16733b39aSJayamohan Kallickal /** 2d2eeb1acSJayamohan Kallickal * Copyright (C) 2005 - 2010 ServerEngines 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 * 106733b39aSJayamohan Kallickal * Written by: Jayamohan Kallickal (jayamohank@serverengines.com) 116733b39aSJayamohan Kallickal * 126733b39aSJayamohan Kallickal * Contact Information: 136733b39aSJayamohan Kallickal * linux-drivers@serverengines.com 146733b39aSJayamohan Kallickal * 156733b39aSJayamohan Kallickal * ServerEngines 166733b39aSJayamohan Kallickal * 209 N. Fair Oaks Ave 176733b39aSJayamohan Kallickal * Sunnyvale, CA 94085 186733b39aSJayamohan Kallickal * 196733b39aSJayamohan 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> 296733b39aSJayamohan Kallickal 306733b39aSJayamohan Kallickal #include <scsi/libiscsi.h> 316733b39aSJayamohan Kallickal #include <scsi/scsi_transport_iscsi.h> 326733b39aSJayamohan Kallickal #include <scsi/scsi_transport.h> 336733b39aSJayamohan Kallickal #include <scsi/scsi_cmnd.h> 346733b39aSJayamohan Kallickal #include <scsi/scsi_device.h> 356733b39aSJayamohan Kallickal #include <scsi/scsi_host.h> 366733b39aSJayamohan Kallickal #include <scsi/scsi.h> 376733b39aSJayamohan Kallickal #include "be_main.h" 386733b39aSJayamohan Kallickal #include "be_iscsi.h" 396733b39aSJayamohan Kallickal #include "be_mgmt.h" 406733b39aSJayamohan Kallickal 416733b39aSJayamohan Kallickal static unsigned int be_iopoll_budget = 10; 426733b39aSJayamohan Kallickal static unsigned int be_max_phys_size = 64; 43bfead3b2SJayamohan Kallickal static unsigned int enable_msix = 1; 446733b39aSJayamohan Kallickal 456733b39aSJayamohan Kallickal MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table); 466733b39aSJayamohan Kallickal MODULE_DESCRIPTION(DRV_DESC " " BUILD_STR); 476733b39aSJayamohan Kallickal MODULE_AUTHOR("ServerEngines Corporation"); 486733b39aSJayamohan Kallickal MODULE_LICENSE("GPL"); 496733b39aSJayamohan Kallickal module_param(be_iopoll_budget, int, 0); 506733b39aSJayamohan Kallickal module_param(enable_msix, int, 0); 516733b39aSJayamohan Kallickal module_param(be_max_phys_size, uint, S_IRUGO); 526733b39aSJayamohan Kallickal MODULE_PARM_DESC(be_max_phys_size, "Maximum Size (In Kilobytes) of physically" 536733b39aSJayamohan Kallickal "contiguous memory that can be allocated." 546733b39aSJayamohan Kallickal "Range is 16 - 128"); 556733b39aSJayamohan Kallickal 566733b39aSJayamohan Kallickal static int beiscsi_slave_configure(struct scsi_device *sdev) 576733b39aSJayamohan Kallickal { 586733b39aSJayamohan Kallickal blk_queue_max_segment_size(sdev->request_queue, 65536); 596733b39aSJayamohan Kallickal return 0; 606733b39aSJayamohan Kallickal } 616733b39aSJayamohan Kallickal 624183122dSJayamohan Kallickal static int beiscsi_eh_abort(struct scsi_cmnd *sc) 634183122dSJayamohan Kallickal { 644183122dSJayamohan Kallickal struct iscsi_cls_session *cls_session; 654183122dSJayamohan Kallickal struct iscsi_task *aborted_task = (struct iscsi_task *)sc->SCp.ptr; 664183122dSJayamohan Kallickal struct beiscsi_io_task *aborted_io_task; 674183122dSJayamohan Kallickal struct iscsi_conn *conn; 684183122dSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 694183122dSJayamohan Kallickal struct beiscsi_hba *phba; 704183122dSJayamohan Kallickal struct iscsi_session *session; 714183122dSJayamohan Kallickal struct invalidate_command_table *inv_tbl; 724183122dSJayamohan Kallickal unsigned int cid, tag, num_invalidate; 734183122dSJayamohan Kallickal 744183122dSJayamohan Kallickal cls_session = starget_to_session(scsi_target(sc->device)); 754183122dSJayamohan Kallickal session = cls_session->dd_data; 764183122dSJayamohan Kallickal 774183122dSJayamohan Kallickal spin_lock_bh(&session->lock); 784183122dSJayamohan Kallickal if (!aborted_task || !aborted_task->sc) { 794183122dSJayamohan Kallickal /* we raced */ 804183122dSJayamohan Kallickal spin_unlock_bh(&session->lock); 814183122dSJayamohan Kallickal return SUCCESS; 824183122dSJayamohan Kallickal } 834183122dSJayamohan Kallickal 844183122dSJayamohan Kallickal aborted_io_task = aborted_task->dd_data; 854183122dSJayamohan Kallickal if (!aborted_io_task->scsi_cmnd) { 864183122dSJayamohan Kallickal /* raced or invalid command */ 874183122dSJayamohan Kallickal spin_unlock_bh(&session->lock); 884183122dSJayamohan Kallickal return SUCCESS; 894183122dSJayamohan Kallickal } 904183122dSJayamohan Kallickal spin_unlock_bh(&session->lock); 914183122dSJayamohan Kallickal conn = aborted_task->conn; 924183122dSJayamohan Kallickal beiscsi_conn = conn->dd_data; 934183122dSJayamohan Kallickal phba = beiscsi_conn->phba; 944183122dSJayamohan Kallickal 954183122dSJayamohan Kallickal /* invalidate iocb */ 964183122dSJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 974183122dSJayamohan Kallickal inv_tbl = phba->inv_tbl; 984183122dSJayamohan Kallickal memset(inv_tbl, 0x0, sizeof(*inv_tbl)); 994183122dSJayamohan Kallickal inv_tbl->cid = cid; 1004183122dSJayamohan Kallickal inv_tbl->icd = aborted_io_task->psgl_handle->sgl_index; 1014183122dSJayamohan Kallickal num_invalidate = 1; 1024183122dSJayamohan Kallickal tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, cid); 1034183122dSJayamohan Kallickal if (!tag) { 1044183122dSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 1054183122dSJayamohan Kallickal "mgmt_invalidate_icds could not be" 1064183122dSJayamohan Kallickal " submitted\n"); 1074183122dSJayamohan Kallickal return FAILED; 1084183122dSJayamohan Kallickal } else { 1094183122dSJayamohan Kallickal wait_event_interruptible(phba->ctrl.mcc_wait[tag], 1104183122dSJayamohan Kallickal phba->ctrl.mcc_numtag[tag]); 1114183122dSJayamohan Kallickal free_mcc_tag(&phba->ctrl, tag); 1124183122dSJayamohan Kallickal } 1134183122dSJayamohan Kallickal 1144183122dSJayamohan Kallickal return iscsi_eh_abort(sc); 1154183122dSJayamohan Kallickal } 1164183122dSJayamohan Kallickal 1174183122dSJayamohan Kallickal static int beiscsi_eh_device_reset(struct scsi_cmnd *sc) 1184183122dSJayamohan Kallickal { 1194183122dSJayamohan Kallickal struct iscsi_task *abrt_task; 1204183122dSJayamohan Kallickal struct beiscsi_io_task *abrt_io_task; 1214183122dSJayamohan Kallickal struct iscsi_conn *conn; 1224183122dSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 1234183122dSJayamohan Kallickal struct beiscsi_hba *phba; 1244183122dSJayamohan Kallickal struct iscsi_session *session; 1254183122dSJayamohan Kallickal struct iscsi_cls_session *cls_session; 1264183122dSJayamohan Kallickal struct invalidate_command_table *inv_tbl; 1274183122dSJayamohan Kallickal unsigned int cid, tag, i, num_invalidate; 1284183122dSJayamohan Kallickal int rc = FAILED; 1294183122dSJayamohan Kallickal 1304183122dSJayamohan Kallickal /* invalidate iocbs */ 1314183122dSJayamohan Kallickal cls_session = starget_to_session(scsi_target(sc->device)); 1324183122dSJayamohan Kallickal session = cls_session->dd_data; 1334183122dSJayamohan Kallickal spin_lock_bh(&session->lock); 1344183122dSJayamohan Kallickal if (!session->leadconn || session->state != ISCSI_STATE_LOGGED_IN) 1354183122dSJayamohan Kallickal goto unlock; 1364183122dSJayamohan Kallickal 1374183122dSJayamohan Kallickal conn = session->leadconn; 1384183122dSJayamohan Kallickal beiscsi_conn = conn->dd_data; 1394183122dSJayamohan Kallickal phba = beiscsi_conn->phba; 1404183122dSJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 1414183122dSJayamohan Kallickal inv_tbl = phba->inv_tbl; 1424183122dSJayamohan Kallickal memset(inv_tbl, 0x0, sizeof(*inv_tbl) * BE2_CMDS_PER_CXN); 1434183122dSJayamohan Kallickal num_invalidate = 0; 1444183122dSJayamohan Kallickal for (i = 0; i < conn->session->cmds_max; i++) { 1454183122dSJayamohan Kallickal abrt_task = conn->session->cmds[i]; 1464183122dSJayamohan Kallickal abrt_io_task = abrt_task->dd_data; 1474183122dSJayamohan Kallickal if (!abrt_task->sc || abrt_task->state == ISCSI_TASK_FREE) 1484183122dSJayamohan Kallickal continue; 1494183122dSJayamohan Kallickal 1504183122dSJayamohan Kallickal if (abrt_task->sc->device->lun != abrt_task->sc->device->lun) 1514183122dSJayamohan Kallickal continue; 1524183122dSJayamohan Kallickal 1534183122dSJayamohan Kallickal inv_tbl->cid = cid; 1544183122dSJayamohan Kallickal inv_tbl->icd = abrt_io_task->psgl_handle->sgl_index; 1554183122dSJayamohan Kallickal num_invalidate++; 1564183122dSJayamohan Kallickal inv_tbl++; 1574183122dSJayamohan Kallickal } 1584183122dSJayamohan Kallickal spin_unlock_bh(&session->lock); 1594183122dSJayamohan Kallickal inv_tbl = phba->inv_tbl; 1604183122dSJayamohan Kallickal 1614183122dSJayamohan Kallickal tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, cid); 1624183122dSJayamohan Kallickal if (!tag) { 1634183122dSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 1644183122dSJayamohan Kallickal "mgmt_invalidate_icds could not be" 1654183122dSJayamohan Kallickal " submitted\n"); 1664183122dSJayamohan Kallickal return FAILED; 1674183122dSJayamohan Kallickal } else { 1684183122dSJayamohan Kallickal wait_event_interruptible(phba->ctrl.mcc_wait[tag], 1694183122dSJayamohan Kallickal phba->ctrl.mcc_numtag[tag]); 1704183122dSJayamohan Kallickal free_mcc_tag(&phba->ctrl, tag); 1714183122dSJayamohan Kallickal } 1724183122dSJayamohan Kallickal 1734183122dSJayamohan Kallickal return iscsi_eh_device_reset(sc); 1744183122dSJayamohan Kallickal unlock: 1754183122dSJayamohan Kallickal spin_unlock_bh(&session->lock); 1764183122dSJayamohan Kallickal return rc; 1774183122dSJayamohan Kallickal } 1784183122dSJayamohan Kallickal 179bfead3b2SJayamohan Kallickal /*------------------- PCI Driver operations and data ----------------- */ 180bfead3b2SJayamohan Kallickal static DEFINE_PCI_DEVICE_TABLE(beiscsi_pci_id_table) = { 181bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) }, 182f98c96b0SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) }, 183bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) }, 184bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) }, 185bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) }, 186bfead3b2SJayamohan Kallickal { 0 } 187bfead3b2SJayamohan Kallickal }; 188bfead3b2SJayamohan Kallickal MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table); 189bfead3b2SJayamohan Kallickal 1906733b39aSJayamohan Kallickal static struct scsi_host_template beiscsi_sht = { 1916733b39aSJayamohan Kallickal .module = THIS_MODULE, 1926733b39aSJayamohan Kallickal .name = "ServerEngines 10Gbe open-iscsi Initiator Driver", 1936733b39aSJayamohan Kallickal .proc_name = DRV_NAME, 1946733b39aSJayamohan Kallickal .queuecommand = iscsi_queuecommand, 1956733b39aSJayamohan Kallickal .change_queue_depth = iscsi_change_queue_depth, 1966733b39aSJayamohan Kallickal .slave_configure = beiscsi_slave_configure, 1976733b39aSJayamohan Kallickal .target_alloc = iscsi_target_alloc, 1984183122dSJayamohan Kallickal .eh_abort_handler = beiscsi_eh_abort, 1994183122dSJayamohan Kallickal .eh_device_reset_handler = beiscsi_eh_device_reset, 200309ce156SJayamohan Kallickal .eh_target_reset_handler = iscsi_eh_session_reset, 2016733b39aSJayamohan Kallickal .sg_tablesize = BEISCSI_SGLIST_ELEMENTS, 2026733b39aSJayamohan Kallickal .can_queue = BE2_IO_DEPTH, 2036733b39aSJayamohan Kallickal .this_id = -1, 2046733b39aSJayamohan Kallickal .max_sectors = BEISCSI_MAX_SECTORS, 2056733b39aSJayamohan Kallickal .cmd_per_lun = BEISCSI_CMD_PER_LUN, 2066733b39aSJayamohan Kallickal .use_clustering = ENABLE_CLUSTERING, 2076733b39aSJayamohan Kallickal }; 2086733b39aSJayamohan Kallickal 209bfead3b2SJayamohan Kallickal static struct scsi_transport_template *beiscsi_scsi_transport; 2106733b39aSJayamohan Kallickal 2116733b39aSJayamohan Kallickal static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev) 2126733b39aSJayamohan Kallickal { 2136733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 2146733b39aSJayamohan Kallickal struct Scsi_Host *shost; 2156733b39aSJayamohan Kallickal 2166733b39aSJayamohan Kallickal shost = iscsi_host_alloc(&beiscsi_sht, sizeof(*phba), 0); 2176733b39aSJayamohan Kallickal if (!shost) { 2186733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_hba_alloc -" 2196733b39aSJayamohan Kallickal "iscsi_host_alloc failed\n"); 2206733b39aSJayamohan Kallickal return NULL; 2216733b39aSJayamohan Kallickal } 2226733b39aSJayamohan Kallickal shost->dma_boundary = pcidev->dma_mask; 2236733b39aSJayamohan Kallickal shost->max_id = BE2_MAX_SESSIONS; 2246733b39aSJayamohan Kallickal shost->max_channel = 0; 2256733b39aSJayamohan Kallickal shost->max_cmd_len = BEISCSI_MAX_CMD_LEN; 2266733b39aSJayamohan Kallickal shost->max_lun = BEISCSI_NUM_MAX_LUN; 2276733b39aSJayamohan Kallickal shost->transportt = beiscsi_scsi_transport; 2286733b39aSJayamohan Kallickal phba = iscsi_host_priv(shost); 2296733b39aSJayamohan Kallickal memset(phba, 0, sizeof(*phba)); 2306733b39aSJayamohan Kallickal phba->shost = shost; 2316733b39aSJayamohan Kallickal phba->pcidev = pci_dev_get(pcidev); 2322807afb7SJayamohan Kallickal pci_set_drvdata(pcidev, phba); 2336733b39aSJayamohan Kallickal 2346733b39aSJayamohan Kallickal if (iscsi_host_add(shost, &phba->pcidev->dev)) 2356733b39aSJayamohan Kallickal goto free_devices; 2366733b39aSJayamohan Kallickal return phba; 2376733b39aSJayamohan Kallickal 2386733b39aSJayamohan Kallickal free_devices: 2396733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 2406733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 2416733b39aSJayamohan Kallickal return NULL; 2426733b39aSJayamohan Kallickal } 2436733b39aSJayamohan Kallickal 2446733b39aSJayamohan Kallickal static void beiscsi_unmap_pci_function(struct beiscsi_hba *phba) 2456733b39aSJayamohan Kallickal { 2466733b39aSJayamohan Kallickal if (phba->csr_va) { 2476733b39aSJayamohan Kallickal iounmap(phba->csr_va); 2486733b39aSJayamohan Kallickal phba->csr_va = NULL; 2496733b39aSJayamohan Kallickal } 2506733b39aSJayamohan Kallickal if (phba->db_va) { 2516733b39aSJayamohan Kallickal iounmap(phba->db_va); 2526733b39aSJayamohan Kallickal phba->db_va = NULL; 2536733b39aSJayamohan Kallickal } 2546733b39aSJayamohan Kallickal if (phba->pci_va) { 2556733b39aSJayamohan Kallickal iounmap(phba->pci_va); 2566733b39aSJayamohan Kallickal phba->pci_va = NULL; 2576733b39aSJayamohan Kallickal } 2586733b39aSJayamohan Kallickal } 2596733b39aSJayamohan Kallickal 2606733b39aSJayamohan Kallickal static int beiscsi_map_pci_bars(struct beiscsi_hba *phba, 2616733b39aSJayamohan Kallickal struct pci_dev *pcidev) 2626733b39aSJayamohan Kallickal { 2636733b39aSJayamohan Kallickal u8 __iomem *addr; 264f98c96b0SJayamohan Kallickal int pcicfg_reg; 2656733b39aSJayamohan Kallickal 2666733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 2), 2676733b39aSJayamohan Kallickal pci_resource_len(pcidev, 2)); 2686733b39aSJayamohan Kallickal if (addr == NULL) 2696733b39aSJayamohan Kallickal return -ENOMEM; 2706733b39aSJayamohan Kallickal phba->ctrl.csr = addr; 2716733b39aSJayamohan Kallickal phba->csr_va = addr; 2726733b39aSJayamohan Kallickal phba->csr_pa.u.a64.address = pci_resource_start(pcidev, 2); 2736733b39aSJayamohan Kallickal 2746733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 4), 128 * 1024); 2756733b39aSJayamohan Kallickal if (addr == NULL) 2766733b39aSJayamohan Kallickal goto pci_map_err; 2776733b39aSJayamohan Kallickal phba->ctrl.db = addr; 2786733b39aSJayamohan Kallickal phba->db_va = addr; 2796733b39aSJayamohan Kallickal phba->db_pa.u.a64.address = pci_resource_start(pcidev, 4); 2806733b39aSJayamohan Kallickal 281f98c96b0SJayamohan Kallickal if (phba->generation == BE_GEN2) 282f98c96b0SJayamohan Kallickal pcicfg_reg = 1; 283f98c96b0SJayamohan Kallickal else 284f98c96b0SJayamohan Kallickal pcicfg_reg = 0; 285f98c96b0SJayamohan Kallickal 286f98c96b0SJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, pcicfg_reg), 287f98c96b0SJayamohan Kallickal pci_resource_len(pcidev, pcicfg_reg)); 288f98c96b0SJayamohan Kallickal 2896733b39aSJayamohan Kallickal if (addr == NULL) 2906733b39aSJayamohan Kallickal goto pci_map_err; 2916733b39aSJayamohan Kallickal phba->ctrl.pcicfg = addr; 2926733b39aSJayamohan Kallickal phba->pci_va = addr; 293f98c96b0SJayamohan Kallickal phba->pci_pa.u.a64.address = pci_resource_start(pcidev, pcicfg_reg); 2946733b39aSJayamohan Kallickal return 0; 2956733b39aSJayamohan Kallickal 2966733b39aSJayamohan Kallickal pci_map_err: 2976733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 2986733b39aSJayamohan Kallickal return -ENOMEM; 2996733b39aSJayamohan Kallickal } 3006733b39aSJayamohan Kallickal 3016733b39aSJayamohan Kallickal static int beiscsi_enable_pci(struct pci_dev *pcidev) 3026733b39aSJayamohan Kallickal { 3036733b39aSJayamohan Kallickal int ret; 3046733b39aSJayamohan Kallickal 3056733b39aSJayamohan Kallickal ret = pci_enable_device(pcidev); 3066733b39aSJayamohan Kallickal if (ret) { 3076733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_enable_pci - enable device " 3086733b39aSJayamohan Kallickal "failed. Returning -ENODEV\n"); 3096733b39aSJayamohan Kallickal return ret; 3106733b39aSJayamohan Kallickal } 3116733b39aSJayamohan Kallickal 312bfead3b2SJayamohan Kallickal pci_set_master(pcidev); 3136733b39aSJayamohan Kallickal if (pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64))) { 3146733b39aSJayamohan Kallickal ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32)); 3156733b39aSJayamohan Kallickal if (ret) { 3166733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n"); 3176733b39aSJayamohan Kallickal pci_disable_device(pcidev); 3186733b39aSJayamohan Kallickal return ret; 3196733b39aSJayamohan Kallickal } 3206733b39aSJayamohan Kallickal } 3216733b39aSJayamohan Kallickal return 0; 3226733b39aSJayamohan Kallickal } 3236733b39aSJayamohan Kallickal 3246733b39aSJayamohan Kallickal static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev) 3256733b39aSJayamohan Kallickal { 3266733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 3276733b39aSJayamohan Kallickal struct be_dma_mem *mbox_mem_alloc = &ctrl->mbox_mem_alloced; 3286733b39aSJayamohan Kallickal struct be_dma_mem *mbox_mem_align = &ctrl->mbox_mem; 3296733b39aSJayamohan Kallickal int status = 0; 3306733b39aSJayamohan Kallickal 3316733b39aSJayamohan Kallickal ctrl->pdev = pdev; 3326733b39aSJayamohan Kallickal status = beiscsi_map_pci_bars(phba, pdev); 3336733b39aSJayamohan Kallickal if (status) 3346733b39aSJayamohan Kallickal return status; 3356733b39aSJayamohan Kallickal mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16; 3366733b39aSJayamohan Kallickal mbox_mem_alloc->va = pci_alloc_consistent(pdev, 3376733b39aSJayamohan Kallickal mbox_mem_alloc->size, 3386733b39aSJayamohan Kallickal &mbox_mem_alloc->dma); 3396733b39aSJayamohan Kallickal if (!mbox_mem_alloc->va) { 3406733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 3416733b39aSJayamohan Kallickal status = -ENOMEM; 3426733b39aSJayamohan Kallickal return status; 3436733b39aSJayamohan Kallickal } 3446733b39aSJayamohan Kallickal 3456733b39aSJayamohan Kallickal mbox_mem_align->size = sizeof(struct be_mcc_mailbox); 3466733b39aSJayamohan Kallickal mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16); 3476733b39aSJayamohan Kallickal mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16); 3486733b39aSJayamohan Kallickal memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox)); 3496733b39aSJayamohan Kallickal spin_lock_init(&ctrl->mbox_lock); 350bfead3b2SJayamohan Kallickal spin_lock_init(&phba->ctrl.mcc_lock); 351bfead3b2SJayamohan Kallickal spin_lock_init(&phba->ctrl.mcc_cq_lock); 352bfead3b2SJayamohan Kallickal 3536733b39aSJayamohan Kallickal return status; 3546733b39aSJayamohan Kallickal } 3556733b39aSJayamohan Kallickal 3566733b39aSJayamohan Kallickal static void beiscsi_get_params(struct beiscsi_hba *phba) 3576733b39aSJayamohan Kallickal { 3587da50879SJayamohan Kallickal phba->params.ios_per_ctrl = (phba->fw_config.iscsi_icd_count 3597da50879SJayamohan Kallickal - (phba->fw_config.iscsi_cid_count 3607da50879SJayamohan Kallickal + BE2_TMFS 3617da50879SJayamohan Kallickal + BE2_NOPOUT_REQ)); 3627da50879SJayamohan Kallickal phba->params.cxns_per_ctrl = phba->fw_config.iscsi_cid_count; 363ed58ea2aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl = phba->fw_config.iscsi_cid_count * 2; 3647da50879SJayamohan Kallickal phba->params.icds_per_ctrl = phba->fw_config.iscsi_icd_count;; 3656733b39aSJayamohan Kallickal phba->params.num_sge_per_io = BE2_SGE; 3666733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz = BE2_DEFPDU_HDR_SZ; 3676733b39aSJayamohan Kallickal phba->params.defpdu_data_sz = BE2_DEFPDU_DATA_SZ; 3686733b39aSJayamohan Kallickal phba->params.eq_timer = 64; 3696733b39aSJayamohan Kallickal phba->params.num_eq_entries = 3707da50879SJayamohan Kallickal (((BE2_CMDS_PER_CXN * 2 + phba->fw_config.iscsi_cid_count * 2 3717da50879SJayamohan Kallickal + BE2_TMFS) / 512) + 1) * 512; 3726733b39aSJayamohan Kallickal phba->params.num_eq_entries = (phba->params.num_eq_entries < 1024) 3736733b39aSJayamohan Kallickal ? 1024 : phba->params.num_eq_entries; 3746733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "phba->params.num_eq_entries=%d\n", 3756733b39aSJayamohan Kallickal phba->params.num_eq_entries); 3766733b39aSJayamohan Kallickal phba->params.num_cq_entries = 3777da50879SJayamohan Kallickal (((BE2_CMDS_PER_CXN * 2 + phba->fw_config.iscsi_cid_count * 2 3787da50879SJayamohan Kallickal + BE2_TMFS) / 512) + 1) * 512; 3796733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn = 256; 3806733b39aSJayamohan Kallickal } 3816733b39aSJayamohan Kallickal 3826733b39aSJayamohan Kallickal static void hwi_ring_eq_db(struct beiscsi_hba *phba, 3836733b39aSJayamohan Kallickal unsigned int id, unsigned int clr_interrupt, 3846733b39aSJayamohan Kallickal unsigned int num_processed, 3856733b39aSJayamohan Kallickal unsigned char rearm, unsigned char event) 3866733b39aSJayamohan Kallickal { 3876733b39aSJayamohan Kallickal u32 val = 0; 3886733b39aSJayamohan Kallickal val |= id & DB_EQ_RING_ID_MASK; 3896733b39aSJayamohan Kallickal if (rearm) 3906733b39aSJayamohan Kallickal val |= 1 << DB_EQ_REARM_SHIFT; 3916733b39aSJayamohan Kallickal if (clr_interrupt) 3926733b39aSJayamohan Kallickal val |= 1 << DB_EQ_CLR_SHIFT; 3936733b39aSJayamohan Kallickal if (event) 3946733b39aSJayamohan Kallickal val |= 1 << DB_EQ_EVNT_SHIFT; 3956733b39aSJayamohan Kallickal val |= num_processed << DB_EQ_NUM_POPPED_SHIFT; 3966733b39aSJayamohan Kallickal iowrite32(val, phba->db_va + DB_EQ_OFFSET); 3976733b39aSJayamohan Kallickal } 3986733b39aSJayamohan Kallickal 3996733b39aSJayamohan Kallickal /** 400bfead3b2SJayamohan Kallickal * be_isr_mcc - The isr routine of the driver. 401bfead3b2SJayamohan Kallickal * @irq: Not used 402bfead3b2SJayamohan Kallickal * @dev_id: Pointer to host adapter structure 403bfead3b2SJayamohan Kallickal */ 404bfead3b2SJayamohan Kallickal static irqreturn_t be_isr_mcc(int irq, void *dev_id) 405bfead3b2SJayamohan Kallickal { 406bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 407bfead3b2SJayamohan Kallickal struct be_eq_entry *eqe = NULL; 408bfead3b2SJayamohan Kallickal struct be_queue_info *eq; 409bfead3b2SJayamohan Kallickal struct be_queue_info *mcc; 410bfead3b2SJayamohan Kallickal unsigned int num_eq_processed; 411bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 412bfead3b2SJayamohan Kallickal unsigned long flags; 413bfead3b2SJayamohan Kallickal 414bfead3b2SJayamohan Kallickal pbe_eq = dev_id; 415bfead3b2SJayamohan Kallickal eq = &pbe_eq->q; 416bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 417bfead3b2SJayamohan Kallickal mcc = &phba->ctrl.mcc_obj.cq; 418bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 419bfead3b2SJayamohan Kallickal if (!eqe) 420bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "eqe is NULL\n"); 421bfead3b2SJayamohan Kallickal 422bfead3b2SJayamohan Kallickal num_eq_processed = 0; 423bfead3b2SJayamohan Kallickal 424bfead3b2SJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 425bfead3b2SJayamohan Kallickal & EQE_VALID_MASK) { 426bfead3b2SJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 427bfead3b2SJayamohan Kallickal resource_id) / 32] & 428bfead3b2SJayamohan Kallickal EQE_RESID_MASK) >> 16) == mcc->id) { 429bfead3b2SJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 430bfead3b2SJayamohan Kallickal phba->todo_mcc_cq = 1; 431bfead3b2SJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 432bfead3b2SJayamohan Kallickal } 433bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 434bfead3b2SJayamohan Kallickal queue_tail_inc(eq); 435bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 436bfead3b2SJayamohan Kallickal num_eq_processed++; 437bfead3b2SJayamohan Kallickal } 438bfead3b2SJayamohan Kallickal if (phba->todo_mcc_cq) 439bfead3b2SJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 440bfead3b2SJayamohan Kallickal if (num_eq_processed) 441bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 1, 1); 442bfead3b2SJayamohan Kallickal 443bfead3b2SJayamohan Kallickal return IRQ_HANDLED; 444bfead3b2SJayamohan Kallickal } 445bfead3b2SJayamohan Kallickal 446bfead3b2SJayamohan Kallickal /** 447bfead3b2SJayamohan Kallickal * be_isr_msix - The isr routine of the driver. 448bfead3b2SJayamohan Kallickal * @irq: Not used 449bfead3b2SJayamohan Kallickal * @dev_id: Pointer to host adapter structure 450bfead3b2SJayamohan Kallickal */ 451bfead3b2SJayamohan Kallickal static irqreturn_t be_isr_msix(int irq, void *dev_id) 452bfead3b2SJayamohan Kallickal { 453bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 454bfead3b2SJayamohan Kallickal struct be_eq_entry *eqe = NULL; 455bfead3b2SJayamohan Kallickal struct be_queue_info *eq; 456bfead3b2SJayamohan Kallickal struct be_queue_info *cq; 457bfead3b2SJayamohan Kallickal unsigned int num_eq_processed; 458bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 459bfead3b2SJayamohan Kallickal unsigned long flags; 460bfead3b2SJayamohan Kallickal 461bfead3b2SJayamohan Kallickal pbe_eq = dev_id; 462bfead3b2SJayamohan Kallickal eq = &pbe_eq->q; 463bfead3b2SJayamohan Kallickal cq = pbe_eq->cq; 464bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 465bfead3b2SJayamohan Kallickal if (!eqe) 466bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "eqe is NULL\n"); 467bfead3b2SJayamohan Kallickal 468bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 469bfead3b2SJayamohan Kallickal num_eq_processed = 0; 470bfead3b2SJayamohan Kallickal if (blk_iopoll_enabled) { 471bfead3b2SJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 472bfead3b2SJayamohan Kallickal & EQE_VALID_MASK) { 473bfead3b2SJayamohan Kallickal if (!blk_iopoll_sched_prep(&pbe_eq->iopoll)) 474bfead3b2SJayamohan Kallickal blk_iopoll_sched(&pbe_eq->iopoll); 475bfead3b2SJayamohan Kallickal 476bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 477bfead3b2SJayamohan Kallickal queue_tail_inc(eq); 478bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 479bfead3b2SJayamohan Kallickal num_eq_processed++; 480bfead3b2SJayamohan Kallickal } 481bfead3b2SJayamohan Kallickal if (num_eq_processed) 482bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 0, 1); 483bfead3b2SJayamohan Kallickal 484bfead3b2SJayamohan Kallickal return IRQ_HANDLED; 485bfead3b2SJayamohan Kallickal } else { 486bfead3b2SJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 487bfead3b2SJayamohan Kallickal & EQE_VALID_MASK) { 488bfead3b2SJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 489bfead3b2SJayamohan Kallickal phba->todo_cq = 1; 490bfead3b2SJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 491bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 492bfead3b2SJayamohan Kallickal queue_tail_inc(eq); 493bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 494bfead3b2SJayamohan Kallickal num_eq_processed++; 495bfead3b2SJayamohan Kallickal } 496bfead3b2SJayamohan Kallickal if (phba->todo_cq) 497bfead3b2SJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 498bfead3b2SJayamohan Kallickal 499bfead3b2SJayamohan Kallickal if (num_eq_processed) 500bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 1, 1); 501bfead3b2SJayamohan Kallickal 502bfead3b2SJayamohan Kallickal return IRQ_HANDLED; 503bfead3b2SJayamohan Kallickal } 504bfead3b2SJayamohan Kallickal } 505bfead3b2SJayamohan Kallickal 506bfead3b2SJayamohan Kallickal /** 5076733b39aSJayamohan Kallickal * be_isr - The isr routine of the driver. 5086733b39aSJayamohan Kallickal * @irq: Not used 5096733b39aSJayamohan Kallickal * @dev_id: Pointer to host adapter structure 5106733b39aSJayamohan Kallickal */ 5116733b39aSJayamohan Kallickal static irqreturn_t be_isr(int irq, void *dev_id) 5126733b39aSJayamohan Kallickal { 5136733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 5146733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 5156733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 5166733b39aSJayamohan Kallickal struct be_eq_entry *eqe = NULL; 5176733b39aSJayamohan Kallickal struct be_queue_info *eq; 5186733b39aSJayamohan Kallickal struct be_queue_info *cq; 519bfead3b2SJayamohan Kallickal struct be_queue_info *mcc; 5206733b39aSJayamohan Kallickal unsigned long flags, index; 521bfead3b2SJayamohan Kallickal unsigned int num_mcceq_processed, num_ioeq_processed; 5226733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl; 523bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 5246733b39aSJayamohan Kallickal int isr; 5256733b39aSJayamohan Kallickal 5266733b39aSJayamohan Kallickal phba = dev_id; 5276733b39aSJayamohan Kallickal ctrl = &phba->ctrl;; 5286733b39aSJayamohan Kallickal isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET + 5296733b39aSJayamohan Kallickal (PCI_FUNC(ctrl->pdev->devfn) * CEV_ISR_SIZE)); 5306733b39aSJayamohan Kallickal if (!isr) 5316733b39aSJayamohan Kallickal return IRQ_NONE; 5326733b39aSJayamohan Kallickal 5336733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 5346733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 535bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[0]; 536bfead3b2SJayamohan Kallickal 537bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[0].q; 538bfead3b2SJayamohan Kallickal mcc = &phba->ctrl.mcc_obj.cq; 5396733b39aSJayamohan Kallickal index = 0; 5406733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 5416733b39aSJayamohan Kallickal if (!eqe) 5426733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "eqe is NULL\n"); 5436733b39aSJayamohan Kallickal 544bfead3b2SJayamohan Kallickal num_ioeq_processed = 0; 545bfead3b2SJayamohan Kallickal num_mcceq_processed = 0; 5466733b39aSJayamohan Kallickal if (blk_iopoll_enabled) { 5476733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 5486733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 549bfead3b2SJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 550bfead3b2SJayamohan Kallickal resource_id) / 32] & 551bfead3b2SJayamohan Kallickal EQE_RESID_MASK) >> 16) == mcc->id) { 552bfead3b2SJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 553bfead3b2SJayamohan Kallickal phba->todo_mcc_cq = 1; 554bfead3b2SJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 555bfead3b2SJayamohan Kallickal num_mcceq_processed++; 556bfead3b2SJayamohan Kallickal } else { 557bfead3b2SJayamohan Kallickal if (!blk_iopoll_sched_prep(&pbe_eq->iopoll)) 558bfead3b2SJayamohan Kallickal blk_iopoll_sched(&pbe_eq->iopoll); 559bfead3b2SJayamohan Kallickal num_ioeq_processed++; 560bfead3b2SJayamohan Kallickal } 5616733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 5626733b39aSJayamohan Kallickal queue_tail_inc(eq); 5636733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 5646733b39aSJayamohan Kallickal } 565bfead3b2SJayamohan Kallickal if (num_ioeq_processed || num_mcceq_processed) { 566bfead3b2SJayamohan Kallickal if (phba->todo_mcc_cq) 567bfead3b2SJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 568bfead3b2SJayamohan Kallickal 569bfead3b2SJayamohan Kallickal if ((num_mcceq_processed) && (!num_ioeq_processed)) 570bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 571bfead3b2SJayamohan Kallickal (num_ioeq_processed + 572bfead3b2SJayamohan Kallickal num_mcceq_processed) , 1, 1); 573bfead3b2SJayamohan Kallickal else 574bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 575bfead3b2SJayamohan Kallickal (num_ioeq_processed + 576bfead3b2SJayamohan Kallickal num_mcceq_processed), 0, 1); 577bfead3b2SJayamohan Kallickal 5786733b39aSJayamohan Kallickal return IRQ_HANDLED; 5796733b39aSJayamohan Kallickal } else 5806733b39aSJayamohan Kallickal return IRQ_NONE; 5816733b39aSJayamohan Kallickal } else { 582bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 5836733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 5846733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 5856733b39aSJayamohan Kallickal 5866733b39aSJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 5876733b39aSJayamohan Kallickal resource_id) / 32] & 5886733b39aSJayamohan Kallickal EQE_RESID_MASK) >> 16) != cq->id) { 5896733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 5906733b39aSJayamohan Kallickal phba->todo_mcc_cq = 1; 5916733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 5926733b39aSJayamohan Kallickal } else { 5936733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 5946733b39aSJayamohan Kallickal phba->todo_cq = 1; 5956733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 5966733b39aSJayamohan Kallickal } 5976733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 5986733b39aSJayamohan Kallickal queue_tail_inc(eq); 5996733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 600bfead3b2SJayamohan Kallickal num_ioeq_processed++; 6016733b39aSJayamohan Kallickal } 6026733b39aSJayamohan Kallickal if (phba->todo_cq || phba->todo_mcc_cq) 6036733b39aSJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 6046733b39aSJayamohan Kallickal 605bfead3b2SJayamohan Kallickal if (num_ioeq_processed) { 606bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 607bfead3b2SJayamohan Kallickal num_ioeq_processed, 1, 1); 6086733b39aSJayamohan Kallickal return IRQ_HANDLED; 6096733b39aSJayamohan Kallickal } else 6106733b39aSJayamohan Kallickal return IRQ_NONE; 6116733b39aSJayamohan Kallickal } 6126733b39aSJayamohan Kallickal } 6136733b39aSJayamohan Kallickal 6146733b39aSJayamohan Kallickal static int beiscsi_init_irqs(struct beiscsi_hba *phba) 6156733b39aSJayamohan Kallickal { 6166733b39aSJayamohan Kallickal struct pci_dev *pcidev = phba->pcidev; 617bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 618bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 619bfead3b2SJayamohan Kallickal int ret, msix_vec, i = 0; 620bfead3b2SJayamohan Kallickal char desc[32]; 6216733b39aSJayamohan Kallickal 622bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 623bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 624bfead3b2SJayamohan Kallickal 625bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 626bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 627bfead3b2SJayamohan Kallickal sprintf(desc, "beiscsi_msix_%04x", i); 628bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 629bfead3b2SJayamohan Kallickal ret = request_irq(msix_vec, be_isr_msix, 0, desc, 630bfead3b2SJayamohan Kallickal &phwi_context->be_eq[i]); 631bfead3b2SJayamohan Kallickal } 632bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 633bfead3b2SJayamohan Kallickal ret = request_irq(msix_vec, be_isr_mcc, 0, "beiscsi_msix_mcc", 634bfead3b2SJayamohan Kallickal &phwi_context->be_eq[i]); 635bfead3b2SJayamohan Kallickal } else { 636bfead3b2SJayamohan Kallickal ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED, 637bfead3b2SJayamohan Kallickal "beiscsi", phba); 6386733b39aSJayamohan Kallickal if (ret) { 6396733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_init_irqs-" 6406733b39aSJayamohan Kallickal "Failed to register irq\\n"); 6416733b39aSJayamohan Kallickal return ret; 6426733b39aSJayamohan Kallickal } 643bfead3b2SJayamohan Kallickal } 6446733b39aSJayamohan Kallickal return 0; 6456733b39aSJayamohan Kallickal } 6466733b39aSJayamohan Kallickal 6476733b39aSJayamohan Kallickal static void hwi_ring_cq_db(struct beiscsi_hba *phba, 6486733b39aSJayamohan Kallickal unsigned int id, unsigned int num_processed, 6496733b39aSJayamohan Kallickal unsigned char rearm, unsigned char event) 6506733b39aSJayamohan Kallickal { 6516733b39aSJayamohan Kallickal u32 val = 0; 6526733b39aSJayamohan Kallickal val |= id & DB_CQ_RING_ID_MASK; 6536733b39aSJayamohan Kallickal if (rearm) 6546733b39aSJayamohan Kallickal val |= 1 << DB_CQ_REARM_SHIFT; 6556733b39aSJayamohan Kallickal val |= num_processed << DB_CQ_NUM_POPPED_SHIFT; 6566733b39aSJayamohan Kallickal iowrite32(val, phba->db_va + DB_CQ_OFFSET); 6576733b39aSJayamohan Kallickal } 6586733b39aSJayamohan Kallickal 6596733b39aSJayamohan Kallickal static unsigned int 6606733b39aSJayamohan Kallickal beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn, 6616733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 6626733b39aSJayamohan Kallickal unsigned short cid, 6636733b39aSJayamohan Kallickal struct pdu_base *ppdu, 6646733b39aSJayamohan Kallickal unsigned long pdu_len, 6656733b39aSJayamohan Kallickal void *pbuffer, unsigned long buf_len) 6666733b39aSJayamohan Kallickal { 6676733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 6686733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 669bfead3b2SJayamohan Kallickal struct iscsi_task *task; 670bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task; 671bfead3b2SJayamohan Kallickal struct iscsi_hdr *login_hdr; 6726733b39aSJayamohan Kallickal 6736733b39aSJayamohan Kallickal switch (ppdu->dw[offsetof(struct amap_pdu_base, opcode) / 32] & 6746733b39aSJayamohan Kallickal PDUBASE_OPCODE_MASK) { 6756733b39aSJayamohan Kallickal case ISCSI_OP_NOOP_IN: 6766733b39aSJayamohan Kallickal pbuffer = NULL; 6776733b39aSJayamohan Kallickal buf_len = 0; 6786733b39aSJayamohan Kallickal break; 6796733b39aSJayamohan Kallickal case ISCSI_OP_ASYNC_EVENT: 6806733b39aSJayamohan Kallickal break; 6816733b39aSJayamohan Kallickal case ISCSI_OP_REJECT: 6826733b39aSJayamohan Kallickal WARN_ON(!pbuffer); 6836733b39aSJayamohan Kallickal WARN_ON(!(buf_len == 48)); 6846733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "In ISCSI_OP_REJECT\n"); 6856733b39aSJayamohan Kallickal break; 6866733b39aSJayamohan Kallickal case ISCSI_OP_LOGIN_RSP: 6877bd6e25cSJayamohan Kallickal case ISCSI_OP_TEXT_RSP: 688bfead3b2SJayamohan Kallickal task = conn->login_task; 689bfead3b2SJayamohan Kallickal io_task = task->dd_data; 690bfead3b2SJayamohan Kallickal login_hdr = (struct iscsi_hdr *)ppdu; 691bfead3b2SJayamohan Kallickal login_hdr->itt = io_task->libiscsi_itt; 6926733b39aSJayamohan Kallickal break; 6936733b39aSJayamohan Kallickal default: 6946733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 6956733b39aSJayamohan Kallickal "Unrecognized opcode 0x%x in async msg\n", 6966733b39aSJayamohan Kallickal (ppdu-> 6976733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_base, opcode) / 32] 6986733b39aSJayamohan Kallickal & PDUBASE_OPCODE_MASK)); 6996733b39aSJayamohan Kallickal return 1; 7006733b39aSJayamohan Kallickal } 7016733b39aSJayamohan Kallickal 7026733b39aSJayamohan Kallickal spin_lock_bh(&session->lock); 7036733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)ppdu, pbuffer, buf_len); 7046733b39aSJayamohan Kallickal spin_unlock_bh(&session->lock); 7056733b39aSJayamohan Kallickal return 0; 7066733b39aSJayamohan Kallickal } 7076733b39aSJayamohan Kallickal 7086733b39aSJayamohan Kallickal static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba) 7096733b39aSJayamohan Kallickal { 7106733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 7116733b39aSJayamohan Kallickal 7126733b39aSJayamohan Kallickal if (phba->io_sgl_hndl_avbl) { 7136733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 7146733b39aSJayamohan Kallickal "In alloc_io_sgl_handle,io_sgl_alloc_index=%d\n", 7156733b39aSJayamohan Kallickal phba->io_sgl_alloc_index); 7166733b39aSJayamohan Kallickal psgl_handle = phba->io_sgl_hndl_base[phba-> 7176733b39aSJayamohan Kallickal io_sgl_alloc_index]; 7186733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_alloc_index] = NULL; 7196733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl--; 720bfead3b2SJayamohan Kallickal if (phba->io_sgl_alloc_index == (phba->params. 721bfead3b2SJayamohan Kallickal ios_per_ctrl - 1)) 7226733b39aSJayamohan Kallickal phba->io_sgl_alloc_index = 0; 7236733b39aSJayamohan Kallickal else 7246733b39aSJayamohan Kallickal phba->io_sgl_alloc_index++; 7256733b39aSJayamohan Kallickal } else 7266733b39aSJayamohan Kallickal psgl_handle = NULL; 7276733b39aSJayamohan Kallickal return psgl_handle; 7286733b39aSJayamohan Kallickal } 7296733b39aSJayamohan Kallickal 7306733b39aSJayamohan Kallickal static void 7316733b39aSJayamohan Kallickal free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) 7326733b39aSJayamohan Kallickal { 7336733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "In free_,io_sgl_free_index=%d\n", 7346733b39aSJayamohan Kallickal phba->io_sgl_free_index); 7356733b39aSJayamohan Kallickal if (phba->io_sgl_hndl_base[phba->io_sgl_free_index]) { 7366733b39aSJayamohan Kallickal /* 7376733b39aSJayamohan Kallickal * this can happen if clean_task is called on a task that 7386733b39aSJayamohan Kallickal * failed in xmit_task or alloc_pdu. 7396733b39aSJayamohan Kallickal */ 7406733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 7416733b39aSJayamohan Kallickal "Double Free in IO SGL io_sgl_free_index=%d," 7426733b39aSJayamohan Kallickal "value there=%p\n", phba->io_sgl_free_index, 7436733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_free_index]); 7446733b39aSJayamohan Kallickal return; 7456733b39aSJayamohan Kallickal } 7466733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle; 7476733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl++; 7486733b39aSJayamohan Kallickal if (phba->io_sgl_free_index == (phba->params.ios_per_ctrl - 1)) 7496733b39aSJayamohan Kallickal phba->io_sgl_free_index = 0; 7506733b39aSJayamohan Kallickal else 7516733b39aSJayamohan Kallickal phba->io_sgl_free_index++; 7526733b39aSJayamohan Kallickal } 7536733b39aSJayamohan Kallickal 7546733b39aSJayamohan Kallickal /** 7556733b39aSJayamohan Kallickal * alloc_wrb_handle - To allocate a wrb handle 7566733b39aSJayamohan Kallickal * @phba: The hba pointer 7576733b39aSJayamohan Kallickal * @cid: The cid to use for allocation 7586733b39aSJayamohan Kallickal * 7596733b39aSJayamohan Kallickal * This happens under session_lock until submission to chip 7606733b39aSJayamohan Kallickal */ 761d5431488SJayamohan Kallickal struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid) 7626733b39aSJayamohan Kallickal { 7636733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 7646733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 765d5431488SJayamohan Kallickal struct wrb_handle *pwrb_handle, *pwrb_handle_tmp; 7666733b39aSJayamohan Kallickal 7676733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 7686733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cid]; 769d5431488SJayamohan Kallickal if (pwrb_context->wrb_handles_available >= 2) { 770bfead3b2SJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[ 771bfead3b2SJayamohan Kallickal pwrb_context->alloc_index]; 772bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available--; 773bfead3b2SJayamohan Kallickal if (pwrb_context->alloc_index == 774bfead3b2SJayamohan Kallickal (phba->params.wrbs_per_cxn - 1)) 775bfead3b2SJayamohan Kallickal pwrb_context->alloc_index = 0; 776bfead3b2SJayamohan Kallickal else 777bfead3b2SJayamohan Kallickal pwrb_context->alloc_index++; 778d5431488SJayamohan Kallickal pwrb_handle_tmp = pwrb_context->pwrb_handle_base[ 779d5431488SJayamohan Kallickal pwrb_context->alloc_index]; 780d5431488SJayamohan Kallickal pwrb_handle->nxt_wrb_index = pwrb_handle_tmp->wrb_index; 781bfead3b2SJayamohan Kallickal } else 782bfead3b2SJayamohan Kallickal pwrb_handle = NULL; 7836733b39aSJayamohan Kallickal return pwrb_handle; 7846733b39aSJayamohan Kallickal } 7856733b39aSJayamohan Kallickal 7866733b39aSJayamohan Kallickal /** 7876733b39aSJayamohan Kallickal * free_wrb_handle - To free the wrb handle back to pool 7886733b39aSJayamohan Kallickal * @phba: The hba pointer 7896733b39aSJayamohan Kallickal * @pwrb_context: The context to free from 7906733b39aSJayamohan Kallickal * @pwrb_handle: The wrb_handle to free 7916733b39aSJayamohan Kallickal * 7926733b39aSJayamohan Kallickal * This happens under session_lock until submission to chip 7936733b39aSJayamohan Kallickal */ 7946733b39aSJayamohan Kallickal static void 7956733b39aSJayamohan Kallickal free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context, 7966733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle) 7976733b39aSJayamohan Kallickal { 79832951dd8SJayamohan Kallickal pwrb_context->pwrb_handle_base[pwrb_context->free_index] = pwrb_handle; 799bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available++; 800bfead3b2SJayamohan Kallickal if (pwrb_context->free_index == (phba->params.wrbs_per_cxn - 1)) 801bfead3b2SJayamohan Kallickal pwrb_context->free_index = 0; 802bfead3b2SJayamohan Kallickal else 803bfead3b2SJayamohan Kallickal pwrb_context->free_index++; 804bfead3b2SJayamohan Kallickal 8056733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 806bfead3b2SJayamohan Kallickal "FREE WRB: pwrb_handle=%p free_index=0x%x" 8076733b39aSJayamohan Kallickal "wrb_handles_available=%d\n", 8086733b39aSJayamohan Kallickal pwrb_handle, pwrb_context->free_index, 809bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available); 8106733b39aSJayamohan Kallickal } 8116733b39aSJayamohan Kallickal 8126733b39aSJayamohan Kallickal static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba) 8136733b39aSJayamohan Kallickal { 8146733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 8156733b39aSJayamohan Kallickal 8166733b39aSJayamohan Kallickal if (phba->eh_sgl_hndl_avbl) { 8176733b39aSJayamohan Kallickal psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index]; 8186733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL; 8196733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "mgmt_sgl_alloc_index=%d=0x%x\n", 8206733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index, phba->eh_sgl_alloc_index); 8216733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl--; 8226733b39aSJayamohan Kallickal if (phba->eh_sgl_alloc_index == 8236733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 8246733b39aSJayamohan Kallickal 1)) 8256733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index = 0; 8266733b39aSJayamohan Kallickal else 8276733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index++; 8286733b39aSJayamohan Kallickal } else 8296733b39aSJayamohan Kallickal psgl_handle = NULL; 8306733b39aSJayamohan Kallickal return psgl_handle; 8316733b39aSJayamohan Kallickal } 8326733b39aSJayamohan Kallickal 8336733b39aSJayamohan Kallickal void 8346733b39aSJayamohan Kallickal free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) 8356733b39aSJayamohan Kallickal { 8366733b39aSJayamohan Kallickal 837bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "In free_mgmt_sgl_handle,eh_sgl_free_index=%d\n", 838bfead3b2SJayamohan Kallickal phba->eh_sgl_free_index); 8396733b39aSJayamohan Kallickal if (phba->eh_sgl_hndl_base[phba->eh_sgl_free_index]) { 8406733b39aSJayamohan Kallickal /* 8416733b39aSJayamohan Kallickal * this can happen if clean_task is called on a task that 8426733b39aSJayamohan Kallickal * failed in xmit_task or alloc_pdu. 8436733b39aSJayamohan Kallickal */ 8446733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 8456733b39aSJayamohan Kallickal "Double Free in eh SGL ,eh_sgl_free_index=%d\n", 8466733b39aSJayamohan Kallickal phba->eh_sgl_free_index); 8476733b39aSJayamohan Kallickal return; 8486733b39aSJayamohan Kallickal } 8496733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle; 8506733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl++; 8516733b39aSJayamohan Kallickal if (phba->eh_sgl_free_index == 8526733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 1)) 8536733b39aSJayamohan Kallickal phba->eh_sgl_free_index = 0; 8546733b39aSJayamohan Kallickal else 8556733b39aSJayamohan Kallickal phba->eh_sgl_free_index++; 8566733b39aSJayamohan Kallickal } 8576733b39aSJayamohan Kallickal 8586733b39aSJayamohan Kallickal static void 8596733b39aSJayamohan Kallickal be_complete_io(struct beiscsi_conn *beiscsi_conn, 8606733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 8616733b39aSJayamohan Kallickal { 8626733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 8636733b39aSJayamohan Kallickal struct be_status_bhs *sts_bhs = 8646733b39aSJayamohan Kallickal (struct be_status_bhs *)io_task->cmd_bhs; 8656733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 8666733b39aSJayamohan Kallickal unsigned int sense_len; 8676733b39aSJayamohan Kallickal unsigned char *sense; 8686733b39aSJayamohan Kallickal u32 resid = 0, exp_cmdsn, max_cmdsn; 8696733b39aSJayamohan Kallickal u8 rsp, status, flags; 8706733b39aSJayamohan Kallickal 871bfead3b2SJayamohan Kallickal exp_cmdsn = (psol-> 8726733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 8736733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK); 874bfead3b2SJayamohan Kallickal max_cmdsn = ((psol-> 8756733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 8766733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK) + 8776733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 8786733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 8796733b39aSJayamohan Kallickal rsp = ((psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 32] 8806733b39aSJayamohan Kallickal & SOL_RESP_MASK) >> 16); 8816733b39aSJayamohan Kallickal status = ((psol->dw[offsetof(struct amap_sol_cqe, i_sts) / 32] 8826733b39aSJayamohan Kallickal & SOL_STS_MASK) >> 8); 8836733b39aSJayamohan Kallickal flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 8846733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 8856733b39aSJayamohan Kallickal 8866733b39aSJayamohan Kallickal task->sc->result = (DID_OK << 16) | status; 8876733b39aSJayamohan Kallickal if (rsp != ISCSI_STATUS_CMD_COMPLETED) { 8886733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 8896733b39aSJayamohan Kallickal goto unmap; 8906733b39aSJayamohan Kallickal } 8916733b39aSJayamohan Kallickal 8926733b39aSJayamohan Kallickal /* bidi not initially supported */ 8936733b39aSJayamohan Kallickal if (flags & (ISCSI_FLAG_CMD_UNDERFLOW | ISCSI_FLAG_CMD_OVERFLOW)) { 8946733b39aSJayamohan Kallickal resid = (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 8956733b39aSJayamohan Kallickal 32] & SOL_RES_CNT_MASK); 8966733b39aSJayamohan Kallickal 8976733b39aSJayamohan Kallickal if (!status && (flags & ISCSI_FLAG_CMD_OVERFLOW)) 8986733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 8996733b39aSJayamohan Kallickal 9006733b39aSJayamohan Kallickal if (flags & ISCSI_FLAG_CMD_UNDERFLOW) { 9016733b39aSJayamohan Kallickal scsi_set_resid(task->sc, resid); 9026733b39aSJayamohan Kallickal if (!status && (scsi_bufflen(task->sc) - resid < 9036733b39aSJayamohan Kallickal task->sc->underflow)) 9046733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 9056733b39aSJayamohan Kallickal } 9066733b39aSJayamohan Kallickal } 9076733b39aSJayamohan Kallickal 9086733b39aSJayamohan Kallickal if (status == SAM_STAT_CHECK_CONDITION) { 909bfead3b2SJayamohan Kallickal unsigned short *slen = (unsigned short *)sts_bhs->sense_info; 9106733b39aSJayamohan Kallickal sense = sts_bhs->sense_info + sizeof(unsigned short); 911bfead3b2SJayamohan Kallickal sense_len = cpu_to_be16(*slen); 9126733b39aSJayamohan Kallickal memcpy(task->sc->sense_buffer, sense, 9136733b39aSJayamohan Kallickal min_t(u16, sense_len, SCSI_SENSE_BUFFERSIZE)); 9146733b39aSJayamohan Kallickal } 915756d29c8SJayamohan Kallickal 9166733b39aSJayamohan Kallickal if (io_task->cmd_bhs->iscsi_hdr.flags & ISCSI_FLAG_CMD_READ) { 9176733b39aSJayamohan Kallickal if (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32] 9186733b39aSJayamohan Kallickal & SOL_RES_CNT_MASK) 9196733b39aSJayamohan Kallickal conn->rxdata_octets += (psol-> 9206733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32] 9216733b39aSJayamohan Kallickal & SOL_RES_CNT_MASK); 9226733b39aSJayamohan Kallickal } 9236733b39aSJayamohan Kallickal unmap: 9246733b39aSJayamohan Kallickal scsi_dma_unmap(io_task->scsi_cmnd); 9256733b39aSJayamohan Kallickal iscsi_complete_scsi_task(task, exp_cmdsn, max_cmdsn); 9266733b39aSJayamohan Kallickal } 9276733b39aSJayamohan Kallickal 9286733b39aSJayamohan Kallickal static void 9296733b39aSJayamohan Kallickal be_complete_logout(struct beiscsi_conn *beiscsi_conn, 9306733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 9316733b39aSJayamohan Kallickal { 9326733b39aSJayamohan Kallickal struct iscsi_logout_rsp *hdr; 933bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 9346733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 9356733b39aSJayamohan Kallickal 9366733b39aSJayamohan Kallickal hdr = (struct iscsi_logout_rsp *)task->hdr; 9377bd6e25cSJayamohan Kallickal hdr->opcode = ISCSI_OP_LOGOUT_RSP; 9386733b39aSJayamohan Kallickal hdr->t2wait = 5; 9396733b39aSJayamohan Kallickal hdr->t2retain = 0; 9406733b39aSJayamohan Kallickal hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 9416733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 9426733b39aSJayamohan Kallickal hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 9436733b39aSJayamohan Kallickal 32] & SOL_RESP_MASK); 9446733b39aSJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(psol-> 9456733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 9466733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK); 9476733b39aSJayamohan Kallickal hdr->max_cmdsn = be32_to_cpu((psol-> 9486733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 9496733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK) + 9506733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 9516733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 9527bd6e25cSJayamohan Kallickal hdr->dlength[0] = 0; 9537bd6e25cSJayamohan Kallickal hdr->dlength[1] = 0; 9547bd6e25cSJayamohan Kallickal hdr->dlength[2] = 0; 9556733b39aSJayamohan Kallickal hdr->hlength = 0; 956bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 9576733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 9586733b39aSJayamohan Kallickal } 9596733b39aSJayamohan Kallickal 9606733b39aSJayamohan Kallickal static void 9616733b39aSJayamohan Kallickal be_complete_tmf(struct beiscsi_conn *beiscsi_conn, 9626733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 9636733b39aSJayamohan Kallickal { 9646733b39aSJayamohan Kallickal struct iscsi_tm_rsp *hdr; 9656733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 966bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 9676733b39aSJayamohan Kallickal 9686733b39aSJayamohan Kallickal hdr = (struct iscsi_tm_rsp *)task->hdr; 9697bd6e25cSJayamohan Kallickal hdr->opcode = ISCSI_OP_SCSI_TMFUNC_RSP; 9706733b39aSJayamohan Kallickal hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 9716733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 9726733b39aSJayamohan Kallickal hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 9736733b39aSJayamohan Kallickal 32] & SOL_RESP_MASK); 9746733b39aSJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe, 9756733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK); 9766733b39aSJayamohan Kallickal hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe, 9776733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) + 9786733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 9796733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 980bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 9816733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 9826733b39aSJayamohan Kallickal } 9836733b39aSJayamohan Kallickal 9846733b39aSJayamohan Kallickal static void 9856733b39aSJayamohan Kallickal hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn, 9866733b39aSJayamohan Kallickal struct beiscsi_hba *phba, struct sol_cqe *psol) 9876733b39aSJayamohan Kallickal { 9886733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 989bfead3b2SJayamohan Kallickal struct wrb_handle *pwrb_handle = NULL; 9906733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 991bfead3b2SJayamohan Kallickal struct iscsi_task *task; 992bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task; 9936733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 9946733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 9956733b39aSJayamohan Kallickal 9966733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 9976733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[((psol-> 9986733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, cid) / 32] & 9997da50879SJayamohan Kallickal SOL_CID_MASK) >> 6) - 10007da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 10016733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol-> 10026733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, wrb_index) / 10036733b39aSJayamohan Kallickal 32] & SOL_WRB_INDEX_MASK) >> 16)]; 1004bfead3b2SJayamohan Kallickal task = pwrb_handle->pio_handle; 100535e66019SJayamohan Kallickal 1006bfead3b2SJayamohan Kallickal io_task = task->dd_data; 1007bfead3b2SJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 1008bfead3b2SJayamohan Kallickal free_mgmt_sgl_handle(phba, io_task->psgl_handle); 1009bfead3b2SJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 10106733b39aSJayamohan Kallickal spin_lock_bh(&session->lock); 10116733b39aSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, pwrb_handle); 10126733b39aSJayamohan Kallickal spin_unlock_bh(&session->lock); 10136733b39aSJayamohan Kallickal } 10146733b39aSJayamohan Kallickal 10156733b39aSJayamohan Kallickal static void 10166733b39aSJayamohan Kallickal be_complete_nopin_resp(struct beiscsi_conn *beiscsi_conn, 10176733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 10186733b39aSJayamohan Kallickal { 10196733b39aSJayamohan Kallickal struct iscsi_nopin *hdr; 10206733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 1021bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 10226733b39aSJayamohan Kallickal 10236733b39aSJayamohan Kallickal hdr = (struct iscsi_nopin *)task->hdr; 10246733b39aSJayamohan Kallickal hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 10256733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 10266733b39aSJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe, 10276733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK); 10286733b39aSJayamohan Kallickal hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe, 10296733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) + 10306733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 10316733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 10326733b39aSJayamohan Kallickal hdr->opcode = ISCSI_OP_NOOP_IN; 1033bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 10346733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 10356733b39aSJayamohan Kallickal } 10366733b39aSJayamohan Kallickal 10376733b39aSJayamohan Kallickal static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn, 10386733b39aSJayamohan Kallickal struct beiscsi_hba *phba, struct sol_cqe *psol) 10396733b39aSJayamohan Kallickal { 10406733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 10416733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 10426733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 10436733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 10446733b39aSJayamohan Kallickal struct iscsi_task *task; 1045bfead3b2SJayamohan Kallickal unsigned int type; 10466733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 10476733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 10486733b39aSJayamohan Kallickal 10496733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 105032951dd8SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[((psol->dw[offsetof 1051bfead3b2SJayamohan Kallickal (struct amap_sol_cqe, cid) / 32] 10527da50879SJayamohan Kallickal & SOL_CID_MASK) >> 6) - 10537da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 10546733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol-> 10556733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, wrb_index) / 10566733b39aSJayamohan Kallickal 32] & SOL_WRB_INDEX_MASK) >> 16)]; 10576733b39aSJayamohan Kallickal task = pwrb_handle->pio_handle; 10586733b39aSJayamohan Kallickal pwrb = pwrb_handle->pwrb; 1059bfead3b2SJayamohan Kallickal type = (pwrb->dw[offsetof(struct amap_iscsi_wrb, type) / 32] & 1060bfead3b2SJayamohan Kallickal WRB_TYPE_MASK) >> 28; 106132951dd8SJayamohan Kallickal 1062bfead3b2SJayamohan Kallickal spin_lock_bh(&session->lock); 1063bfead3b2SJayamohan Kallickal switch (type) { 10646733b39aSJayamohan Kallickal case HWH_TYPE_IO: 10656733b39aSJayamohan Kallickal case HWH_TYPE_IO_RD: 10666733b39aSJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == 1067dafab8e0SJayamohan Kallickal ISCSI_OP_NOOP_OUT) 10686733b39aSJayamohan Kallickal be_complete_nopin_resp(beiscsi_conn, task, psol); 1069dafab8e0SJayamohan Kallickal else 10706733b39aSJayamohan Kallickal be_complete_io(beiscsi_conn, task, psol); 10716733b39aSJayamohan Kallickal break; 10726733b39aSJayamohan Kallickal 10736733b39aSJayamohan Kallickal case HWH_TYPE_LOGOUT: 1074dafab8e0SJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT) 10756733b39aSJayamohan Kallickal be_complete_logout(beiscsi_conn, task, psol); 1076dafab8e0SJayamohan Kallickal else 1077dafab8e0SJayamohan Kallickal be_complete_tmf(beiscsi_conn, task, psol); 1078dafab8e0SJayamohan Kallickal 10796733b39aSJayamohan Kallickal break; 10806733b39aSJayamohan Kallickal 10816733b39aSJayamohan Kallickal case HWH_TYPE_LOGIN: 10826733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 10836733b39aSJayamohan Kallickal "\t\t No HWH_TYPE_LOGIN Expected in hwi_complete_cmd" 10846733b39aSJayamohan Kallickal "- Solicited path\n"); 10856733b39aSJayamohan Kallickal break; 10866733b39aSJayamohan Kallickal 10876733b39aSJayamohan Kallickal case HWH_TYPE_NOP: 10886733b39aSJayamohan Kallickal be_complete_nopin_resp(beiscsi_conn, task, psol); 10896733b39aSJayamohan Kallickal break; 10906733b39aSJayamohan Kallickal 10916733b39aSJayamohan Kallickal default: 10926733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 1093bfead3b2SJayamohan Kallickal "In hwi_complete_cmd, unknown type = %d" 1094bfead3b2SJayamohan Kallickal "wrb_index 0x%x CID 0x%x\n", type, 1095bfead3b2SJayamohan Kallickal ((psol->dw[offsetof(struct amap_iscsi_wrb, 1096bfead3b2SJayamohan Kallickal type) / 32] & SOL_WRB_INDEX_MASK) >> 16), 1097bfead3b2SJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, 1098bfead3b2SJayamohan Kallickal cid) / 32] & SOL_CID_MASK) >> 6)); 10996733b39aSJayamohan Kallickal break; 11006733b39aSJayamohan Kallickal } 110135e66019SJayamohan Kallickal 11026733b39aSJayamohan Kallickal spin_unlock_bh(&session->lock); 11036733b39aSJayamohan Kallickal } 11046733b39aSJayamohan Kallickal 11056733b39aSJayamohan Kallickal static struct list_head *hwi_get_async_busy_list(struct hwi_async_pdu_context 11066733b39aSJayamohan Kallickal *pasync_ctx, unsigned int is_header, 11076733b39aSJayamohan Kallickal unsigned int host_write_ptr) 11086733b39aSJayamohan Kallickal { 11096733b39aSJayamohan Kallickal if (is_header) 11106733b39aSJayamohan Kallickal return &pasync_ctx->async_entry[host_write_ptr]. 11116733b39aSJayamohan Kallickal header_busy_list; 11126733b39aSJayamohan Kallickal else 11136733b39aSJayamohan Kallickal return &pasync_ctx->async_entry[host_write_ptr].data_busy_list; 11146733b39aSJayamohan Kallickal } 11156733b39aSJayamohan Kallickal 11166733b39aSJayamohan Kallickal static struct async_pdu_handle * 11176733b39aSJayamohan Kallickal hwi_get_async_handle(struct beiscsi_hba *phba, 11186733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn, 11196733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, 11206733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe, unsigned int *pcq_index) 11216733b39aSJayamohan Kallickal { 11226733b39aSJayamohan Kallickal struct be_bus_address phys_addr; 11236733b39aSJayamohan Kallickal struct list_head *pbusy_list; 11246733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 11256733b39aSJayamohan Kallickal int buffer_len = 0; 11266733b39aSJayamohan Kallickal unsigned char buffer_index = -1; 11276733b39aSJayamohan Kallickal unsigned char is_header = 0; 11286733b39aSJayamohan Kallickal 11296733b39aSJayamohan Kallickal phys_addr.u.a32.address_lo = 11306733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_lo) / 32] - 11316733b39aSJayamohan Kallickal ((pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32] 11326733b39aSJayamohan Kallickal & PDUCQE_DPL_MASK) >> 16); 11336733b39aSJayamohan Kallickal phys_addr.u.a32.address_hi = 11346733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_hi) / 32]; 11356733b39aSJayamohan Kallickal 11366733b39aSJayamohan Kallickal phys_addr.u.a64.address = 11376733b39aSJayamohan Kallickal *((unsigned long long *)(&phys_addr.u.a64.address)); 11386733b39aSJayamohan Kallickal 11396733b39aSJayamohan Kallickal switch (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, code) / 32] 11406733b39aSJayamohan Kallickal & PDUCQE_CODE_MASK) { 11416733b39aSJayamohan Kallickal case UNSOL_HDR_NOTIFY: 11426733b39aSJayamohan Kallickal is_header = 1; 11436733b39aSJayamohan Kallickal 11446733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, 1, 11456733b39aSJayamohan Kallickal (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 11466733b39aSJayamohan Kallickal index) / 32] & PDUCQE_INDEX_MASK)); 11476733b39aSJayamohan Kallickal 11486733b39aSJayamohan Kallickal buffer_len = (unsigned int)(phys_addr.u.a64.address - 11496733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address); 11506733b39aSJayamohan Kallickal 11516733b39aSJayamohan Kallickal buffer_index = buffer_len / 11526733b39aSJayamohan Kallickal pasync_ctx->async_header.buffer_size; 11536733b39aSJayamohan Kallickal 11546733b39aSJayamohan Kallickal break; 11556733b39aSJayamohan Kallickal case UNSOL_DATA_NOTIFY: 11566733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, 0, (pdpdu_cqe-> 11576733b39aSJayamohan Kallickal dw[offsetof(struct amap_i_t_dpdu_cqe, 11586733b39aSJayamohan Kallickal index) / 32] & PDUCQE_INDEX_MASK)); 11596733b39aSJayamohan Kallickal buffer_len = (unsigned long)(phys_addr.u.a64.address - 11606733b39aSJayamohan Kallickal pasync_ctx->async_data.pa_base.u. 11616733b39aSJayamohan Kallickal a64.address); 11626733b39aSJayamohan Kallickal buffer_index = buffer_len / pasync_ctx->async_data.buffer_size; 11636733b39aSJayamohan Kallickal break; 11646733b39aSJayamohan Kallickal default: 11656733b39aSJayamohan Kallickal pbusy_list = NULL; 11666733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 11676733b39aSJayamohan Kallickal "Unexpected code=%d\n", 11686733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 11696733b39aSJayamohan Kallickal code) / 32] & PDUCQE_CODE_MASK); 11706733b39aSJayamohan Kallickal return NULL; 11716733b39aSJayamohan Kallickal } 11726733b39aSJayamohan Kallickal 11736733b39aSJayamohan Kallickal WARN_ON(!(buffer_index <= pasync_ctx->async_data.num_entries)); 11746733b39aSJayamohan Kallickal WARN_ON(list_empty(pbusy_list)); 11756733b39aSJayamohan Kallickal list_for_each_entry(pasync_handle, pbusy_list, link) { 11766733b39aSJayamohan Kallickal WARN_ON(pasync_handle->consumed); 11776733b39aSJayamohan Kallickal if (pasync_handle->index == buffer_index) 11786733b39aSJayamohan Kallickal break; 11796733b39aSJayamohan Kallickal } 11806733b39aSJayamohan Kallickal 11816733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 11826733b39aSJayamohan Kallickal 11837da50879SJayamohan Kallickal pasync_handle->cri = (unsigned short)beiscsi_conn->beiscsi_conn_cid - 11847da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start; 11856733b39aSJayamohan Kallickal pasync_handle->is_header = is_header; 11866733b39aSJayamohan Kallickal pasync_handle->buffer_len = ((pdpdu_cqe-> 11876733b39aSJayamohan Kallickal dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32] 11886733b39aSJayamohan Kallickal & PDUCQE_DPL_MASK) >> 16); 11896733b39aSJayamohan Kallickal 11906733b39aSJayamohan Kallickal *pcq_index = (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 11916733b39aSJayamohan Kallickal index) / 32] & PDUCQE_INDEX_MASK); 11926733b39aSJayamohan Kallickal return pasync_handle; 11936733b39aSJayamohan Kallickal } 11946733b39aSJayamohan Kallickal 11956733b39aSJayamohan Kallickal static unsigned int 11966733b39aSJayamohan Kallickal hwi_update_async_writables(struct hwi_async_pdu_context *pasync_ctx, 11976733b39aSJayamohan Kallickal unsigned int is_header, unsigned int cq_index) 11986733b39aSJayamohan Kallickal { 11996733b39aSJayamohan Kallickal struct list_head *pbusy_list; 12006733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 12016733b39aSJayamohan Kallickal unsigned int num_entries, writables = 0; 12026733b39aSJayamohan Kallickal unsigned int *pep_read_ptr, *pwritables; 12036733b39aSJayamohan Kallickal 12046733b39aSJayamohan Kallickal 12056733b39aSJayamohan Kallickal if (is_header) { 12066733b39aSJayamohan Kallickal pep_read_ptr = &pasync_ctx->async_header.ep_read_ptr; 12076733b39aSJayamohan Kallickal pwritables = &pasync_ctx->async_header.writables; 12086733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_header.num_entries; 12096733b39aSJayamohan Kallickal } else { 12106733b39aSJayamohan Kallickal pep_read_ptr = &pasync_ctx->async_data.ep_read_ptr; 12116733b39aSJayamohan Kallickal pwritables = &pasync_ctx->async_data.writables; 12126733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_data.num_entries; 12136733b39aSJayamohan Kallickal } 12146733b39aSJayamohan Kallickal 12156733b39aSJayamohan Kallickal while ((*pep_read_ptr) != cq_index) { 12166733b39aSJayamohan Kallickal (*pep_read_ptr)++; 12176733b39aSJayamohan Kallickal *pep_read_ptr = (*pep_read_ptr) % num_entries; 12186733b39aSJayamohan Kallickal 12196733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, is_header, 12206733b39aSJayamohan Kallickal *pep_read_ptr); 12216733b39aSJayamohan Kallickal if (writables == 0) 12226733b39aSJayamohan Kallickal WARN_ON(list_empty(pbusy_list)); 12236733b39aSJayamohan Kallickal 12246733b39aSJayamohan Kallickal if (!list_empty(pbusy_list)) { 12256733b39aSJayamohan Kallickal pasync_handle = list_entry(pbusy_list->next, 12266733b39aSJayamohan Kallickal struct async_pdu_handle, 12276733b39aSJayamohan Kallickal link); 12286733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 12296733b39aSJayamohan Kallickal pasync_handle->consumed = 1; 12306733b39aSJayamohan Kallickal } 12316733b39aSJayamohan Kallickal 12326733b39aSJayamohan Kallickal writables++; 12336733b39aSJayamohan Kallickal } 12346733b39aSJayamohan Kallickal 12356733b39aSJayamohan Kallickal if (!writables) { 12366733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 12376733b39aSJayamohan Kallickal "Duplicate notification received - index 0x%x!!\n", 12386733b39aSJayamohan Kallickal cq_index); 12396733b39aSJayamohan Kallickal WARN_ON(1); 12406733b39aSJayamohan Kallickal } 12416733b39aSJayamohan Kallickal 12426733b39aSJayamohan Kallickal *pwritables = *pwritables + writables; 12436733b39aSJayamohan Kallickal return 0; 12446733b39aSJayamohan Kallickal } 12456733b39aSJayamohan Kallickal 12466733b39aSJayamohan Kallickal static unsigned int hwi_free_async_msg(struct beiscsi_hba *phba, 12476733b39aSJayamohan Kallickal unsigned int cri) 12486733b39aSJayamohan Kallickal { 12496733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 12506733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 12516733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle, *tmp_handle; 12526733b39aSJayamohan Kallickal struct list_head *plist; 12536733b39aSJayamohan Kallickal unsigned int i = 0; 12546733b39aSJayamohan Kallickal 12556733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 12566733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 12576733b39aSJayamohan Kallickal 12586733b39aSJayamohan Kallickal plist = &pasync_ctx->async_entry[cri].wait_queue.list; 12596733b39aSJayamohan Kallickal 12606733b39aSJayamohan Kallickal list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link) { 12616733b39aSJayamohan Kallickal list_del(&pasync_handle->link); 12626733b39aSJayamohan Kallickal 12636733b39aSJayamohan Kallickal if (i == 0) { 12646733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 12656733b39aSJayamohan Kallickal &pasync_ctx->async_header.free_list); 12666733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries++; 12676733b39aSJayamohan Kallickal i++; 12686733b39aSJayamohan Kallickal } else { 12696733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 12706733b39aSJayamohan Kallickal &pasync_ctx->async_data.free_list); 12716733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries++; 12726733b39aSJayamohan Kallickal i++; 12736733b39aSJayamohan Kallickal } 12746733b39aSJayamohan Kallickal } 12756733b39aSJayamohan Kallickal 12766733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[cri].wait_queue.list); 12776733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_received = 0; 12786733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0; 12796733b39aSJayamohan Kallickal return 0; 12806733b39aSJayamohan Kallickal } 12816733b39aSJayamohan Kallickal 12826733b39aSJayamohan Kallickal static struct phys_addr * 12836733b39aSJayamohan Kallickal hwi_get_ring_address(struct hwi_async_pdu_context *pasync_ctx, 12846733b39aSJayamohan Kallickal unsigned int is_header, unsigned int host_write_ptr) 12856733b39aSJayamohan Kallickal { 12866733b39aSJayamohan Kallickal struct phys_addr *pasync_sge = NULL; 12876733b39aSJayamohan Kallickal 12886733b39aSJayamohan Kallickal if (is_header) 12896733b39aSJayamohan Kallickal pasync_sge = pasync_ctx->async_header.ring_base; 12906733b39aSJayamohan Kallickal else 12916733b39aSJayamohan Kallickal pasync_sge = pasync_ctx->async_data.ring_base; 12926733b39aSJayamohan Kallickal 12936733b39aSJayamohan Kallickal return pasync_sge + host_write_ptr; 12946733b39aSJayamohan Kallickal } 12956733b39aSJayamohan Kallickal 12966733b39aSJayamohan Kallickal static void hwi_post_async_buffers(struct beiscsi_hba *phba, 12976733b39aSJayamohan Kallickal unsigned int is_header) 12986733b39aSJayamohan Kallickal { 12996733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 13006733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 13016733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 13026733b39aSJayamohan Kallickal struct list_head *pfree_link, *pbusy_list; 13036733b39aSJayamohan Kallickal struct phys_addr *pasync_sge; 13046733b39aSJayamohan Kallickal unsigned int ring_id, num_entries; 13056733b39aSJayamohan Kallickal unsigned int host_write_num; 13066733b39aSJayamohan Kallickal unsigned int writables; 13076733b39aSJayamohan Kallickal unsigned int i = 0; 13086733b39aSJayamohan Kallickal u32 doorbell = 0; 13096733b39aSJayamohan Kallickal 13106733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 13116733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 13126733b39aSJayamohan Kallickal 13136733b39aSJayamohan Kallickal if (is_header) { 13146733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_header.num_entries; 13156733b39aSJayamohan Kallickal writables = min(pasync_ctx->async_header.writables, 13166733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries); 13176733b39aSJayamohan Kallickal pfree_link = pasync_ctx->async_header.free_list.next; 13186733b39aSJayamohan Kallickal host_write_num = pasync_ctx->async_header.host_write_ptr; 13196733b39aSJayamohan Kallickal ring_id = phwi_ctrlr->default_pdu_hdr.id; 13206733b39aSJayamohan Kallickal } else { 13216733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_data.num_entries; 13226733b39aSJayamohan Kallickal writables = min(pasync_ctx->async_data.writables, 13236733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries); 13246733b39aSJayamohan Kallickal pfree_link = pasync_ctx->async_data.free_list.next; 13256733b39aSJayamohan Kallickal host_write_num = pasync_ctx->async_data.host_write_ptr; 13266733b39aSJayamohan Kallickal ring_id = phwi_ctrlr->default_pdu_data.id; 13276733b39aSJayamohan Kallickal } 13286733b39aSJayamohan Kallickal 13296733b39aSJayamohan Kallickal writables = (writables / 8) * 8; 13306733b39aSJayamohan Kallickal if (writables) { 13316733b39aSJayamohan Kallickal for (i = 0; i < writables; i++) { 13326733b39aSJayamohan Kallickal pbusy_list = 13336733b39aSJayamohan Kallickal hwi_get_async_busy_list(pasync_ctx, is_header, 13346733b39aSJayamohan Kallickal host_write_num); 13356733b39aSJayamohan Kallickal pasync_handle = 13366733b39aSJayamohan Kallickal list_entry(pfree_link, struct async_pdu_handle, 13376733b39aSJayamohan Kallickal link); 13386733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 13396733b39aSJayamohan Kallickal pasync_handle->consumed = 0; 13406733b39aSJayamohan Kallickal 13416733b39aSJayamohan Kallickal pfree_link = pfree_link->next; 13426733b39aSJayamohan Kallickal 13436733b39aSJayamohan Kallickal pasync_sge = hwi_get_ring_address(pasync_ctx, 13446733b39aSJayamohan Kallickal is_header, host_write_num); 13456733b39aSJayamohan Kallickal 13466733b39aSJayamohan Kallickal pasync_sge->hi = pasync_handle->pa.u.a32.address_lo; 13476733b39aSJayamohan Kallickal pasync_sge->lo = pasync_handle->pa.u.a32.address_hi; 13486733b39aSJayamohan Kallickal 13496733b39aSJayamohan Kallickal list_move(&pasync_handle->link, pbusy_list); 13506733b39aSJayamohan Kallickal 13516733b39aSJayamohan Kallickal host_write_num++; 13526733b39aSJayamohan Kallickal host_write_num = host_write_num % num_entries; 13536733b39aSJayamohan Kallickal } 13546733b39aSJayamohan Kallickal 13556733b39aSJayamohan Kallickal if (is_header) { 13566733b39aSJayamohan Kallickal pasync_ctx->async_header.host_write_ptr = 13576733b39aSJayamohan Kallickal host_write_num; 13586733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries -= writables; 13596733b39aSJayamohan Kallickal pasync_ctx->async_header.writables -= writables; 13606733b39aSJayamohan Kallickal pasync_ctx->async_header.busy_entries += writables; 13616733b39aSJayamohan Kallickal } else { 13626733b39aSJayamohan Kallickal pasync_ctx->async_data.host_write_ptr = host_write_num; 13636733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries -= writables; 13646733b39aSJayamohan Kallickal pasync_ctx->async_data.writables -= writables; 13656733b39aSJayamohan Kallickal pasync_ctx->async_data.busy_entries += writables; 13666733b39aSJayamohan Kallickal } 13676733b39aSJayamohan Kallickal 13686733b39aSJayamohan Kallickal doorbell |= ring_id & DB_DEF_PDU_RING_ID_MASK; 13696733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_REARM_SHIFT; 13706733b39aSJayamohan Kallickal doorbell |= 0 << DB_DEF_PDU_EVENT_SHIFT; 13716733b39aSJayamohan Kallickal doorbell |= (writables & DB_DEF_PDU_CQPROC_MASK) 13726733b39aSJayamohan Kallickal << DB_DEF_PDU_CQPROC_SHIFT; 13736733b39aSJayamohan Kallickal 13746733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_RXULP0_OFFSET); 13756733b39aSJayamohan Kallickal } 13766733b39aSJayamohan Kallickal } 13776733b39aSJayamohan Kallickal 13786733b39aSJayamohan Kallickal static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba, 13796733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn, 13806733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe) 13816733b39aSJayamohan Kallickal { 13826733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 13836733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 13846733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 13856733b39aSJayamohan Kallickal unsigned int cq_index = -1; 13866733b39aSJayamohan Kallickal 13876733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 13886733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 13896733b39aSJayamohan Kallickal 13906733b39aSJayamohan Kallickal pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx, 13916733b39aSJayamohan Kallickal pdpdu_cqe, &cq_index); 13926733b39aSJayamohan Kallickal BUG_ON(pasync_handle->is_header != 0); 13936733b39aSJayamohan Kallickal if (pasync_handle->consumed == 0) 13946733b39aSJayamohan Kallickal hwi_update_async_writables(pasync_ctx, pasync_handle->is_header, 13956733b39aSJayamohan Kallickal cq_index); 13966733b39aSJayamohan Kallickal 13976733b39aSJayamohan Kallickal hwi_free_async_msg(phba, pasync_handle->cri); 13986733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, pasync_handle->is_header); 13996733b39aSJayamohan Kallickal } 14006733b39aSJayamohan Kallickal 14016733b39aSJayamohan Kallickal static unsigned int 14026733b39aSJayamohan Kallickal hwi_fwd_async_msg(struct beiscsi_conn *beiscsi_conn, 14036733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 14046733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, unsigned short cri) 14056733b39aSJayamohan Kallickal { 14066733b39aSJayamohan Kallickal struct list_head *plist; 14076733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 14086733b39aSJayamohan Kallickal void *phdr = NULL; 14096733b39aSJayamohan Kallickal unsigned int hdr_len = 0, buf_len = 0; 14106733b39aSJayamohan Kallickal unsigned int status, index = 0, offset = 0; 14116733b39aSJayamohan Kallickal void *pfirst_buffer = NULL; 14126733b39aSJayamohan Kallickal unsigned int num_buf = 0; 14136733b39aSJayamohan Kallickal 14146733b39aSJayamohan Kallickal plist = &pasync_ctx->async_entry[cri].wait_queue.list; 14156733b39aSJayamohan Kallickal 14166733b39aSJayamohan Kallickal list_for_each_entry(pasync_handle, plist, link) { 14176733b39aSJayamohan Kallickal if (index == 0) { 14186733b39aSJayamohan Kallickal phdr = pasync_handle->pbuffer; 14196733b39aSJayamohan Kallickal hdr_len = pasync_handle->buffer_len; 14206733b39aSJayamohan Kallickal } else { 14216733b39aSJayamohan Kallickal buf_len = pasync_handle->buffer_len; 14226733b39aSJayamohan Kallickal if (!num_buf) { 14236733b39aSJayamohan Kallickal pfirst_buffer = pasync_handle->pbuffer; 14246733b39aSJayamohan Kallickal num_buf++; 14256733b39aSJayamohan Kallickal } 14266733b39aSJayamohan Kallickal memcpy(pfirst_buffer + offset, 14276733b39aSJayamohan Kallickal pasync_handle->pbuffer, buf_len); 14286733b39aSJayamohan Kallickal offset = buf_len; 14296733b39aSJayamohan Kallickal } 14306733b39aSJayamohan Kallickal index++; 14316733b39aSJayamohan Kallickal } 14326733b39aSJayamohan Kallickal 14336733b39aSJayamohan Kallickal status = beiscsi_process_async_pdu(beiscsi_conn, phba, 14347da50879SJayamohan Kallickal (beiscsi_conn->beiscsi_conn_cid - 14357da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start), 14366733b39aSJayamohan Kallickal phdr, hdr_len, pfirst_buffer, 14376733b39aSJayamohan Kallickal buf_len); 14386733b39aSJayamohan Kallickal 14396733b39aSJayamohan Kallickal if (status == 0) 14406733b39aSJayamohan Kallickal hwi_free_async_msg(phba, cri); 14416733b39aSJayamohan Kallickal return 0; 14426733b39aSJayamohan Kallickal } 14436733b39aSJayamohan Kallickal 14446733b39aSJayamohan Kallickal static unsigned int 14456733b39aSJayamohan Kallickal hwi_gather_async_pdu(struct beiscsi_conn *beiscsi_conn, 14466733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 14476733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle) 14486733b39aSJayamohan Kallickal { 14496733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 14506733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 14516733b39aSJayamohan Kallickal unsigned int bytes_needed = 0, status = 0; 14526733b39aSJayamohan Kallickal unsigned short cri = pasync_handle->cri; 14536733b39aSJayamohan Kallickal struct pdu_base *ppdu; 14546733b39aSJayamohan Kallickal 14556733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 14566733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 14576733b39aSJayamohan Kallickal 14586733b39aSJayamohan Kallickal list_del(&pasync_handle->link); 14596733b39aSJayamohan Kallickal if (pasync_handle->is_header) { 14606733b39aSJayamohan Kallickal pasync_ctx->async_header.busy_entries--; 14616733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) { 14626733b39aSJayamohan Kallickal hwi_free_async_msg(phba, cri); 14636733b39aSJayamohan Kallickal BUG(); 14646733b39aSJayamohan Kallickal } 14656733b39aSJayamohan Kallickal 14666733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0; 14676733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_received = 1; 14686733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_len = 14696733b39aSJayamohan Kallickal (unsigned short)pasync_handle->buffer_len; 14706733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 14716733b39aSJayamohan Kallickal &pasync_ctx->async_entry[cri].wait_queue.list); 14726733b39aSJayamohan Kallickal 14736733b39aSJayamohan Kallickal ppdu = pasync_handle->pbuffer; 14746733b39aSJayamohan Kallickal bytes_needed = ((((ppdu->dw[offsetof(struct amap_pdu_base, 14756733b39aSJayamohan Kallickal data_len_hi) / 32] & PDUBASE_DATALENHI_MASK) << 8) & 14766733b39aSJayamohan Kallickal 0xFFFF0000) | ((be16_to_cpu((ppdu-> 14776733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_base, data_len_lo) / 32] 14786733b39aSJayamohan Kallickal & PDUBASE_DATALENLO_MASK) >> 16)) & 0x0000FFFF)); 14796733b39aSJayamohan Kallickal 14806733b39aSJayamohan Kallickal if (status == 0) { 14816733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_needed = 14826733b39aSJayamohan Kallickal bytes_needed; 14836733b39aSJayamohan Kallickal 14846733b39aSJayamohan Kallickal if (bytes_needed == 0) 14856733b39aSJayamohan Kallickal status = hwi_fwd_async_msg(beiscsi_conn, phba, 14866733b39aSJayamohan Kallickal pasync_ctx, cri); 14876733b39aSJayamohan Kallickal } 14886733b39aSJayamohan Kallickal } else { 14896733b39aSJayamohan Kallickal pasync_ctx->async_data.busy_entries--; 14906733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) { 14916733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 14926733b39aSJayamohan Kallickal &pasync_ctx->async_entry[cri].wait_queue. 14936733b39aSJayamohan Kallickal list); 14946733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue. 14956733b39aSJayamohan Kallickal bytes_received += 14966733b39aSJayamohan Kallickal (unsigned short)pasync_handle->buffer_len; 14976733b39aSJayamohan Kallickal 14986733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue. 14996733b39aSJayamohan Kallickal bytes_received >= 15006733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue. 15016733b39aSJayamohan Kallickal bytes_needed) 15026733b39aSJayamohan Kallickal status = hwi_fwd_async_msg(beiscsi_conn, phba, 15036733b39aSJayamohan Kallickal pasync_ctx, cri); 15046733b39aSJayamohan Kallickal } 15056733b39aSJayamohan Kallickal } 15066733b39aSJayamohan Kallickal return status; 15076733b39aSJayamohan Kallickal } 15086733b39aSJayamohan Kallickal 15096733b39aSJayamohan Kallickal static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn, 15106733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 15116733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe) 15126733b39aSJayamohan Kallickal { 15136733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 15146733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 15156733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 15166733b39aSJayamohan Kallickal unsigned int cq_index = -1; 15176733b39aSJayamohan Kallickal 15186733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 15196733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 15206733b39aSJayamohan Kallickal pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx, 15216733b39aSJayamohan Kallickal pdpdu_cqe, &cq_index); 15226733b39aSJayamohan Kallickal 15236733b39aSJayamohan Kallickal if (pasync_handle->consumed == 0) 15246733b39aSJayamohan Kallickal hwi_update_async_writables(pasync_ctx, pasync_handle->is_header, 15256733b39aSJayamohan Kallickal cq_index); 15266733b39aSJayamohan Kallickal hwi_gather_async_pdu(beiscsi_conn, phba, pasync_handle); 15276733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, pasync_handle->is_header); 15286733b39aSJayamohan Kallickal } 15296733b39aSJayamohan Kallickal 1530756d29c8SJayamohan Kallickal static void beiscsi_process_mcc_isr(struct beiscsi_hba *phba) 1531756d29c8SJayamohan Kallickal { 1532756d29c8SJayamohan Kallickal struct be_queue_info *mcc_cq; 1533756d29c8SJayamohan Kallickal struct be_mcc_compl *mcc_compl; 1534756d29c8SJayamohan Kallickal unsigned int num_processed = 0; 1535756d29c8SJayamohan Kallickal 1536756d29c8SJayamohan Kallickal mcc_cq = &phba->ctrl.mcc_obj.cq; 1537756d29c8SJayamohan Kallickal mcc_compl = queue_tail_node(mcc_cq); 1538756d29c8SJayamohan Kallickal mcc_compl->flags = le32_to_cpu(mcc_compl->flags); 1539756d29c8SJayamohan Kallickal while (mcc_compl->flags & CQE_FLAGS_VALID_MASK) { 1540756d29c8SJayamohan Kallickal 1541756d29c8SJayamohan Kallickal if (num_processed >= 32) { 1542756d29c8SJayamohan Kallickal hwi_ring_cq_db(phba, mcc_cq->id, 1543756d29c8SJayamohan Kallickal num_processed, 0, 0); 1544756d29c8SJayamohan Kallickal num_processed = 0; 1545756d29c8SJayamohan Kallickal } 1546756d29c8SJayamohan Kallickal if (mcc_compl->flags & CQE_FLAGS_ASYNC_MASK) { 1547756d29c8SJayamohan Kallickal /* Interpret flags as an async trailer */ 1548756d29c8SJayamohan Kallickal if (is_link_state_evt(mcc_compl->flags)) 1549756d29c8SJayamohan Kallickal /* Interpret compl as a async link evt */ 1550756d29c8SJayamohan Kallickal beiscsi_async_link_state_process(phba, 1551756d29c8SJayamohan Kallickal (struct be_async_event_link_state *) mcc_compl); 1552756d29c8SJayamohan Kallickal else 1553756d29c8SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 1554756d29c8SJayamohan Kallickal " Unsupported Async Event, flags" 1555756d29c8SJayamohan Kallickal " = 0x%08x\n", mcc_compl->flags); 1556756d29c8SJayamohan Kallickal } else if (mcc_compl->flags & CQE_FLAGS_COMPLETED_MASK) { 1557756d29c8SJayamohan Kallickal be_mcc_compl_process_isr(&phba->ctrl, mcc_compl); 1558756d29c8SJayamohan Kallickal atomic_dec(&phba->ctrl.mcc_obj.q.used); 1559756d29c8SJayamohan Kallickal } 1560756d29c8SJayamohan Kallickal 1561756d29c8SJayamohan Kallickal mcc_compl->flags = 0; 1562756d29c8SJayamohan Kallickal queue_tail_inc(mcc_cq); 1563756d29c8SJayamohan Kallickal mcc_compl = queue_tail_node(mcc_cq); 1564756d29c8SJayamohan Kallickal mcc_compl->flags = le32_to_cpu(mcc_compl->flags); 1565756d29c8SJayamohan Kallickal num_processed++; 1566756d29c8SJayamohan Kallickal } 1567756d29c8SJayamohan Kallickal 1568756d29c8SJayamohan Kallickal if (num_processed > 0) 1569756d29c8SJayamohan Kallickal hwi_ring_cq_db(phba, mcc_cq->id, num_processed, 1, 0); 1570756d29c8SJayamohan Kallickal 1571756d29c8SJayamohan Kallickal } 1572bfead3b2SJayamohan Kallickal 1573bfead3b2SJayamohan Kallickal static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq) 15746733b39aSJayamohan Kallickal { 15756733b39aSJayamohan Kallickal struct be_queue_info *cq; 15766733b39aSJayamohan Kallickal struct sol_cqe *sol; 15776733b39aSJayamohan Kallickal struct dmsg_cqe *dmsg; 15786733b39aSJayamohan Kallickal unsigned int num_processed = 0; 15796733b39aSJayamohan Kallickal unsigned int tot_nump = 0; 15806733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 1581c2462288SJayamohan Kallickal struct beiscsi_endpoint *beiscsi_ep; 1582c2462288SJayamohan Kallickal struct iscsi_endpoint *ep; 1583bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 15846733b39aSJayamohan Kallickal 1585bfead3b2SJayamohan Kallickal cq = pbe_eq->cq; 15866733b39aSJayamohan Kallickal sol = queue_tail_node(cq); 1587bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 15886733b39aSJayamohan Kallickal 15896733b39aSJayamohan Kallickal while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] & 15906733b39aSJayamohan Kallickal CQE_VALID_MASK) { 15916733b39aSJayamohan Kallickal be_dws_le_to_cpu(sol, sizeof(struct sol_cqe)); 15926733b39aSJayamohan Kallickal 1593c2462288SJayamohan Kallickal ep = phba->ep_array[(u32) ((sol-> 15946733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, cid) / 32] & 15957da50879SJayamohan Kallickal SOL_CID_MASK) >> 6) - 15967da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 159732951dd8SJayamohan Kallickal 1598c2462288SJayamohan Kallickal beiscsi_ep = ep->dd_data; 1599c2462288SJayamohan Kallickal beiscsi_conn = beiscsi_ep->conn; 1600756d29c8SJayamohan Kallickal 16016733b39aSJayamohan Kallickal if (num_processed >= 32) { 1602bfead3b2SJayamohan Kallickal hwi_ring_cq_db(phba, cq->id, 16036733b39aSJayamohan Kallickal num_processed, 0, 0); 16046733b39aSJayamohan Kallickal tot_nump += num_processed; 16056733b39aSJayamohan Kallickal num_processed = 0; 16066733b39aSJayamohan Kallickal } 16076733b39aSJayamohan Kallickal 16086733b39aSJayamohan Kallickal switch ((u32) sol->dw[offsetof(struct amap_sol_cqe, code) / 16096733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK) { 16106733b39aSJayamohan Kallickal case SOL_CMD_COMPLETE: 16116733b39aSJayamohan Kallickal hwi_complete_cmd(beiscsi_conn, phba, sol); 16126733b39aSJayamohan Kallickal break; 16136733b39aSJayamohan Kallickal case DRIVERMSG_NOTIFY: 16146733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Received DRIVERMSG_NOTIFY\n"); 16156733b39aSJayamohan Kallickal dmsg = (struct dmsg_cqe *)sol; 16166733b39aSJayamohan Kallickal hwi_complete_drvr_msgs(beiscsi_conn, phba, sol); 16176733b39aSJayamohan Kallickal break; 16186733b39aSJayamohan Kallickal case UNSOL_HDR_NOTIFY: 1619bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Received UNSOL_HDR_ NOTIFY\n"); 1620bfead3b2SJayamohan Kallickal hwi_process_default_pdu_ring(beiscsi_conn, phba, 1621bfead3b2SJayamohan Kallickal (struct i_t_dpdu_cqe *)sol); 1622bfead3b2SJayamohan Kallickal break; 16236733b39aSJayamohan Kallickal case UNSOL_DATA_NOTIFY: 1624bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Received UNSOL_DATA_NOTIFY\n"); 16256733b39aSJayamohan Kallickal hwi_process_default_pdu_ring(beiscsi_conn, phba, 16266733b39aSJayamohan Kallickal (struct i_t_dpdu_cqe *)sol); 16276733b39aSJayamohan Kallickal break; 16286733b39aSJayamohan Kallickal case CXN_INVALIDATE_INDEX_NOTIFY: 16296733b39aSJayamohan Kallickal case CMD_INVALIDATED_NOTIFY: 16306733b39aSJayamohan Kallickal case CXN_INVALIDATE_NOTIFY: 16316733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 16326733b39aSJayamohan Kallickal "Ignoring CQ Error notification for cmd/cxn" 16336733b39aSJayamohan Kallickal "invalidate\n"); 16346733b39aSJayamohan Kallickal break; 16356733b39aSJayamohan Kallickal case SOL_CMD_KILLED_DATA_DIGEST_ERR: 16366733b39aSJayamohan Kallickal case CMD_KILLED_INVALID_STATSN_RCVD: 16376733b39aSJayamohan Kallickal case CMD_KILLED_INVALID_R2T_RCVD: 16386733b39aSJayamohan Kallickal case CMD_CXN_KILLED_LUN_INVALID: 16396733b39aSJayamohan Kallickal case CMD_CXN_KILLED_ICD_INVALID: 16406733b39aSJayamohan Kallickal case CMD_CXN_KILLED_ITT_INVALID: 16416733b39aSJayamohan Kallickal case CMD_CXN_KILLED_SEQ_OUTOFORDER: 16426733b39aSJayamohan Kallickal case CMD_CXN_KILLED_INVALID_DATASN_RCVD: 16436733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 16446733b39aSJayamohan Kallickal "CQ Error notification for cmd.. " 16456733b39aSJayamohan Kallickal "code %d cid 0x%x\n", 16466733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 16476733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 16486733b39aSJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 16496733b39aSJayamohan Kallickal 32] & SOL_CID_MASK)); 16506733b39aSJayamohan Kallickal break; 16516733b39aSJayamohan Kallickal case UNSOL_DATA_DIGEST_ERROR_NOTIFY: 16526733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 16536733b39aSJayamohan Kallickal "Digest error on def pdu ring, dropping..\n"); 16546733b39aSJayamohan Kallickal hwi_flush_default_pdu_buffer(phba, beiscsi_conn, 16556733b39aSJayamohan Kallickal (struct i_t_dpdu_cqe *) sol); 16566733b39aSJayamohan Kallickal break; 16576733b39aSJayamohan Kallickal case CXN_KILLED_PDU_SIZE_EXCEEDS_DSL: 16586733b39aSJayamohan Kallickal case CXN_KILLED_BURST_LEN_MISMATCH: 16596733b39aSJayamohan Kallickal case CXN_KILLED_AHS_RCVD: 16606733b39aSJayamohan Kallickal case CXN_KILLED_HDR_DIGEST_ERR: 16616733b39aSJayamohan Kallickal case CXN_KILLED_UNKNOWN_HDR: 16626733b39aSJayamohan Kallickal case CXN_KILLED_STALE_ITT_TTT_RCVD: 16636733b39aSJayamohan Kallickal case CXN_KILLED_INVALID_ITT_TTT_RCVD: 16646733b39aSJayamohan Kallickal case CXN_KILLED_TIMED_OUT: 16656733b39aSJayamohan Kallickal case CXN_KILLED_FIN_RCVD: 16666733b39aSJayamohan Kallickal case CXN_KILLED_BAD_UNSOL_PDU_RCVD: 16676733b39aSJayamohan Kallickal case CXN_KILLED_BAD_WRB_INDEX_ERROR: 16686733b39aSJayamohan Kallickal case CXN_KILLED_OVER_RUN_RESIDUAL: 16696733b39aSJayamohan Kallickal case CXN_KILLED_UNDER_RUN_RESIDUAL: 16706733b39aSJayamohan Kallickal case CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN: 1671bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset CID " 16726733b39aSJayamohan Kallickal "0x%x...\n", 16736733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 16746733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 16757da50879SJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 16767da50879SJayamohan Kallickal 32] & CQE_CID_MASK)); 16776733b39aSJayamohan Kallickal iscsi_conn_failure(beiscsi_conn->conn, 16786733b39aSJayamohan Kallickal ISCSI_ERR_CONN_FAILED); 16796733b39aSJayamohan Kallickal break; 16806733b39aSJayamohan Kallickal case CXN_KILLED_RST_SENT: 16816733b39aSJayamohan Kallickal case CXN_KILLED_RST_RCVD: 1682bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset" 1683bfead3b2SJayamohan Kallickal "received/sent on CID 0x%x...\n", 16846733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 16856733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 16867da50879SJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 16877da50879SJayamohan Kallickal 32] & CQE_CID_MASK)); 16886733b39aSJayamohan Kallickal iscsi_conn_failure(beiscsi_conn->conn, 16896733b39aSJayamohan Kallickal ISCSI_ERR_CONN_FAILED); 16906733b39aSJayamohan Kallickal break; 16916733b39aSJayamohan Kallickal default: 16926733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error Invalid code= %d " 16936733b39aSJayamohan Kallickal "received on CID 0x%x...\n", 16946733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 16956733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 16967da50879SJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 16977da50879SJayamohan Kallickal 32] & CQE_CID_MASK)); 16986733b39aSJayamohan Kallickal break; 16996733b39aSJayamohan Kallickal } 17006733b39aSJayamohan Kallickal 17016733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_sol_cqe, valid, sol, 0); 17026733b39aSJayamohan Kallickal queue_tail_inc(cq); 17036733b39aSJayamohan Kallickal sol = queue_tail_node(cq); 17046733b39aSJayamohan Kallickal num_processed++; 17056733b39aSJayamohan Kallickal } 17066733b39aSJayamohan Kallickal 17076733b39aSJayamohan Kallickal if (num_processed > 0) { 17086733b39aSJayamohan Kallickal tot_nump += num_processed; 1709bfead3b2SJayamohan Kallickal hwi_ring_cq_db(phba, cq->id, num_processed, 1, 0); 17106733b39aSJayamohan Kallickal } 17116733b39aSJayamohan Kallickal return tot_nump; 17126733b39aSJayamohan Kallickal } 17136733b39aSJayamohan Kallickal 1714756d29c8SJayamohan Kallickal void beiscsi_process_all_cqs(struct work_struct *work) 17156733b39aSJayamohan Kallickal { 17166733b39aSJayamohan Kallickal unsigned long flags; 1717bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 1718bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 1719bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 17206733b39aSJayamohan Kallickal struct beiscsi_hba *phba = 17216733b39aSJayamohan Kallickal container_of(work, struct beiscsi_hba, work_cqs); 17226733b39aSJayamohan Kallickal 1723bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 1724bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 1725bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 1726bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[phba->num_cpus]; 1727bfead3b2SJayamohan Kallickal else 1728bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[0]; 1729bfead3b2SJayamohan Kallickal 17306733b39aSJayamohan Kallickal if (phba->todo_mcc_cq) { 17316733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 17326733b39aSJayamohan Kallickal phba->todo_mcc_cq = 0; 17336733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 1734756d29c8SJayamohan Kallickal beiscsi_process_mcc_isr(phba); 17356733b39aSJayamohan Kallickal } 17366733b39aSJayamohan Kallickal 17376733b39aSJayamohan Kallickal if (phba->todo_cq) { 17386733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 17396733b39aSJayamohan Kallickal phba->todo_cq = 0; 17406733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 1741bfead3b2SJayamohan Kallickal beiscsi_process_cq(pbe_eq); 17426733b39aSJayamohan Kallickal } 17436733b39aSJayamohan Kallickal } 17446733b39aSJayamohan Kallickal 17456733b39aSJayamohan Kallickal static int be_iopoll(struct blk_iopoll *iop, int budget) 17466733b39aSJayamohan Kallickal { 17476733b39aSJayamohan Kallickal static unsigned int ret; 17486733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 1749bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 17506733b39aSJayamohan Kallickal 1751bfead3b2SJayamohan Kallickal pbe_eq = container_of(iop, struct be_eq_obj, iopoll); 1752bfead3b2SJayamohan Kallickal ret = beiscsi_process_cq(pbe_eq); 17536733b39aSJayamohan Kallickal if (ret < budget) { 1754bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 17556733b39aSJayamohan Kallickal blk_iopoll_complete(iop); 1756bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "rearm pbe_eq->q.id =%d\n", pbe_eq->q.id); 1757bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1); 17586733b39aSJayamohan Kallickal } 17596733b39aSJayamohan Kallickal return ret; 17606733b39aSJayamohan Kallickal } 17616733b39aSJayamohan Kallickal 17626733b39aSJayamohan Kallickal static void 17636733b39aSJayamohan Kallickal hwi_write_sgl(struct iscsi_wrb *pwrb, struct scatterlist *sg, 17646733b39aSJayamohan Kallickal unsigned int num_sg, struct beiscsi_io_task *io_task) 17656733b39aSJayamohan Kallickal { 17666733b39aSJayamohan Kallickal struct iscsi_sge *psgl; 17676733b39aSJayamohan Kallickal unsigned short sg_len, index; 17686733b39aSJayamohan Kallickal unsigned int sge_len = 0; 17696733b39aSJayamohan Kallickal unsigned long long addr; 17706733b39aSJayamohan Kallickal struct scatterlist *l_sg; 17716733b39aSJayamohan Kallickal unsigned int offset; 17726733b39aSJayamohan Kallickal 17736733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb, 17746733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 17756733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb, 17766733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 17776733b39aSJayamohan Kallickal 17786733b39aSJayamohan Kallickal l_sg = sg; 177948bd86cfSJayamohan Kallickal for (index = 0; (index < num_sg) && (index < 2); index++, 178048bd86cfSJayamohan Kallickal sg = sg_next(sg)) { 17816733b39aSJayamohan Kallickal if (index == 0) { 17826733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 17836733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 17846733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb, 1785457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 17866733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb, 1787457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 17886733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb, 17896733b39aSJayamohan Kallickal sg_len); 17906733b39aSJayamohan Kallickal sge_len = sg_len; 17916733b39aSJayamohan Kallickal } else { 17926733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_r2t_offset, 17936733b39aSJayamohan Kallickal pwrb, sge_len); 17946733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 17956733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 17966733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_lo, pwrb, 1797457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 17986733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_hi, pwrb, 1799457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 18006733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_len, pwrb, 18016733b39aSJayamohan Kallickal sg_len); 18026733b39aSJayamohan Kallickal } 18036733b39aSJayamohan Kallickal } 18046733b39aSJayamohan Kallickal psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 18056733b39aSJayamohan Kallickal memset(psgl, 0, sizeof(*psgl) * BE2_SGE); 18066733b39aSJayamohan Kallickal 18076733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2); 18086733b39aSJayamohan Kallickal 18096733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 18106733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 18116733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 18126733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 18136733b39aSJayamohan Kallickal 1814caf818f1SJayamohan Kallickal if (num_sg == 1) { 1815caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1816caf818f1SJayamohan Kallickal 1); 1817caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 1818caf818f1SJayamohan Kallickal 0); 1819caf818f1SJayamohan Kallickal } else if (num_sg == 2) { 1820caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1821caf818f1SJayamohan Kallickal 0); 1822caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 1823caf818f1SJayamohan Kallickal 1); 1824caf818f1SJayamohan Kallickal } else { 1825caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1826caf818f1SJayamohan Kallickal 0); 1827caf818f1SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 1828caf818f1SJayamohan Kallickal 0); 1829caf818f1SJayamohan Kallickal } 18306733b39aSJayamohan Kallickal sg = l_sg; 18316733b39aSJayamohan Kallickal psgl++; 18326733b39aSJayamohan Kallickal psgl++; 18336733b39aSJayamohan Kallickal offset = 0; 183448bd86cfSJayamohan Kallickal for (index = 0; index < num_sg; index++, sg = sg_next(sg), psgl++) { 18356733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 18366733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 18376733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 18386733b39aSJayamohan Kallickal (addr & 0xFFFFFFFF)); 18396733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 18406733b39aSJayamohan Kallickal (addr >> 32)); 18416733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len); 18426733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset); 18436733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 18446733b39aSJayamohan Kallickal offset += sg_len; 18456733b39aSJayamohan Kallickal } 18466733b39aSJayamohan Kallickal psgl--; 18476733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 18486733b39aSJayamohan Kallickal } 18496733b39aSJayamohan Kallickal 18506733b39aSJayamohan Kallickal static void hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task) 18516733b39aSJayamohan Kallickal { 18526733b39aSJayamohan Kallickal struct iscsi_sge *psgl; 18536733b39aSJayamohan Kallickal unsigned long long addr; 18546733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 18556733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = io_task->conn; 18566733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 18576733b39aSJayamohan Kallickal 18586733b39aSJayamohan Kallickal io_task->bhs_len = sizeof(struct be_nonio_bhs) - 2; 18596733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb, 18606733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 18616733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb, 18626733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 18636733b39aSJayamohan Kallickal 18646733b39aSJayamohan Kallickal if (task->data) { 18656733b39aSJayamohan Kallickal if (task->data_count) { 18666733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1); 18676733b39aSJayamohan Kallickal addr = (u64) pci_map_single(phba->pcidev, 18686733b39aSJayamohan Kallickal task->data, 18696733b39aSJayamohan Kallickal task->data_count, 1); 18706733b39aSJayamohan Kallickal } else { 18716733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 18726733b39aSJayamohan Kallickal addr = 0; 18736733b39aSJayamohan Kallickal } 18746733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb, 1875457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 18766733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb, 1877457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 18786733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb, 18796733b39aSJayamohan Kallickal task->data_count); 18806733b39aSJayamohan Kallickal 18816733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1); 18826733b39aSJayamohan Kallickal } else { 18836733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 18846733b39aSJayamohan Kallickal addr = 0; 18856733b39aSJayamohan Kallickal } 18866733b39aSJayamohan Kallickal 18876733b39aSJayamohan Kallickal psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 18886733b39aSJayamohan Kallickal 18896733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len); 18906733b39aSJayamohan Kallickal 18916733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 18926733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 18936733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 18946733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 18956733b39aSJayamohan Kallickal if (task->data) { 18966733b39aSJayamohan Kallickal psgl++; 18976733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 0); 18986733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 0); 18996733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0); 19006733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, 0); 19016733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, rsvd0, psgl, 0); 19026733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 19036733b39aSJayamohan Kallickal 19046733b39aSJayamohan Kallickal psgl++; 19056733b39aSJayamohan Kallickal if (task->data) { 19066733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 1907457ff3b7SJayamohan Kallickal ((u32)(addr & 0xFFFFFFFF))); 19086733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 1909457ff3b7SJayamohan Kallickal ((u32)(addr >> 32))); 19106733b39aSJayamohan Kallickal } 19116733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0x106); 19126733b39aSJayamohan Kallickal } 19136733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 19146733b39aSJayamohan Kallickal } 19156733b39aSJayamohan Kallickal 19166733b39aSJayamohan Kallickal static void beiscsi_find_mem_req(struct beiscsi_hba *phba) 19176733b39aSJayamohan Kallickal { 1918bfead3b2SJayamohan Kallickal unsigned int num_cq_pages, num_async_pdu_buf_pages; 19196733b39aSJayamohan Kallickal unsigned int num_async_pdu_data_pages, wrb_sz_per_cxn; 19206733b39aSJayamohan Kallickal unsigned int num_async_pdu_buf_sgl_pages, num_async_pdu_data_sgl_pages; 19216733b39aSJayamohan Kallickal 19226733b39aSJayamohan Kallickal num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \ 19236733b39aSJayamohan Kallickal sizeof(struct sol_cqe)); 19246733b39aSJayamohan Kallickal num_async_pdu_buf_pages = 19256733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 19266733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz); 19276733b39aSJayamohan Kallickal num_async_pdu_buf_sgl_pages = 19286733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 19296733b39aSJayamohan Kallickal sizeof(struct phys_addr)); 19306733b39aSJayamohan Kallickal num_async_pdu_data_pages = 19316733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 19326733b39aSJayamohan Kallickal phba->params.defpdu_data_sz); 19336733b39aSJayamohan Kallickal num_async_pdu_data_sgl_pages = 19346733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 19356733b39aSJayamohan Kallickal sizeof(struct phys_addr)); 19366733b39aSJayamohan Kallickal 19376733b39aSJayamohan Kallickal phba->params.hwi_ws_sz = sizeof(struct hwi_controller); 19386733b39aSJayamohan Kallickal 19396733b39aSJayamohan Kallickal phba->mem_req[ISCSI_MEM_GLOBAL_HEADER] = 2 * 19406733b39aSJayamohan Kallickal BE_ISCSI_PDU_HEADER_SIZE; 19416733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ADDN_CONTEXT] = 19426733b39aSJayamohan Kallickal sizeof(struct hwi_context_memory); 19436733b39aSJayamohan Kallickal 19446733b39aSJayamohan Kallickal 19456733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_WRB] = sizeof(struct iscsi_wrb) 19466733b39aSJayamohan Kallickal * (phba->params.wrbs_per_cxn) 19476733b39aSJayamohan Kallickal * phba->params.cxns_per_ctrl; 19486733b39aSJayamohan Kallickal wrb_sz_per_cxn = sizeof(struct wrb_handle) * 19496733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn); 19506733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_WRBH] = roundup_pow_of_two((wrb_sz_per_cxn) * 19516733b39aSJayamohan Kallickal phba->params.cxns_per_ctrl); 19526733b39aSJayamohan Kallickal 19536733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_SGLH] = sizeof(struct sgl_handle) * 19546733b39aSJayamohan Kallickal phba->params.icds_per_ctrl; 19556733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_SGE] = sizeof(struct iscsi_sge) * 19566733b39aSJayamohan Kallickal phba->params.num_sge_per_io * phba->params.icds_per_ctrl; 19576733b39aSJayamohan Kallickal 19586733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_HEADER_BUF] = 19596733b39aSJayamohan Kallickal num_async_pdu_buf_pages * PAGE_SIZE; 19606733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_DATA_BUF] = 19616733b39aSJayamohan Kallickal num_async_pdu_data_pages * PAGE_SIZE; 19626733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_HEADER_RING] = 19636733b39aSJayamohan Kallickal num_async_pdu_buf_sgl_pages * PAGE_SIZE; 19646733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_DATA_RING] = 19656733b39aSJayamohan Kallickal num_async_pdu_data_sgl_pages * PAGE_SIZE; 19666733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_HEADER_HANDLE] = 19676733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl * 19686733b39aSJayamohan Kallickal sizeof(struct async_pdu_handle); 19696733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_DATA_HANDLE] = 19706733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl * 19716733b39aSJayamohan Kallickal sizeof(struct async_pdu_handle); 19726733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_PDU_CONTEXT] = 19736733b39aSJayamohan Kallickal sizeof(struct hwi_async_pdu_context) + 19746733b39aSJayamohan Kallickal (phba->params.cxns_per_ctrl * sizeof(struct hwi_async_entry)); 19756733b39aSJayamohan Kallickal } 19766733b39aSJayamohan Kallickal 19776733b39aSJayamohan Kallickal static int beiscsi_alloc_mem(struct beiscsi_hba *phba) 19786733b39aSJayamohan Kallickal { 19796733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 19806733b39aSJayamohan Kallickal dma_addr_t bus_add; 19816733b39aSJayamohan Kallickal struct mem_array *mem_arr, *mem_arr_orig; 19826733b39aSJayamohan Kallickal unsigned int i, j, alloc_size, curr_alloc_size; 19836733b39aSJayamohan Kallickal 19846733b39aSJayamohan Kallickal phba->phwi_ctrlr = kmalloc(phba->params.hwi_ws_sz, GFP_KERNEL); 19856733b39aSJayamohan Kallickal if (!phba->phwi_ctrlr) 19866733b39aSJayamohan Kallickal return -ENOMEM; 19876733b39aSJayamohan Kallickal 19886733b39aSJayamohan Kallickal phba->init_mem = kcalloc(SE_MEM_MAX, sizeof(*mem_descr), 19896733b39aSJayamohan Kallickal GFP_KERNEL); 19906733b39aSJayamohan Kallickal if (!phba->init_mem) { 19916733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 19926733b39aSJayamohan Kallickal return -ENOMEM; 19936733b39aSJayamohan Kallickal } 19946733b39aSJayamohan Kallickal 19956733b39aSJayamohan Kallickal mem_arr_orig = kmalloc(sizeof(*mem_arr_orig) * BEISCSI_MAX_FRAGS_INIT, 19966733b39aSJayamohan Kallickal GFP_KERNEL); 19976733b39aSJayamohan Kallickal if (!mem_arr_orig) { 19986733b39aSJayamohan Kallickal kfree(phba->init_mem); 19996733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 20006733b39aSJayamohan Kallickal return -ENOMEM; 20016733b39aSJayamohan Kallickal } 20026733b39aSJayamohan Kallickal 20036733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 20046733b39aSJayamohan Kallickal for (i = 0; i < SE_MEM_MAX; i++) { 20056733b39aSJayamohan Kallickal j = 0; 20066733b39aSJayamohan Kallickal mem_arr = mem_arr_orig; 20076733b39aSJayamohan Kallickal alloc_size = phba->mem_req[i]; 20086733b39aSJayamohan Kallickal memset(mem_arr, 0, sizeof(struct mem_array) * 20096733b39aSJayamohan Kallickal BEISCSI_MAX_FRAGS_INIT); 20106733b39aSJayamohan Kallickal curr_alloc_size = min(be_max_phys_size * 1024, alloc_size); 20116733b39aSJayamohan Kallickal do { 20126733b39aSJayamohan Kallickal mem_arr->virtual_address = pci_alloc_consistent( 20136733b39aSJayamohan Kallickal phba->pcidev, 20146733b39aSJayamohan Kallickal curr_alloc_size, 20156733b39aSJayamohan Kallickal &bus_add); 20166733b39aSJayamohan Kallickal if (!mem_arr->virtual_address) { 20176733b39aSJayamohan Kallickal if (curr_alloc_size <= BE_MIN_MEM_SIZE) 20186733b39aSJayamohan Kallickal goto free_mem; 20196733b39aSJayamohan Kallickal if (curr_alloc_size - 20206733b39aSJayamohan Kallickal rounddown_pow_of_two(curr_alloc_size)) 20216733b39aSJayamohan Kallickal curr_alloc_size = rounddown_pow_of_two 20226733b39aSJayamohan Kallickal (curr_alloc_size); 20236733b39aSJayamohan Kallickal else 20246733b39aSJayamohan Kallickal curr_alloc_size = curr_alloc_size / 2; 20256733b39aSJayamohan Kallickal } else { 20266733b39aSJayamohan Kallickal mem_arr->bus_address.u. 20276733b39aSJayamohan Kallickal a64.address = (__u64) bus_add; 20286733b39aSJayamohan Kallickal mem_arr->size = curr_alloc_size; 20296733b39aSJayamohan Kallickal alloc_size -= curr_alloc_size; 20306733b39aSJayamohan Kallickal curr_alloc_size = min(be_max_phys_size * 20316733b39aSJayamohan Kallickal 1024, alloc_size); 20326733b39aSJayamohan Kallickal j++; 20336733b39aSJayamohan Kallickal mem_arr++; 20346733b39aSJayamohan Kallickal } 20356733b39aSJayamohan Kallickal } while (alloc_size); 20366733b39aSJayamohan Kallickal mem_descr->num_elements = j; 20376733b39aSJayamohan Kallickal mem_descr->size_in_bytes = phba->mem_req[i]; 20386733b39aSJayamohan Kallickal mem_descr->mem_array = kmalloc(sizeof(*mem_arr) * j, 20396733b39aSJayamohan Kallickal GFP_KERNEL); 20406733b39aSJayamohan Kallickal if (!mem_descr->mem_array) 20416733b39aSJayamohan Kallickal goto free_mem; 20426733b39aSJayamohan Kallickal 20436733b39aSJayamohan Kallickal memcpy(mem_descr->mem_array, mem_arr_orig, 20446733b39aSJayamohan Kallickal sizeof(struct mem_array) * j); 20456733b39aSJayamohan Kallickal mem_descr++; 20466733b39aSJayamohan Kallickal } 20476733b39aSJayamohan Kallickal kfree(mem_arr_orig); 20486733b39aSJayamohan Kallickal return 0; 20496733b39aSJayamohan Kallickal free_mem: 20506733b39aSJayamohan Kallickal mem_descr->num_elements = j; 20516733b39aSJayamohan Kallickal while ((i) || (j)) { 20526733b39aSJayamohan Kallickal for (j = mem_descr->num_elements; j > 0; j--) { 20536733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 20546733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].size, 20556733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1]. 20566733b39aSJayamohan Kallickal virtual_address, 2057457ff3b7SJayamohan Kallickal (unsigned long)mem_descr-> 2058457ff3b7SJayamohan Kallickal mem_array[j - 1]. 20596733b39aSJayamohan Kallickal bus_address.u.a64.address); 20606733b39aSJayamohan Kallickal } 20616733b39aSJayamohan Kallickal if (i) { 20626733b39aSJayamohan Kallickal i--; 20636733b39aSJayamohan Kallickal kfree(mem_descr->mem_array); 20646733b39aSJayamohan Kallickal mem_descr--; 20656733b39aSJayamohan Kallickal } 20666733b39aSJayamohan Kallickal } 20676733b39aSJayamohan Kallickal kfree(mem_arr_orig); 20686733b39aSJayamohan Kallickal kfree(phba->init_mem); 20696733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 20706733b39aSJayamohan Kallickal return -ENOMEM; 20716733b39aSJayamohan Kallickal } 20726733b39aSJayamohan Kallickal 20736733b39aSJayamohan Kallickal static int beiscsi_get_memory(struct beiscsi_hba *phba) 20746733b39aSJayamohan Kallickal { 20756733b39aSJayamohan Kallickal beiscsi_find_mem_req(phba); 20766733b39aSJayamohan Kallickal return beiscsi_alloc_mem(phba); 20776733b39aSJayamohan Kallickal } 20786733b39aSJayamohan Kallickal 20796733b39aSJayamohan Kallickal static void iscsi_init_global_templates(struct beiscsi_hba *phba) 20806733b39aSJayamohan Kallickal { 20816733b39aSJayamohan Kallickal struct pdu_data_out *pdata_out; 20826733b39aSJayamohan Kallickal struct pdu_nop_out *pnop_out; 20836733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 20846733b39aSJayamohan Kallickal 20856733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 20866733b39aSJayamohan Kallickal mem_descr += ISCSI_MEM_GLOBAL_HEADER; 20876733b39aSJayamohan Kallickal pdata_out = 20886733b39aSJayamohan Kallickal (struct pdu_data_out *)mem_descr->mem_array[0].virtual_address; 20896733b39aSJayamohan Kallickal memset(pdata_out, 0, BE_ISCSI_PDU_HEADER_SIZE); 20906733b39aSJayamohan Kallickal 20916733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, opcode, pdata_out, 20926733b39aSJayamohan Kallickal IIOC_SCSI_DATA); 20936733b39aSJayamohan Kallickal 20946733b39aSJayamohan Kallickal pnop_out = 20956733b39aSJayamohan Kallickal (struct pdu_nop_out *)((unsigned char *)mem_descr->mem_array[0]. 20966733b39aSJayamohan Kallickal virtual_address + BE_ISCSI_PDU_HEADER_SIZE); 20976733b39aSJayamohan Kallickal 20986733b39aSJayamohan Kallickal memset(pnop_out, 0, BE_ISCSI_PDU_HEADER_SIZE); 20996733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, ttt, pnop_out, 0xFFFFFFFF); 21006733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, f_bit, pnop_out, 1); 21016733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, i_bit, pnop_out, 0); 21026733b39aSJayamohan Kallickal } 21036733b39aSJayamohan Kallickal 21046733b39aSJayamohan Kallickal static void beiscsi_init_wrb_handle(struct beiscsi_hba *phba) 21056733b39aSJayamohan Kallickal { 21066733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr_wrbh, *mem_descr_wrb; 21076733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 21086733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 21096733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 21106733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb; 21116733b39aSJayamohan Kallickal unsigned int num_cxn_wrbh; 21126733b39aSJayamohan Kallickal unsigned int num_cxn_wrb, j, idx, index; 21136733b39aSJayamohan Kallickal 21146733b39aSJayamohan Kallickal mem_descr_wrbh = phba->init_mem; 21156733b39aSJayamohan Kallickal mem_descr_wrbh += HWI_MEM_WRBH; 21166733b39aSJayamohan Kallickal 21176733b39aSJayamohan Kallickal mem_descr_wrb = phba->init_mem; 21186733b39aSJayamohan Kallickal mem_descr_wrb += HWI_MEM_WRB; 21196733b39aSJayamohan Kallickal 21206733b39aSJayamohan Kallickal idx = 0; 21216733b39aSJayamohan Kallickal pwrb_handle = mem_descr_wrbh->mem_array[idx].virtual_address; 21226733b39aSJayamohan Kallickal num_cxn_wrbh = ((mem_descr_wrbh->mem_array[idx].size) / 21236733b39aSJayamohan Kallickal ((sizeof(struct wrb_handle)) * 21246733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn)); 21256733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 21266733b39aSJayamohan Kallickal 21276733b39aSJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) { 21286733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 21296733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base = 21306733b39aSJayamohan Kallickal kzalloc(sizeof(struct wrb_handle *) * 21316733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn, GFP_KERNEL); 21326733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd = 21336733b39aSJayamohan Kallickal kzalloc(sizeof(struct wrb_handle *) * 21346733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn, GFP_KERNEL); 21356733b39aSJayamohan Kallickal if (num_cxn_wrbh) { 21366733b39aSJayamohan Kallickal pwrb_context->alloc_index = 0; 21376733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available = 0; 21386733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 21396733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base[j] = pwrb_handle; 21406733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd[j] = 21416733b39aSJayamohan Kallickal pwrb_handle; 21426733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available++; 2143bfead3b2SJayamohan Kallickal pwrb_handle->wrb_index = j; 21446733b39aSJayamohan Kallickal pwrb_handle++; 21456733b39aSJayamohan Kallickal } 21466733b39aSJayamohan Kallickal pwrb_context->free_index = 0; 21476733b39aSJayamohan Kallickal num_cxn_wrbh--; 21486733b39aSJayamohan Kallickal } else { 21496733b39aSJayamohan Kallickal idx++; 21506733b39aSJayamohan Kallickal pwrb_handle = 21516733b39aSJayamohan Kallickal mem_descr_wrbh->mem_array[idx].virtual_address; 21526733b39aSJayamohan Kallickal num_cxn_wrbh = 21536733b39aSJayamohan Kallickal ((mem_descr_wrbh->mem_array[idx].size) / 21546733b39aSJayamohan Kallickal ((sizeof(struct wrb_handle)) * 21556733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn)); 21566733b39aSJayamohan Kallickal pwrb_context->alloc_index = 0; 21576733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 21586733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base[j] = pwrb_handle; 21596733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd[j] = 21606733b39aSJayamohan Kallickal pwrb_handle; 21616733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available++; 2162bfead3b2SJayamohan Kallickal pwrb_handle->wrb_index = j; 21636733b39aSJayamohan Kallickal pwrb_handle++; 21646733b39aSJayamohan Kallickal } 21656733b39aSJayamohan Kallickal pwrb_context->free_index = 0; 21666733b39aSJayamohan Kallickal num_cxn_wrbh--; 21676733b39aSJayamohan Kallickal } 21686733b39aSJayamohan Kallickal } 21696733b39aSJayamohan Kallickal idx = 0; 21706733b39aSJayamohan Kallickal pwrb = mem_descr_wrb->mem_array[idx].virtual_address; 21717c56533cSJayamohan Kallickal num_cxn_wrb = (mem_descr_wrb->mem_array[idx].size) / 21727c56533cSJayamohan Kallickal ((sizeof(struct iscsi_wrb) * 21737c56533cSJayamohan Kallickal phba->params.wrbs_per_cxn)); 2174ed58ea2aSJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) { 21756733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 21766733b39aSJayamohan Kallickal if (num_cxn_wrb) { 21776733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 21786733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[j]; 21796733b39aSJayamohan Kallickal pwrb_handle->pwrb = pwrb; 21806733b39aSJayamohan Kallickal pwrb++; 21816733b39aSJayamohan Kallickal } 21826733b39aSJayamohan Kallickal num_cxn_wrb--; 21836733b39aSJayamohan Kallickal } else { 21846733b39aSJayamohan Kallickal idx++; 21856733b39aSJayamohan Kallickal pwrb = mem_descr_wrb->mem_array[idx].virtual_address; 21867c56533cSJayamohan Kallickal num_cxn_wrb = (mem_descr_wrb->mem_array[idx].size) / 21877c56533cSJayamohan Kallickal ((sizeof(struct iscsi_wrb) * 21887c56533cSJayamohan Kallickal phba->params.wrbs_per_cxn)); 21896733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 21906733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[j]; 21916733b39aSJayamohan Kallickal pwrb_handle->pwrb = pwrb; 21926733b39aSJayamohan Kallickal pwrb++; 21936733b39aSJayamohan Kallickal } 21946733b39aSJayamohan Kallickal num_cxn_wrb--; 21956733b39aSJayamohan Kallickal } 21966733b39aSJayamohan Kallickal } 21976733b39aSJayamohan Kallickal } 21986733b39aSJayamohan Kallickal 21996733b39aSJayamohan Kallickal static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba) 22006733b39aSJayamohan Kallickal { 22016733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 22026733b39aSJayamohan Kallickal struct hba_parameters *p = &phba->params; 22036733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 22046733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_header_h, *pasync_data_h; 22056733b39aSJayamohan Kallickal unsigned int index; 22066733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 22076733b39aSJayamohan Kallickal 22086733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 22096733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_PDU_CONTEXT; 22106733b39aSJayamohan Kallickal 22116733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 22126733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt->pasync_ctx = (struct hwi_async_pdu_context *) 22136733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 22146733b39aSJayamohan Kallickal pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx; 22156733b39aSJayamohan Kallickal memset(pasync_ctx, 0, sizeof(*pasync_ctx)); 22166733b39aSJayamohan Kallickal 22176733b39aSJayamohan Kallickal pasync_ctx->async_header.num_entries = p->asyncpdus_per_ctrl; 22186733b39aSJayamohan Kallickal pasync_ctx->async_header.buffer_size = p->defpdu_hdr_sz; 22196733b39aSJayamohan Kallickal pasync_ctx->async_data.buffer_size = p->defpdu_data_sz; 22206733b39aSJayamohan Kallickal pasync_ctx->async_data.num_entries = p->asyncpdus_per_ctrl; 22216733b39aSJayamohan Kallickal 22226733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 22236733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_BUF; 22246733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 22256733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 22266733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_BUF" 22276733b39aSJayamohan Kallickal "va=%p\n", mem_descr->mem_array[0].virtual_address); 22286733b39aSJayamohan Kallickal } else 22296733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 22306733b39aSJayamohan Kallickal "No Virtual address\n"); 22316733b39aSJayamohan Kallickal 22326733b39aSJayamohan Kallickal pasync_ctx->async_header.va_base = 22336733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 22346733b39aSJayamohan Kallickal 22356733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address = 22366733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a64.address; 22376733b39aSJayamohan Kallickal 22386733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 22396733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_RING; 22406733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 22416733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 22426733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_RING" 22436733b39aSJayamohan Kallickal "va=%p\n", mem_descr->mem_array[0].virtual_address); 22446733b39aSJayamohan Kallickal } else 22456733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 22466733b39aSJayamohan Kallickal "No Virtual address\n"); 22476733b39aSJayamohan Kallickal pasync_ctx->async_header.ring_base = 22486733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 22496733b39aSJayamohan Kallickal 22506733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 22516733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE; 22526733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 22536733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 22546733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_HANDLE" 22556733b39aSJayamohan Kallickal "va=%p\n", mem_descr->mem_array[0].virtual_address); 22566733b39aSJayamohan Kallickal } else 22576733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 22586733b39aSJayamohan Kallickal "No Virtual address\n"); 22596733b39aSJayamohan Kallickal 22606733b39aSJayamohan Kallickal pasync_ctx->async_header.handle_base = 22616733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 22626733b39aSJayamohan Kallickal pasync_ctx->async_header.writables = 0; 22636733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_header.free_list); 22646733b39aSJayamohan Kallickal 22656733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 22666733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_BUF; 22676733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 22686733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 22696733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_BUF" 22706733b39aSJayamohan Kallickal "va=%p\n", mem_descr->mem_array[0].virtual_address); 22716733b39aSJayamohan Kallickal } else 22726733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 22736733b39aSJayamohan Kallickal "No Virtual address\n"); 22746733b39aSJayamohan Kallickal pasync_ctx->async_data.va_base = 22756733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 22766733b39aSJayamohan Kallickal pasync_ctx->async_data.pa_base.u.a64.address = 22776733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a64.address; 22786733b39aSJayamohan Kallickal 22796733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 22806733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_RING; 22816733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 22826733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 22836733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_RING" 22846733b39aSJayamohan Kallickal "va=%p\n", mem_descr->mem_array[0].virtual_address); 22856733b39aSJayamohan Kallickal } else 22866733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 22876733b39aSJayamohan Kallickal "No Virtual address\n"); 22886733b39aSJayamohan Kallickal 22896733b39aSJayamohan Kallickal pasync_ctx->async_data.ring_base = 22906733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 22916733b39aSJayamohan Kallickal 22926733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 22936733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_HANDLE; 22946733b39aSJayamohan Kallickal if (!mem_descr->mem_array[0].virtual_address) 22956733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 22966733b39aSJayamohan Kallickal "No Virtual address\n"); 22976733b39aSJayamohan Kallickal 22986733b39aSJayamohan Kallickal pasync_ctx->async_data.handle_base = 22996733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 23006733b39aSJayamohan Kallickal pasync_ctx->async_data.writables = 0; 23016733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_data.free_list); 23026733b39aSJayamohan Kallickal 23036733b39aSJayamohan Kallickal pasync_header_h = 23046733b39aSJayamohan Kallickal (struct async_pdu_handle *)pasync_ctx->async_header.handle_base; 23056733b39aSJayamohan Kallickal pasync_data_h = 23066733b39aSJayamohan Kallickal (struct async_pdu_handle *)pasync_ctx->async_data.handle_base; 23076733b39aSJayamohan Kallickal 23086733b39aSJayamohan Kallickal for (index = 0; index < p->asyncpdus_per_ctrl; index++) { 23096733b39aSJayamohan Kallickal pasync_header_h->cri = -1; 23106733b39aSJayamohan Kallickal pasync_header_h->index = (char)index; 23116733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_header_h->link); 23126733b39aSJayamohan Kallickal pasync_header_h->pbuffer = 23136733b39aSJayamohan Kallickal (void *)((unsigned long) 23146733b39aSJayamohan Kallickal (pasync_ctx->async_header.va_base) + 23156733b39aSJayamohan Kallickal (p->defpdu_hdr_sz * index)); 23166733b39aSJayamohan Kallickal 23176733b39aSJayamohan Kallickal pasync_header_h->pa.u.a64.address = 23186733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address + 23196733b39aSJayamohan Kallickal (p->defpdu_hdr_sz * index); 23206733b39aSJayamohan Kallickal 23216733b39aSJayamohan Kallickal list_add_tail(&pasync_header_h->link, 23226733b39aSJayamohan Kallickal &pasync_ctx->async_header.free_list); 23236733b39aSJayamohan Kallickal pasync_header_h++; 23246733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries++; 23256733b39aSJayamohan Kallickal pasync_ctx->async_header.writables++; 23266733b39aSJayamohan Kallickal 23276733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index].wait_queue.list); 23286733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index]. 23296733b39aSJayamohan Kallickal header_busy_list); 23306733b39aSJayamohan Kallickal pasync_data_h->cri = -1; 23316733b39aSJayamohan Kallickal pasync_data_h->index = (char)index; 23326733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_data_h->link); 23336733b39aSJayamohan Kallickal pasync_data_h->pbuffer = 23346733b39aSJayamohan Kallickal (void *)((unsigned long) 23356733b39aSJayamohan Kallickal (pasync_ctx->async_data.va_base) + 23366733b39aSJayamohan Kallickal (p->defpdu_data_sz * index)); 23376733b39aSJayamohan Kallickal 23386733b39aSJayamohan Kallickal pasync_data_h->pa.u.a64.address = 23396733b39aSJayamohan Kallickal pasync_ctx->async_data.pa_base.u.a64.address + 23406733b39aSJayamohan Kallickal (p->defpdu_data_sz * index); 23416733b39aSJayamohan Kallickal 23426733b39aSJayamohan Kallickal list_add_tail(&pasync_data_h->link, 23436733b39aSJayamohan Kallickal &pasync_ctx->async_data.free_list); 23446733b39aSJayamohan Kallickal pasync_data_h++; 23456733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries++; 23466733b39aSJayamohan Kallickal pasync_ctx->async_data.writables++; 23476733b39aSJayamohan Kallickal 23486733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index].data_busy_list); 23496733b39aSJayamohan Kallickal } 23506733b39aSJayamohan Kallickal 23516733b39aSJayamohan Kallickal pasync_ctx->async_header.host_write_ptr = 0; 23526733b39aSJayamohan Kallickal pasync_ctx->async_header.ep_read_ptr = -1; 23536733b39aSJayamohan Kallickal pasync_ctx->async_data.host_write_ptr = 0; 23546733b39aSJayamohan Kallickal pasync_ctx->async_data.ep_read_ptr = -1; 23556733b39aSJayamohan Kallickal } 23566733b39aSJayamohan Kallickal 23576733b39aSJayamohan Kallickal static int 23586733b39aSJayamohan Kallickal be_sgl_create_contiguous(void *virtual_address, 23596733b39aSJayamohan Kallickal u64 physical_address, u32 length, 23606733b39aSJayamohan Kallickal struct be_dma_mem *sgl) 23616733b39aSJayamohan Kallickal { 23626733b39aSJayamohan Kallickal WARN_ON(!virtual_address); 23636733b39aSJayamohan Kallickal WARN_ON(!physical_address); 23646733b39aSJayamohan Kallickal WARN_ON(!length > 0); 23656733b39aSJayamohan Kallickal WARN_ON(!sgl); 23666733b39aSJayamohan Kallickal 23676733b39aSJayamohan Kallickal sgl->va = virtual_address; 2368457ff3b7SJayamohan Kallickal sgl->dma = (unsigned long)physical_address; 23696733b39aSJayamohan Kallickal sgl->size = length; 23706733b39aSJayamohan Kallickal 23716733b39aSJayamohan Kallickal return 0; 23726733b39aSJayamohan Kallickal } 23736733b39aSJayamohan Kallickal 23746733b39aSJayamohan Kallickal static void be_sgl_destroy_contiguous(struct be_dma_mem *sgl) 23756733b39aSJayamohan Kallickal { 23766733b39aSJayamohan Kallickal memset(sgl, 0, sizeof(*sgl)); 23776733b39aSJayamohan Kallickal } 23786733b39aSJayamohan Kallickal 23796733b39aSJayamohan Kallickal static void 23806733b39aSJayamohan Kallickal hwi_build_be_sgl_arr(struct beiscsi_hba *phba, 23816733b39aSJayamohan Kallickal struct mem_array *pmem, struct be_dma_mem *sgl) 23826733b39aSJayamohan Kallickal { 23836733b39aSJayamohan Kallickal if (sgl->va) 23846733b39aSJayamohan Kallickal be_sgl_destroy_contiguous(sgl); 23856733b39aSJayamohan Kallickal 23866733b39aSJayamohan Kallickal be_sgl_create_contiguous(pmem->virtual_address, 23876733b39aSJayamohan Kallickal pmem->bus_address.u.a64.address, 23886733b39aSJayamohan Kallickal pmem->size, sgl); 23896733b39aSJayamohan Kallickal } 23906733b39aSJayamohan Kallickal 23916733b39aSJayamohan Kallickal static void 23926733b39aSJayamohan Kallickal hwi_build_be_sgl_by_offset(struct beiscsi_hba *phba, 23936733b39aSJayamohan Kallickal struct mem_array *pmem, struct be_dma_mem *sgl) 23946733b39aSJayamohan Kallickal { 23956733b39aSJayamohan Kallickal if (sgl->va) 23966733b39aSJayamohan Kallickal be_sgl_destroy_contiguous(sgl); 23976733b39aSJayamohan Kallickal 23986733b39aSJayamohan Kallickal be_sgl_create_contiguous((unsigned char *)pmem->virtual_address, 23996733b39aSJayamohan Kallickal pmem->bus_address.u.a64.address, 24006733b39aSJayamohan Kallickal pmem->size, sgl); 24016733b39aSJayamohan Kallickal } 24026733b39aSJayamohan Kallickal 24036733b39aSJayamohan Kallickal static int be_fill_queue(struct be_queue_info *q, 24046733b39aSJayamohan Kallickal u16 len, u16 entry_size, void *vaddress) 24056733b39aSJayamohan Kallickal { 24066733b39aSJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 24076733b39aSJayamohan Kallickal 24086733b39aSJayamohan Kallickal memset(q, 0, sizeof(*q)); 24096733b39aSJayamohan Kallickal q->len = len; 24106733b39aSJayamohan Kallickal q->entry_size = entry_size; 24116733b39aSJayamohan Kallickal mem->size = len * entry_size; 24126733b39aSJayamohan Kallickal mem->va = vaddress; 24136733b39aSJayamohan Kallickal if (!mem->va) 24146733b39aSJayamohan Kallickal return -ENOMEM; 24156733b39aSJayamohan Kallickal memset(mem->va, 0, mem->size); 24166733b39aSJayamohan Kallickal return 0; 24176733b39aSJayamohan Kallickal } 24186733b39aSJayamohan Kallickal 2419bfead3b2SJayamohan Kallickal static int beiscsi_create_eqs(struct beiscsi_hba *phba, 24206733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context) 24216733b39aSJayamohan Kallickal { 2422bfead3b2SJayamohan Kallickal unsigned int i, num_eq_pages; 2423bfead3b2SJayamohan Kallickal int ret, eq_for_mcc; 24246733b39aSJayamohan Kallickal struct be_queue_info *eq; 24256733b39aSJayamohan Kallickal struct be_dma_mem *mem; 24266733b39aSJayamohan Kallickal void *eq_vaddress; 2427bfead3b2SJayamohan Kallickal dma_addr_t paddr; 24286733b39aSJayamohan Kallickal 2429bfead3b2SJayamohan Kallickal num_eq_pages = PAGES_REQUIRED(phba->params.num_eq_entries * \ 2430bfead3b2SJayamohan Kallickal sizeof(struct be_eq_entry)); 2431bfead3b2SJayamohan Kallickal 2432bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 2433bfead3b2SJayamohan Kallickal eq_for_mcc = 1; 2434bfead3b2SJayamohan Kallickal else 2435bfead3b2SJayamohan Kallickal eq_for_mcc = 0; 2436bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) { 2437bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 24386733b39aSJayamohan Kallickal mem = &eq->dma_mem; 2439bfead3b2SJayamohan Kallickal phwi_context->be_eq[i].phba = phba; 2440bfead3b2SJayamohan Kallickal eq_vaddress = pci_alloc_consistent(phba->pcidev, 2441bfead3b2SJayamohan Kallickal num_eq_pages * PAGE_SIZE, 2442bfead3b2SJayamohan Kallickal &paddr); 2443bfead3b2SJayamohan Kallickal if (!eq_vaddress) 2444bfead3b2SJayamohan Kallickal goto create_eq_error; 24456733b39aSJayamohan Kallickal 2446bfead3b2SJayamohan Kallickal mem->va = eq_vaddress; 24476733b39aSJayamohan Kallickal ret = be_fill_queue(eq, phba->params.num_eq_entries, 24486733b39aSJayamohan Kallickal sizeof(struct be_eq_entry), eq_vaddress); 24496733b39aSJayamohan Kallickal if (ret) { 24506733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 24516733b39aSJayamohan Kallickal "be_fill_queue Failed for EQ\n"); 2452bfead3b2SJayamohan Kallickal goto create_eq_error; 24536733b39aSJayamohan Kallickal } 24546733b39aSJayamohan Kallickal 2455bfead3b2SJayamohan Kallickal mem->dma = paddr; 24566733b39aSJayamohan Kallickal ret = beiscsi_cmd_eq_create(&phba->ctrl, eq, 2457bfead3b2SJayamohan Kallickal phwi_context->cur_eqd); 24586733b39aSJayamohan Kallickal if (ret) { 2459bfead3b2SJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 2460bfead3b2SJayamohan Kallickal "beiscsi_cmd_eq_create" 24616733b39aSJayamohan Kallickal "Failedfor EQ\n"); 2462bfead3b2SJayamohan Kallickal goto create_eq_error; 2463bfead3b2SJayamohan Kallickal } 2464bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "eqid = %d\n", phwi_context->be_eq[i].q.id); 2465bfead3b2SJayamohan Kallickal } 2466bfead3b2SJayamohan Kallickal return 0; 2467bfead3b2SJayamohan Kallickal create_eq_error: 2468bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + 1); i++) { 2469bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 2470bfead3b2SJayamohan Kallickal mem = &eq->dma_mem; 2471bfead3b2SJayamohan Kallickal if (mem->va) 2472bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, num_eq_pages 2473bfead3b2SJayamohan Kallickal * PAGE_SIZE, 2474bfead3b2SJayamohan Kallickal mem->va, mem->dma); 2475bfead3b2SJayamohan Kallickal } 24766733b39aSJayamohan Kallickal return ret; 24776733b39aSJayamohan Kallickal } 24786733b39aSJayamohan Kallickal 2479bfead3b2SJayamohan Kallickal static int beiscsi_create_cqs(struct beiscsi_hba *phba, 24806733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context) 24816733b39aSJayamohan Kallickal { 2482bfead3b2SJayamohan Kallickal unsigned int i, num_cq_pages; 24836733b39aSJayamohan Kallickal int ret; 24846733b39aSJayamohan Kallickal struct be_queue_info *cq, *eq; 24856733b39aSJayamohan Kallickal struct be_dma_mem *mem; 2486bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 24876733b39aSJayamohan Kallickal void *cq_vaddress; 2488bfead3b2SJayamohan Kallickal dma_addr_t paddr; 24896733b39aSJayamohan Kallickal 2490bfead3b2SJayamohan Kallickal num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \ 2491bfead3b2SJayamohan Kallickal sizeof(struct sol_cqe)); 2492bfead3b2SJayamohan Kallickal 2493bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 2494bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[i]; 2495bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 2496bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 2497bfead3b2SJayamohan Kallickal pbe_eq->cq = cq; 2498bfead3b2SJayamohan Kallickal pbe_eq->phba = phba; 24996733b39aSJayamohan Kallickal mem = &cq->dma_mem; 2500bfead3b2SJayamohan Kallickal cq_vaddress = pci_alloc_consistent(phba->pcidev, 2501bfead3b2SJayamohan Kallickal num_cq_pages * PAGE_SIZE, 2502bfead3b2SJayamohan Kallickal &paddr); 2503bfead3b2SJayamohan Kallickal if (!cq_vaddress) 2504bfead3b2SJayamohan Kallickal goto create_cq_error; 25057da50879SJayamohan Kallickal ret = be_fill_queue(cq, phba->params.num_cq_entries, 25066733b39aSJayamohan Kallickal sizeof(struct sol_cqe), cq_vaddress); 25076733b39aSJayamohan Kallickal if (ret) { 25086733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 25096733b39aSJayamohan Kallickal "be_fill_queue Failed for ISCSI CQ\n"); 2510bfead3b2SJayamohan Kallickal goto create_cq_error; 25116733b39aSJayamohan Kallickal } 25126733b39aSJayamohan Kallickal 2513bfead3b2SJayamohan Kallickal mem->dma = paddr; 2514bfead3b2SJayamohan Kallickal ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false, 2515bfead3b2SJayamohan Kallickal false, 0); 25166733b39aSJayamohan Kallickal if (ret) { 25176733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 2518bfead3b2SJayamohan Kallickal "beiscsi_cmd_eq_create" 2519bfead3b2SJayamohan Kallickal "Failed for ISCSI CQ\n"); 2520bfead3b2SJayamohan Kallickal goto create_cq_error; 25216733b39aSJayamohan Kallickal } 2522bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "iscsi cq_id is %d for eq_id %d\n", 2523bfead3b2SJayamohan Kallickal cq->id, eq->id); 25246733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "ISCSI CQ CREATED\n"); 2525bfead3b2SJayamohan Kallickal } 25266733b39aSJayamohan Kallickal return 0; 2527bfead3b2SJayamohan Kallickal 2528bfead3b2SJayamohan Kallickal create_cq_error: 2529bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 2530bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[i]; 2531bfead3b2SJayamohan Kallickal mem = &cq->dma_mem; 2532bfead3b2SJayamohan Kallickal if (mem->va) 2533bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, num_cq_pages 2534bfead3b2SJayamohan Kallickal * PAGE_SIZE, 2535bfead3b2SJayamohan Kallickal mem->va, mem->dma); 2536bfead3b2SJayamohan Kallickal } 2537bfead3b2SJayamohan Kallickal return ret; 2538bfead3b2SJayamohan Kallickal 25396733b39aSJayamohan Kallickal } 25406733b39aSJayamohan Kallickal 25416733b39aSJayamohan Kallickal static int 25426733b39aSJayamohan Kallickal beiscsi_create_def_hdr(struct beiscsi_hba *phba, 25436733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 25446733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr, 25456733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz) 25466733b39aSJayamohan Kallickal { 25476733b39aSJayamohan Kallickal unsigned int idx; 25486733b39aSJayamohan Kallickal int ret; 25496733b39aSJayamohan Kallickal struct be_queue_info *dq, *cq; 25506733b39aSJayamohan Kallickal struct be_dma_mem *mem; 25516733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 25526733b39aSJayamohan Kallickal void *dq_vaddress; 25536733b39aSJayamohan Kallickal 25546733b39aSJayamohan Kallickal idx = 0; 25556733b39aSJayamohan Kallickal dq = &phwi_context->be_def_hdrq; 2556bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 25576733b39aSJayamohan Kallickal mem = &dq->dma_mem; 25586733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 25596733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_RING; 25606733b39aSJayamohan Kallickal dq_vaddress = mem_descr->mem_array[idx].virtual_address; 25616733b39aSJayamohan Kallickal ret = be_fill_queue(dq, mem_descr->mem_array[0].size / 25626733b39aSJayamohan Kallickal sizeof(struct phys_addr), 25636733b39aSJayamohan Kallickal sizeof(struct phys_addr), dq_vaddress); 25646733b39aSJayamohan Kallickal if (ret) { 25656733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 25666733b39aSJayamohan Kallickal "be_fill_queue Failed for DEF PDU HDR\n"); 25676733b39aSJayamohan Kallickal return ret; 25686733b39aSJayamohan Kallickal } 2569457ff3b7SJayamohan Kallickal mem->dma = (unsigned long)mem_descr->mem_array[idx]. 2570457ff3b7SJayamohan Kallickal bus_address.u.a64.address; 25716733b39aSJayamohan Kallickal ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dq, 25726733b39aSJayamohan Kallickal def_pdu_ring_sz, 25736733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz); 25746733b39aSJayamohan Kallickal if (ret) { 25756733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 25766733b39aSJayamohan Kallickal "be_cmd_create_default_pdu_queue Failed DEFHDR\n"); 25776733b39aSJayamohan Kallickal return ret; 25786733b39aSJayamohan Kallickal } 25796733b39aSJayamohan Kallickal phwi_ctrlr->default_pdu_hdr.id = phwi_context->be_def_hdrq.id; 25806733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "iscsi def pdu id is %d\n", 25816733b39aSJayamohan Kallickal phwi_context->be_def_hdrq.id); 25826733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, 1); 25836733b39aSJayamohan Kallickal return 0; 25846733b39aSJayamohan Kallickal } 25856733b39aSJayamohan Kallickal 25866733b39aSJayamohan Kallickal static int 25876733b39aSJayamohan Kallickal beiscsi_create_def_data(struct beiscsi_hba *phba, 25886733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 25896733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr, 25906733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz) 25916733b39aSJayamohan Kallickal { 25926733b39aSJayamohan Kallickal unsigned int idx; 25936733b39aSJayamohan Kallickal int ret; 25946733b39aSJayamohan Kallickal struct be_queue_info *dataq, *cq; 25956733b39aSJayamohan Kallickal struct be_dma_mem *mem; 25966733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 25976733b39aSJayamohan Kallickal void *dq_vaddress; 25986733b39aSJayamohan Kallickal 25996733b39aSJayamohan Kallickal idx = 0; 26006733b39aSJayamohan Kallickal dataq = &phwi_context->be_def_dataq; 2601bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 26026733b39aSJayamohan Kallickal mem = &dataq->dma_mem; 26036733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 26046733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_RING; 26056733b39aSJayamohan Kallickal dq_vaddress = mem_descr->mem_array[idx].virtual_address; 26066733b39aSJayamohan Kallickal ret = be_fill_queue(dataq, mem_descr->mem_array[0].size / 26076733b39aSJayamohan Kallickal sizeof(struct phys_addr), 26086733b39aSJayamohan Kallickal sizeof(struct phys_addr), dq_vaddress); 26096733b39aSJayamohan Kallickal if (ret) { 26106733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 26116733b39aSJayamohan Kallickal "be_fill_queue Failed for DEF PDU DATA\n"); 26126733b39aSJayamohan Kallickal return ret; 26136733b39aSJayamohan Kallickal } 2614457ff3b7SJayamohan Kallickal mem->dma = (unsigned long)mem_descr->mem_array[idx]. 2615457ff3b7SJayamohan Kallickal bus_address.u.a64.address; 26166733b39aSJayamohan Kallickal ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dataq, 26176733b39aSJayamohan Kallickal def_pdu_ring_sz, 26186733b39aSJayamohan Kallickal phba->params.defpdu_data_sz); 26196733b39aSJayamohan Kallickal if (ret) { 26206733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 26216733b39aSJayamohan Kallickal "be_cmd_create_default_pdu_queue Failed" 26226733b39aSJayamohan Kallickal " for DEF PDU DATA\n"); 26236733b39aSJayamohan Kallickal return ret; 26246733b39aSJayamohan Kallickal } 26256733b39aSJayamohan Kallickal phwi_ctrlr->default_pdu_data.id = phwi_context->be_def_dataq.id; 26266733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "iscsi def data id is %d\n", 26276733b39aSJayamohan Kallickal phwi_context->be_def_dataq.id); 26286733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, 0); 26296733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "DEFAULT PDU DATA RING CREATED\n"); 26306733b39aSJayamohan Kallickal return 0; 26316733b39aSJayamohan Kallickal } 26326733b39aSJayamohan Kallickal 26336733b39aSJayamohan Kallickal static int 26346733b39aSJayamohan Kallickal beiscsi_post_pages(struct beiscsi_hba *phba) 26356733b39aSJayamohan Kallickal { 26366733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 26376733b39aSJayamohan Kallickal struct mem_array *pm_arr; 26386733b39aSJayamohan Kallickal unsigned int page_offset, i; 26396733b39aSJayamohan Kallickal struct be_dma_mem sgl; 26406733b39aSJayamohan Kallickal int status; 26416733b39aSJayamohan Kallickal 26426733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 26436733b39aSJayamohan Kallickal mem_descr += HWI_MEM_SGE; 26446733b39aSJayamohan Kallickal pm_arr = mem_descr->mem_array; 26456733b39aSJayamohan Kallickal 26466733b39aSJayamohan Kallickal page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io * 26476733b39aSJayamohan Kallickal phba->fw_config.iscsi_icd_start) / PAGE_SIZE; 26486733b39aSJayamohan Kallickal for (i = 0; i < mem_descr->num_elements; i++) { 26496733b39aSJayamohan Kallickal hwi_build_be_sgl_arr(phba, pm_arr, &sgl); 26506733b39aSJayamohan Kallickal status = be_cmd_iscsi_post_sgl_pages(&phba->ctrl, &sgl, 26516733b39aSJayamohan Kallickal page_offset, 26526733b39aSJayamohan Kallickal (pm_arr->size / PAGE_SIZE)); 26536733b39aSJayamohan Kallickal page_offset += pm_arr->size / PAGE_SIZE; 26546733b39aSJayamohan Kallickal if (status != 0) { 26556733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 26566733b39aSJayamohan Kallickal "post sgl failed.\n"); 26576733b39aSJayamohan Kallickal return status; 26586733b39aSJayamohan Kallickal } 26596733b39aSJayamohan Kallickal pm_arr++; 26606733b39aSJayamohan Kallickal } 26616733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "POSTED PAGES\n"); 26626733b39aSJayamohan Kallickal return 0; 26636733b39aSJayamohan Kallickal } 26646733b39aSJayamohan Kallickal 2665bfead3b2SJayamohan Kallickal static void be_queue_free(struct beiscsi_hba *phba, struct be_queue_info *q) 2666bfead3b2SJayamohan Kallickal { 2667bfead3b2SJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 2668bfead3b2SJayamohan Kallickal if (mem->va) 2669bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, mem->size, 2670bfead3b2SJayamohan Kallickal mem->va, mem->dma); 2671bfead3b2SJayamohan Kallickal } 2672bfead3b2SJayamohan Kallickal 2673bfead3b2SJayamohan Kallickal static int be_queue_alloc(struct beiscsi_hba *phba, struct be_queue_info *q, 2674bfead3b2SJayamohan Kallickal u16 len, u16 entry_size) 2675bfead3b2SJayamohan Kallickal { 2676bfead3b2SJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 2677bfead3b2SJayamohan Kallickal 2678bfead3b2SJayamohan Kallickal memset(q, 0, sizeof(*q)); 2679bfead3b2SJayamohan Kallickal q->len = len; 2680bfead3b2SJayamohan Kallickal q->entry_size = entry_size; 2681bfead3b2SJayamohan Kallickal mem->size = len * entry_size; 2682bfead3b2SJayamohan Kallickal mem->va = pci_alloc_consistent(phba->pcidev, mem->size, &mem->dma); 2683bfead3b2SJayamohan Kallickal if (!mem->va) 2684d3ad2bb3SJayamohan Kallickal return -ENOMEM; 2685bfead3b2SJayamohan Kallickal memset(mem->va, 0, mem->size); 2686bfead3b2SJayamohan Kallickal return 0; 2687bfead3b2SJayamohan Kallickal } 2688bfead3b2SJayamohan Kallickal 26896733b39aSJayamohan Kallickal static int 26906733b39aSJayamohan Kallickal beiscsi_create_wrb_rings(struct beiscsi_hba *phba, 26916733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 26926733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr) 26936733b39aSJayamohan Kallickal { 26946733b39aSJayamohan Kallickal unsigned int wrb_mem_index, offset, size, num_wrb_rings; 26956733b39aSJayamohan Kallickal u64 pa_addr_lo; 26966733b39aSJayamohan Kallickal unsigned int idx, num, i; 26976733b39aSJayamohan Kallickal struct mem_array *pwrb_arr; 26986733b39aSJayamohan Kallickal void *wrb_vaddr; 26996733b39aSJayamohan Kallickal struct be_dma_mem sgl; 27006733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 27016733b39aSJayamohan Kallickal int status; 27026733b39aSJayamohan Kallickal 27036733b39aSJayamohan Kallickal idx = 0; 27046733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 27056733b39aSJayamohan Kallickal mem_descr += HWI_MEM_WRB; 27066733b39aSJayamohan Kallickal pwrb_arr = kmalloc(sizeof(*pwrb_arr) * phba->params.cxns_per_ctrl, 27076733b39aSJayamohan Kallickal GFP_KERNEL); 27086733b39aSJayamohan Kallickal if (!pwrb_arr) { 27096733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 27106733b39aSJayamohan Kallickal "Memory alloc failed in create wrb ring.\n"); 27116733b39aSJayamohan Kallickal return -ENOMEM; 27126733b39aSJayamohan Kallickal } 27136733b39aSJayamohan Kallickal wrb_vaddr = mem_descr->mem_array[idx].virtual_address; 27146733b39aSJayamohan Kallickal pa_addr_lo = mem_descr->mem_array[idx].bus_address.u.a64.address; 27156733b39aSJayamohan Kallickal num_wrb_rings = mem_descr->mem_array[idx].size / 27166733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn * sizeof(struct iscsi_wrb)); 27176733b39aSJayamohan Kallickal 27186733b39aSJayamohan Kallickal for (num = 0; num < phba->params.cxns_per_ctrl; num++) { 27196733b39aSJayamohan Kallickal if (num_wrb_rings) { 27206733b39aSJayamohan Kallickal pwrb_arr[num].virtual_address = wrb_vaddr; 27216733b39aSJayamohan Kallickal pwrb_arr[num].bus_address.u.a64.address = pa_addr_lo; 27226733b39aSJayamohan Kallickal pwrb_arr[num].size = phba->params.wrbs_per_cxn * 27236733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb); 27246733b39aSJayamohan Kallickal wrb_vaddr += pwrb_arr[num].size; 27256733b39aSJayamohan Kallickal pa_addr_lo += pwrb_arr[num].size; 27266733b39aSJayamohan Kallickal num_wrb_rings--; 27276733b39aSJayamohan Kallickal } else { 27286733b39aSJayamohan Kallickal idx++; 27296733b39aSJayamohan Kallickal wrb_vaddr = mem_descr->mem_array[idx].virtual_address; 27306733b39aSJayamohan Kallickal pa_addr_lo = mem_descr->mem_array[idx].\ 27316733b39aSJayamohan Kallickal bus_address.u.a64.address; 27326733b39aSJayamohan Kallickal num_wrb_rings = mem_descr->mem_array[idx].size / 27336733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn * 27346733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb)); 27356733b39aSJayamohan Kallickal pwrb_arr[num].virtual_address = wrb_vaddr; 27366733b39aSJayamohan Kallickal pwrb_arr[num].bus_address.u.a64.address\ 27376733b39aSJayamohan Kallickal = pa_addr_lo; 27386733b39aSJayamohan Kallickal pwrb_arr[num].size = phba->params.wrbs_per_cxn * 27396733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb); 27406733b39aSJayamohan Kallickal wrb_vaddr += pwrb_arr[num].size; 27416733b39aSJayamohan Kallickal pa_addr_lo += pwrb_arr[num].size; 27426733b39aSJayamohan Kallickal num_wrb_rings--; 27436733b39aSJayamohan Kallickal } 27446733b39aSJayamohan Kallickal } 27456733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 27466733b39aSJayamohan Kallickal wrb_mem_index = 0; 27476733b39aSJayamohan Kallickal offset = 0; 27486733b39aSJayamohan Kallickal size = 0; 27496733b39aSJayamohan Kallickal 27506733b39aSJayamohan Kallickal hwi_build_be_sgl_by_offset(phba, &pwrb_arr[i], &sgl); 27516733b39aSJayamohan Kallickal status = be_cmd_wrbq_create(&phba->ctrl, &sgl, 27526733b39aSJayamohan Kallickal &phwi_context->be_wrbq[i]); 27536733b39aSJayamohan Kallickal if (status != 0) { 27546733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 27556733b39aSJayamohan Kallickal "wrbq create failed."); 27561462b8ffSDan Carpenter kfree(pwrb_arr); 27576733b39aSJayamohan Kallickal return status; 27586733b39aSJayamohan Kallickal } 27597da50879SJayamohan Kallickal phwi_ctrlr->wrb_context[i * 2].cid = phwi_context->be_wrbq[i]. 27607da50879SJayamohan Kallickal id; 27616733b39aSJayamohan Kallickal } 27626733b39aSJayamohan Kallickal kfree(pwrb_arr); 27636733b39aSJayamohan Kallickal return 0; 27646733b39aSJayamohan Kallickal } 27656733b39aSJayamohan Kallickal 27666733b39aSJayamohan Kallickal static void free_wrb_handles(struct beiscsi_hba *phba) 27676733b39aSJayamohan Kallickal { 27686733b39aSJayamohan Kallickal unsigned int index; 27696733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 27706733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 27716733b39aSJayamohan Kallickal 27726733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 27736733b39aSJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) { 27746733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 27756733b39aSJayamohan Kallickal kfree(pwrb_context->pwrb_handle_base); 27766733b39aSJayamohan Kallickal kfree(pwrb_context->pwrb_handle_basestd); 27776733b39aSJayamohan Kallickal } 27786733b39aSJayamohan Kallickal } 27796733b39aSJayamohan Kallickal 2780bfead3b2SJayamohan Kallickal static void be_mcc_queues_destroy(struct beiscsi_hba *phba) 2781bfead3b2SJayamohan Kallickal { 2782bfead3b2SJayamohan Kallickal struct be_queue_info *q; 2783bfead3b2SJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 2784bfead3b2SJayamohan Kallickal 2785bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.q; 2786bfead3b2SJayamohan Kallickal if (q->created) 2787bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_MCCQ); 2788bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 2789bfead3b2SJayamohan Kallickal 2790bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.cq; 2791bfead3b2SJayamohan Kallickal if (q->created) 2792bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ); 2793bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 2794bfead3b2SJayamohan Kallickal } 2795bfead3b2SJayamohan Kallickal 27966733b39aSJayamohan Kallickal static void hwi_cleanup(struct beiscsi_hba *phba) 27976733b39aSJayamohan Kallickal { 27986733b39aSJayamohan Kallickal struct be_queue_info *q; 27996733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 28006733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 28016733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 2802bfead3b2SJayamohan Kallickal int i, eq_num; 28036733b39aSJayamohan Kallickal 28046733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 28056733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 28066733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 28076733b39aSJayamohan Kallickal q = &phwi_context->be_wrbq[i]; 28086733b39aSJayamohan Kallickal if (q->created) 28096733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ); 28106733b39aSJayamohan Kallickal } 28116733b39aSJayamohan Kallickal free_wrb_handles(phba); 28126733b39aSJayamohan Kallickal 28136733b39aSJayamohan Kallickal q = &phwi_context->be_def_hdrq; 28146733b39aSJayamohan Kallickal if (q->created) 28156733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ); 28166733b39aSJayamohan Kallickal 28176733b39aSJayamohan Kallickal q = &phwi_context->be_def_dataq; 28186733b39aSJayamohan Kallickal if (q->created) 28196733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ); 28206733b39aSJayamohan Kallickal 28216733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL); 28226733b39aSJayamohan Kallickal 2823bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus); i++) { 2824bfead3b2SJayamohan Kallickal q = &phwi_context->be_cq[i]; 28256733b39aSJayamohan Kallickal if (q->created) 28266733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ); 2827bfead3b2SJayamohan Kallickal } 2828bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 2829bfead3b2SJayamohan Kallickal eq_num = 1; 2830bfead3b2SJayamohan Kallickal else 2831bfead3b2SJayamohan Kallickal eq_num = 0; 2832bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_num); i++) { 2833bfead3b2SJayamohan Kallickal q = &phwi_context->be_eq[i].q; 28346733b39aSJayamohan Kallickal if (q->created) 28356733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ); 28366733b39aSJayamohan Kallickal } 2837bfead3b2SJayamohan Kallickal be_mcc_queues_destroy(phba); 2838bfead3b2SJayamohan Kallickal } 2839bfead3b2SJayamohan Kallickal 2840bfead3b2SJayamohan Kallickal static int be_mcc_queues_create(struct beiscsi_hba *phba, 2841bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context) 2842bfead3b2SJayamohan Kallickal { 2843bfead3b2SJayamohan Kallickal struct be_queue_info *q, *cq; 2844bfead3b2SJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 2845bfead3b2SJayamohan Kallickal 2846bfead3b2SJayamohan Kallickal /* Alloc MCC compl queue */ 2847bfead3b2SJayamohan Kallickal cq = &phba->ctrl.mcc_obj.cq; 2848bfead3b2SJayamohan Kallickal if (be_queue_alloc(phba, cq, MCC_CQ_LEN, 2849bfead3b2SJayamohan Kallickal sizeof(struct be_mcc_compl))) 2850bfead3b2SJayamohan Kallickal goto err; 2851bfead3b2SJayamohan Kallickal /* Ask BE to create MCC compl queue; */ 2852bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 2853bfead3b2SJayamohan Kallickal if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq 2854bfead3b2SJayamohan Kallickal [phba->num_cpus].q, false, true, 0)) 2855bfead3b2SJayamohan Kallickal goto mcc_cq_free; 2856bfead3b2SJayamohan Kallickal } else { 2857bfead3b2SJayamohan Kallickal if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq[0].q, 2858bfead3b2SJayamohan Kallickal false, true, 0)) 2859bfead3b2SJayamohan Kallickal goto mcc_cq_free; 2860bfead3b2SJayamohan Kallickal } 2861bfead3b2SJayamohan Kallickal 2862bfead3b2SJayamohan Kallickal /* Alloc MCC queue */ 2863bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.q; 2864bfead3b2SJayamohan Kallickal if (be_queue_alloc(phba, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb))) 2865bfead3b2SJayamohan Kallickal goto mcc_cq_destroy; 2866bfead3b2SJayamohan Kallickal 2867bfead3b2SJayamohan Kallickal /* Ask BE to create MCC queue */ 286835e66019SJayamohan Kallickal if (beiscsi_cmd_mccq_create(phba, q, cq)) 2869bfead3b2SJayamohan Kallickal goto mcc_q_free; 2870bfead3b2SJayamohan Kallickal 2871bfead3b2SJayamohan Kallickal return 0; 2872bfead3b2SJayamohan Kallickal 2873bfead3b2SJayamohan Kallickal mcc_q_free: 2874bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 2875bfead3b2SJayamohan Kallickal mcc_cq_destroy: 2876bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, cq, QTYPE_CQ); 2877bfead3b2SJayamohan Kallickal mcc_cq_free: 2878bfead3b2SJayamohan Kallickal be_queue_free(phba, cq); 2879bfead3b2SJayamohan Kallickal err: 2880d3ad2bb3SJayamohan Kallickal return -ENOMEM; 2881bfead3b2SJayamohan Kallickal } 2882bfead3b2SJayamohan Kallickal 2883bfead3b2SJayamohan Kallickal static int find_num_cpus(void) 2884bfead3b2SJayamohan Kallickal { 2885bfead3b2SJayamohan Kallickal int num_cpus = 0; 2886bfead3b2SJayamohan Kallickal 2887bfead3b2SJayamohan Kallickal num_cpus = num_online_cpus(); 2888bfead3b2SJayamohan Kallickal if (num_cpus >= MAX_CPUS) 2889bfead3b2SJayamohan Kallickal num_cpus = MAX_CPUS - 1; 2890bfead3b2SJayamohan Kallickal 2891bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "num_cpus = %d\n", num_cpus); 2892bfead3b2SJayamohan Kallickal return num_cpus; 2893bfead3b2SJayamohan Kallickal } 28946733b39aSJayamohan Kallickal 28956733b39aSJayamohan Kallickal static int hwi_init_port(struct beiscsi_hba *phba) 28966733b39aSJayamohan Kallickal { 28976733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 28986733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 28996733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz; 29006733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 29016733b39aSJayamohan Kallickal int status; 29026733b39aSJayamohan Kallickal 29036733b39aSJayamohan Kallickal def_pdu_ring_sz = 29046733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl * sizeof(struct phys_addr); 29056733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 29066733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 2907bfead3b2SJayamohan Kallickal phwi_context->max_eqd = 0; 2908bfead3b2SJayamohan Kallickal phwi_context->min_eqd = 0; 2909bfead3b2SJayamohan Kallickal phwi_context->cur_eqd = 64; 29106733b39aSJayamohan Kallickal be_cmd_fw_initialize(&phba->ctrl); 2911bfead3b2SJayamohan Kallickal 2912bfead3b2SJayamohan Kallickal status = beiscsi_create_eqs(phba, phwi_context); 29136733b39aSJayamohan Kallickal if (status != 0) { 29146733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "EQ not created\n"); 29156733b39aSJayamohan Kallickal goto error; 29166733b39aSJayamohan Kallickal } 29176733b39aSJayamohan Kallickal 2918bfead3b2SJayamohan Kallickal status = be_mcc_queues_create(phba, phwi_context); 2919bfead3b2SJayamohan Kallickal if (status != 0) 2920bfead3b2SJayamohan Kallickal goto error; 2921bfead3b2SJayamohan Kallickal 2922bfead3b2SJayamohan Kallickal status = mgmt_check_supported_fw(ctrl, phba); 29236733b39aSJayamohan Kallickal if (status != 0) { 29246733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 29256733b39aSJayamohan Kallickal "Unsupported fw version\n"); 29266733b39aSJayamohan Kallickal goto error; 29276733b39aSJayamohan Kallickal } 29286733b39aSJayamohan Kallickal 2929bfead3b2SJayamohan Kallickal status = beiscsi_create_cqs(phba, phwi_context); 29306733b39aSJayamohan Kallickal if (status != 0) { 29316733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "CQ not created\n"); 29326733b39aSJayamohan Kallickal goto error; 29336733b39aSJayamohan Kallickal } 29346733b39aSJayamohan Kallickal 29356733b39aSJayamohan Kallickal status = beiscsi_create_def_hdr(phba, phwi_context, phwi_ctrlr, 29366733b39aSJayamohan Kallickal def_pdu_ring_sz); 29376733b39aSJayamohan Kallickal if (status != 0) { 29386733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 29396733b39aSJayamohan Kallickal "Default Header not created\n"); 29406733b39aSJayamohan Kallickal goto error; 29416733b39aSJayamohan Kallickal } 29426733b39aSJayamohan Kallickal 29436733b39aSJayamohan Kallickal status = beiscsi_create_def_data(phba, phwi_context, 29446733b39aSJayamohan Kallickal phwi_ctrlr, def_pdu_ring_sz); 29456733b39aSJayamohan Kallickal if (status != 0) { 29466733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 29476733b39aSJayamohan Kallickal "Default Data not created\n"); 29486733b39aSJayamohan Kallickal goto error; 29496733b39aSJayamohan Kallickal } 29506733b39aSJayamohan Kallickal 29516733b39aSJayamohan Kallickal status = beiscsi_post_pages(phba); 29526733b39aSJayamohan Kallickal if (status != 0) { 29536733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "Post SGL Pages Failed\n"); 29546733b39aSJayamohan Kallickal goto error; 29556733b39aSJayamohan Kallickal } 29566733b39aSJayamohan Kallickal 29576733b39aSJayamohan Kallickal status = beiscsi_create_wrb_rings(phba, phwi_context, phwi_ctrlr); 29586733b39aSJayamohan Kallickal if (status != 0) { 29596733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 29606733b39aSJayamohan Kallickal "WRB Rings not created\n"); 29616733b39aSJayamohan Kallickal goto error; 29626733b39aSJayamohan Kallickal } 29636733b39aSJayamohan Kallickal 29646733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "hwi_init_port success\n"); 29656733b39aSJayamohan Kallickal return 0; 29666733b39aSJayamohan Kallickal 29676733b39aSJayamohan Kallickal error: 29686733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "hwi_init_port failed"); 29696733b39aSJayamohan Kallickal hwi_cleanup(phba); 29706733b39aSJayamohan Kallickal return -ENOMEM; 29716733b39aSJayamohan Kallickal } 29726733b39aSJayamohan Kallickal 29736733b39aSJayamohan Kallickal static int hwi_init_controller(struct beiscsi_hba *phba) 29746733b39aSJayamohan Kallickal { 29756733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 29766733b39aSJayamohan Kallickal 29776733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 29786733b39aSJayamohan Kallickal if (1 == phba->init_mem[HWI_MEM_ADDN_CONTEXT].num_elements) { 29796733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt = (struct hwi_context_memory *)phba-> 29806733b39aSJayamohan Kallickal init_mem[HWI_MEM_ADDN_CONTEXT].mem_array[0].virtual_address; 29816733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, " phwi_ctrlr->phwi_ctxt=%p\n", 29826733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt); 29836733b39aSJayamohan Kallickal } else { 29846733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 29856733b39aSJayamohan Kallickal "HWI_MEM_ADDN_CONTEXT is more than one element." 29866733b39aSJayamohan Kallickal "Failing to load\n"); 29876733b39aSJayamohan Kallickal return -ENOMEM; 29886733b39aSJayamohan Kallickal } 29896733b39aSJayamohan Kallickal 29906733b39aSJayamohan Kallickal iscsi_init_global_templates(phba); 29916733b39aSJayamohan Kallickal beiscsi_init_wrb_handle(phba); 29926733b39aSJayamohan Kallickal hwi_init_async_pdu_ctx(phba); 29936733b39aSJayamohan Kallickal if (hwi_init_port(phba) != 0) { 29946733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 29956733b39aSJayamohan Kallickal "hwi_init_controller failed\n"); 29966733b39aSJayamohan Kallickal return -ENOMEM; 29976733b39aSJayamohan Kallickal } 29986733b39aSJayamohan Kallickal return 0; 29996733b39aSJayamohan Kallickal } 30006733b39aSJayamohan Kallickal 30016733b39aSJayamohan Kallickal static void beiscsi_free_mem(struct beiscsi_hba *phba) 30026733b39aSJayamohan Kallickal { 30036733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 30046733b39aSJayamohan Kallickal int i, j; 30056733b39aSJayamohan Kallickal 30066733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 30076733b39aSJayamohan Kallickal i = 0; 30086733b39aSJayamohan Kallickal j = 0; 30096733b39aSJayamohan Kallickal for (i = 0; i < SE_MEM_MAX; i++) { 30106733b39aSJayamohan Kallickal for (j = mem_descr->num_elements; j > 0; j--) { 30116733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 30126733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].size, 30136733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].virtual_address, 3014457ff3b7SJayamohan Kallickal (unsigned long)mem_descr->mem_array[j - 1]. 3015457ff3b7SJayamohan Kallickal bus_address.u.a64.address); 30166733b39aSJayamohan Kallickal } 30176733b39aSJayamohan Kallickal kfree(mem_descr->mem_array); 30186733b39aSJayamohan Kallickal mem_descr++; 30196733b39aSJayamohan Kallickal } 30206733b39aSJayamohan Kallickal kfree(phba->init_mem); 30216733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 30226733b39aSJayamohan Kallickal } 30236733b39aSJayamohan Kallickal 30246733b39aSJayamohan Kallickal static int beiscsi_init_controller(struct beiscsi_hba *phba) 30256733b39aSJayamohan Kallickal { 30266733b39aSJayamohan Kallickal int ret = -ENOMEM; 30276733b39aSJayamohan Kallickal 30286733b39aSJayamohan Kallickal ret = beiscsi_get_memory(phba); 30296733b39aSJayamohan Kallickal if (ret < 0) { 30306733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe -" 30316733b39aSJayamohan Kallickal "Failed in beiscsi_alloc_memory\n"); 30326733b39aSJayamohan Kallickal return ret; 30336733b39aSJayamohan Kallickal } 30346733b39aSJayamohan Kallickal 30356733b39aSJayamohan Kallickal ret = hwi_init_controller(phba); 30366733b39aSJayamohan Kallickal if (ret) 30376733b39aSJayamohan Kallickal goto free_init; 30386733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Return success from beiscsi_init_controller"); 30396733b39aSJayamohan Kallickal return 0; 30406733b39aSJayamohan Kallickal 30416733b39aSJayamohan Kallickal free_init: 30426733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 30436733b39aSJayamohan Kallickal return -ENOMEM; 30446733b39aSJayamohan Kallickal } 30456733b39aSJayamohan Kallickal 30466733b39aSJayamohan Kallickal static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba) 30476733b39aSJayamohan Kallickal { 30486733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg; 30496733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 30506733b39aSJayamohan Kallickal struct iscsi_sge *pfrag; 30516733b39aSJayamohan Kallickal unsigned int arr_index, i, idx; 30526733b39aSJayamohan Kallickal 30536733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl = 0; 30546733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl = 0; 3055bfead3b2SJayamohan Kallickal 30566733b39aSJayamohan Kallickal mem_descr_sglh = phba->init_mem; 30576733b39aSJayamohan Kallickal mem_descr_sglh += HWI_MEM_SGLH; 30586733b39aSJayamohan Kallickal if (1 == mem_descr_sglh->num_elements) { 30596733b39aSJayamohan Kallickal phba->io_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) * 30606733b39aSJayamohan Kallickal phba->params.ios_per_ctrl, 30616733b39aSJayamohan Kallickal GFP_KERNEL); 30626733b39aSJayamohan Kallickal if (!phba->io_sgl_hndl_base) { 30636733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 30646733b39aSJayamohan Kallickal "Mem Alloc Failed. Failing to load\n"); 30656733b39aSJayamohan Kallickal return -ENOMEM; 30666733b39aSJayamohan Kallickal } 30676733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) * 30686733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - 30696733b39aSJayamohan Kallickal phba->params.ios_per_ctrl), 30706733b39aSJayamohan Kallickal GFP_KERNEL); 30716733b39aSJayamohan Kallickal if (!phba->eh_sgl_hndl_base) { 30726733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 30736733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 30746733b39aSJayamohan Kallickal "Mem Alloc Failed. Failing to load\n"); 30756733b39aSJayamohan Kallickal return -ENOMEM; 30766733b39aSJayamohan Kallickal } 30776733b39aSJayamohan Kallickal } else { 30786733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 30796733b39aSJayamohan Kallickal "HWI_MEM_SGLH is more than one element." 30806733b39aSJayamohan Kallickal "Failing to load\n"); 30816733b39aSJayamohan Kallickal return -ENOMEM; 30826733b39aSJayamohan Kallickal } 30836733b39aSJayamohan Kallickal 30846733b39aSJayamohan Kallickal arr_index = 0; 30856733b39aSJayamohan Kallickal idx = 0; 30866733b39aSJayamohan Kallickal while (idx < mem_descr_sglh->num_elements) { 30876733b39aSJayamohan Kallickal psgl_handle = mem_descr_sglh->mem_array[idx].virtual_address; 30886733b39aSJayamohan Kallickal 30896733b39aSJayamohan Kallickal for (i = 0; i < (mem_descr_sglh->mem_array[idx].size / 30906733b39aSJayamohan Kallickal sizeof(struct sgl_handle)); i++) { 30916733b39aSJayamohan Kallickal if (arr_index < phba->params.ios_per_ctrl) { 30926733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[arr_index] = psgl_handle; 30936733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl++; 30946733b39aSJayamohan Kallickal arr_index++; 30956733b39aSJayamohan Kallickal } else { 30966733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[arr_index - 30976733b39aSJayamohan Kallickal phba->params.ios_per_ctrl] = 30986733b39aSJayamohan Kallickal psgl_handle; 30996733b39aSJayamohan Kallickal arr_index++; 31006733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl++; 31016733b39aSJayamohan Kallickal } 31026733b39aSJayamohan Kallickal psgl_handle++; 31036733b39aSJayamohan Kallickal } 31046733b39aSJayamohan Kallickal idx++; 31056733b39aSJayamohan Kallickal } 31066733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 31076733b39aSJayamohan Kallickal "phba->io_sgl_hndl_avbl=%d" 31086733b39aSJayamohan Kallickal "phba->eh_sgl_hndl_avbl=%d\n", 31096733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl, 31106733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl); 31116733b39aSJayamohan Kallickal mem_descr_sg = phba->init_mem; 31126733b39aSJayamohan Kallickal mem_descr_sg += HWI_MEM_SGE; 31136733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "\n mem_descr_sg->num_elements=%d\n", 31146733b39aSJayamohan Kallickal mem_descr_sg->num_elements); 31156733b39aSJayamohan Kallickal arr_index = 0; 31166733b39aSJayamohan Kallickal idx = 0; 31176733b39aSJayamohan Kallickal while (idx < mem_descr_sg->num_elements) { 31186733b39aSJayamohan Kallickal pfrag = mem_descr_sg->mem_array[idx].virtual_address; 31196733b39aSJayamohan Kallickal 31206733b39aSJayamohan Kallickal for (i = 0; 31216733b39aSJayamohan Kallickal i < (mem_descr_sg->mem_array[idx].size) / 31226733b39aSJayamohan Kallickal (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io); 31236733b39aSJayamohan Kallickal i++) { 31246733b39aSJayamohan Kallickal if (arr_index < phba->params.ios_per_ctrl) 31256733b39aSJayamohan Kallickal psgl_handle = phba->io_sgl_hndl_base[arr_index]; 31266733b39aSJayamohan Kallickal else 31276733b39aSJayamohan Kallickal psgl_handle = phba->eh_sgl_hndl_base[arr_index - 31286733b39aSJayamohan Kallickal phba->params.ios_per_ctrl]; 31296733b39aSJayamohan Kallickal psgl_handle->pfrag = pfrag; 31306733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, pfrag, 0); 31316733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0); 31326733b39aSJayamohan Kallickal pfrag += phba->params.num_sge_per_io; 31336733b39aSJayamohan Kallickal psgl_handle->sgl_index = 31347da50879SJayamohan Kallickal phba->fw_config.iscsi_icd_start + arr_index++; 31356733b39aSJayamohan Kallickal } 31366733b39aSJayamohan Kallickal idx++; 31376733b39aSJayamohan Kallickal } 31386733b39aSJayamohan Kallickal phba->io_sgl_free_index = 0; 31396733b39aSJayamohan Kallickal phba->io_sgl_alloc_index = 0; 31406733b39aSJayamohan Kallickal phba->eh_sgl_free_index = 0; 31416733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index = 0; 31426733b39aSJayamohan Kallickal return 0; 31436733b39aSJayamohan Kallickal } 31446733b39aSJayamohan Kallickal 31456733b39aSJayamohan Kallickal static int hba_setup_cid_tbls(struct beiscsi_hba *phba) 31466733b39aSJayamohan Kallickal { 31476733b39aSJayamohan Kallickal int i, new_cid; 31486733b39aSJayamohan Kallickal 3149c2462288SJayamohan Kallickal phba->cid_array = kzalloc(sizeof(void *) * phba->params.cxns_per_ctrl, 31506733b39aSJayamohan Kallickal GFP_KERNEL); 31516733b39aSJayamohan Kallickal if (!phba->cid_array) { 31526733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 31536733b39aSJayamohan Kallickal "Failed to allocate memory in " 31546733b39aSJayamohan Kallickal "hba_setup_cid_tbls\n"); 31556733b39aSJayamohan Kallickal return -ENOMEM; 31566733b39aSJayamohan Kallickal } 3157c2462288SJayamohan Kallickal phba->ep_array = kzalloc(sizeof(struct iscsi_endpoint *) * 31586733b39aSJayamohan Kallickal phba->params.cxns_per_ctrl * 2, GFP_KERNEL); 31596733b39aSJayamohan Kallickal if (!phba->ep_array) { 31606733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 31616733b39aSJayamohan Kallickal "Failed to allocate memory in " 31626733b39aSJayamohan Kallickal "hba_setup_cid_tbls\n"); 31636733b39aSJayamohan Kallickal kfree(phba->cid_array); 31646733b39aSJayamohan Kallickal return -ENOMEM; 31656733b39aSJayamohan Kallickal } 31667da50879SJayamohan Kallickal new_cid = phba->fw_config.iscsi_cid_start; 31676733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 31686733b39aSJayamohan Kallickal phba->cid_array[i] = new_cid; 31696733b39aSJayamohan Kallickal new_cid += 2; 31706733b39aSJayamohan Kallickal } 31716733b39aSJayamohan Kallickal phba->avlbl_cids = phba->params.cxns_per_ctrl; 31726733b39aSJayamohan Kallickal return 0; 31736733b39aSJayamohan Kallickal } 31746733b39aSJayamohan Kallickal 3175238f6b72SJayamohan Kallickal static void hwi_enable_intr(struct beiscsi_hba *phba) 31766733b39aSJayamohan Kallickal { 31776733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 31786733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 31796733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 31806733b39aSJayamohan Kallickal struct be_queue_info *eq; 31816733b39aSJayamohan Kallickal u8 __iomem *addr; 3182bfead3b2SJayamohan Kallickal u32 reg, i; 31836733b39aSJayamohan Kallickal u32 enabled; 31846733b39aSJayamohan Kallickal 31856733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 31866733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 31876733b39aSJayamohan Kallickal 31886733b39aSJayamohan Kallickal addr = (u8 __iomem *) ((u8 __iomem *) ctrl->pcicfg + 31896733b39aSJayamohan Kallickal PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET); 31906733b39aSJayamohan Kallickal reg = ioread32(addr); 31916733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "reg =x%08x\n", reg); 31926733b39aSJayamohan Kallickal 31936733b39aSJayamohan Kallickal enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 31946733b39aSJayamohan Kallickal if (!enabled) { 31956733b39aSJayamohan Kallickal reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 31966733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "reg =x%08x addr=%p\n", reg, addr); 31976733b39aSJayamohan Kallickal iowrite32(reg, addr); 3198c03af1aeSJayamohan Kallickal if (!phba->msix_enabled) { 3199c03af1aeSJayamohan Kallickal eq = &phwi_context->be_eq[0].q; 3200c03af1aeSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "eq->id=%d\n", eq->id); 3201c03af1aeSJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1); 3202c03af1aeSJayamohan Kallickal } else { 3203bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) { 3204bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 32056733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "eq->id=%d\n", eq->id); 32066733b39aSJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1); 3207bfead3b2SJayamohan Kallickal } 3208c03af1aeSJayamohan Kallickal } 3209c03af1aeSJayamohan Kallickal } 32106733b39aSJayamohan Kallickal } 32116733b39aSJayamohan Kallickal 32126733b39aSJayamohan Kallickal static void hwi_disable_intr(struct beiscsi_hba *phba) 32136733b39aSJayamohan Kallickal { 32146733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 32156733b39aSJayamohan Kallickal 32166733b39aSJayamohan Kallickal u8 __iomem *addr = ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET; 32176733b39aSJayamohan Kallickal u32 reg = ioread32(addr); 32186733b39aSJayamohan Kallickal 32196733b39aSJayamohan Kallickal u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 32206733b39aSJayamohan Kallickal if (enabled) { 32216733b39aSJayamohan Kallickal reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 32226733b39aSJayamohan Kallickal iowrite32(reg, addr); 32236733b39aSJayamohan Kallickal } else 32246733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 32256733b39aSJayamohan Kallickal "In hwi_disable_intr, Already Disabled\n"); 32266733b39aSJayamohan Kallickal } 32276733b39aSJayamohan Kallickal 32286733b39aSJayamohan Kallickal static int beiscsi_init_port(struct beiscsi_hba *phba) 32296733b39aSJayamohan Kallickal { 32306733b39aSJayamohan Kallickal int ret; 32316733b39aSJayamohan Kallickal 32326733b39aSJayamohan Kallickal ret = beiscsi_init_controller(phba); 32336733b39aSJayamohan Kallickal if (ret < 0) { 32346733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 32356733b39aSJayamohan Kallickal "beiscsi_dev_probe - Failed in" 32366733b39aSJayamohan Kallickal "beiscsi_init_controller\n"); 32376733b39aSJayamohan Kallickal return ret; 32386733b39aSJayamohan Kallickal } 32396733b39aSJayamohan Kallickal ret = beiscsi_init_sgl_handle(phba); 32406733b39aSJayamohan Kallickal if (ret < 0) { 32416733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 32426733b39aSJayamohan Kallickal "beiscsi_dev_probe - Failed in" 32436733b39aSJayamohan Kallickal "beiscsi_init_sgl_handle\n"); 32446733b39aSJayamohan Kallickal goto do_cleanup_ctrlr; 32456733b39aSJayamohan Kallickal } 32466733b39aSJayamohan Kallickal 32476733b39aSJayamohan Kallickal if (hba_setup_cid_tbls(phba)) { 32486733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 32496733b39aSJayamohan Kallickal "Failed in hba_setup_cid_tbls\n"); 32506733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 32516733b39aSJayamohan Kallickal kfree(phba->eh_sgl_hndl_base); 32526733b39aSJayamohan Kallickal goto do_cleanup_ctrlr; 32536733b39aSJayamohan Kallickal } 32546733b39aSJayamohan Kallickal 32556733b39aSJayamohan Kallickal return ret; 32566733b39aSJayamohan Kallickal 32576733b39aSJayamohan Kallickal do_cleanup_ctrlr: 32586733b39aSJayamohan Kallickal hwi_cleanup(phba); 32596733b39aSJayamohan Kallickal return ret; 32606733b39aSJayamohan Kallickal } 32616733b39aSJayamohan Kallickal 32626733b39aSJayamohan Kallickal static void hwi_purge_eq(struct beiscsi_hba *phba) 32636733b39aSJayamohan Kallickal { 32646733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 32656733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 32666733b39aSJayamohan Kallickal struct be_queue_info *eq; 32676733b39aSJayamohan Kallickal struct be_eq_entry *eqe = NULL; 3268bfead3b2SJayamohan Kallickal int i, eq_msix; 3269756d29c8SJayamohan Kallickal unsigned int num_processed; 32706733b39aSJayamohan Kallickal 32716733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 32726733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 3273bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 3274bfead3b2SJayamohan Kallickal eq_msix = 1; 3275bfead3b2SJayamohan Kallickal else 3276bfead3b2SJayamohan Kallickal eq_msix = 0; 3277bfead3b2SJayamohan Kallickal 3278bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_msix); i++) { 3279bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 32806733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 3281756d29c8SJayamohan Kallickal num_processed = 0; 32826733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 32836733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 32846733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 32856733b39aSJayamohan Kallickal queue_tail_inc(eq); 32866733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 3287756d29c8SJayamohan Kallickal num_processed++; 32886733b39aSJayamohan Kallickal } 3289756d29c8SJayamohan Kallickal 3290756d29c8SJayamohan Kallickal if (num_processed) 3291756d29c8SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_processed, 1, 1); 32926733b39aSJayamohan Kallickal } 3293bfead3b2SJayamohan Kallickal } 32946733b39aSJayamohan Kallickal 32956733b39aSJayamohan Kallickal static void beiscsi_clean_port(struct beiscsi_hba *phba) 32966733b39aSJayamohan Kallickal { 329703a12310SJayamohan Kallickal int mgmt_status; 32986733b39aSJayamohan Kallickal 32996733b39aSJayamohan Kallickal mgmt_status = mgmt_epfw_cleanup(phba, CMD_CONNECTION_CHUTE_0); 33006733b39aSJayamohan Kallickal if (mgmt_status) 33016733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 33026733b39aSJayamohan Kallickal "mgmt_epfw_cleanup FAILED\n"); 3303756d29c8SJayamohan Kallickal 33046733b39aSJayamohan Kallickal hwi_purge_eq(phba); 3305756d29c8SJayamohan Kallickal hwi_cleanup(phba); 33066733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 33076733b39aSJayamohan Kallickal kfree(phba->eh_sgl_hndl_base); 33086733b39aSJayamohan Kallickal kfree(phba->cid_array); 33096733b39aSJayamohan Kallickal kfree(phba->ep_array); 33106733b39aSJayamohan Kallickal } 33116733b39aSJayamohan Kallickal 33126733b39aSJayamohan Kallickal void 33136733b39aSJayamohan Kallickal beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn, 33146733b39aSJayamohan Kallickal struct beiscsi_offload_params *params) 33156733b39aSJayamohan Kallickal { 33166733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 33176733b39aSJayamohan Kallickal struct iscsi_target_context_update_wrb *pwrb = NULL; 33186733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 33196733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 33206733b39aSJayamohan Kallickal u32 doorbell = 0; 33216733b39aSJayamohan Kallickal 33226733b39aSJayamohan Kallickal /* 33236733b39aSJayamohan Kallickal * We can always use 0 here because it is reserved by libiscsi for 33246733b39aSJayamohan Kallickal * login/startup related tasks. 33256733b39aSJayamohan Kallickal */ 33267da50879SJayamohan Kallickal pwrb_handle = alloc_wrb_handle(phba, (beiscsi_conn->beiscsi_conn_cid - 3327d5431488SJayamohan Kallickal phba->fw_config.iscsi_cid_start)); 33286733b39aSJayamohan Kallickal pwrb = (struct iscsi_target_context_update_wrb *)pwrb_handle->pwrb; 33296733b39aSJayamohan Kallickal memset(pwrb, 0, sizeof(*pwrb)); 33306733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 33316733b39aSJayamohan Kallickal max_burst_length, pwrb, params->dw[offsetof 33326733b39aSJayamohan Kallickal (struct amap_beiscsi_offload_params, 33336733b39aSJayamohan Kallickal max_burst_length) / 32]); 33346733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 33356733b39aSJayamohan Kallickal max_send_data_segment_length, pwrb, 33366733b39aSJayamohan Kallickal params->dw[offsetof(struct amap_beiscsi_offload_params, 33376733b39aSJayamohan Kallickal max_send_data_segment_length) / 32]); 33386733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 33396733b39aSJayamohan Kallickal first_burst_length, 33406733b39aSJayamohan Kallickal pwrb, 33416733b39aSJayamohan Kallickal params->dw[offsetof(struct amap_beiscsi_offload_params, 33426733b39aSJayamohan Kallickal first_burst_length) / 32]); 33436733b39aSJayamohan Kallickal 33446733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, erl, pwrb, 33456733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 33466733b39aSJayamohan Kallickal erl) / 32] & OFFLD_PARAMS_ERL)); 33476733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, dde, pwrb, 33486733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 33496733b39aSJayamohan Kallickal dde) / 32] & OFFLD_PARAMS_DDE) >> 2); 33506733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, hde, pwrb, 33516733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 33526733b39aSJayamohan Kallickal hde) / 32] & OFFLD_PARAMS_HDE) >> 3); 33536733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ir2t, pwrb, 33546733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 33556733b39aSJayamohan Kallickal ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4); 33566733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, imd, pwrb, 33576733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 33586733b39aSJayamohan Kallickal imd) / 32] & OFFLD_PARAMS_IMD) >> 5); 33596733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, stat_sn, 33606733b39aSJayamohan Kallickal pwrb, 33616733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 33626733b39aSJayamohan Kallickal exp_statsn) / 32] + 1)); 33636733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, type, pwrb, 33646733b39aSJayamohan Kallickal 0x7); 33656733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, wrb_idx, 33666733b39aSJayamohan Kallickal pwrb, pwrb_handle->wrb_index); 33676733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ptr2nextwrb, 33686733b39aSJayamohan Kallickal pwrb, pwrb_handle->nxt_wrb_index); 33696733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 33706733b39aSJayamohan Kallickal session_state, pwrb, 0); 33716733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, compltonack, 33726733b39aSJayamohan Kallickal pwrb, 1); 33736733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, notpredblq, 33746733b39aSJayamohan Kallickal pwrb, 0); 33756733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, mode, pwrb, 33766733b39aSJayamohan Kallickal 0); 33776733b39aSJayamohan Kallickal 33786733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 33796733b39aSJayamohan Kallickal mem_descr += ISCSI_MEM_GLOBAL_HEADER; 33806733b39aSJayamohan Kallickal 33816733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 33826733b39aSJayamohan Kallickal pad_buffer_addr_hi, pwrb, 33836733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a32.address_hi); 33846733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 33856733b39aSJayamohan Kallickal pad_buffer_addr_lo, pwrb, 33866733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a32.address_lo); 33876733b39aSJayamohan Kallickal 33886733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_target_context_update_wrb)); 33896733b39aSJayamohan Kallickal 33906733b39aSJayamohan Kallickal doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 3391bfead3b2SJayamohan Kallickal doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK) 3392bfead3b2SJayamohan Kallickal << DB_DEF_PDU_WRB_INDEX_SHIFT; 33936733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 33946733b39aSJayamohan Kallickal 33956733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); 33966733b39aSJayamohan Kallickal } 33976733b39aSJayamohan Kallickal 33986733b39aSJayamohan Kallickal static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt, 33996733b39aSJayamohan Kallickal int *index, int *age) 34006733b39aSJayamohan Kallickal { 3401bfead3b2SJayamohan Kallickal *index = (int)itt; 34026733b39aSJayamohan Kallickal if (age) 34036733b39aSJayamohan Kallickal *age = conn->session->age; 34046733b39aSJayamohan Kallickal } 34056733b39aSJayamohan Kallickal 34066733b39aSJayamohan Kallickal /** 34076733b39aSJayamohan Kallickal * beiscsi_alloc_pdu - allocates pdu and related resources 34086733b39aSJayamohan Kallickal * @task: libiscsi task 34096733b39aSJayamohan Kallickal * @opcode: opcode of pdu for task 34106733b39aSJayamohan Kallickal * 34116733b39aSJayamohan Kallickal * This is called with the session lock held. It will allocate 34126733b39aSJayamohan Kallickal * the wrb and sgl if needed for the command. And it will prep 34136733b39aSJayamohan Kallickal * the pdu's itt. beiscsi_parse_pdu will later translate 34146733b39aSJayamohan Kallickal * the pdu itt to the libiscsi task itt. 34156733b39aSJayamohan Kallickal */ 34166733b39aSJayamohan Kallickal static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 34176733b39aSJayamohan Kallickal { 34186733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 34196733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 34206733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 34216733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 34226733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 34236733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 34246733b39aSJayamohan Kallickal itt_t itt; 34252afc95bfSJayamohan Kallickal struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess; 34262afc95bfSJayamohan Kallickal dma_addr_t paddr; 34276733b39aSJayamohan Kallickal 34282afc95bfSJayamohan Kallickal io_task->cmd_bhs = pci_pool_alloc(beiscsi_sess->bhs_pool, 34292afc95bfSJayamohan Kallickal GFP_KERNEL, &paddr); 34302afc95bfSJayamohan Kallickal if (!io_task->cmd_bhs) 34312afc95bfSJayamohan Kallickal return -ENOMEM; 34322afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address = paddr; 3433bfead3b2SJayamohan Kallickal io_task->libiscsi_itt = (itt_t)task->itt; 34346733b39aSJayamohan Kallickal io_task->pwrb_handle = alloc_wrb_handle(phba, 34357da50879SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid - 3436d5431488SJayamohan Kallickal phba->fw_config.iscsi_cid_start 3437d5431488SJayamohan Kallickal ); 34386733b39aSJayamohan Kallickal io_task->conn = beiscsi_conn; 34396733b39aSJayamohan Kallickal 34406733b39aSJayamohan Kallickal task->hdr = (struct iscsi_hdr *)&io_task->cmd_bhs->iscsi_hdr; 34416733b39aSJayamohan Kallickal task->hdr_max = sizeof(struct be_cmd_bhs); 34426733b39aSJayamohan Kallickal 34436733b39aSJayamohan Kallickal if (task->sc) { 34446733b39aSJayamohan Kallickal spin_lock(&phba->io_sgl_lock); 34456733b39aSJayamohan Kallickal io_task->psgl_handle = alloc_io_sgl_handle(phba); 34466733b39aSJayamohan Kallickal spin_unlock(&phba->io_sgl_lock); 34472afc95bfSJayamohan Kallickal if (!io_task->psgl_handle) 34482afc95bfSJayamohan Kallickal goto free_hndls; 34496733b39aSJayamohan Kallickal } else { 34506733b39aSJayamohan Kallickal io_task->scsi_cmnd = NULL; 3451d7aea67bSJayamohan Kallickal if ((opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) { 34526733b39aSJayamohan Kallickal if (!beiscsi_conn->login_in_progress) { 34536733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 34546733b39aSJayamohan Kallickal io_task->psgl_handle = (struct sgl_handle *) 34556733b39aSJayamohan Kallickal alloc_mgmt_sgl_handle(phba); 34566733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 34572afc95bfSJayamohan Kallickal if (!io_task->psgl_handle) 34582afc95bfSJayamohan Kallickal goto free_hndls; 34592afc95bfSJayamohan Kallickal 34606733b39aSJayamohan Kallickal beiscsi_conn->login_in_progress = 1; 34616733b39aSJayamohan Kallickal beiscsi_conn->plogin_sgl_handle = 34626733b39aSJayamohan Kallickal io_task->psgl_handle; 34636733b39aSJayamohan Kallickal } else { 34646733b39aSJayamohan Kallickal io_task->psgl_handle = 34656733b39aSJayamohan Kallickal beiscsi_conn->plogin_sgl_handle; 34666733b39aSJayamohan Kallickal } 34676733b39aSJayamohan Kallickal } else { 34686733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 34696733b39aSJayamohan Kallickal io_task->psgl_handle = alloc_mgmt_sgl_handle(phba); 34706733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 34712afc95bfSJayamohan Kallickal if (!io_task->psgl_handle) 34722afc95bfSJayamohan Kallickal goto free_hndls; 34736733b39aSJayamohan Kallickal } 34746733b39aSJayamohan Kallickal } 3475bfead3b2SJayamohan Kallickal itt = (itt_t) cpu_to_be32(((unsigned int)io_task->pwrb_handle-> 3476bfead3b2SJayamohan Kallickal wrb_index << 16) | (unsigned int) 3477bfead3b2SJayamohan Kallickal (io_task->psgl_handle->sgl_index)); 3478bfead3b2SJayamohan Kallickal io_task->pwrb_handle->pio_handle = task; 3479bfead3b2SJayamohan Kallickal 34806733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.itt = itt; 34816733b39aSJayamohan Kallickal return 0; 34822afc95bfSJayamohan Kallickal 34832afc95bfSJayamohan Kallickal free_hndls: 34842afc95bfSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 34857da50879SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[ 34867da50879SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid - 34877da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 34882afc95bfSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle); 34892afc95bfSJayamohan Kallickal io_task->pwrb_handle = NULL; 34902afc95bfSJayamohan Kallickal pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs, 34912afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address); 34922afc95bfSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "Alloc of SGL_ICD Failed\n"); 34932afc95bfSJayamohan Kallickal return -ENOMEM; 34946733b39aSJayamohan Kallickal } 34956733b39aSJayamohan Kallickal 34966733b39aSJayamohan Kallickal static void beiscsi_cleanup_task(struct iscsi_task *task) 34976733b39aSJayamohan Kallickal { 34986733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 34996733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 35006733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 35016733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 35022afc95bfSJayamohan Kallickal struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess; 35036733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 35046733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 35056733b39aSJayamohan Kallickal 35066733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 35077da50879SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[beiscsi_conn->beiscsi_conn_cid 35087da50879SJayamohan Kallickal - phba->fw_config.iscsi_cid_start]; 35096733b39aSJayamohan Kallickal if (io_task->pwrb_handle) { 35106733b39aSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle); 35116733b39aSJayamohan Kallickal io_task->pwrb_handle = NULL; 35126733b39aSJayamohan Kallickal } 35136733b39aSJayamohan Kallickal 35142afc95bfSJayamohan Kallickal if (io_task->cmd_bhs) { 35152afc95bfSJayamohan Kallickal pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs, 35162afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address); 35172afc95bfSJayamohan Kallickal } 35182afc95bfSJayamohan Kallickal 35196733b39aSJayamohan Kallickal if (task->sc) { 35206733b39aSJayamohan Kallickal if (io_task->psgl_handle) { 35216733b39aSJayamohan Kallickal spin_lock(&phba->io_sgl_lock); 35226733b39aSJayamohan Kallickal free_io_sgl_handle(phba, io_task->psgl_handle); 35236733b39aSJayamohan Kallickal spin_unlock(&phba->io_sgl_lock); 35246733b39aSJayamohan Kallickal io_task->psgl_handle = NULL; 35256733b39aSJayamohan Kallickal } 35266733b39aSJayamohan Kallickal } else { 35276733b39aSJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) 35286733b39aSJayamohan Kallickal return; 35296733b39aSJayamohan Kallickal if (io_task->psgl_handle) { 35306733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 35316733b39aSJayamohan Kallickal free_mgmt_sgl_handle(phba, io_task->psgl_handle); 35326733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 35336733b39aSJayamohan Kallickal io_task->psgl_handle = NULL; 35346733b39aSJayamohan Kallickal } 35356733b39aSJayamohan Kallickal } 35366733b39aSJayamohan Kallickal } 35376733b39aSJayamohan Kallickal 35386733b39aSJayamohan Kallickal static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg, 35396733b39aSJayamohan Kallickal unsigned int num_sg, unsigned int xferlen, 35406733b39aSJayamohan Kallickal unsigned int writedir) 35416733b39aSJayamohan Kallickal { 35426733b39aSJayamohan Kallickal 35436733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 35446733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 35456733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 35466733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 35476733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 35486733b39aSJayamohan Kallickal unsigned int doorbell = 0; 35496733b39aSJayamohan Kallickal 35506733b39aSJayamohan Kallickal pwrb = io_task->pwrb_handle->pwrb; 35516733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.exp_statsn = 0; 35526733b39aSJayamohan Kallickal io_task->bhs_len = sizeof(struct be_cmd_bhs); 35536733b39aSJayamohan Kallickal 35546733b39aSJayamohan Kallickal if (writedir) { 35556733b39aSJayamohan Kallickal memset(&io_task->cmd_bhs->iscsi_data_pdu, 0, 48); 35566733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, itt, 35576733b39aSJayamohan Kallickal &io_task->cmd_bhs->iscsi_data_pdu, 35586733b39aSJayamohan Kallickal (unsigned int)io_task->cmd_bhs->iscsi_hdr.itt); 35596733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, opcode, 35606733b39aSJayamohan Kallickal &io_task->cmd_bhs->iscsi_data_pdu, 35616733b39aSJayamohan Kallickal ISCSI_OPCODE_SCSI_DATA_OUT); 35626733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, final_bit, 35636733b39aSJayamohan Kallickal &io_task->cmd_bhs->iscsi_data_pdu, 1); 3564bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3565bfead3b2SJayamohan Kallickal INI_WR_CMD); 35666733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1); 35676733b39aSJayamohan Kallickal } else { 3568bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3569bfead3b2SJayamohan Kallickal INI_RD_CMD); 35706733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 35716733b39aSJayamohan Kallickal } 35726733b39aSJayamohan Kallickal memcpy(&io_task->cmd_bhs->iscsi_data_pdu. 35736733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_data_out, lun) / 32], 35746733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.lun, sizeof(struct scsi_lun)); 35756733b39aSJayamohan Kallickal 35766733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, lun, pwrb, 35776733b39aSJayamohan Kallickal cpu_to_be16((unsigned short)io_task->cmd_bhs->iscsi_hdr. 35786733b39aSJayamohan Kallickal lun[0])); 35796733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, xferlen); 35806733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb, 35816733b39aSJayamohan Kallickal io_task->pwrb_handle->wrb_index); 35826733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 35836733b39aSJayamohan Kallickal be32_to_cpu(task->cmdsn)); 35846733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb, 35856733b39aSJayamohan Kallickal io_task->psgl_handle->sgl_index); 35866733b39aSJayamohan Kallickal 35876733b39aSJayamohan Kallickal hwi_write_sgl(pwrb, sg, num_sg, io_task); 35886733b39aSJayamohan Kallickal 35896733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb, 35906733b39aSJayamohan Kallickal io_task->pwrb_handle->nxt_wrb_index); 35916733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb)); 35926733b39aSJayamohan Kallickal 35936733b39aSJayamohan Kallickal doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 35946733b39aSJayamohan Kallickal doorbell |= (io_task->pwrb_handle->wrb_index & 35956733b39aSJayamohan Kallickal DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; 35966733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 35976733b39aSJayamohan Kallickal 35986733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); 35996733b39aSJayamohan Kallickal return 0; 36006733b39aSJayamohan Kallickal } 36016733b39aSJayamohan Kallickal 36026733b39aSJayamohan Kallickal static int beiscsi_mtask(struct iscsi_task *task) 36036733b39aSJayamohan Kallickal { 3604dafab8e0SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 36056733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 36066733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 36076733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 36086733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 36096733b39aSJayamohan Kallickal unsigned int doorbell = 0; 3610dafab8e0SJayamohan Kallickal unsigned int cid; 36116733b39aSJayamohan Kallickal 3612bfead3b2SJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 36136733b39aSJayamohan Kallickal pwrb = io_task->pwrb_handle->pwrb; 3614caf818f1SJayamohan Kallickal memset(pwrb, 0, sizeof(*pwrb)); 36156733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 36166733b39aSJayamohan Kallickal be32_to_cpu(task->cmdsn)); 36176733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb, 36186733b39aSJayamohan Kallickal io_task->pwrb_handle->wrb_index); 36196733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb, 36206733b39aSJayamohan Kallickal io_task->psgl_handle->sgl_index); 3621dafab8e0SJayamohan Kallickal 36226733b39aSJayamohan Kallickal switch (task->hdr->opcode & ISCSI_OPCODE_MASK) { 36236733b39aSJayamohan Kallickal case ISCSI_OP_LOGIN: 3624bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3625bfead3b2SJayamohan Kallickal TGT_DM_CMD); 36266733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 36276733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 1); 36286733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 36296733b39aSJayamohan Kallickal break; 36306733b39aSJayamohan Kallickal case ISCSI_OP_NOOP_OUT: 3631bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3632bfead3b2SJayamohan Kallickal INI_RD_CMD); 36330ecb0b45SJayamohan Kallickal if (task->hdr->ttt == ISCSI_RESERVED_TAG) 36340ecb0b45SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 36350ecb0b45SJayamohan Kallickal else 36360ecb0b45SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 1); 36376733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 36386733b39aSJayamohan Kallickal break; 36396733b39aSJayamohan Kallickal case ISCSI_OP_TEXT: 3640bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3641b30c6dabSJayamohan Kallickal TGT_DM_CMD); 36420ecb0b45SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 36436733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 36446733b39aSJayamohan Kallickal break; 36456733b39aSJayamohan Kallickal case ISCSI_OP_SCSI_TMFUNC: 3646bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3647bfead3b2SJayamohan Kallickal INI_TMF_CMD); 36486733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 36496733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 36506733b39aSJayamohan Kallickal break; 36516733b39aSJayamohan Kallickal case ISCSI_OP_LOGOUT: 36526733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 36536733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 36546733b39aSJayamohan Kallickal HWH_TYPE_LOGOUT); 36556733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 36566733b39aSJayamohan Kallickal break; 36576733b39aSJayamohan Kallickal 36586733b39aSJayamohan Kallickal default: 36596733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "opcode =%d Not supported\n", 36606733b39aSJayamohan Kallickal task->hdr->opcode & ISCSI_OPCODE_MASK); 36616733b39aSJayamohan Kallickal return -EINVAL; 36626733b39aSJayamohan Kallickal } 36636733b39aSJayamohan Kallickal 36646733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, 366551a46250SJayamohan Kallickal task->data_count); 36666733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb, 36676733b39aSJayamohan Kallickal io_task->pwrb_handle->nxt_wrb_index); 36686733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb)); 36696733b39aSJayamohan Kallickal 3670bfead3b2SJayamohan Kallickal doorbell |= cid & DB_WRB_POST_CID_MASK; 36716733b39aSJayamohan Kallickal doorbell |= (io_task->pwrb_handle->wrb_index & 36726733b39aSJayamohan Kallickal DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; 36736733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 36746733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); 36756733b39aSJayamohan Kallickal return 0; 36766733b39aSJayamohan Kallickal } 36776733b39aSJayamohan Kallickal 36786733b39aSJayamohan Kallickal static int beiscsi_task_xmit(struct iscsi_task *task) 36796733b39aSJayamohan Kallickal { 36806733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 36816733b39aSJayamohan Kallickal struct scsi_cmnd *sc = task->sc; 36826733b39aSJayamohan Kallickal struct scatterlist *sg; 36836733b39aSJayamohan Kallickal int num_sg; 36846733b39aSJayamohan Kallickal unsigned int writedir = 0, xferlen = 0; 36856733b39aSJayamohan Kallickal 36866733b39aSJayamohan Kallickal if (!sc) 36876733b39aSJayamohan Kallickal return beiscsi_mtask(task); 36886733b39aSJayamohan Kallickal 36896733b39aSJayamohan Kallickal io_task->scsi_cmnd = sc; 36906733b39aSJayamohan Kallickal num_sg = scsi_dma_map(sc); 36916733b39aSJayamohan Kallickal if (num_sg < 0) { 36926733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, " scsi_dma_map Failed\n") 36936733b39aSJayamohan Kallickal return num_sg; 36946733b39aSJayamohan Kallickal } 36956733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_4, "xferlen=0x%08x scmd=%p num_sg=%d sernum=%lu\n", 36966733b39aSJayamohan Kallickal (scsi_bufflen(sc)), sc, num_sg, sc->serial_number); 36976733b39aSJayamohan Kallickal xferlen = scsi_bufflen(sc); 36986733b39aSJayamohan Kallickal sg = scsi_sglist(sc); 36996733b39aSJayamohan Kallickal if (sc->sc_data_direction == DMA_TO_DEVICE) { 37006733b39aSJayamohan Kallickal writedir = 1; 37016733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_4, "task->imm_count=0x%08x\n", 37026733b39aSJayamohan Kallickal task->imm_count); 37036733b39aSJayamohan Kallickal } else 37046733b39aSJayamohan Kallickal writedir = 0; 37056733b39aSJayamohan Kallickal return beiscsi_iotask(task, sg, num_sg, xferlen, writedir); 37066733b39aSJayamohan Kallickal } 37076733b39aSJayamohan Kallickal 37086733b39aSJayamohan Kallickal static void beiscsi_remove(struct pci_dev *pcidev) 37096733b39aSJayamohan Kallickal { 37106733b39aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 3711bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 3712bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 3713bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 3714bfead3b2SJayamohan Kallickal unsigned int i, msix_vec; 37156733b39aSJayamohan Kallickal 37166733b39aSJayamohan Kallickal phba = (struct beiscsi_hba *)pci_get_drvdata(pcidev); 37176733b39aSJayamohan Kallickal if (!phba) { 37186733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_remove called with no phba\n"); 37196733b39aSJayamohan Kallickal return; 37206733b39aSJayamohan Kallickal } 37216733b39aSJayamohan Kallickal 3722bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 3723bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 37246733b39aSJayamohan Kallickal hwi_disable_intr(phba); 3725bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 3726bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) { 3727bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 3728bfead3b2SJayamohan Kallickal free_irq(msix_vec, &phwi_context->be_eq[i]); 3729bfead3b2SJayamohan Kallickal } 3730bfead3b2SJayamohan Kallickal } else 37316733b39aSJayamohan Kallickal if (phba->pcidev->irq) 37326733b39aSJayamohan Kallickal free_irq(phba->pcidev->irq, phba); 3733bfead3b2SJayamohan Kallickal pci_disable_msix(phba->pcidev); 37346733b39aSJayamohan Kallickal destroy_workqueue(phba->wq); 37356733b39aSJayamohan Kallickal if (blk_iopoll_enabled) 3736bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 3737bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 3738bfead3b2SJayamohan Kallickal blk_iopoll_disable(&pbe_eq->iopoll); 3739bfead3b2SJayamohan Kallickal } 37406733b39aSJayamohan Kallickal 37416733b39aSJayamohan Kallickal beiscsi_clean_port(phba); 37426733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 37436733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 37446733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 37456733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.size, 37466733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.va, 37476733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.dma); 37486733b39aSJayamohan Kallickal iscsi_host_remove(phba->shost); 37496733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 37506733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 37516733b39aSJayamohan Kallickal } 37526733b39aSJayamohan Kallickal 3753bfead3b2SJayamohan Kallickal static void beiscsi_msix_enable(struct beiscsi_hba *phba) 3754bfead3b2SJayamohan Kallickal { 3755bfead3b2SJayamohan Kallickal int i, status; 3756bfead3b2SJayamohan Kallickal 3757bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) 3758bfead3b2SJayamohan Kallickal phba->msix_entries[i].entry = i; 3759bfead3b2SJayamohan Kallickal 3760bfead3b2SJayamohan Kallickal status = pci_enable_msix(phba->pcidev, phba->msix_entries, 3761bfead3b2SJayamohan Kallickal (phba->num_cpus + 1)); 3762bfead3b2SJayamohan Kallickal if (!status) 3763bfead3b2SJayamohan Kallickal phba->msix_enabled = true; 3764bfead3b2SJayamohan Kallickal 3765bfead3b2SJayamohan Kallickal return; 3766bfead3b2SJayamohan Kallickal } 3767bfead3b2SJayamohan Kallickal 37686733b39aSJayamohan Kallickal static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev, 37696733b39aSJayamohan Kallickal const struct pci_device_id *id) 37706733b39aSJayamohan Kallickal { 37716733b39aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 3772bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 3773bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 3774bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 3775238f6b72SJayamohan Kallickal int ret, num_cpus, i; 37766733b39aSJayamohan Kallickal 37776733b39aSJayamohan Kallickal ret = beiscsi_enable_pci(pcidev); 37786733b39aSJayamohan Kallickal if (ret < 0) { 377982284c09SDan Carpenter dev_err(&pcidev->dev, "beiscsi_dev_probe-" 37806733b39aSJayamohan Kallickal " Failed to enable pci device\n"); 37816733b39aSJayamohan Kallickal return ret; 37826733b39aSJayamohan Kallickal } 37836733b39aSJayamohan Kallickal 37846733b39aSJayamohan Kallickal phba = beiscsi_hba_alloc(pcidev); 37856733b39aSJayamohan Kallickal if (!phba) { 37866733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_dev_probe-" 37876733b39aSJayamohan Kallickal " Failed in beiscsi_hba_alloc\n"); 37886733b39aSJayamohan Kallickal goto disable_pci; 37896733b39aSJayamohan Kallickal } 37906733b39aSJayamohan Kallickal 3791f98c96b0SJayamohan Kallickal switch (pcidev->device) { 3792f98c96b0SJayamohan Kallickal case BE_DEVICE_ID1: 3793f98c96b0SJayamohan Kallickal case OC_DEVICE_ID1: 3794f98c96b0SJayamohan Kallickal case OC_DEVICE_ID2: 3795f98c96b0SJayamohan Kallickal phba->generation = BE_GEN2; 3796f98c96b0SJayamohan Kallickal break; 3797f98c96b0SJayamohan Kallickal case BE_DEVICE_ID2: 3798f98c96b0SJayamohan Kallickal case OC_DEVICE_ID3: 3799f98c96b0SJayamohan Kallickal phba->generation = BE_GEN3; 3800f98c96b0SJayamohan Kallickal break; 3801f98c96b0SJayamohan Kallickal default: 3802f98c96b0SJayamohan Kallickal phba->generation = 0; 3803f98c96b0SJayamohan Kallickal } 3804f98c96b0SJayamohan Kallickal 3805bfead3b2SJayamohan Kallickal if (enable_msix) 3806bfead3b2SJayamohan Kallickal num_cpus = find_num_cpus(); 3807bfead3b2SJayamohan Kallickal else 3808bfead3b2SJayamohan Kallickal num_cpus = 1; 3809bfead3b2SJayamohan Kallickal phba->num_cpus = num_cpus; 3810bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "num_cpus = %d\n", phba->num_cpus); 3811bfead3b2SJayamohan Kallickal 3812bfead3b2SJayamohan Kallickal if (enable_msix) 3813bfead3b2SJayamohan Kallickal beiscsi_msix_enable(phba); 38146733b39aSJayamohan Kallickal ret = be_ctrl_init(phba, pcidev); 38156733b39aSJayamohan Kallickal if (ret) { 38166733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 38176733b39aSJayamohan Kallickal "Failed in be_ctrl_init\n"); 38186733b39aSJayamohan Kallickal goto hba_free; 38196733b39aSJayamohan Kallickal } 38206733b39aSJayamohan Kallickal 38216733b39aSJayamohan Kallickal spin_lock_init(&phba->io_sgl_lock); 38226733b39aSJayamohan Kallickal spin_lock_init(&phba->mgmt_sgl_lock); 38236733b39aSJayamohan Kallickal spin_lock_init(&phba->isr_lock); 38247da50879SJayamohan Kallickal ret = mgmt_get_fw_config(&phba->ctrl, phba); 38257da50879SJayamohan Kallickal if (ret != 0) { 38267da50879SJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 38277da50879SJayamohan Kallickal "Error getting fw config\n"); 38287da50879SJayamohan Kallickal goto free_port; 38297da50879SJayamohan Kallickal } 38307da50879SJayamohan Kallickal phba->shost->max_id = phba->fw_config.iscsi_cid_count; 38316733b39aSJayamohan Kallickal beiscsi_get_params(phba); 3832aa874f07SJayamohan Kallickal phba->shost->can_queue = phba->params.ios_per_ctrl; 38336733b39aSJayamohan Kallickal ret = beiscsi_init_port(phba); 38346733b39aSJayamohan Kallickal if (ret < 0) { 38356733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 38366733b39aSJayamohan Kallickal "Failed in beiscsi_init_port\n"); 38376733b39aSJayamohan Kallickal goto free_port; 38386733b39aSJayamohan Kallickal } 38396733b39aSJayamohan Kallickal 3840756d29c8SJayamohan Kallickal for (i = 0; i < MAX_MCC_CMD ; i++) { 3841756d29c8SJayamohan Kallickal init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]); 3842756d29c8SJayamohan Kallickal phba->ctrl.mcc_tag[i] = i + 1; 3843756d29c8SJayamohan Kallickal phba->ctrl.mcc_numtag[i + 1] = 0; 3844756d29c8SJayamohan Kallickal phba->ctrl.mcc_tag_available++; 3845756d29c8SJayamohan Kallickal } 3846756d29c8SJayamohan Kallickal 3847756d29c8SJayamohan Kallickal phba->ctrl.mcc_alloc_index = phba->ctrl.mcc_free_index = 0; 3848756d29c8SJayamohan Kallickal 38496733b39aSJayamohan Kallickal snprintf(phba->wq_name, sizeof(phba->wq_name), "beiscsi_q_irq%u", 38506733b39aSJayamohan Kallickal phba->shost->host_no); 3851bfead3b2SJayamohan Kallickal phba->wq = create_workqueue(phba->wq_name); 38526733b39aSJayamohan Kallickal if (!phba->wq) { 38536733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 38546733b39aSJayamohan Kallickal "Failed to allocate work queue\n"); 38556733b39aSJayamohan Kallickal goto free_twq; 38566733b39aSJayamohan Kallickal } 38576733b39aSJayamohan Kallickal 38586733b39aSJayamohan Kallickal INIT_WORK(&phba->work_cqs, beiscsi_process_all_cqs); 38596733b39aSJayamohan Kallickal 3860bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 3861bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 38626733b39aSJayamohan Kallickal if (blk_iopoll_enabled) { 3863bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 3864bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 3865bfead3b2SJayamohan Kallickal blk_iopoll_init(&pbe_eq->iopoll, be_iopoll_budget, 3866bfead3b2SJayamohan Kallickal be_iopoll); 3867bfead3b2SJayamohan Kallickal blk_iopoll_enable(&pbe_eq->iopoll); 38686733b39aSJayamohan Kallickal } 3869bfead3b2SJayamohan Kallickal } 38706733b39aSJayamohan Kallickal ret = beiscsi_init_irqs(phba); 38716733b39aSJayamohan Kallickal if (ret < 0) { 38726733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 38736733b39aSJayamohan Kallickal "Failed to beiscsi_init_irqs\n"); 38746733b39aSJayamohan Kallickal goto free_blkenbld; 38756733b39aSJayamohan Kallickal } 3876238f6b72SJayamohan Kallickal hwi_enable_intr(phba); 38776733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "\n\n\n SUCCESS - DRIVER LOADED\n\n\n"); 38786733b39aSJayamohan Kallickal return 0; 38796733b39aSJayamohan Kallickal 38806733b39aSJayamohan Kallickal free_blkenbld: 38816733b39aSJayamohan Kallickal destroy_workqueue(phba->wq); 38826733b39aSJayamohan Kallickal if (blk_iopoll_enabled) 3883bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 3884bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 3885bfead3b2SJayamohan Kallickal blk_iopoll_disable(&pbe_eq->iopoll); 3886bfead3b2SJayamohan Kallickal } 38876733b39aSJayamohan Kallickal free_twq: 38886733b39aSJayamohan Kallickal beiscsi_clean_port(phba); 38896733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 38906733b39aSJayamohan Kallickal free_port: 38916733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 38926733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.size, 38936733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.va, 38946733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.dma); 38956733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 38966733b39aSJayamohan Kallickal hba_free: 3897238f6b72SJayamohan Kallickal if (phba->msix_enabled) 3898238f6b72SJayamohan Kallickal pci_disable_msix(phba->pcidev); 38996733b39aSJayamohan Kallickal iscsi_host_remove(phba->shost); 39006733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 39016733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 39026733b39aSJayamohan Kallickal disable_pci: 39036733b39aSJayamohan Kallickal pci_disable_device(pcidev); 39046733b39aSJayamohan Kallickal return ret; 39056733b39aSJayamohan Kallickal } 39066733b39aSJayamohan Kallickal 39076733b39aSJayamohan Kallickal struct iscsi_transport beiscsi_iscsi_transport = { 39086733b39aSJayamohan Kallickal .owner = THIS_MODULE, 39096733b39aSJayamohan Kallickal .name = DRV_NAME, 39109db0fb3aSJayamohan Kallickal .caps = CAP_RECOVERY_L0 | CAP_HDRDGST | CAP_TEXT_NEGO | 39116733b39aSJayamohan Kallickal CAP_MULTI_R2T | CAP_DATADGST | CAP_DATA_PATH_OFFLOAD, 39126733b39aSJayamohan Kallickal .param_mask = ISCSI_MAX_RECV_DLENGTH | 39136733b39aSJayamohan Kallickal ISCSI_MAX_XMIT_DLENGTH | 39146733b39aSJayamohan Kallickal ISCSI_HDRDGST_EN | 39156733b39aSJayamohan Kallickal ISCSI_DATADGST_EN | 39166733b39aSJayamohan Kallickal ISCSI_INITIAL_R2T_EN | 39176733b39aSJayamohan Kallickal ISCSI_MAX_R2T | 39186733b39aSJayamohan Kallickal ISCSI_IMM_DATA_EN | 39196733b39aSJayamohan Kallickal ISCSI_FIRST_BURST | 39206733b39aSJayamohan Kallickal ISCSI_MAX_BURST | 39216733b39aSJayamohan Kallickal ISCSI_PDU_INORDER_EN | 39226733b39aSJayamohan Kallickal ISCSI_DATASEQ_INORDER_EN | 39236733b39aSJayamohan Kallickal ISCSI_ERL | 39246733b39aSJayamohan Kallickal ISCSI_CONN_PORT | 39256733b39aSJayamohan Kallickal ISCSI_CONN_ADDRESS | 39266733b39aSJayamohan Kallickal ISCSI_EXP_STATSN | 39276733b39aSJayamohan Kallickal ISCSI_PERSISTENT_PORT | 39286733b39aSJayamohan Kallickal ISCSI_PERSISTENT_ADDRESS | 39296733b39aSJayamohan Kallickal ISCSI_TARGET_NAME | ISCSI_TPGT | 39306733b39aSJayamohan Kallickal ISCSI_USERNAME | ISCSI_PASSWORD | 39316733b39aSJayamohan Kallickal ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN | 39326733b39aSJayamohan Kallickal ISCSI_FAST_ABORT | ISCSI_ABORT_TMO | 39337da50879SJayamohan Kallickal ISCSI_LU_RESET_TMO | 39346733b39aSJayamohan Kallickal ISCSI_PING_TMO | ISCSI_RECV_TMO | 39356733b39aSJayamohan Kallickal ISCSI_IFACE_NAME | ISCSI_INITIATOR_NAME, 39366733b39aSJayamohan Kallickal .host_param_mask = ISCSI_HOST_HWADDRESS | ISCSI_HOST_IPADDRESS | 39376733b39aSJayamohan Kallickal ISCSI_HOST_INITIATOR_NAME, 39386733b39aSJayamohan Kallickal .create_session = beiscsi_session_create, 39396733b39aSJayamohan Kallickal .destroy_session = beiscsi_session_destroy, 39406733b39aSJayamohan Kallickal .create_conn = beiscsi_conn_create, 39416733b39aSJayamohan Kallickal .bind_conn = beiscsi_conn_bind, 39426733b39aSJayamohan Kallickal .destroy_conn = iscsi_conn_teardown, 39436733b39aSJayamohan Kallickal .set_param = beiscsi_set_param, 39446733b39aSJayamohan Kallickal .get_conn_param = beiscsi_conn_get_param, 39456733b39aSJayamohan Kallickal .get_session_param = iscsi_session_get_param, 39466733b39aSJayamohan Kallickal .get_host_param = beiscsi_get_host_param, 39476733b39aSJayamohan Kallickal .start_conn = beiscsi_conn_start, 3948fa95d206SMike Christie .stop_conn = iscsi_conn_stop, 39496733b39aSJayamohan Kallickal .send_pdu = iscsi_conn_send_pdu, 39506733b39aSJayamohan Kallickal .xmit_task = beiscsi_task_xmit, 39516733b39aSJayamohan Kallickal .cleanup_task = beiscsi_cleanup_task, 39526733b39aSJayamohan Kallickal .alloc_pdu = beiscsi_alloc_pdu, 39536733b39aSJayamohan Kallickal .parse_pdu_itt = beiscsi_parse_pdu, 39546733b39aSJayamohan Kallickal .get_stats = beiscsi_conn_get_stats, 39556733b39aSJayamohan Kallickal .ep_connect = beiscsi_ep_connect, 39566733b39aSJayamohan Kallickal .ep_poll = beiscsi_ep_poll, 39576733b39aSJayamohan Kallickal .ep_disconnect = beiscsi_ep_disconnect, 39586733b39aSJayamohan Kallickal .session_recovery_timedout = iscsi_session_recovery_timedout, 39596733b39aSJayamohan Kallickal }; 39606733b39aSJayamohan Kallickal 39616733b39aSJayamohan Kallickal static struct pci_driver beiscsi_pci_driver = { 39626733b39aSJayamohan Kallickal .name = DRV_NAME, 39636733b39aSJayamohan Kallickal .probe = beiscsi_dev_probe, 39646733b39aSJayamohan Kallickal .remove = beiscsi_remove, 39656733b39aSJayamohan Kallickal .id_table = beiscsi_pci_id_table 39666733b39aSJayamohan Kallickal }; 39676733b39aSJayamohan Kallickal 3968bfead3b2SJayamohan Kallickal 39696733b39aSJayamohan Kallickal static int __init beiscsi_module_init(void) 39706733b39aSJayamohan Kallickal { 39716733b39aSJayamohan Kallickal int ret; 39726733b39aSJayamohan Kallickal 39736733b39aSJayamohan Kallickal beiscsi_scsi_transport = 39746733b39aSJayamohan Kallickal iscsi_register_transport(&beiscsi_iscsi_transport); 39756733b39aSJayamohan Kallickal if (!beiscsi_scsi_transport) { 39766733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 39776733b39aSJayamohan Kallickal "beiscsi_module_init - Unable to register beiscsi" 39786733b39aSJayamohan Kallickal "transport.\n"); 3979f55a24f2SJayamohan Kallickal return -ENOMEM; 39806733b39aSJayamohan Kallickal } 39816733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "In beiscsi_module_init, tt=%p\n", 39826733b39aSJayamohan Kallickal &beiscsi_iscsi_transport); 39836733b39aSJayamohan Kallickal 39846733b39aSJayamohan Kallickal ret = pci_register_driver(&beiscsi_pci_driver); 39856733b39aSJayamohan Kallickal if (ret) { 39866733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 39876733b39aSJayamohan Kallickal "beiscsi_module_init - Unable to register" 39886733b39aSJayamohan Kallickal "beiscsi pci driver.\n"); 39896733b39aSJayamohan Kallickal goto unregister_iscsi_transport; 39906733b39aSJayamohan Kallickal } 39916733b39aSJayamohan Kallickal return 0; 39926733b39aSJayamohan Kallickal 39936733b39aSJayamohan Kallickal unregister_iscsi_transport: 39946733b39aSJayamohan Kallickal iscsi_unregister_transport(&beiscsi_iscsi_transport); 39956733b39aSJayamohan Kallickal return ret; 39966733b39aSJayamohan Kallickal } 39976733b39aSJayamohan Kallickal 39986733b39aSJayamohan Kallickal static void __exit beiscsi_module_exit(void) 39996733b39aSJayamohan Kallickal { 40006733b39aSJayamohan Kallickal pci_unregister_driver(&beiscsi_pci_driver); 40016733b39aSJayamohan Kallickal iscsi_unregister_transport(&beiscsi_iscsi_transport); 40026733b39aSJayamohan Kallickal } 40036733b39aSJayamohan Kallickal 40046733b39aSJayamohan Kallickal module_init(beiscsi_module_init); 40056733b39aSJayamohan Kallickal module_exit(beiscsi_module_exit); 4006