamohan Kallickal static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev) 4166733b39aSJayamohan Kallickal { 4176733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 4186733b39aSJayamohan Kallickal struct Scsi_Host *shost; 4196733b39aSJayamohan Kallickal 4206733b39aSJayamohan Kallickal shost = iscsi_host_alloc(&beiscsi_sht, sizeof(*phba), 0); 4216733b39aSJayamohan Kallickal if (!shost) { 4226733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_hba_alloc -" 4236733b39aSJayamohan Kallickal "iscsi_host_alloc failed\n"); 4246733b39aSJayamohan Kallickal return NULL; 4256733b39aSJayamohan Kallickal } 4266733b39aSJayamohan Kallickal shost->dma_boundary = pcidev->dma_mask; 4276733b39aSJayamohan Kallickal shost->max_id = BE2_MAX_SESSIONS; 4286733b39aSJayamohan Kallickal shost->max_channel = 0; 4296733b39aSJayamohan Kallickal shost->max_cmd_len = BEISCSI_MAX_CMD_LEN; 4306733b39aSJayamohan Kallickal shost->max_lun = BEISCSI_NUM_MAX_LUN; 4316733b39aSJayamohan Kallickal shost->transportt = beiscsi_scsi_transport; 4326733b39aSJayamohan Kallickal phba = iscsi_host_priv(shost); 4336733b39aSJayamohan Kallickal memset(phba, 0, sizeof(*phba)); 4346733b39aSJayamohan Kallickal phba->shost = shost; 4356733b39aSJayamohan Kallickal phba->pcidev = pci_dev_get(pcidev); 4362807afb7SJayamohan Kallickal pci_set_drvdata(pcidev, phba); 4376733b39aSJayamohan Kallickal 4386733b39aSJayamohan Kallickal if (iscsi_host_add(shost, &phba->pcidev->dev)) 4396733b39aSJayamohan Kallickal goto free_devices; 440c7acc5b8SJayamohan Kallickal 4416733b39aSJayamohan Kallickal return phba; 4426733b39aSJayamohan Kallickal 4436733b39aSJayamohan Kallickal free_devices: 4446733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 4456733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 4466733b39aSJayamohan Kallickal return NULL; 4476733b39aSJayamohan Kallickal } 4486733b39aSJayamohan Kallickal 4496733b39aSJayamohan Kallickal static void beiscsi_unmap_pci_function(struct beiscsi_hba *phba) 4506733b39aSJayamohan Kallickal { 4516733b39aSJayamohan Kallickal if (phba->csr_va) { 4526733b39aSJayamohan Kallickal iounmap(phba->csr_va); 4536733b39aSJayamohan Kallickal phba->csr_va = NULL; 4546733b39aSJayamohan Kallickal } 4556733b39aSJayamohan Kallickal if (phba->db_va) { 4566733b39aSJayamohan Kallickal iounmap(phba->db_va); 4576733b39aSJayamohan Kallickal phba->db_va = NULL; 4586733b39aSJayamohan Kallickal } 4596733b39aSJayamohan Kallickal if (phba->pci_va) { 4606733b39aSJayamohan Kallickal iounmap(phba->pci_va); 4616733b39aSJayamohan Kallickal phba->pci_va = NULL; 4626733b39aSJayamohan Kallickal } 4636733b39aSJayamohan Kallickal } 4646733b39aSJayamohan Kallickal 4656733b39aSJayamohan Kallickal static int beiscsi_map_pci_bars(struct beiscsi_hba *phba, 4666733b39aSJayamohan Kallickal struct pci_dev *pcidev) 4676733b39aSJayamohan Kallickal { 4686733b39aSJayamohan Kallickal u8 __iomem *addr; 469f98c96b0SJayamohan Kallickal int pcicfg_reg; 4706733b39aSJayamohan Kallickal 4716733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 2), 4726733b39aSJayamohan Kallickal pci_resource_len(pcidev, 2)); 4736733b39aSJayamohan Kallickal if (addr == NULL) 4746733b39aSJayamohan Kallickal return -ENOMEM; 4756733b39aSJayamohan Kallickal phba->ctrl.csr = addr; 4766733b39aSJayamohan Kallickal phba->csr_va = addr; 4776733b39aSJayamohan Kallickal phba->csr_pa.u.a64.address = pci_resource_start(pcidev, 2); 4786733b39aSJayamohan Kallickal 4796733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 4), 128 * 1024); 4806733b39aSJayamohan Kallickal if (addr == NULL) 4816733b39aSJayamohan Kallickal goto pci_map_err; 4826733b39aSJayamohan Kallickal phba->ctrl.db = addr; 4836733b39aSJayamohan Kallickal phba->db_va = addr; 4846733b39aSJayamohan Kallickal phba->db_pa.u.a64.address = pci_resource_start(pcidev, 4); 4856733b39aSJayamohan Kallickal 486f98c96b0SJayamohan Kallickal if (phba->generation == BE_GEN2) 487f98c96b0SJayamohan Kallickal pcicfg_reg = 1; 488f98c96b0SJayamohan Kallickal else 489f98c96b0SJayamohan Kallickal pcicfg_reg = 0; 490f98c96b0SJayamohan Kallickal 491f98c96b0SJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, pcicfg_reg), 492f98c96b0SJayamohan Kallickal pci_resource_len(pcidev, pcicfg_reg)); 493f98c96b0SJayamohan Kallickal 4946733b39aSJayamohan Kallickal if (addr == NULL) 4956733b39aSJayamohan Kallickal goto pci_map_err; 4966733b39aSJayamohan Kallickal phba->ctrl.pcicfg = addr; 4976733b39aSJayamohan Kallickal phba->pci_va = addr; 498f98c96b0SJayamohan Kallickal phba->pci_pa.u.a64.address = pci_resource_start(pcidev, pcicfg_reg); 4996733b39aSJayamohan Kallickal return 0; 5006733b39aSJayamohan Kallickal 5016733b39aSJayamohan Kallickal pci_map_err: 5026733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 5036733b39aSJayamohan Kallickal return -ENOMEM; 5046733b39aSJayamohan Kallickal } 5056733b39aSJayamohan Kallickal 5066733b39aSJayamohan Kallickal static int beiscsi_enable_pci(struct pci_dev *pcidev) 5076733b39aSJayamohan Kallickal { 5086733b39aSJayamohan Kallickal int ret; 5096733b39aSJayamohan Kallickal 5106733b39aSJayamohan Kallickal ret = pci_enable_device(pcidev); 5116733b39aSJayamohan Kallickal if (ret) { 5126733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_enable_pci - enable device " 5136733b39aSJayamohan Kallickal "failed. Returning -ENODEV\n"); 5146733b39aSJayamohan Kallickal return ret; 5156733b39aSJayamohan Kallickal } 5166733b39aSJayamohan Kallickal 517bfead3b2SJayamohan Kallickal pci_set_master(pcidev); 5186733b39aSJayamohan Kallickal if (pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64))) { 5196733b39aSJayamohan Kallickal ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32)); 5206733b39aSJayamohan Kallickal if (ret) { 5216733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n"); 5226733b39aSJayamohan Kallickal pci_disable_device(pcidev); 5236733b39aSJayamohan Kallickal return ret; 5246733b39aSJayamohan Kallickal } 5256733b39aSJayamohan Kallickal } 5266733b39aSJayamohan Kallickal return 0; 5276733b39aSJayamohan Kallickal } 5286733b39aSJayamohan Kallickal 5296733b39aSJayamohan Kallickal static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev) 5306733b39aSJayamohan Kallickal { 5316733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 5326733b39aSJayamohan Kallickal struct be_dma_mem *mbox_mem_alloc = &ctrl->mbox_mem_alloced; 5336733b39aSJayamohan Kallickal struct be_dma_mem *mbox_mem_align = &ctrl->mbox_mem; 5346733b39aSJayamohan Kallickal int status = 0; 5356733b39aSJayamohan Kallickal 5366733b39aSJayamohan Kallickal ctrl->pdev = pdev; 5376733b39aSJayamohan Kallickal status = beiscsi_map_pci_bars(phba, pdev); 5386733b39aSJayamohan Kallickal if (status) 5396733b39aSJayamohan Kallickal return status; 5406733b39aSJayamohan Kallickal mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16; 5416733b39aSJayamohan Kallickal mbox_mem_alloc->va = pci_alloc_consistent(pdev, 5426733b39aSJayamohan Kallickal mbox_mem_alloc->size, 5436733b39aSJayamohan Kallickal &mbox_mem_alloc->dma); 5446733b39aSJayamohan Kallickal if (!mbox_mem_alloc->va) { 5456733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 5466733b39aSJayamohan Kallickal status = -ENOMEM; 5476733b39aSJayamohan Kallickal return status; 5486733b39aSJayamohan Kallickal } 5496733b39aSJayamohan Kallickal 5506733b39aSJayamohan Kallickal mbox_mem_align->size = sizeof(struct be_mcc_mailbox); 5516733b39aSJayamohan Kallickal mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16); 5526733b39aSJayamohan Kallickal mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16); 5536733b39aSJayamohan Kallickal memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox)); 5546733b39aSJayamohan Kallickal spin_lock_init(&ctrl->mbox_lock); 555bfead3b2SJayamohan Kallickal spin_lock_init(&phba->ctrl.mcc_lock); 556bfead3b2SJayamohan Kallickal spin_lock_init(&phba->ctrl.mcc_cq_lock); 557bfead3b2SJayamohan Kallickal 5586733b39aSJayamohan Kallickal return status; 5596733b39aSJayamohan Kallickal } 5606733b39aSJayamohan Kallickal 5616733b39aSJayamohan Kallickal static void beiscsi_get_params(struct beiscsi_hba *phba) 5626733b39aSJayamohan Kallickal { 5637da50879SJayamohan Kallickal phba->params.ios_per_ctrl = (phba->fw_config.iscsi_icd_count 5647da50879SJayamohan Kallickal - (phba->fw_config.iscsi_cid_count 5657da50879SJayamohan Kallickal + BE2_TMFS 5667da50879SJayamohan Kallickal + BE2_NOPOUT_REQ)); 5677da50879SJayamohan Kallickal phba->params.cxns_per_ctrl = phba->fw_config.iscsi_cid_count; 568ed58ea2aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl = phba->fw_config.iscsi_cid_count * 2; 5696eab04a8SJustin P. Mattock phba->params.icds_per_ctrl = phba->fw_config.iscsi_icd_count; 5706733b39aSJayamohan Kallickal phba->params.num_sge_per_io = BE2_SGE; 5716733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz = BE2_DEFPDU_HDR_SZ; 5726733b39aSJayamohan Kallickal phba->params.defpdu_data_sz = BE2_DEFPDU_DATA_SZ; 5736733b39aSJayamohan Kallickal phba->params.eq_timer = 64; 5746733b39aSJayamohan Kallickal phba->params.num_eq_entries = 5757da50879SJayamohan Kallickal (((BE2_CMDS_PER_CXN * 2 + phba->fw_config.iscsi_cid_count * 2 5767da50879SJayamohan Kallickal + BE2_TMFS) / 512) + 1) * 512; 5776733b39aSJayamohan Kallickal phba->params.num_eq_entries = (phba->params.num_eq_entries < 1024) 5786733b39aSJayamohan Kallickal ? 1024 : phba->params.num_eq_entries; 5796733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "phba->params.num_eq_entries=%d\n", 5806733b39aSJayamohan Kallickal phba->params.num_eq_entries); 5816733b39aSJayamohan Kallickal phba->params.num_cq_entries = 5827da50879SJayamohan Kallickal (((BE2_CMDS_PER_CXN * 2 + phba->fw_config.iscsi_cid_count * 2 5837da50879SJayamohan Kallickal + BE2_TMFS) / 512) + 1) * 512; 5846733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn = 256; 5856733b39aSJayamohan Kallickal } 5866733b39aSJayamohan Kallickal 5876733b39aSJayamohan Kallickal static void hwi_ring_eq_db(struct beiscsi_hba *phba, 5886733b39aSJayamohan Kallickal unsigned int id, unsigned int clr_interrupt, 5896733b39aSJayamohan Kallickal unsigned int num_processed, 5906733b39aSJayamohan Kallickal unsigned char rearm, unsigned char event) 5916733b39aSJayamohan Kallickal { 5926733b39aSJayamohan Kallickal u32 val = 0; 5936733b39aSJayamohan Kallickal val |= id & DB_EQ_RING_ID_MASK; 5946733b39aSJayamohan Kallickal if (rearm) 5956733b39aSJayamohan Kallickal val |= 1 << DB_EQ_REARM_SHIFT; 5966733b39aSJayamohan Kallickal if (clr_interrupt) 5976733b39aSJayamohan Kallickal val |= 1 << DB_EQ_CLR_SHIFT; 5986733b39aSJayamohan Kallickal if (event) 5996733b39aSJayamohan Kallickal val |= 1 << DB_EQ_EVNT_SHIFT; 6006733b39aSJayamohan Kallickal val |= num_processed << DB_EQ_NUM_POPPED_SHIFT; 6016733b39aSJayamohan Kallickal iowrite32(val, phba->db_va + DB_EQ_OFFSET); 6026733b39aSJayamohan Kallickal } 6036733b39aSJayamohan Kallickal 6046733b39aSJayamohan Kallickal /** 605bfead3b2SJayamohan Kallickal * be_isr_mcc - The isr routine of the driver. 606bfead3b2SJayamohan Kallickal * @irq: Not used 607bfead3b2SJayamohan Kallickal * @dev_id: Pointer to host adapter structure 608bfead3b2SJayamohan Kallickal */ 609bfead3b2SJayamohan Kallickal static irqreturn_t be_isr_mcc(int irq, void *dev_id) 610bfead3b2SJayamohan Kallickal { 611bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 612bfead3b2SJayamohan Kallickal struct be_eq_entry *eqe = NULL; 613bfead3b2SJayamohan Kallickal struct be_queue_info *eq; 614bfead3b2SJayamohan Kallickal struct be_queue_info *mcc; 615bfead3b2SJayamohan Kallickal unsigned int num_eq_processed; 616bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 617bfead3b2SJayamohan Kallickal unsigned long flags; 618bfead3b2SJayamohan Kallickal 619bfead3b2SJayamohan Kallickal pbe_eq = dev_id; 620bfead3b2SJayamohan Kallickal eq = &pbe_eq->q; 621bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 622bfead3b2SJayamohan Kallickal mcc = &phba->ctrl.mcc_obj.cq; 623bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 624bfead3b2SJayamohan Kallickal if (!eqe) 625bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "eqe is NULL\n"); 626bfead3b2SJayamohan Kallickal 627bfead3b2SJayamohan Kallickal num_eq_processed = 0; 628bfead3b2SJayamohan Kallickal 629bfead3b2SJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 630bfead3b2SJayamohan Kallickal & EQE_VALID_MASK) { 631bfead3b2SJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 632bfead3b2SJayamohan Kallickal resource_id) / 32] & 633bfead3b2SJayamohan Kallickal EQE_RESID_MASK) >> 16) == mcc->id) { 634bfead3b2SJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 635bfead3b2SJayamohan Kallickal phba->todo_mcc_cq = 1; 636bfead3b2SJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 637bfead3b2SJayamohan Kallickal } 638bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 639bfead3b2SJayamohan Kallickal queue_tail_inc(eq); 640bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 641bfead3b2SJayamohan Kallickal num_eq_processed++; 642bfead3b2SJayamohan Kallickal } 643bfead3b2SJayamohan Kallickal if (phba->todo_mcc_cq) 644bfead3b2SJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 645bfead3b2SJayamohan Kallickal if (num_eq_processed) 646bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 1, 1); 647bfead3b2SJayamohan Kallickal 648bfead3b2SJayamohan Kallickal return IRQ_HANDLED; 649bfead3b2SJayamohan Kallickal } 650bfead3b2SJayamohan Kallickal 651bfead3b2SJayamohan Kallickal /** 652bfead3b2SJayamohan Kallickal * be_isr_msix - The isr routine of the driver. 653bfead3b2SJayamohan Kallickal * @irq: Not used 654bfead3b2SJayamohan Kallickal * @dev_id: Pointer to host adapter structure 655bfead3b2SJayamohan Kallickal */ 656bfead3b2SJayamohan Kallickal static irqreturn_t be_isr_msix(int irq, void *dev_id) 657bfead3b2SJayamohan Kallickal { 658bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 659bfead3b2SJayamohan Kallickal struct be_eq_entry *eqe = NULL; 660bfead3b2SJayamohan Kallickal struct be_queue_info *eq; 661bfead3b2SJayamohan Kallickal struct be_queue_info *cq; 662bfead3b2SJayamohan Kallickal unsigned int num_eq_processed; 663bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 664bfead3b2SJayamohan Kallickal unsigned long flags; 665bfead3b2SJayamohan Kallickal 666bfead3b2SJayamohan Kallickal pbe_eq = dev_id; 667bfead3b2SJayamohan Kallickal eq = &pbe_eq->q; 668bfead3b2SJayamohan Kallickal cq = pbe_eq->cq; 669bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 670bfead3b2SJayamohan Kallickal if (!eqe) 671bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "eqe is NULL\n"); 672bfead3b2SJayamohan Kallickal 673bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 674bfead3b2SJayamohan Kallickal num_eq_processed = 0; 675bfead3b2SJayamohan Kallickal if (blk_iopoll_enabled) { 676bfead3b2SJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 677bfead3b2SJayamohan Kallickal & EQE_VALID_MASK) { 678bfead3b2SJayamohan Kallickal if (!blk_iopoll_sched_prep(&pbe_eq->iopoll)) 679bfead3b2SJayamohan Kallickal blk_iopoll_sched(&pbe_eq->iopoll); 680bfead3b2SJayamohan Kallickal 681bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 682bfead3b2SJayamohan Kallickal queue_tail_inc(eq); 683bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 684bfead3b2SJayamohan Kallickal num_eq_processed++; 685bfead3b2SJayamohan Kallickal } 686bfead3b2SJayamohan Kallickal if (num_eq_processed) 687bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 0, 1); 688bfead3b2SJayamohan Kallickal 689bfead3b2SJayamohan Kallickal return IRQ_HANDLED; 690bfead3b2SJayamohan Kallickal } else { 691bfead3b2SJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 692bfead3b2SJayamohan Kallickal & EQE_VALID_MASK) { 693bfead3b2SJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 694bfead3b2SJayamohan Kallickal phba->todo_cq = 1; 695bfead3b2SJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 696bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 697bfead3b2SJayamohan Kallickal queue_tail_inc(eq); 698bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 699bfead3b2SJayamohan Kallickal num_eq_processed++; 700bfead3b2SJayamohan Kallickal } 701bfead3b2SJayamohan Kallickal if (phba->todo_cq) 702bfead3b2SJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 703bfead3b2SJayamohan Kallickal 704bfead3b2SJayamohan Kallickal if (num_eq_processed) 705bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 1, 1); 706bfead3b2SJayamohan Kallickal 707bfead3b2SJayamohan Kallickal return IRQ_HANDLED; 708bfead3b2SJayamohan Kallickal } 709bfead3b2SJayamohan Kallickal } 710bfead3b2SJayamohan Kallickal 711bfead3b2SJayamohan Kallickal /** 7126733b39aSJayamohan Kallickal * be_isr - The isr routine of the driver. 7136733b39aSJayamohan Kallickal * @irq: Not used 7146733b39aSJayamohan Kallickal * @dev_id: Pointer to host adapter structure 7156733b39aSJayamohan Kallickal */ 7166733b39aSJayamohan Kallickal static irqreturn_t be_isr(int irq, void *dev_id) 7176733b39aSJayamohan Kallickal { 7186733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 7196733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 7206733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 7216733b39aSJayamohan Kallickal struct be_eq_entry *eqe = NULL; 7226733b39aSJayamohan Kallickal struct be_queue_info *eq; 7236733b39aSJayamohan Kallickal struct be_queue_info *cq; 724bfead3b2SJayamohan Kallickal struct be_queue_info *mcc; 7256733b39aSJayamohan Kallickal unsigned long flags, index; 726bfead3b2SJayamohan Kallickal unsigned int num_mcceq_processed, num_ioeq_processed; 7276733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl; 728bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 7296733b39aSJayamohan Kallickal int isr; 7306733b39aSJayamohan Kallickal 7316733b39aSJayamohan Kallickal phba = dev_id; 7326eab04a8SJustin P. Mattock ctrl = &phba->ctrl; 7336733b39aSJayamohan Kallickal isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET + 7346733b39aSJayamohan Kallickal (PCI_FUNC(ctrl->pdev->devfn) * CEV_ISR_SIZE)); 7356733b39aSJayamohan Kallickal if (!isr) 7366733b39aSJayamohan Kallickal return IRQ_NONE; 7376733b39aSJayamohan Kallickal 7386733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 7396733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 740bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[0]; 741bfead3b2SJayamohan Kallickal 742bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[0].q; 743bfead3b2SJayamohan Kallickal mcc = &phba->ctrl.mcc_obj.cq; 7446733b39aSJayamohan Kallickal index = 0; 7456733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 7466733b39aSJayamohan Kallickal if (!eqe) 7476733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "eqe is NULL\n"); 7486733b39aSJayamohan Kallickal 749bfead3b2SJayamohan Kallickal num_ioeq_processed = 0; 750bfead3b2SJayamohan Kallickal num_mcceq_processed = 0; 7516733b39aSJayamohan Kallickal if (blk_iopoll_enabled) { 7526733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 7536733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 754bfead3b2SJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 755bfead3b2SJayamohan Kallickal resource_id) / 32] & 756bfead3b2SJayamohan Kallickal EQE_RESID_MASK) >> 16) == mcc->id) { 757bfead3b2SJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 758bfead3b2SJayamohan Kallickal phba->todo_mcc_cq = 1; 759bfead3b2SJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 760bfead3b2SJayamohan Kallickal num_mcceq_processed++; 761bfead3b2SJayamohan Kallickal } else { 762bfead3b2SJayamohan Kallickal if (!blk_iopoll_sched_prep(&pbe_eq->iopoll)) 763bfead3b2SJayamohan Kallickal blk_iopoll_sched(&pbe_eq->iopoll); 764bfead3b2SJayamohan Kallickal num_ioeq_processed++; 765bfead3b2SJayamohan Kallickal } 7666733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 7676733b39aSJayamohan Kallickal queue_tail_inc(eq); 7686733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 7696733b39aSJayamohan Kallickal } 770bfead3b2SJayamohan Kallickal if (num_ioeq_processed || num_mcceq_processed) { 771bfead3b2SJayamohan Kallickal if (phba->todo_mcc_cq) 772bfead3b2SJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 773bfead3b2SJayamohan Kallickal 774bfead3b2SJayamohan Kallickal if ((num_mcceq_processed) && (!num_ioeq_processed)) 775bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 776bfead3b2SJayamohan Kallickal (num_ioeq_processed + 777bfead3b2SJayamohan Kallickal num_mcceq_processed) , 1, 1); 778bfead3b2SJayamohan Kallickal else 779bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 780bfead3b2SJayamohan Kallickal (num_ioeq_processed + 781bfead3b2SJayamohan Kallickal num_mcceq_processed), 0, 1); 782bfead3b2SJayamohan Kallickal 7836733b39aSJayamohan Kallickal return IRQ_HANDLED; 7846733b39aSJayamohan Kallickal } else 7856733b39aSJayamohan Kallickal return IRQ_NONE; 7866733b39aSJayamohan Kallickal } else { 787bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 7886733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 7896733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 7906733b39aSJayamohan Kallickal 7916733b39aSJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 7926733b39aSJayamohan Kallickal resource_id) / 32] & 7936733b39aSJayamohan Kallickal EQE_RESID_MASK) >> 16) != cq->id) { 7946733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 7956733b39aSJayamohan Kallickal phba->todo_mcc_cq = 1; 7966733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 7976733b39aSJayamohan Kallickal } else { 7986733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 7996733b39aSJayamohan Kallickal phba->todo_cq = 1; 8006733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 8016733b39aSJayamohan Kallickal } 8026733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 8036733b39aSJayamohan Kallickal queue_tail_inc(eq); 8046733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 805bfead3b2SJayamohan Kallickal num_ioeq_processed++; 8066733b39aSJayamohan Kallickal } 8076733b39aSJayamohan Kallickal if (phba->todo_cq || phba->todo_mcc_cq) 8086733b39aSJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 8096733b39aSJayamohan Kallickal 810bfead3b2SJayamohan Kallickal if (num_ioeq_processed) { 811bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 812bfead3b2SJayamohan Kallickal num_ioeq_processed, 1, 1); 8136733b39aSJayamohan Kallickal return IRQ_HANDLED; 8146733b39aSJayamohan Kallickal } else 8156733b39aSJayamohan Kallickal return IRQ_NONE; 8166733b39aSJayamohan Kallickal } 8176733b39aSJayamohan Kallickal } 8186733b39aSJayamohan Kallickal 8196733b39aSJayamohan Kallickal static int beiscsi_init_irqs(struct beiscsi_hba *phba) 8206733b39aSJayamohan Kallickal { 8216733b39aSJayamohan Kallickal struct pci_dev *pcidev = phba->pcidev; 822bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 823bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 8244f5af07eSJayamohan Kallickal int ret, msix_vec, i, j; 8256733b39aSJayamohan Kallickal 826bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 827bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 828bfead3b2SJayamohan Kallickal 829bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 830bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 8318fcfb210SJayamohan Kallickal phba->msi_name[i] = kzalloc(BEISCSI_MSI_NAME, 8328fcfb210SJayamohan Kallickal GFP_KERNEL); 8338fcfb210SJayamohan Kallickal if (!phba->msi_name[i]) { 8348fcfb210SJayamohan Kallickal ret = -ENOMEM; 8358fcfb210SJayamohan Kallickal goto free_msix_irqs; 8368fcfb210SJayamohan Kallickal } 8378fcfb210SJayamohan Kallickal 8388fcfb210SJayamohan Kallickal sprintf(phba->msi_name[i], "beiscsi_%02x_%02x", 8398fcfb210SJayamohan Kallickal phba->shost->host_no, i); 840bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 8418fcfb210SJayamohan Kallickal ret = request_irq(msix_vec, be_isr_msix, 0, 8428fcfb210SJayamohan Kallickal phba->msi_name[i], 843bfead3b2SJayamohan Kallickal &phwi_context->be_eq[i]); 8444f5af07eSJayamohan Kallickal if (ret) { 8454f5af07eSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 8464f5af07eSJayamohan Kallickal "beiscsi_init_irqs-Failed to" 8474f5af07eSJayamohan Kallickal "register msix for i = %d\n", i); 8488fcfb210SJayamohan Kallickal kfree(phba->msi_name[i]); 8494f5af07eSJayamohan Kallickal goto free_msix_irqs; 8504f5af07eSJayamohan Kallickal } 851bfead3b2SJayamohan Kallickal } 8528fcfb210SJayamohan Kallickal phba->msi_name[i] = kzalloc(BEISCSI_MSI_NAME, GFP_KERNEL); 8538fcfb210SJayamohan Kallickal if (!phba->msi_name[i]) { 8548fcfb210SJayamohan Kallickal ret = -ENOMEM; 8558fcfb210SJayamohan Kallickal goto free_msix_irqs; 8568fcfb210SJayamohan Kallickal } 8578fcfb210SJayamohan Kallickal sprintf(phba->msi_name[i], "beiscsi_mcc_%02x", 8588fcfb210SJayamohan Kallickal phba->shost->host_no); 859bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 8608fcfb210SJayamohan Kallickal ret = request_irq(msix_vec, be_isr_mcc, 0, phba->msi_name[i], 861bfead3b2SJayamohan Kallickal &phwi_context->be_eq[i]); 8624f5af07eSJayamohan Kallickal if (ret) { 8634f5af07eSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_init_irqs-" 8644f5af07eSJayamohan Kallickal "Failed to register beiscsi_msix_mcc\n"); 8658fcfb210SJayamohan Kallickal kfree(phba->msi_name[i]); 8664f5af07eSJayamohan Kallickal goto free_msix_irqs; 8674f5af07eSJayamohan Kallickal } 8684f5af07eSJayamohan Kallickal 869bfead3b2SJayamohan Kallickal } else { 870bfead3b2SJayamohan Kallickal ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED, 871bfead3b2SJayamohan Kallickal "beiscsi", phba); 8726733b39aSJayamohan Kallickal if (ret) { 8736733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_init_irqs-" 8746733b39aSJayamohan Kallickal "Failed to register irq\\n"); 8756733b39aSJayamohan Kallickal return ret; 8766733b39aSJayamohan Kallickal } 877bfead3b2SJayamohan Kallickal } 8786733b39aSJayamohan Kallickal return 0; 8794f5af07eSJayamohan Kallickal free_msix_irqs: 8808fcfb210SJayamohan Kallickal for (j = i - 1; j >= 0; j--) { 8818fcfb210SJayamohan Kallickal kfree(phba->msi_name[j]); 8828fcfb210SJayamohan Kallickal msix_vec = phba->msix_entries[j].vector; 8834f5af07eSJayamohan Kallickal free_irq(msix_vec, &phwi_context->be_eq[j]); 8848fcfb210SJayamohan Kallickal } 8854f5af07eSJayamohan Kallickal return ret; 8866733b39aSJayamohan Kallickal } 8876733b39aSJayamohan Kallickal 8886733b39aSJayamohan Kallickal static void hwi_ring_cq_db(struct beiscsi_hba *phba, 8896733b39aSJayamohan Kallickal unsigned int id, unsigned int num_processed, 8906733b39aSJayamohan Kallickal unsigned char rearm, unsigned char event) 8916733b39aSJayamohan Kallickal { 8926733b39aSJayamohan Kallickal u32 val = 0; 8936733b39aSJayamohan Kallickal val |= id & DB_CQ_RING_ID_MASK; 8946733b39aSJayamohan Kallickal if (rearm) 8956733b39aSJayamohan Kallickal val |= 1 << DB_CQ_REARM_SHIFT; 8966733b39aSJayamohan Kallickal val |= num_processed << DB_CQ_NUM_POPPED_SHIFT; 8976733b39aSJayamohan Kallickal iowrite32(val, phba->db_va + DB_CQ_OFFSET); 8986733b39aSJayamohan Kallickal } 8996733b39aSJayamohan Kallickal 9006733b39aSJayamohan Kallickal static unsigned int 9016733b39aSJayamohan Kallickal beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn, 9026733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 9036733b39aSJayamohan Kallickal unsigned short cid, 9046733b39aSJayamohan Kallickal struct pdu_base *ppdu, 9056733b39aSJayamohan Kallickal unsigned long pdu_len, 9066733b39aSJayamohan Kallickal void *pbuffer, unsigned long buf_len) 9076733b39aSJayamohan Kallickal { 9086733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 9096733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 910bfead3b2SJayamohan Kallickal struct iscsi_task *task; 911bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task; 912bfead3b2SJayamohan Kallickal struct iscsi_hdr *login_hdr; 9136733b39aSJayamohan Kallickal 9146733b39aSJayamohan Kallickal switch (ppdu->dw[offsetof(struct amap_pdu_base, opcode) / 32] & 9156733b39aSJayamohan Kallickal PDUBASE_OPCODE_MASK) { 9166733b39aSJayamohan Kallickal case ISCSI_OP_NOOP_IN: 9176733b39aSJayamohan Kallickal pbuffer = NULL; 9186733b39aSJayamohan Kallickal buf_len = 0; 9196733b39aSJayamohan Kallickal break; 9206733b39aSJayamohan Kallickal case ISCSI_OP_ASYNC_EVENT: 9216733b39aSJayamohan Kallickal break; 9226733b39aSJayamohan Kallickal case ISCSI_OP_REJECT: 9236733b39aSJayamohan Kallickal WARN_ON(!pbuffer); 9246733b39aSJayamohan Kallickal WARN_ON(!(buf_len == 48)); 9256733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "In ISCSI_OP_REJECT\n"); 9266733b39aSJayamohan Kallickal break; 9276733b39aSJayamohan Kallickal case ISCSI_OP_LOGIN_RSP: 9287bd6e25cSJayamohan Kallickal case ISCSI_OP_TEXT_RSP: 929bfead3b2SJayamohan Kallickal task = conn->login_task; 930bfead3b2SJayamohan Kallickal io_task = task->dd_data; 931bfead3b2SJayamohan Kallickal login_hdr = (struct iscsi_hdr *)ppdu; 932bfead3b2SJayamohan Kallickal login_hdr->itt = io_task->libiscsi_itt; 9336733b39aSJayamohan Kallickal break; 9346733b39aSJayamohan Kallickal default: 9356733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 9366733b39aSJayamohan Kallickal "Unrecognized opcode 0x%x in async msg\n", 9376733b39aSJayamohan Kallickal (ppdu-> 9386733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_base, opcode) / 32] 9396733b39aSJayamohan Kallickal & PDUBASE_OPCODE_MASK)); 9406733b39aSJayamohan Kallickal return 1; 9416733b39aSJayamohan Kallickal } 9426733b39aSJayamohan Kallickal 9436733b39aSJayamohan Kallickal spin_lock_bh(&session->lock); 9446733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)ppdu, pbuffer, buf_len); 9456733b39aSJayamohan Kallickal spin_unlock_bh(&session->lock); 9466733b39aSJayamohan Kallickal return 0; 9476733b39aSJayamohan Kallickal } 9486733b39aSJayamohan Kallickal 9496733b39aSJayamohan Kallickal static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba) 9506733b39aSJayamohan Kallickal { 9516733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 9526733b39aSJayamohan Kallickal 9536733b39aSJayamohan Kallickal if (phba->io_sgl_hndl_avbl) { 9546733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 9556733b39aSJayamohan Kallickal "In alloc_io_sgl_handle,io_sgl_alloc_index=%d\n", 9566733b39aSJayamohan Kallickal phba->io_sgl_alloc_index); 9576733b39aSJayamohan Kallickal psgl_handle = phba->io_sgl_hndl_base[phba-> 9586733b39aSJayamohan Kallickal io_sgl_alloc_index]; 9596733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_alloc_index] = NULL; 9606733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl--; 961bfead3b2SJayamohan Kallickal if (phba->io_sgl_alloc_index == (phba->params. 962bfead3b2SJayamohan Kallickal ios_per_ctrl - 1)) 9636733b39aSJayamohan Kallickal phba->io_sgl_alloc_index = 0; 9646733b39aSJayamohan Kallickal else 9656733b39aSJayamohan Kallickal phba->io_sgl_alloc_index++; 9666733b39aSJayamohan Kallickal } else 9676733b39aSJayamohan Kallickal psgl_handle = NULL; 9686733b39aSJayamohan Kallickal return psgl_handle; 9696733b39aSJayamohan Kallickal } 9706733b39aSJayamohan Kallickal 9716733b39aSJayamohan Kallickal static void 9726733b39aSJayamohan Kallickal free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) 9736733b39aSJayamohan Kallickal { 9746733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "In free_,io_sgl_free_index=%d\n", 9756733b39aSJayamohan Kallickal phba->io_sgl_free_index); 9766733b39aSJayamohan Kallickal if (phba->io_sgl_hndl_base[phba->io_sgl_free_index]) { 9776733b39aSJayamohan Kallickal /* 9786733b39aSJayamohan Kallickal * this can happen if clean_task is called on a task that 9796733b39aSJayamohan Kallickal * failed in xmit_task or alloc_pdu. 9806733b39aSJayamohan Kallickal */ 9816733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 9826733b39aSJayamohan Kallickal "Double Free in IO SGL io_sgl_free_index=%d," 9836733b39aSJayamohan Kallickal "value there=%p\n", phba->io_sgl_free_index, 9846733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_free_index]); 9856733b39aSJayamohan Kallickal return; 9866733b39aSJayamohan Kallickal } 9876733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle; 9886733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl++; 9896733b39aSJayamohan Kallickal if (phba->io_sgl_free_index == (phba->params.ios_per_ctrl - 1)) 9906733b39aSJayamohan Kallickal phba->io_sgl_free_index = 0; 9916733b39aSJayamohan Kallickal else 9926733b39aSJayamohan Kallickal phba->io_sgl_free_index++; 9936733b39aSJayamohan Kallickal } 9946733b39aSJayamohan Kallickal 9956733b39aSJayamohan Kallickal /** 9966733b39aSJayamohan Kallickal * alloc_wrb_handle - To allocate a wrb handle 9976733b39aSJayamohan Kallickal * @phba: The hba pointer 9986733b39aSJayamohan Kallickal * @cid: The cid to use for allocation 9996733b39aSJayamohan Kallickal * 10006733b39aSJayamohan Kallickal * This happens under session_lock until submission to chip 10016733b39aSJayamohan Kallickal */ 1002d5431488SJayamohan Kallickal struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid) 10036733b39aSJayamohan Kallickal { 10046733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 10056733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 1006d5431488SJayamohan Kallickal struct wrb_handle *pwrb_handle, *pwrb_handle_tmp; 10076733b39aSJayamohan Kallickal 10086733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 10096733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cid]; 1010d5431488SJayamohan Kallickal if (pwrb_context->wrb_handles_available >= 2) { 1011bfead3b2SJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[ 1012bfead3b2SJayamohan Kallickal pwrb_context->alloc_index]; 1013bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available--; 1014bfead3b2SJayamohan Kallickal if (pwrb_context->alloc_index == 1015bfead3b2SJayamohan Kallickal (phba->params.wrbs_per_cxn - 1)) 1016bfead3b2SJayamohan Kallickal pwrb_context->alloc_index = 0; 1017bfead3b2SJayamohan Kallickal else 1018bfead3b2SJayamohan Kallickal pwrb_context->alloc_index++; 1019d5431488SJayamohan Kallickal pwrb_handle_tmp = pwrb_context->pwrb_handle_base[ 1020d5431488SJayamohan Kallickal pwrb_context->alloc_index]; 1021d5431488SJayamohan Kallickal pwrb_handle->nxt_wrb_index = pwrb_handle_tmp->wrb_index; 1022bfead3b2SJayamohan Kallickal } else 1023bfead3b2SJayamohan Kallickal pwrb_handle = NULL; 10246733b39aSJayamohan Kallickal return pwrb_handle; 10256733b39aSJayamohan Kallickal } 10266733b39aSJayamohan Kallickal 10276733b39aSJayamohan Kallickal /** 10286733b39aSJayamohan Kallickal * free_wrb_handle - To free the wrb handle back to pool 10296733b39aSJayamohan Kallickal * @phba: The hba pointer 10306733b39aSJayamohan Kallickal * @pwrb_context: The context to free from 10316733b39aSJayamohan Kallickal * @pwrb_handle: The wrb_handle to free 10326733b39aSJayamohan Kallickal * 10336733b39aSJayamohan Kallickal * This happens under session_lock until submission to chip 10346733b39aSJayamohan Kallickal */ 10356733b39aSJayamohan Kallickal static void 10366733b39aSJayamohan Kallickal free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context, 10376733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle) 10386733b39aSJayamohan Kallickal { 103932951dd8SJayamohan Kallickal pwrb_context->pwrb_handle_base[pwrb_context->free_index] = pwrb_handle; 1040bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available++; 1041bfead3b2SJayamohan Kallickal if (pwrb_context->free_index == (phba->params.wrbs_per_cxn - 1)) 1042bfead3b2SJayamohan Kallickal pwrb_context->free_index = 0; 1043bfead3b2SJayamohan Kallickal else 1044bfead3b2SJayamohan Kallickal pwrb_context->free_index++; 1045bfead3b2SJayamohan Kallickal 10466733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 1047bfead3b2SJayamohan Kallickal "FREE WRB: pwrb_handle=%p free_index=0x%x" 10486733b39aSJayamohan Kallickal "wrb_handles_available=%d\n", 10496733b39aSJayamohan Kallickal pwrb_handle, pwrb_context->free_index, 1050bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available); 10516733b39aSJayamohan Kallickal } 10526733b39aSJayamohan Kallickal 10536733b39aSJayamohan Kallickal static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba) 10546733b39aSJayamohan Kallickal { 10556733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 10566733b39aSJayamohan Kallickal 10576733b39aSJayamohan Kallickal if (phba->eh_sgl_hndl_avbl) { 10586733b39aSJayamohan Kallickal psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index]; 10596733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL; 10606733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "mgmt_sgl_alloc_index=%d=0x%x\n", 10616733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index, phba->eh_sgl_alloc_index); 10626733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl--; 10636733b39aSJayamohan Kallickal if (phba->eh_sgl_alloc_index == 10646733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 10656733b39aSJayamohan Kallickal 1)) 10666733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index = 0; 10676733b39aSJayamohan Kallickal else 10686733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index++; 10696733b39aSJayamohan Kallickal } else 10706733b39aSJayamohan Kallickal psgl_handle = NULL; 10716733b39aSJayamohan Kallickal return psgl_handle; 10726733b39aSJayamohan Kallickal } 10736733b39aSJayamohan Kallickal 10746733b39aSJayamohan Kallickal void 10756733b39aSJayamohan Kallickal free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) 10766733b39aSJayamohan Kallickal { 10776733b39aSJayamohan Kallickal 1078bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "In free_mgmt_sgl_handle,eh_sgl_free_index=%d\n", 1079bfead3b2SJayamohan Kallickal phba->eh_sgl_free_index); 10806733b39aSJayamohan Kallickal if (phba->eh_sgl_hndl_base[phba->eh_sgl_free_index]) { 10816733b39aSJayamohan Kallickal /* 10826733b39aSJayamohan Kallickal * this can happen if clean_task is called on a task that 10836733b39aSJayamohan Kallickal * failed in xmit_task or alloc_pdu. 10846733b39aSJayamohan Kallickal */ 10856733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 10866733b39aSJayamohan Kallickal "Double Free in eh SGL ,eh_sgl_free_index=%d\n", 10876733b39aSJayamohan Kallickal phba->eh_sgl_free_index); 10886733b39aSJayamohan Kallickal return; 10896733b39aSJayamohan Kallickal } 10906733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle; 10916733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl++; 10926733b39aSJayamohan Kallickal if (phba->eh_sgl_free_index == 10936733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 1)) 10946733b39aSJayamohan Kallickal phba->eh_sgl_free_index = 0; 10956733b39aSJayamohan Kallickal else 10966733b39aSJayamohan Kallickal phba->eh_sgl_free_index++; 10976733b39aSJayamohan Kallickal } 10986733b39aSJayamohan Kallickal 10996733b39aSJayamohan Kallickal static void 11006733b39aSJayamohan Kallickal be_complete_io(struct beiscsi_conn *beiscsi_conn, 11016733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 11026733b39aSJayamohan Kallickal { 11036733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 11046733b39aSJayamohan Kallickal struct be_status_bhs *sts_bhs = 11056733b39aSJayamohan Kallickal (struct be_status_bhs *)io_task->cmd_bhs; 11066733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 11076733b39aSJayamohan Kallickal unsigned int sense_len; 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; 11266733b39aSJayamohan Kallickal 11276733b39aSJayamohan Kallickal task->sc->result = (DID_OK << 16) | status; 11286733b39aSJayamohan Kallickal if (rsp != ISCSI_STATUS_CMD_COMPLETED) { 11296733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 11306733b39aSJayamohan Kallickal goto unmap; 11316733b39aSJayamohan Kallickal } 11326733b39aSJayamohan Kallickal 11336733b39aSJayamohan Kallickal /* bidi not initially supported */ 11346733b39aSJayamohan Kallickal if (flags & (ISCSI_FLAG_CMD_UNDERFLOW | ISCSI_FLAG_CMD_OVERFLOW)) { 11356733b39aSJayamohan Kallickal resid = (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 11366733b39aSJayamohan Kallickal 32] & SOL_RES_CNT_MASK); 11376733b39aSJayamohan Kallickal 11386733b39aSJayamohan Kallickal if (!status && (flags & ISCSI_FLAG_CMD_OVERFLOW)) 11396733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 11406733b39aSJayamohan Kallickal 11416733b39aSJayamohan Kallickal if (flags & ISCSI_FLAG_CMD_UNDERFLOW) { 11426733b39aSJayamohan Kallickal scsi_set_resid(task->sc, resid); 11436733b39aSJayamohan Kallickal if (!status && (scsi_bufflen(task->sc) - resid < 11446733b39aSJayamohan Kallickal task->sc->underflow)) 11456733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 11466733b39aSJayamohan Kallickal } 11476733b39aSJayamohan Kallickal } 11486733b39aSJayamohan Kallickal 11496733b39aSJayamohan Kallickal if (status == SAM_STAT_CHECK_CONDITION) { 1150bfead3b2SJayamohan Kallickal unsigned short *slen = (unsigned short *)sts_bhs->sense_info; 11516733b39aSJayamohan Kallickal sense = sts_bhs->sense_info + sizeof(unsigned short); 1152bfead3b2SJayamohan Kallickal sense_len = cpu_to_be16(*slen); 11536733b39aSJayamohan Kallickal memcpy(task->sc->sense_buffer, sense, 11546733b39aSJayamohan Kallickal min_t(u16, sense_len, SCSI_SENSE_BUFFERSIZE)); 11556733b39aSJayamohan Kallickal } 1156756d29c8SJayamohan Kallickal 11576733b39aSJayamohan Kallickal if (io_task->cmd_bhs->iscsi_hdr.flags & ISCSI_FLAG_CMD_READ) { 11586733b39aSJayamohan Kallickal if (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32] 11596733b39aSJayamohan Kallickal & SOL_RES_CNT_MASK) 11606733b39aSJayamohan Kallickal conn->rxdata_octets += (psol-> 11616733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32] 11626733b39aSJayamohan Kallickal & SOL_RES_CNT_MASK); 11636733b39aSJayamohan Kallickal } 11646733b39aSJayamohan Kallickal unmap: 11656733b39aSJayamohan Kallickal scsi_dma_unmap(io_task->scsi_cmnd); 11666733b39aSJayamohan Kallickal iscsi_complete_scsi_task(task, exp_cmdsn, max_cmdsn); 11676733b39aSJayamohan Kallickal } 11686733b39aSJayamohan Kallickal 11696733b39aSJayamohan Kallickal static void 11706733b39aSJayamohan Kallickal be_complete_logout(struct beiscsi_conn *beiscsi_conn, 11716733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 11726733b39aSJayamohan Kallickal { 11736733b39aSJayamohan Kallickal struct iscsi_logout_rsp *hdr; 1174bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 11756733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 11766733b39aSJayamohan Kallickal 11776733b39aSJayamohan Kallickal hdr = (struct iscsi_logout_rsp *)task->hdr; 11787bd6e25cSJayamohan Kallickal hdr->opcode = ISCSI_OP_LOGOUT_RSP; 11796733b39aSJayamohan Kallickal hdr->t2wait = 5; 11806733b39aSJayamohan Kallickal hdr->t2retain = 0; 11816733b39aSJayamohan Kallickal hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 11826733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 11836733b39aSJayamohan Kallickal hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 11846733b39aSJayamohan Kallickal 32] & SOL_RESP_MASK); 11856733b39aSJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(psol-> 11866733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 11876733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK); 11886733b39aSJayamohan Kallickal hdr->max_cmdsn = be32_to_cpu((psol-> 11896733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 11906733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK) + 11916733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 11926733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 11937bd6e25cSJayamohan Kallickal hdr->dlength[0] = 0; 11947bd6e25cSJayamohan Kallickal hdr->dlength[1] = 0; 11957bd6e25cSJayamohan Kallickal hdr->dlength[2] = 0; 11966733b39aSJayamohan Kallickal hdr->hlength = 0; 1197bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 11986733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 11996733b39aSJayamohan Kallickal } 12006733b39aSJayamohan Kallickal 12016733b39aSJayamohan Kallickal static void 12026733b39aSJayamohan Kallickal be_complete_tmf(struct beiscsi_conn *beiscsi_conn, 12036733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 12046733b39aSJayamohan Kallickal { 12056733b39aSJayamohan Kallickal struct iscsi_tm_rsp *hdr; 12066733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 1207bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 12086733b39aSJayamohan Kallickal 12096733b39aSJayamohan Kallickal hdr = (struct iscsi_tm_rsp *)task->hdr; 12107bd6e25cSJayamohan Kallickal hdr->opcode = ISCSI_OP_SCSI_TMFUNC_RSP; 12116733b39aSJayamohan Kallickal hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 12126733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 12136733b39aSJayamohan Kallickal hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 12146733b39aSJayamohan Kallickal 32] & SOL_RESP_MASK); 12156733b39aSJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe, 12166733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK); 12176733b39aSJayamohan Kallickal hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe, 12186733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) + 12196733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 12206733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 1221bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 12226733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 12236733b39aSJayamohan Kallickal } 12246733b39aSJayamohan Kallickal 12256733b39aSJayamohan Kallickal static void 12266733b39aSJayamohan Kallickal hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn, 12276733b39aSJayamohan Kallickal struct beiscsi_hba *phba, struct sol_cqe *psol) 12286733b39aSJayamohan Kallickal { 12296733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 1230bfead3b2SJayamohan Kallickal struct wrb_handle *pwrb_handle = NULL; 12316733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 1232bfead3b2SJayamohan Kallickal struct iscsi_task *task; 1233bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task; 12346733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 12356733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 12366733b39aSJayamohan Kallickal 12376733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 12386733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[((psol-> 12396733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, cid) / 32] & 12407da50879SJayamohan Kallickal SOL_CID_MASK) >> 6) - 12417da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 12426733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol-> 12436733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, wrb_index) / 12446733b39aSJayamohan Kallickal 32] & SOL_WRB_INDEX_MASK) >> 16)]; 1245bfead3b2SJayamohan Kallickal task = pwrb_handle->pio_handle; 124635e66019SJayamohan Kallickal 1247bfead3b2SJayamohan Kallickal io_task = task->dd_data; 1248bfead3b2SJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 1249bfead3b2SJayamohan Kallickal free_mgmt_sgl_handle(phba, io_task->psgl_handle); 1250bfead3b2SJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 12516733b39aSJayamohan Kallickal spin_lock_bh(&session->lock); 12526733b39aSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, pwrb_handle); 12536733b39aSJayamohan Kallickal spin_unlock_bh(&session->lock); 12546733b39aSJayamohan Kallickal } 12556733b39aSJayamohan Kallickal 12566733b39aSJayamohan Kallickal static void 12576733b39aSJayamohan Kallickal be_complete_nopin_resp(struct beiscsi_conn *beiscsi_conn, 12586733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 12596733b39aSJayamohan Kallickal { 12606733b39aSJayamohan Kallickal struct iscsi_nopin *hdr; 12616733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 1262bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 12636733b39aSJayamohan Kallickal 12646733b39aSJayamohan Kallickal hdr = (struct iscsi_nopin *)task->hdr; 12656733b39aSJayamohan Kallickal hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 12666733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 12676733b39aSJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe, 12686733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK); 12696733b39aSJayamohan Kallickal hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe, 12706733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) + 12716733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 12726733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 12736733b39aSJayamohan Kallickal hdr->opcode = ISCSI_OP_NOOP_IN; 1274bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 12756733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 12766733b39aSJayamohan Kallickal } 12776733b39aSJayamohan Kallickal 12786733b39aSJayamohan Kallickal static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn, 12796733b39aSJayamohan Kallickal struct beiscsi_hba *phba, struct sol_cqe *psol) 12806733b39aSJayamohan Kallickal { 12816733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 12826733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 12836733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 12846733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 12856733b39aSJayamohan Kallickal struct iscsi_task *task; 1286bfead3b2SJayamohan Kallickal unsigned int type; 12876733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 12886733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 12896733b39aSJayamohan Kallickal 12906733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 129132951dd8SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[((psol->dw[offsetof 1292bfead3b2SJayamohan Kallickal (struct amap_sol_cqe, cid) / 32] 12937da50879SJayamohan Kallickal & SOL_CID_MASK) >> 6) - 12947da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 12956733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol-> 12966733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, wrb_index) / 12976733b39aSJayamohan Kallickal 32] & SOL_WRB_INDEX_MASK) >> 16)]; 12986733b39aSJayamohan Kallickal task = pwrb_handle->pio_handle; 12996733b39aSJayamohan Kallickal pwrb = pwrb_handle->pwrb; 1300bfead3b2SJayamohan Kallickal type = (pwrb->dw[offsetof(struct amap_iscsi_wrb, type) / 32] & 1301bfead3b2SJayamohan Kallickal WRB_TYPE_MASK) >> 28; 130232951dd8SJayamohan Kallickal 1303bfead3b2SJayamohan Kallickal spin_lock_bh(&session->lock); 1304bfead3b2SJayamohan Kallickal switch (type) { 13056733b39aSJayamohan Kallickal case HWH_TYPE_IO: 13066733b39aSJayamohan Kallickal case HWH_TYPE_IO_RD: 13076733b39aSJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == 1308dafab8e0SJayamohan Kallickal ISCSI_OP_NOOP_OUT) 13096733b39aSJayamohan Kallickal be_complete_nopin_resp(beiscsi_conn, task, psol); 1310dafab8e0SJayamohan Kallickal else 13116733b39aSJayamohan Kallickal be_complete_io(beiscsi_conn, task, psol); 13126733b39aSJayamohan Kallickal break; 13136733b39aSJayamohan Kallickal 13146733b39aSJayamohan Kallickal case HWH_TYPE_LOGOUT: 1315dafab8e0SJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT) 13166733b39aSJayamohan Kallickal be_complete_logout(beiscsi_conn, task, psol); 1317dafab8e0SJayamohan Kallickal else 1318dafab8e0SJayamohan Kallickal be_complete_tmf(beiscsi_conn, task, psol); 1319dafab8e0SJayamohan Kallickal 13206733b39aSJayamohan Kallickal break; 13216733b39aSJayamohan Kallickal 13226733b39aSJayamohan Kallickal case HWH_TYPE_LOGIN: 13236733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 13246733b39aSJayamohan Kallickal "\t\t No HWH_TYPE_LOGIN Expected in hwi_complete_cmd" 13256733b39aSJayamohan Kallickal "- Solicited path\n"); 13266733b39aSJayamohan Kallickal break; 13276733b39aSJayamohan Kallickal 13286733b39aSJayamohan Kallickal case HWH_TYPE_NOP: 13296733b39aSJayamohan Kallickal be_complete_nopin_resp(beiscsi_conn, task, psol); 13306733b39aSJayamohan Kallickal break; 13316733b39aSJayamohan Kallickal 13326733b39aSJayamohan Kallickal default: 13336733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 1334bfead3b2SJayamohan Kallickal "In hwi_complete_cmd, unknown type = %d" 1335bfead3b2SJayamohan Kallickal "wrb_index 0x%x CID 0x%x\n", type, 1336bfead3b2SJayamohan Kallickal ((psol->dw[offsetof(struct amap_iscsi_wrb, 1337bfead3b2SJayamohan Kallickal type) / 32] & SOL_WRB_INDEX_MASK) >> 16), 1338bfead3b2SJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, 1339bfead3b2SJayamohan Kallickal cid) / 32] & SOL_CID_MASK) >> 6)); 13406733b39aSJayamohan Kallickal break; 13416733b39aSJayamohan Kallickal } 134235e66019SJayamohan Kallickal 13436733b39aSJayamohan Kallickal spin_unlock_bh(&session->lock); 13446733b39aSJayamohan Kallickal } 13456733b39aSJayamohan Kallickal 13466733b39aSJayamohan Kallickal static struct list_head *hwi_get_async_busy_list(struct hwi_async_pdu_context 13476733b39aSJayamohan Kallickal *pasync_ctx, unsigned int is_header, 13486733b39aSJayamohan Kallickal unsigned int host_write_ptr) 13496733b39aSJayamohan Kallickal { 13506733b39aSJayamohan Kallickal if (is_header) 13516733b39aSJayamohan Kallickal return &pasync_ctx->async_entry[host_write_ptr]. 13526733b39aSJayamohan Kallickal header_busy_list; 13536733b39aSJayamohan Kallickal else 13546733b39aSJayamohan Kallickal return &pasync_ctx->async_entry[host_write_ptr].data_busy_list; 13556733b39aSJayamohan Kallickal } 13566733b39aSJayamohan Kallickal 13576733b39aSJayamohan Kallickal static struct async_pdu_handle * 13586733b39aSJayamohan Kallickal hwi_get_async_handle(struct beiscsi_hba *phba, 13596733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn, 13606733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, 13616733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe, unsigned int *pcq_index) 13626733b39aSJayamohan Kallickal { 13636733b39aSJayamohan Kallickal struct be_bus_address phys_addr; 13646733b39aSJayamohan Kallickal struct list_head *pbusy_list; 13656733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 13666733b39aSJayamohan Kallickal int buffer_len = 0; 13676733b39aSJayamohan Kallickal unsigned char buffer_index = -1; 13686733b39aSJayamohan Kallickal unsigned char is_header = 0; 13696733b39aSJayamohan Kallickal 13706733b39aSJayamohan Kallickal phys_addr.u.a32.address_lo = 13716733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_lo) / 32] - 13726733b39aSJayamohan Kallickal ((pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32] 13736733b39aSJayamohan Kallickal & PDUCQE_DPL_MASK) >> 16); 13746733b39aSJayamohan Kallickal phys_addr.u.a32.address_hi = 13756733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_hi) / 32]; 13766733b39aSJayamohan Kallickal 13776733b39aSJayamohan Kallickal phys_addr.u.a64.address = 13786733b39aSJayamohan Kallickal *((unsigned long long *)(&phys_addr.u.a64.address)); 13796733b39aSJayamohan Kallickal 13806733b39aSJayamohan Kallickal switch (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, code) / 32] 13816733b39aSJayamohan Kallickal & PDUCQE_CODE_MASK) { 13826733b39aSJayamohan Kallickal case UNSOL_HDR_NOTIFY: 13836733b39aSJayamohan Kallickal is_header = 1; 13846733b39aSJayamohan Kallickal 13856733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, 1, 13866733b39aSJayamohan Kallickal (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 13876733b39aSJayamohan Kallickal index) / 32] & PDUCQE_INDEX_MASK)); 13886733b39aSJayamohan Kallickal 13896733b39aSJayamohan Kallickal buffer_len = (unsigned int)(phys_addr.u.a64.address - 13906733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address); 13916733b39aSJayamohan Kallickal 13926733b39aSJayamohan Kallickal buffer_index = buffer_len / 13936733b39aSJayamohan Kallickal pasync_ctx->async_header.buffer_size; 13946733b39aSJayamohan Kallickal 13956733b39aSJayamohan Kallickal break; 13966733b39aSJayamohan Kallickal case UNSOL_DATA_NOTIFY: 13976733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, 0, (pdpdu_cqe-> 13986733b39aSJayamohan Kallickal dw[offsetof(struct amap_i_t_dpdu_cqe, 13996733b39aSJayamohan Kallickal index) / 32] & PDUCQE_INDEX_MASK)); 14006733b39aSJayamohan Kallickal buffer_len = (unsigned long)(phys_addr.u.a64.address - 14016733b39aSJayamohan Kallickal pasync_ctx->async_data.pa_base.u. 14026733b39aSJayamohan Kallickal a64.address); 14036733b39aSJayamohan Kallickal buffer_index = buffer_len / pasync_ctx->async_data.buffer_size; 14046733b39aSJayamohan Kallickal break; 14056733b39aSJayamohan Kallickal default: 14066733b39aSJayamohan Kallickal pbusy_list = NULL; 14076733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 14086733b39aSJayamohan Kallickal "Unexpected code=%d\n", 14096733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 14106733b39aSJayamohan Kallickal code) / 32] & PDUCQE_CODE_MASK); 14116733b39aSJayamohan Kallickal return NULL; 14126733b39aSJayamohan Kallickal } 14136733b39aSJayamohan Kallickal 14146733b39aSJayamohan Kallickal WARN_ON(!(buffer_index <= pasync_ctx->async_data.num_entries)); 14156733b39aSJayamohan Kallickal WARN_ON(list_empty(pbusy_list)); 14166733b39aSJayamohan Kallickal list_for_each_entry(pasync_handle, pbusy_list, link) { 14176733b39aSJayamohan Kallickal WARN_ON(pasync_handle->consumed); 14186733b39aSJayamohan Kallickal if (pasync_handle->index == buffer_index) 14196733b39aSJayamohan Kallickal break; 14206733b39aSJayamohan Kallickal } 14216733b39aSJayamohan Kallickal 14226733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 14236733b39aSJayamohan Kallickal 14247da50879SJayamohan Kallickal pasync_handle->cri = (unsigned short)beiscsi_conn->beiscsi_conn_cid - 14257da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start; 14266733b39aSJayamohan Kallickal pasync_handle->is_header = is_header; 14276733b39aSJayamohan Kallickal pasync_handle->buffer_len = ((pdpdu_cqe-> 14286733b39aSJayamohan Kallickal dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32] 14296733b39aSJayamohan Kallickal & PDUCQE_DPL_MASK) >> 16); 14306733b39aSJayamohan Kallickal 14316733b39aSJayamohan Kallickal *pcq_index = (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 14326733b39aSJayamohan Kallickal index) / 32] & PDUCQE_INDEX_MASK); 14336733b39aSJayamohan Kallickal return pasync_handle; 14346733b39aSJayamohan Kallickal } 14356733b39aSJayamohan Kallickal 14366733b39aSJayamohan Kallickal static unsigned int 14376733b39aSJayamohan Kallickal hwi_update_async_writables(struct hwi_async_pdu_context *pasync_ctx, 14386733b39aSJayamohan Kallickal unsigned int is_header, unsigned int cq_index) 14396733b39aSJayamohan Kallickal { 14406733b39aSJayamohan Kallickal struct list_head *pbusy_list; 14416733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 14426733b39aSJayamohan Kallickal unsigned int num_entries, writables = 0; 14436733b39aSJayamohan Kallickal unsigned int *pep_read_ptr, *pwritables; 14446733b39aSJayamohan Kallickal 14456733b39aSJayamohan Kallickal 14466733b39aSJayamohan Kallickal if (is_header) { 14476733b39aSJayamohan Kallickal pep_read_ptr = &pasync_ctx->async_header.ep_read_ptr; 14486733b39aSJayamohan Kallickal pwritables = &pasync_ctx->async_header.writables; 14496733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_header.num_entries; 14506733b39aSJayamohan Kallickal } else { 14516733b39aSJayamohan Kallickal pep_read_ptr = &pasync_ctx->async_data.ep_read_ptr; 14526733b39aSJayamohan Kallickal pwritables = &pasync_ctx->async_data.writables; 14536733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_data.num_entries; 14546733b39aSJayamohan Kallickal } 14556733b39aSJayamohan Kallickal 14566733b39aSJayamohan Kallickal while ((*pep_read_ptr) != cq_index) { 14576733b39aSJayamohan Kallickal (*pep_read_ptr)++; 14586733b39aSJayamohan Kallickal *pep_read_ptr = (*pep_read_ptr) % num_entries; 14596733b39aSJayamohan Kallickal 14606733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, is_header, 14616733b39aSJayamohan Kallickal *pep_read_ptr); 14626733b39aSJayamohan Kallickal if (writables == 0) 14636733b39aSJayamohan Kallickal WARN_ON(list_empty(pbusy_list)); 14646733b39aSJayamohan Kallickal 14656733b39aSJayamohan Kallickal if (!list_empty(pbusy_list)) { 14666733b39aSJayamohan Kallickal pasync_handle = list_entry(pbusy_list->next, 14676733b39aSJayamohan Kallickal struct async_pdu_handle, 14686733b39aSJayamohan Kallickal link); 14696733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 14706733b39aSJayamohan Kallickal pasync_handle->consumed = 1; 14716733b39aSJayamohan Kallickal } 14726733b39aSJayamohan Kallickal 14736733b39aSJayamohan Kallickal writables++; 14746733b39aSJayamohan Kallickal } 14756733b39aSJayamohan Kallickal 14766733b39aSJayamohan Kallickal if (!writables) { 14776733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 14786733b39aSJayamohan Kallickal "Duplicate notification received - index 0x%x!!\n", 14796733b39aSJayamohan Kallickal cq_index); 14806733b39aSJayamohan Kallickal WARN_ON(1); 14816733b39aSJayamohan Kallickal } 14826733b39aSJayamohan Kallickal 14836733b39aSJayamohan Kallickal *pwritables = *pwritables + writables; 14846733b39aSJayamohan Kallickal return 0; 14856733b39aSJayamohan Kallickal } 14866733b39aSJayamohan Kallickal 14876733b39aSJayamohan Kallickal static unsigned int hwi_free_async_msg(struct beiscsi_hba *phba, 14886733b39aSJayamohan Kallickal unsigned int cri) 14896733b39aSJayamohan Kallickal { 14906733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 14916733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 14926733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle, *tmp_handle; 14936733b39aSJayamohan Kallickal struct list_head *plist; 14946733b39aSJayamohan Kallickal unsigned int i = 0; 14956733b39aSJayamohan Kallickal 14966733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 14976733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 14986733b39aSJayamohan Kallickal 14996733b39aSJayamohan Kallickal plist = &pasync_ctx->async_entry[cri].wait_queue.list; 15006733b39aSJayamohan Kallickal 15016733b39aSJayamohan Kallickal list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link) { 15026733b39aSJayamohan Kallickal list_del(&pasync_handle->link); 15036733b39aSJayamohan Kallickal 15046733b39aSJayamohan Kallickal if (i == 0) { 15056733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 15066733b39aSJayamohan Kallickal &pasync_ctx->async_header.free_list); 15076733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries++; 15086733b39aSJayamohan Kallickal i++; 15096733b39aSJayamohan Kallickal } else { 15106733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 15116733b39aSJayamohan Kallickal &pasync_ctx->async_data.free_list); 15126733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries++; 15136733b39aSJayamohan Kallickal i++; 15146733b39aSJayamohan Kallickal } 15156733b39aSJayamohan Kallickal } 15166733b39aSJayamohan Kallickal 15176733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[cri].wait_queue.list); 15186733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_received = 0; 15196733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0; 15206733b39aSJayamohan Kallickal return 0; 15216733b39aSJayamohan Kallickal } 15226733b39aSJayamohan Kallickal 15236733b39aSJayamohan Kallickal static struct phys_addr * 15246733b39aSJayamohan Kallickal hwi_get_ring_address(struct hwi_async_pdu_context *pasync_ctx, 15256733b39aSJayamohan Kallickal unsigned int is_header, unsigned int host_write_ptr) 15266733b39aSJayamohan Kallickal { 15276733b39aSJayamohan Kallickal struct phys_addr *pasync_sge = NULL; 15286733b39aSJayamohan Kallickal 15296733b39aSJayamohan Kallickal if (is_header) 15306733b39aSJayamohan Kallickal pasync_sge = pasync_ctx->async_header.ring_base; 15316733b39aSJayamohan Kallickal else 15326733b39aSJayamohan Kallickal pasync_sge = pasync_ctx->async_data.ring_base; 15336733b39aSJayamohan Kallickal 15346733b39aSJayamohan Kallickal return pasync_sge + host_write_ptr; 15356733b39aSJayamohan Kallickal } 15366733b39aSJayamohan Kallickal 15376733b39aSJayamohan Kallickal static void hwi_post_async_buffers(struct beiscsi_hba *phba, 15386733b39aSJayamohan Kallickal unsigned int is_header) 15396733b39aSJayamohan Kallickal { 15406733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 15416733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 15426733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 15436733b39aSJayamohan Kallickal struct list_head *pfree_link, *pbusy_list; 15446733b39aSJayamohan Kallickal struct phys_addr *pasync_sge; 15456733b39aSJayamohan Kallickal unsigned int ring_id, num_entries; 15466733b39aSJayamohan Kallickal unsigned int host_write_num; 15476733b39aSJayamohan Kallickal unsigned int writables; 15486733b39aSJayamohan Kallickal unsigned int i = 0; 15496733b39aSJayamohan Kallickal u32 doorbell = 0; 15506733b39aSJayamohan Kallickal 15516733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 15526733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 15536733b39aSJayamohan Kallickal 15546733b39aSJayamohan Kallickal if (is_header) { 15556733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_header.num_entries; 15566733b39aSJayamohan Kallickal writables = min(pasync_ctx->async_header.writables, 15576733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries); 15586733b39aSJayamohan Kallickal pfree_link = pasync_ctx->async_header.free_list.next; 15596733b39aSJayamohan Kallickal host_write_num = pasync_ctx->async_header.host_write_ptr; 15606733b39aSJayamohan Kallickal ring_id = phwi_ctrlr->default_pdu_hdr.id; 15616733b39aSJayamohan Kallickal } else { 15626733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_data.num_entries; 15636733b39aSJayamohan Kallickal writables = min(pasync_ctx->async_data.writables, 15646733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries); 15656733b39aSJayamohan Kallickal pfree_link = pasync_ctx->async_data.free_list.next; 15666733b39aSJayamohan Kallickal host_write_num = pasync_ctx->async_data.host_write_ptr; 15676733b39aSJayamohan Kallickal ring_id = phwi_ctrlr->default_pdu_data.id; 15686733b39aSJayamohan Kallickal } 15696733b39aSJayamohan Kallickal 15706733b39aSJayamohan Kallickal writables = (writables / 8) * 8; 15716733b39aSJayamohan Kallickal if (writables) { 15726733b39aSJayamohan Kallickal for (i = 0; i < writables; i++) { 15736733b39aSJayamohan Kallickal pbusy_list = 15746733b39aSJayamohan Kallickal hwi_get_async_busy_list(pasync_ctx, is_header, 15756733b39aSJayamohan Kallickal host_write_num); 15766733b39aSJayamohan Kallickal pasync_handle = 15776733b39aSJayamohan Kallickal list_entry(pfree_link, struct async_pdu_handle, 15786733b39aSJayamohan Kallickal link); 15796733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 15806733b39aSJayamohan Kallickal pasync_handle->consumed = 0; 15816733b39aSJayamohan Kallickal 15826733b39aSJayamohan Kallickal pfree_link = pfree_link->next; 15836733b39aSJayamohan Kallickal 15846733b39aSJayamohan Kallickal pasync_sge = hwi_get_ring_address(pasync_ctx, 15856733b39aSJayamohan Kallickal is_header, host_write_num); 15866733b39aSJayamohan Kallickal 15876733b39aSJayamohan Kallickal pasync_sge->hi = pasync_handle->pa.u.a32.address_lo; 15886733b39aSJayamohan Kallickal pasync_sge->lo = pasync_handle->pa.u.a32.address_hi; 15896733b39aSJayamohan Kallickal 15906733b39aSJayamohan Kallickal list_move(&pasync_handle->link, pbusy_list); 15916733b39aSJayamohan Kallickal 15926733b39aSJayamohan Kallickal host_write_num++; 15936733b39aSJayamohan Kallickal host_write_num = host_write_num % num_entries; 15946733b39aSJayamohan Kallickal } 15956733b39aSJayamohan Kallickal 15966733b39aSJayamohan Kallickal if (is_header) { 15976733b39aSJayamohan Kallickal pasync_ctx->async_header.host_write_ptr = 15986733b39aSJayamohan Kallickal host_write_num; 15996733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries -= writables; 16006733b39aSJayamohan Kallickal pasync_ctx->async_header.writables -= writables; 16016733b39aSJayamohan Kallickal pasync_ctx->async_header.busy_entries += writables; 16026733b39aSJayamohan Kallickal } else { 16036733b39aSJayamohan Kallickal pasync_ctx->async_data.host_write_ptr = host_write_num; 16046733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries -= writables; 16056733b39aSJayamohan Kallickal pasync_ctx->async_data.writables -= writables; 16066733b39aSJayamohan Kallickal pasync_ctx->async_data.busy_entries += writables; 16076733b39aSJayamohan Kallickal } 16086733b39aSJayamohan Kallickal 16096733b39aSJayamohan Kallickal doorbell |= ring_id & DB_DEF_PDU_RING_ID_MASK; 16106733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_REARM_SHIFT; 16116733b39aSJayamohan Kallickal doorbell |= 0 << DB_DEF_PDU_EVENT_SHIFT; 16126733b39aSJayamohan Kallickal doorbell |= (writables & DB_DEF_PDU_CQPROC_MASK) 16136733b39aSJayamohan Kallickal << DB_DEF_PDU_CQPROC_SHIFT; 16146733b39aSJayamohan Kallickal 16156733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_RXULP0_OFFSET); 16166733b39aSJayamohan Kallickal } 16176733b39aSJayamohan Kallickal } 16186733b39aSJayamohan Kallickal 16196733b39aSJayamohan Kallickal static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba, 16206733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn, 16216733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe) 16226733b39aSJayamohan Kallickal { 16236733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 16246733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 16256733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 16266733b39aSJayamohan Kallickal unsigned int cq_index = -1; 16276733b39aSJayamohan Kallickal 16286733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 16296733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 16306733b39aSJayamohan Kallickal 16316733b39aSJayamohan Kallickal pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx, 16326733b39aSJayamohan Kallickal pdpdu_cqe, &cq_index); 16336733b39aSJayamohan Kallickal BUG_ON(pasync_handle->is_header != 0); 16346733b39aSJayamohan Kallickal if (pasync_handle->consumed == 0) 16356733b39aSJayamohan Kallickal hwi_update_async_writables(pasync_ctx, pasync_handle->is_header, 16366733b39aSJayamohan Kallickal cq_index); 16376733b39aSJayamohan Kallickal 16386733b39aSJayamohan Kallickal hwi_free_async_msg(phba, pasync_handle->cri); 16396733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, pasync_handle->is_header); 16406733b39aSJayamohan Kallickal } 16416733b39aSJayamohan Kallickal 16426733b39aSJayamohan Kallickal static unsigned int 16436733b39aSJayamohan Kallickal hwi_fwd_async_msg(struct beiscsi_conn *beiscsi_conn, 16446733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 16456733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, unsigned short cri) 16466733b39aSJayamohan Kallickal { 16476733b39aSJayamohan Kallickal struct list_head *plist; 16486733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 16496733b39aSJayamohan Kallickal void *phdr = NULL; 16506733b39aSJayamohan Kallickal unsigned int hdr_len = 0, buf_len = 0; 16516733b39aSJayamohan Kallickal unsigned int status, index = 0, offset = 0; 16526733b39aSJayamohan Kallickal void *pfirst_buffer = NULL; 16536733b39aSJayamohan Kallickal unsigned int num_buf = 0; 16546733b39aSJayamohan Kallickal 16556733b39aSJayamohan Kallickal plist = &pasync_ctx->async_entry[cri].wait_queue.list; 16566733b39aSJayamohan Kallickal 16576733b39aSJayamohan Kallickal list_for_each_entry(pasync_handle, plist, link) { 16586733b39aSJayamohan Kallickal if (index == 0) { 16596733b39aSJayamohan Kallickal phdr = pasync_handle->pbuffer; 16606733b39aSJayamohan Kallickal hdr_len = pasync_handle->buffer_len; 16616733b39aSJayamohan Kallickal } else { 16626733b39aSJayamohan Kallickal buf_len = pasync_handle->buffer_len; 16636733b39aSJayamohan Kallickal if (!num_buf) { 16646733b39aSJayamohan Kallickal pfirst_buffer = pasync_handle->pbuffer; 16656733b39aSJayamohan Kallickal num_buf++; 16666733b39aSJayamohan Kallickal } 16676733b39aSJayamohan Kallickal memcpy(pfirst_buffer + offset, 16686733b39aSJayamohan Kallickal pasync_handle->pbuffer, buf_len); 16696733b39aSJayamohan Kallickal offset = buf_len; 16706733b39aSJayamohan Kallickal } 16716733b39aSJayamohan Kallickal index++; 16726733b39aSJayamohan Kallickal } 16736733b39aSJayamohan Kallickal 16746733b39aSJayamohan Kallickal status = beiscsi_process_async_pdu(beiscsi_conn, phba, 16757da50879SJayamohan Kallickal (beiscsi_conn->beiscsi_conn_cid - 16767da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start), 16776733b39aSJayamohan Kallickal phdr, hdr_len, pfirst_buffer, 16786733b39aSJayamohan Kallickal buf_len); 16796733b39aSJayamohan Kallickal 16806733b39aSJayamohan Kallickal if (status == 0) 16816733b39aSJayamohan Kallickal hwi_free_async_msg(phba, cri); 16826733b39aSJayamohan Kallickal return 0; 16836733b39aSJayamohan Kallickal } 16846733b39aSJayamohan Kallickal 16856733b39aSJayamohan Kallickal static unsigned int 16866733b39aSJayamohan Kallickal hwi_gather_async_pdu(struct beiscsi_conn *beiscsi_conn, 16876733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 16886733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle) 16896733b39aSJayamohan Kallickal { 16906733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 16916733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 16926733b39aSJayamohan Kallickal unsigned int bytes_needed = 0, status = 0; 16936733b39aSJayamohan Kallickal unsigned short cri = pasync_handle->cri; 16946733b39aSJayamohan Kallickal struct pdu_base *ppdu; 16956733b39aSJayamohan Kallickal 16966733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 16976733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 16986733b39aSJayamohan Kallickal 16996733b39aSJayamohan Kallickal list_del(&pasync_handle->link); 17006733b39aSJayamohan Kallickal if (pasync_handle->is_header) { 17016733b39aSJayamohan Kallickal pasync_ctx->async_header.busy_entries--; 17026733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) { 17036733b39aSJayamohan Kallickal hwi_free_async_msg(phba, cri); 17046733b39aSJayamohan Kallickal BUG(); 17056733b39aSJayamohan Kallickal } 17066733b39aSJayamohan Kallickal 17076733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0; 17086733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_received = 1; 17096733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_len = 17106733b39aSJayamohan Kallickal (unsigned short)pasync_handle->buffer_len; 17116733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 17126733b39aSJayamohan Kallickal &pasync_ctx->async_entry[cri].wait_queue.list); 17136733b39aSJayamohan Kallickal 17146733b39aSJayamohan Kallickal ppdu = pasync_handle->pbuffer; 17156733b39aSJayamohan Kallickal bytes_needed = ((((ppdu->dw[offsetof(struct amap_pdu_base, 17166733b39aSJayamohan Kallickal data_len_hi) / 32] & PDUBASE_DATALENHI_MASK) << 8) & 17176733b39aSJayamohan Kallickal 0xFFFF0000) | ((be16_to_cpu((ppdu-> 17186733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_base, data_len_lo) / 32] 17196733b39aSJayamohan Kallickal & PDUBASE_DATALENLO_MASK) >> 16)) & 0x0000FFFF)); 17206733b39aSJayamohan Kallickal 17216733b39aSJayamohan Kallickal if (status == 0) { 17226733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_needed = 17236733b39aSJayamohan Kallickal bytes_needed; 17246733b39aSJayamohan Kallickal 17256733b39aSJayamohan Kallickal if (bytes_needed == 0) 17266733b39aSJayamohan Kallickal status = hwi_fwd_async_msg(beiscsi_conn, phba, 17276733b39aSJayamohan Kallickal pasync_ctx, cri); 17286733b39aSJayamohan Kallickal } 17296733b39aSJayamohan Kallickal } else { 17306733b39aSJayamohan Kallickal pasync_ctx->async_data.busy_entries--; 17316733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) { 17326733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 17336733b39aSJayamohan Kallickal &pasync_ctx->async_entry[cri].wait_queue. 17346733b39aSJayamohan Kallickal list); 17356733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue. 17366733b39aSJayamohan Kallickal bytes_received += 17376733b39aSJayamohan Kallickal (unsigned short)pasync_handle->buffer_len; 17386733b39aSJayamohan Kallickal 17396733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue. 17406733b39aSJayamohan Kallickal bytes_received >= 17416733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue. 17426733b39aSJayamohan Kallickal bytes_needed) 17436733b39aSJayamohan Kallickal status = hwi_fwd_async_msg(beiscsi_conn, phba, 17446733b39aSJayamohan Kallickal pasync_ctx, cri); 17456733b39aSJayamohan Kallickal } 17466733b39aSJayamohan Kallickal } 17476733b39aSJayamohan Kallickal return status; 17486733b39aSJayamohan Kallickal } 17496733b39aSJayamohan Kallickal 17506733b39aSJayamohan Kallickal static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn, 17516733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 17526733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe) 17536733b39aSJayamohan Kallickal { 17546733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 17556733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 17566733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 17576733b39aSJayamohan Kallickal unsigned int cq_index = -1; 17586733b39aSJayamohan Kallickal 17596733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 17606733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 17616733b39aSJayamohan Kallickal pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx, 17626733b39aSJayamohan Kallickal pdpdu_cqe, &cq_index); 17636733b39aSJayamohan Kallickal 17646733b39aSJayamohan Kallickal if (pasync_handle->consumed == 0) 17656733b39aSJayamohan Kallickal hwi_update_async_writables(pasync_ctx, pasync_handle->is_header, 17666733b39aSJayamohan Kallickal cq_index); 17676733b39aSJayamohan Kallickal hwi_gather_async_pdu(beiscsi_conn, phba, pasync_handle); 17686733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, pasync_handle->is_header); 17696733b39aSJayamohan Kallickal } 17706733b39aSJayamohan Kallickal 1771756d29c8SJayamohan Kallickal static void beiscsi_process_mcc_isr(struct beiscsi_hba *phba) 1772756d29c8SJayamohan Kallickal { 1773756d29c8SJayamohan Kallickal struct be_queue_info *mcc_cq; 1774756d29c8SJayamohan Kallickal struct be_mcc_compl *mcc_compl; 1775756d29c8SJayamohan Kallickal unsigned int num_processed = 0; 1776756d29c8SJayamohan Kallickal 1777756d29c8SJayamohan Kallickal mcc_cq = &phba->ctrl.mcc_obj.cq; 1778756d29c8SJayamohan Kallickal mcc_compl = queue_tail_node(mcc_cq); 1779756d29c8SJayamohan Kallickal mcc_compl->flags = le32_to_cpu(mcc_compl->flags); 1780756d29c8SJayamohan Kallickal while (mcc_compl->flags & CQE_FLAGS_VALID_MASK) { 1781756d29c8SJayamohan Kallickal 1782756d29c8SJayamohan Kallickal if (num_processed >= 32) { 1783756d29c8SJayamohan Kallickal hwi_ring_cq_db(phba, mcc_cq->id, 1784756d29c8SJayamohan Kallickal num_processed, 0, 0); 1785756d29c8SJayamohan Kallickal num_processed = 0; 1786756d29c8SJayamohan Kallickal } 1787756d29c8SJayamohan Kallickal if (mcc_compl->flags & CQE_FLAGS_ASYNC_MASK) { 1788756d29c8SJayamohan Kallickal /* Interpret flags as an async trailer */ 1789756d29c8SJayamohan Kallickal if (is_link_state_evt(mcc_compl->flags)) 1790756d29c8SJayamohan Kallickal /* Interpret compl as a async link evt */ 1791756d29c8SJayamohan Kallickal beiscsi_async_link_state_process(phba, 1792756d29c8SJayamohan Kallickal (struct be_async_event_link_state *) mcc_compl); 1793756d29c8SJayamohan Kallickal else 1794756d29c8SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 1795756d29c8SJayamohan Kallickal " Unsupported Async Event, flags" 1796756d29c8SJayamohan Kallickal " = 0x%08x\n", mcc_compl->flags); 1797756d29c8SJayamohan Kallickal } else if (mcc_compl->flags & CQE_FLAGS_COMPLETED_MASK) { 1798756d29c8SJayamohan Kallickal be_mcc_compl_process_isr(&phba->ctrl, mcc_compl); 1799756d29c8SJayamohan Kallickal atomic_dec(&phba->ctrl.mcc_obj.q.used); 1800756d29c8SJayamohan Kallickal } 1801756d29c8SJayamohan Kallickal 1802756d29c8SJayamohan Kallickal mcc_compl->flags = 0; 1803756d29c8SJayamohan Kallickal queue_tail_inc(mcc_cq); 1804756d29c8SJayamohan Kallickal mcc_compl = queue_tail_node(mcc_cq); 1805756d29c8SJayamohan Kallickal mcc_compl->flags = le32_to_cpu(mcc_compl->flags); 1806756d29c8SJayamohan Kallickal num_processed++; 1807756d29c8SJayamohan Kallickal } 1808756d29c8SJayamohan Kallickal 1809756d29c8SJayamohan Kallickal if (num_processed > 0) 1810756d29c8SJayamohan Kallickal hwi_ring_cq_db(phba, mcc_cq->id, num_processed, 1, 0); 1811756d29c8SJayamohan Kallickal 1812756d29c8SJayamohan Kallickal } 1813bfead3b2SJayamohan Kallickal 1814bfead3b2SJayamohan Kallickal static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq) 18156733b39aSJayamohan Kallickal { 18166733b39aSJayamohan Kallickal struct be_queue_info *cq; 18176733b39aSJayamohan Kallickal struct sol_cqe *sol; 18186733b39aSJayamohan Kallickal struct dmsg_cqe *dmsg; 18196733b39aSJayamohan Kallickal unsigned int num_processed = 0; 18206733b39aSJayamohan Kallickal unsigned int tot_nump = 0; 18216733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 1822c2462288SJayamohan Kallickal struct beiscsi_endpoint *beiscsi_ep; 1823c2462288SJayamohan Kallickal struct iscsi_endpoint *ep; 1824bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 18256733b39aSJayamohan Kallickal 1826bfead3b2SJayamohan Kallickal cq = pbe_eq->cq; 18276733b39aSJayamohan Kallickal sol = queue_tail_node(cq); 1828bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 18296733b39aSJayamohan Kallickal 18306733b39aSJayamohan Kallickal while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] & 18316733b39aSJayamohan Kallickal CQE_VALID_MASK) { 18326733b39aSJayamohan Kallickal be_dws_le_to_cpu(sol, sizeof(struct sol_cqe)); 18336733b39aSJayamohan Kallickal 1834c2462288SJayamohan Kallickal ep = phba->ep_array[(u32) ((sol-> 18356733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, cid) / 32] & 18367da50879SJayamohan Kallickal SOL_CID_MASK) >> 6) - 18377da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 183832951dd8SJayamohan Kallickal 1839c2462288SJayamohan Kallickal beiscsi_ep = ep->dd_data; 1840c2462288SJayamohan Kallickal beiscsi_conn = beiscsi_ep->conn; 1841756d29c8SJayamohan Kallickal 18426733b39aSJayamohan Kallickal if (num_processed >= 32) { 1843bfead3b2SJayamohan Kallickal hwi_ring_cq_db(phba, cq->id, 18446733b39aSJayamohan Kallickal num_processed, 0, 0); 18456733b39aSJayamohan Kallickal tot_nump += num_processed; 18466733b39aSJayamohan Kallickal num_processed = 0; 18476733b39aSJayamohan Kallickal } 18486733b39aSJayamohan Kallickal 18496733b39aSJayamohan Kallickal switch ((u32) sol->dw[offsetof(struct amap_sol_cqe, code) / 18506733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK) { 18516733b39aSJayamohan Kallickal case SOL_CMD_COMPLETE: 18526733b39aSJayamohan Kallickal hwi_complete_cmd(beiscsi_conn, phba, sol); 18536733b39aSJayamohan Kallickal break; 18546733b39aSJayamohan Kallickal case DRIVERMSG_NOTIFY: 18556733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Received DRIVERMSG_NOTIFY\n"); 18566733b39aSJayamohan Kallickal dmsg = (struct dmsg_cqe *)sol; 18576733b39aSJayamohan Kallickal hwi_complete_drvr_msgs(beiscsi_conn, phba, sol); 18586733b39aSJayamohan Kallickal break; 18596733b39aSJayamohan Kallickal case UNSOL_HDR_NOTIFY: 1860bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Received UNSOL_HDR_ NOTIFY\n"); 1861bfead3b2SJayamohan Kallickal hwi_process_default_pdu_ring(beiscsi_conn, phba, 1862bfead3b2SJayamohan Kallickal (struct i_t_dpdu_cqe *)sol); 1863bfead3b2SJayamohan Kallickal break; 18646733b39aSJayamohan Kallickal case UNSOL_DATA_NOTIFY: 1865bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Received UNSOL_DATA_NOTIFY\n"); 18666733b39aSJayamohan Kallickal hwi_process_default_pdu_ring(beiscsi_conn, phba, 18676733b39aSJayamohan Kallickal (struct i_t_dpdu_cqe *)sol); 18686733b39aSJayamohan Kallickal break; 18696733b39aSJayamohan Kallickal case CXN_INVALIDATE_INDEX_NOTIFY: 18706733b39aSJayamohan Kallickal case CMD_INVALIDATED_NOTIFY: 18716733b39aSJayamohan Kallickal case CXN_INVALIDATE_NOTIFY: 18726733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 18736733b39aSJayamohan Kallickal "Ignoring CQ Error notification for cmd/cxn" 18746733b39aSJayamohan Kallickal "invalidate\n"); 18756733b39aSJayamohan Kallickal break; 18766733b39aSJayamohan Kallickal case SOL_CMD_KILLED_DATA_DIGEST_ERR: 18776733b39aSJayamohan Kallickal case CMD_KILLED_INVALID_STATSN_RCVD: 18786733b39aSJayamohan Kallickal case CMD_KILLED_INVALID_R2T_RCVD: 18796733b39aSJayamohan Kallickal case CMD_CXN_KILLED_LUN_INVALID: 18806733b39aSJayamohan Kallickal case CMD_CXN_KILLED_ICD_INVALID: 18816733b39aSJayamohan Kallickal case CMD_CXN_KILLED_ITT_INVALID: 18826733b39aSJayamohan Kallickal case CMD_CXN_KILLED_SEQ_OUTOFORDER: 18836733b39aSJayamohan Kallickal case CMD_CXN_KILLED_INVALID_DATASN_RCVD: 18846733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 18856733b39aSJayamohan Kallickal "CQ Error notification for cmd.. " 18866733b39aSJayamohan Kallickal "code %d cid 0x%x\n", 18876733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 18886733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 18896733b39aSJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 18906733b39aSJayamohan Kallickal 32] & SOL_CID_MASK)); 18916733b39aSJayamohan Kallickal break; 18926733b39aSJayamohan Kallickal case UNSOL_DATA_DIGEST_ERROR_NOTIFY: 18936733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 18946733b39aSJayamohan Kallickal "Digest error on def pdu ring, dropping..\n"); 18956733b39aSJayamohan Kallickal hwi_flush_default_pdu_buffer(phba, beiscsi_conn, 18966733b39aSJayamohan Kallickal (struct i_t_dpdu_cqe *) sol); 18976733b39aSJayamohan Kallickal break; 18986733b39aSJayamohan Kallickal case CXN_KILLED_PDU_SIZE_EXCEEDS_DSL: 18996733b39aSJayamohan Kallickal case CXN_KILLED_BURST_LEN_MISMATCH: 19006733b39aSJayamohan Kallickal case CXN_KILLED_AHS_RCVD: 19016733b39aSJayamohan Kallickal case CXN_KILLED_HDR_DIGEST_ERR: 19026733b39aSJayamohan Kallickal case CXN_KILLED_UNKNOWN_HDR: 19036733b39aSJayamohan Kallickal case CXN_KILLED_STALE_ITT_TTT_RCVD: 19046733b39aSJayamohan Kallickal case CXN_KILLED_INVALID_ITT_TTT_RCVD: 19056733b39aSJayamohan Kallickal case CXN_KILLED_TIMED_OUT: 19066733b39aSJayamohan Kallickal case CXN_KILLED_FIN_RCVD: 19076733b39aSJayamohan Kallickal case CXN_KILLED_BAD_UNSOL_PDU_RCVD: 19086733b39aSJayamohan Kallickal case CXN_KILLED_BAD_WRB_INDEX_ERROR: 19096733b39aSJayamohan Kallickal case CXN_KILLED_OVER_RUN_RESIDUAL: 19106733b39aSJayamohan Kallickal case CXN_KILLED_UNDER_RUN_RESIDUAL: 19116733b39aSJayamohan Kallickal case CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN: 1912bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset CID " 19136733b39aSJayamohan Kallickal "0x%x...\n", 19146733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 19156733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 19167da50879SJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 19177da50879SJayamohan Kallickal 32] & CQE_CID_MASK)); 19186733b39aSJayamohan Kallickal iscsi_conn_failure(beiscsi_conn->conn, 19196733b39aSJayamohan Kallickal ISCSI_ERR_CONN_FAILED); 19206733b39aSJayamohan Kallickal break; 19216733b39aSJayamohan Kallickal case CXN_KILLED_RST_SENT: 19226733b39aSJayamohan Kallickal case CXN_KILLED_RST_RCVD: 1923bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset" 1924bfead3b2SJayamohan Kallickal "received/sent on CID 0x%x...\n", 19256733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 19266733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 19277da50879SJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 19287da50879SJayamohan Kallickal 32] & CQE_CID_MASK)); 19296733b39aSJayamohan Kallickal iscsi_conn_failure(beiscsi_conn->conn, 19306733b39aSJayamohan Kallickal ISCSI_ERR_CONN_FAILED); 19316733b39aSJayamohan Kallickal break; 19326733b39aSJayamohan Kallickal default: 19336733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error Invalid code= %d " 19346733b39aSJayamohan Kallickal "received on CID 0x%x...\n", 19356733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 19366733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 19377da50879SJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 19387da50879SJayamohan Kallickal 32] & CQE_CID_MASK)); 19396733b39aSJayamohan Kallickal break; 19406733b39aSJayamohan Kallickal } 19416733b39aSJayamohan Kallickal 19426733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_sol_cqe, valid, sol, 0); 19436733b39aSJayamohan Kallickal queue_tail_inc(cq); 19446733b39aSJayamohan Kallickal sol = queue_tail_node(cq); 19456733b39aSJayamohan Kallickal num_processed++; 19466733b39aSJayamohan Kallickal } 19476733b39aSJayamohan Kallickal 19486733b39aSJayamohan Kallickal if (num_processed > 0) { 19496733b39aSJayamohan Kallickal tot_nump += num_processed; 1950bfead3b2SJayamohan Kallickal hwi_ring_cq_db(phba, cq->id, num_processed, 1, 0); 19516733b39aSJayamohan Kallickal } 19526733b39aSJayamohan Kallickal return tot_nump; 19536733b39aSJayamohan Kallickal } 19546733b39aSJayamohan Kallickal 1955756d29c8SJayamohan Kallickal void beiscsi_process_all_cqs(struct work_struct *work) 19566733b39aSJayamohan Kallickal { 19576733b39aSJayamohan Kallickal unsigned long flags; 1958bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 1959bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 1960bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 19616733b39aSJayamohan Kallickal struct beiscsi_hba *phba = 19626733b39aSJayamohan Kallickal container_of(work, struct beiscsi_hba, work_cqs); 19636733b39aSJayamohan Kallickal 1964bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 1965bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 1966bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 1967bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[phba->num_cpus]; 1968bfead3b2SJayamohan Kallickal else 1969bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[0]; 1970bfead3b2SJayamohan Kallickal 19716733b39aSJayamohan Kallickal if (phba->todo_mcc_cq) { 19726733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 19736733b39aSJayamohan Kallickal phba->todo_mcc_cq = 0; 19746733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 1975756d29c8SJayamohan Kallickal beiscsi_process_mcc_isr(phba); 19766733b39aSJayamohan Kallickal } 19776733b39aSJayamohan Kallickal 19786733b39aSJayamohan Kallickal if (phba->todo_cq) { 19796733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 19806733b39aSJayamohan Kallickal phba->todo_cq = 0; 19816733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 1982bfead3b2SJayamohan Kallickal beiscsi_process_cq(pbe_eq); 19836733b39aSJayamohan Kallickal } 19846733b39aSJayamohan Kallickal } 19856733b39aSJayamohan Kallickal 19866733b39aSJayamohan Kallickal static int be_iopoll(struct blk_iopoll *iop, int budget) 19876733b39aSJayamohan Kallickal { 19886733b39aSJayamohan Kallickal static unsigned int ret; 19896733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 1990bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 19916733b39aSJayamohan Kallickal 1992bfead3b2SJayamohan Kallickal pbe_eq = container_of(iop, struct be_eq_obj, iopoll); 1993bfead3b2SJayamohan Kallickal ret = beiscsi_process_cq(pbe_eq); 19946733b39aSJayamohan Kallickal if (ret < budget) { 1995bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 19966733b39aSJayamohan Kallickal blk_iopoll_complete(iop); 1997bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "rearm pbe_eq->q.id =%d\n", pbe_eq->q.id); 1998bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1); 19996733b39aSJayamohan Kallickal } 20006733b39aSJayamohan Kallickal return ret; 20016733b39aSJayamohan Kallickal } 20026733b39aSJayamohan Kallickal 20036733b39aSJayamohan Kallickal static void 20046733b39aSJayamohan Kallickal hwi_write_sgl(struct iscsi_wrb *pwrb, struct scatterlist *sg, 20056733b39aSJayamohan Kallickal unsigned int num_sg, struct beiscsi_io_task *io_task) 20066733b39aSJayamohan Kallickal { 20076733b39aSJayamohan Kallickal struct iscsi_sge *psgl; 200858ff4bd0SJayamohan Kallickal unsigned int sg_len, index; 20096733b39aSJayamohan Kallickal unsigned int sge_len = 0; 20106733b39aSJayamohan Kallickal unsigned long long addr; 20116733b39aSJayamohan Kallickal struct scatterlist *l_sg; 20126733b39aSJayamohan Kallickal unsigned int offset; 20136733b39aSJayamohan Kallickal 20146733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb, 20156733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 20166733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb, 20176733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 20186733b39aSJayamohan Kallickal 20196733b39aSJayamohan Kallickal l_sg = sg; 202048bd86cfSJayamohan Kallickal for (index = 0; (index < num_sg) && (index < 2); index++, 202148bd86cfSJayamohan Kallickal sg = sg_next(sg)) { 20226733b39aSJayamohan Kallickal if (index == 0) { 20236733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 20246733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 20256733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb, 2026457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 20276733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb, 2028457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 20296733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb, 20306733b39aSJayamohan Kallickal sg_len); 20316733b39aSJayamohan Kallickal sge_len = sg_len; 20326733b39aSJayamohan Kallickal } else { 20336733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_r2t_offset, 20346733b39aSJayamohan Kallickal pwrb, sge_len); 20356733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 20366733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 20376733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_lo, pwrb, 2038457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 20396733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_hi, pwrb, 2040457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 20416733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_len, pwrb, 20426733b39aSJayamohan Kallickal sg_len); 20436733b39aSJayamohan Kallickal } 20446733b39aSJayamohan Kallickal } 20456733b39aSJayamohan Kallickal psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 20466733b39aSJayamohan Kallickal memset(psgl, 0, sizeof(*psgl) * BE2_SGE); 20476733b39aSJayamohan Kallickal 20486733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2); 20496733b39aSJayamohan Kallickal 20506733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 20516733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 20526733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 20536733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 20546733b39aSJayamohan Kallickal 2055caf818f1SJayamohan Kallickal if (num_sg == 1) { 2056caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 2057caf818f1SJayamohan Kallickal 1); 2058caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 2059caf818f1SJayamohan Kallickal 0); 2060caf818f1SJayamohan Kallickal } else if (num_sg == 2) { 2061caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 2062caf818f1SJayamohan Kallickal 0); 2063caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 2064caf818f1SJayamohan Kallickal 1); 2065caf818f1SJayamohan Kallickal } else { 2066caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 2067caf818f1SJayamohan Kallickal 0); 2068caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 2069caf818f1SJayamohan Kallickal 0); 2070caf818f1SJayamohan Kallickal } 20716733b39aSJayamohan Kallickal sg = l_sg; 20726733b39aSJayamohan Kallickal psgl++; 20736733b39aSJayamohan Kallickal psgl++; 20746733b39aSJayamohan Kallickal offset = 0; 207548bd86cfSJayamohan Kallickal for (index = 0; index < num_sg; index++, sg = sg_next(sg), psgl++) { 20766733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 20776733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 20786733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 20796733b39aSJayamohan Kallickal (addr & 0xFFFFFFFF)); 20806733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 20816733b39aSJayamohan Kallickal (addr >> 32)); 20826733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len); 20836733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset); 20846733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 20856733b39aSJayamohan Kallickal offset += sg_len; 20866733b39aSJayamohan Kallickal } 20876733b39aSJayamohan Kallickal psgl--; 20886733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 20896733b39aSJayamohan Kallickal } 20906733b39aSJayamohan Kallickal 20916733b39aSJayamohan Kallickal static void hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task) 20926733b39aSJayamohan Kallickal { 20936733b39aSJayamohan Kallickal struct iscsi_sge *psgl; 20946733b39aSJayamohan Kallickal unsigned long long addr; 20956733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 20966733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = io_task->conn; 20976733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 20986733b39aSJayamohan Kallickal 20996733b39aSJayamohan Kallickal io_task->bhs_len = sizeof(struct be_nonio_bhs) - 2; 21006733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb, 21016733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 21026733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb, 21036733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 21046733b39aSJayamohan Kallickal 21056733b39aSJayamohan Kallickal if (task->data) { 21066733b39aSJayamohan Kallickal if (task->data_count) { 21076733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1); 21086733b39aSJayamohan Kallickal addr = (u64) pci_map_single(phba->pcidev, 21096733b39aSJayamohan Kallickal task->data, 21106733b39aSJayamohan Kallickal task->data_count, 1); 21116733b39aSJayamohan Kallickal } else { 21126733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 21136733b39aSJayamohan Kallickal addr = 0; 21146733b39aSJayamohan Kallickal } 21156733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb, 2116457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 21176733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb, 2118457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 21196733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb, 21206733b39aSJayamohan Kallickal task->data_count); 21216733b39aSJayamohan Kallickal 21226733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1); 21236733b39aSJayamohan Kallickal } else { 21246733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 21256733b39aSJayamohan Kallickal addr = 0; 21266733b39aSJayamohan Kallickal } 21276733b39aSJayamohan Kallickal 21286733b39aSJayamohan Kallickal psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 21296733b39aSJayamohan Kallickal 21306733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len); 21316733b39aSJayamohan Kallickal 21326733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 21336733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 21346733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 21356733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 21366733b39aSJayamohan Kallickal if (task->data) { 21376733b39aSJayamohan Kallickal psgl++; 21386733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 0); 21396733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 0); 21406733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0); 21416733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, 0); 21426733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, rsvd0, psgl, 0); 21436733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 21446733b39aSJayamohan Kallickal 21456733b39aSJayamohan Kallickal psgl++; 21466733b39aSJayamohan Kallickal if (task->data) { 21476733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 2148457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 21496733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 2150457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 21516733b39aSJayamohan Kallickal } 21526733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0x106); 21536733b39aSJayamohan Kallickal } 21546733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 21556733b39aSJayamohan Kallickal } 21566733b39aSJayamohan Kallickal 21576733b39aSJayamohan Kallickal static void beiscsi_find_mem_req(struct beiscsi_hba *phba) 21586733b39aSJayamohan Kallickal { 2159bfead3b2SJayamohan Kallickal unsigned int num_cq_pages, num_async_pdu_buf_pages; 21606733b39aSJayamohan Kallickal unsigned int num_async_pdu_data_pages, wrb_sz_per_cxn; 21616733b39aSJayamohan Kallickal unsigned int num_async_pdu_buf_sgl_pages, num_async_pdu_data_sgl_pages; 21626733b39aSJayamohan Kallickal 21636733b39aSJayamohan Kallickal num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \ 21646733b39aSJayamohan Kallickal sizeof(struct sol_cqe)); 21656733b39aSJayamohan Kallickal num_async_pdu_buf_pages = 21666733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 21676733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz); 21686733b39aSJayamohan Kallickal num_async_pdu_buf_sgl_pages = 21696733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 21706733b39aSJayamohan Kallickal sizeof(struct phys_addr)); 21716733b39aSJayamohan Kallickal num_async_pdu_data_pages = 21726733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 21736733b39aSJayamohan Kallickal phba->params.defpdu_data_sz); 21746733b39aSJayamohan Kallickal num_async_pdu_data_sgl_pages = 21756733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 21766733b39aSJayamohan Kallickal sizeof(struct phys_addr)); 21776733b39aSJayamohan Kallickal 21786733b39aSJayamohan Kallickal phba->params.hwi_ws_sz = sizeof(struct hwi_controller); 21796733b39aSJayamohan Kallickal 21806733b39aSJayamohan Kallickal phba->mem_req[ISCSI_MEM_GLOBAL_HEADER] = 2 * 21816733b39aSJayamohan Kallickal BE_ISCSI_PDU_HEADER_SIZE; 21826733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ADDN_CONTEXT] = 21836733b39aSJayamohan Kallickal sizeof(struct hwi_context_memory); 21846733b39aSJayamohan Kallickal 21856733b39aSJayamohan Kallickal 21866733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_WRB] = sizeof(struct iscsi_wrb) 21876733b39aSJayamohan Kallickal * (phba->params.wrbs_per_cxn) 21886733b39aSJayamohan Kallickal * phba->params.cxns_per_ctrl; 21896733b39aSJayamohan Kallickal wrb_sz_per_cxn = sizeof(struct wrb_handle) * 21906733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn); 21916733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_WRBH] = roundup_pow_of_two((wrb_sz_per_cxn) * 21926733b39aSJayamohan Kallickal phba->params.cxns_per_ctrl); 21936733b39aSJayamohan Kallickal 21946733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_SGLH] = sizeof(struct sgl_handle) * 21956733b39aSJayamohan Kallickal phba->params.icds_per_ctrl; 21966733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_SGE] = sizeof(struct iscsi_sge) * 21976733b39aSJayamohan Kallickal phba->params.num_sge_per_io * phba->params.icds_per_ctrl; 21986733b39aSJayamohan Kallickal 21996733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_HEADER_BUF] = 22006733b39aSJayamohan Kallickal num_async_pdu_buf_pages * PAGE_SIZE; 22016733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_DATA_BUF] = 22026733b39aSJayamohan Kallickal num_async_pdu_data_pages * PAGE_SIZE; 22036733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_HEADER_RING] = 22046733b39aSJayamohan Kallickal num_async_pdu_buf_sgl_pages * PAGE_SIZE; 22056733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_DATA_RING] = 22066733b39aSJayamohan Kallickal num_async_pdu_data_sgl_pages * PAGE_SIZE; 22076733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_HEADER_HANDLE] = 22086733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl * 22096733b39aSJayamohan Kallickal sizeof(struct async_pdu_handle); 22106733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_DATA_HANDLE] = 22116733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl * 22126733b39aSJayamohan Kallickal sizeof(struct async_pdu_handle); 22136733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_PDU_CONTEXT] = 22146733b39aSJayamohan Kallickal sizeof(struct hwi_async_pdu_context) + 22156733b39aSJayamohan Kallickal (phba->params.cxns_per_ctrl * sizeof(struct hwi_async_entry)); 22166733b39aSJayamohan Kallickal } 22176733b39aSJayamohan Kallickal 22186733b39aSJayamohan Kallickal static int beiscsi_alloc_mem(struct beiscsi_hba *phba) 22196733b39aSJayamohan Kallickal { 22206733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 22216733b39aSJayamohan Kallickal dma_addr_t bus_add; 22226733b39aSJayamohan Kallickal struct mem_array *mem_arr, *mem_arr_orig; 22236733b39aSJayamohan Kallickal unsigned int i, j, alloc_size, curr_alloc_size; 22246733b39aSJayamohan Kallickal 22256733b39aSJayamohan Kallickal phba->phwi_ctrlr = kmalloc(phba->params.hwi_ws_sz, GFP_KERNEL); 22266733b39aSJayamohan Kallickal if (!phba->phwi_ctrlr) 22276733b39aSJayamohan Kallickal return -ENOMEM; 22286733b39aSJayamohan Kallickal 22296733b39aSJayamohan Kallickal phba->init_mem = kcalloc(SE_MEM_MAX, sizeof(*mem_descr), 22306733b39aSJayamohan Kallickal GFP_KERNEL); 22316733b39aSJayamohan Kallickal if (!phba->init_mem) { 22326733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 22336733b39aSJayamohan Kallickal return -ENOMEM; 22346733b39aSJayamohan Kallickal } 22356733b39aSJayamohan Kallickal 22366733b39aSJayamohan Kallickal mem_arr_orig = kmalloc(sizeof(*mem_arr_orig) * BEISCSI_MAX_FRAGS_INIT, 22376733b39aSJayamohan Kallickal GFP_KERNEL); 22386733b39aSJayamohan Kallickal if (!mem_arr_orig) { 22396733b39aSJayamohan Kallickal kfree(phba->init_mem); 22406733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 22416733b39aSJayamohan Kallickal return -ENOMEM; 22426733b39aSJayamohan Kallickal } 22436733b39aSJayamohan Kallickal 22446733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 22456733b39aSJayamohan Kallickal for (i = 0; i < SE_MEM_MAX; i++) { 22466733b39aSJayamohan Kallickal j = 0; 22476733b39aSJayamohan Kallickal mem_arr = mem_arr_orig; 22486733b39aSJayamohan Kallickal alloc_size = phba->mem_req[i]; 22496733b39aSJayamohan Kallickal memset(mem_arr, 0, sizeof(struct mem_array) * 22506733b39aSJayamohan Kallickal BEISCSI_MAX_FRAGS_INIT); 22516733b39aSJayamohan Kallickal curr_alloc_size = min(be_max_phys_size * 1024, alloc_size); 22526733b39aSJayamohan Kallickal do { 22536733b39aSJayamohan Kallickal mem_arr->virtual_address = pci_alloc_consistent( 22546733b39aSJayamohan Kallickal phba->pcidev, 22556733b39aSJayamohan Kallickal curr_alloc_size, 22566733b39aSJayamohan Kallickal &bus_add); 22576733b39aSJayamohan Kallickal if (!mem_arr->virtual_address) { 22586733b39aSJayamohan Kallickal if (curr_alloc_size <= BE_MIN_MEM_SIZE) 22596733b39aSJayamohan Kallickal goto free_mem; 22606733b39aSJayamohan Kallickal if (curr_alloc_size - 22616733b39aSJayamohan Kallickal rounddown_pow_of_two(curr_alloc_size)) 22626733b39aSJayamohan Kallickal curr_alloc_size = rounddown_pow_of_two 22636733b39aSJayamohan Kallickal (curr_alloc_size); 22646733b39aSJayamohan Kallickal else 22656733b39aSJayamohan Kallickal curr_alloc_size = curr_alloc_size / 2; 22666733b39aSJayamohan Kallickal } else { 22676733b39aSJayamohan Kallickal mem_arr->bus_address.u. 22686733b39aSJayamohan Kallickal a64.address = (__u64) bus_add; 22696733b39aSJayamohan Kallickal mem_arr->size = curr_alloc_size; 22706733b39aSJayamohan Kallickal alloc_size -= curr_alloc_size; 22716733b39aSJayamohan Kallickal curr_alloc_size = min(be_max_phys_size * 22726733b39aSJayamohan Kallickal 1024, alloc_size); 22736733b39aSJayamohan Kallickal j++; 22746733b39aSJayamohan Kallickal mem_arr++; 22756733b39aSJayamohan Kallickal } 22766733b39aSJayamohan Kallickal } while (alloc_size); 22776733b39aSJayamohan Kallickal mem_descr->num_elements = j; 22786733b39aSJayamohan Kallickal mem_descr->size_in_bytes = phba->mem_req[i]; 22796733b39aSJayamohan Kallickal mem_descr->mem_array = kmalloc(sizeof(*mem_arr) * j, 22806733b39aSJayamohan Kallickal GFP_KERNEL); 22816733b39aSJayamohan Kallickal if (!mem_descr->mem_array) 22826733b39aSJayamohan Kallickal goto free_mem; 22836733b39aSJayamohan Kallickal 22846733b39aSJayamohan Kallickal memcpy(mem_descr->mem_array, mem_arr_orig, 22856733b39aSJayamohan Kallickal sizeof(struct mem_array) * j); 22866733b39aSJayamohan Kallickal mem_descr++; 22876733b39aSJayamohan Kallickal } 22886733b39aSJayamohan Kallickal kfree(mem_arr_orig); 22896733b39aSJayamohan Kallickal return 0; 22906733b39aSJayamohan Kallickal free_mem: 22916733b39aSJayamohan Kallickal mem_descr->num_elements = j; 22926733b39aSJayamohan Kallickal while ((i) || (j)) { 22936733b39aSJayamohan Kallickal for (j = mem_descr->num_elements; j > 0; j--) { 22946733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 22956733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].size, 22966733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1]. 22976733b39aSJayamohan Kallickal virtual_address, 2298457ff3b7SJayamohan Kallickal (unsigned long)mem_descr-> 2299457ff3b7SJayamohan Kallickal mem_array[j - 1]. 23006733b39aSJayamohan Kallickal bus_address.u.a64.address); 23016733b39aSJayamohan Kallickal } 23026733b39aSJayamohan Kallickal if (i) { 23036733b39aSJayamohan Kallickal i--; 23046733b39aSJayamohan Kallickal kfree(mem_descr->mem_array); 23056733b39aSJayamohan Kallickal mem_descr--; 23066733b39aSJayamohan Kallickal } 23076733b39aSJayamohan Kallickal } 23086733b39aSJayamohan Kallickal kfree(mem_arr_orig); 23096733b39aSJayamohan Kallickal kfree(phba->init_mem); 23106733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 23116733b39aSJayamohan Kallickal return -ENOMEM; 23126733b39aSJayamohan Kallickal } 23136733b39aSJayamohan Kallickal 23146733b39aSJayamohan Kallickal static int beiscsi_get_memory(struct beiscsi_hba *phba) 23156733b39aSJayamohan Kallickal { 23166733b39aSJayamohan Kallickal beiscsi_find_mem_req(phba); 23176733b39aSJayamohan Kallickal return beiscsi_alloc_mem(phba); 23186733b39aSJayamohan Kallickal } 23196733b39aSJayamohan Kallickal 23206733b39aSJayamohan Kallickal static void iscsi_init_global_templates(struct beiscsi_hba *phba) 23216733b39aSJayamohan Kallickal { 23226733b39aSJayamohan Kallickal struct pdu_data_out *pdata_out; 23236733b39aSJayamohan Kallickal struct pdu_nop_out *pnop_out; 23246733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 23256733b39aSJayamohan Kallickal 23266733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 23276733b39aSJayamohan Kallickal mem_descr += ISCSI_MEM_GLOBAL_HEADER; 23286733b39aSJayamohan Kallickal pdata_out = 23296733b39aSJayamohan Kallickal (struct pdu_data_out *)mem_descr->mem_array[0].virtual_address; 23306733b39aSJayamohan Kallickal memset(pdata_out, 0, BE_ISCSI_PDU_HEADER_SIZE); 23316733b39aSJayamohan Kallickal 23326733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, opcode, pdata_out, 23336733b39aSJayamohan Kallickal IIOC_SCSI_DATA); 23346733b39aSJayamohan Kallickal 23356733b39aSJayamohan Kallickal pnop_out = 23366733b39aSJayamohan Kallickal (struct pdu_nop_out *)((unsigned char *)mem_descr->mem_array[0]. 23376733b39aSJayamohan Kallickal virtual_address + BE_ISCSI_PDU_HEADER_SIZE); 23386733b39aSJayamohan Kallickal 23396733b39aSJayamohan Kallickal memset(pnop_out, 0, BE_ISCSI_PDU_HEADER_SIZE); 23406733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, ttt, pnop_out, 0xFFFFFFFF); 23416733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, f_bit, pnop_out, 1); 23426733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, i_bit, pnop_out, 0); 23436733b39aSJayamohan Kallickal } 23446733b39aSJayamohan Kallickal 23456733b39aSJayamohan Kallickal static void beiscsi_init_wrb_handle(struct beiscsi_hba *phba) 23466733b39aSJayamohan Kallickal { 23476733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr_wrbh, *mem_descr_wrb; 23486733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 23496733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 23506733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 23516733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb; 23526733b39aSJayamohan Kallickal unsigned int num_cxn_wrbh; 23536733b39aSJayamohan Kallickal unsigned int num_cxn_wrb, j, idx, index; 23546733b39aSJayamohan Kallickal 23556733b39aSJayamohan Kallickal mem_descr_wrbh = phba->init_mem; 23566733b39aSJayamohan Kallickal mem_descr_wrbh += HWI_MEM_WRBH; 23576733b39aSJayamohan Kallickal 23586733b39aSJayamohan Kallickal mem_descr_wrb = phba->init_mem; 23596733b39aSJayamohan Kallickal mem_descr_wrb += HWI_MEM_WRB; 23606733b39aSJayamohan Kallickal 23616733b39aSJayamohan Kallickal idx = 0; 23626733b39aSJayamohan Kallickal pwrb_handle = mem_descr_wrbh->mem_array[idx].virtual_address; 23636733b39aSJayamohan Kallickal num_cxn_wrbh = ((mem_descr_wrbh->mem_array[idx].size) / 23646733b39aSJayamohan Kallickal ((sizeof(struct wrb_handle)) * 23656733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn)); 23666733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 23676733b39aSJayamohan Kallickal 23686733b39aSJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) { 23696733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 23706733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base = 23716733b39aSJayamohan Kallickal kzalloc(sizeof(struct wrb_handle *) * 23726733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn, GFP_KERNEL); 23736733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd = 23746733b39aSJayamohan Kallickal kzalloc(sizeof(struct wrb_handle *) * 23756733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn, GFP_KERNEL); 23766733b39aSJayamohan Kallickal if (num_cxn_wrbh) { 23776733b39aSJayamohan Kallickal pwrb_context->alloc_index = 0; 23786733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available = 0; 23796733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 23806733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base[j] = pwrb_handle; 23816733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd[j] = 23826733b39aSJayamohan Kallickal pwrb_handle; 23836733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available++; 2384bfead3b2SJayamohan Kallickal pwrb_handle->wrb_index = j; 23856733b39aSJayamohan Kallickal pwrb_handle++; 23866733b39aSJayamohan Kallickal } 23876733b39aSJayamohan Kallickal pwrb_context->free_index = 0; 23886733b39aSJayamohan Kallickal num_cxn_wrbh--; 23896733b39aSJayamohan Kallickal } else { 23906733b39aSJayamohan Kallickal idx++; 23916733b39aSJayamohan Kallickal pwrb_handle = 23926733b39aSJayamohan Kallickal mem_descr_wrbh->mem_array[idx].virtual_address; 23936733b39aSJayamohan Kallickal num_cxn_wrbh = 23946733b39aSJayamohan Kallickal ((mem_descr_wrbh->mem_array[idx].size) / 23956733b39aSJayamohan Kallickal ((sizeof(struct wrb_handle)) * 23966733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn)); 23976733b39aSJayamohan Kallickal pwrb_context->alloc_index = 0; 23986733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 23996733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base[j] = pwrb_handle; 24006733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd[j] = 24016733b39aSJayamohan Kallickal pwrb_handle; 24026733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available++; 2403bfead3b2SJayamohan Kallickal pwrb_handle->wrb_index = j; 24046733b39aSJayamohan Kallickal pwrb_handle++; 24056733b39aSJayamohan Kallickal } 24066733b39aSJayamohan Kallickal pwrb_context->free_index = 0; 24076733b39aSJayamohan Kallickal num_cxn_wrbh--; 24086733b39aSJayamohan Kallickal } 24096733b39aSJayamohan Kallickal } 24106733b39aSJayamohan Kallickal idx = 0; 24116733b39aSJayamohan Kallickal pwrb = mem_descr_wrb->mem_array[idx].virtual_address; 24127c56533cSJayamohan Kallickal num_cxn_wrb = (mem_descr_wrb->mem_array[idx].size) / 24137c56533cSJayamohan Kallickal ((sizeof(struct iscsi_wrb) * 24147c56533cSJayamohan Kallickal phba->params.wrbs_per_cxn)); 2415ed58ea2aSJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) { 24166733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 24176733b39aSJayamohan Kallickal if (num_cxn_wrb) { 24186733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 24196733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[j]; 24206733b39aSJayamohan Kallickal pwrb_handle->pwrb = pwrb; 24216733b39aSJayamohan Kallickal pwrb++; 24226733b39aSJayamohan Kallickal } 24236733b39aSJayamohan Kallickal num_cxn_wrb--; 24246733b39aSJayamohan Kallickal } else { 24256733b39aSJayamohan Kallickal idx++; 24266733b39aSJayamohan Kallickal pwrb = mem_descr_wrb->mem_array[idx].virtual_address; 24277c56533cSJayamohan Kallickal num_cxn_wrb = (mem_descr_wrb->mem_array[idx].size) / 24287c56533cSJayamohan Kallickal ((sizeof(struct iscsi_wrb) * 24297c56533cSJayamohan Kallickal phba->params.wrbs_per_cxn)); 24306733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 24316733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[j]; 24326733b39aSJayamohan Kallickal pwrb_handle->pwrb = pwrb; 24336733b39aSJayamohan Kallickal pwrb++; 24346733b39aSJayamohan Kallickal } 24356733b39aSJayamohan Kallickal num_cxn_wrb--; 24366733b39aSJayamohan Kallickal } 24376733b39aSJayamohan Kallickal } 24386733b39aSJayamohan Kallickal } 24396733b39aSJayamohan Kallickal 24406733b39aSJayamohan Kallickal static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba) 24416733b39aSJayamohan Kallickal { 24426733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 24436733b39aSJayamohan Kallickal struct hba_parameters *p = &phba->params; 24446733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 24456733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_header_h, *pasync_data_h; 24466733b39aSJayamohan Kallickal unsigned int index; 24476733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 24486733b39aSJayamohan Kallickal 24496733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 24506733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_PDU_CONTEXT; 24516733b39aSJayamohan Kallickal 24526733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 24536733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt->pasync_ctx = (struct hwi_async_pdu_context *) 24546733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 24556733b39aSJayamohan Kallickal pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx; 24566733b39aSJayamohan Kallickal memset(pasync_ctx, 0, sizeof(*pasync_ctx)); 24576733b39aSJayamohan Kallickal 24586733b39aSJayamohan Kallickal pasync_ctx->async_header.num_entries = p->asyncpdus_per_ctrl; 24596733b39aSJayamohan Kallickal pasync_ctx->async_header.buffer_size = p->defpdu_hdr_sz; 24606733b39aSJayamohan Kallickal pasync_ctx->async_data.buffer_size = p->defpdu_data_sz; 24616733b39aSJayamohan Kallickal pasync_ctx->async_data.num_entries = p->asyncpdus_per_ctrl; 24626733b39aSJayamohan Kallickal 24636733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 24646733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_BUF; 24656733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 24666733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 24676733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_BUF" 24686733b39aSJayamohan Kallickal "va=%p\n", mem_descr->mem_array[0].virtual_address); 24696733b39aSJayamohan Kallickal } else 24706733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 24716733b39aSJayamohan Kallickal "No Virtual address\n"); 24726733b39aSJayamohan Kallickal 24736733b39aSJayamohan Kallickal pasync_ctx->async_header.va_base = 24746733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 24756733b39aSJayamohan Kallickal 24766733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address = 24776733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a64.address; 24786733b39aSJayamohan Kallickal 24796733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 24806733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_RING; 24816733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 24826733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 24836733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_RING" 24846733b39aSJayamohan Kallickal "va=%p\n", mem_descr->mem_array[0].virtual_address); 24856733b39aSJayamohan Kallickal } else 24866733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 24876733b39aSJayamohan Kallickal "No Virtual address\n"); 24886733b39aSJayamohan Kallickal pasync_ctx->async_header.ring_base = 24896733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 24906733b39aSJayamohan Kallickal 24916733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 24926733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE; 24936733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 24946733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 24956733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_HANDLE" 24966733b39aSJayamohan Kallickal "va=%p\n", mem_descr->mem_array[0].virtual_address); 24976733b39aSJayamohan Kallickal } else 24986733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 24996733b39aSJayamohan Kallickal "No Virtual address\n"); 25006733b39aSJayamohan Kallickal 25016733b39aSJayamohan Kallickal pasync_ctx->async_header.handle_base = 25026733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 25036733b39aSJayamohan Kallickal pasync_ctx->async_header.writables = 0; 25046733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_header.free_list); 25056733b39aSJayamohan Kallickal 25066733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 25076733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_BUF; 25086733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 25096733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 25106733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_BUF" 25116733b39aSJayamohan Kallickal "va=%p\n", mem_descr->mem_array[0].virtual_address); 25126733b39aSJayamohan Kallickal } else 25136733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 25146733b39aSJayamohan Kallickal "No Virtual address\n"); 25156733b39aSJayamohan Kallickal pasync_ctx->async_data.va_base = 25166733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 25176733b39aSJayamohan Kallickal pasync_ctx->async_data.pa_base.u.a64.address = 25186733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a64.address; 25196733b39aSJayamohan Kallickal 25206733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 25216733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_RING; 25226733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 25236733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 25246733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_RING" 25256733b39aSJayamohan Kallickal "va=%p\n", mem_descr->mem_array[0].virtual_address); 25266733b39aSJayamohan Kallickal } else 25276733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 25286733b39aSJayamohan Kallickal "No Virtual address\n"); 25296733b39aSJayamohan Kallickal 25306733b39aSJayamohan Kallickal pasync_ctx->async_data.ring_base = 25316733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 25326733b39aSJayamohan Kallickal 25336733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 25346733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_HANDLE; 25356733b39aSJayamohan Kallickal if (!mem_descr->mem_array[0].virtual_address) 25366733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 25376733b39aSJayamohan Kallickal "No Virtual address\n"); 25386733b39aSJayamohan Kallickal 25396733b39aSJayamohan Kallickal pasync_ctx->async_data.handle_base = 25406733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 25416733b39aSJayamohan Kallickal pasync_ctx->async_data.writables = 0; 25426733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_data.free_list); 25436733b39aSJayamohan Kallickal 25446733b39aSJayamohan Kallickal pasync_header_h = 25456733b39aSJayamohan Kallickal (struct async_pdu_handle *)pasync_ctx->async_header.handle_base; 25466733b39aSJayamohan Kallickal pasync_data_h = 25476733b39aSJayamohan Kallickal (struct async_pdu_handle *)pasync_ctx->async_data.handle_base; 25486733b39aSJayamohan Kallickal 25496733b39aSJayamohan Kallickal for (index = 0; index < p->asyncpdus_per_ctrl; index++) { 25506733b39aSJayamohan Kallickal pasync_header_h->cri = -1; 25516733b39aSJayamohan Kallickal pasync_header_h->index = (char)index; 25526733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_header_h->link); 25536733b39aSJayamohan Kallickal pasync_header_h->pbuffer = 25546733b39aSJayamohan Kallickal (void *)((unsigned long) 25556733b39aSJayamohan Kallickal (pasync_ctx->async_header.va_base) + 25566733b39aSJayamohan Kallickal (p->defpdu_hdr_sz * index)); 25576733b39aSJayamohan Kallickal 25586733b39aSJayamohan Kallickal pasync_header_h->pa.u.a64.address = 25596733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address + 25606733b39aSJayamohan Kallickal (p->defpdu_hdr_sz * index); 25616733b39aSJayamohan Kallickal 25626733b39aSJayamohan Kallickal list_add_tail(&pasync_header_h->link, 25636733b39aSJayamohan Kallickal &pasync_ctx->async_header.free_list); 25646733b39aSJayamohan Kallickal pasync_header_h++; 25656733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries++; 25666733b39aSJayamohan Kallickal pasync_ctx->async_header.writables++; 25676733b39aSJayamohan Kallickal 25686733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index].wait_queue.list); 25696733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index]. 25706733b39aSJayamohan Kallickal header_busy_list); 25716733b39aSJayamohan Kallickal pasync_data_h->cri = -1; 25726733b39aSJayamohan Kallickal pasync_data_h->index = (char)index; 25736733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_data_h->link); 25746733b39aSJayamohan Kallickal pasync_data_h->pbuffer = 25756733b39aSJayamohan Kallickal (void *)((unsigned long) 25766733b39aSJayamohan Kallickal (pasync_ctx->async_data.va_base) + 25776733b39aSJayamohan Kallickal (p->defpdu_data_sz * index)); 25786733b39aSJayamohan Kallickal 25796733b39aSJayamohan Kallickal pasync_data_h->pa.u.a64.address = 25806733b39aSJayamohan Kallickal pasync_ctx->async_data.pa_base.u.a64.address + 25816733b39aSJayamohan Kallickal (p->defpdu_data_sz * index); 25826733b39aSJayamohan Kallickal 25836733b39aSJayamohan Kallickal list_add_tail(&pasync_data_h->link, 25846733b39aSJayamohan Kallickal &pasync_ctx->async_data.free_list); 25856733b39aSJayamohan Kallickal pasync_data_h++; 25866733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries++; 25876733b39aSJayamohan Kallickal pasync_ctx->async_data.writables++; 25886733b39aSJayamohan Kallickal 25896733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index].data_busy_list); 25906733b39aSJayamohan Kallickal } 25916733b39aSJayamohan Kallickal 25926733b39aSJayamohan Kallickal pasync_ctx->async_header.host_write_ptr = 0; 25936733b39aSJayamohan Kallickal pasync_ctx->async_header.ep_read_ptr = -1; 25946733b39aSJayamohan Kallickal pasync_ctx->async_data.host_write_ptr = 0; 25956733b39aSJayamohan Kallickal pasync_ctx->async_data.ep_read_ptr = -1; 25966733b39aSJayamohan Kallickal } 25976733b39aSJayamohan Kallickal 25986733b39aSJayamohan Kallickal static int 25996733b39aSJayamohan Kallickal be_sgl_create_contiguous(void *virtual_address, 26006733b39aSJayamohan Kallickal u64 physical_address, u32 length, 26016733b39aSJayamohan Kallickal struct be_dma_mem *sgl) 26026733b39aSJayamohan Kallickal { 26036733b39aSJayamohan Kallickal WARN_ON(!virtual_address); 26046733b39aSJayamohan Kallickal WARN_ON(!physical_address); 26056733b39aSJayamohan Kallickal WARN_ON(!length > 0); 26066733b39aSJayamohan Kallickal WARN_ON(!sgl); 26076733b39aSJayamohan Kallickal 26086733b39aSJayamohan Kallickal sgl->va = virtual_address; 2609457ff3b7SJayamohan Kallickal sgl->dma = (unsigned long)physical_address; 26106733b39aSJayamohan Kallickal sgl->size = length; 26116733b39aSJayamohan Kallickal 26126733b39aSJayamohan Kallickal return 0; 26136733b39aSJayamohan Kallickal } 26146733b39aSJayamohan Kallickal 26156733b39aSJayamohan Kallickal static void be_sgl_destroy_contiguous(struct be_dma_mem *sgl) 26166733b39aSJayamohan Kallickal { 26176733b39aSJayamohan Kallickal memset(sgl, 0, sizeof(*sgl)); 26186733b39aSJayamohan Kallickal } 26196733b39aSJayamohan Kallickal 26206733b39aSJayamohan Kallickal static void 26216733b39aSJayamohan Kallickal hwi_build_be_sgl_arr(struct beiscsi_hba *phba, 26226733b39aSJayamohan Kallickal struct mem_array *pmem, struct be_dma_mem *sgl) 26236733b39aSJayamohan Kallickal { 26246733b39aSJayamohan Kallickal if (sgl->va) 26256733b39aSJayamohan Kallickal be_sgl_destroy_contiguous(sgl); 26266733b39aSJayamohan Kallickal 26276733b39aSJayamohan Kallickal be_sgl_create_contiguous(pmem->virtual_address, 26286733b39aSJayamohan Kallickal pmem->bus_address.u.a64.address, 26296733b39aSJayamohan Kallickal pmem->size, sgl); 26306733b39aSJayamohan Kallickal } 26316733b39aSJayamohan Kallickal 26326733b39aSJayamohan Kallickal static void 26336733b39aSJayamohan Kallickal hwi_build_be_sgl_by_offset(struct beiscsi_hba *phba, 26346733b39aSJayamohan Kallickal struct mem_array *pmem, struct be_dma_mem *sgl) 26356733b39aSJayamohan Kallickal { 26366733b39aSJayamohan Kallickal if (sgl->va) 26376733b39aSJayamohan Kallickal be_sgl_destroy_contiguous(sgl); 26386733b39aSJayamohan Kallickal 26396733b39aSJayamohan Kallickal be_sgl_create_contiguous((unsigned char *)pmem->virtual_address, 26406733b39aSJayamohan Kallickal pmem->bus_address.u.a64.address, 26416733b39aSJayamohan Kallickal pmem->size, sgl); 26426733b39aSJayamohan Kallickal } 26436733b39aSJayamohan Kallickal 26446733b39aSJayamohan Kallickal static int be_fill_queue(struct be_queue_info *q, 26456733b39aSJayamohan Kallickal u16 len, u16 entry_size, void *vaddress) 26466733b39aSJayamohan Kallickal { 26476733b39aSJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 26486733b39aSJayamohan Kallickal 26496733b39aSJayamohan Kallickal memset(q, 0, sizeof(*q)); 26506733b39aSJayamohan Kallickal q->len = len; 26516733b39aSJayamohan Kallickal q->entry_size = entry_size; 26526733b39aSJayamohan Kallickal mem->size = len * entry_size; 26536733b39aSJayamohan Kallickal mem->va = vaddress; 26546733b39aSJayamohan Kallickal if (!mem->va) 26556733b39aSJayamohan Kallickal return -ENOMEM; 26566733b39aSJayamohan Kallickal memset(mem->va, 0, mem->size); 26576733b39aSJayamohan Kallickal return 0; 26586733b39aSJayamohan Kallickal } 26596733b39aSJayamohan Kallickal 2660bfead3b2SJayamohan Kallickal static int beiscsi_create_eqs(struct beiscsi_hba *phba, 26616733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context) 26626733b39aSJayamohan Kallickal { 2663bfead3b2SJayamohan Kallickal unsigned int i, num_eq_pages; 2664bfead3b2SJayamohan Kallickal int ret, eq_for_mcc; 26656733b39aSJayamohan Kallickal struct be_queue_info *eq; 26666733b39aSJayamohan Kallickal struct be_dma_mem *mem; 26676733b39aSJayamohan Kallickal void *eq_vaddress; 2668bfead3b2SJayamohan Kallickal dma_addr_t paddr; 26696733b39aSJayamohan Kallickal 2670bfead3b2SJayamohan Kallickal num_eq_pages = PAGES_REQUIRED(phba->params.num_eq_entries * \ 2671bfead3b2SJayamohan Kallickal sizeof(struct be_eq_entry)); 2672bfead3b2SJayamohan Kallickal 2673bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 2674bfead3b2SJayamohan Kallickal eq_for_mcc = 1; 2675bfead3b2SJayamohan Kallickal else 2676bfead3b2SJayamohan Kallickal eq_for_mcc = 0; 2677bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) { 2678bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 26796733b39aSJayamohan Kallickal mem = &eq->dma_mem; 2680bfead3b2SJayamohan Kallickal phwi_context->be_eq[i].phba = phba; 2681bfead3b2SJayamohan Kallickal eq_vaddress = pci_alloc_consistent(phba->pcidev, 2682bfead3b2SJayamohan Kallickal num_eq_pages * PAGE_SIZE, 2683bfead3b2SJayamohan Kallickal &paddr); 2684bfead3b2SJayamohan Kallickal if (!eq_vaddress) 2685bfead3b2SJayamohan Kallickal goto create_eq_error; 26866733b39aSJayamohan Kallickal 2687bfead3b2SJayamohan Kallickal mem->va = eq_vaddress; 26886733b39aSJayamohan Kallickal ret = be_fill_queue(eq, phba->params.num_eq_entries, 26896733b39aSJayamohan Kallickal sizeof(struct be_eq_entry), eq_vaddress); 26906733b39aSJayamohan Kallickal if (ret) { 26916733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 26926733b39aSJayamohan Kallickal "be_fill_queue Failed for EQ\n"); 2693bfead3b2SJayamohan Kallickal goto create_eq_error; 26946733b39aSJayamohan Kallickal } 26956733b39aSJayamohan Kallickal 2696bfead3b2SJayamohan Kallickal mem->dma = paddr; 26976733b39aSJayamohan Kallickal ret = beiscsi_cmd_eq_create(&phba->ctrl, eq, 2698bfead3b2SJayamohan Kallickal phwi_context->cur_eqd); 26996733b39aSJayamohan Kallickal if (ret) { 2700bfead3b2SJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 2701bfead3b2SJayamohan Kallickal "beiscsi_cmd_eq_create" 27026733b39aSJayamohan Kallickal "Failedfor EQ\n"); 2703bfead3b2SJayamohan Kallickal goto create_eq_error; 2704bfead3b2SJayamohan Kallickal } 2705bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "eqid = %d\n", phwi_context->be_eq[i].q.id); 2706bfead3b2SJayamohan Kallickal } 2707bfead3b2SJayamohan Kallickal return 0; 2708bfead3b2SJayamohan Kallickal create_eq_error: 2709bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + 1); i++) { 2710bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 2711bfead3b2SJayamohan Kallickal mem = &eq->dma_mem; 2712bfead3b2SJayamohan Kallickal if (mem->va) 2713bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, num_eq_pages 2714bfead3b2SJayamohan Kallickal * PAGE_SIZE, 2715bfead3b2SJayamohan Kallickal mem->va, mem->dma); 2716bfead3b2SJayamohan Kallickal } 27176733b39aSJayamohan Kallickal return ret; 27186733b39aSJayamohan Kallickal } 27196733b39aSJayamohan Kallickal 2720bfead3b2SJayamohan Kallickal static int beiscsi_create_cqs(struct beiscsi_hba *phba, 27216733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context) 27226733b39aSJayamohan Kallickal { 2723bfead3b2SJayamohan Kallickal unsigned int i, num_cq_pages; 27246733b39aSJayamohan Kallickal int ret; 27256733b39aSJayamohan Kallickal struct be_queue_info *cq, *eq; 27266733b39aSJayamohan Kallickal struct be_dma_mem *mem; 2727bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 27286733b39aSJayamohan Kallickal void *cq_vaddress; 2729bfead3b2SJayamohan Kallickal dma_addr_t paddr; 27306733b39aSJayamohan Kallickal 2731bfead3b2SJayamohan Kallickal num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \ 2732bfead3b2SJayamohan Kallickal sizeof(struct sol_cqe)); 2733bfead3b2SJayamohan Kallickal 2734bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 2735bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[i]; 2736bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 2737bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 2738bfead3b2SJayamohan Kallickal pbe_eq->cq = cq; 2739bfead3b2SJayamohan Kallickal pbe_eq->phba = phba; 27406733b39aSJayamohan Kallickal mem = &cq->dma_mem; 2741bfead3b2SJayamohan Kallickal cq_vaddress = pci_alloc_consistent(phba->pcidev, 2742bfead3b2SJayamohan Kallickal num_cq_pages * PAGE_SIZE, 2743bfead3b2SJayamohan Kallickal &paddr); 2744bfead3b2SJayamohan Kallickal if (!cq_vaddress) 2745bfead3b2SJayamohan Kallickal goto create_cq_error; 27467da50879SJayamohan Kallickal ret = be_fill_queue(cq, phba->params.num_cq_entries, 27476733b39aSJayamohan Kallickal sizeof(struct sol_cqe), cq_vaddress); 27486733b39aSJayamohan Kallickal if (ret) { 27496733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 27506733b39aSJayamohan Kallickal "be_fill_queue Failed for ISCSI CQ\n"); 2751bfead3b2SJayamohan Kallickal goto create_cq_error; 27526733b39aSJayamohan Kallickal } 27536733b39aSJayamohan Kallickal 2754bfead3b2SJayamohan Kallickal mem->dma = paddr; 2755bfead3b2SJayamohan Kallickal ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false, 2756bfead3b2SJayamohan Kallickal false, 0); 27576733b39aSJayamohan Kallickal if (ret) { 27586733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 2759bfead3b2SJayamohan Kallickal "beiscsi_cmd_eq_create" 2760bfead3b2SJayamohan Kallickal "Failed for ISCSI CQ\n"); 2761bfead3b2SJayamohan Kallickal goto create_cq_error; 27626733b39aSJayamohan Kallickal } 2763bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "iscsi cq_id is %d for eq_id %d\n", 2764bfead3b2SJayamohan Kallickal cq->id, eq->id); 27656733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "ISCSI CQ CREATED\n"); 2766bfead3b2SJayamohan Kallickal } 27676733b39aSJayamohan Kallickal return 0; 2768bfead3b2SJayamohan Kallickal 2769bfead3b2SJayamohan Kallickal create_cq_error: 2770bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 2771bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[i]; 2772bfead3b2SJayamohan Kallickal mem = &cq->dma_mem; 2773bfead3b2SJayamohan Kallickal if (mem->va) 2774bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, num_cq_pages 2775bfead3b2SJayamohan Kallickal * PAGE_SIZE, 2776bfead3b2SJayamohan Kallickal mem->va, mem->dma); 2777bfead3b2SJayamohan Kallickal } 2778bfead3b2SJayamohan Kallickal return ret; 2779bfead3b2SJayamohan Kallickal 27806733b39aSJayamohan Kallickal } 27816733b39aSJayamohan Kallickal 27826733b39aSJayamohan Kallickal static int 27836733b39aSJayamohan Kallickal beiscsi_create_def_hdr(struct beiscsi_hba *phba, 27846733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 27856733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr, 27866733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz) 27876733b39aSJayamohan Kallickal { 27886733b39aSJayamohan Kallickal unsigned int idx; 27896733b39aSJayamohan Kallickal int ret; 27906733b39aSJayamohan Kallickal struct be_queue_info *dq, *cq; 27916733b39aSJayamohan Kallickal struct be_dma_mem *mem; 27926733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 27936733b39aSJayamohan Kallickal void *dq_vaddress; 27946733b39aSJayamohan Kallickal 27956733b39aSJayamohan Kallickal idx = 0; 27966733b39aSJayamohan Kallickal dq = &phwi_context->be_def_hdrq; 2797bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 27986733b39aSJayamohan Kallickal mem = &dq->dma_mem; 27996733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 28006733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_RING; 28016733b39aSJayamohan Kallickal dq_vaddress = mem_descr->mem_array[idx].virtual_address; 28026733b39aSJayamohan Kallickal ret = be_fill_queue(dq, mem_descr->mem_array[0].size / 28036733b39aSJayamohan Kallickal sizeof(struct phys_addr), 28046733b39aSJayamohan Kallickal sizeof(struct phys_addr), dq_vaddress); 28056733b39aSJayamohan Kallickal if (ret) { 28066733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 28076733b39aSJayamohan Kallickal "be_fill_queue Failed for DEF PDU HDR\n"); 28086733b39aSJayamohan Kallickal return ret; 28096733b39aSJayamohan Kallickal } 2810457ff3b7SJayamohan Kallickal mem->dma = (unsigned long)mem_descr->mem_array[idx]. 2811457ff3b7SJayamohan Kallickal bus_address.u.a64.address; 28126733b39aSJayamohan Kallickal ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dq, 28136733b39aSJayamohan Kallickal def_pdu_ring_sz, 28146733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz); 28156733b39aSJayamohan Kallickal if (ret) { 28166733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 28176733b39aSJayamohan Kallickal "be_cmd_create_default_pdu_queue Failed DEFHDR\n"); 28186733b39aSJayamohan Kallickal return ret; 28196733b39aSJayamohan Kallickal } 28206733b39aSJayamohan Kallickal phwi_ctrlr->default_pdu_hdr.id = phwi_context->be_def_hdrq.id; 28216733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "iscsi def pdu id is %d\n", 28226733b39aSJayamohan Kallickal phwi_context->be_def_hdrq.id); 28236733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, 1); 28246733b39aSJayamohan Kallickal return 0; 28256733b39aSJayamohan Kallickal } 28266733b39aSJayamohan Kallickal 28276733b39aSJayamohan Kallickal static int 28286733b39aSJayamohan Kallickal beiscsi_create_def_data(struct beiscsi_hba *phba, 28296733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 28306733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr, 28316733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz) 28326733b39aSJayamohan Kallickal { 28336733b39aSJayamohan Kallickal unsigned int idx; 28346733b39aSJayamohan Kallickal int ret; 28356733b39aSJayamohan Kallickal struct be_queue_info *dataq, *cq; 28366733b39aSJayamohan Kallickal struct be_dma_mem *mem; 28376733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 28386733b39aSJayamohan Kallickal void *dq_vaddress; 28396733b39aSJayamohan Kallickal 28406733b39aSJayamohan Kallickal idx = 0; 28416733b39aSJayamohan Kallickal dataq = &phwi_context->be_def_dataq; 2842bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 28436733b39aSJayamohan Kallickal mem = &dataq->dma_mem; 28446733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 28456733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_RING; 28466733b39aSJayamohan Kallickal dq_vaddress = mem_descr->mem_array[idx].virtual_address; 28476733b39aSJayamohan Kallickal ret = be_fill_queue(dataq, mem_descr->mem_array[0].size / 28486733b39aSJayamohan Kallickal sizeof(struct phys_addr), 28496733b39aSJayamohan Kallickal sizeof(struct phys_addr), dq_vaddress); 28506733b39aSJayamohan Kallickal if (ret) { 28516733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 28526733b39aSJayamohan Kallickal "be_fill_queue Failed for DEF PDU DATA\n"); 28536733b39aSJayamohan Kallickal return ret; 28546733b39aSJayamohan Kallickal } 2855457ff3b7SJayamohan Kallickal mem->dma = (unsigned long)mem_descr->mem_array[idx]. 2856457ff3b7SJayamohan Kallickal bus_address.u.a64.address; 28576733b39aSJayamohan Kallickal ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dataq, 28586733b39aSJayamohan Kallickal def_pdu_ring_sz, 28596733b39aSJayamohan Kallickal phba->params.defpdu_data_sz); 28606733b39aSJayamohan Kallickal if (ret) { 28616733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 28626733b39aSJayamohan Kallickal "be_cmd_create_default_pdu_queue Failed" 28636733b39aSJayamohan Kallickal " for DEF PDU DATA\n"); 28646733b39aSJayamohan Kallickal return ret; 28656733b39aSJayamohan Kallickal } 28666733b39aSJayamohan Kallickal phwi_ctrlr->default_pdu_data.id = phwi_context->be_def_dataq.id; 28676733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "iscsi def data id is %d\n", 28686733b39aSJayamohan Kallickal phwi_context->be_def_dataq.id); 28696733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, 0); 28706733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "DEFAULT PDU DATA RING CREATED\n"); 28716733b39aSJayamohan Kallickal return 0; 28726733b39aSJayamohan Kallickal } 28736733b39aSJayamohan Kallickal 28746733b39aSJayamohan Kallickal static int 28756733b39aSJayamohan Kallickal beiscsi_post_pages(struct beiscsi_hba *phba) 28766733b39aSJayamohan Kallickal { 28776733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 28786733b39aSJayamohan Kallickal struct mem_array *pm_arr; 28796733b39aSJayamohan Kallickal unsigned int page_offset, i; 28806733b39aSJayamohan Kallickal struct be_dma_mem sgl; 28816733b39aSJayamohan Kallickal int status; 28826733b39aSJayamohan Kallickal 28836733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 28846733b39aSJayamohan Kallickal mem_descr += HWI_MEM_SGE; 28856733b39aSJayamohan Kallickal pm_arr = mem_descr->mem_array; 28866733b39aSJayamohan Kallickal 28876733b39aSJayamohan Kallickal page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io * 28886733b39aSJayamohan Kallickal phba->fw_config.iscsi_icd_start) / PAGE_SIZE; 28896733b39aSJayamohan Kallickal for (i = 0; i < mem_descr->num_elements; i++) { 28906733b39aSJayamohan Kallickal hwi_build_be_sgl_arr(phba, pm_arr, &sgl); 28916733b39aSJayamohan Kallickal status = be_cmd_iscsi_post_sgl_pages(&phba->ctrl, &sgl, 28926733b39aSJayamohan Kallickal page_offset, 28936733b39aSJayamohan Kallickal (pm_arr->size / PAGE_SIZE)); 28946733b39aSJayamohan Kallickal page_offset += pm_arr->size / PAGE_SIZE; 28956733b39aSJayamohan Kallickal if (status != 0) { 28966733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 28976733b39aSJayamohan Kallickal "post sgl failed.\n"); 28986733b39aSJayamohan Kallickal return status; 28996733b39aSJayamohan Kallickal } 29006733b39aSJayamohan Kallickal pm_arr++; 29016733b39aSJayamohan Kallickal } 29026733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "POSTED PAGES\n"); 29036733b39aSJayamohan Kallickal return 0; 29046733b39aSJayamohan Kallickal } 29056733b39aSJayamohan Kallickal 2906bfead3b2SJayamohan Kallickal static void be_queue_free(struct beiscsi_hba *phba, struct be_queue_info *q) 2907bfead3b2SJayamohan Kallickal { 2908bfead3b2SJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 2909bfead3b2SJayamohan Kallickal if (mem->va) 2910bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, mem->size, 2911bfead3b2SJayamohan Kallickal mem->va, mem->dma); 2912bfead3b2SJayamohan Kallickal } 2913bfead3b2SJayamohan Kallickal 2914bfead3b2SJayamohan Kallickal static int be_queue_alloc(struct beiscsi_hba *phba, struct be_queue_info *q, 2915bfead3b2SJayamohan Kallickal u16 len, u16 entry_size) 2916bfead3b2SJayamohan Kallickal { 2917bfead3b2SJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 2918bfead3b2SJayamohan Kallickal 2919bfead3b2SJayamohan Kallickal memset(q, 0, sizeof(*q)); 2920bfead3b2SJayamohan Kallickal q->len = len; 2921bfead3b2SJayamohan Kallickal q->entry_size = entry_size; 2922bfead3b2SJayamohan Kallickal mem->size = len * entry_size; 2923bfead3b2SJayamohan Kallickal mem->va = pci_alloc_consistent(phba->pcidev, mem->size, &mem->dma); 2924bfead3b2SJayamohan Kallickal if (!mem->va) 2925d3ad2bb3SJayamohan Kallickal return -ENOMEM; 2926bfead3b2SJayamohan Kallickal memset(mem->va, 0, mem->size); 2927bfead3b2SJayamohan Kallickal return 0; 2928bfead3b2SJayamohan Kallickal } 2929bfead3b2SJayamohan Kallickal 29306733b39aSJayamohan Kallickal static int 29316733b39aSJayamohan Kallickal beiscsi_create_wrb_rings(struct beiscsi_hba *phba, 29326733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 29336733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr) 29346733b39aSJayamohan Kallickal { 29356733b39aSJayamohan Kallickal unsigned int wrb_mem_index, offset, size, num_wrb_rings; 29366733b39aSJayamohan Kallickal u64 pa_addr_lo; 29376733b39aSJayamohan Kallickal unsigned int idx, num, i; 29386733b39aSJayamohan Kallickal struct mem_array *pwrb_arr; 29396733b39aSJayamohan Kallickal void *wrb_vaddr; 29406733b39aSJayamohan Kallickal struct be_dma_mem sgl; 29416733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 29426733b39aSJayamohan Kallickal int status; 29436733b39aSJayamohan Kallickal 29446733b39aSJayamohan Kallickal idx = 0; 29456733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 29466733b39aSJayamohan Kallickal mem_descr += HWI_MEM_WRB; 29476733b39aSJayamohan Kallickal pwrb_arr = kmalloc(sizeof(*pwrb_arr) * phba->params.cxns_per_ctrl, 29486733b39aSJayamohan Kallickal GFP_KERNEL); 29496733b39aSJayamohan Kallickal if (!pwrb_arr) { 29506733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 29516733b39aSJayamohan Kallickal "Memory alloc failed in create wrb ring.\n"); 29526733b39aSJayamohan Kallickal return -ENOMEM; 29536733b39aSJayamohan Kallickal } 29546733b39aSJayamohan Kallickal wrb_vaddr = mem_descr->mem_array[idx].virtual_address; 29556733b39aSJayamohan Kallickal pa_addr_lo = mem_descr->mem_array[idx].bus_address.u.a64.address; 29566733b39aSJayamohan Kallickal num_wrb_rings = mem_descr->mem_array[idx].size / 29576733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn * sizeof(struct iscsi_wrb)); 29586733b39aSJayamohan Kallickal 29596733b39aSJayamohan Kallickal for (num = 0; num < phba->params.cxns_per_ctrl; num++) { 29606733b39aSJayamohan Kallickal if (num_wrb_rings) { 29616733b39aSJayamohan Kallickal pwrb_arr[num].virtual_address = wrb_vaddr; 29626733b39aSJayamohan Kallickal pwrb_arr[num].bus_address.u.a64.address = pa_addr_lo; 29636733b39aSJayamohan Kallickal pwrb_arr[num].size = phba->params.wrbs_per_cxn * 29646733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb); 29656733b39aSJayamohan Kallickal wrb_vaddr += pwrb_arr[num].size; 29666733b39aSJayamohan Kallickal pa_addr_lo += pwrb_arr[num].size; 29676733b39aSJayamohan Kallickal num_wrb_rings--; 29686733b39aSJayamohan Kallickal } else { 29696733b39aSJayamohan Kallickal idx++; 29706733b39aSJayamohan Kallickal wrb_vaddr = mem_descr->mem_array[idx].virtual_address; 29716733b39aSJayamohan Kallickal pa_addr_lo = mem_descr->mem_array[idx].\ 29726733b39aSJayamohan Kallickal bus_address.u.a64.address; 29736733b39aSJayamohan Kallickal num_wrb_rings = mem_descr->mem_array[idx].size / 29746733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn * 29756733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb)); 29766733b39aSJayamohan Kallickal pwrb_arr[num].virtual_address = wrb_vaddr; 29776733b39aSJayamohan Kallickal pwrb_arr[num].bus_address.u.a64.address\ 29786733b39aSJayamohan Kallickal = pa_addr_lo; 29796733b39aSJayamohan Kallickal pwrb_arr[num].size = phba->params.wrbs_per_cxn * 29806733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb); 29816733b39aSJayamohan Kallickal wrb_vaddr += pwrb_arr[num].size; 29826733b39aSJayamohan Kallickal pa_addr_lo += pwrb_arr[num].size; 29836733b39aSJayamohan Kallickal num_wrb_rings--; 29846733b39aSJayamohan Kallickal } 29856733b39aSJayamohan Kallickal } 29866733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 29876733b39aSJayamohan Kallickal wrb_mem_index = 0; 29886733b39aSJayamohan Kallickal offset = 0; 29896733b39aSJayamohan Kallickal size = 0; 29906733b39aSJayamohan Kallickal 29916733b39aSJayamohan Kallickal hwi_build_be_sgl_by_offset(phba, &pwrb_arr[i], &sgl); 29926733b39aSJayamohan Kallickal status = be_cmd_wrbq_create(&phba->ctrl, &sgl, 29936733b39aSJayamohan Kallickal &phwi_context->be_wrbq[i]); 29946733b39aSJayamohan Kallickal if (status != 0) { 29956733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 29966733b39aSJayamohan Kallickal "wrbq create failed."); 29971462b8ffSDan Carpenter kfree(pwrb_arr); 29986733b39aSJayamohan Kallickal return status; 29996733b39aSJayamohan Kallickal } 30007da50879SJayamohan Kallickal phwi_ctrlr->wrb_context[i * 2].cid = phwi_context->be_wrbq[i]. 30017da50879SJayamohan Kallickal id; 30026733b39aSJayamohan Kallickal } 30036733b39aSJayamohan Kallickal kfree(pwrb_arr); 30046733b39aSJayamohan Kallickal return 0; 30056733b39aSJayamohan Kallickal } 30066733b39aSJayamohan Kallickal 30076733b39aSJayamohan Kallickal static void free_wrb_handles(struct beiscsi_hba *phba) 30086733b39aSJayamohan Kallickal { 30096733b39aSJayamohan Kallickal unsigned int index; 30106733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 30116733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 30126733b39aSJayamohan Kallickal 30136733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 30146733b39aSJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) { 30156733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 30166733b39aSJayamohan Kallickal kfree(pwrb_context->pwrb_handle_base); 30176733b39aSJayamohan Kallickal kfree(pwrb_context->pwrb_handle_basestd); 30186733b39aSJayamohan Kallickal } 30196733b39aSJayamohan Kallickal } 30206733b39aSJayamohan Kallickal 3021bfead3b2SJayamohan Kallickal static void be_mcc_queues_destroy(struct beiscsi_hba *phba) 3022bfead3b2SJayamohan Kallickal { 3023bfead3b2SJayamohan Kallickal struct be_queue_info *q; 3024bfead3b2SJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 3025bfead3b2SJayamohan Kallickal 3026bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.q; 3027bfead3b2SJayamohan Kallickal if (q->created) 3028bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_MCCQ); 3029bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 3030bfead3b2SJayamohan Kallickal 3031bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.cq; 3032bfead3b2SJayamohan Kallickal if (q->created) 3033bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ); 3034bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 3035bfead3b2SJayamohan Kallickal } 3036bfead3b2SJayamohan Kallickal 30376733b39aSJayamohan Kallickal static void hwi_cleanup(struct beiscsi_hba *phba) 30386733b39aSJayamohan Kallickal { 30396733b39aSJayamohan Kallickal struct be_queue_info *q; 30406733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 30416733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 30426733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 3043bfead3b2SJayamohan Kallickal int i, eq_num; 30446733b39aSJayamohan Kallickal 30456733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 30466733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 30476733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 30486733b39aSJayamohan Kallickal q = &phwi_context->be_wrbq[i]; 30496733b39aSJayamohan Kallickal if (q->created) 30506733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ); 30516733b39aSJayamohan Kallickal } 30526733b39aSJayamohan Kallickal free_wrb_handles(phba); 30536733b39aSJayamohan Kallickal 30546733b39aSJayamohan Kallickal q = &phwi_context->be_def_hdrq; 30556733b39aSJayamohan Kallickal if (q->created) 30566733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ); 30576733b39aSJayamohan Kallickal 30586733b39aSJayamohan Kallickal q = &phwi_context->be_def_dataq; 30596733b39aSJayamohan Kallickal if (q->created) 30606733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ); 30616733b39aSJayamohan Kallickal 30626733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL); 30636733b39aSJayamohan Kallickal 3064bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus); i++) { 3065bfead3b2SJayamohan Kallickal q = &phwi_context->be_cq[i]; 30666733b39aSJayamohan Kallickal if (q->created) 30676733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ); 3068bfead3b2SJayamohan Kallickal } 3069bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 3070bfead3b2SJayamohan Kallickal eq_num = 1; 3071bfead3b2SJayamohan Kallickal else 3072bfead3b2SJayamohan Kallickal eq_num = 0; 3073bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_num); i++) { 3074bfead3b2SJayamohan Kallickal q = &phwi_context->be_eq[i].q; 30756733b39aSJayamohan Kallickal if (q->created) 30766733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ); 30776733b39aSJayamohan Kallickal } 3078bfead3b2SJayamohan Kallickal be_mcc_queues_destroy(phba); 3079bfead3b2SJayamohan Kallickal } 3080bfead3b2SJayamohan Kallickal 3081bfead3b2SJayamohan Kallickal static int be_mcc_queues_create(struct beiscsi_hba *phba, 3082bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context) 3083bfead3b2SJayamohan Kallickal { 3084bfead3b2SJayamohan Kallickal struct be_queue_info *q, *cq; 3085bfead3b2SJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 3086bfead3b2SJayamohan Kallickal 3087bfead3b2SJayamohan Kallickal /* Alloc MCC compl queue */ 3088bfead3b2SJayamohan Kallickal cq = &phba->ctrl.mcc_obj.cq; 3089bfead3b2SJayamohan Kallickal if (be_queue_alloc(phba, cq, MCC_CQ_LEN, 3090bfead3b2SJayamohan Kallickal sizeof(struct be_mcc_compl))) 3091bfead3b2SJayamohan Kallickal goto err; 3092bfead3b2SJayamohan Kallickal /* Ask BE to create MCC compl queue; */ 3093bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 3094bfead3b2SJayamohan Kallickal if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq 3095bfead3b2SJayamohan Kallickal [phba->num_cpus].q, false, true, 0)) 3096bfead3b2SJayamohan Kallickal goto mcc_cq_free; 3097bfead3b2SJayamohan Kallickal } else { 3098bfead3b2SJayamohan Kallickal if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq[0].q, 3099bfead3b2SJayamohan Kallickal false, true, 0)) 3100bfead3b2SJayamohan Kallickal goto mcc_cq_free; 3101bfead3b2SJayamohan Kallickal } 3102bfead3b2SJayamohan Kallickal 3103bfead3b2SJayamohan Kallickal /* Alloc MCC queue */ 3104bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.q; 3105bfead3b2SJayamohan Kallickal if (be_queue_alloc(phba, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb))) 3106bfead3b2SJayamohan Kallickal goto mcc_cq_destroy; 3107bfead3b2SJayamohan Kallickal 3108bfead3b2SJayamohan Kallickal /* Ask BE to create MCC queue */ 310935e66019SJayamohan Kallickal if (beiscsi_cmd_mccq_create(phba, q, cq)) 3110bfead3b2SJayamohan Kallickal goto mcc_q_free; 3111bfead3b2SJayamohan Kallickal 3112bfead3b2SJayamohan Kallickal return 0; 3113bfead3b2SJayamohan Kallickal 3114bfead3b2SJayamohan Kallickal mcc_q_free: 3115bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 3116bfead3b2SJayamohan Kallickal mcc_cq_destroy: 3117bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, cq, QTYPE_CQ); 3118bfead3b2SJayamohan Kallickal mcc_cq_free: 3119bfead3b2SJayamohan Kallickal be_queue_free(phba, cq); 3120bfead3b2SJayamohan Kallickal err: 3121d3ad2bb3SJayamohan Kallickal return -ENOMEM; 3122bfead3b2SJayamohan Kallickal } 3123bfead3b2SJayamohan Kallickal 3124bfead3b2SJayamohan Kallickal static int find_num_cpus(void) 3125bfead3b2SJayamohan Kallickal { 3126bfead3b2SJayamohan Kallickal int num_cpus = 0; 3127bfead3b2SJayamohan Kallickal 3128bfead3b2SJayamohan Kallickal num_cpus = num_online_cpus(); 3129bfead3b2SJayamohan Kallickal if (num_cpus >= MAX_CPUS) 3130bfead3b2SJayamohan Kallickal num_cpus = MAX_CPUS - 1; 3131bfead3b2SJayamohan Kallickal 3132bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "num_cpus = %d\n", num_cpus); 3133bfead3b2SJayamohan Kallickal return num_cpus; 3134bfead3b2SJayamohan Kallickal } 31356733b39aSJayamohan Kallickal 31366733b39aSJayamohan Kallickal static int hwi_init_port(struct beiscsi_hba *phba) 31376733b39aSJayamohan Kallickal { 31386733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 31396733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 31406733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz; 31416733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 31426733b39aSJayamohan Kallickal int status; 31436733b39aSJayamohan Kallickal 31446733b39aSJayamohan Kallickal def_pdu_ring_sz = 31456733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl * sizeof(struct phys_addr); 31466733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 31476733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 3148bfead3b2SJayamohan Kallickal phwi_context->max_eqd = 0; 3149bfead3b2SJayamohan Kallickal phwi_context->min_eqd = 0; 3150bfead3b2SJayamohan Kallickal phwi_context->cur_eqd = 64; 31516733b39aSJayamohan Kallickal be_cmd_fw_initialize(&phba->ctrl); 3152bfead3b2SJayamohan Kallickal 3153bfead3b2SJayamohan Kallickal status = beiscsi_create_eqs(phba, phwi_context); 31546733b39aSJayamohan Kallickal if (status != 0) { 31556733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "EQ not created\n"); 31566733b39aSJayamohan Kallickal goto error; 31576733b39aSJayamohan Kallickal } 31586733b39aSJayamohan Kallickal 3159bfead3b2SJayamohan Kallickal status = be_mcc_queues_create(phba, phwi_context); 3160bfead3b2SJayamohan Kallickal if (status != 0) 3161bfead3b2SJayamohan Kallickal goto error; 3162bfead3b2SJayamohan Kallickal 3163bfead3b2SJayamohan Kallickal status = mgmt_check_supported_fw(ctrl, phba); 31646733b39aSJayamohan Kallickal if (status != 0) { 31656733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 31666733b39aSJayamohan Kallickal "Unsupported fw version\n"); 31676733b39aSJayamohan Kallickal goto error; 31686733b39aSJayamohan Kallickal } 31696733b39aSJayamohan Kallickal 3170bfead3b2SJayamohan Kallickal status = beiscsi_create_cqs(phba, phwi_context); 31716733b39aSJayamohan Kallickal if (status != 0) { 31726733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "CQ not created\n"); 31736733b39aSJayamohan Kallickal goto error; 31746733b39aSJayamohan Kallickal } 31756733b39aSJayamohan Kallickal 31766733b39aSJayamohan Kallickal status = beiscsi_create_def_hdr(phba, phwi_context, phwi_ctrlr, 31776733b39aSJayamohan Kallickal def_pdu_ring_sz); 31786733b39aSJayamohan Kallickal if (status != 0) { 31796733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 31806733b39aSJayamohan Kallickal "Default Header not created\n"); 31816733b39aSJayamohan Kallickal goto error; 31826733b39aSJayamohan Kallickal } 31836733b39aSJayamohan Kallickal 31846733b39aSJayamohan Kallickal status = beiscsi_create_def_data(phba, phwi_context, 31856733b39aSJayamohan Kallickal phwi_ctrlr, def_pdu_ring_sz); 31866733b39aSJayamohan Kallickal if (status != 0) { 31876733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 31886733b39aSJayamohan Kallickal "Default Data not created\n"); 31896733b39aSJayamohan Kallickal goto error; 31906733b39aSJayamohan Kallickal } 31916733b39aSJayamohan Kallickal 31926733b39aSJayamohan Kallickal status = beiscsi_post_pages(phba); 31936733b39aSJayamohan Kallickal if (status != 0) { 31946733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "Post SGL Pages Failed\n"); 31956733b39aSJayamohan Kallickal goto error; 31966733b39aSJayamohan Kallickal } 31976733b39aSJayamohan Kallickal 31986733b39aSJayamohan Kallickal status = beiscsi_create_wrb_rings(phba, phwi_context, phwi_ctrlr); 31996733b39aSJayamohan Kallickal if (status != 0) { 32006733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 32016733b39aSJayamohan Kallickal "WRB Rings not created\n"); 32026733b39aSJayamohan Kallickal goto error; 32036733b39aSJayamohan Kallickal } 32046733b39aSJayamohan Kallickal 32056733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "hwi_init_port success\n"); 32066733b39aSJayamohan Kallickal return 0; 32076733b39aSJayamohan Kallickal 32086733b39aSJayamohan Kallickal error: 32096733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "hwi_init_port failed"); 32106733b39aSJayamohan Kallickal hwi_cleanup(phba); 32116733b39aSJayamohan Kallickal return -ENOMEM; 32126733b39aSJayamohan Kallickal } 32136733b39aSJayamohan Kallickal 32146733b39aSJayamohan Kallickal static int hwi_init_controller(struct beiscsi_hba *phba) 32156733b39aSJayamohan Kallickal { 32166733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 32176733b39aSJayamohan Kallickal 32186733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 32196733b39aSJayamohan Kallickal if (1 == phba->init_mem[HWI_MEM_ADDN_CONTEXT].num_elements) { 32206733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt = (struct hwi_context_memory *)phba-> 32216733b39aSJayamohan Kallickal init_mem[HWI_MEM_ADDN_CONTEXT].mem_array[0].virtual_address; 32226733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, " phwi_ctrlr->phwi_ctxt=%p\n", 32236733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt); 32246733b39aSJayamohan Kallickal } else { 32256733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 32266733b39aSJayamohan Kallickal "HWI_MEM_ADDN_CONTEXT is more than one element." 32276733b39aSJayamohan Kallickal "Failing to load\n"); 32286733b39aSJayamohan Kallickal return -ENOMEM; 32296733b39aSJayamohan Kallickal } 32306733b39aSJayamohan Kallickal 32316733b39aSJayamohan Kallickal iscsi_init_global_templates(phba); 32326733b39aSJayamohan Kallickal beiscsi_init_wrb_handle(phba); 32336733b39aSJayamohan Kallickal hwi_init_async_pdu_ctx(phba); 32346733b39aSJayamohan Kallickal if (hwi_init_port(phba) != 0) { 32356733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 32366733b39aSJayamohan Kallickal "hwi_init_controller failed\n"); 32376733b39aSJayamohan Kallickal return -ENOMEM; 32386733b39aSJayamohan Kallickal } 32396733b39aSJayamohan Kallickal return 0; 32406733b39aSJayamohan Kallickal } 32416733b39aSJayamohan Kallickal 32426733b39aSJayamohan Kallickal static void beiscsi_free_mem(struct beiscsi_hba *phba) 32436733b39aSJayamohan Kallickal { 32446733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 32456733b39aSJayamohan Kallickal int i, j; 32466733b39aSJayamohan Kallickal 32476733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 32486733b39aSJayamohan Kallickal i = 0; 32496733b39aSJayamohan Kallickal j = 0; 32506733b39aSJayamohan Kallickal for (i = 0; i < SE_MEM_MAX; i++) { 32516733b39aSJayamohan Kallickal for (j = mem_descr->num_elements; j > 0; j--) { 32526733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 32536733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].size, 32546733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].virtual_address, 3255457ff3b7SJayamohan Kallickal (unsigned long)mem_descr->mem_array[j - 1]. 3256457ff3b7SJayamohan Kallickal bus_address.u.a64.address); 32576733b39aSJayamohan Kallickal } 32586733b39aSJayamohan Kallickal kfree(mem_descr->mem_array); 32596733b39aSJayamohan Kallickal mem_descr++; 32606733b39aSJayamohan Kallickal } 32616733b39aSJayamohan Kallickal kfree(phba->init_mem); 32626733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 32636733b39aSJayamohan Kallickal } 32646733b39aSJayamohan Kallickal 32656733b39aSJayamohan Kallickal static int beiscsi_init_controller(struct beiscsi_hba *phba) 32666733b39aSJayamohan Kallickal { 32676733b39aSJayamohan Kallickal int ret = -ENOMEM; 32686733b39aSJayamohan Kallickal 32696733b39aSJayamohan Kallickal ret = beiscsi_get_memory(phba); 32706733b39aSJayamohan Kallickal if (ret < 0) { 32716733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe -" 32726733b39aSJayamohan Kallickal "Failed in beiscsi_alloc_memory\n"); 32736733b39aSJayamohan Kallickal return ret; 32746733b39aSJayamohan Kallickal } 32756733b39aSJayamohan Kallickal 32766733b39aSJayamohan Kallickal ret = hwi_init_controller(phba); 32776733b39aSJayamohan Kallickal if (ret) 32786733b39aSJayamohan Kallickal goto free_init; 32796733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Return success from beiscsi_init_controller"); 32806733b39aSJayamohan Kallickal return 0; 32816733b39aSJayamohan Kallickal 32826733b39aSJayamohan Kallickal free_init: 32836733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 32846733b39aSJayamohan Kallickal return -ENOMEM; 32856733b39aSJayamohan Kallickal } 32866733b39aSJayamohan Kallickal 32876733b39aSJayamohan Kallickal static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba) 32886733b39aSJayamohan Kallickal { 32896733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg; 32906733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 32916733b39aSJayamohan Kallickal struct iscsi_sge *pfrag; 32926733b39aSJayamohan Kallickal unsigned int arr_index, i, idx; 32936733b39aSJayamohan Kallickal 32946733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl = 0; 32956733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl = 0; 3296bfead3b2SJayamohan Kallickal 32976733b39aSJayamohan Kallickal mem_descr_sglh = phba->init_mem; 32986733b39aSJayamohan Kallickal mem_descr_sglh += HWI_MEM_SGLH; 32996733b39aSJayamohan Kallickal if (1 == mem_descr_sglh->num_elements) { 33006733b39aSJayamohan Kallickal phba->io_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) * 33016733b39aSJayamohan Kallickal phba->params.ios_per_ctrl, 33026733b39aSJayamohan Kallickal GFP_KERNEL); 33036733b39aSJayamohan Kallickal if (!phba->io_sgl_hndl_base) { 33046733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 33056733b39aSJayamohan Kallickal "Mem Alloc Failed. Failing to load\n"); 33066733b39aSJayamohan Kallickal return -ENOMEM; 33076733b39aSJayamohan Kallickal } 33086733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) * 33096733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - 33106733b39aSJayamohan Kallickal phba->params.ios_per_ctrl), 33116733b39aSJayamohan Kallickal GFP_KERNEL); 33126733b39aSJayamohan Kallickal if (!phba->eh_sgl_hndl_base) { 33136733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 33146733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 33156733b39aSJayamohan Kallickal "Mem Alloc Failed. Failing to load\n"); 33166733b39aSJayamohan Kallickal return -ENOMEM; 33176733b39aSJayamohan Kallickal } 33186733b39aSJayamohan Kallickal } else { 33196733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 33206733b39aSJayamohan Kallickal "HWI_MEM_SGLH is more than one element." 33216733b39aSJayamohan Kallickal "Failing to load\n"); 33226733b39aSJayamohan Kallickal return -ENOMEM; 33236733b39aSJayamohan Kallickal } 33246733b39aSJayamohan Kallickal 33256733b39aSJayamohan Kallickal arr_index = 0; 33266733b39aSJayamohan Kallickal idx = 0; 33276733b39aSJayamohan Kallickal while (idx < mem_descr_sglh->num_elements) { 33286733b39aSJayamohan Kallickal psgl_handle = mem_descr_sglh->mem_array[idx].virtual_address; 33296733b39aSJayamohan Kallickal 33306733b39aSJayamohan Kallickal for (i = 0; i < (mem_descr_sglh->mem_array[idx].size / 33316733b39aSJayamohan Kallickal sizeof(struct sgl_handle)); i++) { 33326733b39aSJayamohan Kallickal if (arr_index < phba->params.ios_per_ctrl) { 33336733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[arr_index] = psgl_handle; 33346733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl++; 33356733b39aSJayamohan Kallickal arr_index++; 33366733b39aSJayamohan Kallickal } else { 33376733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[arr_index - 33386733b39aSJayamohan Kallickal phba->params.ios_per_ctrl] = 33396733b39aSJayamohan Kallickal psgl_handle; 33406733b39aSJayamohan Kallickal arr_index++; 33416733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl++; 33426733b39aSJayamohan Kallickal } 33436733b39aSJayamohan Kallickal psgl_handle++; 33446733b39aSJayamohan Kallickal } 33456733b39aSJayamohan Kallickal idx++; 33466733b39aSJayamohan Kallickal } 33476733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 33486733b39aSJayamohan Kallickal "phba->io_sgl_hndl_avbl=%d" 33496733b39aSJayamohan Kallickal "phba->eh_sgl_hndl_avbl=%d\n", 33506733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl, 33516733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl); 33526733b39aSJayamohan Kallickal mem_descr_sg = phba->init_mem; 33536733b39aSJayamohan Kallickal mem_descr_sg += HWI_MEM_SGE; 33546733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "\n mem_descr_sg->num_elements=%d\n", 33556733b39aSJayamohan Kallickal mem_descr_sg->num_elements); 33566733b39aSJayamohan Kallickal arr_index = 0; 33576733b39aSJayamohan Kallickal idx = 0; 33586733b39aSJayamohan Kallickal while (idx < mem_descr_sg->num_elements) { 33596733b39aSJayamohan Kallickal pfrag = mem_descr_sg->mem_array[idx].virtual_address; 33606733b39aSJayamohan Kallickal 33616733b39aSJayamohan Kallickal for (i = 0; 33626733b39aSJayamohan Kallickal i < (mem_descr_sg->mem_array[idx].size) / 33636733b39aSJayamohan Kallickal (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io); 33646733b39aSJayamohan Kallickal i++) { 33656733b39aSJayamohan Kallickal if (arr_index < phba->params.ios_per_ctrl) 33666733b39aSJayamohan Kallickal psgl_handle = phba->io_sgl_hndl_base[arr_index]; 33676733b39aSJayamohan Kallickal else 33686733b39aSJayamohan Kallickal psgl_handle = phba->eh_sgl_hndl_base[arr_index - 33696733b39aSJayamohan Kallickal phba->params.ios_per_ctrl]; 33706733b39aSJayamohan Kallickal psgl_handle->pfrag = pfrag; 33716733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, pfrag, 0); 33726733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0); 33736733b39aSJayamohan Kallickal pfrag += phba->params.num_sge_per_io; 33746733b39aSJayamohan Kallickal psgl_handle->sgl_index = 33757da50879SJayamohan Kallickal phba->fw_config.iscsi_icd_start + arr_index++; 33766733b39aSJayamohan Kallickal } 33776733b39aSJayamohan Kallickal idx++; 33786733b39aSJayamohan Kallickal } 33796733b39aSJayamohan Kallickal phba->io_sgl_free_index = 0; 33806733b39aSJayamohan Kallickal phba->io_sgl_alloc_index = 0; 33816733b39aSJayamohan Kallickal phba->eh_sgl_free_index = 0; 33826733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index = 0; 33836733b39aSJayamohan Kallickal return 0; 33846733b39aSJayamohan Kallickal } 33856733b39aSJayamohan Kallickal 33866733b39aSJayamohan Kallickal static int hba_setup_cid_tbls(struct beiscsi_hba *phba) 33876733b39aSJayamohan Kallickal { 33886733b39aSJayamohan Kallickal int i, new_cid; 33896733b39aSJayamohan Kallickal 3390c2462288SJayamohan Kallickal phba->cid_array = kzalloc(sizeof(void *) * phba->params.cxns_per_ctrl, 33916733b39aSJayamohan Kallickal GFP_KERNEL); 33926733b39aSJayamohan Kallickal if (!phba->cid_array) { 33936733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 33946733b39aSJayamohan Kallickal "Failed to allocate memory in " 33956733b39aSJayamohan Kallickal "hba_setup_cid_tbls\n"); 33966733b39aSJayamohan Kallickal return -ENOMEM; 33976733b39aSJayamohan Kallickal } 3398c2462288SJayamohan Kallickal phba->ep_array = kzalloc(sizeof(struct iscsi_endpoint *) * 33996733b39aSJayamohan Kallickal phba->params.cxns_per_ctrl * 2, GFP_KERNEL); 34006733b39aSJayamohan Kallickal if (!phba->ep_array) { 34016733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 34026733b39aSJayamohan Kallickal "Failed to allocate memory in " 34036733b39aSJayamohan Kallickal "hba_setup_cid_tbls\n"); 34046733b39aSJayamohan Kallickal kfree(phba->cid_array); 34056733b39aSJayamohan Kallickal return -ENOMEM; 34066733b39aSJayamohan Kallickal } 34077da50879SJayamohan Kallickal new_cid = phba->fw_config.iscsi_cid_start; 34086733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 34096733b39aSJayamohan Kallickal phba->cid_array[i] = new_cid; 34106733b39aSJayamohan Kallickal new_cid += 2; 34116733b39aSJayamohan Kallickal } 34126733b39aSJayamohan Kallickal phba->avlbl_cids = phba->params.cxns_per_ctrl; 34136733b39aSJayamohan Kallickal return 0; 34146733b39aSJayamohan Kallickal } 34156733b39aSJayamohan Kallickal 3416238f6b72SJayamohan Kallickal static void hwi_enable_intr(struct beiscsi_hba *phba) 34176733b39aSJayamohan Kallickal { 34186733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 34196733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 34206733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 34216733b39aSJayamohan Kallickal struct be_queue_info *eq; 34226733b39aSJayamohan Kallickal u8 __iomem *addr; 3423bfead3b2SJayamohan Kallickal u32 reg, i; 34246733b39aSJayamohan Kallickal u32 enabled; 34256733b39aSJayamohan Kallickal 34266733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 34276733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 34286733b39aSJayamohan Kallickal 34296733b39aSJayamohan Kallickal addr = (u8 __iomem *) ((u8 __iomem *) ctrl->pcicfg + 34306733b39aSJayamohan Kallickal PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET); 34316733b39aSJayamohan Kallickal reg = ioread32(addr); 34326733b39aSJayamohan Kallickal 34336733b39aSJayamohan Kallickal enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 34346733b39aSJayamohan Kallickal if (!enabled) { 34356733b39aSJayamohan Kallickal reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 34366733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "reg =x%08x addr=%p\n", reg, addr); 34376733b39aSJayamohan Kallickal iowrite32(reg, addr); 3438665d6d94SJayamohan Kallickal } 3439665d6d94SJayamohan Kallickal 3440c03af1aeSJayamohan Kallickal if (!phba->msix_enabled) { 3441c03af1aeSJayamohan Kallickal eq = &phwi_context->be_eq[0].q; 3442c03af1aeSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "eq->id=%d\n", eq->id); 3443c03af1aeSJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1); 3444c03af1aeSJayamohan Kallickal } else { 3445bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) { 3446bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 34476733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "eq->id=%d\n", eq->id); 34486733b39aSJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1); 3449bfead3b2SJayamohan Kallickal } 3450c03af1aeSJayamohan Kallickal } 3451c03af1aeSJayamohan Kallickal } 34526733b39aSJayamohan Kallickal 34536733b39aSJayamohan Kallickal static void hwi_disable_intr(struct beiscsi_hba *phba) 34546733b39aSJayamohan Kallickal { 34556733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 34566733b39aSJayamohan Kallickal 34576733b39aSJayamohan Kallickal u8 __iomem *addr = ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET; 34586733b39aSJayamohan Kallickal u32 reg = ioread32(addr); 34596733b39aSJayamohan Kallickal 34606733b39aSJayamohan Kallickal u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 34616733b39aSJayamohan Kallickal if (enabled) { 34626733b39aSJayamohan Kallickal reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 34636733b39aSJayamohan Kallickal iowrite32(reg, addr); 34646733b39aSJayamohan Kallickal } else 34656733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 34666733b39aSJayamohan Kallickal "In hwi_disable_intr, Already Disabled\n"); 34676733b39aSJayamohan Kallickal } 34686733b39aSJayamohan Kallickal 3469c7acc5b8SJayamohan Kallickal static int beiscsi_get_boot_info(struct beiscsi_hba *phba) 3470c7acc5b8SJayamohan Kallickal { 3471c7acc5b8SJayamohan Kallickal struct be_cmd_resp_get_boot_target *boot_resp; 3472c7acc5b8SJayamohan Kallickal struct be_cmd_resp_get_session *session_resp; 3473c7acc5b8SJayamohan Kallickal struct be_mcc_wrb *wrb; 3474c7acc5b8SJayamohan Kallickal struct be_dma_mem nonemb_cmd; 3475c7acc5b8SJayamohan Kallickal unsigned int tag, wrb_num; 3476c7acc5b8SJayamohan Kallickal unsigned short status, extd_status; 3477c7acc5b8SJayamohan Kallickal struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q; 3478f457a46fSMike Christie int ret = -ENOMEM; 3479c7acc5b8SJayamohan Kallickal 3480c7acc5b8SJayamohan Kallickal tag = beiscsi_get_boot_target(phba); 3481c7acc5b8SJayamohan Kallickal if (!tag) { 3482c7acc5b8SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "be_cmd_get_mac_addr Failed\n"); 3483c7acc5b8SJayamohan Kallickal return -EAGAIN; 3484c7acc5b8SJayamohan Kallickal } else 3485c7acc5b8SJayamohan Kallickal wait_event_interruptible(phba->ctrl.mcc_wait[tag], 3486c7acc5b8SJayamohan Kallickal phba->ctrl.mcc_numtag[tag]); 3487c7acc5b8SJayamohan Kallickal 3488c7acc5b8SJayamohan Kallickal wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16; 3489c7acc5b8SJayamohan Kallickal extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8; 3490c7acc5b8SJayamohan Kallickal status = phba->ctrl.mcc_numtag[tag] & 0x000000FF; 3491c7acc5b8SJayamohan Kallickal if (status || extd_status) { 3492c7acc5b8SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "be_cmd_get_mac_addr Failed" 3493c7acc5b8SJayamohan Kallickal " status = %d extd_status = %d\n", 3494c7acc5b8SJayamohan Kallickal status, extd_status); 3495c7acc5b8SJayamohan Kallickal free_mcc_tag(&phba->ctrl, tag); 3496c7acc5b8SJayamohan Kallickal return -EBUSY; 3497c7acc5b8SJayamohan Kallickal } 3498c7acc5b8SJayamohan Kallickal wrb = queue_get_wrb(mccq, wrb_num); 3499c7acc5b8SJayamohan Kallickal free_mcc_tag(&phba->ctrl, tag); 3500c7acc5b8SJayamohan Kallickal boot_resp = embedded_payload(wrb); 3501c7acc5b8SJayamohan Kallickal 3502c7acc5b8SJayamohan Kallickal if (boot_resp->boot_session_handle < 0) { 3503f457a46fSMike Christie shost_printk(KERN_INFO, phba->shost, "No Boot Session.\n"); 3504c7acc5b8SJayamohan Kallickal return -ENXIO; 3505c7acc5b8SJayamohan Kallickal } 3506c7acc5b8SJayamohan Kallickal 3507c7acc5b8SJayamohan Kallickal nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev, 3508c7acc5b8SJayamohan Kallickal sizeof(*session_resp), 3509c7acc5b8SJayamohan Kallickal &nonemb_cmd.dma); 3510c7acc5b8SJayamohan Kallickal if (nonemb_cmd.va == NULL) { 3511c7acc5b8SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 3512c7acc5b8SJayamohan Kallickal "Failed to allocate memory for" 3513c7acc5b8SJayamohan Kallickal "beiscsi_get_session_info\n"); 3514c7acc5b8SJayamohan Kallickal return -ENOMEM; 3515c7acc5b8SJayamohan Kallickal } 3516c7acc5b8SJayamohan Kallickal 3517c7acc5b8SJayamohan Kallickal memset(nonemb_cmd.va, 0, sizeof(*session_resp)); 3518c7acc5b8SJayamohan Kallickal tag = beiscsi_get_session_info(phba, 3519c7acc5b8SJayamohan Kallickal boot_resp->boot_session_handle, &nonemb_cmd); 3520c7acc5b8SJayamohan Kallickal if (!tag) { 3521c7acc5b8SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "beiscsi_get_session_info" 3522c7acc5b8SJayamohan Kallickal " Failed\n"); 3523c7acc5b8SJayamohan Kallickal goto boot_freemem; 3524c7acc5b8SJayamohan Kallickal } else 3525c7acc5b8SJayamohan Kallickal wait_event_interruptible(phba->ctrl.mcc_wait[tag], 3526c7acc5b8SJayamohan Kallickal phba->ctrl.mcc_numtag[tag]); 3527c7acc5b8SJayamohan Kallickal 3528c7acc5b8SJayamohan Kallickal wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16; 3529c7acc5b8SJayamohan Kallickal extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8; 3530c7acc5b8SJayamohan Kallickal status = phba->ctrl.mcc_numtag[tag] & 0x000000FF; 3531c7acc5b8SJayamohan Kallickal if (status || extd_status) { 3532c7acc5b8SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "beiscsi_get_session_info Failed" 3533c7acc5b8SJayamohan Kallickal " status = %d extd_status = %d\n", 3534c7acc5b8SJayamohan Kallickal status, extd_status); 3535c7acc5b8SJayamohan Kallickal free_mcc_tag(&phba->ctrl, tag); 3536c7acc5b8SJayamohan Kallickal goto boot_freemem; 3537c7acc5b8SJayamohan Kallickal } 3538c7acc5b8SJayamohan Kallickal wrb = queue_get_wrb(mccq, wrb_num); 3539c7acc5b8SJayamohan Kallickal free_mcc_tag(&phba->ctrl, tag); 3540c7acc5b8SJayamohan Kallickal session_resp = nonemb_cmd.va ; 3541f457a46fSMike Christie 3542c7acc5b8SJayamohan Kallickal memcpy(&phba->boot_sess, &session_resp->session_info, 3543c7acc5b8SJayamohan Kallickal sizeof(struct mgmt_session_info)); 3544f457a46fSMike Christie ret = 0; 3545f457a46fSMike Christie 3546c7acc5b8SJayamohan Kallickal boot_freemem: 3547c7acc5b8SJayamohan Kallickal pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, 3548c7acc5b8SJayamohan Kallickal nonemb_cmd.va, nonemb_cmd.dma); 3549f457a46fSMike Christie return ret; 3550f457a46fSMike Christie } 3551f457a46fSMike Christie 3552f457a46fSMike Christie static void beiscsi_boot_release(void *data) 3553f457a46fSMike Christie { 3554f457a46fSMike Christie struct beiscsi_hba *phba = data; 3555f457a46fSMike Christie 3556f457a46fSMike Christie scsi_host_put(phba->shost); 3557f457a46fSMike Christie } 3558f457a46fSMike Christie 3559f457a46fSMike Christie static int beiscsi_setup_boot_info(struct beiscsi_hba *phba) 3560f457a46fSMike Christie { 3561f457a46fSMike Christie struct iscsi_boot_kobj *boot_kobj; 3562f457a46fSMike Christie 3563f457a46fSMike Christie /* get boot info using mgmt cmd */ 3564f457a46fSMike Christie if (beiscsi_get_boot_info(phba)) 3565f457a46fSMike Christie /* Try to see if we can carry on without this */ 3566f457a46fSMike Christie return 0; 3567f457a46fSMike Christie 3568f457a46fSMike Christie phba->boot_kset = iscsi_boot_create_host_kset(phba->shost->host_no); 3569f457a46fSMike Christie if (!phba->boot_kset) 3570f457a46fSMike Christie return -ENOMEM; 3571f457a46fSMike Christie 3572f457a46fSMike Christie /* get a ref because the show function will ref the phba */ 3573f457a46fSMike Christie if (!scsi_host_get(phba->shost)) 3574f457a46fSMike Christie goto free_kset; 3575f457a46fSMike Christie boot_kobj = iscsi_boot_create_target(phba->boot_kset, 0, phba, 3576f457a46fSMike Christie beiscsi_show_boot_tgt_info, 3577f457a46fSMike Christie beiscsi_tgt_get_attr_visibility, 3578f457a46fSMike Christie beiscsi_boot_release); 3579f457a46fSMike Christie if (!boot_kobj) 3580f457a46fSMike Christie goto put_shost; 3581f457a46fSMike Christie 3582f457a46fSMike Christie if (!scsi_host_get(phba->shost)) 3583f457a46fSMike Christie goto free_kset; 3584f457a46fSMike Christie boot_kobj = iscsi_boot_create_initiator(phba->boot_kset, 0, phba, 3585f457a46fSMike Christie beiscsi_show_boot_ini_info, 3586f457a46fSMike Christie beiscsi_ini_get_attr_visibility, 3587f457a46fSMike Christie beiscsi_boot_release); 3588f457a46fSMike Christie if (!boot_kobj) 3589f457a46fSMike Christie goto put_shost; 3590f457a46fSMike Christie 3591f457a46fSMike Christie if (!scsi_host_get(phba->shost)) 3592f457a46fSMike Christie goto free_kset; 3593f457a46fSMike Christie boot_kobj = iscsi_boot_create_ethernet(phba->boot_kset, 0, phba, 3594f457a46fSMike Christie beiscsi_show_boot_eth_info, 3595f457a46fSMike Christie beiscsi_eth_get_attr_visibility, 3596f457a46fSMike Christie beiscsi_boot_release); 3597f457a46fSMike Christie if (!boot_kobj) 3598f457a46fSMike Christie goto put_shost; 3599f457a46fSMike Christie return 0; 3600f457a46fSMike Christie 3601f457a46fSMike Christie put_shost: 3602f457a46fSMike Christie scsi_host_put(phba->shost); 3603f457a46fSMike Christie free_kset: 3604f457a46fSMike Christie iscsi_boot_destroy_kset(phba->boot_kset); 3605c7acc5b8SJayamohan Kallickal return -ENOMEM; 3606c7acc5b8SJayamohan Kallickal } 3607c7acc5b8SJayamohan Kallickal 36086733b39aSJayamohan Kallickal static int beiscsi_init_port(struct beiscsi_hba *phba) 36096733b39aSJayamohan Kallickal { 36106733b39aSJayamohan Kallickal int ret; 36116733b39aSJayamohan Kallickal 36126733b39aSJayamohan Kallickal ret = beiscsi_init_controller(phba); 36136733b39aSJayamohan Kallickal if (ret < 0) { 36146733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 36156733b39aSJayamohan Kallickal "beiscsi_dev_probe - Failed in" 36166733b39aSJayamohan Kallickal "beiscsi_init_controller\n"); 36176733b39aSJayamohan Kallickal return ret; 36186733b39aSJayamohan Kallickal } 36196733b39aSJayamohan Kallickal ret = beiscsi_init_sgl_handle(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_sgl_handle\n"); 36246733b39aSJayamohan Kallickal goto do_cleanup_ctrlr; 36256733b39aSJayamohan Kallickal } 36266733b39aSJayamohan Kallickal 36276733b39aSJayamohan Kallickal if (hba_setup_cid_tbls(phba)) { 36286733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 36296733b39aSJayamohan Kallickal "Failed in hba_setup_cid_tbls\n"); 36306733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 36316733b39aSJayamohan Kallickal kfree(phba->eh_sgl_hndl_base); 36326733b39aSJayamohan Kallickal goto do_cleanup_ctrlr; 36336733b39aSJayamohan Kallickal } 36346733b39aSJayamohan Kallickal 36356733b39aSJayamohan Kallickal return ret; 36366733b39aSJayamohan Kallickal 36376733b39aSJayamohan Kallickal do_cleanup_ctrlr: 36386733b39aSJayamohan Kallickal hwi_cleanup(phba); 36396733b39aSJayamohan Kallickal return ret; 36406733b39aSJayamohan Kallickal } 36416733b39aSJayamohan Kallickal 36426733b39aSJayamohan Kallickal static void hwi_purge_eq(struct beiscsi_hba *phba) 36436733b39aSJayamohan Kallickal { 36446733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 36456733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 36466733b39aSJayamohan Kallickal struct be_queue_info *eq; 36476733b39aSJayamohan Kallickal struct be_eq_entry *eqe = NULL; 3648bfead3b2SJayamohan Kallickal int i, eq_msix; 3649756d29c8SJayamohan Kallickal unsigned int num_processed; 36506733b39aSJayamohan Kallickal 36516733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 36526733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 3653bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 3654bfead3b2SJayamohan Kallickal eq_msix = 1; 3655bfead3b2SJayamohan Kallickal else 3656bfead3b2SJayamohan Kallickal eq_msix = 0; 3657bfead3b2SJayamohan Kallickal 3658bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_msix); i++) { 3659bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 36606733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 3661756d29c8SJayamohan Kallickal num_processed = 0; 36626733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 36636733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 36646733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 36656733b39aSJayamohan Kallickal queue_tail_inc(eq); 36666733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 3667756d29c8SJayamohan Kallickal num_processed++; 36686733b39aSJayamohan Kallickal } 3669756d29c8SJayamohan Kallickal 3670756d29c8SJayamohan Kallickal if (num_processed) 3671756d29c8SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_processed, 1, 1); 36726733b39aSJayamohan Kallickal } 3673bfead3b2SJayamohan Kallickal } 36746733b39aSJayamohan Kallickal 36756733b39aSJayamohan Kallickal static void beiscsi_clean_port(struct beiscsi_hba *phba) 36766733b39aSJayamohan Kallickal { 367703a12310SJayamohan Kallickal int mgmt_status; 36786733b39aSJayamohan Kallickal 36796733b39aSJayamohan Kallickal mgmt_status = mgmt_epfw_cleanup(phba, CMD_CONNECTION_CHUTE_0); 36806733b39aSJayamohan Kallickal if (mgmt_status) 36816733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 36826733b39aSJayamohan Kallickal "mgmt_epfw_cleanup FAILED\n"); 3683756d29c8SJayamohan Kallickal 36846733b39aSJayamohan Kallickal hwi_purge_eq(phba); 3685756d29c8SJayamohan Kallickal hwi_cleanup(phba); 36866733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 36876733b39aSJayamohan Kallickal kfree(phba->eh_sgl_hndl_base); 36886733b39aSJayamohan Kallickal kfree(phba->cid_array); 36896733b39aSJayamohan Kallickal kfree(phba->ep_array); 36906733b39aSJayamohan Kallickal } 36916733b39aSJayamohan Kallickal 36926733b39aSJayamohan Kallickal void 36936733b39aSJayamohan Kallickal beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn, 36946733b39aSJayamohan Kallickal struct beiscsi_offload_params *params) 36956733b39aSJayamohan Kallickal { 36966733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 36976733b39aSJayamohan Kallickal struct iscsi_target_context_update_wrb *pwrb = NULL; 36986733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 36996733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 37006733b39aSJayamohan Kallickal u32 doorbell = 0; 37016733b39aSJayamohan Kallickal 37026733b39aSJayamohan Kallickal /* 37036733b39aSJayamohan Kallickal * We can always use 0 here because it is reserved by libiscsi for 37046733b39aSJayamohan Kallickal * login/startup related tasks. 37056733b39aSJayamohan Kallickal */ 37067da50879SJayamohan Kallickal pwrb_handle = alloc_wrb_handle(phba, (beiscsi_conn->beiscsi_conn_cid - 3707d5431488SJayamohan Kallickal phba->fw_config.iscsi_cid_start)); 37086733b39aSJayamohan Kallickal pwrb = (struct iscsi_target_context_update_wrb *)pwrb_handle->pwrb; 37096733b39aSJayamohan Kallickal memset(pwrb, 0, sizeof(*pwrb)); 37106733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 37116733b39aSJayamohan Kallickal max_burst_length, pwrb, params->dw[offsetof 37126733b39aSJayamohan Kallickal (struct amap_beiscsi_offload_params, 37136733b39aSJayamohan Kallickal max_burst_length) / 32]); 37146733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 37156733b39aSJayamohan Kallickal max_send_data_segment_length, pwrb, 37166733b39aSJayamohan Kallickal params->dw[offsetof(struct amap_beiscsi_offload_params, 37176733b39aSJayamohan Kallickal max_send_data_segment_length) / 32]); 37186733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 37196733b39aSJayamohan Kallickal first_burst_length, 37206733b39aSJayamohan Kallickal pwrb, 37216733b39aSJayamohan Kallickal params->dw[offsetof(struct amap_beiscsi_offload_params, 37226733b39aSJayamohan Kallickal first_burst_length) / 32]); 37236733b39aSJayamohan Kallickal 37246733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, erl, pwrb, 37256733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 37266733b39aSJayamohan Kallickal erl) / 32] & OFFLD_PARAMS_ERL)); 37276733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, dde, pwrb, 37286733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 37296733b39aSJayamohan Kallickal dde) / 32] & OFFLD_PARAMS_DDE) >> 2); 37306733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, hde, pwrb, 37316733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 37326733b39aSJayamohan Kallickal hde) / 32] & OFFLD_PARAMS_HDE) >> 3); 37336733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ir2t, pwrb, 37346733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 37356733b39aSJayamohan Kallickal ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4); 37366733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, imd, pwrb, 37376733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 37386733b39aSJayamohan Kallickal imd) / 32] & OFFLD_PARAMS_IMD) >> 5); 37396733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, stat_sn, 37406733b39aSJayamohan Kallickal pwrb, 37416733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 37426733b39aSJayamohan Kallickal exp_statsn) / 32] + 1)); 37436733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, type, pwrb, 37446733b39aSJayamohan Kallickal 0x7); 37456733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, wrb_idx, 37466733b39aSJayamohan Kallickal pwrb, pwrb_handle->wrb_index); 37476733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ptr2nextwrb, 37486733b39aSJayamohan Kallickal pwrb, pwrb_handle->nxt_wrb_index); 37496733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 37506733b39aSJayamohan Kallickal session_state, pwrb, 0); 37516733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, compltonack, 37526733b39aSJayamohan Kallickal pwrb, 1); 37536733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, notpredblq, 37546733b39aSJayamohan Kallickal pwrb, 0); 37556733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, mode, pwrb, 37566733b39aSJayamohan Kallickal 0); 37576733b39aSJayamohan Kallickal 37586733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 37596733b39aSJayamohan Kallickal mem_descr += ISCSI_MEM_GLOBAL_HEADER; 37606733b39aSJayamohan Kallickal 37616733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 37626733b39aSJayamohan Kallickal pad_buffer_addr_hi, pwrb, 37636733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a32.address_hi); 37646733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 37656733b39aSJayamohan Kallickal pad_buffer_addr_lo, pwrb, 37666733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a32.address_lo); 37676733b39aSJayamohan Kallickal 37686733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_target_context_update_wrb)); 37696733b39aSJayamohan Kallickal 37706733b39aSJayamohan Kallickal doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 3771bfead3b2SJayamohan Kallickal doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK) 3772bfead3b2SJayamohan Kallickal << DB_DEF_PDU_WRB_INDEX_SHIFT; 37736733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 37746733b39aSJayamohan Kallickal 37756733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); 37766733b39aSJayamohan Kallickal } 37776733b39aSJayamohan Kallickal 37786733b39aSJayamohan Kallickal static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt, 37796733b39aSJayamohan Kallickal int *index, int *age) 37806733b39aSJayamohan Kallickal { 3781bfead3b2SJayamohan Kallickal *index = (int)itt; 37826733b39aSJayamohan Kallickal if (age) 37836733b39aSJayamohan Kallickal *age = conn->session->age; 37846733b39aSJayamohan Kallickal } 37856733b39aSJayamohan Kallickal 37866733b39aSJayamohan Kallickal /** 37876733b39aSJayamohan Kallickal * beiscsi_alloc_pdu - allocates pdu and related resources 37886733b39aSJayamohan Kallickal * @task: libiscsi task 37896733b39aSJayamohan Kallickal * @opcode: opcode of pdu for task 37906733b39aSJayamohan Kallickal * 37916733b39aSJayamohan Kallickal * This is called with the session lock held. It will allocate 37926733b39aSJayamohan Kallickal * the wrb and sgl if needed for the command. And it will prep 37936733b39aSJayamohan Kallickal * the pdu's itt. beiscsi_parse_pdu will later translate 37946733b39aSJayamohan Kallickal * the pdu itt to the libiscsi task itt. 37956733b39aSJayamohan Kallickal */ 37966733b39aSJayamohan Kallickal static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 37976733b39aSJayamohan Kallickal { 37986733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 37996733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 38006733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 38016733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 38026733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 38036733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 38046733b39aSJayamohan Kallickal itt_t itt; 38052afc95bfSJayamohan Kallickal struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess; 38062afc95bfSJayamohan Kallickal dma_addr_t paddr; 38076733b39aSJayamohan Kallickal 38082afc95bfSJayamohan Kallickal io_task->cmd_bhs = pci_pool_alloc(beiscsi_sess->bhs_pool, 3809bc7accecSMike Christie GFP_ATOMIC, &paddr); 38102afc95bfSJayamohan Kallickal if (!io_task->cmd_bhs) 38112afc95bfSJayamohan Kallickal return -ENOMEM; 38122afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address = paddr; 3813bfead3b2SJayamohan Kallickal io_task->libiscsi_itt = (itt_t)task->itt; 38146733b39aSJayamohan Kallickal io_task->conn = beiscsi_conn; 38156733b39aSJayamohan Kallickal 38166733b39aSJayamohan Kallickal task->hdr = (struct iscsi_hdr *)&io_task->cmd_bhs->iscsi_hdr; 38176733b39aSJayamohan Kallickal task->hdr_max = sizeof(struct be_cmd_bhs); 3818d2cecf0dSJayamohan Kallickal io_task->psgl_handle = NULL; 3819d2cecf0dSJayamohan Kallickal io_task->psgl_handle = NULL; 38206733b39aSJayamohan Kallickal 38216733b39aSJayamohan Kallickal if (task->sc) { 38226733b39aSJayamohan Kallickal spin_lock(&phba->io_sgl_lock); 38236733b39aSJayamohan Kallickal io_task->psgl_handle = alloc_io_sgl_handle(phba); 38246733b39aSJayamohan Kallickal spin_unlock(&phba->io_sgl_lock); 38252afc95bfSJayamohan Kallickal if (!io_task->psgl_handle) 38262afc95bfSJayamohan Kallickal goto free_hndls; 3827d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = alloc_wrb_handle(phba, 3828d2cecf0dSJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid - 3829d2cecf0dSJayamohan Kallickal phba->fw_config.iscsi_cid_start); 3830d2cecf0dSJayamohan Kallickal if (!io_task->pwrb_handle) 3831d2cecf0dSJayamohan Kallickal goto free_io_hndls; 38326733b39aSJayamohan Kallickal } else { 38336733b39aSJayamohan Kallickal io_task->scsi_cmnd = NULL; 3834d7aea67bSJayamohan Kallickal if ((opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) { 38356733b39aSJayamohan Kallickal if (!beiscsi_conn->login_in_progress) { 38366733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 38376733b39aSJayamohan Kallickal io_task->psgl_handle = (struct sgl_handle *) 38386733b39aSJayamohan Kallickal alloc_mgmt_sgl_handle(phba); 38396733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 38402afc95bfSJayamohan Kallickal if (!io_task->psgl_handle) 38412afc95bfSJayamohan Kallickal goto free_hndls; 38422afc95bfSJayamohan Kallickal 38436733b39aSJayamohan Kallickal beiscsi_conn->login_in_progress = 1; 38446733b39aSJayamohan Kallickal beiscsi_conn->plogin_sgl_handle = 38456733b39aSJayamohan Kallickal io_task->psgl_handle; 3846d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = 3847d2cecf0dSJayamohan Kallickal alloc_wrb_handle(phba, 3848d2cecf0dSJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid - 3849d2cecf0dSJayamohan Kallickal phba->fw_config.iscsi_cid_start); 3850d2cecf0dSJayamohan Kallickal if (!io_task->pwrb_handle) 3851d2cecf0dSJayamohan Kallickal goto free_io_hndls; 3852d2cecf0dSJayamohan Kallickal beiscsi_conn->plogin_wrb_handle = 3853d2cecf0dSJayamohan Kallickal io_task->pwrb_handle; 3854d2cecf0dSJayamohan Kallickal 38556733b39aSJayamohan Kallickal } else { 38566733b39aSJayamohan Kallickal io_task->psgl_handle = 38576733b39aSJayamohan Kallickal beiscsi_conn->plogin_sgl_handle; 3858d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = 3859d2cecf0dSJayamohan Kallickal beiscsi_conn->plogin_wrb_handle; 38606733b39aSJayamohan Kallickal } 38616733b39aSJayamohan Kallickal } else { 38626733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 38636733b39aSJayamohan Kallickal io_task->psgl_handle = alloc_mgmt_sgl_handle(phba); 38646733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 38652afc95bfSJayamohan Kallickal if (!io_task->psgl_handle) 38662afc95bfSJayamohan Kallickal goto free_hndls; 3867d2cecf0dSJayamohan Kallickal io_task->pwrb_handle = 3868d2cecf0dSJayamohan Kallickal alloc_wrb_handle(phba, 3869d2cecf0dSJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid - 3870d2cecf0dSJayamohan Kallickal phba->fw_config.iscsi_cid_start); 3871d2cecf0dSJayamohan Kallickal if (!io_task->pwrb_handle) 3872d2cecf0dSJayamohan Kallickal goto free_mgmt_hndls; 3873d2cecf0dSJayamohan Kallickal 38746733b39aSJayamohan Kallickal } 38756733b39aSJayamohan Kallickal } 3876bfead3b2SJayamohan Kallickal itt = (itt_t) cpu_to_be32(((unsigned int)io_task->pwrb_handle-> 3877bfead3b2SJayamohan Kallickal wrb_index << 16) | (unsigned int) 3878bfead3b2SJayamohan Kallickal (io_task->psgl_handle->sgl_index)); 3879bfead3b2SJayamohan Kallickal io_task->pwrb_handle->pio_handle = task; 3880bfead3b2SJayamohan Kallickal 38816733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.itt = itt; 38826733b39aSJayamohan Kallickal return 0; 38832afc95bfSJayamohan Kallickal 3884d2cecf0dSJayamohan Kallickal free_io_hndls: 3885d2cecf0dSJayamohan Kallickal spin_lock(&phba->io_sgl_lock); 3886d2cecf0dSJayamohan Kallickal free_io_sgl_handle(phba, io_task->psgl_handle); 3887d2cecf0dSJayamohan Kallickal spin_unlock(&phba->io_sgl_lock); 3888d2cecf0dSJayamohan Kallickal goto free_hndls; 3889d2cecf0dSJayamohan Kallickal free_mgmt_hndls: 3890d2cecf0dSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 3891d2cecf0dSJayamohan Kallickal free_mgmt_sgl_handle(phba, io_task->psgl_handle); 3892d2cecf0dSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 38932afc95bfSJayamohan Kallickal free_hndls: 38942afc95bfSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 38957da50879SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[ 38967da50879SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid - 38977da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 3898d2cecf0dSJayamohan Kallickal if (io_task->pwrb_handle) 38992afc95bfSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle); 39002afc95bfSJayamohan Kallickal io_task->pwrb_handle = NULL; 39012afc95bfSJayamohan Kallickal pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs, 39022afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address); 39032afc95bfSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "Alloc of SGL_ICD Failed\n"); 39042afc95bfSJayamohan Kallickal return -ENOMEM; 39056733b39aSJayamohan Kallickal } 39066733b39aSJayamohan Kallickal 39076733b39aSJayamohan Kallickal static void beiscsi_cleanup_task(struct iscsi_task *task) 39086733b39aSJayamohan Kallickal { 39096733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 39106733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 39116733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 39126733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 39132afc95bfSJayamohan Kallickal struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess; 39146733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 39156733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 39166733b39aSJayamohan Kallickal 39176733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 39187da50879SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[beiscsi_conn->beiscsi_conn_cid 39197da50879SJayamohan Kallickal - phba->fw_config.iscsi_cid_start]; 39206733b39aSJayamohan Kallickal if (io_task->pwrb_handle) { 39216733b39aSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle); 39226733b39aSJayamohan Kallickal io_task->pwrb_handle = NULL; 39236733b39aSJayamohan Kallickal } 39246733b39aSJayamohan Kallickal 39252afc95bfSJayamohan Kallickal if (io_task->cmd_bhs) { 39262afc95bfSJayamohan Kallickal pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs, 39272afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address); 39282afc95bfSJayamohan Kallickal } 39292afc95bfSJayamohan Kallickal 39306733b39aSJayamohan Kallickal if (task->sc) { 39316733b39aSJayamohan Kallickal if (io_task->psgl_handle) { 39326733b39aSJayamohan Kallickal spin_lock(&phba->io_sgl_lock); 39336733b39aSJayamohan Kallickal free_io_sgl_handle(phba, io_task->psgl_handle); 39346733b39aSJayamohan Kallickal spin_unlock(&phba->io_sgl_lock); 39356733b39aSJayamohan Kallickal io_task->psgl_handle = NULL; 39366733b39aSJayamohan Kallickal } 39376733b39aSJayamohan Kallickal } else { 39381227633aSMike Christie if (task->hdr && 39391227633aSMike Christie ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN)) 39406733b39aSJayamohan Kallickal return; 39416733b39aSJayamohan Kallickal if (io_task->psgl_handle) { 39426733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 39436733b39aSJayamohan Kallickal free_mgmt_sgl_handle(phba, io_task->psgl_handle); 39446733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 39456733b39aSJayamohan Kallickal io_task->psgl_handle = NULL; 39466733b39aSJayamohan Kallickal } 39476733b39aSJayamohan Kallickal } 39486733b39aSJayamohan Kallickal } 39496733b39aSJayamohan Kallickal 39506733b39aSJayamohan Kallickal static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg, 39516733b39aSJayamohan Kallickal unsigned int num_sg, unsigned int xferlen, 39526733b39aSJayamohan Kallickal unsigned int writedir) 39536733b39aSJayamohan Kallickal { 39546733b39aSJayamohan Kallickal 39556733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 39566733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 39576733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 39586733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 39596733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 39606733b39aSJayamohan Kallickal unsigned int doorbell = 0; 39616733b39aSJayamohan Kallickal 39626733b39aSJayamohan Kallickal pwrb = io_task->pwrb_handle->pwrb; 39636733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.exp_statsn = 0; 39646733b39aSJayamohan Kallickal io_task->bhs_len = sizeof(struct be_cmd_bhs); 39656733b39aSJayamohan Kallickal 39666733b39aSJayamohan Kallickal if (writedir) { 39676733b39aSJayamohan Kallickal memset(&io_task->cmd_bhs->iscsi_data_pdu, 0, 48); 39686733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, itt, 39696733b39aSJayamohan Kallickal &io_task->cmd_bhs->iscsi_data_pdu, 39706733b39aSJayamohan Kallickal (unsigned int)io_task->cmd_bhs->iscsi_hdr.itt); 39716733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, opcode, 39726733b39aSJayamohan Kallickal &io_task->cmd_bhs->iscsi_data_pdu, 39736733b39aSJayamohan Kallickal ISCSI_OPCODE_SCSI_DATA_OUT); 39746733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, final_bit, 39756733b39aSJayamohan Kallickal &io_task->cmd_bhs->iscsi_data_pdu, 1); 3976bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3977bfead3b2SJayamohan Kallickal INI_WR_CMD); 39786733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1); 39796733b39aSJayamohan Kallickal } else { 3980bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3981bfead3b2SJayamohan Kallickal INI_RD_CMD); 39826733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 39836733b39aSJayamohan Kallickal } 39846733b39aSJayamohan Kallickal memcpy(&io_task->cmd_bhs->iscsi_data_pdu. 39856733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_data_out, lun) / 32], 3986516f43a2SAndy Grover &io_task->cmd_bhs->iscsi_hdr.lun, sizeof(struct scsi_lun)); 39876733b39aSJayamohan Kallickal 39886733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, lun, pwrb, 3989516f43a2SAndy Grover cpu_to_be16(*(unsigned short *)&io_task->cmd_bhs->iscsi_hdr.lun)); 39906733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, xferlen); 39916733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb, 39926733b39aSJayamohan Kallickal io_task->pwrb_handle->wrb_index); 39936733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 39946733b39aSJayamohan Kallickal be32_to_cpu(task->cmdsn)); 39956733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb, 39966733b39aSJayamohan Kallickal io_task->psgl_handle->sgl_index); 39976733b39aSJayamohan Kallickal 39986733b39aSJayamohan Kallickal hwi_write_sgl(pwrb, sg, num_sg, io_task); 39996733b39aSJayamohan Kallickal 40006733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb, 40016733b39aSJayamohan Kallickal io_task->pwrb_handle->nxt_wrb_index); 40026733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb)); 40036733b39aSJayamohan Kallickal 40046733b39aSJayamohan Kallickal doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 40056733b39aSJayamohan Kallickal doorbell |= (io_task->pwrb_handle->wrb_index & 40066733b39aSJayamohan Kallickal DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; 40076733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 40086733b39aSJayamohan Kallickal 40096733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); 40106733b39aSJayamohan Kallickal return 0; 40116733b39aSJayamohan Kallickal } 40126733b39aSJayamohan Kallickal 40136733b39aSJayamohan Kallickal static int beiscsi_mtask(struct iscsi_task *task) 40146733b39aSJayamohan Kallickal { 4015dafab8e0SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 40166733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 40176733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 40186733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 40196733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 40206733b39aSJayamohan Kallickal unsigned int doorbell = 0; 4021dafab8e0SJayamohan Kallickal unsigned int cid; 40226733b39aSJayamohan Kallickal 4023bfead3b2SJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 40246733b39aSJayamohan Kallickal pwrb = io_task->pwrb_handle->pwrb; 4025caf818f1SJayamohan Kallickal memset(pwrb, 0, sizeof(*pwrb)); 40266733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 40276733b39aSJayamohan Kallickal be32_to_cpu(task->cmdsn)); 40286733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb, 40296733b39aSJayamohan Kallickal io_task->pwrb_handle->wrb_index); 40306733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb, 40316733b39aSJayamohan Kallickal io_task->psgl_handle->sgl_index); 4032dafab8e0SJayamohan Kallickal 40336733b39aSJayamohan Kallickal switch (task->hdr->opcode & ISCSI_OPCODE_MASK) { 40346733b39aSJayamohan Kallickal case ISCSI_OP_LOGIN: 4035bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 4036bfead3b2SJayamohan Kallickal TGT_DM_CMD); 40376733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 40386733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 1); 40396733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 40406733b39aSJayamohan Kallickal break; 40416733b39aSJayamohan Kallickal case ISCSI_OP_NOOP_OUT: 40421390b01bSJayamohan Kallickal if (task->hdr->ttt != ISCSI_RESERVED_TAG) { 40431390b01bSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 40441390b01bSJayamohan Kallickal TGT_DM_CMD); 40451390b01bSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, 40461390b01bSJayamohan Kallickal pwrb, 0); 4047685e16fdSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 1); 40481390b01bSJayamohan Kallickal } else { 4049bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 4050bfead3b2SJayamohan Kallickal INI_RD_CMD); 4051685e16fdSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 40521390b01bSJayamohan Kallickal } 40536733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 40546733b39aSJayamohan Kallickal break; 40556733b39aSJayamohan Kallickal case ISCSI_OP_TEXT: 4056bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 4057b30c6dabSJayamohan Kallickal TGT_DM_CMD); 40580ecb0b45SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 40596733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 40606733b39aSJayamohan Kallickal break; 40616733b39aSJayamohan Kallickal case ISCSI_OP_SCSI_TMFUNC: 4062bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 4063bfead3b2SJayamohan Kallickal INI_TMF_CMD); 40646733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 40656733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 40666733b39aSJayamohan Kallickal break; 40676733b39aSJayamohan Kallickal case ISCSI_OP_LOGOUT: 40686733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 40696733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 40706733b39aSJayamohan Kallickal HWH_TYPE_LOGOUT); 40716733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 40726733b39aSJayamohan Kallickal break; 40736733b39aSJayamohan Kallickal 40746733b39aSJayamohan Kallickal default: 40756733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "opcode =%d Not supported\n", 40766733b39aSJayamohan Kallickal task->hdr->opcode & ISCSI_OPCODE_MASK); 40776733b39aSJayamohan Kallickal return -EINVAL; 40786733b39aSJayamohan Kallickal } 40796733b39aSJayamohan Kallickal 40806733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, 408151a46250SJayamohan Kallickal task->data_count); 40826733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb, 40836733b39aSJayamohan Kallickal io_task->pwrb_handle->nxt_wrb_index); 40846733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb)); 40856733b39aSJayamohan Kallickal 4086bfead3b2SJayamohan Kallickal doorbell |= cid & DB_WRB_POST_CID_MASK; 40876733b39aSJayamohan Kallickal doorbell |= (io_task->pwrb_handle->wrb_index & 40886733b39aSJayamohan Kallickal DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; 40896733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 40906733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); 40916733b39aSJayamohan Kallickal return 0; 40926733b39aSJayamohan Kallickal } 40936733b39aSJayamohan Kallickal 40946733b39aSJayamohan Kallickal static int beiscsi_task_xmit(struct iscsi_task *task) 40956733b39aSJayamohan Kallickal { 40966733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 40976733b39aSJayamohan Kallickal struct scsi_cmnd *sc = task->sc; 40986733b39aSJayamohan Kallickal struct scatterlist *sg; 40996733b39aSJayamohan Kallickal int num_sg; 41006733b39aSJayamohan Kallickal unsigned int writedir = 0, xferlen = 0; 41016733b39aSJayamohan Kallickal 41026733b39aSJayamohan Kallickal if (!sc) 41036733b39aSJayamohan Kallickal return beiscsi_mtask(task); 41046733b39aSJayamohan Kallickal 41056733b39aSJayamohan Kallickal io_task->scsi_cmnd = sc; 41066733b39aSJayamohan Kallickal num_sg = scsi_dma_map(sc); 41076733b39aSJayamohan Kallickal if (num_sg < 0) { 41086733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, " scsi_dma_map Failed\n") 41096733b39aSJayamohan Kallickal return num_sg; 41106733b39aSJayamohan Kallickal } 41116733b39aSJayamohan Kallickal xferlen = scsi_bufflen(sc); 41126733b39aSJayamohan Kallickal sg = scsi_sglist(sc); 41136733b39aSJayamohan Kallickal if (sc->sc_data_direction == DMA_TO_DEVICE) { 41146733b39aSJayamohan Kallickal writedir = 1; 41156733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_4, "task->imm_count=0x%08x\n", 41166733b39aSJayamohan Kallickal task->imm_count); 41176733b39aSJayamohan Kallickal } else 41186733b39aSJayamohan Kallickal writedir = 0; 41196733b39aSJayamohan Kallickal return beiscsi_iotask(task, sg, num_sg, xferlen, writedir); 41206733b39aSJayamohan Kallickal } 41216733b39aSJayamohan Kallickal 412225602c97SJayamohan Kallickal static void beiscsi_quiesce(struct beiscsi_hba *phba) 41236733b39aSJayamohan Kallickal { 4124bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 4125bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 4126bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 4127bfead3b2SJayamohan Kallickal unsigned int i, msix_vec; 4128e9b91193SJayamohan Kallickal u8 *real_offset = 0; 4129e9b91193SJayamohan Kallickal u32 value = 0; 41306733b39aSJayamohan Kallickal 4131bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 4132bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 41336733b39aSJayamohan Kallickal hwi_disable_intr(phba); 4134bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 4135bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) { 4136bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 4137bfead3b2SJayamohan Kallickal free_irq(msix_vec, &phwi_context->be_eq[i]); 41388fcfb210SJayamohan Kallickal kfree(phba->msi_name[i]); 4139bfead3b2SJayamohan Kallickal } 4140bfead3b2SJayamohan Kallickal } else 41416733b39aSJayamohan Kallickal if (phba->pcidev->irq) 41426733b39aSJayamohan Kallickal free_irq(phba->pcidev->irq, phba); 4143bfead3b2SJayamohan Kallickal pci_disable_msix(phba->pcidev); 41446733b39aSJayamohan Kallickal destroy_workqueue(phba->wq); 41456733b39aSJayamohan Kallickal if (blk_iopoll_enabled) 4146bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 4147bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 4148bfead3b2SJayamohan Kallickal blk_iopoll_disable(&pbe_eq->iopoll); 4149bfead3b2SJayamohan Kallickal } 41506733b39aSJayamohan Kallickal 41516733b39aSJayamohan Kallickal beiscsi_clean_port(phba); 41526733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 4153e9b91193SJayamohan Kallickal real_offset = (u8 *)phba->csr_va + MPU_EP_SEMAPHORE; 4154e9b91193SJayamohan Kallickal 4155e9b91193SJayamohan Kallickal value = readl((void *)real_offset); 4156e9b91193SJayamohan Kallickal 4157e9b91193SJayamohan Kallickal if (value & 0x00010000) { 4158e9b91193SJayamohan Kallickal value &= 0xfffeffff; 4159e9b91193SJayamohan Kallickal writel(value, (void *)real_offset); 4160e9b91193SJayamohan Kallickal } 41616733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 41626733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 41636733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.size, 41646733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.va, 41656733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.dma); 416625602c97SJayamohan Kallickal } 416725602c97SJayamohan Kallickal 416825602c97SJayamohan Kallickal static void beiscsi_remove(struct pci_dev *pcidev) 416925602c97SJayamohan Kallickal { 417025602c97SJayamohan Kallickal 417125602c97SJayamohan Kallickal struct beiscsi_hba *phba = NULL; 417225602c97SJayamohan Kallickal 417325602c97SJayamohan Kallickal phba = pci_get_drvdata(pcidev); 417425602c97SJayamohan Kallickal if (!phba) { 417525602c97SJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_remove called with no phba\n"); 417625602c97SJayamohan Kallickal return; 417725602c97SJayamohan Kallickal } 417825602c97SJayamohan Kallickal 417925602c97SJayamohan Kallickal beiscsi_quiesce(phba); 41800b1d3cbfSJayamohan Kallickal iscsi_boot_destroy_kset(phba->boot_kset); 41816733b39aSJayamohan Kallickal iscsi_host_remove(phba->shost); 41826733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 41836733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 41848dce69ffSJayamohan Kallickal pci_disable_device(pcidev); 41856733b39aSJayamohan Kallickal } 41866733b39aSJayamohan Kallickal 418725602c97SJayamohan Kallickal static void beiscsi_shutdown(struct pci_dev *pcidev) 418825602c97SJayamohan Kallickal { 418925602c97SJayamohan Kallickal 419025602c97SJayamohan Kallickal struct beiscsi_hba *phba = NULL; 419125602c97SJayamohan Kallickal 419225602c97SJayamohan Kallickal phba = (struct beiscsi_hba *)pci_get_drvdata(pcidev); 419325602c97SJayamohan Kallickal if (!phba) { 419425602c97SJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_shutdown called with no phba\n"); 419525602c97SJayamohan Kallickal return; 419625602c97SJayamohan Kallickal } 419725602c97SJayamohan Kallickal 419825602c97SJayamohan Kallickal beiscsi_quiesce(phba); 41998dce69ffSJayamohan Kallickal pci_disable_device(pcidev); 420025602c97SJayamohan Kallickal } 420125602c97SJayamohan Kallickal 4202bfead3b2SJayamohan Kallickal static void beiscsi_msix_enable(struct beiscsi_hba *phba) 4203bfead3b2SJayamohan Kallickal { 4204bfead3b2SJayamohan Kallickal int i, status; 4205bfead3b2SJayamohan Kallickal 4206bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) 4207bfead3b2SJayamohan Kallickal phba->msix_entries[i].entry = i; 4208bfead3b2SJayamohan Kallickal 4209bfead3b2SJayamohan Kallickal status = pci_enable_msix(phba->pcidev, phba->msix_entries, 4210bfead3b2SJayamohan Kallickal (phba->num_cpus + 1)); 4211bfead3b2SJayamohan Kallickal if (!status) 4212bfead3b2SJayamohan Kallickal phba->msix_enabled = true; 4213bfead3b2SJayamohan Kallickal 4214bfead3b2SJayamohan Kallickal return; 4215bfead3b2SJayamohan Kallickal } 4216bfead3b2SJayamohan Kallickal 42176733b39aSJayamohan Kallickal static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev, 42186733b39aSJayamohan Kallickal const struct pci_device_id *id) 42196733b39aSJayamohan Kallickal { 42206733b39aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 4221bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 4222bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 4223bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 4224238f6b72SJayamohan Kallickal int ret, num_cpus, i; 4225e9b91193SJayamohan Kallickal u8 *real_offset = 0; 4226e9b91193SJayamohan Kallickal u32 value = 0; 42276733b39aSJayamohan Kallickal 42286733b39aSJayamohan Kallickal ret = beiscsi_enable_pci(pcidev); 42296733b39aSJayamohan Kallickal if (ret < 0) { 423082284c09SDan Carpenter dev_err(&pcidev->dev, "beiscsi_dev_probe-" 42316733b39aSJayamohan Kallickal " Failed to enable pci device\n"); 42326733b39aSJayamohan Kallickal return ret; 42336733b39aSJayamohan Kallickal } 42346733b39aSJayamohan Kallickal 42356733b39aSJayamohan Kallickal phba = beiscsi_hba_alloc(pcidev); 42366733b39aSJayamohan Kallickal if (!phba) { 42376733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_dev_probe-" 42386733b39aSJayamohan Kallickal " Failed in beiscsi_hba_alloc\n"); 42396733b39aSJayamohan Kallickal goto disable_pci; 42406733b39aSJayamohan Kallickal } 42416733b39aSJayamohan Kallickal 4242f98c96b0SJayamohan Kallickal switch (pcidev->device) { 4243f98c96b0SJayamohan Kallickal case BE_DEVICE_ID1: 4244f98c96b0SJayamohan Kallickal case OC_DEVICE_ID1: 4245f98c96b0SJayamohan Kallickal case OC_DEVICE_ID2: 4246f98c96b0SJayamohan Kallickal phba->generation = BE_GEN2; 4247f98c96b0SJayamohan Kallickal break; 4248f98c96b0SJayamohan Kallickal case BE_DEVICE_ID2: 4249f98c96b0SJayamohan Kallickal case OC_DEVICE_ID3: 4250f98c96b0SJayamohan Kallickal phba->generation = BE_GEN3; 4251f98c96b0SJayamohan Kallickal break; 4252f98c96b0SJayamohan Kallickal default: 4253f98c96b0SJayamohan Kallickal phba->generation = 0; 4254f98c96b0SJayamohan Kallickal } 4255f98c96b0SJayamohan Kallickal 4256bfead3b2SJayamohan Kallickal if (enable_msix) 4257bfead3b2SJayamohan Kallickal num_cpus = find_num_cpus(); 4258bfead3b2SJayamohan Kallickal else 4259bfead3b2SJayamohan Kallickal num_cpus = 1; 4260bfead3b2SJayamohan Kallickal phba->num_cpus = num_cpus; 4261bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "num_cpus = %d\n", phba->num_cpus); 4262bfead3b2SJayamohan Kallickal 4263bfead3b2SJayamohan Kallickal if (enable_msix) 4264bfead3b2SJayamohan Kallickal beiscsi_msix_enable(phba); 42656733b39aSJayamohan Kallickal ret = be_ctrl_init(phba, pcidev); 42666733b39aSJayamohan Kallickal if (ret) { 42676733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 42686733b39aSJayamohan Kallickal "Failed in be_ctrl_init\n"); 42696733b39aSJayamohan Kallickal goto hba_free; 42706733b39aSJayamohan Kallickal } 42716733b39aSJayamohan Kallickal 4272e9b91193SJayamohan Kallickal if (!num_hba) { 4273e9b91193SJayamohan Kallickal real_offset = (u8 *)phba->csr_va + MPU_EP_SEMAPHORE; 4274e9b91193SJayamohan Kallickal value = readl((void *)real_offset); 4275e9b91193SJayamohan Kallickal if (value & 0x00010000) { 4276e9b91193SJayamohan Kallickal gcrashmode++; 4277e9b91193SJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 4278e9b91193SJayamohan Kallickal "Loading Driver in crashdump mode\n"); 4279e5285860SJayamohan Kallickal ret = beiscsi_cmd_reset_function(phba); 4280e9b91193SJayamohan Kallickal if (ret) { 4281e9b91193SJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 4282e9b91193SJayamohan Kallickal "Reset Failed. Aborting Crashdump\n"); 4283e9b91193SJayamohan Kallickal goto hba_free; 4284e9b91193SJayamohan Kallickal } 4285e9b91193SJayamohan Kallickal ret = be_chk_reset_complete(phba); 4286e9b91193SJayamohan Kallickal if (ret) { 4287e9b91193SJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 4288e9b91193SJayamohan Kallickal "Failed to get out of reset." 4289e9b91193SJayamohan Kallickal "Aborting Crashdump\n"); 4290e9b91193SJayamohan Kallickal goto hba_free; 4291e9b91193SJayamohan Kallickal } 4292e9b91193SJayamohan Kallickal } else { 4293e9b91193SJayamohan Kallickal value |= 0x00010000; 4294e9b91193SJayamohan Kallickal writel(value, (void *)real_offset); 4295e9b91193SJayamohan Kallickal num_hba++; 4296e9b91193SJayamohan Kallickal } 4297e9b91193SJayamohan Kallickal } 4298e9b91193SJayamohan Kallickal 42996733b39aSJayamohan Kallickal spin_lock_init(&phba->io_sgl_lock); 43006733b39aSJayamohan Kallickal spin_lock_init(&phba->mgmt_sgl_lock); 43016733b39aSJayamohan Kallickal spin_lock_init(&phba->isr_lock); 43027da50879SJayamohan Kallickal ret = mgmt_get_fw_config(&phba->ctrl, phba); 43037da50879SJayamohan Kallickal if (ret != 0) { 43047da50879SJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 43057da50879SJayamohan Kallickal "Error getting fw config\n"); 43067da50879SJayamohan Kallickal goto free_port; 43077da50879SJayamohan Kallickal } 43087da50879SJayamohan Kallickal phba->shost->max_id = phba->fw_config.iscsi_cid_count; 43096733b39aSJayamohan Kallickal beiscsi_get_params(phba); 4310aa874f07SJayamohan Kallickal phba->shost->can_queue = phba->params.ios_per_ctrl; 43116733b39aSJayamohan Kallickal ret = beiscsi_init_port(phba); 43126733b39aSJayamohan Kallickal if (ret < 0) { 43136733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 43146733b39aSJayamohan Kallickal "Failed in beiscsi_init_port\n"); 43156733b39aSJayamohan Kallickal goto free_port; 43166733b39aSJayamohan Kallickal } 43176733b39aSJayamohan Kallickal 4318756d29c8SJayamohan Kallickal for (i = 0; i < MAX_MCC_CMD ; i++) { 4319756d29c8SJayamohan Kallickal init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]); 4320756d29c8SJayamohan Kallickal phba->ctrl.mcc_tag[i] = i + 1; 4321756d29c8SJayamohan Kallickal phba->ctrl.mcc_numtag[i + 1] = 0; 4322756d29c8SJayamohan Kallickal phba->ctrl.mcc_tag_available++; 4323756d29c8SJayamohan Kallickal } 4324756d29c8SJayamohan Kallickal 4325756d29c8SJayamohan Kallickal phba->ctrl.mcc_alloc_index = phba->ctrl.mcc_free_index = 0; 4326756d29c8SJayamohan Kallickal 43276733b39aSJayamohan Kallickal snprintf(phba->wq_name, sizeof(phba->wq_name), "beiscsi_q_irq%u", 43286733b39aSJayamohan Kallickal phba->shost->host_no); 4329278274d5STejun Heo phba->wq = alloc_workqueue(phba->wq_name, WQ_MEM_RECLAIM, 1); 43306733b39aSJayamohan Kallickal if (!phba->wq) { 43316733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 43326733b39aSJayamohan Kallickal "Failed to allocate work queue\n"); 43336733b39aSJayamohan Kallickal goto free_twq; 43346733b39aSJayamohan Kallickal } 43356733b39aSJayamohan Kallickal 43366733b39aSJayamohan Kallickal INIT_WORK(&phba->work_cqs, beiscsi_process_all_cqs); 43376733b39aSJayamohan Kallickal 4338bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 4339bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 43406733b39aSJayamohan Kallickal if (blk_iopoll_enabled) { 4341bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 4342bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 4343bfead3b2SJayamohan Kallickal blk_iopoll_init(&pbe_eq->iopoll, be_iopoll_budget, 4344bfead3b2SJayamohan Kallickal be_iopoll); 4345bfead3b2SJayamohan Kallickal blk_iopoll_enable(&pbe_eq->iopoll); 43466733b39aSJayamohan Kallickal } 4347bfead3b2SJayamohan Kallickal } 43486733b39aSJayamohan Kallickal ret = beiscsi_init_irqs(phba); 43496733b39aSJayamohan Kallickal if (ret < 0) { 43506733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 43516733b39aSJayamohan Kallickal "Failed to beiscsi_init_irqs\n"); 43526733b39aSJayamohan Kallickal goto free_blkenbld; 43536733b39aSJayamohan Kallickal } 4354238f6b72SJayamohan Kallickal hwi_enable_intr(phba); 4355f457a46fSMike Christie 4356f457a46fSMike Christie if (beiscsi_setup_boot_info(phba)) 4357f457a46fSMike Christie /* 4358f457a46fSMike Christie * log error but continue, because we may not be using 4359f457a46fSMike Christie * iscsi boot. 4360f457a46fSMike Christie */ 4361f457a46fSMike Christie shost_printk(KERN_ERR, phba->shost, "Could not set up " 4362f457a46fSMike Christie "iSCSI boot info."); 4363f457a46fSMike Christie 43646733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "\n\n\n SUCCESS - DRIVER LOADED\n\n\n"); 43656733b39aSJayamohan Kallickal return 0; 43666733b39aSJayamohan Kallickal 43676733b39aSJayamohan Kallickal free_blkenbld: 43686733b39aSJayamohan Kallickal destroy_workqueue(phba->wq); 43696733b39aSJayamohan Kallickal if (blk_iopoll_enabled) 4370bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 4371bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 4372bfead3b2SJayamohan Kallickal blk_iopoll_disable(&pbe_eq->iopoll); 4373bfead3b2SJayamohan Kallickal } 43746733b39aSJayamohan Kallickal free_twq: 43756733b39aSJayamohan Kallickal beiscsi_clean_port(phba); 43766733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 43776733b39aSJayamohan Kallickal free_port: 4378e9b91193SJayamohan Kallickal real_offset = (u8 *)phba->csr_va + MPU_EP_SEMAPHORE; 4379e9b91193SJayamohan Kallickal 4380e9b91193SJayamohan Kallickal value = readl((void *)real_offset); 4381e9b91193SJayamohan Kallickal 4382e9b91193SJayamohan Kallickal if (value & 0x00010000) { 4383e9b91193SJayamohan Kallickal value &= 0xfffeffff; 4384e9b91193SJayamohan Kallickal writel(value, (void *)real_offset); 4385e9b91193SJayamohan Kallickal } 4386e9b91193SJayamohan Kallickal 43876733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 43886733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.size, 43896733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.va, 43906733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.dma); 43916733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 43926733b39aSJayamohan Kallickal hba_free: 4393238f6b72SJayamohan Kallickal if (phba->msix_enabled) 4394238f6b72SJayamohan Kallickal pci_disable_msix(phba->pcidev); 43956733b39aSJayamohan Kallickal iscsi_host_remove(phba->shost); 43966733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 43976733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 43986733b39aSJayamohan Kallickal disable_pci: 43996733b39aSJayamohan Kallickal pci_disable_device(pcidev); 44006733b39aSJayamohan Kallickal return ret; 44016733b39aSJayamohan Kallickal } 44026733b39aSJayamohan Kallickal 44036733b39aSJayamohan Kallickal struct iscsi_transport beiscsi_iscsi_transport = { 44046733b39aSJayamohan Kallickal .owner = THIS_MODULE, 44056733b39aSJayamohan Kallickal .name = DRV_NAME, 44069db0fb3aSJayamohan Kallickal .caps = CAP_RECOVERY_L0 | CAP_HDRDGST | CAP_TEXT_NEGO | 44076733b39aSJayamohan Kallickal CAP_MULTI_R2T | CAP_DATADGST | CAP_DATA_PATH_OFFLOAD, 44086733b39aSJayamohan Kallickal .create_session = beiscsi_session_create, 44096733b39aSJayamohan Kallickal .destroy_session = beiscsi_session_destroy, 44106733b39aSJayamohan Kallickal .create_conn = beiscsi_conn_create, 44116733b39aSJayamohan Kallickal .bind_conn = beiscsi_conn_bind, 44126733b39aSJayamohan Kallickal .destroy_conn = iscsi_conn_teardown, 44133128c6c7SMike Christie .attr_is_visible = be2iscsi_attr_is_visible, 44146733b39aSJayamohan Kallickal .set_param = beiscsi_set_param, 4415c7f7fd5bSMike Christie .get_conn_param = iscsi_conn_get_param, 44166733b39aSJayamohan Kallickal .get_session_param = iscsi_session_get_param, 44176733b39aSJayamohan Kallickal .get_host_param = beiscsi_get_host_param, 44186733b39aSJayamohan Kallickal .start_conn = beiscsi_conn_start, 4419fa95d206SMike Christie .stop_conn = iscsi_conn_stop, 44206733b39aSJayamohan Kallickal .send_pdu = iscsi_conn_send_pdu, 44216733b39aSJayamohan Kallickal .xmit_task = beiscsi_task_xmit, 44226733b39aSJayamohan Kallickal .cleanup_task = beiscsi_cleanup_task, 44236733b39aSJayamohan Kallickal .alloc_pdu = beiscsi_alloc_pdu, 44246733b39aSJayamohan Kallickal .parse_pdu_itt = beiscsi_parse_pdu, 44256733b39aSJayamohan Kallickal .get_stats = beiscsi_conn_get_stats, 4426c7f7fd5bSMike Christie .get_ep_param = beiscsi_ep_get_param, 44276733b39aSJayamohan Kallickal .ep_connect = beiscsi_ep_connect, 44286733b39aSJayamohan Kallickal .ep_poll = beiscsi_ep_poll, 44296733b39aSJayamohan Kallickal .ep_disconnect = beiscsi_ep_disconnect, 44306733b39aSJayamohan Kallickal .session_recovery_timedout = iscsi_session_recovery_timedout, 44316733b39aSJayamohan Kallickal }; 44326733b39aSJayamohan Kallickal 44336733b39aSJayamohan Kallickal static struct pci_driver beiscsi_pci_driver = { 44346733b39aSJayamohan Kallickal .name = DRV_NAME, 44356733b39aSJayamohan Kallickal .probe = beiscsi_dev_probe, 44366733b39aSJayamohan Kallickal .remove = beiscsi_remove, 443725602c97SJayamohan Kallickal .shutdown = beiscsi_shutdown, 44386733b39aSJayamohan Kallickal .id_table = beiscsi_pci_id_table 44396733b39aSJayamohan Kallickal }; 44406733b39aSJayamohan Kallickal 4441bfead3b2SJayamohan Kallickal 44426733b39aSJayamohan Kallickal static int __init beiscsi_module_init(void) 44436733b39aSJayamohan Kallickal { 44446733b39aSJayamohan Kallickal int ret; 44456733b39aSJayamohan Kallickal 44466733b39aSJayamohan Kallickal beiscsi_scsi_transport = 44476733b39aSJayamohan Kallickal iscsi_register_transport(&beiscsi_iscsi_transport); 44486733b39aSJayamohan Kallickal if (!beiscsi_scsi_transport) { 44496733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 44506733b39aSJayamohan Kallickal "beiscsi_module_init - Unable to register beiscsi" 44516733b39aSJayamohan Kallickal "transport.\n"); 4452f55a24f2SJayamohan Kallickal return -ENOMEM; 44536733b39aSJayamohan Kallickal } 44546733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "In beiscsi_module_init, tt=%p\n", 44556733b39aSJayamohan Kallickal &beiscsi_iscsi_transport); 44566733b39aSJayamohan Kallickal 44576733b39aSJayamohan Kallickal ret = pci_register_driver(&beiscsi_pci_driver); 44586733b39aSJayamohan Kallickal if (ret) { 44596733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 44606733b39aSJayamohan Kallickal "beiscsi_module_init - Unable to register" 44616733b39aSJayamohan Kallickal "beiscsi pci driver.\n"); 44626733b39aSJayamohan Kallickal goto unregister_iscsi_transport; 44636733b39aSJayamohan Kallickal } 44646733b39aSJayamohan Kallickal return 0; 44656733b39aSJayamohan Kallickal 44666733b39aSJayamohan Kallickal unregister_iscsi_transport: 44676733b39aSJayamohan Kallickal iscsi_unregister_transport(&beiscsi_iscsi_transport); 44686733b39aSJayamohan Kallickal return ret; 44696733b39aSJayamohan Kallickal } 44706733b39aSJayamohan Kallickal 44716733b39aSJayamohan Kallickal static void __exit beiscsi_module_exit(void) 44726733b39aSJayamohan Kallickal { 44736733b39aSJayamohan Kallickal pci_unregister_driver(&beiscsi_pci_driver); 44746733b39aSJayamohan Kallickal iscsi_unregister_transport(&beiscsi_iscsi_transport); 44756733b39aSJayamohan Kallickal } 44766733b39aSJayamohan Kallickal 44776733b39aSJayamohan Kallickal module_init(beiscsi_module_init); 44786733b39aSJayamohan Kallickal module_exit(beiscsi_module_exit); 4479