16733b39aSJayamohan Kallickal /** 26733b39aSJayamohan Kallickal * Copyright (C) 2005 - 2009 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> 226733b39aSJayamohan Kallickal #include <linux/interrupt.h> 236733b39aSJayamohan Kallickal #include <linux/blkdev.h> 246733b39aSJayamohan Kallickal #include <linux/pci.h> 256733b39aSJayamohan Kallickal #include <linux/string.h> 266733b39aSJayamohan Kallickal #include <linux/kernel.h> 276733b39aSJayamohan Kallickal #include <linux/semaphore.h> 286733b39aSJayamohan Kallickal 296733b39aSJayamohan Kallickal #include <scsi/libiscsi.h> 306733b39aSJayamohan Kallickal #include <scsi/scsi_transport_iscsi.h> 316733b39aSJayamohan Kallickal #include <scsi/scsi_transport.h> 326733b39aSJayamohan Kallickal #include <scsi/scsi_cmnd.h> 336733b39aSJayamohan Kallickal #include <scsi/scsi_device.h> 346733b39aSJayamohan Kallickal #include <scsi/scsi_host.h> 356733b39aSJayamohan Kallickal #include <scsi/scsi.h> 366733b39aSJayamohan Kallickal #include "be_main.h" 376733b39aSJayamohan Kallickal #include "be_iscsi.h" 386733b39aSJayamohan Kallickal #include "be_mgmt.h" 396733b39aSJayamohan Kallickal 406733b39aSJayamohan Kallickal static unsigned int be_iopoll_budget = 10; 416733b39aSJayamohan Kallickal static unsigned int be_max_phys_size = 64; 42bfead3b2SJayamohan Kallickal static unsigned int enable_msix = 1; 4335e66019SJayamohan Kallickal static unsigned int ring_mode; 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 62bfead3b2SJayamohan Kallickal /*------------------- PCI Driver operations and data ----------------- */ 63bfead3b2SJayamohan Kallickal static DEFINE_PCI_DEVICE_TABLE(beiscsi_pci_id_table) = { 64bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) }, 65bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) }, 66bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) }, 67bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) }, 68bfead3b2SJayamohan Kallickal { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID4) }, 69bfead3b2SJayamohan Kallickal { 0 } 70bfead3b2SJayamohan Kallickal }; 71bfead3b2SJayamohan Kallickal MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table); 72bfead3b2SJayamohan Kallickal 736733b39aSJayamohan Kallickal static struct scsi_host_template beiscsi_sht = { 746733b39aSJayamohan Kallickal .module = THIS_MODULE, 756733b39aSJayamohan Kallickal .name = "ServerEngines 10Gbe open-iscsi Initiator Driver", 766733b39aSJayamohan Kallickal .proc_name = DRV_NAME, 776733b39aSJayamohan Kallickal .queuecommand = iscsi_queuecommand, 786733b39aSJayamohan Kallickal .eh_abort_handler = iscsi_eh_abort, 796733b39aSJayamohan Kallickal .change_queue_depth = iscsi_change_queue_depth, 806733b39aSJayamohan Kallickal .slave_configure = beiscsi_slave_configure, 816733b39aSJayamohan Kallickal .target_alloc = iscsi_target_alloc, 826733b39aSJayamohan Kallickal .eh_device_reset_handler = iscsi_eh_device_reset, 836733b39aSJayamohan Kallickal .eh_target_reset_handler = iscsi_eh_target_reset, 846733b39aSJayamohan Kallickal .sg_tablesize = BEISCSI_SGLIST_ELEMENTS, 856733b39aSJayamohan Kallickal .can_queue = BE2_IO_DEPTH, 866733b39aSJayamohan Kallickal .this_id = -1, 876733b39aSJayamohan Kallickal .max_sectors = BEISCSI_MAX_SECTORS, 886733b39aSJayamohan Kallickal .cmd_per_lun = BEISCSI_CMD_PER_LUN, 896733b39aSJayamohan Kallickal .use_clustering = ENABLE_CLUSTERING, 906733b39aSJayamohan Kallickal }; 916733b39aSJayamohan Kallickal 92bfead3b2SJayamohan Kallickal static struct scsi_transport_template *beiscsi_scsi_transport; 936733b39aSJayamohan Kallickal 946733b39aSJayamohan Kallickal static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev) 956733b39aSJayamohan Kallickal { 966733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 976733b39aSJayamohan Kallickal struct Scsi_Host *shost; 986733b39aSJayamohan Kallickal 996733b39aSJayamohan Kallickal shost = iscsi_host_alloc(&beiscsi_sht, sizeof(*phba), 0); 1006733b39aSJayamohan Kallickal if (!shost) { 1016733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_hba_alloc -" 1026733b39aSJayamohan Kallickal "iscsi_host_alloc failed \n"); 1036733b39aSJayamohan Kallickal return NULL; 1046733b39aSJayamohan Kallickal } 1056733b39aSJayamohan Kallickal shost->dma_boundary = pcidev->dma_mask; 1066733b39aSJayamohan Kallickal shost->max_id = BE2_MAX_SESSIONS; 1076733b39aSJayamohan Kallickal shost->max_channel = 0; 1086733b39aSJayamohan Kallickal shost->max_cmd_len = BEISCSI_MAX_CMD_LEN; 1096733b39aSJayamohan Kallickal shost->max_lun = BEISCSI_NUM_MAX_LUN; 1106733b39aSJayamohan Kallickal shost->transportt = beiscsi_scsi_transport; 1116733b39aSJayamohan Kallickal phba = iscsi_host_priv(shost); 1126733b39aSJayamohan Kallickal memset(phba, 0, sizeof(*phba)); 1136733b39aSJayamohan Kallickal phba->shost = shost; 1146733b39aSJayamohan Kallickal phba->pcidev = pci_dev_get(pcidev); 1152807afb7SJayamohan Kallickal pci_set_drvdata(pcidev, phba); 1166733b39aSJayamohan Kallickal 1176733b39aSJayamohan Kallickal if (iscsi_host_add(shost, &phba->pcidev->dev)) 1186733b39aSJayamohan Kallickal goto free_devices; 1196733b39aSJayamohan Kallickal return phba; 1206733b39aSJayamohan Kallickal 1216733b39aSJayamohan Kallickal free_devices: 1226733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 1236733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 1246733b39aSJayamohan Kallickal return NULL; 1256733b39aSJayamohan Kallickal } 1266733b39aSJayamohan Kallickal 1276733b39aSJayamohan Kallickal static void beiscsi_unmap_pci_function(struct beiscsi_hba *phba) 1286733b39aSJayamohan Kallickal { 1296733b39aSJayamohan Kallickal if (phba->csr_va) { 1306733b39aSJayamohan Kallickal iounmap(phba->csr_va); 1316733b39aSJayamohan Kallickal phba->csr_va = NULL; 1326733b39aSJayamohan Kallickal } 1336733b39aSJayamohan Kallickal if (phba->db_va) { 1346733b39aSJayamohan Kallickal iounmap(phba->db_va); 1356733b39aSJayamohan Kallickal phba->db_va = NULL; 1366733b39aSJayamohan Kallickal } 1376733b39aSJayamohan Kallickal if (phba->pci_va) { 1386733b39aSJayamohan Kallickal iounmap(phba->pci_va); 1396733b39aSJayamohan Kallickal phba->pci_va = NULL; 1406733b39aSJayamohan Kallickal } 1416733b39aSJayamohan Kallickal } 1426733b39aSJayamohan Kallickal 1436733b39aSJayamohan Kallickal static int beiscsi_map_pci_bars(struct beiscsi_hba *phba, 1446733b39aSJayamohan Kallickal struct pci_dev *pcidev) 1456733b39aSJayamohan Kallickal { 1466733b39aSJayamohan Kallickal u8 __iomem *addr; 1476733b39aSJayamohan Kallickal 1486733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 2), 1496733b39aSJayamohan Kallickal pci_resource_len(pcidev, 2)); 1506733b39aSJayamohan Kallickal if (addr == NULL) 1516733b39aSJayamohan Kallickal return -ENOMEM; 1526733b39aSJayamohan Kallickal phba->ctrl.csr = addr; 1536733b39aSJayamohan Kallickal phba->csr_va = addr; 1546733b39aSJayamohan Kallickal phba->csr_pa.u.a64.address = pci_resource_start(pcidev, 2); 1556733b39aSJayamohan Kallickal 1566733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 4), 128 * 1024); 1576733b39aSJayamohan Kallickal if (addr == NULL) 1586733b39aSJayamohan Kallickal goto pci_map_err; 1596733b39aSJayamohan Kallickal phba->ctrl.db = addr; 1606733b39aSJayamohan Kallickal phba->db_va = addr; 1616733b39aSJayamohan Kallickal phba->db_pa.u.a64.address = pci_resource_start(pcidev, 4); 1626733b39aSJayamohan Kallickal 1636733b39aSJayamohan Kallickal addr = ioremap_nocache(pci_resource_start(pcidev, 1), 1646733b39aSJayamohan Kallickal pci_resource_len(pcidev, 1)); 1656733b39aSJayamohan Kallickal if (addr == NULL) 1666733b39aSJayamohan Kallickal goto pci_map_err; 1676733b39aSJayamohan Kallickal phba->ctrl.pcicfg = addr; 1686733b39aSJayamohan Kallickal phba->pci_va = addr; 1696733b39aSJayamohan Kallickal phba->pci_pa.u.a64.address = pci_resource_start(pcidev, 1); 1706733b39aSJayamohan Kallickal return 0; 1716733b39aSJayamohan Kallickal 1726733b39aSJayamohan Kallickal pci_map_err: 1736733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 1746733b39aSJayamohan Kallickal return -ENOMEM; 1756733b39aSJayamohan Kallickal } 1766733b39aSJayamohan Kallickal 1776733b39aSJayamohan Kallickal static int beiscsi_enable_pci(struct pci_dev *pcidev) 1786733b39aSJayamohan Kallickal { 1796733b39aSJayamohan Kallickal int ret; 1806733b39aSJayamohan Kallickal 1816733b39aSJayamohan Kallickal ret = pci_enable_device(pcidev); 1826733b39aSJayamohan Kallickal if (ret) { 1836733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_enable_pci - enable device " 1846733b39aSJayamohan Kallickal "failed. Returning -ENODEV\n"); 1856733b39aSJayamohan Kallickal return ret; 1866733b39aSJayamohan Kallickal } 1876733b39aSJayamohan Kallickal 188bfead3b2SJayamohan Kallickal pci_set_master(pcidev); 1896733b39aSJayamohan Kallickal if (pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64))) { 1906733b39aSJayamohan Kallickal ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32)); 1916733b39aSJayamohan Kallickal if (ret) { 1926733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n"); 1936733b39aSJayamohan Kallickal pci_disable_device(pcidev); 1946733b39aSJayamohan Kallickal return ret; 1956733b39aSJayamohan Kallickal } 1966733b39aSJayamohan Kallickal } 1976733b39aSJayamohan Kallickal return 0; 1986733b39aSJayamohan Kallickal } 1996733b39aSJayamohan Kallickal 2006733b39aSJayamohan Kallickal static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev) 2016733b39aSJayamohan Kallickal { 2026733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 2036733b39aSJayamohan Kallickal struct be_dma_mem *mbox_mem_alloc = &ctrl->mbox_mem_alloced; 2046733b39aSJayamohan Kallickal struct be_dma_mem *mbox_mem_align = &ctrl->mbox_mem; 2056733b39aSJayamohan Kallickal int status = 0; 2066733b39aSJayamohan Kallickal 2076733b39aSJayamohan Kallickal ctrl->pdev = pdev; 2086733b39aSJayamohan Kallickal status = beiscsi_map_pci_bars(phba, pdev); 2096733b39aSJayamohan Kallickal if (status) 2106733b39aSJayamohan Kallickal return status; 2116733b39aSJayamohan Kallickal mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16; 2126733b39aSJayamohan Kallickal mbox_mem_alloc->va = pci_alloc_consistent(pdev, 2136733b39aSJayamohan Kallickal mbox_mem_alloc->size, 2146733b39aSJayamohan Kallickal &mbox_mem_alloc->dma); 2156733b39aSJayamohan Kallickal if (!mbox_mem_alloc->va) { 2166733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 2176733b39aSJayamohan Kallickal status = -ENOMEM; 2186733b39aSJayamohan Kallickal return status; 2196733b39aSJayamohan Kallickal } 2206733b39aSJayamohan Kallickal 2216733b39aSJayamohan Kallickal mbox_mem_align->size = sizeof(struct be_mcc_mailbox); 2226733b39aSJayamohan Kallickal mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16); 2236733b39aSJayamohan Kallickal mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16); 2246733b39aSJayamohan Kallickal memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox)); 2256733b39aSJayamohan Kallickal spin_lock_init(&ctrl->mbox_lock); 226bfead3b2SJayamohan Kallickal spin_lock_init(&phba->ctrl.mcc_lock); 227bfead3b2SJayamohan Kallickal spin_lock_init(&phba->ctrl.mcc_cq_lock); 228bfead3b2SJayamohan Kallickal 2296733b39aSJayamohan Kallickal return status; 2306733b39aSJayamohan Kallickal } 2316733b39aSJayamohan Kallickal 2326733b39aSJayamohan Kallickal static void beiscsi_get_params(struct beiscsi_hba *phba) 2336733b39aSJayamohan Kallickal { 2347da50879SJayamohan Kallickal phba->params.ios_per_ctrl = (phba->fw_config.iscsi_icd_count 2357da50879SJayamohan Kallickal - (phba->fw_config.iscsi_cid_count 2367da50879SJayamohan Kallickal + BE2_TMFS 2377da50879SJayamohan Kallickal + BE2_NOPOUT_REQ)); 2387da50879SJayamohan Kallickal phba->params.cxns_per_ctrl = phba->fw_config.iscsi_cid_count; 2397da50879SJayamohan Kallickal phba->params.asyncpdus_per_ctrl = phba->fw_config.iscsi_cid_count;; 2407da50879SJayamohan Kallickal phba->params.icds_per_ctrl = phba->fw_config.iscsi_icd_count;; 2416733b39aSJayamohan Kallickal phba->params.num_sge_per_io = BE2_SGE; 2426733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz = BE2_DEFPDU_HDR_SZ; 2436733b39aSJayamohan Kallickal phba->params.defpdu_data_sz = BE2_DEFPDU_DATA_SZ; 2446733b39aSJayamohan Kallickal phba->params.eq_timer = 64; 2456733b39aSJayamohan Kallickal phba->params.num_eq_entries = 2467da50879SJayamohan Kallickal (((BE2_CMDS_PER_CXN * 2 + phba->fw_config.iscsi_cid_count * 2 2477da50879SJayamohan Kallickal + BE2_TMFS) / 512) + 1) * 512; 2486733b39aSJayamohan Kallickal phba->params.num_eq_entries = (phba->params.num_eq_entries < 1024) 2496733b39aSJayamohan Kallickal ? 1024 : phba->params.num_eq_entries; 2506733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "phba->params.num_eq_entries=%d \n", 2516733b39aSJayamohan Kallickal phba->params.num_eq_entries); 2526733b39aSJayamohan Kallickal phba->params.num_cq_entries = 2537da50879SJayamohan Kallickal (((BE2_CMDS_PER_CXN * 2 + phba->fw_config.iscsi_cid_count * 2 2547da50879SJayamohan Kallickal + BE2_TMFS) / 512) + 1) * 512; 2556733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn = 256; 2566733b39aSJayamohan Kallickal } 2576733b39aSJayamohan Kallickal 2586733b39aSJayamohan Kallickal static void hwi_ring_eq_db(struct beiscsi_hba *phba, 2596733b39aSJayamohan Kallickal unsigned int id, unsigned int clr_interrupt, 2606733b39aSJayamohan Kallickal unsigned int num_processed, 2616733b39aSJayamohan Kallickal unsigned char rearm, unsigned char event) 2626733b39aSJayamohan Kallickal { 2636733b39aSJayamohan Kallickal u32 val = 0; 2646733b39aSJayamohan Kallickal val |= id & DB_EQ_RING_ID_MASK; 2656733b39aSJayamohan Kallickal if (rearm) 2666733b39aSJayamohan Kallickal val |= 1 << DB_EQ_REARM_SHIFT; 2676733b39aSJayamohan Kallickal if (clr_interrupt) 2686733b39aSJayamohan Kallickal val |= 1 << DB_EQ_CLR_SHIFT; 2696733b39aSJayamohan Kallickal if (event) 2706733b39aSJayamohan Kallickal val |= 1 << DB_EQ_EVNT_SHIFT; 2716733b39aSJayamohan Kallickal val |= num_processed << DB_EQ_NUM_POPPED_SHIFT; 2726733b39aSJayamohan Kallickal iowrite32(val, phba->db_va + DB_EQ_OFFSET); 2736733b39aSJayamohan Kallickal } 2746733b39aSJayamohan Kallickal 2756733b39aSJayamohan Kallickal /** 276bfead3b2SJayamohan Kallickal * be_isr_mcc - The isr routine of the driver. 277bfead3b2SJayamohan Kallickal * @irq: Not used 278bfead3b2SJayamohan Kallickal * @dev_id: Pointer to host adapter structure 279bfead3b2SJayamohan Kallickal */ 280bfead3b2SJayamohan Kallickal static irqreturn_t be_isr_mcc(int irq, void *dev_id) 281bfead3b2SJayamohan Kallickal { 282bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 283bfead3b2SJayamohan Kallickal struct be_eq_entry *eqe = NULL; 284bfead3b2SJayamohan Kallickal struct be_queue_info *eq; 285bfead3b2SJayamohan Kallickal struct be_queue_info *mcc; 286bfead3b2SJayamohan Kallickal unsigned int num_eq_processed; 287bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 288bfead3b2SJayamohan Kallickal unsigned long flags; 289bfead3b2SJayamohan Kallickal 290bfead3b2SJayamohan Kallickal pbe_eq = dev_id; 291bfead3b2SJayamohan Kallickal eq = &pbe_eq->q; 292bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 293bfead3b2SJayamohan Kallickal mcc = &phba->ctrl.mcc_obj.cq; 294bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 295bfead3b2SJayamohan Kallickal if (!eqe) 296bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "eqe is NULL\n"); 297bfead3b2SJayamohan Kallickal 298bfead3b2SJayamohan Kallickal num_eq_processed = 0; 299bfead3b2SJayamohan Kallickal 300bfead3b2SJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 301bfead3b2SJayamohan Kallickal & EQE_VALID_MASK) { 302bfead3b2SJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 303bfead3b2SJayamohan Kallickal resource_id) / 32] & 304bfead3b2SJayamohan Kallickal EQE_RESID_MASK) >> 16) == mcc->id) { 305bfead3b2SJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 306bfead3b2SJayamohan Kallickal phba->todo_mcc_cq = 1; 307bfead3b2SJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 308bfead3b2SJayamohan Kallickal } 309bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 310bfead3b2SJayamohan Kallickal queue_tail_inc(eq); 311bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 312bfead3b2SJayamohan Kallickal num_eq_processed++; 313bfead3b2SJayamohan Kallickal } 314bfead3b2SJayamohan Kallickal if (phba->todo_mcc_cq) 315bfead3b2SJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 316bfead3b2SJayamohan Kallickal if (num_eq_processed) 317bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 1, 1); 318bfead3b2SJayamohan Kallickal 319bfead3b2SJayamohan Kallickal return IRQ_HANDLED; 320bfead3b2SJayamohan Kallickal } 321bfead3b2SJayamohan Kallickal 322bfead3b2SJayamohan Kallickal /** 323bfead3b2SJayamohan Kallickal * be_isr_msix - The isr routine of the driver. 324bfead3b2SJayamohan Kallickal * @irq: Not used 325bfead3b2SJayamohan Kallickal * @dev_id: Pointer to host adapter structure 326bfead3b2SJayamohan Kallickal */ 327bfead3b2SJayamohan Kallickal static irqreturn_t be_isr_msix(int irq, void *dev_id) 328bfead3b2SJayamohan Kallickal { 329bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 330bfead3b2SJayamohan Kallickal struct be_eq_entry *eqe = NULL; 331bfead3b2SJayamohan Kallickal struct be_queue_info *eq; 332bfead3b2SJayamohan Kallickal struct be_queue_info *cq; 333bfead3b2SJayamohan Kallickal unsigned int num_eq_processed; 334bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 335bfead3b2SJayamohan Kallickal unsigned long flags; 336bfead3b2SJayamohan Kallickal 337bfead3b2SJayamohan Kallickal pbe_eq = dev_id; 338bfead3b2SJayamohan Kallickal eq = &pbe_eq->q; 339bfead3b2SJayamohan Kallickal cq = pbe_eq->cq; 340bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 341bfead3b2SJayamohan Kallickal if (!eqe) 342bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "eqe is NULL\n"); 343bfead3b2SJayamohan Kallickal 344bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 345bfead3b2SJayamohan Kallickal num_eq_processed = 0; 346bfead3b2SJayamohan Kallickal if (blk_iopoll_enabled) { 347bfead3b2SJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 348bfead3b2SJayamohan Kallickal & EQE_VALID_MASK) { 349bfead3b2SJayamohan Kallickal if (!blk_iopoll_sched_prep(&pbe_eq->iopoll)) 350bfead3b2SJayamohan Kallickal blk_iopoll_sched(&pbe_eq->iopoll); 351bfead3b2SJayamohan Kallickal 352bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 353bfead3b2SJayamohan Kallickal queue_tail_inc(eq); 354bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 355bfead3b2SJayamohan Kallickal num_eq_processed++; 356bfead3b2SJayamohan Kallickal } 357bfead3b2SJayamohan Kallickal if (num_eq_processed) 358bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 0, 1); 359bfead3b2SJayamohan Kallickal 360bfead3b2SJayamohan Kallickal return IRQ_HANDLED; 361bfead3b2SJayamohan Kallickal } else { 362bfead3b2SJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 363bfead3b2SJayamohan Kallickal & EQE_VALID_MASK) { 364bfead3b2SJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 365bfead3b2SJayamohan Kallickal phba->todo_cq = 1; 366bfead3b2SJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 367bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 368bfead3b2SJayamohan Kallickal queue_tail_inc(eq); 369bfead3b2SJayamohan Kallickal eqe = queue_tail_node(eq); 370bfead3b2SJayamohan Kallickal num_eq_processed++; 371bfead3b2SJayamohan Kallickal } 372bfead3b2SJayamohan Kallickal if (phba->todo_cq) 373bfead3b2SJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 374bfead3b2SJayamohan Kallickal 375bfead3b2SJayamohan Kallickal if (num_eq_processed) 376bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 1, 1); 377bfead3b2SJayamohan Kallickal 378bfead3b2SJayamohan Kallickal return IRQ_HANDLED; 379bfead3b2SJayamohan Kallickal } 380bfead3b2SJayamohan Kallickal } 381bfead3b2SJayamohan Kallickal 382bfead3b2SJayamohan Kallickal /** 3836733b39aSJayamohan Kallickal * be_isr - The isr routine of the driver. 3846733b39aSJayamohan Kallickal * @irq: Not used 3856733b39aSJayamohan Kallickal * @dev_id: Pointer to host adapter structure 3866733b39aSJayamohan Kallickal */ 3876733b39aSJayamohan Kallickal static irqreturn_t be_isr(int irq, void *dev_id) 3886733b39aSJayamohan Kallickal { 3896733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 3906733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 3916733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 3926733b39aSJayamohan Kallickal struct be_eq_entry *eqe = NULL; 3936733b39aSJayamohan Kallickal struct be_queue_info *eq; 3946733b39aSJayamohan Kallickal struct be_queue_info *cq; 395bfead3b2SJayamohan Kallickal struct be_queue_info *mcc; 3966733b39aSJayamohan Kallickal unsigned long flags, index; 397bfead3b2SJayamohan Kallickal unsigned int num_mcceq_processed, num_ioeq_processed; 3986733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl; 399bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 4006733b39aSJayamohan Kallickal int isr; 4016733b39aSJayamohan Kallickal 4026733b39aSJayamohan Kallickal phba = dev_id; 4036733b39aSJayamohan Kallickal ctrl = &phba->ctrl;; 4046733b39aSJayamohan Kallickal isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET + 4056733b39aSJayamohan Kallickal (PCI_FUNC(ctrl->pdev->devfn) * CEV_ISR_SIZE)); 4066733b39aSJayamohan Kallickal if (!isr) 4076733b39aSJayamohan Kallickal return IRQ_NONE; 4086733b39aSJayamohan Kallickal 4096733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 4106733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 411bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[0]; 412bfead3b2SJayamohan Kallickal 413bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[0].q; 414bfead3b2SJayamohan Kallickal mcc = &phba->ctrl.mcc_obj.cq; 4156733b39aSJayamohan Kallickal index = 0; 4166733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 4176733b39aSJayamohan Kallickal if (!eqe) 4186733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "eqe is NULL\n"); 4196733b39aSJayamohan Kallickal 420bfead3b2SJayamohan Kallickal num_ioeq_processed = 0; 421bfead3b2SJayamohan Kallickal num_mcceq_processed = 0; 4226733b39aSJayamohan Kallickal if (blk_iopoll_enabled) { 4236733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 4246733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 425bfead3b2SJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 426bfead3b2SJayamohan Kallickal resource_id) / 32] & 427bfead3b2SJayamohan Kallickal EQE_RESID_MASK) >> 16) == mcc->id) { 428bfead3b2SJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 429bfead3b2SJayamohan Kallickal phba->todo_mcc_cq = 1; 430bfead3b2SJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 431bfead3b2SJayamohan Kallickal num_mcceq_processed++; 432bfead3b2SJayamohan Kallickal } else { 433bfead3b2SJayamohan Kallickal if (!blk_iopoll_sched_prep(&pbe_eq->iopoll)) 434bfead3b2SJayamohan Kallickal blk_iopoll_sched(&pbe_eq->iopoll); 435bfead3b2SJayamohan Kallickal num_ioeq_processed++; 436bfead3b2SJayamohan Kallickal } 4376733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 4386733b39aSJayamohan Kallickal queue_tail_inc(eq); 4396733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 4406733b39aSJayamohan Kallickal } 441bfead3b2SJayamohan Kallickal if (num_ioeq_processed || num_mcceq_processed) { 442bfead3b2SJayamohan Kallickal if (phba->todo_mcc_cq) 443bfead3b2SJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 444bfead3b2SJayamohan Kallickal 445bfead3b2SJayamohan Kallickal if ((num_mcceq_processed) && (!num_ioeq_processed)) 446bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 447bfead3b2SJayamohan Kallickal (num_ioeq_processed + 448bfead3b2SJayamohan Kallickal num_mcceq_processed) , 1, 1); 449bfead3b2SJayamohan Kallickal else 450bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 451bfead3b2SJayamohan Kallickal (num_ioeq_processed + 452bfead3b2SJayamohan Kallickal num_mcceq_processed), 0, 1); 453bfead3b2SJayamohan Kallickal 4546733b39aSJayamohan Kallickal return IRQ_HANDLED; 4556733b39aSJayamohan Kallickal } else 4566733b39aSJayamohan Kallickal return IRQ_NONE; 4576733b39aSJayamohan Kallickal } else { 458bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 4596733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 4606733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 4616733b39aSJayamohan Kallickal 4626733b39aSJayamohan Kallickal if (((eqe->dw[offsetof(struct amap_eq_entry, 4636733b39aSJayamohan Kallickal resource_id) / 32] & 4646733b39aSJayamohan Kallickal EQE_RESID_MASK) >> 16) != cq->id) { 4656733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 4666733b39aSJayamohan Kallickal phba->todo_mcc_cq = 1; 4676733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 4686733b39aSJayamohan Kallickal } else { 4696733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 4706733b39aSJayamohan Kallickal phba->todo_cq = 1; 4716733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 4726733b39aSJayamohan Kallickal } 4736733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 4746733b39aSJayamohan Kallickal queue_tail_inc(eq); 4756733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 476bfead3b2SJayamohan Kallickal num_ioeq_processed++; 4776733b39aSJayamohan Kallickal } 4786733b39aSJayamohan Kallickal if (phba->todo_cq || phba->todo_mcc_cq) 4796733b39aSJayamohan Kallickal queue_work(phba->wq, &phba->work_cqs); 4806733b39aSJayamohan Kallickal 481bfead3b2SJayamohan Kallickal if (num_ioeq_processed) { 482bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 483bfead3b2SJayamohan Kallickal num_ioeq_processed, 1, 1); 4846733b39aSJayamohan Kallickal return IRQ_HANDLED; 4856733b39aSJayamohan Kallickal } else 4866733b39aSJayamohan Kallickal return IRQ_NONE; 4876733b39aSJayamohan Kallickal } 4886733b39aSJayamohan Kallickal } 4896733b39aSJayamohan Kallickal 4906733b39aSJayamohan Kallickal static int beiscsi_init_irqs(struct beiscsi_hba *phba) 4916733b39aSJayamohan Kallickal { 4926733b39aSJayamohan Kallickal struct pci_dev *pcidev = phba->pcidev; 493bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 494bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 495bfead3b2SJayamohan Kallickal int ret, msix_vec, i = 0; 496bfead3b2SJayamohan Kallickal char desc[32]; 4976733b39aSJayamohan Kallickal 498bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 499bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 500bfead3b2SJayamohan Kallickal 501bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 502bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 503bfead3b2SJayamohan Kallickal sprintf(desc, "beiscsi_msix_%04x", i); 504bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 505bfead3b2SJayamohan Kallickal ret = request_irq(msix_vec, be_isr_msix, 0, desc, 506bfead3b2SJayamohan Kallickal &phwi_context->be_eq[i]); 507bfead3b2SJayamohan Kallickal } 508bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 509bfead3b2SJayamohan Kallickal ret = request_irq(msix_vec, be_isr_mcc, 0, "beiscsi_msix_mcc", 510bfead3b2SJayamohan Kallickal &phwi_context->be_eq[i]); 511bfead3b2SJayamohan Kallickal } else { 512bfead3b2SJayamohan Kallickal ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED, 513bfead3b2SJayamohan Kallickal "beiscsi", phba); 5146733b39aSJayamohan Kallickal if (ret) { 5156733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_init_irqs-" 5166733b39aSJayamohan Kallickal "Failed to register irq\\n"); 5176733b39aSJayamohan Kallickal return ret; 5186733b39aSJayamohan Kallickal } 519bfead3b2SJayamohan Kallickal } 5206733b39aSJayamohan Kallickal return 0; 5216733b39aSJayamohan Kallickal } 5226733b39aSJayamohan Kallickal 5236733b39aSJayamohan Kallickal static void hwi_ring_cq_db(struct beiscsi_hba *phba, 5246733b39aSJayamohan Kallickal unsigned int id, unsigned int num_processed, 5256733b39aSJayamohan Kallickal unsigned char rearm, unsigned char event) 5266733b39aSJayamohan Kallickal { 5276733b39aSJayamohan Kallickal u32 val = 0; 5286733b39aSJayamohan Kallickal val |= id & DB_CQ_RING_ID_MASK; 5296733b39aSJayamohan Kallickal if (rearm) 5306733b39aSJayamohan Kallickal val |= 1 << DB_CQ_REARM_SHIFT; 5316733b39aSJayamohan Kallickal val |= num_processed << DB_CQ_NUM_POPPED_SHIFT; 5326733b39aSJayamohan Kallickal iowrite32(val, phba->db_va + DB_CQ_OFFSET); 5336733b39aSJayamohan Kallickal } 5346733b39aSJayamohan Kallickal 5356733b39aSJayamohan Kallickal static unsigned int 5366733b39aSJayamohan Kallickal beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn, 5376733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 5386733b39aSJayamohan Kallickal unsigned short cid, 5396733b39aSJayamohan Kallickal struct pdu_base *ppdu, 5406733b39aSJayamohan Kallickal unsigned long pdu_len, 5416733b39aSJayamohan Kallickal void *pbuffer, unsigned long buf_len) 5426733b39aSJayamohan Kallickal { 5436733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 5446733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 545bfead3b2SJayamohan Kallickal struct iscsi_task *task; 546bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task; 547bfead3b2SJayamohan Kallickal struct iscsi_hdr *login_hdr; 5486733b39aSJayamohan Kallickal 5496733b39aSJayamohan Kallickal switch (ppdu->dw[offsetof(struct amap_pdu_base, opcode) / 32] & 5506733b39aSJayamohan Kallickal PDUBASE_OPCODE_MASK) { 5516733b39aSJayamohan Kallickal case ISCSI_OP_NOOP_IN: 5526733b39aSJayamohan Kallickal pbuffer = NULL; 5536733b39aSJayamohan Kallickal buf_len = 0; 5546733b39aSJayamohan Kallickal break; 5556733b39aSJayamohan Kallickal case ISCSI_OP_ASYNC_EVENT: 5566733b39aSJayamohan Kallickal break; 5576733b39aSJayamohan Kallickal case ISCSI_OP_REJECT: 5586733b39aSJayamohan Kallickal WARN_ON(!pbuffer); 5596733b39aSJayamohan Kallickal WARN_ON(!(buf_len == 48)); 5606733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "In ISCSI_OP_REJECT\n"); 5616733b39aSJayamohan Kallickal break; 5626733b39aSJayamohan Kallickal case ISCSI_OP_LOGIN_RSP: 5637bd6e25cSJayamohan Kallickal case ISCSI_OP_TEXT_RSP: 564bfead3b2SJayamohan Kallickal task = conn->login_task; 565bfead3b2SJayamohan Kallickal io_task = task->dd_data; 566bfead3b2SJayamohan Kallickal login_hdr = (struct iscsi_hdr *)ppdu; 567bfead3b2SJayamohan Kallickal login_hdr->itt = io_task->libiscsi_itt; 5686733b39aSJayamohan Kallickal break; 5696733b39aSJayamohan Kallickal default: 5706733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 5716733b39aSJayamohan Kallickal "Unrecognized opcode 0x%x in async msg \n", 5726733b39aSJayamohan Kallickal (ppdu-> 5736733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_base, opcode) / 32] 5746733b39aSJayamohan Kallickal & PDUBASE_OPCODE_MASK)); 5756733b39aSJayamohan Kallickal return 1; 5766733b39aSJayamohan Kallickal } 5776733b39aSJayamohan Kallickal 5786733b39aSJayamohan Kallickal spin_lock_bh(&session->lock); 5796733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)ppdu, pbuffer, buf_len); 5806733b39aSJayamohan Kallickal spin_unlock_bh(&session->lock); 5816733b39aSJayamohan Kallickal return 0; 5826733b39aSJayamohan Kallickal } 5836733b39aSJayamohan Kallickal 5846733b39aSJayamohan Kallickal static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba) 5856733b39aSJayamohan Kallickal { 5866733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 5876733b39aSJayamohan Kallickal 5886733b39aSJayamohan Kallickal if (phba->io_sgl_hndl_avbl) { 5896733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 5906733b39aSJayamohan Kallickal "In alloc_io_sgl_handle,io_sgl_alloc_index=%d \n", 5916733b39aSJayamohan Kallickal phba->io_sgl_alloc_index); 5926733b39aSJayamohan Kallickal psgl_handle = phba->io_sgl_hndl_base[phba-> 5936733b39aSJayamohan Kallickal io_sgl_alloc_index]; 5946733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_alloc_index] = NULL; 5956733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl--; 596bfead3b2SJayamohan Kallickal if (phba->io_sgl_alloc_index == (phba->params. 597bfead3b2SJayamohan Kallickal ios_per_ctrl - 1)) 5986733b39aSJayamohan Kallickal phba->io_sgl_alloc_index = 0; 5996733b39aSJayamohan Kallickal else 6006733b39aSJayamohan Kallickal phba->io_sgl_alloc_index++; 6016733b39aSJayamohan Kallickal } else 6026733b39aSJayamohan Kallickal psgl_handle = NULL; 6036733b39aSJayamohan Kallickal return psgl_handle; 6046733b39aSJayamohan Kallickal } 6056733b39aSJayamohan Kallickal 6066733b39aSJayamohan Kallickal static void 6076733b39aSJayamohan Kallickal free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) 6086733b39aSJayamohan Kallickal { 6096733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "In free_,io_sgl_free_index=%d \n", 6106733b39aSJayamohan Kallickal phba->io_sgl_free_index); 6116733b39aSJayamohan Kallickal if (phba->io_sgl_hndl_base[phba->io_sgl_free_index]) { 6126733b39aSJayamohan Kallickal /* 6136733b39aSJayamohan Kallickal * this can happen if clean_task is called on a task that 6146733b39aSJayamohan Kallickal * failed in xmit_task or alloc_pdu. 6156733b39aSJayamohan Kallickal */ 6166733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 6176733b39aSJayamohan Kallickal "Double Free in IO SGL io_sgl_free_index=%d," 6186733b39aSJayamohan Kallickal "value there=%p \n", phba->io_sgl_free_index, 6196733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_free_index]); 6206733b39aSJayamohan Kallickal return; 6216733b39aSJayamohan Kallickal } 6226733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle; 6236733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl++; 6246733b39aSJayamohan Kallickal if (phba->io_sgl_free_index == (phba->params.ios_per_ctrl - 1)) 6256733b39aSJayamohan Kallickal phba->io_sgl_free_index = 0; 6266733b39aSJayamohan Kallickal else 6276733b39aSJayamohan Kallickal phba->io_sgl_free_index++; 6286733b39aSJayamohan Kallickal } 6296733b39aSJayamohan Kallickal 6306733b39aSJayamohan Kallickal /** 6316733b39aSJayamohan Kallickal * alloc_wrb_handle - To allocate a wrb handle 6326733b39aSJayamohan Kallickal * @phba: The hba pointer 6336733b39aSJayamohan Kallickal * @cid: The cid to use for allocation 6346733b39aSJayamohan Kallickal * 6356733b39aSJayamohan Kallickal * This happens under session_lock until submission to chip 6366733b39aSJayamohan Kallickal */ 637d5431488SJayamohan Kallickal struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid) 6386733b39aSJayamohan Kallickal { 6396733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 6406733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 641d5431488SJayamohan Kallickal struct wrb_handle *pwrb_handle, *pwrb_handle_tmp; 6426733b39aSJayamohan Kallickal 6436733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 6446733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cid]; 645d5431488SJayamohan Kallickal if (pwrb_context->wrb_handles_available >= 2) { 646bfead3b2SJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[ 647bfead3b2SJayamohan Kallickal pwrb_context->alloc_index]; 648bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available--; 649bfead3b2SJayamohan Kallickal if (pwrb_context->alloc_index == 650bfead3b2SJayamohan Kallickal (phba->params.wrbs_per_cxn - 1)) 651bfead3b2SJayamohan Kallickal pwrb_context->alloc_index = 0; 652bfead3b2SJayamohan Kallickal else 653bfead3b2SJayamohan Kallickal pwrb_context->alloc_index++; 654d5431488SJayamohan Kallickal 655d5431488SJayamohan Kallickal pwrb_handle_tmp = pwrb_context->pwrb_handle_base[ 656d5431488SJayamohan Kallickal pwrb_context->alloc_index]; 657d5431488SJayamohan Kallickal pwrb_handle->nxt_wrb_index = pwrb_handle_tmp->wrb_index; 658bfead3b2SJayamohan Kallickal } else 659bfead3b2SJayamohan Kallickal pwrb_handle = NULL; 6606733b39aSJayamohan Kallickal return pwrb_handle; 6616733b39aSJayamohan Kallickal } 6626733b39aSJayamohan Kallickal 6636733b39aSJayamohan Kallickal /** 6646733b39aSJayamohan Kallickal * free_wrb_handle - To free the wrb handle back to pool 6656733b39aSJayamohan Kallickal * @phba: The hba pointer 6666733b39aSJayamohan Kallickal * @pwrb_context: The context to free from 6676733b39aSJayamohan Kallickal * @pwrb_handle: The wrb_handle to free 6686733b39aSJayamohan Kallickal * 6696733b39aSJayamohan Kallickal * This happens under session_lock until submission to chip 6706733b39aSJayamohan Kallickal */ 6716733b39aSJayamohan Kallickal static void 6726733b39aSJayamohan Kallickal free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context, 6736733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle) 6746733b39aSJayamohan Kallickal { 67535e66019SJayamohan Kallickal if (!ring_mode) 67635e66019SJayamohan Kallickal pwrb_context->pwrb_handle_base[pwrb_context->free_index] = 67735e66019SJayamohan Kallickal pwrb_handle; 678bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available++; 679bfead3b2SJayamohan Kallickal if (pwrb_context->free_index == (phba->params.wrbs_per_cxn - 1)) 680bfead3b2SJayamohan Kallickal pwrb_context->free_index = 0; 681bfead3b2SJayamohan Kallickal else 682bfead3b2SJayamohan Kallickal pwrb_context->free_index++; 683bfead3b2SJayamohan Kallickal 6846733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 685bfead3b2SJayamohan Kallickal "FREE WRB: pwrb_handle=%p free_index=0x%x" 6866733b39aSJayamohan Kallickal "wrb_handles_available=%d \n", 6876733b39aSJayamohan Kallickal pwrb_handle, pwrb_context->free_index, 688bfead3b2SJayamohan Kallickal pwrb_context->wrb_handles_available); 6896733b39aSJayamohan Kallickal } 6906733b39aSJayamohan Kallickal 6916733b39aSJayamohan Kallickal static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba) 6926733b39aSJayamohan Kallickal { 6936733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 6946733b39aSJayamohan Kallickal 6956733b39aSJayamohan Kallickal if (phba->eh_sgl_hndl_avbl) { 6966733b39aSJayamohan Kallickal psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index]; 6976733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL; 6986733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "mgmt_sgl_alloc_index=%d=0x%x \n", 6996733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index, phba->eh_sgl_alloc_index); 7006733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl--; 7016733b39aSJayamohan Kallickal if (phba->eh_sgl_alloc_index == 7026733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 7036733b39aSJayamohan Kallickal 1)) 7046733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index = 0; 7056733b39aSJayamohan Kallickal else 7066733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index++; 7076733b39aSJayamohan Kallickal } else 7086733b39aSJayamohan Kallickal psgl_handle = NULL; 7096733b39aSJayamohan Kallickal return psgl_handle; 7106733b39aSJayamohan Kallickal } 7116733b39aSJayamohan Kallickal 7126733b39aSJayamohan Kallickal void 7136733b39aSJayamohan Kallickal free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) 7146733b39aSJayamohan Kallickal { 7156733b39aSJayamohan Kallickal 716bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "In free_mgmt_sgl_handle,eh_sgl_free_index=%d \n", 717bfead3b2SJayamohan Kallickal phba->eh_sgl_free_index); 7186733b39aSJayamohan Kallickal if (phba->eh_sgl_hndl_base[phba->eh_sgl_free_index]) { 7196733b39aSJayamohan Kallickal /* 7206733b39aSJayamohan Kallickal * this can happen if clean_task is called on a task that 7216733b39aSJayamohan Kallickal * failed in xmit_task or alloc_pdu. 7226733b39aSJayamohan Kallickal */ 7236733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 7246733b39aSJayamohan Kallickal "Double Free in eh SGL ,eh_sgl_free_index=%d \n", 7256733b39aSJayamohan Kallickal phba->eh_sgl_free_index); 7266733b39aSJayamohan Kallickal return; 7276733b39aSJayamohan Kallickal } 7286733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle; 7296733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl++; 7306733b39aSJayamohan Kallickal if (phba->eh_sgl_free_index == 7316733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 1)) 7326733b39aSJayamohan Kallickal phba->eh_sgl_free_index = 0; 7336733b39aSJayamohan Kallickal else 7346733b39aSJayamohan Kallickal phba->eh_sgl_free_index++; 7356733b39aSJayamohan Kallickal } 7366733b39aSJayamohan Kallickal 7376733b39aSJayamohan Kallickal static void 7386733b39aSJayamohan Kallickal be_complete_io(struct beiscsi_conn *beiscsi_conn, 7396733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 7406733b39aSJayamohan Kallickal { 7416733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 7426733b39aSJayamohan Kallickal struct be_status_bhs *sts_bhs = 7436733b39aSJayamohan Kallickal (struct be_status_bhs *)io_task->cmd_bhs; 7446733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 7456733b39aSJayamohan Kallickal unsigned int sense_len; 7466733b39aSJayamohan Kallickal unsigned char *sense; 7476733b39aSJayamohan Kallickal u32 resid = 0, exp_cmdsn, max_cmdsn; 7486733b39aSJayamohan Kallickal u8 rsp, status, flags; 7496733b39aSJayamohan Kallickal 750bfead3b2SJayamohan Kallickal exp_cmdsn = (psol-> 7516733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 7526733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK); 753bfead3b2SJayamohan Kallickal max_cmdsn = ((psol-> 7546733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 7556733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK) + 7566733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 7576733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 7586733b39aSJayamohan Kallickal rsp = ((psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 32] 7596733b39aSJayamohan Kallickal & SOL_RESP_MASK) >> 16); 7606733b39aSJayamohan Kallickal status = ((psol->dw[offsetof(struct amap_sol_cqe, i_sts) / 32] 7616733b39aSJayamohan Kallickal & SOL_STS_MASK) >> 8); 7626733b39aSJayamohan Kallickal flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 7636733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 7646733b39aSJayamohan Kallickal 7656733b39aSJayamohan Kallickal task->sc->result = (DID_OK << 16) | status; 7666733b39aSJayamohan Kallickal if (rsp != ISCSI_STATUS_CMD_COMPLETED) { 7676733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 7686733b39aSJayamohan Kallickal goto unmap; 7696733b39aSJayamohan Kallickal } 7706733b39aSJayamohan Kallickal 7716733b39aSJayamohan Kallickal /* bidi not initially supported */ 7726733b39aSJayamohan Kallickal if (flags & (ISCSI_FLAG_CMD_UNDERFLOW | ISCSI_FLAG_CMD_OVERFLOW)) { 7736733b39aSJayamohan Kallickal resid = (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 7746733b39aSJayamohan Kallickal 32] & SOL_RES_CNT_MASK); 7756733b39aSJayamohan Kallickal 7766733b39aSJayamohan Kallickal if (!status && (flags & ISCSI_FLAG_CMD_OVERFLOW)) 7776733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 7786733b39aSJayamohan Kallickal 7796733b39aSJayamohan Kallickal if (flags & ISCSI_FLAG_CMD_UNDERFLOW) { 7806733b39aSJayamohan Kallickal scsi_set_resid(task->sc, resid); 7816733b39aSJayamohan Kallickal if (!status && (scsi_bufflen(task->sc) - resid < 7826733b39aSJayamohan Kallickal task->sc->underflow)) 7836733b39aSJayamohan Kallickal task->sc->result = DID_ERROR << 16; 7846733b39aSJayamohan Kallickal } 7856733b39aSJayamohan Kallickal } 7866733b39aSJayamohan Kallickal 7876733b39aSJayamohan Kallickal if (status == SAM_STAT_CHECK_CONDITION) { 788bfead3b2SJayamohan Kallickal unsigned short *slen = (unsigned short *)sts_bhs->sense_info; 7896733b39aSJayamohan Kallickal sense = sts_bhs->sense_info + sizeof(unsigned short); 790bfead3b2SJayamohan Kallickal sense_len = cpu_to_be16(*slen); 7916733b39aSJayamohan Kallickal memcpy(task->sc->sense_buffer, sense, 7926733b39aSJayamohan Kallickal min_t(u16, sense_len, SCSI_SENSE_BUFFERSIZE)); 7936733b39aSJayamohan Kallickal } 7946733b39aSJayamohan Kallickal if (io_task->cmd_bhs->iscsi_hdr.flags & ISCSI_FLAG_CMD_READ) { 7956733b39aSJayamohan Kallickal if (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32] 7966733b39aSJayamohan Kallickal & SOL_RES_CNT_MASK) 7976733b39aSJayamohan Kallickal conn->rxdata_octets += (psol-> 7986733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32] 7996733b39aSJayamohan Kallickal & SOL_RES_CNT_MASK); 8006733b39aSJayamohan Kallickal } 8016733b39aSJayamohan Kallickal unmap: 8026733b39aSJayamohan Kallickal scsi_dma_unmap(io_task->scsi_cmnd); 8036733b39aSJayamohan Kallickal iscsi_complete_scsi_task(task, exp_cmdsn, max_cmdsn); 8046733b39aSJayamohan Kallickal } 8056733b39aSJayamohan Kallickal 8066733b39aSJayamohan Kallickal static void 8076733b39aSJayamohan Kallickal be_complete_logout(struct beiscsi_conn *beiscsi_conn, 8086733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 8096733b39aSJayamohan Kallickal { 8106733b39aSJayamohan Kallickal struct iscsi_logout_rsp *hdr; 811bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 8126733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 8136733b39aSJayamohan Kallickal 8146733b39aSJayamohan Kallickal hdr = (struct iscsi_logout_rsp *)task->hdr; 8157bd6e25cSJayamohan Kallickal hdr->opcode = ISCSI_OP_LOGOUT_RSP; 8166733b39aSJayamohan Kallickal hdr->t2wait = 5; 8176733b39aSJayamohan Kallickal hdr->t2retain = 0; 8186733b39aSJayamohan Kallickal hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 8196733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 8206733b39aSJayamohan Kallickal hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 8216733b39aSJayamohan Kallickal 32] & SOL_RESP_MASK); 8226733b39aSJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(psol-> 8236733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 8246733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK); 8256733b39aSJayamohan Kallickal hdr->max_cmdsn = be32_to_cpu((psol-> 8266733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32] 8276733b39aSJayamohan Kallickal & SOL_EXP_CMD_SN_MASK) + 8286733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 8296733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 8307bd6e25cSJayamohan Kallickal hdr->dlength[0] = 0; 8317bd6e25cSJayamohan Kallickal hdr->dlength[1] = 0; 8327bd6e25cSJayamohan Kallickal hdr->dlength[2] = 0; 8336733b39aSJayamohan Kallickal hdr->hlength = 0; 834bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 8356733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 8366733b39aSJayamohan Kallickal } 8376733b39aSJayamohan Kallickal 8386733b39aSJayamohan Kallickal static void 8396733b39aSJayamohan Kallickal be_complete_tmf(struct beiscsi_conn *beiscsi_conn, 8406733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 8416733b39aSJayamohan Kallickal { 8426733b39aSJayamohan Kallickal struct iscsi_tm_rsp *hdr; 8436733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 844bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 8456733b39aSJayamohan Kallickal 8466733b39aSJayamohan Kallickal hdr = (struct iscsi_tm_rsp *)task->hdr; 8477bd6e25cSJayamohan Kallickal hdr->opcode = ISCSI_OP_SCSI_TMFUNC_RSP; 8486733b39aSJayamohan Kallickal hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 8496733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 8506733b39aSJayamohan Kallickal hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 8516733b39aSJayamohan Kallickal 32] & SOL_RESP_MASK); 8526733b39aSJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe, 8536733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK); 8546733b39aSJayamohan Kallickal hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe, 8556733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) + 8566733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 8576733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 858bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 8596733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 8606733b39aSJayamohan Kallickal } 8616733b39aSJayamohan Kallickal 8626733b39aSJayamohan Kallickal static void 8636733b39aSJayamohan Kallickal hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn, 8646733b39aSJayamohan Kallickal struct beiscsi_hba *phba, struct sol_cqe *psol) 8656733b39aSJayamohan Kallickal { 8666733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 867bfead3b2SJayamohan Kallickal struct wrb_handle *pwrb_handle = NULL; 86835e66019SJayamohan Kallickal struct sgl_handle *psgl_handle = NULL; 8696733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 870bfead3b2SJayamohan Kallickal struct iscsi_task *task; 871bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task; 8726733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 8736733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 8746733b39aSJayamohan Kallickal 8756733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 87635e66019SJayamohan Kallickal if (ring_mode) { 87735e66019SJayamohan Kallickal psgl_handle = phba->sgl_hndl_array[((psol-> 87835e66019SJayamohan Kallickal dw[offsetof(struct amap_sol_cqe_ring, icd_index) / 87935e66019SJayamohan Kallickal 32] & SOL_ICD_INDEX_MASK) >> 6)]; 88035e66019SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[psgl_handle->cid]; 88135e66019SJayamohan Kallickal task = psgl_handle->task; 88235e66019SJayamohan Kallickal pwrb_handle = NULL; 88335e66019SJayamohan Kallickal } else { 8846733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[((psol-> 8856733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, cid) / 32] & 8867da50879SJayamohan Kallickal SOL_CID_MASK) >> 6) - 8877da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 8886733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol-> 8896733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, wrb_index) / 8906733b39aSJayamohan Kallickal 32] & SOL_WRB_INDEX_MASK) >> 16)]; 891bfead3b2SJayamohan Kallickal task = pwrb_handle->pio_handle; 89235e66019SJayamohan Kallickal } 89335e66019SJayamohan Kallickal 894bfead3b2SJayamohan Kallickal io_task = task->dd_data; 895bfead3b2SJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 896bfead3b2SJayamohan Kallickal free_mgmt_sgl_handle(phba, io_task->psgl_handle); 897bfead3b2SJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 8986733b39aSJayamohan Kallickal spin_lock_bh(&session->lock); 8996733b39aSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, pwrb_handle); 9006733b39aSJayamohan Kallickal spin_unlock_bh(&session->lock); 9016733b39aSJayamohan Kallickal } 9026733b39aSJayamohan Kallickal 9036733b39aSJayamohan Kallickal static void 9046733b39aSJayamohan Kallickal be_complete_nopin_resp(struct beiscsi_conn *beiscsi_conn, 9056733b39aSJayamohan Kallickal struct iscsi_task *task, struct sol_cqe *psol) 9066733b39aSJayamohan Kallickal { 9076733b39aSJayamohan Kallickal struct iscsi_nopin *hdr; 9086733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 909bfead3b2SJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 9106733b39aSJayamohan Kallickal 9116733b39aSJayamohan Kallickal hdr = (struct iscsi_nopin *)task->hdr; 9126733b39aSJayamohan Kallickal hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32] 9136733b39aSJayamohan Kallickal & SOL_FLAGS_MASK) >> 24) | 0x80; 9146733b39aSJayamohan Kallickal hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe, 9156733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK); 9166733b39aSJayamohan Kallickal hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe, 9176733b39aSJayamohan Kallickal i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) + 9186733b39aSJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd) 9196733b39aSJayamohan Kallickal / 32] & SOL_CMD_WND_MASK) >> 24) - 1); 9206733b39aSJayamohan Kallickal hdr->opcode = ISCSI_OP_NOOP_IN; 921bfead3b2SJayamohan Kallickal hdr->itt = io_task->libiscsi_itt; 9226733b39aSJayamohan Kallickal __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); 9236733b39aSJayamohan Kallickal } 9246733b39aSJayamohan Kallickal 9256733b39aSJayamohan Kallickal static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn, 9266733b39aSJayamohan Kallickal struct beiscsi_hba *phba, struct sol_cqe *psol) 9276733b39aSJayamohan Kallickal { 9286733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 9296733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 9306733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 9316733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 9326733b39aSJayamohan Kallickal struct iscsi_task *task; 93335e66019SJayamohan Kallickal struct sgl_handle *psgl_handle = NULL; 934bfead3b2SJayamohan Kallickal unsigned int type; 9356733b39aSJayamohan Kallickal struct iscsi_conn *conn = beiscsi_conn->conn; 9366733b39aSJayamohan Kallickal struct iscsi_session *session = conn->session; 9376733b39aSJayamohan Kallickal 9386733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 93935e66019SJayamohan Kallickal if (ring_mode) { 94035e66019SJayamohan Kallickal psgl_handle = phba->sgl_hndl_array[((psol-> 94135e66019SJayamohan Kallickal dw[offsetof(struct amap_sol_cqe_ring, icd_index) / 94235e66019SJayamohan Kallickal 32] & SOL_ICD_INDEX_MASK) >> 6)]; 94335e66019SJayamohan Kallickal task = psgl_handle->task; 94435e66019SJayamohan Kallickal type = psgl_handle->type; 94535e66019SJayamohan Kallickal } else { 9466733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr-> 947bfead3b2SJayamohan Kallickal wrb_context[((psol->dw[offsetof 948bfead3b2SJayamohan Kallickal (struct amap_sol_cqe, cid) / 32] 9497da50879SJayamohan Kallickal & SOL_CID_MASK) >> 6) - 9507da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 9516733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol-> 9526733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, wrb_index) / 9536733b39aSJayamohan Kallickal 32] & SOL_WRB_INDEX_MASK) >> 16)]; 9546733b39aSJayamohan Kallickal task = pwrb_handle->pio_handle; 9556733b39aSJayamohan Kallickal pwrb = pwrb_handle->pwrb; 956bfead3b2SJayamohan Kallickal type = (pwrb->dw[offsetof(struct amap_iscsi_wrb, type) / 32] & 957bfead3b2SJayamohan Kallickal WRB_TYPE_MASK) >> 28; 95835e66019SJayamohan Kallickal } 959bfead3b2SJayamohan Kallickal spin_lock_bh(&session->lock); 960bfead3b2SJayamohan Kallickal switch (type) { 9616733b39aSJayamohan Kallickal case HWH_TYPE_IO: 9626733b39aSJayamohan Kallickal case HWH_TYPE_IO_RD: 9636733b39aSJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == 9646733b39aSJayamohan Kallickal ISCSI_OP_NOOP_OUT) { 9656733b39aSJayamohan Kallickal be_complete_nopin_resp(beiscsi_conn, task, psol); 9666733b39aSJayamohan Kallickal } else 9676733b39aSJayamohan Kallickal be_complete_io(beiscsi_conn, task, psol); 9686733b39aSJayamohan Kallickal break; 9696733b39aSJayamohan Kallickal 9706733b39aSJayamohan Kallickal case HWH_TYPE_LOGOUT: 9716733b39aSJayamohan Kallickal be_complete_logout(beiscsi_conn, task, psol); 9726733b39aSJayamohan Kallickal break; 9736733b39aSJayamohan Kallickal 9746733b39aSJayamohan Kallickal case HWH_TYPE_LOGIN: 9756733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 9766733b39aSJayamohan Kallickal "\t\t No HWH_TYPE_LOGIN Expected in hwi_complete_cmd" 9776733b39aSJayamohan Kallickal "- Solicited path \n"); 9786733b39aSJayamohan Kallickal break; 9796733b39aSJayamohan Kallickal 9806733b39aSJayamohan Kallickal case HWH_TYPE_TMF: 9816733b39aSJayamohan Kallickal be_complete_tmf(beiscsi_conn, task, psol); 9826733b39aSJayamohan Kallickal break; 9836733b39aSJayamohan Kallickal 9846733b39aSJayamohan Kallickal case HWH_TYPE_NOP: 9856733b39aSJayamohan Kallickal be_complete_nopin_resp(beiscsi_conn, task, psol); 9866733b39aSJayamohan Kallickal break; 9876733b39aSJayamohan Kallickal 9886733b39aSJayamohan Kallickal default: 98935e66019SJayamohan Kallickal if (ring_mode) 99035e66019SJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 99135e66019SJayamohan Kallickal "In hwi_complete_cmd, unknown type = %d" 99235e66019SJayamohan Kallickal "icd_index 0x%x CID 0x%x\n", type, 99335e66019SJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe_ring, 99435e66019SJayamohan Kallickal icd_index) / 32] & SOL_ICD_INDEX_MASK) >> 6), 99535e66019SJayamohan Kallickal psgl_handle->cid); 99635e66019SJayamohan Kallickal else 9976733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 998bfead3b2SJayamohan Kallickal "In hwi_complete_cmd, unknown type = %d" 999bfead3b2SJayamohan Kallickal "wrb_index 0x%x CID 0x%x\n", type, 1000bfead3b2SJayamohan Kallickal ((psol->dw[offsetof(struct amap_iscsi_wrb, 1001bfead3b2SJayamohan Kallickal type) / 32] & SOL_WRB_INDEX_MASK) >> 16), 1002bfead3b2SJayamohan Kallickal ((psol->dw[offsetof(struct amap_sol_cqe, 1003bfead3b2SJayamohan Kallickal cid) / 32] & SOL_CID_MASK) >> 6)); 10046733b39aSJayamohan Kallickal break; 10056733b39aSJayamohan Kallickal } 100635e66019SJayamohan Kallickal 10076733b39aSJayamohan Kallickal spin_unlock_bh(&session->lock); 10086733b39aSJayamohan Kallickal } 10096733b39aSJayamohan Kallickal 10106733b39aSJayamohan Kallickal static struct list_head *hwi_get_async_busy_list(struct hwi_async_pdu_context 10116733b39aSJayamohan Kallickal *pasync_ctx, unsigned int is_header, 10126733b39aSJayamohan Kallickal unsigned int host_write_ptr) 10136733b39aSJayamohan Kallickal { 10146733b39aSJayamohan Kallickal if (is_header) 10156733b39aSJayamohan Kallickal return &pasync_ctx->async_entry[host_write_ptr]. 10166733b39aSJayamohan Kallickal header_busy_list; 10176733b39aSJayamohan Kallickal else 10186733b39aSJayamohan Kallickal return &pasync_ctx->async_entry[host_write_ptr].data_busy_list; 10196733b39aSJayamohan Kallickal } 10206733b39aSJayamohan Kallickal 10216733b39aSJayamohan Kallickal static struct async_pdu_handle * 10226733b39aSJayamohan Kallickal hwi_get_async_handle(struct beiscsi_hba *phba, 10236733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn, 10246733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, 10256733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe, unsigned int *pcq_index) 10266733b39aSJayamohan Kallickal { 10276733b39aSJayamohan Kallickal struct be_bus_address phys_addr; 10286733b39aSJayamohan Kallickal struct list_head *pbusy_list; 10296733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 10306733b39aSJayamohan Kallickal int buffer_len = 0; 10316733b39aSJayamohan Kallickal unsigned char buffer_index = -1; 10326733b39aSJayamohan Kallickal unsigned char is_header = 0; 10336733b39aSJayamohan Kallickal 10346733b39aSJayamohan Kallickal phys_addr.u.a32.address_lo = 10356733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_lo) / 32] - 10366733b39aSJayamohan Kallickal ((pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32] 10376733b39aSJayamohan Kallickal & PDUCQE_DPL_MASK) >> 16); 10386733b39aSJayamohan Kallickal phys_addr.u.a32.address_hi = 10396733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_hi) / 32]; 10406733b39aSJayamohan Kallickal 10416733b39aSJayamohan Kallickal phys_addr.u.a64.address = 10426733b39aSJayamohan Kallickal *((unsigned long long *)(&phys_addr.u.a64.address)); 10436733b39aSJayamohan Kallickal 10446733b39aSJayamohan Kallickal switch (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, code) / 32] 10456733b39aSJayamohan Kallickal & PDUCQE_CODE_MASK) { 10466733b39aSJayamohan Kallickal case UNSOL_HDR_NOTIFY: 10476733b39aSJayamohan Kallickal is_header = 1; 10486733b39aSJayamohan Kallickal 10496733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, 1, 10506733b39aSJayamohan Kallickal (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 10516733b39aSJayamohan Kallickal index) / 32] & PDUCQE_INDEX_MASK)); 10526733b39aSJayamohan Kallickal 10536733b39aSJayamohan Kallickal buffer_len = (unsigned int)(phys_addr.u.a64.address - 10546733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address); 10556733b39aSJayamohan Kallickal 10566733b39aSJayamohan Kallickal buffer_index = buffer_len / 10576733b39aSJayamohan Kallickal pasync_ctx->async_header.buffer_size; 10586733b39aSJayamohan Kallickal 10596733b39aSJayamohan Kallickal break; 10606733b39aSJayamohan Kallickal case UNSOL_DATA_NOTIFY: 10616733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, 0, (pdpdu_cqe-> 10626733b39aSJayamohan Kallickal dw[offsetof(struct amap_i_t_dpdu_cqe, 10636733b39aSJayamohan Kallickal index) / 32] & PDUCQE_INDEX_MASK)); 10646733b39aSJayamohan Kallickal buffer_len = (unsigned long)(phys_addr.u.a64.address - 10656733b39aSJayamohan Kallickal pasync_ctx->async_data.pa_base.u. 10666733b39aSJayamohan Kallickal a64.address); 10676733b39aSJayamohan Kallickal buffer_index = buffer_len / pasync_ctx->async_data.buffer_size; 10686733b39aSJayamohan Kallickal break; 10696733b39aSJayamohan Kallickal default: 10706733b39aSJayamohan Kallickal pbusy_list = NULL; 10716733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 10726733b39aSJayamohan Kallickal "Unexpected code=%d \n", 10736733b39aSJayamohan Kallickal pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 10746733b39aSJayamohan Kallickal code) / 32] & PDUCQE_CODE_MASK); 10756733b39aSJayamohan Kallickal return NULL; 10766733b39aSJayamohan Kallickal } 10776733b39aSJayamohan Kallickal 10786733b39aSJayamohan Kallickal WARN_ON(!(buffer_index <= pasync_ctx->async_data.num_entries)); 10796733b39aSJayamohan Kallickal WARN_ON(list_empty(pbusy_list)); 10806733b39aSJayamohan Kallickal list_for_each_entry(pasync_handle, pbusy_list, link) { 10816733b39aSJayamohan Kallickal WARN_ON(pasync_handle->consumed); 10826733b39aSJayamohan Kallickal if (pasync_handle->index == buffer_index) 10836733b39aSJayamohan Kallickal break; 10846733b39aSJayamohan Kallickal } 10856733b39aSJayamohan Kallickal 10866733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 10876733b39aSJayamohan Kallickal 10887da50879SJayamohan Kallickal pasync_handle->cri = (unsigned short)beiscsi_conn->beiscsi_conn_cid - 10897da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start; 10906733b39aSJayamohan Kallickal pasync_handle->is_header = is_header; 10916733b39aSJayamohan Kallickal pasync_handle->buffer_len = ((pdpdu_cqe-> 10926733b39aSJayamohan Kallickal dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32] 10936733b39aSJayamohan Kallickal & PDUCQE_DPL_MASK) >> 16); 10946733b39aSJayamohan Kallickal 10956733b39aSJayamohan Kallickal *pcq_index = (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, 10966733b39aSJayamohan Kallickal index) / 32] & PDUCQE_INDEX_MASK); 10976733b39aSJayamohan Kallickal return pasync_handle; 10986733b39aSJayamohan Kallickal } 10996733b39aSJayamohan Kallickal 11006733b39aSJayamohan Kallickal static unsigned int 11016733b39aSJayamohan Kallickal hwi_update_async_writables(struct hwi_async_pdu_context *pasync_ctx, 11026733b39aSJayamohan Kallickal unsigned int is_header, unsigned int cq_index) 11036733b39aSJayamohan Kallickal { 11046733b39aSJayamohan Kallickal struct list_head *pbusy_list; 11056733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 11066733b39aSJayamohan Kallickal unsigned int num_entries, writables = 0; 11076733b39aSJayamohan Kallickal unsigned int *pep_read_ptr, *pwritables; 11086733b39aSJayamohan Kallickal 11096733b39aSJayamohan Kallickal 11106733b39aSJayamohan Kallickal if (is_header) { 11116733b39aSJayamohan Kallickal pep_read_ptr = &pasync_ctx->async_header.ep_read_ptr; 11126733b39aSJayamohan Kallickal pwritables = &pasync_ctx->async_header.writables; 11136733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_header.num_entries; 11146733b39aSJayamohan Kallickal } else { 11156733b39aSJayamohan Kallickal pep_read_ptr = &pasync_ctx->async_data.ep_read_ptr; 11166733b39aSJayamohan Kallickal pwritables = &pasync_ctx->async_data.writables; 11176733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_data.num_entries; 11186733b39aSJayamohan Kallickal } 11196733b39aSJayamohan Kallickal 11206733b39aSJayamohan Kallickal while ((*pep_read_ptr) != cq_index) { 11216733b39aSJayamohan Kallickal (*pep_read_ptr)++; 11226733b39aSJayamohan Kallickal *pep_read_ptr = (*pep_read_ptr) % num_entries; 11236733b39aSJayamohan Kallickal 11246733b39aSJayamohan Kallickal pbusy_list = hwi_get_async_busy_list(pasync_ctx, is_header, 11256733b39aSJayamohan Kallickal *pep_read_ptr); 11266733b39aSJayamohan Kallickal if (writables == 0) 11276733b39aSJayamohan Kallickal WARN_ON(list_empty(pbusy_list)); 11286733b39aSJayamohan Kallickal 11296733b39aSJayamohan Kallickal if (!list_empty(pbusy_list)) { 11306733b39aSJayamohan Kallickal pasync_handle = list_entry(pbusy_list->next, 11316733b39aSJayamohan Kallickal struct async_pdu_handle, 11326733b39aSJayamohan Kallickal link); 11336733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 11346733b39aSJayamohan Kallickal pasync_handle->consumed = 1; 11356733b39aSJayamohan Kallickal } 11366733b39aSJayamohan Kallickal 11376733b39aSJayamohan Kallickal writables++; 11386733b39aSJayamohan Kallickal } 11396733b39aSJayamohan Kallickal 11406733b39aSJayamohan Kallickal if (!writables) { 11416733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 11426733b39aSJayamohan Kallickal "Duplicate notification received - index 0x%x!!\n", 11436733b39aSJayamohan Kallickal cq_index); 11446733b39aSJayamohan Kallickal WARN_ON(1); 11456733b39aSJayamohan Kallickal } 11466733b39aSJayamohan Kallickal 11476733b39aSJayamohan Kallickal *pwritables = *pwritables + writables; 11486733b39aSJayamohan Kallickal return 0; 11496733b39aSJayamohan Kallickal } 11506733b39aSJayamohan Kallickal 11516733b39aSJayamohan Kallickal static unsigned int hwi_free_async_msg(struct beiscsi_hba *phba, 11526733b39aSJayamohan Kallickal unsigned int cri) 11536733b39aSJayamohan Kallickal { 11546733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 11556733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 11566733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle, *tmp_handle; 11576733b39aSJayamohan Kallickal struct list_head *plist; 11586733b39aSJayamohan Kallickal unsigned int i = 0; 11596733b39aSJayamohan Kallickal 11606733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 11616733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 11626733b39aSJayamohan Kallickal 11636733b39aSJayamohan Kallickal plist = &pasync_ctx->async_entry[cri].wait_queue.list; 11646733b39aSJayamohan Kallickal 11656733b39aSJayamohan Kallickal list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link) { 11666733b39aSJayamohan Kallickal list_del(&pasync_handle->link); 11676733b39aSJayamohan Kallickal 11686733b39aSJayamohan Kallickal if (i == 0) { 11696733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 11706733b39aSJayamohan Kallickal &pasync_ctx->async_header.free_list); 11716733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries++; 11726733b39aSJayamohan Kallickal i++; 11736733b39aSJayamohan Kallickal } else { 11746733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 11756733b39aSJayamohan Kallickal &pasync_ctx->async_data.free_list); 11766733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries++; 11776733b39aSJayamohan Kallickal i++; 11786733b39aSJayamohan Kallickal } 11796733b39aSJayamohan Kallickal } 11806733b39aSJayamohan Kallickal 11816733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[cri].wait_queue.list); 11826733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_received = 0; 11836733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0; 11846733b39aSJayamohan Kallickal return 0; 11856733b39aSJayamohan Kallickal } 11866733b39aSJayamohan Kallickal 11876733b39aSJayamohan Kallickal static struct phys_addr * 11886733b39aSJayamohan Kallickal hwi_get_ring_address(struct hwi_async_pdu_context *pasync_ctx, 11896733b39aSJayamohan Kallickal unsigned int is_header, unsigned int host_write_ptr) 11906733b39aSJayamohan Kallickal { 11916733b39aSJayamohan Kallickal struct phys_addr *pasync_sge = NULL; 11926733b39aSJayamohan Kallickal 11936733b39aSJayamohan Kallickal if (is_header) 11946733b39aSJayamohan Kallickal pasync_sge = pasync_ctx->async_header.ring_base; 11956733b39aSJayamohan Kallickal else 11966733b39aSJayamohan Kallickal pasync_sge = pasync_ctx->async_data.ring_base; 11976733b39aSJayamohan Kallickal 11986733b39aSJayamohan Kallickal return pasync_sge + host_write_ptr; 11996733b39aSJayamohan Kallickal } 12006733b39aSJayamohan Kallickal 12016733b39aSJayamohan Kallickal static void hwi_post_async_buffers(struct beiscsi_hba *phba, 12026733b39aSJayamohan Kallickal unsigned int is_header) 12036733b39aSJayamohan Kallickal { 12046733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 12056733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 12066733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 12076733b39aSJayamohan Kallickal struct list_head *pfree_link, *pbusy_list; 12086733b39aSJayamohan Kallickal struct phys_addr *pasync_sge; 12096733b39aSJayamohan Kallickal unsigned int ring_id, num_entries; 12106733b39aSJayamohan Kallickal unsigned int host_write_num; 12116733b39aSJayamohan Kallickal unsigned int writables; 12126733b39aSJayamohan Kallickal unsigned int i = 0; 12136733b39aSJayamohan Kallickal u32 doorbell = 0; 12146733b39aSJayamohan Kallickal 12156733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 12166733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 12176733b39aSJayamohan Kallickal 12186733b39aSJayamohan Kallickal if (is_header) { 12196733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_header.num_entries; 12206733b39aSJayamohan Kallickal writables = min(pasync_ctx->async_header.writables, 12216733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries); 12226733b39aSJayamohan Kallickal pfree_link = pasync_ctx->async_header.free_list.next; 12236733b39aSJayamohan Kallickal host_write_num = pasync_ctx->async_header.host_write_ptr; 12246733b39aSJayamohan Kallickal ring_id = phwi_ctrlr->default_pdu_hdr.id; 12256733b39aSJayamohan Kallickal } else { 12266733b39aSJayamohan Kallickal num_entries = pasync_ctx->async_data.num_entries; 12276733b39aSJayamohan Kallickal writables = min(pasync_ctx->async_data.writables, 12286733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries); 12296733b39aSJayamohan Kallickal pfree_link = pasync_ctx->async_data.free_list.next; 12306733b39aSJayamohan Kallickal host_write_num = pasync_ctx->async_data.host_write_ptr; 12316733b39aSJayamohan Kallickal ring_id = phwi_ctrlr->default_pdu_data.id; 12326733b39aSJayamohan Kallickal } 12336733b39aSJayamohan Kallickal 12346733b39aSJayamohan Kallickal writables = (writables / 8) * 8; 12356733b39aSJayamohan Kallickal if (writables) { 12366733b39aSJayamohan Kallickal for (i = 0; i < writables; i++) { 12376733b39aSJayamohan Kallickal pbusy_list = 12386733b39aSJayamohan Kallickal hwi_get_async_busy_list(pasync_ctx, is_header, 12396733b39aSJayamohan Kallickal host_write_num); 12406733b39aSJayamohan Kallickal pasync_handle = 12416733b39aSJayamohan Kallickal list_entry(pfree_link, struct async_pdu_handle, 12426733b39aSJayamohan Kallickal link); 12436733b39aSJayamohan Kallickal WARN_ON(!pasync_handle); 12446733b39aSJayamohan Kallickal pasync_handle->consumed = 0; 12456733b39aSJayamohan Kallickal 12466733b39aSJayamohan Kallickal pfree_link = pfree_link->next; 12476733b39aSJayamohan Kallickal 12486733b39aSJayamohan Kallickal pasync_sge = hwi_get_ring_address(pasync_ctx, 12496733b39aSJayamohan Kallickal is_header, host_write_num); 12506733b39aSJayamohan Kallickal 12516733b39aSJayamohan Kallickal pasync_sge->hi = pasync_handle->pa.u.a32.address_lo; 12526733b39aSJayamohan Kallickal pasync_sge->lo = pasync_handle->pa.u.a32.address_hi; 12536733b39aSJayamohan Kallickal 12546733b39aSJayamohan Kallickal list_move(&pasync_handle->link, pbusy_list); 12556733b39aSJayamohan Kallickal 12566733b39aSJayamohan Kallickal host_write_num++; 12576733b39aSJayamohan Kallickal host_write_num = host_write_num % num_entries; 12586733b39aSJayamohan Kallickal } 12596733b39aSJayamohan Kallickal 12606733b39aSJayamohan Kallickal if (is_header) { 12616733b39aSJayamohan Kallickal pasync_ctx->async_header.host_write_ptr = 12626733b39aSJayamohan Kallickal host_write_num; 12636733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries -= writables; 12646733b39aSJayamohan Kallickal pasync_ctx->async_header.writables -= writables; 12656733b39aSJayamohan Kallickal pasync_ctx->async_header.busy_entries += writables; 12666733b39aSJayamohan Kallickal } else { 12676733b39aSJayamohan Kallickal pasync_ctx->async_data.host_write_ptr = host_write_num; 12686733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries -= writables; 12696733b39aSJayamohan Kallickal pasync_ctx->async_data.writables -= writables; 12706733b39aSJayamohan Kallickal pasync_ctx->async_data.busy_entries += writables; 12716733b39aSJayamohan Kallickal } 12726733b39aSJayamohan Kallickal 12736733b39aSJayamohan Kallickal doorbell |= ring_id & DB_DEF_PDU_RING_ID_MASK; 12746733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_REARM_SHIFT; 12756733b39aSJayamohan Kallickal doorbell |= 0 << DB_DEF_PDU_EVENT_SHIFT; 12766733b39aSJayamohan Kallickal doorbell |= (writables & DB_DEF_PDU_CQPROC_MASK) 12776733b39aSJayamohan Kallickal << DB_DEF_PDU_CQPROC_SHIFT; 12786733b39aSJayamohan Kallickal 12796733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_RXULP0_OFFSET); 12806733b39aSJayamohan Kallickal } 12816733b39aSJayamohan Kallickal } 12826733b39aSJayamohan Kallickal 12836733b39aSJayamohan Kallickal static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba, 12846733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn, 12856733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe) 12866733b39aSJayamohan Kallickal { 12876733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 12886733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 12896733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 12906733b39aSJayamohan Kallickal unsigned int cq_index = -1; 12916733b39aSJayamohan Kallickal 12926733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 12936733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 12946733b39aSJayamohan Kallickal 12956733b39aSJayamohan Kallickal pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx, 12966733b39aSJayamohan Kallickal pdpdu_cqe, &cq_index); 12976733b39aSJayamohan Kallickal BUG_ON(pasync_handle->is_header != 0); 12986733b39aSJayamohan Kallickal if (pasync_handle->consumed == 0) 12996733b39aSJayamohan Kallickal hwi_update_async_writables(pasync_ctx, pasync_handle->is_header, 13006733b39aSJayamohan Kallickal cq_index); 13016733b39aSJayamohan Kallickal 13026733b39aSJayamohan Kallickal hwi_free_async_msg(phba, pasync_handle->cri); 13036733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, pasync_handle->is_header); 13046733b39aSJayamohan Kallickal } 13056733b39aSJayamohan Kallickal 13066733b39aSJayamohan Kallickal static unsigned int 13076733b39aSJayamohan Kallickal hwi_fwd_async_msg(struct beiscsi_conn *beiscsi_conn, 13086733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 13096733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx, unsigned short cri) 13106733b39aSJayamohan Kallickal { 13116733b39aSJayamohan Kallickal struct list_head *plist; 13126733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle; 13136733b39aSJayamohan Kallickal void *phdr = NULL; 13146733b39aSJayamohan Kallickal unsigned int hdr_len = 0, buf_len = 0; 13156733b39aSJayamohan Kallickal unsigned int status, index = 0, offset = 0; 13166733b39aSJayamohan Kallickal void *pfirst_buffer = NULL; 13176733b39aSJayamohan Kallickal unsigned int num_buf = 0; 13186733b39aSJayamohan Kallickal 13196733b39aSJayamohan Kallickal plist = &pasync_ctx->async_entry[cri].wait_queue.list; 13206733b39aSJayamohan Kallickal 13216733b39aSJayamohan Kallickal list_for_each_entry(pasync_handle, plist, link) { 13226733b39aSJayamohan Kallickal if (index == 0) { 13236733b39aSJayamohan Kallickal phdr = pasync_handle->pbuffer; 13246733b39aSJayamohan Kallickal hdr_len = pasync_handle->buffer_len; 13256733b39aSJayamohan Kallickal } else { 13266733b39aSJayamohan Kallickal buf_len = pasync_handle->buffer_len; 13276733b39aSJayamohan Kallickal if (!num_buf) { 13286733b39aSJayamohan Kallickal pfirst_buffer = pasync_handle->pbuffer; 13296733b39aSJayamohan Kallickal num_buf++; 13306733b39aSJayamohan Kallickal } 13316733b39aSJayamohan Kallickal memcpy(pfirst_buffer + offset, 13326733b39aSJayamohan Kallickal pasync_handle->pbuffer, buf_len); 13336733b39aSJayamohan Kallickal offset = buf_len; 13346733b39aSJayamohan Kallickal } 13356733b39aSJayamohan Kallickal index++; 13366733b39aSJayamohan Kallickal } 13376733b39aSJayamohan Kallickal 13386733b39aSJayamohan Kallickal status = beiscsi_process_async_pdu(beiscsi_conn, phba, 13397da50879SJayamohan Kallickal (beiscsi_conn->beiscsi_conn_cid - 13407da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start), 13416733b39aSJayamohan Kallickal phdr, hdr_len, pfirst_buffer, 13426733b39aSJayamohan Kallickal buf_len); 13436733b39aSJayamohan Kallickal 13446733b39aSJayamohan Kallickal if (status == 0) 13456733b39aSJayamohan Kallickal hwi_free_async_msg(phba, cri); 13466733b39aSJayamohan Kallickal return 0; 13476733b39aSJayamohan Kallickal } 13486733b39aSJayamohan Kallickal 13496733b39aSJayamohan Kallickal static unsigned int 13506733b39aSJayamohan Kallickal hwi_gather_async_pdu(struct beiscsi_conn *beiscsi_conn, 13516733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 13526733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle) 13536733b39aSJayamohan Kallickal { 13546733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 13556733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 13566733b39aSJayamohan Kallickal unsigned int bytes_needed = 0, status = 0; 13576733b39aSJayamohan Kallickal unsigned short cri = pasync_handle->cri; 13586733b39aSJayamohan Kallickal struct pdu_base *ppdu; 13596733b39aSJayamohan Kallickal 13606733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 13616733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 13626733b39aSJayamohan Kallickal 13636733b39aSJayamohan Kallickal list_del(&pasync_handle->link); 13646733b39aSJayamohan Kallickal if (pasync_handle->is_header) { 13656733b39aSJayamohan Kallickal pasync_ctx->async_header.busy_entries--; 13666733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) { 13676733b39aSJayamohan Kallickal hwi_free_async_msg(phba, cri); 13686733b39aSJayamohan Kallickal BUG(); 13696733b39aSJayamohan Kallickal } 13706733b39aSJayamohan Kallickal 13716733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0; 13726733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_received = 1; 13736733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.hdr_len = 13746733b39aSJayamohan Kallickal (unsigned short)pasync_handle->buffer_len; 13756733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 13766733b39aSJayamohan Kallickal &pasync_ctx->async_entry[cri].wait_queue.list); 13776733b39aSJayamohan Kallickal 13786733b39aSJayamohan Kallickal ppdu = pasync_handle->pbuffer; 13796733b39aSJayamohan Kallickal bytes_needed = ((((ppdu->dw[offsetof(struct amap_pdu_base, 13806733b39aSJayamohan Kallickal data_len_hi) / 32] & PDUBASE_DATALENHI_MASK) << 8) & 13816733b39aSJayamohan Kallickal 0xFFFF0000) | ((be16_to_cpu((ppdu-> 13826733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_base, data_len_lo) / 32] 13836733b39aSJayamohan Kallickal & PDUBASE_DATALENLO_MASK) >> 16)) & 0x0000FFFF)); 13846733b39aSJayamohan Kallickal 13856733b39aSJayamohan Kallickal if (status == 0) { 13866733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue.bytes_needed = 13876733b39aSJayamohan Kallickal bytes_needed; 13886733b39aSJayamohan Kallickal 13896733b39aSJayamohan Kallickal if (bytes_needed == 0) 13906733b39aSJayamohan Kallickal status = hwi_fwd_async_msg(beiscsi_conn, phba, 13916733b39aSJayamohan Kallickal pasync_ctx, cri); 13926733b39aSJayamohan Kallickal } 13936733b39aSJayamohan Kallickal } else { 13946733b39aSJayamohan Kallickal pasync_ctx->async_data.busy_entries--; 13956733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) { 13966733b39aSJayamohan Kallickal list_add_tail(&pasync_handle->link, 13976733b39aSJayamohan Kallickal &pasync_ctx->async_entry[cri].wait_queue. 13986733b39aSJayamohan Kallickal list); 13996733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue. 14006733b39aSJayamohan Kallickal bytes_received += 14016733b39aSJayamohan Kallickal (unsigned short)pasync_handle->buffer_len; 14026733b39aSJayamohan Kallickal 14036733b39aSJayamohan Kallickal if (pasync_ctx->async_entry[cri].wait_queue. 14046733b39aSJayamohan Kallickal bytes_received >= 14056733b39aSJayamohan Kallickal pasync_ctx->async_entry[cri].wait_queue. 14066733b39aSJayamohan Kallickal bytes_needed) 14076733b39aSJayamohan Kallickal status = hwi_fwd_async_msg(beiscsi_conn, phba, 14086733b39aSJayamohan Kallickal pasync_ctx, cri); 14096733b39aSJayamohan Kallickal } 14106733b39aSJayamohan Kallickal } 14116733b39aSJayamohan Kallickal return status; 14126733b39aSJayamohan Kallickal } 14136733b39aSJayamohan Kallickal 14146733b39aSJayamohan Kallickal static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn, 14156733b39aSJayamohan Kallickal struct beiscsi_hba *phba, 14166733b39aSJayamohan Kallickal struct i_t_dpdu_cqe *pdpdu_cqe) 14176733b39aSJayamohan Kallickal { 14186733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 14196733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 14206733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_handle = NULL; 14216733b39aSJayamohan Kallickal unsigned int cq_index = -1; 14226733b39aSJayamohan Kallickal 14236733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 14246733b39aSJayamohan Kallickal pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr); 14256733b39aSJayamohan Kallickal pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx, 14266733b39aSJayamohan Kallickal pdpdu_cqe, &cq_index); 14276733b39aSJayamohan Kallickal 14286733b39aSJayamohan Kallickal if (pasync_handle->consumed == 0) 14296733b39aSJayamohan Kallickal hwi_update_async_writables(pasync_ctx, pasync_handle->is_header, 14306733b39aSJayamohan Kallickal cq_index); 14316733b39aSJayamohan Kallickal hwi_gather_async_pdu(beiscsi_conn, phba, pasync_handle); 14326733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, pasync_handle->is_header); 14336733b39aSJayamohan Kallickal } 14346733b39aSJayamohan Kallickal 1435bfead3b2SJayamohan Kallickal 1436bfead3b2SJayamohan Kallickal static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq) 14376733b39aSJayamohan Kallickal { 14386733b39aSJayamohan Kallickal struct be_queue_info *cq; 14396733b39aSJayamohan Kallickal struct sol_cqe *sol; 14406733b39aSJayamohan Kallickal struct dmsg_cqe *dmsg; 14416733b39aSJayamohan Kallickal unsigned int num_processed = 0; 14426733b39aSJayamohan Kallickal unsigned int tot_nump = 0; 14436733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn; 144435e66019SJayamohan Kallickal struct sgl_handle *psgl_handle = NULL; 1445c2462288SJayamohan Kallickal struct beiscsi_endpoint *beiscsi_ep; 1446c2462288SJayamohan Kallickal struct iscsi_endpoint *ep; 1447bfead3b2SJayamohan Kallickal struct beiscsi_hba *phba; 14486733b39aSJayamohan Kallickal 1449bfead3b2SJayamohan Kallickal cq = pbe_eq->cq; 14506733b39aSJayamohan Kallickal sol = queue_tail_node(cq); 1451bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 14526733b39aSJayamohan Kallickal 14536733b39aSJayamohan Kallickal while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] & 14546733b39aSJayamohan Kallickal CQE_VALID_MASK) { 14556733b39aSJayamohan Kallickal be_dws_le_to_cpu(sol, sizeof(struct sol_cqe)); 14566733b39aSJayamohan Kallickal 145735e66019SJayamohan Kallickal if (ring_mode) { 145835e66019SJayamohan Kallickal psgl_handle = phba->sgl_hndl_array[((sol-> 145935e66019SJayamohan Kallickal dw[offsetof(struct amap_sol_cqe_ring, 146035e66019SJayamohan Kallickal icd_index) / 32] & SOL_ICD_INDEX_MASK) 146135e66019SJayamohan Kallickal >> 6)]; 1462c2462288SJayamohan Kallickal ep = phba->ep_array[psgl_handle->cid]; 146335e66019SJayamohan Kallickal } else { 1464c2462288SJayamohan Kallickal ep = phba->ep_array[(u32) ((sol-> 14656733b39aSJayamohan Kallickal dw[offsetof(struct amap_sol_cqe, cid) / 32] & 14667da50879SJayamohan Kallickal SOL_CID_MASK) >> 6) - 14677da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 14686733b39aSJayamohan Kallickal } 1469c2462288SJayamohan Kallickal beiscsi_ep = ep->dd_data; 1470c2462288SJayamohan Kallickal beiscsi_conn = beiscsi_ep->conn; 14716733b39aSJayamohan Kallickal if (num_processed >= 32) { 1472bfead3b2SJayamohan Kallickal hwi_ring_cq_db(phba, cq->id, 14736733b39aSJayamohan Kallickal num_processed, 0, 0); 14746733b39aSJayamohan Kallickal tot_nump += num_processed; 14756733b39aSJayamohan Kallickal num_processed = 0; 14766733b39aSJayamohan Kallickal } 14776733b39aSJayamohan Kallickal 14786733b39aSJayamohan Kallickal switch ((u32) sol->dw[offsetof(struct amap_sol_cqe, code) / 14796733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK) { 14806733b39aSJayamohan Kallickal case SOL_CMD_COMPLETE: 14816733b39aSJayamohan Kallickal hwi_complete_cmd(beiscsi_conn, phba, sol); 14826733b39aSJayamohan Kallickal break; 14836733b39aSJayamohan Kallickal case DRIVERMSG_NOTIFY: 14846733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Received DRIVERMSG_NOTIFY \n"); 14856733b39aSJayamohan Kallickal dmsg = (struct dmsg_cqe *)sol; 14866733b39aSJayamohan Kallickal hwi_complete_drvr_msgs(beiscsi_conn, phba, sol); 14876733b39aSJayamohan Kallickal break; 14886733b39aSJayamohan Kallickal case UNSOL_HDR_NOTIFY: 1489bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Received UNSOL_HDR_ NOTIFY\n"); 1490bfead3b2SJayamohan Kallickal hwi_process_default_pdu_ring(beiscsi_conn, phba, 1491bfead3b2SJayamohan Kallickal (struct i_t_dpdu_cqe *)sol); 1492bfead3b2SJayamohan Kallickal break; 14936733b39aSJayamohan Kallickal case UNSOL_DATA_NOTIFY: 1494bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Received UNSOL_DATA_NOTIFY\n"); 14956733b39aSJayamohan Kallickal hwi_process_default_pdu_ring(beiscsi_conn, phba, 14966733b39aSJayamohan Kallickal (struct i_t_dpdu_cqe *)sol); 14976733b39aSJayamohan Kallickal break; 14986733b39aSJayamohan Kallickal case CXN_INVALIDATE_INDEX_NOTIFY: 14996733b39aSJayamohan Kallickal case CMD_INVALIDATED_NOTIFY: 15006733b39aSJayamohan Kallickal case CXN_INVALIDATE_NOTIFY: 15016733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 15026733b39aSJayamohan Kallickal "Ignoring CQ Error notification for cmd/cxn" 15036733b39aSJayamohan Kallickal "invalidate\n"); 15046733b39aSJayamohan Kallickal break; 15056733b39aSJayamohan Kallickal case SOL_CMD_KILLED_DATA_DIGEST_ERR: 15066733b39aSJayamohan Kallickal case CMD_KILLED_INVALID_STATSN_RCVD: 15076733b39aSJayamohan Kallickal case CMD_KILLED_INVALID_R2T_RCVD: 15086733b39aSJayamohan Kallickal case CMD_CXN_KILLED_LUN_INVALID: 15096733b39aSJayamohan Kallickal case CMD_CXN_KILLED_ICD_INVALID: 15106733b39aSJayamohan Kallickal case CMD_CXN_KILLED_ITT_INVALID: 15116733b39aSJayamohan Kallickal case CMD_CXN_KILLED_SEQ_OUTOFORDER: 15126733b39aSJayamohan Kallickal case CMD_CXN_KILLED_INVALID_DATASN_RCVD: 151335e66019SJayamohan Kallickal if (ring_mode) { 151435e66019SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 151535e66019SJayamohan Kallickal "CQ Error notification for cmd.. " 151635e66019SJayamohan Kallickal "code %d cid 0x%x\n", 151735e66019SJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 151835e66019SJayamohan Kallickal 32] & CQE_CODE_MASK, psgl_handle->cid); 151935e66019SJayamohan Kallickal } else { 15206733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 15216733b39aSJayamohan Kallickal "CQ Error notification for cmd.. " 15226733b39aSJayamohan Kallickal "code %d cid 0x%x\n", 15236733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 15246733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 15256733b39aSJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 15266733b39aSJayamohan Kallickal 32] & SOL_CID_MASK)); 152735e66019SJayamohan Kallickal } 15286733b39aSJayamohan Kallickal break; 15296733b39aSJayamohan Kallickal case UNSOL_DATA_DIGEST_ERROR_NOTIFY: 15306733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 15316733b39aSJayamohan Kallickal "Digest error on def pdu ring, dropping..\n"); 15326733b39aSJayamohan Kallickal hwi_flush_default_pdu_buffer(phba, beiscsi_conn, 15336733b39aSJayamohan Kallickal (struct i_t_dpdu_cqe *) sol); 15346733b39aSJayamohan Kallickal break; 15356733b39aSJayamohan Kallickal case CXN_KILLED_PDU_SIZE_EXCEEDS_DSL: 15366733b39aSJayamohan Kallickal case CXN_KILLED_BURST_LEN_MISMATCH: 15376733b39aSJayamohan Kallickal case CXN_KILLED_AHS_RCVD: 15386733b39aSJayamohan Kallickal case CXN_KILLED_HDR_DIGEST_ERR: 15396733b39aSJayamohan Kallickal case CXN_KILLED_UNKNOWN_HDR: 15406733b39aSJayamohan Kallickal case CXN_KILLED_STALE_ITT_TTT_RCVD: 15416733b39aSJayamohan Kallickal case CXN_KILLED_INVALID_ITT_TTT_RCVD: 15426733b39aSJayamohan Kallickal case CXN_KILLED_TIMED_OUT: 15436733b39aSJayamohan Kallickal case CXN_KILLED_FIN_RCVD: 15446733b39aSJayamohan Kallickal case CXN_KILLED_BAD_UNSOL_PDU_RCVD: 15456733b39aSJayamohan Kallickal case CXN_KILLED_BAD_WRB_INDEX_ERROR: 15466733b39aSJayamohan Kallickal case CXN_KILLED_OVER_RUN_RESIDUAL: 15476733b39aSJayamohan Kallickal case CXN_KILLED_UNDER_RUN_RESIDUAL: 15486733b39aSJayamohan Kallickal case CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN: 154935e66019SJayamohan Kallickal if (ring_mode) { 155035e66019SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset CID " 155135e66019SJayamohan Kallickal "0x%x...\n", 155235e66019SJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 155335e66019SJayamohan Kallickal 32] & CQE_CODE_MASK, psgl_handle->cid); 155435e66019SJayamohan Kallickal } else { 1555bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset CID " 15566733b39aSJayamohan Kallickal "0x%x...\n", 15576733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 15586733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 15597da50879SJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 15607da50879SJayamohan Kallickal 32] & CQE_CID_MASK)); 156135e66019SJayamohan Kallickal } 15626733b39aSJayamohan Kallickal iscsi_conn_failure(beiscsi_conn->conn, 15636733b39aSJayamohan Kallickal ISCSI_ERR_CONN_FAILED); 15646733b39aSJayamohan Kallickal break; 15656733b39aSJayamohan Kallickal case CXN_KILLED_RST_SENT: 15666733b39aSJayamohan Kallickal case CXN_KILLED_RST_RCVD: 156735e66019SJayamohan Kallickal if (ring_mode) { 156835e66019SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset" 156935e66019SJayamohan Kallickal "received/sent on CID 0x%x...\n", 157035e66019SJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 157135e66019SJayamohan Kallickal 32] & CQE_CODE_MASK, psgl_handle->cid); 157235e66019SJayamohan Kallickal } else { 1573bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset" 1574bfead3b2SJayamohan Kallickal "received/sent on CID 0x%x...\n", 15756733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 15766733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 15777da50879SJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 15787da50879SJayamohan Kallickal 32] & CQE_CID_MASK)); 157935e66019SJayamohan Kallickal } 15806733b39aSJayamohan Kallickal iscsi_conn_failure(beiscsi_conn->conn, 15816733b39aSJayamohan Kallickal ISCSI_ERR_CONN_FAILED); 15826733b39aSJayamohan Kallickal break; 15836733b39aSJayamohan Kallickal default: 15846733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "CQ Error Invalid code= %d " 15856733b39aSJayamohan Kallickal "received on CID 0x%x...\n", 15866733b39aSJayamohan Kallickal sol->dw[offsetof(struct amap_sol_cqe, code) / 15876733b39aSJayamohan Kallickal 32] & CQE_CODE_MASK, 15887da50879SJayamohan Kallickal (sol->dw[offsetof(struct amap_sol_cqe, cid) / 15897da50879SJayamohan Kallickal 32] & CQE_CID_MASK)); 15906733b39aSJayamohan Kallickal break; 15916733b39aSJayamohan Kallickal } 15926733b39aSJayamohan Kallickal 15936733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_sol_cqe, valid, sol, 0); 15946733b39aSJayamohan Kallickal queue_tail_inc(cq); 15956733b39aSJayamohan Kallickal sol = queue_tail_node(cq); 15966733b39aSJayamohan Kallickal num_processed++; 15976733b39aSJayamohan Kallickal } 15986733b39aSJayamohan Kallickal 15996733b39aSJayamohan Kallickal if (num_processed > 0) { 16006733b39aSJayamohan Kallickal tot_nump += num_processed; 1601bfead3b2SJayamohan Kallickal hwi_ring_cq_db(phba, cq->id, num_processed, 1, 0); 16026733b39aSJayamohan Kallickal } 16036733b39aSJayamohan Kallickal return tot_nump; 16046733b39aSJayamohan Kallickal } 16056733b39aSJayamohan Kallickal 16066733b39aSJayamohan Kallickal static void beiscsi_process_all_cqs(struct work_struct *work) 16076733b39aSJayamohan Kallickal { 16086733b39aSJayamohan Kallickal unsigned long flags; 1609bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 1610bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 1611bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 16126733b39aSJayamohan Kallickal struct beiscsi_hba *phba = 16136733b39aSJayamohan Kallickal container_of(work, struct beiscsi_hba, work_cqs); 16146733b39aSJayamohan Kallickal 1615bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 1616bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 1617bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 1618bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[phba->num_cpus]; 1619bfead3b2SJayamohan Kallickal else 1620bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[0]; 1621bfead3b2SJayamohan Kallickal 16226733b39aSJayamohan Kallickal if (phba->todo_mcc_cq) { 16236733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 16246733b39aSJayamohan Kallickal phba->todo_mcc_cq = 0; 16256733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 16266733b39aSJayamohan Kallickal } 16276733b39aSJayamohan Kallickal 16286733b39aSJayamohan Kallickal if (phba->todo_cq) { 16296733b39aSJayamohan Kallickal spin_lock_irqsave(&phba->isr_lock, flags); 16306733b39aSJayamohan Kallickal phba->todo_cq = 0; 16316733b39aSJayamohan Kallickal spin_unlock_irqrestore(&phba->isr_lock, flags); 1632bfead3b2SJayamohan Kallickal beiscsi_process_cq(pbe_eq); 16336733b39aSJayamohan Kallickal } 16346733b39aSJayamohan Kallickal } 16356733b39aSJayamohan Kallickal 16366733b39aSJayamohan Kallickal static int be_iopoll(struct blk_iopoll *iop, int budget) 16376733b39aSJayamohan Kallickal { 16386733b39aSJayamohan Kallickal static unsigned int ret; 16396733b39aSJayamohan Kallickal struct beiscsi_hba *phba; 1640bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 16416733b39aSJayamohan Kallickal 1642bfead3b2SJayamohan Kallickal pbe_eq = container_of(iop, struct be_eq_obj, iopoll); 1643bfead3b2SJayamohan Kallickal ret = beiscsi_process_cq(pbe_eq); 16446733b39aSJayamohan Kallickal if (ret < budget) { 1645bfead3b2SJayamohan Kallickal phba = pbe_eq->phba; 16466733b39aSJayamohan Kallickal blk_iopoll_complete(iop); 1647bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "rearm pbe_eq->q.id =%d\n", pbe_eq->q.id); 1648bfead3b2SJayamohan Kallickal hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1); 16496733b39aSJayamohan Kallickal } 16506733b39aSJayamohan Kallickal return ret; 16516733b39aSJayamohan Kallickal } 16526733b39aSJayamohan Kallickal 16536733b39aSJayamohan Kallickal static void 16546733b39aSJayamohan Kallickal hwi_write_sgl(struct iscsi_wrb *pwrb, struct scatterlist *sg, 16556733b39aSJayamohan Kallickal unsigned int num_sg, struct beiscsi_io_task *io_task) 16566733b39aSJayamohan Kallickal { 16576733b39aSJayamohan Kallickal struct iscsi_sge *psgl; 16586733b39aSJayamohan Kallickal unsigned short sg_len, index; 16596733b39aSJayamohan Kallickal unsigned int sge_len = 0; 16606733b39aSJayamohan Kallickal unsigned long long addr; 16616733b39aSJayamohan Kallickal struct scatterlist *l_sg; 16626733b39aSJayamohan Kallickal unsigned int offset; 16636733b39aSJayamohan Kallickal 16646733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb, 16656733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 16666733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb, 16676733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 16686733b39aSJayamohan Kallickal 16696733b39aSJayamohan Kallickal l_sg = sg; 16706733b39aSJayamohan Kallickal for (index = 0; (index < num_sg) && (index < 2); index++, sg_next(sg)) { 16716733b39aSJayamohan Kallickal if (index == 0) { 16726733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 16736733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 16746733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb, 16756733b39aSJayamohan Kallickal (addr & 0xFFFFFFFF)); 16766733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb, 16776733b39aSJayamohan Kallickal (addr >> 32)); 16786733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb, 16796733b39aSJayamohan Kallickal sg_len); 16806733b39aSJayamohan Kallickal sge_len = sg_len; 16816733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 16826733b39aSJayamohan Kallickal 1); 16836733b39aSJayamohan Kallickal } else { 16846733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 16856733b39aSJayamohan Kallickal 0); 16866733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_r2t_offset, 16876733b39aSJayamohan Kallickal pwrb, sge_len); 16886733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 16896733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 16906733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_lo, pwrb, 16916733b39aSJayamohan Kallickal (addr & 0xFFFFFFFF)); 16926733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_hi, pwrb, 16936733b39aSJayamohan Kallickal (addr >> 32)); 16946733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_len, pwrb, 16956733b39aSJayamohan Kallickal sg_len); 16966733b39aSJayamohan Kallickal } 16976733b39aSJayamohan Kallickal } 16986733b39aSJayamohan Kallickal psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 16996733b39aSJayamohan Kallickal memset(psgl, 0, sizeof(*psgl) * BE2_SGE); 17006733b39aSJayamohan Kallickal 17016733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2); 17026733b39aSJayamohan Kallickal 17036733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 17046733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 17056733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 17066733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 17076733b39aSJayamohan Kallickal 17086733b39aSJayamohan Kallickal if (num_sg == 2) 17096733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 1); 17106733b39aSJayamohan Kallickal sg = l_sg; 17116733b39aSJayamohan Kallickal psgl++; 17126733b39aSJayamohan Kallickal psgl++; 17136733b39aSJayamohan Kallickal offset = 0; 17146733b39aSJayamohan Kallickal for (index = 0; index < num_sg; index++, sg_next(sg), psgl++) { 17156733b39aSJayamohan Kallickal sg_len = sg_dma_len(sg); 17166733b39aSJayamohan Kallickal addr = (u64) sg_dma_address(sg); 17176733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 17186733b39aSJayamohan Kallickal (addr & 0xFFFFFFFF)); 17196733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 17206733b39aSJayamohan Kallickal (addr >> 32)); 17216733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len); 17226733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset); 17236733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 17246733b39aSJayamohan Kallickal offset += sg_len; 17256733b39aSJayamohan Kallickal } 17266733b39aSJayamohan Kallickal psgl--; 17276733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 17286733b39aSJayamohan Kallickal } 17296733b39aSJayamohan Kallickal 17306733b39aSJayamohan Kallickal static void hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task) 17316733b39aSJayamohan Kallickal { 17326733b39aSJayamohan Kallickal struct iscsi_sge *psgl; 17336733b39aSJayamohan Kallickal unsigned long long addr; 17346733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 17356733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = io_task->conn; 17366733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 17376733b39aSJayamohan Kallickal 17386733b39aSJayamohan Kallickal io_task->bhs_len = sizeof(struct be_nonio_bhs) - 2; 17396733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb, 17406733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 17416733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb, 17426733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 17436733b39aSJayamohan Kallickal 17446733b39aSJayamohan Kallickal if (task->data) { 17456733b39aSJayamohan Kallickal if (task->data_count) { 17466733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1); 17476733b39aSJayamohan Kallickal addr = (u64) pci_map_single(phba->pcidev, 17486733b39aSJayamohan Kallickal task->data, 17496733b39aSJayamohan Kallickal task->data_count, 1); 17506733b39aSJayamohan Kallickal } else { 17516733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 17526733b39aSJayamohan Kallickal addr = 0; 17536733b39aSJayamohan Kallickal } 17546733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb, 17556733b39aSJayamohan Kallickal (addr & 0xFFFFFFFF)); 17566733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb, 17576733b39aSJayamohan Kallickal (addr >> 32)); 17586733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb, 17596733b39aSJayamohan Kallickal task->data_count); 17606733b39aSJayamohan Kallickal 17616733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1); 17626733b39aSJayamohan Kallickal } else { 17636733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 17646733b39aSJayamohan Kallickal addr = 0; 17656733b39aSJayamohan Kallickal } 17666733b39aSJayamohan Kallickal 17676733b39aSJayamohan Kallickal psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag; 17686733b39aSJayamohan Kallickal 17696733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len); 17706733b39aSJayamohan Kallickal 17716733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 17726733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_hi); 17736733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 17746733b39aSJayamohan Kallickal io_task->bhs_pa.u.a32.address_lo); 17756733b39aSJayamohan Kallickal if (task->data) { 17766733b39aSJayamohan Kallickal psgl++; 17776733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 0); 17786733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 0); 17796733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0); 17806733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, 0); 17816733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, rsvd0, psgl, 0); 17826733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0); 17836733b39aSJayamohan Kallickal 17846733b39aSJayamohan Kallickal psgl++; 17856733b39aSJayamohan Kallickal if (task->data) { 17866733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 17876733b39aSJayamohan Kallickal (addr & 0xFFFFFFFF)); 17886733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 17896733b39aSJayamohan Kallickal (addr >> 32)); 17906733b39aSJayamohan Kallickal } 17916733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0x106); 17926733b39aSJayamohan Kallickal } 17936733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1); 17946733b39aSJayamohan Kallickal } 17956733b39aSJayamohan Kallickal 17966733b39aSJayamohan Kallickal static void beiscsi_find_mem_req(struct beiscsi_hba *phba) 17976733b39aSJayamohan Kallickal { 1798bfead3b2SJayamohan Kallickal unsigned int num_cq_pages, num_async_pdu_buf_pages; 17996733b39aSJayamohan Kallickal unsigned int num_async_pdu_data_pages, wrb_sz_per_cxn; 18006733b39aSJayamohan Kallickal unsigned int num_async_pdu_buf_sgl_pages, num_async_pdu_data_sgl_pages; 18016733b39aSJayamohan Kallickal 18026733b39aSJayamohan Kallickal num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \ 18036733b39aSJayamohan Kallickal sizeof(struct sol_cqe)); 18046733b39aSJayamohan Kallickal num_async_pdu_buf_pages = 18056733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 18066733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz); 18076733b39aSJayamohan Kallickal num_async_pdu_buf_sgl_pages = 18086733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 18096733b39aSJayamohan Kallickal sizeof(struct phys_addr)); 18106733b39aSJayamohan Kallickal num_async_pdu_data_pages = 18116733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 18126733b39aSJayamohan Kallickal phba->params.defpdu_data_sz); 18136733b39aSJayamohan Kallickal num_async_pdu_data_sgl_pages = 18146733b39aSJayamohan Kallickal PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \ 18156733b39aSJayamohan Kallickal sizeof(struct phys_addr)); 18166733b39aSJayamohan Kallickal 18176733b39aSJayamohan Kallickal phba->params.hwi_ws_sz = sizeof(struct hwi_controller); 18186733b39aSJayamohan Kallickal 18196733b39aSJayamohan Kallickal phba->mem_req[ISCSI_MEM_GLOBAL_HEADER] = 2 * 18206733b39aSJayamohan Kallickal BE_ISCSI_PDU_HEADER_SIZE; 18216733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ADDN_CONTEXT] = 18226733b39aSJayamohan Kallickal sizeof(struct hwi_context_memory); 18236733b39aSJayamohan Kallickal 18246733b39aSJayamohan Kallickal 18256733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_WRB] = sizeof(struct iscsi_wrb) 18266733b39aSJayamohan Kallickal * (phba->params.wrbs_per_cxn) 18276733b39aSJayamohan Kallickal * phba->params.cxns_per_ctrl; 18286733b39aSJayamohan Kallickal wrb_sz_per_cxn = sizeof(struct wrb_handle) * 18296733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn); 18306733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_WRBH] = roundup_pow_of_two((wrb_sz_per_cxn) * 18316733b39aSJayamohan Kallickal phba->params.cxns_per_ctrl); 18326733b39aSJayamohan Kallickal 18336733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_SGLH] = sizeof(struct sgl_handle) * 18346733b39aSJayamohan Kallickal phba->params.icds_per_ctrl; 18356733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_SGE] = sizeof(struct iscsi_sge) * 18366733b39aSJayamohan Kallickal phba->params.num_sge_per_io * phba->params.icds_per_ctrl; 18376733b39aSJayamohan Kallickal 18386733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_HEADER_BUF] = 18396733b39aSJayamohan Kallickal num_async_pdu_buf_pages * PAGE_SIZE; 18406733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_DATA_BUF] = 18416733b39aSJayamohan Kallickal num_async_pdu_data_pages * PAGE_SIZE; 18426733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_HEADER_RING] = 18436733b39aSJayamohan Kallickal num_async_pdu_buf_sgl_pages * PAGE_SIZE; 18446733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_DATA_RING] = 18456733b39aSJayamohan Kallickal num_async_pdu_data_sgl_pages * PAGE_SIZE; 18466733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_HEADER_HANDLE] = 18476733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl * 18486733b39aSJayamohan Kallickal sizeof(struct async_pdu_handle); 18496733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_DATA_HANDLE] = 18506733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl * 18516733b39aSJayamohan Kallickal sizeof(struct async_pdu_handle); 18526733b39aSJayamohan Kallickal phba->mem_req[HWI_MEM_ASYNC_PDU_CONTEXT] = 18536733b39aSJayamohan Kallickal sizeof(struct hwi_async_pdu_context) + 18546733b39aSJayamohan Kallickal (phba->params.cxns_per_ctrl * sizeof(struct hwi_async_entry)); 18556733b39aSJayamohan Kallickal } 18566733b39aSJayamohan Kallickal 18576733b39aSJayamohan Kallickal static int beiscsi_alloc_mem(struct beiscsi_hba *phba) 18586733b39aSJayamohan Kallickal { 18596733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 18606733b39aSJayamohan Kallickal dma_addr_t bus_add; 18616733b39aSJayamohan Kallickal struct mem_array *mem_arr, *mem_arr_orig; 18626733b39aSJayamohan Kallickal unsigned int i, j, alloc_size, curr_alloc_size; 18636733b39aSJayamohan Kallickal 18646733b39aSJayamohan Kallickal phba->phwi_ctrlr = kmalloc(phba->params.hwi_ws_sz, GFP_KERNEL); 18656733b39aSJayamohan Kallickal if (!phba->phwi_ctrlr) 18666733b39aSJayamohan Kallickal return -ENOMEM; 18676733b39aSJayamohan Kallickal 18686733b39aSJayamohan Kallickal phba->init_mem = kcalloc(SE_MEM_MAX, sizeof(*mem_descr), 18696733b39aSJayamohan Kallickal GFP_KERNEL); 18706733b39aSJayamohan Kallickal if (!phba->init_mem) { 18716733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 18726733b39aSJayamohan Kallickal return -ENOMEM; 18736733b39aSJayamohan Kallickal } 18746733b39aSJayamohan Kallickal 18756733b39aSJayamohan Kallickal mem_arr_orig = kmalloc(sizeof(*mem_arr_orig) * BEISCSI_MAX_FRAGS_INIT, 18766733b39aSJayamohan Kallickal GFP_KERNEL); 18776733b39aSJayamohan Kallickal if (!mem_arr_orig) { 18786733b39aSJayamohan Kallickal kfree(phba->init_mem); 18796733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 18806733b39aSJayamohan Kallickal return -ENOMEM; 18816733b39aSJayamohan Kallickal } 18826733b39aSJayamohan Kallickal 18836733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 18846733b39aSJayamohan Kallickal for (i = 0; i < SE_MEM_MAX; i++) { 18856733b39aSJayamohan Kallickal j = 0; 18866733b39aSJayamohan Kallickal mem_arr = mem_arr_orig; 18876733b39aSJayamohan Kallickal alloc_size = phba->mem_req[i]; 18886733b39aSJayamohan Kallickal memset(mem_arr, 0, sizeof(struct mem_array) * 18896733b39aSJayamohan Kallickal BEISCSI_MAX_FRAGS_INIT); 18906733b39aSJayamohan Kallickal curr_alloc_size = min(be_max_phys_size * 1024, alloc_size); 18916733b39aSJayamohan Kallickal do { 18926733b39aSJayamohan Kallickal mem_arr->virtual_address = pci_alloc_consistent( 18936733b39aSJayamohan Kallickal phba->pcidev, 18946733b39aSJayamohan Kallickal curr_alloc_size, 18956733b39aSJayamohan Kallickal &bus_add); 18966733b39aSJayamohan Kallickal if (!mem_arr->virtual_address) { 18976733b39aSJayamohan Kallickal if (curr_alloc_size <= BE_MIN_MEM_SIZE) 18986733b39aSJayamohan Kallickal goto free_mem; 18996733b39aSJayamohan Kallickal if (curr_alloc_size - 19006733b39aSJayamohan Kallickal rounddown_pow_of_two(curr_alloc_size)) 19016733b39aSJayamohan Kallickal curr_alloc_size = rounddown_pow_of_two 19026733b39aSJayamohan Kallickal (curr_alloc_size); 19036733b39aSJayamohan Kallickal else 19046733b39aSJayamohan Kallickal curr_alloc_size = curr_alloc_size / 2; 19056733b39aSJayamohan Kallickal } else { 19066733b39aSJayamohan Kallickal mem_arr->bus_address.u. 19076733b39aSJayamohan Kallickal a64.address = (__u64) bus_add; 19086733b39aSJayamohan Kallickal mem_arr->size = curr_alloc_size; 19096733b39aSJayamohan Kallickal alloc_size -= curr_alloc_size; 19106733b39aSJayamohan Kallickal curr_alloc_size = min(be_max_phys_size * 19116733b39aSJayamohan Kallickal 1024, alloc_size); 19126733b39aSJayamohan Kallickal j++; 19136733b39aSJayamohan Kallickal mem_arr++; 19146733b39aSJayamohan Kallickal } 19156733b39aSJayamohan Kallickal } while (alloc_size); 19166733b39aSJayamohan Kallickal mem_descr->num_elements = j; 19176733b39aSJayamohan Kallickal mem_descr->size_in_bytes = phba->mem_req[i]; 19186733b39aSJayamohan Kallickal mem_descr->mem_array = kmalloc(sizeof(*mem_arr) * j, 19196733b39aSJayamohan Kallickal GFP_KERNEL); 19206733b39aSJayamohan Kallickal if (!mem_descr->mem_array) 19216733b39aSJayamohan Kallickal goto free_mem; 19226733b39aSJayamohan Kallickal 19236733b39aSJayamohan Kallickal memcpy(mem_descr->mem_array, mem_arr_orig, 19246733b39aSJayamohan Kallickal sizeof(struct mem_array) * j); 19256733b39aSJayamohan Kallickal mem_descr++; 19266733b39aSJayamohan Kallickal } 19276733b39aSJayamohan Kallickal kfree(mem_arr_orig); 19286733b39aSJayamohan Kallickal return 0; 19296733b39aSJayamohan Kallickal free_mem: 19306733b39aSJayamohan Kallickal mem_descr->num_elements = j; 19316733b39aSJayamohan Kallickal while ((i) || (j)) { 19326733b39aSJayamohan Kallickal for (j = mem_descr->num_elements; j > 0; j--) { 19336733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 19346733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].size, 19356733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1]. 19366733b39aSJayamohan Kallickal virtual_address, 19376733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1]. 19386733b39aSJayamohan Kallickal bus_address.u.a64.address); 19396733b39aSJayamohan Kallickal } 19406733b39aSJayamohan Kallickal if (i) { 19416733b39aSJayamohan Kallickal i--; 19426733b39aSJayamohan Kallickal kfree(mem_descr->mem_array); 19436733b39aSJayamohan Kallickal mem_descr--; 19446733b39aSJayamohan Kallickal } 19456733b39aSJayamohan Kallickal } 19466733b39aSJayamohan Kallickal kfree(mem_arr_orig); 19476733b39aSJayamohan Kallickal kfree(phba->init_mem); 19486733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 19496733b39aSJayamohan Kallickal return -ENOMEM; 19506733b39aSJayamohan Kallickal } 19516733b39aSJayamohan Kallickal 19526733b39aSJayamohan Kallickal static int beiscsi_get_memory(struct beiscsi_hba *phba) 19536733b39aSJayamohan Kallickal { 19546733b39aSJayamohan Kallickal beiscsi_find_mem_req(phba); 19556733b39aSJayamohan Kallickal return beiscsi_alloc_mem(phba); 19566733b39aSJayamohan Kallickal } 19576733b39aSJayamohan Kallickal 19586733b39aSJayamohan Kallickal static void iscsi_init_global_templates(struct beiscsi_hba *phba) 19596733b39aSJayamohan Kallickal { 19606733b39aSJayamohan Kallickal struct pdu_data_out *pdata_out; 19616733b39aSJayamohan Kallickal struct pdu_nop_out *pnop_out; 19626733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 19636733b39aSJayamohan Kallickal 19646733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 19656733b39aSJayamohan Kallickal mem_descr += ISCSI_MEM_GLOBAL_HEADER; 19666733b39aSJayamohan Kallickal pdata_out = 19676733b39aSJayamohan Kallickal (struct pdu_data_out *)mem_descr->mem_array[0].virtual_address; 19686733b39aSJayamohan Kallickal memset(pdata_out, 0, BE_ISCSI_PDU_HEADER_SIZE); 19696733b39aSJayamohan Kallickal 19706733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, opcode, pdata_out, 19716733b39aSJayamohan Kallickal IIOC_SCSI_DATA); 19726733b39aSJayamohan Kallickal 19736733b39aSJayamohan Kallickal pnop_out = 19746733b39aSJayamohan Kallickal (struct pdu_nop_out *)((unsigned char *)mem_descr->mem_array[0]. 19756733b39aSJayamohan Kallickal virtual_address + BE_ISCSI_PDU_HEADER_SIZE); 19766733b39aSJayamohan Kallickal 19776733b39aSJayamohan Kallickal memset(pnop_out, 0, BE_ISCSI_PDU_HEADER_SIZE); 19786733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, ttt, pnop_out, 0xFFFFFFFF); 19796733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, f_bit, pnop_out, 1); 19806733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_nop_out, i_bit, pnop_out, 0); 19816733b39aSJayamohan Kallickal } 19826733b39aSJayamohan Kallickal 19836733b39aSJayamohan Kallickal static void beiscsi_init_wrb_handle(struct beiscsi_hba *phba) 19846733b39aSJayamohan Kallickal { 19856733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr_wrbh, *mem_descr_wrb; 19866733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 19876733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 19886733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 19896733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb; 19906733b39aSJayamohan Kallickal unsigned int num_cxn_wrbh; 19916733b39aSJayamohan Kallickal unsigned int num_cxn_wrb, j, idx, index; 19926733b39aSJayamohan Kallickal 19936733b39aSJayamohan Kallickal mem_descr_wrbh = phba->init_mem; 19946733b39aSJayamohan Kallickal mem_descr_wrbh += HWI_MEM_WRBH; 19956733b39aSJayamohan Kallickal 19966733b39aSJayamohan Kallickal mem_descr_wrb = phba->init_mem; 19976733b39aSJayamohan Kallickal mem_descr_wrb += HWI_MEM_WRB; 19986733b39aSJayamohan Kallickal 19996733b39aSJayamohan Kallickal idx = 0; 20006733b39aSJayamohan Kallickal pwrb_handle = mem_descr_wrbh->mem_array[idx].virtual_address; 20016733b39aSJayamohan Kallickal num_cxn_wrbh = ((mem_descr_wrbh->mem_array[idx].size) / 20026733b39aSJayamohan Kallickal ((sizeof(struct wrb_handle)) * 20036733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn)); 20046733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 20056733b39aSJayamohan Kallickal 20066733b39aSJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) { 20076733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 20086733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base = 20096733b39aSJayamohan Kallickal kzalloc(sizeof(struct wrb_handle *) * 20106733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn, GFP_KERNEL); 20116733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd = 20126733b39aSJayamohan Kallickal kzalloc(sizeof(struct wrb_handle *) * 20136733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn, GFP_KERNEL); 20146733b39aSJayamohan Kallickal if (num_cxn_wrbh) { 20156733b39aSJayamohan Kallickal pwrb_context->alloc_index = 0; 20166733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available = 0; 20176733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 20186733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base[j] = pwrb_handle; 20196733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd[j] = 20206733b39aSJayamohan Kallickal pwrb_handle; 20216733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available++; 2022bfead3b2SJayamohan Kallickal pwrb_handle->wrb_index = j; 20236733b39aSJayamohan Kallickal pwrb_handle++; 20246733b39aSJayamohan Kallickal } 20256733b39aSJayamohan Kallickal pwrb_context->free_index = 0; 20266733b39aSJayamohan Kallickal num_cxn_wrbh--; 20276733b39aSJayamohan Kallickal } else { 20286733b39aSJayamohan Kallickal idx++; 20296733b39aSJayamohan Kallickal pwrb_handle = 20306733b39aSJayamohan Kallickal mem_descr_wrbh->mem_array[idx].virtual_address; 20316733b39aSJayamohan Kallickal num_cxn_wrbh = 20326733b39aSJayamohan Kallickal ((mem_descr_wrbh->mem_array[idx].size) / 20336733b39aSJayamohan Kallickal ((sizeof(struct wrb_handle)) * 20346733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn)); 20356733b39aSJayamohan Kallickal pwrb_context->alloc_index = 0; 20366733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 20376733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_base[j] = pwrb_handle; 20386733b39aSJayamohan Kallickal pwrb_context->pwrb_handle_basestd[j] = 20396733b39aSJayamohan Kallickal pwrb_handle; 20406733b39aSJayamohan Kallickal pwrb_context->wrb_handles_available++; 2041bfead3b2SJayamohan Kallickal pwrb_handle->wrb_index = j; 20426733b39aSJayamohan Kallickal pwrb_handle++; 20436733b39aSJayamohan Kallickal } 20446733b39aSJayamohan Kallickal pwrb_context->free_index = 0; 20456733b39aSJayamohan Kallickal num_cxn_wrbh--; 20466733b39aSJayamohan Kallickal } 20476733b39aSJayamohan Kallickal } 20486733b39aSJayamohan Kallickal idx = 0; 20496733b39aSJayamohan Kallickal pwrb = mem_descr_wrb->mem_array[idx].virtual_address; 20506733b39aSJayamohan Kallickal num_cxn_wrb = 20516733b39aSJayamohan Kallickal ((mem_descr_wrb->mem_array[idx].size) / (sizeof(struct iscsi_wrb)) * 20526733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn); 20536733b39aSJayamohan Kallickal 20546733b39aSJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl; index += 2) { 20556733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 20566733b39aSJayamohan Kallickal if (num_cxn_wrb) { 20576733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 20586733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[j]; 20596733b39aSJayamohan Kallickal pwrb_handle->pwrb = pwrb; 20606733b39aSJayamohan Kallickal pwrb++; 20616733b39aSJayamohan Kallickal } 20626733b39aSJayamohan Kallickal num_cxn_wrb--; 20636733b39aSJayamohan Kallickal } else { 20646733b39aSJayamohan Kallickal idx++; 20656733b39aSJayamohan Kallickal pwrb = mem_descr_wrb->mem_array[idx].virtual_address; 20666733b39aSJayamohan Kallickal num_cxn_wrb = ((mem_descr_wrb->mem_array[idx].size) / 20676733b39aSJayamohan Kallickal (sizeof(struct iscsi_wrb)) * 20686733b39aSJayamohan Kallickal phba->params.wrbs_per_cxn); 20696733b39aSJayamohan Kallickal for (j = 0; j < phba->params.wrbs_per_cxn; j++) { 20706733b39aSJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_base[j]; 20716733b39aSJayamohan Kallickal pwrb_handle->pwrb = pwrb; 20726733b39aSJayamohan Kallickal pwrb++; 20736733b39aSJayamohan Kallickal } 20746733b39aSJayamohan Kallickal num_cxn_wrb--; 20756733b39aSJayamohan Kallickal } 20766733b39aSJayamohan Kallickal } 20776733b39aSJayamohan Kallickal } 20786733b39aSJayamohan Kallickal 20796733b39aSJayamohan Kallickal static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba) 20806733b39aSJayamohan Kallickal { 20816733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 20826733b39aSJayamohan Kallickal struct hba_parameters *p = &phba->params; 20836733b39aSJayamohan Kallickal struct hwi_async_pdu_context *pasync_ctx; 20846733b39aSJayamohan Kallickal struct async_pdu_handle *pasync_header_h, *pasync_data_h; 20856733b39aSJayamohan Kallickal unsigned int index; 20866733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 20876733b39aSJayamohan Kallickal 20886733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 20896733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_PDU_CONTEXT; 20906733b39aSJayamohan Kallickal 20916733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 20926733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt->pasync_ctx = (struct hwi_async_pdu_context *) 20936733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 20946733b39aSJayamohan Kallickal pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx; 20956733b39aSJayamohan Kallickal memset(pasync_ctx, 0, sizeof(*pasync_ctx)); 20966733b39aSJayamohan Kallickal 20976733b39aSJayamohan Kallickal pasync_ctx->async_header.num_entries = p->asyncpdus_per_ctrl; 20986733b39aSJayamohan Kallickal pasync_ctx->async_header.buffer_size = p->defpdu_hdr_sz; 20996733b39aSJayamohan Kallickal pasync_ctx->async_data.buffer_size = p->defpdu_data_sz; 21006733b39aSJayamohan Kallickal pasync_ctx->async_data.num_entries = p->asyncpdus_per_ctrl; 21016733b39aSJayamohan Kallickal 21026733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 21036733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_BUF; 21046733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 21056733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 21066733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_BUF" 21076733b39aSJayamohan Kallickal "va=%p \n", mem_descr->mem_array[0].virtual_address); 21086733b39aSJayamohan Kallickal } else 21096733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 21106733b39aSJayamohan Kallickal "No Virtual address \n"); 21116733b39aSJayamohan Kallickal 21126733b39aSJayamohan Kallickal pasync_ctx->async_header.va_base = 21136733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 21146733b39aSJayamohan Kallickal 21156733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address = 21166733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a64.address; 21176733b39aSJayamohan Kallickal 21186733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 21196733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_RING; 21206733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 21216733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 21226733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_RING" 21236733b39aSJayamohan Kallickal "va=%p \n", mem_descr->mem_array[0].virtual_address); 21246733b39aSJayamohan Kallickal } else 21256733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 21266733b39aSJayamohan Kallickal "No Virtual address \n"); 21276733b39aSJayamohan Kallickal pasync_ctx->async_header.ring_base = 21286733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 21296733b39aSJayamohan Kallickal 21306733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 21316733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE; 21326733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 21336733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 21346733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_HANDLE" 21356733b39aSJayamohan Kallickal "va=%p \n", mem_descr->mem_array[0].virtual_address); 21366733b39aSJayamohan Kallickal } else 21376733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 21386733b39aSJayamohan Kallickal "No Virtual address \n"); 21396733b39aSJayamohan Kallickal 21406733b39aSJayamohan Kallickal pasync_ctx->async_header.handle_base = 21416733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 21426733b39aSJayamohan Kallickal pasync_ctx->async_header.writables = 0; 21436733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_header.free_list); 21446733b39aSJayamohan Kallickal 21456733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 21466733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_BUF; 21476733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 21486733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 21496733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_BUF" 21506733b39aSJayamohan Kallickal "va=%p \n", mem_descr->mem_array[0].virtual_address); 21516733b39aSJayamohan Kallickal } else 21526733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 21536733b39aSJayamohan Kallickal "No Virtual address \n"); 21546733b39aSJayamohan Kallickal pasync_ctx->async_data.va_base = 21556733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 21566733b39aSJayamohan Kallickal pasync_ctx->async_data.pa_base.u.a64.address = 21576733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a64.address; 21586733b39aSJayamohan Kallickal 21596733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 21606733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_RING; 21616733b39aSJayamohan Kallickal if (mem_descr->mem_array[0].virtual_address) { 21626733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 21636733b39aSJayamohan Kallickal "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_RING" 21646733b39aSJayamohan Kallickal "va=%p \n", mem_descr->mem_array[0].virtual_address); 21656733b39aSJayamohan Kallickal } else 21666733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 21676733b39aSJayamohan Kallickal "No Virtual address \n"); 21686733b39aSJayamohan Kallickal 21696733b39aSJayamohan Kallickal pasync_ctx->async_data.ring_base = 21706733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 21716733b39aSJayamohan Kallickal 21726733b39aSJayamohan Kallickal mem_descr = (struct be_mem_descriptor *)phba->init_mem; 21736733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_HANDLE; 21746733b39aSJayamohan Kallickal if (!mem_descr->mem_array[0].virtual_address) 21756733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 21766733b39aSJayamohan Kallickal "No Virtual address \n"); 21776733b39aSJayamohan Kallickal 21786733b39aSJayamohan Kallickal pasync_ctx->async_data.handle_base = 21796733b39aSJayamohan Kallickal mem_descr->mem_array[0].virtual_address; 21806733b39aSJayamohan Kallickal pasync_ctx->async_data.writables = 0; 21816733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_data.free_list); 21826733b39aSJayamohan Kallickal 21836733b39aSJayamohan Kallickal pasync_header_h = 21846733b39aSJayamohan Kallickal (struct async_pdu_handle *)pasync_ctx->async_header.handle_base; 21856733b39aSJayamohan Kallickal pasync_data_h = 21866733b39aSJayamohan Kallickal (struct async_pdu_handle *)pasync_ctx->async_data.handle_base; 21876733b39aSJayamohan Kallickal 21886733b39aSJayamohan Kallickal for (index = 0; index < p->asyncpdus_per_ctrl; index++) { 21896733b39aSJayamohan Kallickal pasync_header_h->cri = -1; 21906733b39aSJayamohan Kallickal pasync_header_h->index = (char)index; 21916733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_header_h->link); 21926733b39aSJayamohan Kallickal pasync_header_h->pbuffer = 21936733b39aSJayamohan Kallickal (void *)((unsigned long) 21946733b39aSJayamohan Kallickal (pasync_ctx->async_header.va_base) + 21956733b39aSJayamohan Kallickal (p->defpdu_hdr_sz * index)); 21966733b39aSJayamohan Kallickal 21976733b39aSJayamohan Kallickal pasync_header_h->pa.u.a64.address = 21986733b39aSJayamohan Kallickal pasync_ctx->async_header.pa_base.u.a64.address + 21996733b39aSJayamohan Kallickal (p->defpdu_hdr_sz * index); 22006733b39aSJayamohan Kallickal 22016733b39aSJayamohan Kallickal list_add_tail(&pasync_header_h->link, 22026733b39aSJayamohan Kallickal &pasync_ctx->async_header.free_list); 22036733b39aSJayamohan Kallickal pasync_header_h++; 22046733b39aSJayamohan Kallickal pasync_ctx->async_header.free_entries++; 22056733b39aSJayamohan Kallickal pasync_ctx->async_header.writables++; 22066733b39aSJayamohan Kallickal 22076733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index].wait_queue.list); 22086733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index]. 22096733b39aSJayamohan Kallickal header_busy_list); 22106733b39aSJayamohan Kallickal pasync_data_h->cri = -1; 22116733b39aSJayamohan Kallickal pasync_data_h->index = (char)index; 22126733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_data_h->link); 22136733b39aSJayamohan Kallickal pasync_data_h->pbuffer = 22146733b39aSJayamohan Kallickal (void *)((unsigned long) 22156733b39aSJayamohan Kallickal (pasync_ctx->async_data.va_base) + 22166733b39aSJayamohan Kallickal (p->defpdu_data_sz * index)); 22176733b39aSJayamohan Kallickal 22186733b39aSJayamohan Kallickal pasync_data_h->pa.u.a64.address = 22196733b39aSJayamohan Kallickal pasync_ctx->async_data.pa_base.u.a64.address + 22206733b39aSJayamohan Kallickal (p->defpdu_data_sz * index); 22216733b39aSJayamohan Kallickal 22226733b39aSJayamohan Kallickal list_add_tail(&pasync_data_h->link, 22236733b39aSJayamohan Kallickal &pasync_ctx->async_data.free_list); 22246733b39aSJayamohan Kallickal pasync_data_h++; 22256733b39aSJayamohan Kallickal pasync_ctx->async_data.free_entries++; 22266733b39aSJayamohan Kallickal pasync_ctx->async_data.writables++; 22276733b39aSJayamohan Kallickal 22286733b39aSJayamohan Kallickal INIT_LIST_HEAD(&pasync_ctx->async_entry[index].data_busy_list); 22296733b39aSJayamohan Kallickal } 22306733b39aSJayamohan Kallickal 22316733b39aSJayamohan Kallickal pasync_ctx->async_header.host_write_ptr = 0; 22326733b39aSJayamohan Kallickal pasync_ctx->async_header.ep_read_ptr = -1; 22336733b39aSJayamohan Kallickal pasync_ctx->async_data.host_write_ptr = 0; 22346733b39aSJayamohan Kallickal pasync_ctx->async_data.ep_read_ptr = -1; 22356733b39aSJayamohan Kallickal } 22366733b39aSJayamohan Kallickal 22376733b39aSJayamohan Kallickal static int 22386733b39aSJayamohan Kallickal be_sgl_create_contiguous(void *virtual_address, 22396733b39aSJayamohan Kallickal u64 physical_address, u32 length, 22406733b39aSJayamohan Kallickal struct be_dma_mem *sgl) 22416733b39aSJayamohan Kallickal { 22426733b39aSJayamohan Kallickal WARN_ON(!virtual_address); 22436733b39aSJayamohan Kallickal WARN_ON(!physical_address); 22446733b39aSJayamohan Kallickal WARN_ON(!length > 0); 22456733b39aSJayamohan Kallickal WARN_ON(!sgl); 22466733b39aSJayamohan Kallickal 22476733b39aSJayamohan Kallickal sgl->va = virtual_address; 22486733b39aSJayamohan Kallickal sgl->dma = physical_address; 22496733b39aSJayamohan Kallickal sgl->size = length; 22506733b39aSJayamohan Kallickal 22516733b39aSJayamohan Kallickal return 0; 22526733b39aSJayamohan Kallickal } 22536733b39aSJayamohan Kallickal 22546733b39aSJayamohan Kallickal static void be_sgl_destroy_contiguous(struct be_dma_mem *sgl) 22556733b39aSJayamohan Kallickal { 22566733b39aSJayamohan Kallickal memset(sgl, 0, sizeof(*sgl)); 22576733b39aSJayamohan Kallickal } 22586733b39aSJayamohan Kallickal 22596733b39aSJayamohan Kallickal static void 22606733b39aSJayamohan Kallickal hwi_build_be_sgl_arr(struct beiscsi_hba *phba, 22616733b39aSJayamohan Kallickal struct mem_array *pmem, struct be_dma_mem *sgl) 22626733b39aSJayamohan Kallickal { 22636733b39aSJayamohan Kallickal if (sgl->va) 22646733b39aSJayamohan Kallickal be_sgl_destroy_contiguous(sgl); 22656733b39aSJayamohan Kallickal 22666733b39aSJayamohan Kallickal be_sgl_create_contiguous(pmem->virtual_address, 22676733b39aSJayamohan Kallickal pmem->bus_address.u.a64.address, 22686733b39aSJayamohan Kallickal pmem->size, sgl); 22696733b39aSJayamohan Kallickal } 22706733b39aSJayamohan Kallickal 22716733b39aSJayamohan Kallickal static void 22726733b39aSJayamohan Kallickal hwi_build_be_sgl_by_offset(struct beiscsi_hba *phba, 22736733b39aSJayamohan Kallickal struct mem_array *pmem, struct be_dma_mem *sgl) 22746733b39aSJayamohan Kallickal { 22756733b39aSJayamohan Kallickal if (sgl->va) 22766733b39aSJayamohan Kallickal be_sgl_destroy_contiguous(sgl); 22776733b39aSJayamohan Kallickal 22786733b39aSJayamohan Kallickal be_sgl_create_contiguous((unsigned char *)pmem->virtual_address, 22796733b39aSJayamohan Kallickal pmem->bus_address.u.a64.address, 22806733b39aSJayamohan Kallickal pmem->size, sgl); 22816733b39aSJayamohan Kallickal } 22826733b39aSJayamohan Kallickal 22836733b39aSJayamohan Kallickal static int be_fill_queue(struct be_queue_info *q, 22846733b39aSJayamohan Kallickal u16 len, u16 entry_size, void *vaddress) 22856733b39aSJayamohan Kallickal { 22866733b39aSJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 22876733b39aSJayamohan Kallickal 22886733b39aSJayamohan Kallickal memset(q, 0, sizeof(*q)); 22896733b39aSJayamohan Kallickal q->len = len; 22906733b39aSJayamohan Kallickal q->entry_size = entry_size; 22916733b39aSJayamohan Kallickal mem->size = len * entry_size; 22926733b39aSJayamohan Kallickal mem->va = vaddress; 22936733b39aSJayamohan Kallickal if (!mem->va) 22946733b39aSJayamohan Kallickal return -ENOMEM; 22956733b39aSJayamohan Kallickal memset(mem->va, 0, mem->size); 22966733b39aSJayamohan Kallickal return 0; 22976733b39aSJayamohan Kallickal } 22986733b39aSJayamohan Kallickal 2299bfead3b2SJayamohan Kallickal static int beiscsi_create_eqs(struct beiscsi_hba *phba, 23006733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context) 23016733b39aSJayamohan Kallickal { 2302bfead3b2SJayamohan Kallickal unsigned int i, num_eq_pages; 2303bfead3b2SJayamohan Kallickal int ret, eq_for_mcc; 23046733b39aSJayamohan Kallickal struct be_queue_info *eq; 23056733b39aSJayamohan Kallickal struct be_dma_mem *mem; 23066733b39aSJayamohan Kallickal void *eq_vaddress; 2307bfead3b2SJayamohan Kallickal dma_addr_t paddr; 23086733b39aSJayamohan Kallickal 2309bfead3b2SJayamohan Kallickal num_eq_pages = PAGES_REQUIRED(phba->params.num_eq_entries * \ 2310bfead3b2SJayamohan Kallickal sizeof(struct be_eq_entry)); 2311bfead3b2SJayamohan Kallickal 2312bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 2313bfead3b2SJayamohan Kallickal eq_for_mcc = 1; 2314bfead3b2SJayamohan Kallickal else 2315bfead3b2SJayamohan Kallickal eq_for_mcc = 0; 2316bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) { 2317bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 23186733b39aSJayamohan Kallickal mem = &eq->dma_mem; 2319bfead3b2SJayamohan Kallickal phwi_context->be_eq[i].phba = phba; 2320bfead3b2SJayamohan Kallickal eq_vaddress = pci_alloc_consistent(phba->pcidev, 2321bfead3b2SJayamohan Kallickal num_eq_pages * PAGE_SIZE, 2322bfead3b2SJayamohan Kallickal &paddr); 2323bfead3b2SJayamohan Kallickal if (!eq_vaddress) 2324bfead3b2SJayamohan Kallickal goto create_eq_error; 23256733b39aSJayamohan Kallickal 2326bfead3b2SJayamohan Kallickal mem->va = eq_vaddress; 23276733b39aSJayamohan Kallickal ret = be_fill_queue(eq, phba->params.num_eq_entries, 23286733b39aSJayamohan Kallickal sizeof(struct be_eq_entry), eq_vaddress); 23296733b39aSJayamohan Kallickal if (ret) { 23306733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 23316733b39aSJayamohan Kallickal "be_fill_queue Failed for EQ \n"); 2332bfead3b2SJayamohan Kallickal goto create_eq_error; 23336733b39aSJayamohan Kallickal } 23346733b39aSJayamohan Kallickal 2335bfead3b2SJayamohan Kallickal mem->dma = paddr; 23366733b39aSJayamohan Kallickal ret = beiscsi_cmd_eq_create(&phba->ctrl, eq, 2337bfead3b2SJayamohan Kallickal phwi_context->cur_eqd); 23386733b39aSJayamohan Kallickal if (ret) { 2339bfead3b2SJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 2340bfead3b2SJayamohan Kallickal "beiscsi_cmd_eq_create" 23416733b39aSJayamohan Kallickal "Failedfor EQ \n"); 2342bfead3b2SJayamohan Kallickal goto create_eq_error; 2343bfead3b2SJayamohan Kallickal } 2344bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "eqid = %d\n", phwi_context->be_eq[i].q.id); 2345bfead3b2SJayamohan Kallickal } 2346bfead3b2SJayamohan Kallickal return 0; 2347bfead3b2SJayamohan Kallickal create_eq_error: 2348bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + 1); i++) { 2349bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 2350bfead3b2SJayamohan Kallickal mem = &eq->dma_mem; 2351bfead3b2SJayamohan Kallickal if (mem->va) 2352bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, num_eq_pages 2353bfead3b2SJayamohan Kallickal * PAGE_SIZE, 2354bfead3b2SJayamohan Kallickal mem->va, mem->dma); 2355bfead3b2SJayamohan Kallickal } 23566733b39aSJayamohan Kallickal return ret; 23576733b39aSJayamohan Kallickal } 23586733b39aSJayamohan Kallickal 2359bfead3b2SJayamohan Kallickal static int beiscsi_create_cqs(struct beiscsi_hba *phba, 23606733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context) 23616733b39aSJayamohan Kallickal { 2362bfead3b2SJayamohan Kallickal unsigned int i, num_cq_pages; 23636733b39aSJayamohan Kallickal int ret; 23646733b39aSJayamohan Kallickal struct be_queue_info *cq, *eq; 23656733b39aSJayamohan Kallickal struct be_dma_mem *mem; 2366bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 23676733b39aSJayamohan Kallickal void *cq_vaddress; 2368bfead3b2SJayamohan Kallickal dma_addr_t paddr; 23696733b39aSJayamohan Kallickal 2370bfead3b2SJayamohan Kallickal num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \ 2371bfead3b2SJayamohan Kallickal sizeof(struct sol_cqe)); 2372bfead3b2SJayamohan Kallickal 2373bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 2374bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[i]; 2375bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 2376bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 2377bfead3b2SJayamohan Kallickal pbe_eq->cq = cq; 2378bfead3b2SJayamohan Kallickal pbe_eq->phba = phba; 23796733b39aSJayamohan Kallickal mem = &cq->dma_mem; 2380bfead3b2SJayamohan Kallickal cq_vaddress = pci_alloc_consistent(phba->pcidev, 2381bfead3b2SJayamohan Kallickal num_cq_pages * PAGE_SIZE, 2382bfead3b2SJayamohan Kallickal &paddr); 2383bfead3b2SJayamohan Kallickal if (!cq_vaddress) 2384bfead3b2SJayamohan Kallickal goto create_cq_error; 23857da50879SJayamohan Kallickal ret = be_fill_queue(cq, phba->params.num_cq_entries, 23866733b39aSJayamohan Kallickal sizeof(struct sol_cqe), cq_vaddress); 23876733b39aSJayamohan Kallickal if (ret) { 23886733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 23896733b39aSJayamohan Kallickal "be_fill_queue Failed for ISCSI CQ \n"); 2390bfead3b2SJayamohan Kallickal goto create_cq_error; 23916733b39aSJayamohan Kallickal } 23926733b39aSJayamohan Kallickal 2393bfead3b2SJayamohan Kallickal mem->dma = paddr; 2394bfead3b2SJayamohan Kallickal ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false, 2395bfead3b2SJayamohan Kallickal false, 0); 23966733b39aSJayamohan Kallickal if (ret) { 23976733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 2398bfead3b2SJayamohan Kallickal "beiscsi_cmd_eq_create" 2399bfead3b2SJayamohan Kallickal "Failed for ISCSI CQ \n"); 2400bfead3b2SJayamohan Kallickal goto create_cq_error; 24016733b39aSJayamohan Kallickal } 2402bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "iscsi cq_id is %d for eq_id %d\n", 2403bfead3b2SJayamohan Kallickal cq->id, eq->id); 24046733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "ISCSI CQ CREATED\n"); 2405bfead3b2SJayamohan Kallickal } 24066733b39aSJayamohan Kallickal return 0; 2407bfead3b2SJayamohan Kallickal 2408bfead3b2SJayamohan Kallickal create_cq_error: 2409bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 2410bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[i]; 2411bfead3b2SJayamohan Kallickal mem = &cq->dma_mem; 2412bfead3b2SJayamohan Kallickal if (mem->va) 2413bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, num_cq_pages 2414bfead3b2SJayamohan Kallickal * PAGE_SIZE, 2415bfead3b2SJayamohan Kallickal mem->va, mem->dma); 2416bfead3b2SJayamohan Kallickal } 2417bfead3b2SJayamohan Kallickal return ret; 2418bfead3b2SJayamohan Kallickal 24196733b39aSJayamohan Kallickal } 24206733b39aSJayamohan Kallickal 24216733b39aSJayamohan Kallickal static int 24226733b39aSJayamohan Kallickal beiscsi_create_def_hdr(struct beiscsi_hba *phba, 24236733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 24246733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr, 24256733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz) 24266733b39aSJayamohan Kallickal { 24276733b39aSJayamohan Kallickal unsigned int idx; 24286733b39aSJayamohan Kallickal int ret; 24296733b39aSJayamohan Kallickal struct be_queue_info *dq, *cq; 24306733b39aSJayamohan Kallickal struct be_dma_mem *mem; 24316733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 24326733b39aSJayamohan Kallickal void *dq_vaddress; 24336733b39aSJayamohan Kallickal 24346733b39aSJayamohan Kallickal idx = 0; 24356733b39aSJayamohan Kallickal dq = &phwi_context->be_def_hdrq; 2436bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 24376733b39aSJayamohan Kallickal mem = &dq->dma_mem; 24386733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 24396733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_HEADER_RING; 24406733b39aSJayamohan Kallickal dq_vaddress = mem_descr->mem_array[idx].virtual_address; 24416733b39aSJayamohan Kallickal ret = be_fill_queue(dq, mem_descr->mem_array[0].size / 24426733b39aSJayamohan Kallickal sizeof(struct phys_addr), 24436733b39aSJayamohan Kallickal sizeof(struct phys_addr), dq_vaddress); 24446733b39aSJayamohan Kallickal if (ret) { 24456733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 24466733b39aSJayamohan Kallickal "be_fill_queue Failed for DEF PDU HDR\n"); 24476733b39aSJayamohan Kallickal return ret; 24486733b39aSJayamohan Kallickal } 24496733b39aSJayamohan Kallickal mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address; 24506733b39aSJayamohan Kallickal ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dq, 24516733b39aSJayamohan Kallickal def_pdu_ring_sz, 24526733b39aSJayamohan Kallickal phba->params.defpdu_hdr_sz); 24536733b39aSJayamohan Kallickal if (ret) { 24546733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 24556733b39aSJayamohan Kallickal "be_cmd_create_default_pdu_queue Failed DEFHDR\n"); 24566733b39aSJayamohan Kallickal return ret; 24576733b39aSJayamohan Kallickal } 24586733b39aSJayamohan Kallickal phwi_ctrlr->default_pdu_hdr.id = phwi_context->be_def_hdrq.id; 24596733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "iscsi def pdu id is %d\n", 24606733b39aSJayamohan Kallickal phwi_context->be_def_hdrq.id); 24616733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, 1); 24626733b39aSJayamohan Kallickal return 0; 24636733b39aSJayamohan Kallickal } 24646733b39aSJayamohan Kallickal 24656733b39aSJayamohan Kallickal static int 24666733b39aSJayamohan Kallickal beiscsi_create_def_data(struct beiscsi_hba *phba, 24676733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 24686733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr, 24696733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz) 24706733b39aSJayamohan Kallickal { 24716733b39aSJayamohan Kallickal unsigned int idx; 24726733b39aSJayamohan Kallickal int ret; 24736733b39aSJayamohan Kallickal struct be_queue_info *dataq, *cq; 24746733b39aSJayamohan Kallickal struct be_dma_mem *mem; 24756733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 24766733b39aSJayamohan Kallickal void *dq_vaddress; 24776733b39aSJayamohan Kallickal 24786733b39aSJayamohan Kallickal idx = 0; 24796733b39aSJayamohan Kallickal dataq = &phwi_context->be_def_dataq; 2480bfead3b2SJayamohan Kallickal cq = &phwi_context->be_cq[0]; 24816733b39aSJayamohan Kallickal mem = &dataq->dma_mem; 24826733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 24836733b39aSJayamohan Kallickal mem_descr += HWI_MEM_ASYNC_DATA_RING; 24846733b39aSJayamohan Kallickal dq_vaddress = mem_descr->mem_array[idx].virtual_address; 24856733b39aSJayamohan Kallickal ret = be_fill_queue(dataq, mem_descr->mem_array[0].size / 24866733b39aSJayamohan Kallickal sizeof(struct phys_addr), 24876733b39aSJayamohan Kallickal sizeof(struct phys_addr), dq_vaddress); 24886733b39aSJayamohan Kallickal if (ret) { 24896733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 24906733b39aSJayamohan Kallickal "be_fill_queue Failed for DEF PDU DATA\n"); 24916733b39aSJayamohan Kallickal return ret; 24926733b39aSJayamohan Kallickal } 24936733b39aSJayamohan Kallickal mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address; 24946733b39aSJayamohan Kallickal ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dataq, 24956733b39aSJayamohan Kallickal def_pdu_ring_sz, 24966733b39aSJayamohan Kallickal phba->params.defpdu_data_sz); 24976733b39aSJayamohan Kallickal if (ret) { 24986733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 24996733b39aSJayamohan Kallickal "be_cmd_create_default_pdu_queue Failed" 25006733b39aSJayamohan Kallickal " for DEF PDU DATA\n"); 25016733b39aSJayamohan Kallickal return ret; 25026733b39aSJayamohan Kallickal } 25036733b39aSJayamohan Kallickal phwi_ctrlr->default_pdu_data.id = phwi_context->be_def_dataq.id; 25046733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "iscsi def data id is %d\n", 25056733b39aSJayamohan Kallickal phwi_context->be_def_dataq.id); 25066733b39aSJayamohan Kallickal hwi_post_async_buffers(phba, 0); 25076733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "DEFAULT PDU DATA RING CREATED \n"); 25086733b39aSJayamohan Kallickal return 0; 25096733b39aSJayamohan Kallickal } 25106733b39aSJayamohan Kallickal 25116733b39aSJayamohan Kallickal static int 25126733b39aSJayamohan Kallickal beiscsi_post_pages(struct beiscsi_hba *phba) 25136733b39aSJayamohan Kallickal { 25146733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 25156733b39aSJayamohan Kallickal struct mem_array *pm_arr; 25166733b39aSJayamohan Kallickal unsigned int page_offset, i; 25176733b39aSJayamohan Kallickal struct be_dma_mem sgl; 25186733b39aSJayamohan Kallickal int status; 25196733b39aSJayamohan Kallickal 25206733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 25216733b39aSJayamohan Kallickal mem_descr += HWI_MEM_SGE; 25226733b39aSJayamohan Kallickal pm_arr = mem_descr->mem_array; 25236733b39aSJayamohan Kallickal 25246733b39aSJayamohan Kallickal page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io * 25256733b39aSJayamohan Kallickal phba->fw_config.iscsi_icd_start) / PAGE_SIZE; 25266733b39aSJayamohan Kallickal for (i = 0; i < mem_descr->num_elements; i++) { 25276733b39aSJayamohan Kallickal hwi_build_be_sgl_arr(phba, pm_arr, &sgl); 25286733b39aSJayamohan Kallickal status = be_cmd_iscsi_post_sgl_pages(&phba->ctrl, &sgl, 25296733b39aSJayamohan Kallickal page_offset, 25306733b39aSJayamohan Kallickal (pm_arr->size / PAGE_SIZE)); 25316733b39aSJayamohan Kallickal page_offset += pm_arr->size / PAGE_SIZE; 25326733b39aSJayamohan Kallickal if (status != 0) { 25336733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 25346733b39aSJayamohan Kallickal "post sgl failed.\n"); 25356733b39aSJayamohan Kallickal return status; 25366733b39aSJayamohan Kallickal } 25376733b39aSJayamohan Kallickal pm_arr++; 25386733b39aSJayamohan Kallickal } 25396733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "POSTED PAGES \n"); 25406733b39aSJayamohan Kallickal return 0; 25416733b39aSJayamohan Kallickal } 25426733b39aSJayamohan Kallickal 2543bfead3b2SJayamohan Kallickal static void be_queue_free(struct beiscsi_hba *phba, struct be_queue_info *q) 2544bfead3b2SJayamohan Kallickal { 2545bfead3b2SJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 2546bfead3b2SJayamohan Kallickal if (mem->va) 2547bfead3b2SJayamohan Kallickal pci_free_consistent(phba->pcidev, mem->size, 2548bfead3b2SJayamohan Kallickal mem->va, mem->dma); 2549bfead3b2SJayamohan Kallickal } 2550bfead3b2SJayamohan Kallickal 2551bfead3b2SJayamohan Kallickal static int be_queue_alloc(struct beiscsi_hba *phba, struct be_queue_info *q, 2552bfead3b2SJayamohan Kallickal u16 len, u16 entry_size) 2553bfead3b2SJayamohan Kallickal { 2554bfead3b2SJayamohan Kallickal struct be_dma_mem *mem = &q->dma_mem; 2555bfead3b2SJayamohan Kallickal 2556bfead3b2SJayamohan Kallickal memset(q, 0, sizeof(*q)); 2557bfead3b2SJayamohan Kallickal q->len = len; 2558bfead3b2SJayamohan Kallickal q->entry_size = entry_size; 2559bfead3b2SJayamohan Kallickal mem->size = len * entry_size; 2560bfead3b2SJayamohan Kallickal mem->va = pci_alloc_consistent(phba->pcidev, mem->size, &mem->dma); 2561bfead3b2SJayamohan Kallickal if (!mem->va) 2562bfead3b2SJayamohan Kallickal return -1; 2563bfead3b2SJayamohan Kallickal memset(mem->va, 0, mem->size); 2564bfead3b2SJayamohan Kallickal return 0; 2565bfead3b2SJayamohan Kallickal } 2566bfead3b2SJayamohan Kallickal 25676733b39aSJayamohan Kallickal static int 25686733b39aSJayamohan Kallickal beiscsi_create_wrb_rings(struct beiscsi_hba *phba, 25696733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context, 25706733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr) 25716733b39aSJayamohan Kallickal { 25726733b39aSJayamohan Kallickal unsigned int wrb_mem_index, offset, size, num_wrb_rings; 25736733b39aSJayamohan Kallickal u64 pa_addr_lo; 25746733b39aSJayamohan Kallickal unsigned int idx, num, i; 25756733b39aSJayamohan Kallickal struct mem_array *pwrb_arr; 25766733b39aSJayamohan Kallickal void *wrb_vaddr; 25776733b39aSJayamohan Kallickal struct be_dma_mem sgl; 25786733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 25796733b39aSJayamohan Kallickal int status; 25806733b39aSJayamohan Kallickal 25816733b39aSJayamohan Kallickal idx = 0; 25826733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 25836733b39aSJayamohan Kallickal mem_descr += HWI_MEM_WRB; 25846733b39aSJayamohan Kallickal pwrb_arr = kmalloc(sizeof(*pwrb_arr) * phba->params.cxns_per_ctrl, 25856733b39aSJayamohan Kallickal GFP_KERNEL); 25866733b39aSJayamohan Kallickal if (!pwrb_arr) { 25876733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 25886733b39aSJayamohan Kallickal "Memory alloc failed in create wrb ring.\n"); 25896733b39aSJayamohan Kallickal return -ENOMEM; 25906733b39aSJayamohan Kallickal } 25916733b39aSJayamohan Kallickal wrb_vaddr = mem_descr->mem_array[idx].virtual_address; 25926733b39aSJayamohan Kallickal pa_addr_lo = mem_descr->mem_array[idx].bus_address.u.a64.address; 25936733b39aSJayamohan Kallickal num_wrb_rings = mem_descr->mem_array[idx].size / 25946733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn * sizeof(struct iscsi_wrb)); 25956733b39aSJayamohan Kallickal 25966733b39aSJayamohan Kallickal for (num = 0; num < phba->params.cxns_per_ctrl; num++) { 25976733b39aSJayamohan Kallickal if (num_wrb_rings) { 25986733b39aSJayamohan Kallickal pwrb_arr[num].virtual_address = wrb_vaddr; 25996733b39aSJayamohan Kallickal pwrb_arr[num].bus_address.u.a64.address = pa_addr_lo; 26006733b39aSJayamohan Kallickal pwrb_arr[num].size = phba->params.wrbs_per_cxn * 26016733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb); 26026733b39aSJayamohan Kallickal wrb_vaddr += pwrb_arr[num].size; 26036733b39aSJayamohan Kallickal pa_addr_lo += pwrb_arr[num].size; 26046733b39aSJayamohan Kallickal num_wrb_rings--; 26056733b39aSJayamohan Kallickal } else { 26066733b39aSJayamohan Kallickal idx++; 26076733b39aSJayamohan Kallickal wrb_vaddr = mem_descr->mem_array[idx].virtual_address; 26086733b39aSJayamohan Kallickal pa_addr_lo = mem_descr->mem_array[idx].\ 26096733b39aSJayamohan Kallickal bus_address.u.a64.address; 26106733b39aSJayamohan Kallickal num_wrb_rings = mem_descr->mem_array[idx].size / 26116733b39aSJayamohan Kallickal (phba->params.wrbs_per_cxn * 26126733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb)); 26136733b39aSJayamohan Kallickal pwrb_arr[num].virtual_address = wrb_vaddr; 26146733b39aSJayamohan Kallickal pwrb_arr[num].bus_address.u.a64.address\ 26156733b39aSJayamohan Kallickal = pa_addr_lo; 26166733b39aSJayamohan Kallickal pwrb_arr[num].size = phba->params.wrbs_per_cxn * 26176733b39aSJayamohan Kallickal sizeof(struct iscsi_wrb); 26186733b39aSJayamohan Kallickal wrb_vaddr += pwrb_arr[num].size; 26196733b39aSJayamohan Kallickal pa_addr_lo += pwrb_arr[num].size; 26206733b39aSJayamohan Kallickal num_wrb_rings--; 26216733b39aSJayamohan Kallickal } 26226733b39aSJayamohan Kallickal } 26236733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 26246733b39aSJayamohan Kallickal wrb_mem_index = 0; 26256733b39aSJayamohan Kallickal offset = 0; 26266733b39aSJayamohan Kallickal size = 0; 26276733b39aSJayamohan Kallickal 26286733b39aSJayamohan Kallickal hwi_build_be_sgl_by_offset(phba, &pwrb_arr[i], &sgl); 26296733b39aSJayamohan Kallickal status = be_cmd_wrbq_create(&phba->ctrl, &sgl, 26306733b39aSJayamohan Kallickal &phwi_context->be_wrbq[i]); 26316733b39aSJayamohan Kallickal if (status != 0) { 26326733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 26336733b39aSJayamohan Kallickal "wrbq create failed."); 26346733b39aSJayamohan Kallickal return status; 26356733b39aSJayamohan Kallickal } 26367da50879SJayamohan Kallickal phwi_ctrlr->wrb_context[i * 2].cid = phwi_context->be_wrbq[i]. 26377da50879SJayamohan Kallickal id; 26386733b39aSJayamohan Kallickal } 26396733b39aSJayamohan Kallickal kfree(pwrb_arr); 26406733b39aSJayamohan Kallickal return 0; 26416733b39aSJayamohan Kallickal } 26426733b39aSJayamohan Kallickal 26436733b39aSJayamohan Kallickal static void free_wrb_handles(struct beiscsi_hba *phba) 26446733b39aSJayamohan Kallickal { 26456733b39aSJayamohan Kallickal unsigned int index; 26466733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 26476733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 26486733b39aSJayamohan Kallickal 26496733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 26506733b39aSJayamohan Kallickal for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) { 26516733b39aSJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[index]; 26526733b39aSJayamohan Kallickal kfree(pwrb_context->pwrb_handle_base); 26536733b39aSJayamohan Kallickal kfree(pwrb_context->pwrb_handle_basestd); 26546733b39aSJayamohan Kallickal } 26556733b39aSJayamohan Kallickal } 26566733b39aSJayamohan Kallickal 2657bfead3b2SJayamohan Kallickal static void be_mcc_queues_destroy(struct beiscsi_hba *phba) 2658bfead3b2SJayamohan Kallickal { 2659bfead3b2SJayamohan Kallickal struct be_queue_info *q; 2660bfead3b2SJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 2661bfead3b2SJayamohan Kallickal 2662bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.q; 2663bfead3b2SJayamohan Kallickal if (q->created) 2664bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_MCCQ); 2665bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 2666bfead3b2SJayamohan Kallickal 2667bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.cq; 2668bfead3b2SJayamohan Kallickal if (q->created) 2669bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ); 2670bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 2671bfead3b2SJayamohan Kallickal } 2672bfead3b2SJayamohan Kallickal 26736733b39aSJayamohan Kallickal static void hwi_cleanup(struct beiscsi_hba *phba) 26746733b39aSJayamohan Kallickal { 26756733b39aSJayamohan Kallickal struct be_queue_info *q; 26766733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 26776733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 26786733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 2679bfead3b2SJayamohan Kallickal int i, eq_num; 26806733b39aSJayamohan Kallickal 26816733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 26826733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 26836733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 26846733b39aSJayamohan Kallickal q = &phwi_context->be_wrbq[i]; 26856733b39aSJayamohan Kallickal if (q->created) 26866733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ); 26876733b39aSJayamohan Kallickal } 26886733b39aSJayamohan Kallickal free_wrb_handles(phba); 26896733b39aSJayamohan Kallickal 26906733b39aSJayamohan Kallickal q = &phwi_context->be_def_hdrq; 26916733b39aSJayamohan Kallickal if (q->created) 26926733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ); 26936733b39aSJayamohan Kallickal 26946733b39aSJayamohan Kallickal q = &phwi_context->be_def_dataq; 26956733b39aSJayamohan Kallickal if (q->created) 26966733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ); 26976733b39aSJayamohan Kallickal 26986733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL); 26996733b39aSJayamohan Kallickal 2700bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus); i++) { 2701bfead3b2SJayamohan Kallickal q = &phwi_context->be_cq[i]; 27026733b39aSJayamohan Kallickal if (q->created) 27036733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ); 2704bfead3b2SJayamohan Kallickal } 2705bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 2706bfead3b2SJayamohan Kallickal eq_num = 1; 2707bfead3b2SJayamohan Kallickal else 2708bfead3b2SJayamohan Kallickal eq_num = 0; 2709bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_num); i++) { 2710bfead3b2SJayamohan Kallickal q = &phwi_context->be_eq[i].q; 27116733b39aSJayamohan Kallickal if (q->created) 27126733b39aSJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ); 27136733b39aSJayamohan Kallickal } 2714bfead3b2SJayamohan Kallickal be_mcc_queues_destroy(phba); 2715bfead3b2SJayamohan Kallickal } 2716bfead3b2SJayamohan Kallickal 2717bfead3b2SJayamohan Kallickal static int be_mcc_queues_create(struct beiscsi_hba *phba, 2718bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context) 2719bfead3b2SJayamohan Kallickal { 2720bfead3b2SJayamohan Kallickal struct be_queue_info *q, *cq; 2721bfead3b2SJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 2722bfead3b2SJayamohan Kallickal 2723bfead3b2SJayamohan Kallickal /* Alloc MCC compl queue */ 2724bfead3b2SJayamohan Kallickal cq = &phba->ctrl.mcc_obj.cq; 2725bfead3b2SJayamohan Kallickal if (be_queue_alloc(phba, cq, MCC_CQ_LEN, 2726bfead3b2SJayamohan Kallickal sizeof(struct be_mcc_compl))) 2727bfead3b2SJayamohan Kallickal goto err; 2728bfead3b2SJayamohan Kallickal /* Ask BE to create MCC compl queue; */ 2729bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 2730bfead3b2SJayamohan Kallickal if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq 2731bfead3b2SJayamohan Kallickal [phba->num_cpus].q, false, true, 0)) 2732bfead3b2SJayamohan Kallickal goto mcc_cq_free; 2733bfead3b2SJayamohan Kallickal } else { 2734bfead3b2SJayamohan Kallickal if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq[0].q, 2735bfead3b2SJayamohan Kallickal false, true, 0)) 2736bfead3b2SJayamohan Kallickal goto mcc_cq_free; 2737bfead3b2SJayamohan Kallickal } 2738bfead3b2SJayamohan Kallickal 2739bfead3b2SJayamohan Kallickal /* Alloc MCC queue */ 2740bfead3b2SJayamohan Kallickal q = &phba->ctrl.mcc_obj.q; 2741bfead3b2SJayamohan Kallickal if (be_queue_alloc(phba, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb))) 2742bfead3b2SJayamohan Kallickal goto mcc_cq_destroy; 2743bfead3b2SJayamohan Kallickal 2744bfead3b2SJayamohan Kallickal /* Ask BE to create MCC queue */ 274535e66019SJayamohan Kallickal if (beiscsi_cmd_mccq_create(phba, q, cq)) 2746bfead3b2SJayamohan Kallickal goto mcc_q_free; 2747bfead3b2SJayamohan Kallickal 2748bfead3b2SJayamohan Kallickal return 0; 2749bfead3b2SJayamohan Kallickal 2750bfead3b2SJayamohan Kallickal mcc_q_free: 2751bfead3b2SJayamohan Kallickal be_queue_free(phba, q); 2752bfead3b2SJayamohan Kallickal mcc_cq_destroy: 2753bfead3b2SJayamohan Kallickal beiscsi_cmd_q_destroy(ctrl, cq, QTYPE_CQ); 2754bfead3b2SJayamohan Kallickal mcc_cq_free: 2755bfead3b2SJayamohan Kallickal be_queue_free(phba, cq); 2756bfead3b2SJayamohan Kallickal err: 2757bfead3b2SJayamohan Kallickal return -1; 2758bfead3b2SJayamohan Kallickal } 2759bfead3b2SJayamohan Kallickal 2760bfead3b2SJayamohan Kallickal static int find_num_cpus(void) 2761bfead3b2SJayamohan Kallickal { 2762bfead3b2SJayamohan Kallickal int num_cpus = 0; 2763bfead3b2SJayamohan Kallickal 2764bfead3b2SJayamohan Kallickal num_cpus = num_online_cpus(); 2765bfead3b2SJayamohan Kallickal if (num_cpus >= MAX_CPUS) 2766bfead3b2SJayamohan Kallickal num_cpus = MAX_CPUS - 1; 2767bfead3b2SJayamohan Kallickal 2768bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "num_cpus = %d \n", num_cpus); 2769bfead3b2SJayamohan Kallickal return num_cpus; 2770bfead3b2SJayamohan Kallickal } 27716733b39aSJayamohan Kallickal 27726733b39aSJayamohan Kallickal static int hwi_init_port(struct beiscsi_hba *phba) 27736733b39aSJayamohan Kallickal { 27746733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 27756733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 27766733b39aSJayamohan Kallickal unsigned int def_pdu_ring_sz; 27776733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 27786733b39aSJayamohan Kallickal int status; 27796733b39aSJayamohan Kallickal 27806733b39aSJayamohan Kallickal def_pdu_ring_sz = 27816733b39aSJayamohan Kallickal phba->params.asyncpdus_per_ctrl * sizeof(struct phys_addr); 27826733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 27836733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 2784bfead3b2SJayamohan Kallickal phwi_context->max_eqd = 0; 2785bfead3b2SJayamohan Kallickal phwi_context->min_eqd = 0; 2786bfead3b2SJayamohan Kallickal phwi_context->cur_eqd = 64; 27876733b39aSJayamohan Kallickal be_cmd_fw_initialize(&phba->ctrl); 2788bfead3b2SJayamohan Kallickal 2789bfead3b2SJayamohan Kallickal status = beiscsi_create_eqs(phba, phwi_context); 27906733b39aSJayamohan Kallickal if (status != 0) { 27916733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "EQ not created \n"); 27926733b39aSJayamohan Kallickal goto error; 27936733b39aSJayamohan Kallickal } 27946733b39aSJayamohan Kallickal 2795bfead3b2SJayamohan Kallickal status = be_mcc_queues_create(phba, phwi_context); 2796bfead3b2SJayamohan Kallickal if (status != 0) 2797bfead3b2SJayamohan Kallickal goto error; 2798bfead3b2SJayamohan Kallickal 2799bfead3b2SJayamohan Kallickal status = mgmt_check_supported_fw(ctrl, phba); 28006733b39aSJayamohan Kallickal if (status != 0) { 28016733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 28026733b39aSJayamohan Kallickal "Unsupported fw version \n"); 28036733b39aSJayamohan Kallickal goto error; 28046733b39aSJayamohan Kallickal } 28056733b39aSJayamohan Kallickal 280635e66019SJayamohan Kallickal if (phba->fw_config.iscsi_features == 0x1) 280735e66019SJayamohan Kallickal ring_mode = 1; 280835e66019SJayamohan Kallickal else 280935e66019SJayamohan Kallickal ring_mode = 0; 28106733b39aSJayamohan Kallickal 2811bfead3b2SJayamohan Kallickal status = beiscsi_create_cqs(phba, phwi_context); 28126733b39aSJayamohan Kallickal if (status != 0) { 28136733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "CQ not created\n"); 28146733b39aSJayamohan Kallickal goto error; 28156733b39aSJayamohan Kallickal } 28166733b39aSJayamohan Kallickal 28176733b39aSJayamohan Kallickal status = beiscsi_create_def_hdr(phba, phwi_context, phwi_ctrlr, 28186733b39aSJayamohan Kallickal def_pdu_ring_sz); 28196733b39aSJayamohan Kallickal if (status != 0) { 28206733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 28216733b39aSJayamohan Kallickal "Default Header not created\n"); 28226733b39aSJayamohan Kallickal goto error; 28236733b39aSJayamohan Kallickal } 28246733b39aSJayamohan Kallickal 28256733b39aSJayamohan Kallickal status = beiscsi_create_def_data(phba, phwi_context, 28266733b39aSJayamohan Kallickal phwi_ctrlr, def_pdu_ring_sz); 28276733b39aSJayamohan Kallickal if (status != 0) { 28286733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 28296733b39aSJayamohan Kallickal "Default Data not created\n"); 28306733b39aSJayamohan Kallickal goto error; 28316733b39aSJayamohan Kallickal } 28326733b39aSJayamohan Kallickal 28336733b39aSJayamohan Kallickal status = beiscsi_post_pages(phba); 28346733b39aSJayamohan Kallickal if (status != 0) { 28356733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "Post SGL Pages Failed\n"); 28366733b39aSJayamohan Kallickal goto error; 28376733b39aSJayamohan Kallickal } 28386733b39aSJayamohan Kallickal 28396733b39aSJayamohan Kallickal status = beiscsi_create_wrb_rings(phba, phwi_context, phwi_ctrlr); 28406733b39aSJayamohan Kallickal if (status != 0) { 28416733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 28426733b39aSJayamohan Kallickal "WRB Rings not created\n"); 28436733b39aSJayamohan Kallickal goto error; 28446733b39aSJayamohan Kallickal } 28456733b39aSJayamohan Kallickal 28466733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "hwi_init_port success\n"); 28476733b39aSJayamohan Kallickal return 0; 28486733b39aSJayamohan Kallickal 28496733b39aSJayamohan Kallickal error: 28506733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "hwi_init_port failed"); 28516733b39aSJayamohan Kallickal hwi_cleanup(phba); 28526733b39aSJayamohan Kallickal return -ENOMEM; 28536733b39aSJayamohan Kallickal } 28546733b39aSJayamohan Kallickal 28556733b39aSJayamohan Kallickal static int hwi_init_controller(struct beiscsi_hba *phba) 28566733b39aSJayamohan Kallickal { 28576733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 28586733b39aSJayamohan Kallickal 28596733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 28606733b39aSJayamohan Kallickal if (1 == phba->init_mem[HWI_MEM_ADDN_CONTEXT].num_elements) { 28616733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt = (struct hwi_context_memory *)phba-> 28626733b39aSJayamohan Kallickal init_mem[HWI_MEM_ADDN_CONTEXT].mem_array[0].virtual_address; 28636733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, " phwi_ctrlr->phwi_ctxt=%p \n", 28646733b39aSJayamohan Kallickal phwi_ctrlr->phwi_ctxt); 28656733b39aSJayamohan Kallickal } else { 28666733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 28676733b39aSJayamohan Kallickal "HWI_MEM_ADDN_CONTEXT is more than one element." 28686733b39aSJayamohan Kallickal "Failing to load\n"); 28696733b39aSJayamohan Kallickal return -ENOMEM; 28706733b39aSJayamohan Kallickal } 28716733b39aSJayamohan Kallickal 28726733b39aSJayamohan Kallickal iscsi_init_global_templates(phba); 28736733b39aSJayamohan Kallickal beiscsi_init_wrb_handle(phba); 28746733b39aSJayamohan Kallickal hwi_init_async_pdu_ctx(phba); 28756733b39aSJayamohan Kallickal if (hwi_init_port(phba) != 0) { 28766733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 28776733b39aSJayamohan Kallickal "hwi_init_controller failed\n"); 28786733b39aSJayamohan Kallickal return -ENOMEM; 28796733b39aSJayamohan Kallickal } 28806733b39aSJayamohan Kallickal return 0; 28816733b39aSJayamohan Kallickal } 28826733b39aSJayamohan Kallickal 28836733b39aSJayamohan Kallickal static void beiscsi_free_mem(struct beiscsi_hba *phba) 28846733b39aSJayamohan Kallickal { 28856733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 28866733b39aSJayamohan Kallickal int i, j; 28876733b39aSJayamohan Kallickal 28886733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 28896733b39aSJayamohan Kallickal i = 0; 28906733b39aSJayamohan Kallickal j = 0; 28916733b39aSJayamohan Kallickal for (i = 0; i < SE_MEM_MAX; i++) { 28926733b39aSJayamohan Kallickal for (j = mem_descr->num_elements; j > 0; j--) { 28936733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 28946733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].size, 28956733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].virtual_address, 28966733b39aSJayamohan Kallickal mem_descr->mem_array[j - 1].bus_address. 28976733b39aSJayamohan Kallickal u.a64.address); 28986733b39aSJayamohan Kallickal } 28996733b39aSJayamohan Kallickal kfree(mem_descr->mem_array); 29006733b39aSJayamohan Kallickal mem_descr++; 29016733b39aSJayamohan Kallickal } 29026733b39aSJayamohan Kallickal kfree(phba->init_mem); 29036733b39aSJayamohan Kallickal kfree(phba->phwi_ctrlr); 29046733b39aSJayamohan Kallickal } 29056733b39aSJayamohan Kallickal 29066733b39aSJayamohan Kallickal static int beiscsi_init_controller(struct beiscsi_hba *phba) 29076733b39aSJayamohan Kallickal { 29086733b39aSJayamohan Kallickal int ret = -ENOMEM; 29096733b39aSJayamohan Kallickal 29106733b39aSJayamohan Kallickal ret = beiscsi_get_memory(phba); 29116733b39aSJayamohan Kallickal if (ret < 0) { 29126733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe -" 29136733b39aSJayamohan Kallickal "Failed in beiscsi_alloc_memory \n"); 29146733b39aSJayamohan Kallickal return ret; 29156733b39aSJayamohan Kallickal } 29166733b39aSJayamohan Kallickal 29176733b39aSJayamohan Kallickal ret = hwi_init_controller(phba); 29186733b39aSJayamohan Kallickal if (ret) 29196733b39aSJayamohan Kallickal goto free_init; 29206733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "Return success from beiscsi_init_controller"); 29216733b39aSJayamohan Kallickal return 0; 29226733b39aSJayamohan Kallickal 29236733b39aSJayamohan Kallickal free_init: 29246733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 29256733b39aSJayamohan Kallickal return -ENOMEM; 29266733b39aSJayamohan Kallickal } 29276733b39aSJayamohan Kallickal 29286733b39aSJayamohan Kallickal static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba) 29296733b39aSJayamohan Kallickal { 29306733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg; 29316733b39aSJayamohan Kallickal struct sgl_handle *psgl_handle; 29326733b39aSJayamohan Kallickal struct iscsi_sge *pfrag; 29336733b39aSJayamohan Kallickal unsigned int arr_index, i, idx; 29346733b39aSJayamohan Kallickal 29356733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl = 0; 29366733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl = 0; 2937bfead3b2SJayamohan Kallickal 293835e66019SJayamohan Kallickal if (ring_mode) { 293935e66019SJayamohan Kallickal phba->sgl_hndl_array = kzalloc(sizeof(struct sgl_handle *) * 294035e66019SJayamohan Kallickal phba->params.icds_per_ctrl, 294135e66019SJayamohan Kallickal GFP_KERNEL); 294235e66019SJayamohan Kallickal if (!phba->sgl_hndl_array) { 294335e66019SJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 294435e66019SJayamohan Kallickal "Mem Alloc Failed. Failing to load\n"); 294535e66019SJayamohan Kallickal return -ENOMEM; 294635e66019SJayamohan Kallickal } 294735e66019SJayamohan Kallickal } 294835e66019SJayamohan Kallickal 29496733b39aSJayamohan Kallickal mem_descr_sglh = phba->init_mem; 29506733b39aSJayamohan Kallickal mem_descr_sglh += HWI_MEM_SGLH; 29516733b39aSJayamohan Kallickal if (1 == mem_descr_sglh->num_elements) { 29526733b39aSJayamohan Kallickal phba->io_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) * 29536733b39aSJayamohan Kallickal phba->params.ios_per_ctrl, 29546733b39aSJayamohan Kallickal GFP_KERNEL); 29556733b39aSJayamohan Kallickal if (!phba->io_sgl_hndl_base) { 295635e66019SJayamohan Kallickal if (ring_mode) 295735e66019SJayamohan Kallickal kfree(phba->sgl_hndl_array); 29586733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 29596733b39aSJayamohan Kallickal "Mem Alloc Failed. Failing to load\n"); 29606733b39aSJayamohan Kallickal return -ENOMEM; 29616733b39aSJayamohan Kallickal } 29626733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) * 29636733b39aSJayamohan Kallickal (phba->params.icds_per_ctrl - 29646733b39aSJayamohan Kallickal phba->params.ios_per_ctrl), 29656733b39aSJayamohan Kallickal GFP_KERNEL); 29666733b39aSJayamohan Kallickal if (!phba->eh_sgl_hndl_base) { 29676733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 29686733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 29696733b39aSJayamohan Kallickal "Mem Alloc Failed. Failing to load\n"); 29706733b39aSJayamohan Kallickal return -ENOMEM; 29716733b39aSJayamohan Kallickal } 29726733b39aSJayamohan Kallickal } else { 29736733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 29746733b39aSJayamohan Kallickal "HWI_MEM_SGLH is more than one element." 29756733b39aSJayamohan Kallickal "Failing to load\n"); 29766733b39aSJayamohan Kallickal return -ENOMEM; 29776733b39aSJayamohan Kallickal } 29786733b39aSJayamohan Kallickal 29796733b39aSJayamohan Kallickal arr_index = 0; 29806733b39aSJayamohan Kallickal idx = 0; 29816733b39aSJayamohan Kallickal while (idx < mem_descr_sglh->num_elements) { 29826733b39aSJayamohan Kallickal psgl_handle = mem_descr_sglh->mem_array[idx].virtual_address; 29836733b39aSJayamohan Kallickal 29846733b39aSJayamohan Kallickal for (i = 0; i < (mem_descr_sglh->mem_array[idx].size / 29856733b39aSJayamohan Kallickal sizeof(struct sgl_handle)); i++) { 29866733b39aSJayamohan Kallickal if (arr_index < phba->params.ios_per_ctrl) { 29876733b39aSJayamohan Kallickal phba->io_sgl_hndl_base[arr_index] = psgl_handle; 29886733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl++; 29896733b39aSJayamohan Kallickal arr_index++; 29906733b39aSJayamohan Kallickal } else { 29916733b39aSJayamohan Kallickal phba->eh_sgl_hndl_base[arr_index - 29926733b39aSJayamohan Kallickal phba->params.ios_per_ctrl] = 29936733b39aSJayamohan Kallickal psgl_handle; 29946733b39aSJayamohan Kallickal arr_index++; 29956733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl++; 29966733b39aSJayamohan Kallickal } 29976733b39aSJayamohan Kallickal psgl_handle++; 29986733b39aSJayamohan Kallickal } 29996733b39aSJayamohan Kallickal idx++; 30006733b39aSJayamohan Kallickal } 30016733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, 30026733b39aSJayamohan Kallickal "phba->io_sgl_hndl_avbl=%d" 30036733b39aSJayamohan Kallickal "phba->eh_sgl_hndl_avbl=%d \n", 30046733b39aSJayamohan Kallickal phba->io_sgl_hndl_avbl, 30056733b39aSJayamohan Kallickal phba->eh_sgl_hndl_avbl); 30066733b39aSJayamohan Kallickal mem_descr_sg = phba->init_mem; 30076733b39aSJayamohan Kallickal mem_descr_sg += HWI_MEM_SGE; 30086733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "\n mem_descr_sg->num_elements=%d \n", 30096733b39aSJayamohan Kallickal mem_descr_sg->num_elements); 30106733b39aSJayamohan Kallickal arr_index = 0; 30116733b39aSJayamohan Kallickal idx = 0; 30126733b39aSJayamohan Kallickal while (idx < mem_descr_sg->num_elements) { 30136733b39aSJayamohan Kallickal pfrag = mem_descr_sg->mem_array[idx].virtual_address; 30146733b39aSJayamohan Kallickal 30156733b39aSJayamohan Kallickal for (i = 0; 30166733b39aSJayamohan Kallickal i < (mem_descr_sg->mem_array[idx].size) / 30176733b39aSJayamohan Kallickal (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io); 30186733b39aSJayamohan Kallickal i++) { 30196733b39aSJayamohan Kallickal if (arr_index < phba->params.ios_per_ctrl) 30206733b39aSJayamohan Kallickal psgl_handle = phba->io_sgl_hndl_base[arr_index]; 30216733b39aSJayamohan Kallickal else 30226733b39aSJayamohan Kallickal psgl_handle = phba->eh_sgl_hndl_base[arr_index - 30236733b39aSJayamohan Kallickal phba->params.ios_per_ctrl]; 30246733b39aSJayamohan Kallickal psgl_handle->pfrag = pfrag; 30256733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, pfrag, 0); 30266733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0); 30276733b39aSJayamohan Kallickal pfrag += phba->params.num_sge_per_io; 30286733b39aSJayamohan Kallickal psgl_handle->sgl_index = 30297da50879SJayamohan Kallickal phba->fw_config.iscsi_icd_start + arr_index++; 30306733b39aSJayamohan Kallickal } 30316733b39aSJayamohan Kallickal idx++; 30326733b39aSJayamohan Kallickal } 30336733b39aSJayamohan Kallickal phba->io_sgl_free_index = 0; 30346733b39aSJayamohan Kallickal phba->io_sgl_alloc_index = 0; 30356733b39aSJayamohan Kallickal phba->eh_sgl_free_index = 0; 30366733b39aSJayamohan Kallickal phba->eh_sgl_alloc_index = 0; 30376733b39aSJayamohan Kallickal return 0; 30386733b39aSJayamohan Kallickal } 30396733b39aSJayamohan Kallickal 30406733b39aSJayamohan Kallickal static int hba_setup_cid_tbls(struct beiscsi_hba *phba) 30416733b39aSJayamohan Kallickal { 30426733b39aSJayamohan Kallickal int i, new_cid; 30436733b39aSJayamohan Kallickal 3044c2462288SJayamohan Kallickal phba->cid_array = kzalloc(sizeof(void *) * phba->params.cxns_per_ctrl, 30456733b39aSJayamohan Kallickal GFP_KERNEL); 30466733b39aSJayamohan Kallickal if (!phba->cid_array) { 30476733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 30486733b39aSJayamohan Kallickal "Failed to allocate memory in " 30496733b39aSJayamohan Kallickal "hba_setup_cid_tbls\n"); 30506733b39aSJayamohan Kallickal return -ENOMEM; 30516733b39aSJayamohan Kallickal } 3052c2462288SJayamohan Kallickal phba->ep_array = kzalloc(sizeof(struct iscsi_endpoint *) * 30536733b39aSJayamohan Kallickal phba->params.cxns_per_ctrl * 2, GFP_KERNEL); 30546733b39aSJayamohan Kallickal if (!phba->ep_array) { 30556733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 30566733b39aSJayamohan Kallickal "Failed to allocate memory in " 30576733b39aSJayamohan Kallickal "hba_setup_cid_tbls \n"); 30586733b39aSJayamohan Kallickal kfree(phba->cid_array); 30596733b39aSJayamohan Kallickal return -ENOMEM; 30606733b39aSJayamohan Kallickal } 30617da50879SJayamohan Kallickal new_cid = phba->fw_config.iscsi_cid_start; 30626733b39aSJayamohan Kallickal for (i = 0; i < phba->params.cxns_per_ctrl; i++) { 30636733b39aSJayamohan Kallickal phba->cid_array[i] = new_cid; 30646733b39aSJayamohan Kallickal new_cid += 2; 30656733b39aSJayamohan Kallickal } 30666733b39aSJayamohan Kallickal phba->avlbl_cids = phba->params.cxns_per_ctrl; 30676733b39aSJayamohan Kallickal return 0; 30686733b39aSJayamohan Kallickal } 30696733b39aSJayamohan Kallickal 30706733b39aSJayamohan Kallickal static unsigned char hwi_enable_intr(struct beiscsi_hba *phba) 30716733b39aSJayamohan Kallickal { 30726733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 30736733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 30746733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 30756733b39aSJayamohan Kallickal struct be_queue_info *eq; 30766733b39aSJayamohan Kallickal u8 __iomem *addr; 3077bfead3b2SJayamohan Kallickal u32 reg, i; 30786733b39aSJayamohan Kallickal u32 enabled; 30796733b39aSJayamohan Kallickal 30806733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 30816733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 30826733b39aSJayamohan Kallickal 30836733b39aSJayamohan Kallickal addr = (u8 __iomem *) ((u8 __iomem *) ctrl->pcicfg + 30846733b39aSJayamohan Kallickal PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET); 30856733b39aSJayamohan Kallickal reg = ioread32(addr); 30866733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "reg =x%08x \n", reg); 30876733b39aSJayamohan Kallickal 30886733b39aSJayamohan Kallickal enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 30896733b39aSJayamohan Kallickal if (!enabled) { 30906733b39aSJayamohan Kallickal reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 30916733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "reg =x%08x addr=%p \n", reg, addr); 30926733b39aSJayamohan Kallickal iowrite32(reg, addr); 3093bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) { 3094bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 30956733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "eq->id=%d \n", eq->id); 30966733b39aSJayamohan Kallickal hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1); 3097bfead3b2SJayamohan Kallickal } 30986733b39aSJayamohan Kallickal } else 30996733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 31006733b39aSJayamohan Kallickal "In hwi_enable_intr, Not Enabled \n"); 31016733b39aSJayamohan Kallickal return true; 31026733b39aSJayamohan Kallickal } 31036733b39aSJayamohan Kallickal 31046733b39aSJayamohan Kallickal static void hwi_disable_intr(struct beiscsi_hba *phba) 31056733b39aSJayamohan Kallickal { 31066733b39aSJayamohan Kallickal struct be_ctrl_info *ctrl = &phba->ctrl; 31076733b39aSJayamohan Kallickal 31086733b39aSJayamohan Kallickal u8 __iomem *addr = ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET; 31096733b39aSJayamohan Kallickal u32 reg = ioread32(addr); 31106733b39aSJayamohan Kallickal 31116733b39aSJayamohan Kallickal u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 31126733b39aSJayamohan Kallickal if (enabled) { 31136733b39aSJayamohan Kallickal reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 31146733b39aSJayamohan Kallickal iowrite32(reg, addr); 31156733b39aSJayamohan Kallickal } else 31166733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 31176733b39aSJayamohan Kallickal "In hwi_disable_intr, Already Disabled \n"); 31186733b39aSJayamohan Kallickal } 31196733b39aSJayamohan Kallickal 31206733b39aSJayamohan Kallickal static int beiscsi_init_port(struct beiscsi_hba *phba) 31216733b39aSJayamohan Kallickal { 31226733b39aSJayamohan Kallickal int ret; 31236733b39aSJayamohan Kallickal 31246733b39aSJayamohan Kallickal ret = beiscsi_init_controller(phba); 31256733b39aSJayamohan Kallickal if (ret < 0) { 31266733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 31276733b39aSJayamohan Kallickal "beiscsi_dev_probe - Failed in" 31286733b39aSJayamohan Kallickal "beiscsi_init_controller \n"); 31296733b39aSJayamohan Kallickal return ret; 31306733b39aSJayamohan Kallickal } 31316733b39aSJayamohan Kallickal ret = beiscsi_init_sgl_handle(phba); 31326733b39aSJayamohan Kallickal if (ret < 0) { 31336733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 31346733b39aSJayamohan Kallickal "beiscsi_dev_probe - Failed in" 31356733b39aSJayamohan Kallickal "beiscsi_init_sgl_handle \n"); 31366733b39aSJayamohan Kallickal goto do_cleanup_ctrlr; 31376733b39aSJayamohan Kallickal } 31386733b39aSJayamohan Kallickal 31396733b39aSJayamohan Kallickal if (hba_setup_cid_tbls(phba)) { 31406733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 31416733b39aSJayamohan Kallickal "Failed in hba_setup_cid_tbls\n"); 314235e66019SJayamohan Kallickal if (ring_mode) 314335e66019SJayamohan Kallickal kfree(phba->sgl_hndl_array); 31446733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 31456733b39aSJayamohan Kallickal kfree(phba->eh_sgl_hndl_base); 31466733b39aSJayamohan Kallickal goto do_cleanup_ctrlr; 31476733b39aSJayamohan Kallickal } 31486733b39aSJayamohan Kallickal 31496733b39aSJayamohan Kallickal return ret; 31506733b39aSJayamohan Kallickal 31516733b39aSJayamohan Kallickal do_cleanup_ctrlr: 31526733b39aSJayamohan Kallickal hwi_cleanup(phba); 31536733b39aSJayamohan Kallickal return ret; 31546733b39aSJayamohan Kallickal } 31556733b39aSJayamohan Kallickal 31566733b39aSJayamohan Kallickal static void hwi_purge_eq(struct beiscsi_hba *phba) 31576733b39aSJayamohan Kallickal { 31586733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 31596733b39aSJayamohan Kallickal struct hwi_context_memory *phwi_context; 31606733b39aSJayamohan Kallickal struct be_queue_info *eq; 31616733b39aSJayamohan Kallickal struct be_eq_entry *eqe = NULL; 3162bfead3b2SJayamohan Kallickal int i, eq_msix; 31636733b39aSJayamohan Kallickal 31646733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 31656733b39aSJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 3166bfead3b2SJayamohan Kallickal if (phba->msix_enabled) 3167bfead3b2SJayamohan Kallickal eq_msix = 1; 3168bfead3b2SJayamohan Kallickal else 3169bfead3b2SJayamohan Kallickal eq_msix = 0; 3170bfead3b2SJayamohan Kallickal 3171bfead3b2SJayamohan Kallickal for (i = 0; i < (phba->num_cpus + eq_msix); i++) { 3172bfead3b2SJayamohan Kallickal eq = &phwi_context->be_eq[i].q; 31736733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 31746733b39aSJayamohan Kallickal 31756733b39aSJayamohan Kallickal while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] 31766733b39aSJayamohan Kallickal & EQE_VALID_MASK) { 31776733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0); 31786733b39aSJayamohan Kallickal queue_tail_inc(eq); 31796733b39aSJayamohan Kallickal eqe = queue_tail_node(eq); 31806733b39aSJayamohan Kallickal } 31816733b39aSJayamohan Kallickal } 3182bfead3b2SJayamohan Kallickal } 31836733b39aSJayamohan Kallickal 31846733b39aSJayamohan Kallickal static void beiscsi_clean_port(struct beiscsi_hba *phba) 31856733b39aSJayamohan Kallickal { 31866733b39aSJayamohan Kallickal unsigned char mgmt_status; 31876733b39aSJayamohan Kallickal 31886733b39aSJayamohan Kallickal mgmt_status = mgmt_epfw_cleanup(phba, CMD_CONNECTION_CHUTE_0); 31896733b39aSJayamohan Kallickal if (mgmt_status) 31906733b39aSJayamohan Kallickal shost_printk(KERN_WARNING, phba->shost, 31916733b39aSJayamohan Kallickal "mgmt_epfw_cleanup FAILED \n"); 31926733b39aSJayamohan Kallickal hwi_cleanup(phba); 31936733b39aSJayamohan Kallickal hwi_purge_eq(phba); 319435e66019SJayamohan Kallickal if (ring_mode) 319535e66019SJayamohan Kallickal kfree(phba->sgl_hndl_array); 31966733b39aSJayamohan Kallickal kfree(phba->io_sgl_hndl_base); 31976733b39aSJayamohan Kallickal kfree(phba->eh_sgl_hndl_base); 31986733b39aSJayamohan Kallickal kfree(phba->cid_array); 31996733b39aSJayamohan Kallickal kfree(phba->ep_array); 32006733b39aSJayamohan Kallickal } 32016733b39aSJayamohan Kallickal 32026733b39aSJayamohan Kallickal void 32036733b39aSJayamohan Kallickal beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn, 32046733b39aSJayamohan Kallickal struct beiscsi_offload_params *params) 32056733b39aSJayamohan Kallickal { 32066733b39aSJayamohan Kallickal struct wrb_handle *pwrb_handle; 32076733b39aSJayamohan Kallickal struct iscsi_target_context_update_wrb *pwrb = NULL; 32086733b39aSJayamohan Kallickal struct be_mem_descriptor *mem_descr; 32096733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 32106733b39aSJayamohan Kallickal u32 doorbell = 0; 32116733b39aSJayamohan Kallickal 32126733b39aSJayamohan Kallickal /* 32136733b39aSJayamohan Kallickal * We can always use 0 here because it is reserved by libiscsi for 32146733b39aSJayamohan Kallickal * login/startup related tasks. 32156733b39aSJayamohan Kallickal */ 32167da50879SJayamohan Kallickal pwrb_handle = alloc_wrb_handle(phba, (beiscsi_conn->beiscsi_conn_cid - 3217d5431488SJayamohan Kallickal phba->fw_config.iscsi_cid_start)); 32186733b39aSJayamohan Kallickal pwrb = (struct iscsi_target_context_update_wrb *)pwrb_handle->pwrb; 32196733b39aSJayamohan Kallickal memset(pwrb, 0, sizeof(*pwrb)); 32206733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 32216733b39aSJayamohan Kallickal max_burst_length, pwrb, params->dw[offsetof 32226733b39aSJayamohan Kallickal (struct amap_beiscsi_offload_params, 32236733b39aSJayamohan Kallickal max_burst_length) / 32]); 32246733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 32256733b39aSJayamohan Kallickal max_send_data_segment_length, pwrb, 32266733b39aSJayamohan Kallickal params->dw[offsetof(struct amap_beiscsi_offload_params, 32276733b39aSJayamohan Kallickal max_send_data_segment_length) / 32]); 32286733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 32296733b39aSJayamohan Kallickal first_burst_length, 32306733b39aSJayamohan Kallickal pwrb, 32316733b39aSJayamohan Kallickal params->dw[offsetof(struct amap_beiscsi_offload_params, 32326733b39aSJayamohan Kallickal first_burst_length) / 32]); 32336733b39aSJayamohan Kallickal 32346733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, erl, pwrb, 32356733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 32366733b39aSJayamohan Kallickal erl) / 32] & OFFLD_PARAMS_ERL)); 32376733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, dde, pwrb, 32386733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 32396733b39aSJayamohan Kallickal dde) / 32] & OFFLD_PARAMS_DDE) >> 2); 32406733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, hde, pwrb, 32416733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 32426733b39aSJayamohan Kallickal hde) / 32] & OFFLD_PARAMS_HDE) >> 3); 32436733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ir2t, pwrb, 32446733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 32456733b39aSJayamohan Kallickal ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4); 32466733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, imd, pwrb, 32476733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 32486733b39aSJayamohan Kallickal imd) / 32] & OFFLD_PARAMS_IMD) >> 5); 32496733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, stat_sn, 32506733b39aSJayamohan Kallickal pwrb, 32516733b39aSJayamohan Kallickal (params->dw[offsetof(struct amap_beiscsi_offload_params, 32526733b39aSJayamohan Kallickal exp_statsn) / 32] + 1)); 32536733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, type, pwrb, 32546733b39aSJayamohan Kallickal 0x7); 32556733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, wrb_idx, 32566733b39aSJayamohan Kallickal pwrb, pwrb_handle->wrb_index); 32576733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ptr2nextwrb, 32586733b39aSJayamohan Kallickal pwrb, pwrb_handle->nxt_wrb_index); 32596733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 32606733b39aSJayamohan Kallickal session_state, pwrb, 0); 32616733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, compltonack, 32626733b39aSJayamohan Kallickal pwrb, 1); 32636733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, notpredblq, 32646733b39aSJayamohan Kallickal pwrb, 0); 32656733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, mode, pwrb, 32666733b39aSJayamohan Kallickal 0); 32676733b39aSJayamohan Kallickal 32686733b39aSJayamohan Kallickal mem_descr = phba->init_mem; 32696733b39aSJayamohan Kallickal mem_descr += ISCSI_MEM_GLOBAL_HEADER; 32706733b39aSJayamohan Kallickal 32716733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 32726733b39aSJayamohan Kallickal pad_buffer_addr_hi, pwrb, 32736733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a32.address_hi); 32746733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, 32756733b39aSJayamohan Kallickal pad_buffer_addr_lo, pwrb, 32766733b39aSJayamohan Kallickal mem_descr->mem_array[0].bus_address.u.a32.address_lo); 32776733b39aSJayamohan Kallickal 32786733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_target_context_update_wrb)); 32796733b39aSJayamohan Kallickal 32806733b39aSJayamohan Kallickal doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 328135e66019SJayamohan Kallickal if (!ring_mode) 3282bfead3b2SJayamohan Kallickal doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK) 3283bfead3b2SJayamohan Kallickal << DB_DEF_PDU_WRB_INDEX_SHIFT; 32846733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 32856733b39aSJayamohan Kallickal 32866733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); 32876733b39aSJayamohan Kallickal } 32886733b39aSJayamohan Kallickal 32896733b39aSJayamohan Kallickal static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt, 32906733b39aSJayamohan Kallickal int *index, int *age) 32916733b39aSJayamohan Kallickal { 3292bfead3b2SJayamohan Kallickal *index = (int)itt; 32936733b39aSJayamohan Kallickal if (age) 32946733b39aSJayamohan Kallickal *age = conn->session->age; 32956733b39aSJayamohan Kallickal } 32966733b39aSJayamohan Kallickal 32976733b39aSJayamohan Kallickal /** 32986733b39aSJayamohan Kallickal * beiscsi_alloc_pdu - allocates pdu and related resources 32996733b39aSJayamohan Kallickal * @task: libiscsi task 33006733b39aSJayamohan Kallickal * @opcode: opcode of pdu for task 33016733b39aSJayamohan Kallickal * 33026733b39aSJayamohan Kallickal * This is called with the session lock held. It will allocate 33036733b39aSJayamohan Kallickal * the wrb and sgl if needed for the command. And it will prep 33046733b39aSJayamohan Kallickal * the pdu's itt. beiscsi_parse_pdu will later translate 33056733b39aSJayamohan Kallickal * the pdu itt to the libiscsi task itt. 33066733b39aSJayamohan Kallickal */ 33076733b39aSJayamohan Kallickal static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 33086733b39aSJayamohan Kallickal { 33096733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 33106733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 33116733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 33126733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 33136733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 33146733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 33156733b39aSJayamohan Kallickal itt_t itt; 33162afc95bfSJayamohan Kallickal struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess; 33172afc95bfSJayamohan Kallickal dma_addr_t paddr; 33186733b39aSJayamohan Kallickal 33192afc95bfSJayamohan Kallickal io_task->cmd_bhs = pci_pool_alloc(beiscsi_sess->bhs_pool, 33202afc95bfSJayamohan Kallickal GFP_KERNEL, &paddr); 33212afc95bfSJayamohan Kallickal if (!io_task->cmd_bhs) 33222afc95bfSJayamohan Kallickal return -ENOMEM; 33232afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address = paddr; 3324bfead3b2SJayamohan Kallickal io_task->libiscsi_itt = (itt_t)task->itt; 33256733b39aSJayamohan Kallickal io_task->pwrb_handle = alloc_wrb_handle(phba, 33267da50879SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid - 3327d5431488SJayamohan Kallickal phba->fw_config.iscsi_cid_start 3328d5431488SJayamohan Kallickal ); 33296733b39aSJayamohan Kallickal io_task->conn = beiscsi_conn; 33306733b39aSJayamohan Kallickal 33316733b39aSJayamohan Kallickal task->hdr = (struct iscsi_hdr *)&io_task->cmd_bhs->iscsi_hdr; 33326733b39aSJayamohan Kallickal task->hdr_max = sizeof(struct be_cmd_bhs); 33336733b39aSJayamohan Kallickal 33346733b39aSJayamohan Kallickal if (task->sc) { 33356733b39aSJayamohan Kallickal spin_lock(&phba->io_sgl_lock); 33366733b39aSJayamohan Kallickal io_task->psgl_handle = alloc_io_sgl_handle(phba); 33376733b39aSJayamohan Kallickal spin_unlock(&phba->io_sgl_lock); 33382afc95bfSJayamohan Kallickal if (!io_task->psgl_handle) 33392afc95bfSJayamohan Kallickal goto free_hndls; 33406733b39aSJayamohan Kallickal } else { 33416733b39aSJayamohan Kallickal io_task->scsi_cmnd = NULL; 3342d7aea67bSJayamohan Kallickal if ((opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) { 33436733b39aSJayamohan Kallickal if (!beiscsi_conn->login_in_progress) { 33446733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 33456733b39aSJayamohan Kallickal io_task->psgl_handle = (struct sgl_handle *) 33466733b39aSJayamohan Kallickal alloc_mgmt_sgl_handle(phba); 33476733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 33482afc95bfSJayamohan Kallickal if (!io_task->psgl_handle) 33492afc95bfSJayamohan Kallickal goto free_hndls; 33502afc95bfSJayamohan Kallickal 33516733b39aSJayamohan Kallickal beiscsi_conn->login_in_progress = 1; 33526733b39aSJayamohan Kallickal beiscsi_conn->plogin_sgl_handle = 33536733b39aSJayamohan Kallickal io_task->psgl_handle; 33546733b39aSJayamohan Kallickal } else { 33556733b39aSJayamohan Kallickal io_task->psgl_handle = 33566733b39aSJayamohan Kallickal beiscsi_conn->plogin_sgl_handle; 33576733b39aSJayamohan Kallickal } 33586733b39aSJayamohan Kallickal } else { 33596733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 33606733b39aSJayamohan Kallickal io_task->psgl_handle = alloc_mgmt_sgl_handle(phba); 33616733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 33622afc95bfSJayamohan Kallickal if (!io_task->psgl_handle) 33632afc95bfSJayamohan Kallickal goto free_hndls; 33646733b39aSJayamohan Kallickal } 33656733b39aSJayamohan Kallickal } 3366bfead3b2SJayamohan Kallickal itt = (itt_t) cpu_to_be32(((unsigned int)io_task->pwrb_handle-> 3367bfead3b2SJayamohan Kallickal wrb_index << 16) | (unsigned int) 3368bfead3b2SJayamohan Kallickal (io_task->psgl_handle->sgl_index)); 336935e66019SJayamohan Kallickal if (ring_mode) { 337035e66019SJayamohan Kallickal phba->sgl_hndl_array[io_task->psgl_handle->sgl_index - 33717da50879SJayamohan Kallickal phba->fw_config.iscsi_icd_start] = 337235e66019SJayamohan Kallickal io_task->psgl_handle; 337335e66019SJayamohan Kallickal io_task->psgl_handle->task = task; 33747da50879SJayamohan Kallickal io_task->psgl_handle->cid = beiscsi_conn->beiscsi_conn_cid - 33757da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start; 337635e66019SJayamohan Kallickal } else 3377bfead3b2SJayamohan Kallickal io_task->pwrb_handle->pio_handle = task; 3378bfead3b2SJayamohan Kallickal 33796733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.itt = itt; 33806733b39aSJayamohan Kallickal return 0; 33812afc95bfSJayamohan Kallickal 33822afc95bfSJayamohan Kallickal free_hndls: 33832afc95bfSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 33847da50879SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[ 33857da50879SJayamohan Kallickal beiscsi_conn->beiscsi_conn_cid - 33867da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 33872afc95bfSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle); 33882afc95bfSJayamohan Kallickal io_task->pwrb_handle = NULL; 33892afc95bfSJayamohan Kallickal pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs, 33902afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address); 33912afc95bfSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "Alloc of SGL_ICD Failed \n"); 33922afc95bfSJayamohan Kallickal return -ENOMEM; 33936733b39aSJayamohan Kallickal } 33946733b39aSJayamohan Kallickal 33956733b39aSJayamohan Kallickal static void beiscsi_cleanup_task(struct iscsi_task *task) 33966733b39aSJayamohan Kallickal { 33976733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 33986733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 33996733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 34006733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 34012afc95bfSJayamohan Kallickal struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess; 34026733b39aSJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 34036733b39aSJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 34046733b39aSJayamohan Kallickal 34056733b39aSJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 34067da50879SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[beiscsi_conn->beiscsi_conn_cid 34077da50879SJayamohan Kallickal - phba->fw_config.iscsi_cid_start]; 34086733b39aSJayamohan Kallickal if (io_task->pwrb_handle) { 34096733b39aSJayamohan Kallickal free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle); 34106733b39aSJayamohan Kallickal io_task->pwrb_handle = NULL; 34116733b39aSJayamohan Kallickal } 34126733b39aSJayamohan Kallickal 34132afc95bfSJayamohan Kallickal if (io_task->cmd_bhs) { 34142afc95bfSJayamohan Kallickal pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs, 34152afc95bfSJayamohan Kallickal io_task->bhs_pa.u.a64.address); 34162afc95bfSJayamohan Kallickal } 34172afc95bfSJayamohan Kallickal 34186733b39aSJayamohan Kallickal if (task->sc) { 34196733b39aSJayamohan Kallickal if (io_task->psgl_handle) { 34206733b39aSJayamohan Kallickal spin_lock(&phba->io_sgl_lock); 34216733b39aSJayamohan Kallickal free_io_sgl_handle(phba, io_task->psgl_handle); 34226733b39aSJayamohan Kallickal spin_unlock(&phba->io_sgl_lock); 34236733b39aSJayamohan Kallickal io_task->psgl_handle = NULL; 34246733b39aSJayamohan Kallickal } 34256733b39aSJayamohan Kallickal } else { 34266733b39aSJayamohan Kallickal if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) 34276733b39aSJayamohan Kallickal return; 34286733b39aSJayamohan Kallickal if (io_task->psgl_handle) { 34296733b39aSJayamohan Kallickal spin_lock(&phba->mgmt_sgl_lock); 34306733b39aSJayamohan Kallickal free_mgmt_sgl_handle(phba, io_task->psgl_handle); 34316733b39aSJayamohan Kallickal spin_unlock(&phba->mgmt_sgl_lock); 34326733b39aSJayamohan Kallickal io_task->psgl_handle = NULL; 34336733b39aSJayamohan Kallickal } 34346733b39aSJayamohan Kallickal } 34356733b39aSJayamohan Kallickal } 34366733b39aSJayamohan Kallickal 34376733b39aSJayamohan Kallickal static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg, 34386733b39aSJayamohan Kallickal unsigned int num_sg, unsigned int xferlen, 34396733b39aSJayamohan Kallickal unsigned int writedir) 34406733b39aSJayamohan Kallickal { 34416733b39aSJayamohan Kallickal 34426733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 34436733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 34446733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 34456733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 34466733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 34476733b39aSJayamohan Kallickal unsigned int doorbell = 0; 34486733b39aSJayamohan Kallickal 34496733b39aSJayamohan Kallickal pwrb = io_task->pwrb_handle->pwrb; 34506733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.exp_statsn = 0; 34516733b39aSJayamohan Kallickal io_task->bhs_len = sizeof(struct be_cmd_bhs); 34526733b39aSJayamohan Kallickal 34536733b39aSJayamohan Kallickal if (writedir) { 34546733b39aSJayamohan Kallickal memset(&io_task->cmd_bhs->iscsi_data_pdu, 0, 48); 34556733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, itt, 34566733b39aSJayamohan Kallickal &io_task->cmd_bhs->iscsi_data_pdu, 34576733b39aSJayamohan Kallickal (unsigned int)io_task->cmd_bhs->iscsi_hdr.itt); 34586733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, opcode, 34596733b39aSJayamohan Kallickal &io_task->cmd_bhs->iscsi_data_pdu, 34606733b39aSJayamohan Kallickal ISCSI_OPCODE_SCSI_DATA_OUT); 34616733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_pdu_data_out, final_bit, 34626733b39aSJayamohan Kallickal &io_task->cmd_bhs->iscsi_data_pdu, 1); 346335e66019SJayamohan Kallickal if (ring_mode) 346435e66019SJayamohan Kallickal io_task->psgl_handle->type = INI_WR_CMD; 346535e66019SJayamohan Kallickal else 3466bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3467bfead3b2SJayamohan Kallickal INI_WR_CMD); 34686733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1); 34696733b39aSJayamohan Kallickal } else { 347035e66019SJayamohan Kallickal if (ring_mode) 347135e66019SJayamohan Kallickal io_task->psgl_handle->type = INI_RD_CMD; 347235e66019SJayamohan Kallickal else 3473bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3474bfead3b2SJayamohan Kallickal INI_RD_CMD); 34756733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0); 34766733b39aSJayamohan Kallickal } 34776733b39aSJayamohan Kallickal memcpy(&io_task->cmd_bhs->iscsi_data_pdu. 34786733b39aSJayamohan Kallickal dw[offsetof(struct amap_pdu_data_out, lun) / 32], 34796733b39aSJayamohan Kallickal io_task->cmd_bhs->iscsi_hdr.lun, sizeof(struct scsi_lun)); 34806733b39aSJayamohan Kallickal 34816733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, lun, pwrb, 34826733b39aSJayamohan Kallickal cpu_to_be16((unsigned short)io_task->cmd_bhs->iscsi_hdr. 34836733b39aSJayamohan Kallickal lun[0])); 34846733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, xferlen); 34856733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb, 34866733b39aSJayamohan Kallickal io_task->pwrb_handle->wrb_index); 34876733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 34886733b39aSJayamohan Kallickal be32_to_cpu(task->cmdsn)); 34896733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb, 34906733b39aSJayamohan Kallickal io_task->psgl_handle->sgl_index); 34916733b39aSJayamohan Kallickal 34926733b39aSJayamohan Kallickal hwi_write_sgl(pwrb, sg, num_sg, io_task); 34936733b39aSJayamohan Kallickal 34946733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb, 34956733b39aSJayamohan Kallickal io_task->pwrb_handle->nxt_wrb_index); 34966733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb)); 34976733b39aSJayamohan Kallickal 34986733b39aSJayamohan Kallickal doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK; 349935e66019SJayamohan Kallickal if (!ring_mode) 35006733b39aSJayamohan Kallickal doorbell |= (io_task->pwrb_handle->wrb_index & 35016733b39aSJayamohan Kallickal DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; 35026733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 35036733b39aSJayamohan Kallickal 35046733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); 35056733b39aSJayamohan Kallickal return 0; 35066733b39aSJayamohan Kallickal } 35076733b39aSJayamohan Kallickal 35086733b39aSJayamohan Kallickal static int beiscsi_mtask(struct iscsi_task *task) 35096733b39aSJayamohan Kallickal { 35106733b39aSJayamohan Kallickal struct beiscsi_io_task *aborted_io_task, *io_task = task->dd_data; 35116733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 35126733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 35136733b39aSJayamohan Kallickal struct beiscsi_hba *phba = beiscsi_conn->phba; 3514bfead3b2SJayamohan Kallickal struct iscsi_session *session; 35156733b39aSJayamohan Kallickal struct iscsi_wrb *pwrb = NULL; 3516bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 3517bfead3b2SJayamohan Kallickal struct hwi_wrb_context *pwrb_context; 3518bfead3b2SJayamohan Kallickal struct wrb_handle *pwrb_handle; 35196733b39aSJayamohan Kallickal unsigned int doorbell = 0; 3520bfead3b2SJayamohan Kallickal unsigned int i, cid; 35216733b39aSJayamohan Kallickal struct iscsi_task *aborted_task; 35226733b39aSJayamohan Kallickal 3523bfead3b2SJayamohan Kallickal cid = beiscsi_conn->beiscsi_conn_cid; 35246733b39aSJayamohan Kallickal pwrb = io_task->pwrb_handle->pwrb; 35256733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 35266733b39aSJayamohan Kallickal be32_to_cpu(task->cmdsn)); 35276733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb, 35286733b39aSJayamohan Kallickal io_task->pwrb_handle->wrb_index); 35296733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb, 35306733b39aSJayamohan Kallickal io_task->psgl_handle->sgl_index); 35316733b39aSJayamohan Kallickal 35326733b39aSJayamohan Kallickal switch (task->hdr->opcode & ISCSI_OPCODE_MASK) { 35336733b39aSJayamohan Kallickal case ISCSI_OP_LOGIN: 353435e66019SJayamohan Kallickal if (ring_mode) 353535e66019SJayamohan Kallickal io_task->psgl_handle->type = TGT_DM_CMD; 353635e66019SJayamohan Kallickal else 3537bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3538bfead3b2SJayamohan Kallickal TGT_DM_CMD); 35396733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 35406733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 1); 35416733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 35426733b39aSJayamohan Kallickal break; 35436733b39aSJayamohan Kallickal case ISCSI_OP_NOOP_OUT: 354435e66019SJayamohan Kallickal if (ring_mode) 354535e66019SJayamohan Kallickal io_task->psgl_handle->type = INI_RD_CMD; 354635e66019SJayamohan Kallickal else 3547bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3548bfead3b2SJayamohan Kallickal INI_RD_CMD); 35490ecb0b45SJayamohan Kallickal if (task->hdr->ttt == ISCSI_RESERVED_TAG) 35500ecb0b45SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 35510ecb0b45SJayamohan Kallickal else 35520ecb0b45SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 1); 35530ecb0b45SJayamohan Kallickal 35546733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 35556733b39aSJayamohan Kallickal break; 35566733b39aSJayamohan Kallickal case ISCSI_OP_TEXT: 355735e66019SJayamohan Kallickal if (ring_mode) 355835e66019SJayamohan Kallickal io_task->psgl_handle->type = INI_WR_CMD; 355935e66019SJayamohan Kallickal else 3560bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3561bfead3b2SJayamohan Kallickal INI_WR_CMD); 35620ecb0b45SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 35636733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1); 35646733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 35656733b39aSJayamohan Kallickal break; 35666733b39aSJayamohan Kallickal case ISCSI_OP_SCSI_TMFUNC: 3567bfead3b2SJayamohan Kallickal session = conn->session; 3568bfead3b2SJayamohan Kallickal i = ((struct iscsi_tm *)task->hdr)->rtt; 3569bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 35707da50879SJayamohan Kallickal pwrb_context = &phwi_ctrlr->wrb_context[cid - 35717da50879SJayamohan Kallickal phba->fw_config.iscsi_cid_start]; 3572bfead3b2SJayamohan Kallickal pwrb_handle = pwrb_context->pwrb_handle_basestd[be32_to_cpu(i) 3573bfead3b2SJayamohan Kallickal >> 16]; 3574bfead3b2SJayamohan Kallickal aborted_task = pwrb_handle->pio_handle; 35756733b39aSJayamohan Kallickal if (!aborted_task) 35766733b39aSJayamohan Kallickal return 0; 3577bfead3b2SJayamohan Kallickal 35786733b39aSJayamohan Kallickal aborted_io_task = aborted_task->dd_data; 35796733b39aSJayamohan Kallickal if (!aborted_io_task->scsi_cmnd) 35806733b39aSJayamohan Kallickal return 0; 35816733b39aSJayamohan Kallickal 35826733b39aSJayamohan Kallickal mgmt_invalidate_icds(phba, 35836733b39aSJayamohan Kallickal aborted_io_task->psgl_handle->sgl_index, 3584bfead3b2SJayamohan Kallickal cid); 358535e66019SJayamohan Kallickal if (ring_mode) 358635e66019SJayamohan Kallickal io_task->psgl_handle->type = INI_TMF_CMD; 358735e66019SJayamohan Kallickal else 3588bfead3b2SJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 3589bfead3b2SJayamohan Kallickal INI_TMF_CMD); 35906733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 35916733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 35926733b39aSJayamohan Kallickal break; 35936733b39aSJayamohan Kallickal case ISCSI_OP_LOGOUT: 35946733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); 359535e66019SJayamohan Kallickal if (ring_mode) 359635e66019SJayamohan Kallickal io_task->psgl_handle->type = HWH_TYPE_LOGOUT; 359735e66019SJayamohan Kallickal else 35986733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, 35996733b39aSJayamohan Kallickal HWH_TYPE_LOGOUT); 36006733b39aSJayamohan Kallickal hwi_write_buffer(pwrb, task); 36016733b39aSJayamohan Kallickal break; 36026733b39aSJayamohan Kallickal 36036733b39aSJayamohan Kallickal default: 36046733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, "opcode =%d Not supported \n", 36056733b39aSJayamohan Kallickal task->hdr->opcode & ISCSI_OPCODE_MASK); 36066733b39aSJayamohan Kallickal return -EINVAL; 36076733b39aSJayamohan Kallickal } 36086733b39aSJayamohan Kallickal 36096733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, 36106733b39aSJayamohan Kallickal be32_to_cpu(task->data_count)); 36116733b39aSJayamohan Kallickal AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb, 36126733b39aSJayamohan Kallickal io_task->pwrb_handle->nxt_wrb_index); 36136733b39aSJayamohan Kallickal be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb)); 36146733b39aSJayamohan Kallickal 3615bfead3b2SJayamohan Kallickal doorbell |= cid & DB_WRB_POST_CID_MASK; 361635e66019SJayamohan Kallickal if (!ring_mode) 36176733b39aSJayamohan Kallickal doorbell |= (io_task->pwrb_handle->wrb_index & 36186733b39aSJayamohan Kallickal DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; 36196733b39aSJayamohan Kallickal doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; 36206733b39aSJayamohan Kallickal iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); 36216733b39aSJayamohan Kallickal return 0; 36226733b39aSJayamohan Kallickal } 36236733b39aSJayamohan Kallickal 36246733b39aSJayamohan Kallickal static int beiscsi_task_xmit(struct iscsi_task *task) 36256733b39aSJayamohan Kallickal { 36266733b39aSJayamohan Kallickal struct iscsi_conn *conn = task->conn; 36276733b39aSJayamohan Kallickal struct beiscsi_io_task *io_task = task->dd_data; 36286733b39aSJayamohan Kallickal struct scsi_cmnd *sc = task->sc; 36296733b39aSJayamohan Kallickal struct beiscsi_conn *beiscsi_conn = conn->dd_data; 36306733b39aSJayamohan Kallickal struct scatterlist *sg; 36316733b39aSJayamohan Kallickal int num_sg; 36326733b39aSJayamohan Kallickal unsigned int writedir = 0, xferlen = 0; 36336733b39aSJayamohan Kallickal 36346733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_4, "\n cid=%d In beiscsi_task_xmit task=%p conn=%p \t" 36356733b39aSJayamohan Kallickal "beiscsi_conn=%p \n", beiscsi_conn->beiscsi_conn_cid, 36366733b39aSJayamohan Kallickal task, conn, beiscsi_conn); 36376733b39aSJayamohan Kallickal if (!sc) 36386733b39aSJayamohan Kallickal return beiscsi_mtask(task); 36396733b39aSJayamohan Kallickal 36406733b39aSJayamohan Kallickal io_task->scsi_cmnd = sc; 36416733b39aSJayamohan Kallickal num_sg = scsi_dma_map(sc); 36426733b39aSJayamohan Kallickal if (num_sg < 0) { 36436733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, " scsi_dma_map Failed\n") 36446733b39aSJayamohan Kallickal return num_sg; 36456733b39aSJayamohan Kallickal } 36466733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_4, "xferlen=0x%08x scmd=%p num_sg=%d sernum=%lu\n", 36476733b39aSJayamohan Kallickal (scsi_bufflen(sc)), sc, num_sg, sc->serial_number); 36486733b39aSJayamohan Kallickal xferlen = scsi_bufflen(sc); 36496733b39aSJayamohan Kallickal sg = scsi_sglist(sc); 36506733b39aSJayamohan Kallickal if (sc->sc_data_direction == DMA_TO_DEVICE) { 36516733b39aSJayamohan Kallickal writedir = 1; 36526733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_4, "task->imm_count=0x%08x \n", 36536733b39aSJayamohan Kallickal task->imm_count); 36546733b39aSJayamohan Kallickal } else 36556733b39aSJayamohan Kallickal writedir = 0; 36566733b39aSJayamohan Kallickal return beiscsi_iotask(task, sg, num_sg, xferlen, writedir); 36576733b39aSJayamohan Kallickal } 36586733b39aSJayamohan Kallickal 3659bfead3b2SJayamohan Kallickal 36606733b39aSJayamohan Kallickal static void beiscsi_remove(struct pci_dev *pcidev) 36616733b39aSJayamohan Kallickal { 36626733b39aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 3663bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 3664bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 3665bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 3666bfead3b2SJayamohan Kallickal unsigned int i, msix_vec; 36676733b39aSJayamohan Kallickal 36686733b39aSJayamohan Kallickal phba = (struct beiscsi_hba *)pci_get_drvdata(pcidev); 36696733b39aSJayamohan Kallickal if (!phba) { 36706733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_remove called with no phba \n"); 36716733b39aSJayamohan Kallickal return; 36726733b39aSJayamohan Kallickal } 36736733b39aSJayamohan Kallickal 3674bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 3675bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 36766733b39aSJayamohan Kallickal hwi_disable_intr(phba); 3677bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 3678bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) { 3679bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 3680bfead3b2SJayamohan Kallickal free_irq(msix_vec, &phwi_context->be_eq[i]); 3681bfead3b2SJayamohan Kallickal } 3682bfead3b2SJayamohan Kallickal } else 36836733b39aSJayamohan Kallickal if (phba->pcidev->irq) 36846733b39aSJayamohan Kallickal free_irq(phba->pcidev->irq, phba); 3685bfead3b2SJayamohan Kallickal pci_disable_msix(phba->pcidev); 36866733b39aSJayamohan Kallickal destroy_workqueue(phba->wq); 36876733b39aSJayamohan Kallickal if (blk_iopoll_enabled) 3688bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 3689bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 3690bfead3b2SJayamohan Kallickal blk_iopoll_disable(&pbe_eq->iopoll); 3691bfead3b2SJayamohan Kallickal } 36926733b39aSJayamohan Kallickal 36936733b39aSJayamohan Kallickal beiscsi_clean_port(phba); 36946733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 36956733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 36966733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 36976733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.size, 36986733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.va, 36996733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.dma); 37006733b39aSJayamohan Kallickal iscsi_host_remove(phba->shost); 37016733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 37026733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 37036733b39aSJayamohan Kallickal } 37046733b39aSJayamohan Kallickal 3705bfead3b2SJayamohan Kallickal static void beiscsi_msix_enable(struct beiscsi_hba *phba) 3706bfead3b2SJayamohan Kallickal { 3707bfead3b2SJayamohan Kallickal int i, status; 3708bfead3b2SJayamohan Kallickal 3709bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) 3710bfead3b2SJayamohan Kallickal phba->msix_entries[i].entry = i; 3711bfead3b2SJayamohan Kallickal 3712bfead3b2SJayamohan Kallickal status = pci_enable_msix(phba->pcidev, phba->msix_entries, 3713bfead3b2SJayamohan Kallickal (phba->num_cpus + 1)); 3714bfead3b2SJayamohan Kallickal if (!status) 3715bfead3b2SJayamohan Kallickal phba->msix_enabled = true; 3716bfead3b2SJayamohan Kallickal 3717bfead3b2SJayamohan Kallickal return; 3718bfead3b2SJayamohan Kallickal } 3719bfead3b2SJayamohan Kallickal 37206733b39aSJayamohan Kallickal static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev, 37216733b39aSJayamohan Kallickal const struct pci_device_id *id) 37226733b39aSJayamohan Kallickal { 37236733b39aSJayamohan Kallickal struct beiscsi_hba *phba = NULL; 3724bfead3b2SJayamohan Kallickal struct hwi_controller *phwi_ctrlr; 3725bfead3b2SJayamohan Kallickal struct hwi_context_memory *phwi_context; 3726bfead3b2SJayamohan Kallickal struct be_eq_obj *pbe_eq; 3727bfead3b2SJayamohan Kallickal int ret, msix_vec, num_cpus, i; 37286733b39aSJayamohan Kallickal 37296733b39aSJayamohan Kallickal ret = beiscsi_enable_pci(pcidev); 37306733b39aSJayamohan Kallickal if (ret < 0) { 37316733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 37326733b39aSJayamohan Kallickal "Failed to enable pci device \n"); 37336733b39aSJayamohan Kallickal return ret; 37346733b39aSJayamohan Kallickal } 37356733b39aSJayamohan Kallickal 37366733b39aSJayamohan Kallickal phba = beiscsi_hba_alloc(pcidev); 37376733b39aSJayamohan Kallickal if (!phba) { 37386733b39aSJayamohan Kallickal dev_err(&pcidev->dev, "beiscsi_dev_probe-" 37396733b39aSJayamohan Kallickal " Failed in beiscsi_hba_alloc \n"); 37406733b39aSJayamohan Kallickal goto disable_pci; 37416733b39aSJayamohan Kallickal } 3742bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, " phba = %p \n", phba); 37436733b39aSJayamohan Kallickal 3744bfead3b2SJayamohan Kallickal if (enable_msix) 3745bfead3b2SJayamohan Kallickal num_cpus = find_num_cpus(); 3746bfead3b2SJayamohan Kallickal else 3747bfead3b2SJayamohan Kallickal num_cpus = 1; 3748bfead3b2SJayamohan Kallickal phba->num_cpus = num_cpus; 3749bfead3b2SJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "num_cpus = %d \n", phba->num_cpus); 3750bfead3b2SJayamohan Kallickal 3751bfead3b2SJayamohan Kallickal if (enable_msix) 3752bfead3b2SJayamohan Kallickal beiscsi_msix_enable(phba); 37536733b39aSJayamohan Kallickal ret = be_ctrl_init(phba, pcidev); 37546733b39aSJayamohan Kallickal if (ret) { 37556733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 37566733b39aSJayamohan Kallickal "Failed in be_ctrl_init\n"); 37576733b39aSJayamohan Kallickal goto hba_free; 37586733b39aSJayamohan Kallickal } 37596733b39aSJayamohan Kallickal 37606733b39aSJayamohan Kallickal spin_lock_init(&phba->io_sgl_lock); 37616733b39aSJayamohan Kallickal spin_lock_init(&phba->mgmt_sgl_lock); 37626733b39aSJayamohan Kallickal spin_lock_init(&phba->isr_lock); 37637da50879SJayamohan Kallickal ret = mgmt_get_fw_config(&phba->ctrl, phba); 37647da50879SJayamohan Kallickal if (ret != 0) { 37657da50879SJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, 37667da50879SJayamohan Kallickal "Error getting fw config\n"); 37677da50879SJayamohan Kallickal goto free_port; 37687da50879SJayamohan Kallickal } 37697da50879SJayamohan Kallickal phba->shost->max_id = phba->fw_config.iscsi_cid_count; 37707da50879SJayamohan Kallickal phba->shost->can_queue = phba->params.ios_per_ctrl; 37716733b39aSJayamohan Kallickal beiscsi_get_params(phba); 37726733b39aSJayamohan Kallickal ret = beiscsi_init_port(phba); 37736733b39aSJayamohan Kallickal if (ret < 0) { 37746733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 37756733b39aSJayamohan Kallickal "Failed in beiscsi_init_port\n"); 37766733b39aSJayamohan Kallickal goto free_port; 37776733b39aSJayamohan Kallickal } 37786733b39aSJayamohan Kallickal 37796733b39aSJayamohan Kallickal snprintf(phba->wq_name, sizeof(phba->wq_name), "beiscsi_q_irq%u", 37806733b39aSJayamohan Kallickal phba->shost->host_no); 3781bfead3b2SJayamohan Kallickal phba->wq = create_workqueue(phba->wq_name); 37826733b39aSJayamohan Kallickal if (!phba->wq) { 37836733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 37846733b39aSJayamohan Kallickal "Failed to allocate work queue\n"); 37856733b39aSJayamohan Kallickal goto free_twq; 37866733b39aSJayamohan Kallickal } 37876733b39aSJayamohan Kallickal 37886733b39aSJayamohan Kallickal INIT_WORK(&phba->work_cqs, beiscsi_process_all_cqs); 37896733b39aSJayamohan Kallickal 3790bfead3b2SJayamohan Kallickal phwi_ctrlr = phba->phwi_ctrlr; 3791bfead3b2SJayamohan Kallickal phwi_context = phwi_ctrlr->phwi_ctxt; 37926733b39aSJayamohan Kallickal if (blk_iopoll_enabled) { 3793bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 3794bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 3795bfead3b2SJayamohan Kallickal blk_iopoll_init(&pbe_eq->iopoll, be_iopoll_budget, 3796bfead3b2SJayamohan Kallickal be_iopoll); 3797bfead3b2SJayamohan Kallickal blk_iopoll_enable(&pbe_eq->iopoll); 37986733b39aSJayamohan Kallickal } 3799bfead3b2SJayamohan Kallickal } 38006733b39aSJayamohan Kallickal ret = beiscsi_init_irqs(phba); 38016733b39aSJayamohan Kallickal if (ret < 0) { 38026733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 38036733b39aSJayamohan Kallickal "Failed to beiscsi_init_irqs\n"); 38046733b39aSJayamohan Kallickal goto free_blkenbld; 38056733b39aSJayamohan Kallickal } 38066733b39aSJayamohan Kallickal ret = hwi_enable_intr(phba); 38076733b39aSJayamohan Kallickal if (ret < 0) { 38086733b39aSJayamohan Kallickal shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-" 38096733b39aSJayamohan Kallickal "Failed to hwi_enable_intr\n"); 38106733b39aSJayamohan Kallickal goto free_ctrlr; 38116733b39aSJayamohan Kallickal } 38126733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "\n\n\n SUCCESS - DRIVER LOADED \n\n\n"); 38136733b39aSJayamohan Kallickal return 0; 38146733b39aSJayamohan Kallickal 38156733b39aSJayamohan Kallickal free_ctrlr: 3816bfead3b2SJayamohan Kallickal if (phba->msix_enabled) { 3817bfead3b2SJayamohan Kallickal for (i = 0; i <= phba->num_cpus; i++) { 3818bfead3b2SJayamohan Kallickal msix_vec = phba->msix_entries[i].vector; 3819bfead3b2SJayamohan Kallickal free_irq(msix_vec, &phwi_context->be_eq[i]); 3820bfead3b2SJayamohan Kallickal } 3821bfead3b2SJayamohan Kallickal } else 38226733b39aSJayamohan Kallickal if (phba->pcidev->irq) 38236733b39aSJayamohan Kallickal free_irq(phba->pcidev->irq, phba); 3824bfead3b2SJayamohan Kallickal pci_disable_msix(phba->pcidev); 38256733b39aSJayamohan Kallickal free_blkenbld: 38266733b39aSJayamohan Kallickal destroy_workqueue(phba->wq); 38276733b39aSJayamohan Kallickal if (blk_iopoll_enabled) 3828bfead3b2SJayamohan Kallickal for (i = 0; i < phba->num_cpus; i++) { 3829bfead3b2SJayamohan Kallickal pbe_eq = &phwi_context->be_eq[i]; 3830bfead3b2SJayamohan Kallickal blk_iopoll_disable(&pbe_eq->iopoll); 3831bfead3b2SJayamohan Kallickal } 38326733b39aSJayamohan Kallickal free_twq: 38336733b39aSJayamohan Kallickal beiscsi_clean_port(phba); 38346733b39aSJayamohan Kallickal beiscsi_free_mem(phba); 38356733b39aSJayamohan Kallickal free_port: 38366733b39aSJayamohan Kallickal pci_free_consistent(phba->pcidev, 38376733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.size, 38386733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.va, 38396733b39aSJayamohan Kallickal phba->ctrl.mbox_mem_alloced.dma); 38406733b39aSJayamohan Kallickal beiscsi_unmap_pci_function(phba); 38416733b39aSJayamohan Kallickal hba_free: 38426733b39aSJayamohan Kallickal iscsi_host_remove(phba->shost); 38436733b39aSJayamohan Kallickal pci_dev_put(phba->pcidev); 38446733b39aSJayamohan Kallickal iscsi_host_free(phba->shost); 38456733b39aSJayamohan Kallickal disable_pci: 38466733b39aSJayamohan Kallickal pci_disable_device(pcidev); 38476733b39aSJayamohan Kallickal return ret; 38486733b39aSJayamohan Kallickal } 38496733b39aSJayamohan Kallickal 38506733b39aSJayamohan Kallickal struct iscsi_transport beiscsi_iscsi_transport = { 38516733b39aSJayamohan Kallickal .owner = THIS_MODULE, 38526733b39aSJayamohan Kallickal .name = DRV_NAME, 38536733b39aSJayamohan Kallickal .caps = CAP_RECOVERY_L0 | CAP_HDRDGST | 38546733b39aSJayamohan Kallickal CAP_MULTI_R2T | CAP_DATADGST | CAP_DATA_PATH_OFFLOAD, 38556733b39aSJayamohan Kallickal .param_mask = ISCSI_MAX_RECV_DLENGTH | 38566733b39aSJayamohan Kallickal ISCSI_MAX_XMIT_DLENGTH | 38576733b39aSJayamohan Kallickal ISCSI_HDRDGST_EN | 38586733b39aSJayamohan Kallickal ISCSI_DATADGST_EN | 38596733b39aSJayamohan Kallickal ISCSI_INITIAL_R2T_EN | 38606733b39aSJayamohan Kallickal ISCSI_MAX_R2T | 38616733b39aSJayamohan Kallickal ISCSI_IMM_DATA_EN | 38626733b39aSJayamohan Kallickal ISCSI_FIRST_BURST | 38636733b39aSJayamohan Kallickal ISCSI_MAX_BURST | 38646733b39aSJayamohan Kallickal ISCSI_PDU_INORDER_EN | 38656733b39aSJayamohan Kallickal ISCSI_DATASEQ_INORDER_EN | 38666733b39aSJayamohan Kallickal ISCSI_ERL | 38676733b39aSJayamohan Kallickal ISCSI_CONN_PORT | 38686733b39aSJayamohan Kallickal ISCSI_CONN_ADDRESS | 38696733b39aSJayamohan Kallickal ISCSI_EXP_STATSN | 38706733b39aSJayamohan Kallickal ISCSI_PERSISTENT_PORT | 38716733b39aSJayamohan Kallickal ISCSI_PERSISTENT_ADDRESS | 38726733b39aSJayamohan Kallickal ISCSI_TARGET_NAME | ISCSI_TPGT | 38736733b39aSJayamohan Kallickal ISCSI_USERNAME | ISCSI_PASSWORD | 38746733b39aSJayamohan Kallickal ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN | 38756733b39aSJayamohan Kallickal ISCSI_FAST_ABORT | ISCSI_ABORT_TMO | 38767da50879SJayamohan Kallickal ISCSI_LU_RESET_TMO | 38776733b39aSJayamohan Kallickal ISCSI_PING_TMO | ISCSI_RECV_TMO | 38786733b39aSJayamohan Kallickal ISCSI_IFACE_NAME | ISCSI_INITIATOR_NAME, 38796733b39aSJayamohan Kallickal .host_param_mask = ISCSI_HOST_HWADDRESS | ISCSI_HOST_IPADDRESS | 38806733b39aSJayamohan Kallickal ISCSI_HOST_INITIATOR_NAME, 38816733b39aSJayamohan Kallickal .create_session = beiscsi_session_create, 38826733b39aSJayamohan Kallickal .destroy_session = beiscsi_session_destroy, 38836733b39aSJayamohan Kallickal .create_conn = beiscsi_conn_create, 38846733b39aSJayamohan Kallickal .bind_conn = beiscsi_conn_bind, 38856733b39aSJayamohan Kallickal .destroy_conn = iscsi_conn_teardown, 38866733b39aSJayamohan Kallickal .set_param = beiscsi_set_param, 38876733b39aSJayamohan Kallickal .get_conn_param = beiscsi_conn_get_param, 38886733b39aSJayamohan Kallickal .get_session_param = iscsi_session_get_param, 38896733b39aSJayamohan Kallickal .get_host_param = beiscsi_get_host_param, 38906733b39aSJayamohan Kallickal .start_conn = beiscsi_conn_start, 38916733b39aSJayamohan Kallickal .stop_conn = beiscsi_conn_stop, 38926733b39aSJayamohan Kallickal .send_pdu = iscsi_conn_send_pdu, 38936733b39aSJayamohan Kallickal .xmit_task = beiscsi_task_xmit, 38946733b39aSJayamohan Kallickal .cleanup_task = beiscsi_cleanup_task, 38956733b39aSJayamohan Kallickal .alloc_pdu = beiscsi_alloc_pdu, 38966733b39aSJayamohan Kallickal .parse_pdu_itt = beiscsi_parse_pdu, 38976733b39aSJayamohan Kallickal .get_stats = beiscsi_conn_get_stats, 38986733b39aSJayamohan Kallickal .ep_connect = beiscsi_ep_connect, 38996733b39aSJayamohan Kallickal .ep_poll = beiscsi_ep_poll, 39006733b39aSJayamohan Kallickal .ep_disconnect = beiscsi_ep_disconnect, 39016733b39aSJayamohan Kallickal .session_recovery_timedout = iscsi_session_recovery_timedout, 39026733b39aSJayamohan Kallickal }; 39036733b39aSJayamohan Kallickal 39046733b39aSJayamohan Kallickal static struct pci_driver beiscsi_pci_driver = { 39056733b39aSJayamohan Kallickal .name = DRV_NAME, 39066733b39aSJayamohan Kallickal .probe = beiscsi_dev_probe, 39076733b39aSJayamohan Kallickal .remove = beiscsi_remove, 39086733b39aSJayamohan Kallickal .id_table = beiscsi_pci_id_table 39096733b39aSJayamohan Kallickal }; 39106733b39aSJayamohan Kallickal 3911bfead3b2SJayamohan Kallickal 39126733b39aSJayamohan Kallickal static int __init beiscsi_module_init(void) 39136733b39aSJayamohan Kallickal { 39146733b39aSJayamohan Kallickal int ret; 39156733b39aSJayamohan Kallickal 39166733b39aSJayamohan Kallickal beiscsi_scsi_transport = 39176733b39aSJayamohan Kallickal iscsi_register_transport(&beiscsi_iscsi_transport); 39186733b39aSJayamohan Kallickal if (!beiscsi_scsi_transport) { 39196733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 39206733b39aSJayamohan Kallickal "beiscsi_module_init - Unable to register beiscsi" 39216733b39aSJayamohan Kallickal "transport.\n"); 39226733b39aSJayamohan Kallickal ret = -ENOMEM; 39236733b39aSJayamohan Kallickal } 39246733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_8, "In beiscsi_module_init, tt=%p \n", 39256733b39aSJayamohan Kallickal &beiscsi_iscsi_transport); 39266733b39aSJayamohan Kallickal 39276733b39aSJayamohan Kallickal ret = pci_register_driver(&beiscsi_pci_driver); 39286733b39aSJayamohan Kallickal if (ret) { 39296733b39aSJayamohan Kallickal SE_DEBUG(DBG_LVL_1, 39306733b39aSJayamohan Kallickal "beiscsi_module_init - Unable to register" 39316733b39aSJayamohan Kallickal "beiscsi pci driver.\n"); 39326733b39aSJayamohan Kallickal goto unregister_iscsi_transport; 39336733b39aSJayamohan Kallickal } 393435e66019SJayamohan Kallickal ring_mode = 0; 39356733b39aSJayamohan Kallickal return 0; 39366733b39aSJayamohan Kallickal 39376733b39aSJayamohan Kallickal unregister_iscsi_transport: 39386733b39aSJayamohan Kallickal iscsi_unregister_transport(&beiscsi_iscsi_transport); 39396733b39aSJayamohan Kallickal return ret; 39406733b39aSJayamohan Kallickal } 39416733b39aSJayamohan Kallickal 39426733b39aSJayamohan Kallickal static void __exit beiscsi_module_exit(void) 39436733b39aSJayamohan Kallickal { 39446733b39aSJayamohan Kallickal pci_unregister_driver(&beiscsi_pci_driver); 39456733b39aSJayamohan Kallickal iscsi_unregister_transport(&beiscsi_iscsi_transport); 39466733b39aSJayamohan Kallickal } 39476733b39aSJayamohan Kallickal 39486733b39aSJayamohan Kallickal module_init(beiscsi_module_init); 39496733b39aSJayamohan Kallickal module_exit(beiscsi_module_exit); 3950