| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Quinn Tran | 4687 | 20.54% | 56 | 22.86% |
| Giridhar Malavali | 4274 | 18.73% | 11 | 4.49% |
| Arun Easi | 2919 | 12.79% | 11 | 4.49% |
| Andrew Vasquez | 2316 | 10.15% | 45 | 18.37% |
| James Bottomley | 1934 | 8.48% | 4 | 1.63% |
| Michael Hernandez | 1062 | 4.65% | 1 | 0.41% |
| Saurav Kashyap | 1045 | 4.58% | 12 | 4.90% |
| Himanshu Madhani | 851 | 3.73% | 6 | 2.45% |
| Duane Grigsby | 771 | 3.38% | 3 | 1.22% |
| Bart Van Assche | 706 | 3.09% | 24 | 9.80% |
| Anirban Chakraborty | 562 | 2.46% | 7 | 2.86% |
| Madhuranath Iyengar | 284 | 1.24% | 2 | 0.82% |
| Harish Zunjarrao | 202 | 0.89% | 2 | 0.82% |
| Joe Carnuccio | 161 | 0.71% | 9 | 3.67% |
| FUJITA Tomonori | 139 | 0.61% | 1 | 0.41% |
| Armen Baloyan | 139 | 0.61% | 1 | 0.41% |
| Seokmann Ju | 127 | 0.56% | 2 | 0.82% |
| Roman Bolshakov | 90 | 0.39% | 2 | 0.82% |
| Nicholas Bellinger | 82 | 0.36% | 1 | 0.41% |
| Manish Rangankar | 76 | 0.33% | 1 | 0.41% |
| Johannes Thumshirn | 62 | 0.27% | 3 | 1.22% |
| Daniel Wagner | 41 | 0.18% | 2 | 0.82% |
| Chad Dupuis | 39 | 0.17% | 6 | 2.45% |
| Sarang Radke | 32 | 0.14% | 2 | 0.82% |
| Martin K. Petersen | 30 | 0.13% | 1 | 0.41% |
| Darren Trapp | 27 | 0.12% | 2 | 0.82% |
| Dan Carpenter | 26 | 0.11% | 3 | 1.22% |
| Bikash Hazarika | 24 | 0.11% | 2 | 0.82% |
| Shyam Sundar | 24 | 0.11% | 3 | 1.22% |
| Alexei Potashnik | 16 | 0.07% | 1 | 0.41% |
| Christoph Hellwig | 9 | 0.04% | 1 | 0.41% |
| Hannes Reinecke | 9 | 0.04% | 2 | 0.82% |
| James Smart | 8 | 0.04% | 1 | 0.41% |
| Eric Moore | 6 | 0.03% | 1 | 0.41% |
| Harihara Kadayam | 5 | 0.02% | 1 | 0.41% |
| Chetan Loke | 5 | 0.02% | 1 | 0.41% |
| Kees Cook | 5 | 0.02% | 1 | 0.41% |
| gurinder.shergill@hp.com | 4 | 0.02% | 1 | 0.41% |
| Arnd Bergmann | 4 | 0.02% | 1 | 0.41% |
| Kieran Bingham | 3 | 0.01% | 1 | 0.41% |
| Thomas Gleixner | 2 | 0.01% | 1 | 0.41% |
| Souptick Joarder | 2 | 0.01% | 1 | 0.41% |
| Gustavo A. R. Silva | 2 | 0.01% | 1 | 0.41% |
| Atul Deshmukh | 2 | 0.01% | 1 | 0.41% |
| Björn Helgaas | 2 | 0.01% | 1 | 0.41% |
| Lee Jones | 1 | 0.00% | 1 | 0.41% |
| Nilesh Javali | 1 | 0.00% | 1 | 0.41% |
| Lucas De Marchi | 1 | 0.00% | 1 | 0.41% |
| Total | 22819 | 245 |
// SPDX-License-Identifier: GPL-2.0-only /* * QLogic Fibre Channel HBA Driver * Copyright (c) 2003-2014 QLogic Corporation */ #include "qla_def.h" #include "qla_target.h" #include <linux/blkdev.h> #include <linux/delay.h> #include <scsi/scsi_tcq.h> static int qla_start_scsi_type6(srb_t *sp); /** * qla2x00_get_cmd_direction() - Determine control_flag data direction. * @sp: SCSI command * * Returns the proper CF_* direction based on CDB. */ static inline uint16_t qla2x00_get_cmd_direction(srb_t *sp) { uint16_t cflags; struct scsi_cmnd *cmd = GET_CMD_SP(sp); struct scsi_qla_host *vha = sp->vha; cflags = 0; /* Set transfer direction */ if (cmd->sc_data_direction == DMA_TO_DEVICE) { cflags = CF_WRITE; vha->qla_stats.output_bytes += scsi_bufflen(cmd); vha->qla_stats.output_requests++; } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { cflags = CF_READ; vha->qla_stats.input_bytes += scsi_bufflen(cmd); vha->qla_stats.input_requests++; } return (cflags); } /** * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and * Continuation Type 0 IOCBs to allocate. * * @dsds: number of data segment descriptors needed * * Returns the number of IOCB entries needed to store @dsds. */ uint16_t qla2x00_calc_iocbs_32(uint16_t dsds) { uint16_t iocbs; iocbs = 1; if (dsds > 3) { iocbs += (dsds - 3) / 7; if ((dsds - 3) % 7) iocbs++; } return (iocbs); } /** * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and * Continuation Type 1 IOCBs to allocate. * * @dsds: number of data segment descriptors needed * * Returns the number of IOCB entries needed to store @dsds. */ uint16_t qla2x00_calc_iocbs_64(uint16_t dsds) { uint16_t iocbs; iocbs = 1; if (dsds > 2) { iocbs += (dsds - 2) / 5; if ((dsds - 2) % 5) iocbs++; } return (iocbs); } /** * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB. * @vha: HA context * * Returns a pointer to the Continuation Type 0 IOCB packet. */ static inline cont_entry_t * qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha) { cont_entry_t *cont_pkt; struct req_que *req = vha->req; /* Adjust ring index. */ req->ring_index++; if (req->ring_index == req->length) { req->ring_index = 0; req->ring_ptr = req->ring; } else { req->ring_ptr++; } cont_pkt = (cont_entry_t *)req->ring_ptr; /* Load packet defaults. */ put_unaligned_le32(CONTINUE_TYPE, &cont_pkt->entry_type); return (cont_pkt); } /** * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB. * @vha: HA context * @req: request queue * * Returns a pointer to the continuation type 1 IOCB packet. */ cont_a64_entry_t * qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req) { cont_a64_entry_t *cont_pkt; /* Adjust ring index. */ req->ring_index++; if (req->ring_index == req->length) { req->ring_index = 0; req->ring_ptr = req->ring; } else { req->ring_ptr++; } cont_pkt = (cont_a64_entry_t *)req->ring_ptr; /* Load packet defaults. */ put_unaligned_le32(IS_QLAFX00(vha->hw) ? CONTINUE_A64_TYPE_FX00 : CONTINUE_A64_TYPE, &cont_pkt->entry_type); return (cont_pkt); } inline int qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts) { struct scsi_cmnd *cmd = GET_CMD_SP(sp); /* We always use DIFF Bundling for best performance */ *fw_prot_opts = 0; /* Translate SCSI opcode to a protection opcode */ switch (scsi_get_prot_op(cmd)) { case SCSI_PROT_READ_STRIP: *fw_prot_opts |= PO_MODE_DIF_REMOVE; break; case SCSI_PROT_WRITE_INSERT: *fw_prot_opts |= PO_MODE_DIF_INSERT; break; case SCSI_PROT_READ_INSERT: *fw_prot_opts |= PO_MODE_DIF_INSERT; break; case SCSI_PROT_WRITE_STRIP: *fw_prot_opts |= PO_MODE_DIF_REMOVE; break; case SCSI_PROT_READ_PASS: case SCSI_PROT_WRITE_PASS: if (cmd->prot_flags & SCSI_PROT_IP_CHECKSUM) *fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM; else *fw_prot_opts |= PO_MODE_DIF_PASS; break; default: /* Normal Request */ *fw_prot_opts |= PO_MODE_DIF_PASS; break; } if (!(cmd->prot_flags & SCSI_PROT_GUARD_CHECK)) *fw_prot_opts |= PO_DISABLE_GUARD_CHECK; return scsi_prot_sg_count(cmd); } /* * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit * capable IOCB types. * * @sp: SRB command to process * @cmd_pkt: Command type 2 IOCB * @tot_dsds: Total number of segments to transfer */ void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, uint16_t tot_dsds) { uint16_t avail_dsds; struct dsd32 *cur_dsd; scsi_qla_host_t *vha; struct scsi_cmnd *cmd; struct scatterlist *sg; int i; cmd = GET_CMD_SP(sp); /* Update entry type to indicate Command Type 2 IOCB */ put_unaligned_le32(COMMAND_TYPE, &cmd_pkt->entry_type); /* No data transfer */ if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { cmd_pkt->byte_count = cpu_to_le32(0); return; } vha = sp->vha; cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); /* Three DSDs are available in the Command Type 2 IOCB */ avail_dsds = ARRAY_SIZE(cmd_pkt->dsd32); cur_dsd = cmd_pkt->dsd32; /* Load data segments */ scsi_for_each_sg(cmd, sg, tot_dsds, i) { cont_entry_t *cont_pkt; /* Allocate additional continuation packets? */ if (avail_dsds == 0) { /* * Seven DSDs are available in the Continuation * Type 0 IOCB. */ cont_pkt = qla2x00_prep_cont_type0_iocb(vha); cur_dsd = cont_pkt->dsd; avail_dsds = ARRAY_SIZE(cont_pkt->dsd); } append_dsd32(&cur_dsd, sg); avail_dsds--; } } /** * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit * capable IOCB types. * * @sp: SRB command to process * @cmd_pkt: Command type 3 IOCB * @tot_dsds: Total number of segments to transfer */ void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, uint16_t tot_dsds) { uint16_t avail_dsds; struct dsd64 *cur_dsd; scsi_qla_host_t *vha; struct scsi_cmnd *cmd; struct scatterlist *sg; int i; cmd = GET_CMD_SP(sp); /* Update entry type to indicate Command Type 3 IOCB */ put_unaligned_le32(COMMAND_A64_TYPE, &cmd_pkt->entry_type); /* No data transfer */ if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { cmd_pkt->byte_count = cpu_to_le32(0); return; } vha = sp->vha; cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); /* Two DSDs are available in the Command Type 3 IOCB */ avail_dsds = ARRAY_SIZE(cmd_pkt->dsd64); cur_dsd = cmd_pkt->dsd64; /* Load data segments */ scsi_for_each_sg(cmd, sg, tot_dsds, i) { cont_a64_entry_t *cont_pkt; /* Allocate additional continuation packets? */ if (avail_dsds == 0) { /* * Five DSDs are available in the Continuation * Type 1 IOCB. */ cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); cur_dsd = cont_pkt->dsd; avail_dsds = ARRAY_SIZE(cont_pkt->dsd); } append_dsd64(&cur_dsd, sg); avail_dsds--; } } /* * Find the first handle that is not in use, starting from * req->current_outstanding_cmd + 1. The caller must hold the lock that is * associated with @req. */ uint32_t qla2xxx_get_next_handle(struct req_que *req) { uint32_t index, handle = req->current_outstanding_cmd; for (index = 1; index < req->num_outstanding_cmds; index++) { handle++; if (handle == req->num_outstanding_cmds) handle = 1; if (!req->outstanding_cmds[handle]) return handle; } return 0; } /** * qla2x00_start_scsi() - Send a SCSI command to the ISP * @sp: command to send to the ISP * * Returns non-zero if a failure occurred, else zero. */ int qla2x00_start_scsi(srb_t *sp) { int nseg; unsigned long flags; scsi_qla_host_t *vha; struct scsi_cmnd *cmd; uint32_t *clr_ptr; uint32_t handle; cmd_entry_t *cmd_pkt; uint16_t cnt; uint16_t req_cnt; uint16_t tot_dsds; struct device_reg_2xxx __iomem *reg; struct qla_hw_data *ha; struct req_que *req; struct rsp_que *rsp; /* Setup device pointers. */ vha = sp->vha; ha = vha->hw; reg = &ha->iobase->isp; cmd = GET_CMD_SP(sp); req = ha->req_q_map[0]; rsp = ha->rsp_q_map[0]; /* So we know we haven't pci_map'ed anything yet */ tot_dsds = 0; /* Send marker if required */ if (vha->marker_needed != 0) { if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { return (QLA_FUNCTION_FAILED); } vha->marker_needed = 0; } /* Acquire ring specific lock */ spin_lock_irqsave(&ha->hardware_lock, flags); handle = qla2xxx_get_next_handle(req); if (handle == 0) goto queuing_error; /* Map the sg table so we have an accurate count of sg entries needed */ if (scsi_sg_count(cmd)) { nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), scsi_sg_count(cmd), cmd->sc_data_direction); if (unlikely(!nseg)) goto queuing_error; } else nseg = 0; tot_dsds = nseg; /* Calculate the number of request entries needed. */ req_cnt = ha->isp_ops->calc_req_entries(tot_dsds); if (req->cnt < (req_cnt + 2)) { cnt = rd_reg_word_relaxed(ISP_REQ_Q_OUT(ha, reg)); if (req->ring_index < cnt) req->cnt = cnt - req->ring_index; else req->cnt = req->length - (req->ring_index - cnt); /* If still no head room then bail out */ if (req->cnt < (req_cnt + 2)) goto queuing_error; } /* Build command packet */ req->current_outstanding_cmd = handle; req->outstanding_cmds[handle] = sp; sp->handle = handle; cmd->host_scribble = (unsigned char *)(unsigned long)handle; req->cnt -= req_cnt; cmd_pkt = (cmd_entry_t *)req->ring_ptr; cmd_pkt->handle = handle; /* Zero out remaining portion of packet. */ clr_ptr = (uint32_t *)cmd_pkt + 2; memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); /* Set target ID and LUN number*/ SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); cmd_pkt->lun = cpu_to_le16(cmd->device->lun); cmd_pkt->control_flags = cpu_to_le16(CF_SIMPLE_TAG); /* Load SCSI command packet. */ memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len); cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); /* Build IOCB segments */ ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds); /* Set total data segment count. */ cmd_pkt->entry_count = (uint8_t)req_cnt; wmb(); /* Adjust ring index. */ req->ring_index++; if (req->ring_index == req->length) { req->ring_index = 0; req->ring_ptr = req->ring; } else req->ring_ptr++; sp->flags |= SRB_DMA_VALID; /* Set chip new ring index. */ wrt_reg_word(ISP_REQ_Q_IN(ha, reg), req->ring_index); rd_reg_word_relaxed(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */ /* Manage unprocessed RIO/ZIO commands in response queue. */ if (vha->flags.process_response_queue && rsp->ring_ptr->signature != RESPONSE_PROCESSED) qla2x00_process_response_queue(rsp); spin_unlock_irqrestore(&ha->hardware_lock, flags); return (QLA_SUCCESS); queuing_error: if (tot_dsds) scsi_dma_unmap(cmd); spin_unlock_irqrestore(&ha->hardware_lock, flags); return (QLA_FUNCTION_FAILED); } /** * qla2x00_start_iocbs() - Execute the IOCB command * @vha: HA context * @req: request queue */ void qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req) { struct qla_hw_data *ha = vha->hw; device_reg_t *reg = ISP_QUE_REG(ha, req->id); if (IS_P3P_TYPE(ha)) { qla82xx_start_iocbs(vha); } else { /* Adjust ring index. */ req->ring_index++; if (req->ring_index == req->length) { req->ring_index = 0; req->ring_ptr = req->ring; } else req->ring_ptr++; /* Set chip new ring index. */ if (ha->mqenable || IS_QLA27XX(ha) || IS_QLA28XX(ha)) { wrt_reg_dword(req->req_q_in, req->ring_index); } else if (IS_QLA83XX(ha)) { wrt_reg_dword(req->req_q_in, req->ring_index); rd_reg_dword_relaxed(&ha->iobase->isp24.hccr); } else if (IS_QLAFX00(ha)) { wrt_reg_dword(®->ispfx00.req_q_in, req->ring_index); rd_reg_dword_relaxed(®->ispfx00.req_q_in); QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code); } else if (IS_FWI2_CAPABLE(ha)) { wrt_reg_dword(®->isp24.req_q_in, req->ring_index); rd_reg_dword_relaxed(®->isp24.req_q_in); } else { wrt_reg_word(ISP_REQ_Q_IN(ha, ®->isp), req->ring_index); rd_reg_word_relaxed(ISP_REQ_Q_IN(ha, ®->isp)); } } } /** * __qla2x00_marker() - Send a marker IOCB to the firmware. * @vha: HA context * @qpair: queue pair pointer * @loop_id: loop ID * @lun: LUN * @type: marker modifier * * Can be called from both normal and interrupt context. * * Returns non-zero if a failure occurred, else zero. */ static int __qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair, uint16_t loop_id, uint64_t lun, uint8_t type) { mrk_entry_t *mrk; struct mrk_entry_24xx *mrk24 = NULL; struct req_que *req = qpair->req; struct qla_hw_data *ha = vha->hw; scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); mrk = (mrk_entry_t *)__qla2x00_alloc_iocbs(qpair, NULL); if (mrk == NULL) { ql_log(ql_log_warn, base_vha, 0x3026, "Failed to allocate Marker IOCB.\n"); return (QLA_FUNCTION_FAILED); } mrk24 = (struct mrk_entry_24xx *)mrk; mrk->entry_type = MARKER_TYPE; mrk->modifier = type; if (type != MK_SYNC_ALL) { if (IS_FWI2_CAPABLE(ha)) { mrk24->nport_handle = cpu_to_le16(loop_id); int_to_scsilun(lun, (struct scsi_lun *)&mrk24->lun); host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); mrk24->vp_index = vha->vp_idx; } else { SET_TARGET_ID(ha, mrk->target, loop_id); mrk->lun = cpu_to_le16((uint16_t)lun); } } if (IS_FWI2_CAPABLE(ha)) mrk24->handle = QLA_SKIP_HANDLE; wmb(); qla2x00_start_iocbs(vha, req); return (QLA_SUCCESS); } int qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair, uint16_t loop_id, uint64_t lun, uint8_t type) { int ret; unsigned long flags = 0; spin_lock_irqsave(qpair->qp_lock_ptr, flags); ret = __qla2x00_marker(vha, qpair, loop_id, lun, type); spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); return (ret); } /* * qla2x00_issue_marker * * Issue marker * Caller CAN have hardware lock held as specified by ha_locked parameter. * Might release it, then reaquire. */ int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked) { if (ha_locked) { if (__qla2x00_marker(vha, vha->hw->base_qpair, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) return QLA_FUNCTION_FAILED; } else { if (qla2x00_marker(vha, vha->hw->base_qpair, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) return QLA_FUNCTION_FAILED; } vha->marker_needed = 0; return QLA_SUCCESS; } static inline int qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, uint16_t tot_dsds) { struct dsd64 *cur_dsd = NULL, *next_dsd; struct scsi_cmnd *cmd; struct scatterlist *cur_seg; uint8_t avail_dsds; uint8_t first_iocb = 1; uint32_t dsd_list_len; struct dsd_dma *dsd_ptr; struct ct6_dsd *ctx; struct qla_qpair *qpair = sp->qpair; cmd = GET_CMD_SP(sp); /* Update entry type to indicate Command Type 3 IOCB */ put_unaligned_le32(COMMAND_TYPE_6, &cmd_pkt->entry_type); /* No data transfer */ if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE || tot_dsds == 0) { cmd_pkt->byte_count = cpu_to_le32(0); return 0; } /* Set transfer direction */ if (cmd->sc_data_direction == DMA_TO_DEVICE) { cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA); qpair->counters.output_bytes += scsi_bufflen(cmd); qpair->counters.output_requests++; } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA); qpair->counters.input_bytes += scsi_bufflen(cmd); qpair->counters.input_requests++; } cur_seg = scsi_sglist(cmd); ctx = &sp->u.scmd.ct6_ctx; while (tot_dsds) { avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ? QLA_DSDS_PER_IOCB : tot_dsds; tot_dsds -= avail_dsds; dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE; dsd_ptr = list_first_entry(&qpair->dsd_list, struct dsd_dma, list); next_dsd = dsd_ptr->dsd_addr; list_del(&dsd_ptr->list); qpair->dsd_avail--; list_add_tail(&dsd_ptr->list, &ctx->dsd_list); ctx->dsd_use_cnt++; qpair->dsd_inuse++; if (first_iocb) { first_iocb = 0; put_unaligned_le64(dsd_ptr->dsd_list_dma, &cmd_pkt->fcp_dsd.address); cmd_pkt->fcp_dsd.length = cpu_to_le32(dsd_list_len); } else { put_unaligned_le64(dsd_ptr->dsd_list_dma, &cur_dsd->address); cur_dsd->length = cpu_to_le32(dsd_list_len); cur_dsd++; } cur_dsd = next_dsd; while (avail_dsds) { append_dsd64(&cur_dsd, cur_seg); cur_seg = sg_next(cur_seg); avail_dsds--; } } /* Null termination */ cur_dsd->address = 0; cur_dsd->length = 0; cur_dsd++; cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); return 0; } /* * qla24xx_calc_dsd_lists() - Determine number of DSD list required * for Command Type 6. * * @dsds: number of data segment descriptors needed * * Returns the number of dsd list needed to store @dsds. */ static inline uint16_t qla24xx_calc_dsd_lists(uint16_t dsds) { uint16_t dsd_lists = 0; dsd_lists = (dsds/QLA_DSDS_PER_IOCB); if (dsds % QLA_DSDS_PER_IOCB) dsd_lists++; return dsd_lists; } /** * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7 * IOCB types. * * @sp: SRB command to process * @cmd_pkt: Command type 3 IOCB * @tot_dsds: Total number of segments to transfer * @req: pointer to request queue */ inline void qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, uint16_t tot_dsds, struct req_que *req) { uint16_t avail_dsds; struct dsd64 *cur_dsd; scsi_qla_host_t *vha; struct scsi_cmnd *cmd; struct scatterlist *sg; int i; struct qla_qpair *qpair = sp->qpair; cmd = GET_CMD_SP(sp); /* Update entry type to indicate Command Type 3 IOCB */ put_unaligned_le32(COMMAND_TYPE_7, &cmd_pkt->entry_type); /* No data transfer */ if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { cmd_pkt->byte_count = cpu_to_le32(0); return; } vha = sp->vha; /* Set transfer direction */ if (cmd->sc_data_direction == DMA_TO_DEVICE) { cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_WRITE_DATA); qpair->counters.output_bytes += scsi_bufflen(cmd); qpair->counters.output_requests++; } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA); qpair->counters.input_bytes += scsi_bufflen(cmd); qpair->counters.input_requests++; } /* One DSD is available in the Command Type 3 IOCB */ avail_dsds = 1; cur_dsd = &cmd_pkt->dsd; /* Load data segments */ scsi_for_each_sg(cmd, sg, tot_dsds, i) { cont_a64_entry_t *cont_pkt; /* Allocate additional continuation packets? */ if (avail_dsds == 0) { /* * Five DSDs are available in the Continuation * Type 1 IOCB. */ cont_pkt = qla2x00_prep_cont_type1_iocb(vha, req); cur_dsd = cont_pkt->dsd; avail_dsds = ARRAY_SIZE(cont_pkt->dsd); } append_dsd64(&cur_dsd, sg); avail_dsds--; } } struct fw_dif_context { __le32 ref_tag; __le16 app_tag; uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/ uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/ }; /* * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command * */ static inline void qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt, unsigned int protcnt) { struct scsi_cmnd *cmd = GET_CMD_SP(sp); pkt->ref_tag = cpu_to_le32(scsi_prot_ref_tag(cmd)); if (cmd->prot_flags & SCSI_PROT_REF_CHECK && qla2x00_hba_err_chk_enabled(sp)) { pkt->ref_tag_mask[0] = 0xff; pkt->ref_tag_mask[1] = 0xff; pkt->ref_tag_mask[2] = 0xff; pkt->ref_tag_mask[3] = 0xff; } pkt->app_tag = cpu_to_le16(0); pkt->app_tag_mask[0] = 0x0; pkt->app_tag_mask[1] = 0x0; } int qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx, uint32_t *partial) { struct scatterlist *sg; uint32_t cumulative_partial, sg_len; dma_addr_t sg_dma_addr; if (sgx->num_bytes == sgx->tot_bytes) return 0; sg = sgx->cur_sg; cumulative_partial = sgx->tot_partial; sg_dma_addr = sg_dma_address(sg); sg_len = sg_dma_len(sg); sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed; if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) { sgx->dma_len = (blk_sz - cumulative_partial); sgx->tot_partial = 0; sgx->num_bytes += blk_sz; *partial = 0; } else { sgx->dma_len = sg_len - sgx->bytes_consumed; sgx->tot_partial += sgx->dma_len; *partial = 1; } sgx->bytes_consumed += sgx->dma_len; if (sg_len == sgx->bytes_consumed) { sg = sg_next(sg); sgx->num_sg++; sgx->cur_sg = sg; sgx->bytes_consumed = 0; } return 1; } int qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc) { void *next_dsd; uint8_t avail_dsds = 0; uint32_t dsd_list_len; struct dsd_dma *dsd_ptr; struct scatterlist *sg_prot; struct dsd64 *cur_dsd = dsd; uint16_t used_dsds = tot_dsds; uint32_t prot_int; /* protection interval */ uint32_t partial; struct qla2_sgx sgx; dma_addr_t sle_dma; uint32_t sle_dma_len, tot_prot_dma_len = 0; struct scsi_cmnd *cmd; memset(&sgx, 0, sizeof(struct qla2_sgx)); if (sp) { cmd = GET_CMD_SP(sp); prot_int = scsi_prot_interval(cmd); sgx.tot_bytes = scsi_bufflen(cmd); sgx.cur_sg = scsi_sglist(cmd); sgx.sp = sp; sg_prot = scsi_prot_sglist(cmd); } else if (tc) { prot_int = tc->blk_sz; sgx.tot_bytes = tc->bufflen; sgx.cur_sg = tc->sg; sg_prot = tc->prot_sg; } else { BUG(); return 1; } while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) { sle_dma = sgx.dma_addr; sle_dma_len = sgx.dma_len; alloc_and_fill: /* Allocate additional continuation packets? */ if (avail_dsds == 0) { avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? QLA_DSDS_PER_IOCB : used_dsds; dsd_list_len = (avail_dsds + 1) * 12; used_dsds -= avail_dsds; /* allocate tracking DS */ dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); if (!dsd_ptr) return 1; /* allocate new list */ dsd_ptr->dsd_addr = next_dsd = dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, &dsd_ptr->dsd_list_dma); if (!next_dsd) { /* * Need to cleanup only this dsd_ptr, rest * will be done by sp_free_dma() */ kfree(dsd_ptr); return 1; } if (sp) { list_add_tail(&dsd_ptr->list, &sp->u.scmd.crc_ctx->dsd_list); sp->flags |= SRB_CRC_CTX_DSD_VALID; } else { list_add_tail(&dsd_ptr->list, &(tc->ctx->dsd_list)); *tc->ctx_dsd_alloced = 1; } /* add new list to cmd iocb or last list */ put_unaligned_le64(dsd_ptr->dsd_list_dma, &cur_dsd->address); cur_dsd->length = cpu_to_le32(dsd_list_len); cur_dsd = next_dsd; } put_unaligned_le64(sle_dma, &cur_dsd->address); cur_dsd->length = cpu_to_le32(sle_dma_len); cur_dsd++; avail_dsds--; if (partial == 0) { /* Got a full protection interval */ sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len; sle_dma_len = 8; tot_prot_dma_len += sle_dma_len; if (tot_prot_dma_len == sg_dma_len(sg_prot)) { tot_prot_dma_len = 0; sg_prot = sg_next(sg_prot); } partial = 1; /* So as to not re-enter this block */ goto alloc_and_fill; } } /* Null termination */ cur_dsd->address = 0; cur_dsd->length = 0; cur_dsd++; return 0; } int qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc) { void *next_dsd; uint8_t avail_dsds = 0; uint32_t dsd_list_len; struct dsd_dma *dsd_ptr; struct scatterlist *sg, *sgl; struct dsd64 *cur_dsd = dsd; int i; uint16_t used_dsds = tot_dsds; struct scsi_cmnd *cmd; if (sp) { cmd = GET_CMD_SP(sp); sgl = scsi_sglist(cmd); } else if (tc) { sgl = tc->sg; } else { BUG(); return 1; } for_each_sg(sgl, sg, tot_dsds, i) { /* Allocate additional continuation packets? */ if (avail_dsds == 0) { avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? QLA_DSDS_PER_IOCB : used_dsds; dsd_list_len = (avail_dsds + 1) * 12; used_dsds -= avail_dsds; /* allocate tracking DS */ dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); if (!dsd_ptr) return 1; /* allocate new list */ dsd_ptr->dsd_addr = next_dsd = dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, &dsd_ptr->dsd_list_dma); if (!next_dsd) { /* * Need to cleanup only this dsd_ptr, rest * will be done by sp_free_dma() */ kfree(dsd_ptr); return 1; } if (sp) { list_add_tail(&dsd_ptr->list, &sp->u.scmd.crc_ctx->dsd_list); sp->flags |= SRB_CRC_CTX_DSD_VALID; } else { list_add_tail(&dsd_ptr->list, &(tc->ctx->dsd_list)); *tc->ctx_dsd_alloced = 1; } /* add new list to cmd iocb or last list */ put_unaligned_le64(dsd_ptr->dsd_list_dma, &cur_dsd->address); cur_dsd->length = cpu_to_le32(dsd_list_len); cur_dsd = next_dsd; } append_dsd64(&cur_dsd, sg); avail_dsds--; } /* Null termination */ cur_dsd->address = 0; cur_dsd->length = 0; cur_dsd++; return 0; } int qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, struct dsd64 *cur_dsd, uint16_t tot_dsds, struct qla_tgt_cmd *tc) { struct dsd_dma *dsd_ptr = NULL, *dif_dsd, *nxt_dsd; struct scatterlist *sg, *sgl; struct crc_context *difctx = NULL; struct scsi_qla_host *vha; uint dsd_list_len; uint avail_dsds = 0; uint used_dsds = tot_dsds; bool dif_local_dma_alloc = false; bool direction_to_device = false; int i; if (sp) { struct scsi_cmnd *cmd = GET_CMD_SP(sp); sgl = scsi_prot_sglist(cmd); vha = sp->vha; difctx = sp->u.scmd.crc_ctx; direction_to_device = cmd->sc_data_direction == DMA_TO_DEVICE; ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021, "%s: scsi_cmnd: %p, crc_ctx: %p, sp: %p\n", __func__, cmd, difctx, sp); } else if (tc) { vha = tc->vha; sgl = tc->prot_sg; difctx = tc->ctx; direction_to_device = tc->dma_data_direction == DMA_TO_DEVICE; } else { BUG(); return 1; } ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021, "%s: enter (write=%u)\n", __func__, direction_to_device); /* if initiator doing write or target doing read */ if (direction_to_device) { for_each_sg(sgl, sg, tot_dsds, i) { u64 sle_phys = sg_phys(sg); /* If SGE addr + len flips bits in upper 32-bits */ if (MSD(sle_phys + sg->length) ^ MSD(sle_phys)) { ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe022, "%s: page boundary crossing (phys=%llx len=%x)\n", __func__, sle_phys, sg->length); if (difctx) { ha->dif_bundle_crossed_pages++; dif_local_dma_alloc = true; } else { ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe022, "%s: difctx pointer is NULL\n", __func__); } break; } } ha->dif_bundle_writes++; } else { ha->dif_bundle_reads++; } if (ql2xdifbundlinginternalbuffers) dif_local_dma_alloc = direction_to_device; if (dif_local_dma_alloc) { u32 track_difbundl_buf = 0; u32 ldma_sg_len = 0; u8 ldma_needed = 1; difctx->no_dif_bundl = 0; difctx->dif_bundl_len = 0; /* Track DSD buffers */ INIT_LIST_HEAD(&difctx->ldif_dsd_list); /* Track local DMA buffers */ INIT_LIST_HEAD(&difctx->ldif_dma_hndl_list); for_each_sg(sgl, sg, tot_dsds, i) { u32 sglen = sg_dma_len(sg); ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe023, "%s: sg[%x] (phys=%llx sglen=%x) ldma_sg_len: %x dif_bundl_len: %x ldma_needed: %x\n", __func__, i, (u64)sg_phys(sg), sglen, ldma_sg_len, difctx->dif_bundl_len, ldma_needed); while (sglen) { u32 xfrlen = 0; if (ldma_needed) { /* * Allocate list item to store * the DMA buffers */ dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC); if (!dsd_ptr) { ql_dbg(ql_dbg_tgt, vha, 0xe024, "%s: failed alloc dsd_ptr\n", __func__); return 1; } ha->dif_bundle_kallocs++; /* allocate dma buffer */ dsd_ptr->dsd_addr = dma_pool_alloc (ha->dif_bundl_pool, GFP_ATOMIC, &dsd_ptr->dsd_list_dma); if (!dsd_ptr->dsd_addr) { ql_dbg(ql_dbg_tgt, vha, 0xe024, "%s: failed alloc ->dsd_ptr\n", __func__); /* * need to cleanup only this * dsd_ptr rest will be done * by sp_free_dma() */ kfree(dsd_ptr); ha->dif_bundle_kallocs--; return 1; } ha->dif_bundle_dma_allocs++; ldma_needed = 0; difctx->no_dif_bundl++; list_add_tail(&dsd_ptr->list, &difctx->ldif_dma_hndl_list); } /* xfrlen is min of dma pool size and sglen */ xfrlen = (sglen > (DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len)) ? DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len : sglen; /* replace with local allocated dma buffer */ sg_pcopy_to_buffer(sgl, sg_nents(sgl), dsd_ptr->dsd_addr + ldma_sg_len, xfrlen, difctx->dif_bundl_len); difctx->dif_bundl_len += xfrlen; sglen -= xfrlen; ldma_sg_len += xfrlen; if (ldma_sg_len == DIF_BUNDLING_DMA_POOL_SIZE || sg_is_last(sg)) { ldma_needed = 1; ldma_sg_len = 0; } } } track_difbundl_buf = used_dsds = difctx->no_dif_bundl; ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe025, "dif_bundl_len=%x, no_dif_bundl=%x track_difbundl_buf: %x\n", difctx->dif_bundl_len, difctx->no_dif_bundl, track_difbundl_buf); if (sp) sp->flags |= SRB_DIF_BUNDL_DMA_VALID; else tc->prot_flags = DIF_BUNDL_DMA_VALID; list_for_each_entry_safe(dif_dsd, nxt_dsd, &difctx->ldif_dma_hndl_list, list) { u32 sglen = (difctx->dif_bundl_len > DIF_BUNDLING_DMA_POOL_SIZE) ? DIF_BUNDLING_DMA_POOL_SIZE : difctx->dif_bundl_len; BUG_ON(track_difbundl_buf == 0); /* Allocate additional continuation packets? */ if (avail_dsds == 0) { ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe024, "%s: adding continuation iocb's\n", __func__); avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? QLA_DSDS_PER_IOCB : used_dsds; dsd_list_len = (avail_dsds + 1) * 12; used_dsds -= avail_dsds; /* allocate tracking DS */ dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC); if (!dsd_ptr) { ql_dbg(ql_dbg_tgt, vha, 0xe026, "%s: failed alloc dsd_ptr\n", __func__); return 1; } ha->dif_bundle_kallocs++; difctx->no_ldif_dsd++; /* allocate new list */ dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, &dsd_ptr->dsd_list_dma); if (!dsd_ptr->dsd_addr) { ql_dbg(ql_dbg_tgt, vha, 0xe026, "%s: failed alloc ->dsd_addr\n", __func__); /* * need to cleanup only this dsd_ptr * rest will be done by sp_free_dma() */ kfree(dsd_ptr); ha->dif_bundle_kallocs--; return 1; } ha->dif_bundle_dma_allocs++; if (sp) { list_add_tail(&dsd_ptr->list, &difctx->ldif_dsd_list); sp->flags |= SRB_CRC_CTX_DSD_VALID; } else { list_add_tail(&dsd_ptr->list, &difctx->ldif_dsd_list); tc->ctx_dsd_alloced = 1; } /* add new list to cmd iocb or last list */ put_unaligned_le64(dsd_ptr->dsd_list_dma, &cur_dsd->address); cur_dsd->length = cpu_to_le32(dsd_list_len); cur_dsd = dsd_ptr->dsd_addr; } put_unaligned_le64(dif_dsd->dsd_list_dma, &cur_dsd->address); cur_dsd->length = cpu_to_le32(sglen); cur_dsd++; avail_dsds--; difctx->dif_bundl_len -= sglen; track_difbundl_buf--; } ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe026, "%s: no_ldif_dsd:%x, no_dif_bundl:%x\n", __func__, difctx->no_ldif_dsd, difctx->no_dif_bundl); } else { for_each_sg(sgl, sg, tot_dsds, i) { /* Allocate additional continuation packets? */ if (avail_dsds == 0) { avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? QLA_DSDS_PER_IOCB : used_dsds; dsd_list_len = (avail_dsds + 1) * 12; used_dsds -= avail_dsds; /* allocate tracking DS */ dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC); if (!dsd_ptr) { ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe027, "%s: failed alloc dsd_dma...\n", __func__); return 1; } /* allocate new list */ dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, &dsd_ptr->dsd_list_dma); if (!dsd_ptr->dsd_addr) { /* need to cleanup only this dsd_ptr */ /* rest will be done by sp_free_dma() */ kfree(dsd_ptr); return 1; } if (sp) { list_add_tail(&dsd_ptr->list, &difctx->dsd_list); sp->flags |= SRB_CRC_CTX_DSD_VALID; } else { list_add_tail(&dsd_ptr->list, &difctx->dsd_list); tc->ctx_dsd_alloced = 1; } /* add new list to cmd iocb or last list */ put_unaligned_le64(dsd_ptr->dsd_list_dma, &cur_dsd->address); cur_dsd->length = cpu_to_le32(dsd_list_len); cur_dsd = dsd_ptr->dsd_addr; } append_dsd64(&cur_dsd, sg); avail_dsds--; } } /* Null termination */ cur_dsd->address = 0; cur_dsd->length = 0; cur_dsd++; return 0; } /** * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command * Type 6 IOCB types. * * @sp: SRB command to process * @cmd_pkt: Command type 3 IOCB * @tot_dsds: Total number of segments to transfer * @tot_prot_dsds: Total number of segments with protection information * @fw_prot_opts: Protection options to be passed to firmware */ static inline int qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts) { struct dsd64 *cur_dsd; __be32 *fcp_dl; scsi_qla_host_t *vha; struct scsi_cmnd *cmd; uint32_t total_bytes = 0; uint32_t data_bytes; uint32_t dif_bytes; uint8_t bundling = 1; uint16_t blk_size; struct crc_context *crc_ctx_pkt = NULL; struct qla_hw_data *ha; uint8_t additional_fcpcdb_len; uint16_t fcp_cmnd_len; struct fcp_cmnd *fcp_cmnd; dma_addr_t crc_ctx_dma; cmd = GET_CMD_SP(sp); /* Update entry type to indicate Command Type CRC_2 IOCB */ put_unaligned_le32(COMMAND_TYPE_CRC_2, &cmd_pkt->entry_type); vha = sp->vha; ha = vha->hw; /* No data transfer */ data_bytes = scsi_bufflen(cmd); if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { cmd_pkt->byte_count = cpu_to_le32(0); return QLA_SUCCESS; } cmd_pkt->vp_index = sp->vha->vp_idx; /* Set transfer direction */ if (cmd->sc_data_direction == DMA_TO_DEVICE) { cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA); } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA); } if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) || (scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) || (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT)) bundling = 0; /* Allocate CRC context from global pool */ crc_ctx_pkt = sp->u.scmd.crc_ctx = dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma); if (!crc_ctx_pkt) goto crc_queuing_error; crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; sp->flags |= SRB_CRC_CTX_DMA_VALID; /* Set handle */ crc_ctx_pkt->handle = cmd_pkt->handle; INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *) &crc_ctx_pkt->ref_tag, tot_prot_dsds); put_unaligned_le64(crc_ctx_dma, &cmd_pkt->crc_context_address); cmd_pkt->crc_context_len = cpu_to_le16(CRC_CONTEXT_LEN_FW); /* Determine SCSI command length -- align to 4 byte boundary */ if (cmd->cmd_len > 16) { additional_fcpcdb_len = cmd->cmd_len - 16; if ((cmd->cmd_len % 4) != 0) { /* SCSI cmd > 16 bytes must be multiple of 4 */ goto crc_queuing_error; } fcp_cmnd_len = 12 + cmd->cmd_len + 4; } else { additional_fcpcdb_len = 0; fcp_cmnd_len = 12 + 16 + 4; } fcp_cmnd = &crc_ctx_pkt->fcp_cmnd; fcp_cmnd->additional_cdb_len = additional_fcpcdb_len; if (cmd->sc_data_direction == DMA_TO_DEVICE) fcp_cmnd->additional_cdb_len |= 1; else if (cmd->sc_data_direction == DMA_FROM_DEVICE) fcp_cmnd->additional_cdb_len |= 2; int_to_scsilun(cmd->device->lun, &fcp_cmnd->lun); memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len); put_unaligned_le64(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF, &cmd_pkt->fcp_cmnd_dseg_address); fcp_cmnd->task_management = 0; fcp_cmnd->task_attribute = TSK_SIMPLE; cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ /* Compute dif len and adjust data len to incude protection */ dif_bytes = 0; blk_size = cmd->device->sector_size; dif_bytes = (data_bytes / blk_size) * 8; switch (scsi_get_prot_op(GET_CMD_SP(sp))) { case SCSI_PROT_READ_INSERT: case SCSI_PROT_WRITE_STRIP: total_bytes = data_bytes; data_bytes += dif_bytes; break; case SCSI_PROT_READ_STRIP: case SCSI_PROT_WRITE_INSERT: case SCSI_PROT_READ_PASS: case SCSI_PROT_WRITE_PASS: total_bytes = data_bytes + dif_bytes; break; default: BUG(); } if (!qla2x00_hba_err_chk_enabled(sp)) fw_prot_opts |= 0x10; /* Disable Guard tag checking */ /* HBA error checking enabled */ else if (IS_PI_UNINIT_CAPABLE(ha)) { if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1) || (scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE2)) fw_prot_opts |= BIT_10; else if (scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE3) fw_prot_opts |= BIT_11; } if (!bundling) { cur_dsd = &crc_ctx_pkt->u.nobundling.data_dsd[0]; } else { /* * Configure Bundling if we need to fetch interlaving * protection PCI accesses */ fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds - tot_prot_dsds); cur_dsd = &crc_ctx_pkt->u.bundling.data_dsd[0]; } /* Finish the common fields of CRC pkt */ crc_ctx_pkt->blk_size = cpu_to_le16(blk_size); crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); crc_ctx_pkt->guard_seed = cpu_to_le16(0); /* Fibre channel byte count */ cmd_pkt->byte_count = cpu_to_le32(total_bytes); fcp_dl = (__be32 *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 + additional_fcpcdb_len); *fcp_dl = htonl(total_bytes); if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { cmd_pkt->byte_count = cpu_to_le32(0); return QLA_SUCCESS; } /* Walks data segments */ cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); if (!bundling && tot_prot_dsds) { if (qla24xx_walk_and_build_sglist_no_difb(ha, sp, cur_dsd, tot_dsds, NULL)) goto crc_queuing_error; } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd, (tot_dsds - tot_prot_dsds), NULL)) goto crc_queuing_error; if (bundling && tot_prot_dsds) { /* Walks dif segments */ cmd_pkt->control_flags |= cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); cur_dsd = &crc_ctx_pkt->u.bundling.dif_dsd; if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd, tot_prot_dsds, NULL)) goto crc_queuing_error; } return QLA_SUCCESS; crc_queuing_error: /* Cleanup will be performed by the caller */ return QLA_FUNCTION_FAILED; } /** * qla24xx_start_scsi() - Send a SCSI command to the ISP * @sp: command to send to the ISP * * Returns non-zero if a failure occurred, else zero. */ int qla24xx_start_scsi(srb_t *sp) { int nseg; unsigned long flags; uint32_t *clr_ptr; uint32_t handle; struct cmd_type_7 *cmd_pkt; uint16_t cnt; uint16_t req_cnt; uint16_t tot_dsds; struct req_que *req = NULL; struct rsp_que *rsp; struct scsi_cmnd *cmd = GET_CMD_SP(sp); struct scsi_qla_host *vha = sp->vha; struct qla_hw_data *ha = vha->hw; if (sp->fcport->edif.enable && (sp->fcport->flags & FCF_FCSP_DEVICE)) return qla28xx_start_scsi_edif(sp); /* Setup device pointers. */ req = vha->req; rsp = req->rsp; /* So we know we haven't pci_map'ed anything yet */ tot_dsds = 0; /* Send marker if required */ if (vha->marker_needed != 0) { if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) return QLA_FUNCTION_FAILED; vha->marker_needed = 0; } /* Acquire ring specific lock */ spin_lock_irqsave(&ha->hardware_lock, flags); handle = qla2xxx_get_next_handle(req); if (handle == 0) goto queuing_error; /* Map the sg table so we have an accurate count of sg entries needed */ if (scsi_sg_count(cmd)) { nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), scsi_sg_count(cmd), cmd->sc_data_direction); if (unlikely(!nseg)) goto queuing_error; } else nseg = 0; tot_dsds = nseg; req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH; sp->iores.exch_cnt = 1; sp->iores.iocb_cnt = req_cnt; if (qla_get_fw_resources(sp->qpair, &sp->iores)) goto queuing_error; if (req->cnt < (req_cnt + 2)) { if (IS_SHADOW_REG_CAPABLE(ha)) { cnt = *req->out_ptr; } else { cnt = rd_reg_dword_relaxed(req->req_q_out); if (qla2x00_check_reg16_for_disconnect(vha, cnt)) goto queuing_error; } if (req->ring_index < cnt) req->cnt = cnt - req->ring_index; else req->cnt = req->length - (req->ring_index - cnt); if (req->cnt < (req_cnt + 2)) goto queuing_error; } /* Build command packet. */ req->current_outstanding_cmd = handle; req->outstanding_cmds[handle] = sp; sp->handle = handle; cmd->host_scribble = (unsigned char *)(unsigned long)handle; req->cnt -= req_cnt; cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; cmd_pkt->handle = make_handle(req->id, handle); /* Zero out remaining portion of packet. */ /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ clr_ptr = (uint32_t *)cmd_pkt + 2; memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); /* Set NPORT-ID and LUN number*/ cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; cmd_pkt->vp_index = sp->vha->vp_idx; int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); cmd_pkt->task = TSK_SIMPLE; /* Load SCSI command packet. */ memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); /* Build IOCB segments */ qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); /* Set total data segment count. */ cmd_pkt->entry_count = (uint8_t)req_cnt; wmb(); /* Adjust ring index. */ req->ring_index++; if (req->ring_index == req->length) { req->ring_index = 0; req->ring_ptr = req->ring; } else req->ring_ptr++; sp->qpair->cmd_cnt++; sp->flags |= SRB_DMA_VALID; /* Set chip new ring index. */ wrt_reg_dword(req->req_q_in, req->ring_index); /* Manage unprocessed RIO/ZIO commands in response queue. */ if (vha->flags.process_response_queue && rsp->ring_ptr->signature != RESPONSE_PROCESSED) qla24xx_process_response_queue(vha, rsp); spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_SUCCESS; queuing_error: if (tot_dsds) scsi_dma_unmap(cmd); qla_put_fw_resources(sp->qpair, &sp->iores); spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_FUNCTION_FAILED; } /** * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP * @sp: command to send to the ISP * * Returns non-zero if a failure occurred, else zero. */ int qla24xx_dif_start_scsi(srb_t *sp) { int nseg; unsigned long flags; uint32_t *clr_ptr; uint32_t handle; uint16_t cnt; uint16_t req_cnt = 0; uint16_t tot_dsds; uint16_t tot_prot_dsds; uint16_t fw_prot_opts = 0; struct req_que *req = NULL; struct rsp_que *rsp = NULL; struct scsi_cmnd *cmd = GET_CMD_SP(sp); struct scsi_qla_host *vha = sp->vha; struct qla_hw_data *ha = vha->hw; struct cmd_type_crc_2 *cmd_pkt; uint32_t status = 0; #define QDSS_GOT_Q_SPACE BIT_0 /* Only process protection or >16 cdb in this routine */ if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { if (cmd->cmd_len <= 16) return qla24xx_start_scsi(sp); else return qla_start_scsi_type6(sp); } /* Setup device pointers. */ req = vha->req; rsp = req->rsp; /* So we know we haven't pci_map'ed anything yet */ tot_dsds = 0; /* Send marker if required */ if (vha->marker_needed != 0) { if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) return QLA_FUNCTION_FAILED; vha->marker_needed = 0; } /* Acquire ring specific lock */ spin_lock_irqsave(&ha->hardware_lock, flags); handle = qla2xxx_get_next_handle(req); if (handle == 0) goto queuing_error; /* Compute number of required data segments */ /* Map the sg table so we have an accurate count of sg entries needed */ if (scsi_sg_count(cmd)) { nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), scsi_sg_count(cmd), cmd->sc_data_direction); if (unlikely(!nseg)) goto queuing_error; else sp->flags |= SRB_DMA_VALID; if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { struct qla2_sgx sgx; uint32_t partial; memset(&sgx, 0, sizeof(struct qla2_sgx)); sgx.tot_bytes = scsi_bufflen(cmd); sgx.cur_sg = scsi_sglist(cmd); sgx.sp = sp; nseg = 0; while (qla24xx_get_one_block_sg( cmd->device->sector_size, &sgx, &partial)) nseg++; } } else nseg = 0; /* number of required data segments */ tot_dsds = nseg; /* Compute number of required protection segments */ if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), scsi_prot_sg_count(cmd), cmd->sc_data_direction); if (unlikely(!nseg)) goto queuing_error; else sp->flags |= SRB_CRC_PROT_DMA_VALID; if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { nseg = scsi_bufflen(cmd) / cmd->device->sector_size; } } else { nseg = 0; } req_cnt = 1; /* Total Data and protection sg segment(s) */ tot_prot_dsds = nseg; tot_dsds += nseg; sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH; sp->iores.exch_cnt = 1; sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds); if (qla_get_fw_resources(sp->qpair, &sp->iores)) goto queuing_error; if (req->cnt < (req_cnt + 2)) { if (IS_SHADOW_REG_CAPABLE(ha)) { cnt = *req->out_ptr; } else { cnt = rd_reg_dword_relaxed(req->req_q_out); if (qla2x00_check_reg16_for_disconnect(vha, cnt)) goto queuing_error; } if (req->ring_index < cnt) req->cnt = cnt - req->ring_index; else req->cnt = req->length - (req->ring_index - cnt); if (req->cnt < (req_cnt + 2)) goto queuing_error; } status |= QDSS_GOT_Q_SPACE; /* Build header part of command packet (excluding the OPCODE). */ req->current_outstanding_cmd = handle; req->outstanding_cmds[handle] = sp; sp->handle = handle; cmd->host_scribble = (unsigned char *)(unsigned long)handle; req->cnt -= req_cnt; /* Fill-in common area */ cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; cmd_pkt->handle = make_handle(req->id, handle); clr_ptr = (uint32_t *)cmd_pkt + 2; memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); /* Set NPORT-ID and LUN number*/ cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); /* Total Data and protection segment(s) */ cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); /* Build IOCB segments and adjust for data protection segments */ if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != QLA_SUCCESS) goto queuing_error; cmd_pkt->entry_count = (uint8_t)req_cnt; /* Specify response queue number where completion should happen */ cmd_pkt->entry_status = (uint8_t) rsp->id; cmd_pkt->timeout = cpu_to_le16(0); wmb(); /* Adjust ring index. */ req->ring_index++; if (req->ring_index == req->length) { req->ring_index = 0; req->ring_ptr = req->ring; } else req->ring_ptr++; sp->qpair->cmd_cnt++; /* Set chip new ring index. */ wrt_reg_dword(req->req_q_in, req->ring_index); /* Manage unprocessed RIO/ZIO commands in response queue. */ if (vha->flags.process_response_queue && rsp->ring_ptr->signature != RESPONSE_PROCESSED) qla24xx_process_response_queue(vha, rsp); spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_SUCCESS; queuing_error: if (status & QDSS_GOT_Q_SPACE) { req->outstanding_cmds[handle] = NULL; req->cnt += req_cnt; } /* Cleanup will be performed by the caller (queuecommand) */ qla_put_fw_resources(sp->qpair, &sp->iores); spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_FUNCTION_FAILED; } /** * qla2xxx_start_scsi_mq() - Send a SCSI command to the ISP * @sp: command to send to the ISP * * Returns non-zero if a failure occurred, else zero. */ static int qla2xxx_start_scsi_mq(srb_t *sp) { int nseg; unsigned long flags; uint32_t *clr_ptr; uint32_t handle; struct cmd_type_7 *cmd_pkt; uint16_t cnt; uint16_t req_cnt; uint16_t tot_dsds; struct req_que *req = NULL; struct rsp_que *rsp; struct scsi_cmnd *cmd = GET_CMD_SP(sp); struct scsi_qla_host *vha = sp->fcport->vha; struct qla_hw_data *ha = vha->hw; struct qla_qpair *qpair = sp->qpair; if (sp->fcport->edif.enable && (sp->fcport->flags & FCF_FCSP_DEVICE)) return qla28xx_start_scsi_edif(sp); /* Acquire qpair specific lock */ spin_lock_irqsave(&qpair->qp_lock, flags); /* Setup qpair pointers */ req = qpair->req; rsp = qpair->rsp; /* So we know we haven't pci_map'ed anything yet */ tot_dsds = 0; /* Send marker if required */ if (vha->marker_needed != 0) { if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { spin_unlock_irqrestore(&qpair->qp_lock, flags); return QLA_FUNCTION_FAILED; } vha->marker_needed = 0; } handle = qla2xxx_get_next_handle(req); if (handle == 0) goto queuing_error; /* Map the sg table so we have an accurate count of sg entries needed */ if (scsi_sg_count(cmd)) { nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), scsi_sg_count(cmd), cmd->sc_data_direction); if (unlikely(!nseg)) goto queuing_error; } else nseg = 0; tot_dsds = nseg; req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH; sp->iores.exch_cnt = 1; sp->iores.iocb_cnt = req_cnt; if (qla_get_fw_resources(sp->qpair, &sp->iores)) goto queuing_error; if (req->cnt < (req_cnt + 2)) { if (IS_SHADOW_REG_CAPABLE(ha)) { cnt = *req->out_ptr; } else { cnt = rd_reg_dword_relaxed(req->req_q_out); if (qla2x00_check_reg16_for_disconnect(vha, cnt)) goto queuing_error; } if (req->ring_index < cnt) req->cnt = cnt - req->ring_index; else req->cnt = req->length - (req->ring_index - cnt); if (req->cnt < (req_cnt + 2)) goto queuing_error; } /* Build command packet. */ req->current_outstanding_cmd = handle; req->outstanding_cmds[handle] = sp; sp->handle = handle; cmd->host_scribble = (unsigned char *)(unsigned long)handle; req->cnt -= req_cnt; cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; cmd_pkt->handle = make_handle(req->id, handle); /* Zero out remaining portion of packet. */ /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ clr_ptr = (uint32_t *)cmd_pkt + 2; memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); /* Set NPORT-ID and LUN number*/ cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; cmd_pkt->vp_index = sp->fcport->vha->vp_idx; int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); cmd_pkt->task = TSK_SIMPLE; /* Load SCSI command packet. */ memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); /* Build IOCB segments */ qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); /* Set total data segment count. */ cmd_pkt->entry_count = (uint8_t)req_cnt; wmb(); /* Adjust ring index. */ req->ring_index++; if (req->ring_index == req->length) { req->ring_index = 0; req->ring_ptr = req->ring; } else req->ring_ptr++; sp->qpair->cmd_cnt++; sp->flags |= SRB_DMA_VALID; /* Set chip new ring index. */ wrt_reg_dword(req->req_q_in, req->ring_index); /* Manage unprocessed RIO/ZIO commands in response queue. */ if (vha->flags.process_response_queue && rsp->ring_ptr->signature != RESPONSE_PROCESSED) qla24xx_process_response_queue(vha, rsp); spin_unlock_irqrestore(&qpair->qp_lock, flags); return QLA_SUCCESS; queuing_error: if (tot_dsds) scsi_dma_unmap(cmd); qla_put_fw_resources(sp->qpair, &sp->iores); spin_unlock_irqrestore(&qpair->qp_lock, flags); return QLA_FUNCTION_FAILED; } /** * qla2xxx_dif_start_scsi_mq() - Send a SCSI command to the ISP * @sp: command to send to the ISP * * Returns non-zero if a failure occurred, else zero. */ int qla2xxx_dif_start_scsi_mq(srb_t *sp) { int nseg; unsigned long flags; uint32_t *clr_ptr; uint32_t handle; uint16_t cnt; uint16_t req_cnt = 0; uint16_t tot_dsds; uint16_t tot_prot_dsds; uint16_t fw_prot_opts = 0; struct req_que *req = NULL; struct rsp_que *rsp = NULL; struct scsi_cmnd *cmd = GET_CMD_SP(sp); struct scsi_qla_host *vha = sp->fcport->vha; struct qla_hw_data *ha = vha->hw; struct cmd_type_crc_2 *cmd_pkt; uint32_t status = 0; struct qla_qpair *qpair = sp->qpair; #define QDSS_GOT_Q_SPACE BIT_0 /* Check for host side state */ if (!qpair->online) { cmd->result = DID_NO_CONNECT << 16; return QLA_INTERFACE_ERROR; } if (!qpair->difdix_supported && scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { cmd->result = DID_NO_CONNECT << 16; return QLA_INTERFACE_ERROR; } /* Only process protection or >16 cdb in this routine */ if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { if (cmd->cmd_len <= 16) return qla2xxx_start_scsi_mq(sp); else return qla_start_scsi_type6(sp); } spin_lock_irqsave(&qpair->qp_lock, flags); /* Setup qpair pointers */ rsp = qpair->rsp; req = qpair->req; /* So we know we haven't pci_map'ed anything yet */ tot_dsds = 0; /* Send marker if required */ if (vha->marker_needed != 0) { if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { spin_unlock_irqrestore(&qpair->qp_lock, flags); return QLA_FUNCTION_FAILED; } vha->marker_needed = 0; } handle = qla2xxx_get_next_handle(req); if (handle == 0) goto queuing_error; /* Compute number of required data segments */ /* Map the sg table so we have an accurate count of sg entries needed */ if (scsi_sg_count(cmd)) { nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), scsi_sg_count(cmd), cmd->sc_data_direction); if (unlikely(!nseg)) goto queuing_error; else sp->flags |= SRB_DMA_VALID; if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { struct qla2_sgx sgx; uint32_t partial; memset(&sgx, 0, sizeof(struct qla2_sgx)); sgx.tot_bytes = scsi_bufflen(cmd); sgx.cur_sg = scsi_sglist(cmd); sgx.sp = sp; nseg = 0; while (qla24xx_get_one_block_sg( cmd->device->sector_size, &sgx, &partial)) nseg++; } } else nseg = 0; /* number of required data segments */ tot_dsds = nseg; /* Compute number of required protection segments */ if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), scsi_prot_sg_count(cmd), cmd->sc_data_direction); if (unlikely(!nseg)) goto queuing_error; else sp->flags |= SRB_CRC_PROT_DMA_VALID; if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { nseg = scsi_bufflen(cmd) / cmd->device->sector_size; } } else { nseg = 0; } req_cnt = 1; /* Total Data and protection sg segment(s) */ tot_prot_dsds = nseg; tot_dsds += nseg; sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH; sp->iores.exch_cnt = 1; sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds); if (qla_get_fw_resources(sp->qpair, &sp->iores)) goto queuing_error; if (req->cnt < (req_cnt + 2)) { if (IS_SHADOW_REG_CAPABLE(ha)) { cnt = *req->out_ptr; } else { cnt = rd_reg_dword_relaxed(req->req_q_out); if (qla2x00_check_reg16_for_disconnect(vha, cnt)) goto queuing_error; } if (req->ring_index < cnt) req->cnt = cnt - req->ring_index; else req->cnt = req->length - (req->ring_index - cnt); if (req->cnt < (req_cnt + 2)) goto queuing_error; } status |= QDSS_GOT_Q_SPACE; /* Build header part of command packet (excluding the OPCODE). */ req->current_outstanding_cmd = handle; req->outstanding_cmds[handle] = sp; sp->handle = handle; cmd->host_scribble = (unsigned char *)(unsigned long)handle; req->cnt -= req_cnt; /* Fill-in common area */ cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; cmd_pkt->handle = make_handle(req->id, handle); clr_ptr = (uint32_t *)cmd_pkt + 2; memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); /* Set NPORT-ID and LUN number*/ cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); /* Total Data and protection segment(s) */ cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); /* Build IOCB segments and adjust for data protection segments */ if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != QLA_SUCCESS) goto queuing_error; cmd_pkt->entry_count = (uint8_t)req_cnt; cmd_pkt->timeout = cpu_to_le16(0); wmb(); /* Adjust ring index. */ req->ring_index++; if (req->ring_index == req->length) { req->ring_index = 0; req->ring_ptr = req->ring; } else req->ring_ptr++; sp->qpair->cmd_cnt++; /* Set chip new ring index. */ wrt_reg_dword(req->req_q_in, req->ring_index); /* Manage unprocessed RIO/ZIO commands in response queue. */ if (vha->flags.process_response_queue && rsp->ring_ptr->signature != RESPONSE_PROCESSED) qla24xx_process_response_queue(vha, rsp); spin_unlock_irqrestore(&qpair->qp_lock, flags); return QLA_SUCCESS; queuing_error: if (status & QDSS_GOT_Q_SPACE) { req->outstanding_cmds[handle] = NULL; req->cnt += req_cnt; } /* Cleanup will be performed by the caller (queuecommand) */ qla_put_fw_resources(sp->qpair, &sp->iores); spin_unlock_irqrestore(&qpair->qp_lock, flags); return QLA_FUNCTION_FAILED; } /* Generic Control-SRB manipulation functions. */ /* hardware_lock assumed to be held. */ void * __qla2x00_alloc_iocbs(struct qla_qpair *qpair, srb_t *sp) { scsi_qla_host_t *vha = qpair->vha; struct qla_hw_data *ha = vha->hw; struct req_que *req = qpair->req; device_reg_t *reg = ISP_QUE_REG(ha, req->id); uint32_t handle; request_t *pkt; uint16_t cnt, req_cnt; pkt = NULL; req_cnt = 1; handle = 0; if (sp && (sp->type != SRB_SCSI_CMD)) { /* Adjust entry-counts as needed. */ req_cnt = sp->iocbs; } /* Check for room on request queue. */ if (req->cnt < req_cnt + 2) { if (qpair->use_shadow_reg) cnt = *req->out_ptr; else if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) cnt = rd_reg_dword(®->isp25mq.req_q_out); else if (IS_P3P_TYPE(ha)) cnt = rd_reg_dword(reg->isp82.req_q_out); else if (IS_FWI2_CAPABLE(ha)) cnt = rd_reg_dword(®->isp24.req_q_out); else if (IS_QLAFX00(ha)) cnt = rd_reg_dword(®->ispfx00.req_q_out); else cnt = qla2x00_debounce_register( ISP_REQ_Q_OUT(ha, ®->isp)); if (!qpair->use_shadow_reg && cnt == ISP_REG16_DISCONNECT) { qla_schedule_eeh_work(vha); return NULL; } if (req->ring_index < cnt) req->cnt = cnt - req->ring_index; else req->cnt = req->length - (req->ring_index - cnt); } if (req->cnt < req_cnt + 2) goto queuing_error; if (sp) { handle = qla2xxx_get_next_handle(req); if (handle == 0) { ql_log(ql_log_warn, vha, 0x700b, "No room on outstanding cmd array.\n"); goto queuing_error; } /* Prep command array. */ req->current_outstanding_cmd = handle; req->outstanding_cmds[handle] = sp; sp->handle = handle; } /* Prep packet */ req->cnt -= req_cnt; pkt = req->ring_ptr; memset(pkt, 0, REQUEST_ENTRY_SIZE); if (IS_QLAFX00(ha)) { wrt_reg_byte((u8 __force __iomem *)&pkt->entry_count, req_cnt); wrt_reg_dword((__le32 __force __iomem *)&pkt->handle, handle); } else { pkt->entry_count = req_cnt; pkt->handle = handle; } return pkt; queuing_error: qpair->tgt_counters.num_alloc_iocb_failed++; return pkt; } void * qla2x00_alloc_iocbs_ready(struct qla_qpair *qpair, srb_t *sp) { scsi_qla_host_t *vha = qpair->vha; if (qla2x00_reset_active(vha)) return NULL; return __qla2x00_alloc_iocbs(qpair, sp); } void * qla2x00_alloc_iocbs(struct scsi_qla_host *vha, srb_t *sp) { return __qla2x00_alloc_iocbs(vha->hw->base_qpair, sp); } static void qla24xx_prli_iocb(srb_t *sp, struct logio_entry_24xx *logio) { struct srb_iocb *lio = &sp->u.iocb_cmd; logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI); if (lio->u.logio.flags & SRB_LOGIN_NVME_PRLI) { logio->control_flags |= cpu_to_le16(LCF_NVME_PRLI); if (sp->vha->flags.nvme_first_burst) logio->io_parameter[0] = cpu_to_le32(NVME_PRLI_SP_FIRST_BURST); if (sp->vha->flags.nvme2_enabled) { /* Set service parameter BIT_7 for NVME CONF support */ logio->io_parameter[0] |= cpu_to_le32(NVME_PRLI_SP_CONF); /* Set service parameter BIT_8 for SLER support */ logio->io_parameter[0] |= cpu_to_le32(NVME_PRLI_SP_SLER); /* Set service parameter BIT_9 for PI control support */ logio->io_parameter[0] |= cpu_to_le32(NVME_PRLI_SP_PI_CTRL); } } logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); logio->port_id[0] = sp->fcport->d_id.b.al_pa; logio->port_id[1] = sp->fcport->d_id.b.area; logio->port_id[2] = sp->fcport->d_id.b.domain; logio->vp_index = sp->vha->vp_idx; } static void qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) { struct srb_iocb *lio = &sp->u.iocb_cmd; logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); if (lio->u.logio.flags & SRB_LOGIN_PRLI_ONLY) { logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI); } else { logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); if (lio->u.logio.flags & SRB_LOGIN_FCSP) { logio->control_flags |= cpu_to_le16(LCF_COMMON_FEAT | LCF_SKIP_PRLI); logio->io_parameter[0] = cpu_to_le32(LIO_COMM_FEAT_FCSP | LIO_COMM_FEAT_CIO); } } logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); logio->port_id[0] = sp->fcport->d_id.b.al_pa; logio->port_id[1] = sp->fcport->d_id.b.area; logio->port_id[2] = sp->fcport->d_id.b.domain; logio->vp_index = sp->vha->vp_idx; } static void qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) { struct qla_hw_data *ha = sp->vha->hw; struct srb_iocb *lio = &sp->u.iocb_cmd; uint16_t opts; mbx->entry_type = MBX_IOCB_TYPE; SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; if (HAS_EXTENDED_IDS(ha)) { mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); mbx->mb10 = cpu_to_le16(opts); } else { mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); } mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | sp->fcport->d_id.b.al_pa); mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); } static void qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) { u16 control_flags = LCF_COMMAND_LOGO; logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; if (sp->fcport->explicit_logout) { control_flags |= LCF_EXPL_LOGO|LCF_FREE_NPORT; } else { control_flags |= LCF_IMPL_LOGO; if (!sp->fcport->keep_nport_handle) control_flags |= LCF_FREE_NPORT; } logio->control_flags = cpu_to_le16(control_flags); logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); logio->port_id[0] = sp->fcport->d_id.b.al_pa; logio->port_id[1] = sp->fcport->d_id.b.area; logio->port_id[2] = sp->fcport->d_id.b.domain; logio->vp_index = sp->vha->vp_idx; } static void qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) { struct qla_hw_data *ha = sp->vha->hw; mbx->entry_type = MBX_IOCB_TYPE; SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); mbx->mb1 = HAS_EXTENDED_IDS(ha) ? cpu_to_le16(sp->fcport->loop_id) : cpu_to_le16(sp->fcport->loop_id << 8); mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | sp->fcport->d_id.b.al_pa); mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); /* Implicit: mbx->mbx10 = 0. */ } static void qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) { logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); logio->vp_index = sp->vha->vp_idx; } static void qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) { struct qla_hw_data *ha = sp->vha->hw; mbx->entry_type = MBX_IOCB_TYPE; SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); if (HAS_EXTENDED_IDS(ha)) { mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); mbx->mb10 = cpu_to_le16(BIT_0); } else { mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); } mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); } static void qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) { uint32_t flags; uint64_t lun; struct fc_port *fcport = sp->fcport; scsi_qla_host_t *vha = fcport->vha; struct qla_hw_data *ha = vha->hw; struct srb_iocb *iocb = &sp->u.iocb_cmd; struct req_que *req = sp->qpair->req; flags = iocb->u.tmf.flags; lun = iocb->u.tmf.lun; tsk->entry_type = TSK_MGMT_IOCB_TYPE; tsk->entry_count = 1; tsk->handle = make_handle(req->id, tsk->handle); tsk->nport_handle = cpu_to_le16(fcport->loop_id); tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); tsk->control_flags = cpu_to_le32(flags); tsk->port_id[0] = fcport->d_id.b.al_pa; tsk->port_id[1] = fcport->d_id.b.area; tsk->port_id[2] = fcport->d_id.b.domain; tsk->vp_index = fcport->vha->vp_idx; if (flags & (TCF_LUN_RESET | TCF_ABORT_TASK_SET| TCF_CLEAR_TASK_SET|TCF_CLEAR_ACA)) { int_to_scsilun(lun, &tsk->lun); host_to_fcp_swap((uint8_t *)&tsk->lun, sizeof(tsk->lun)); } } static void qla2x00_async_done(struct srb *sp, int res) { if (del_timer(&sp->u.iocb_cmd.timer)) { /* * Successfully cancelled the timeout handler * ref: TMR */ if (kref_put(&sp->cmd_kref, qla2x00_sp_release)) return; } sp->async_done(sp, res); } void qla2x00_sp_release(struct kref *kref) { struct srb *sp = container_of(kref, struct srb, cmd_kref); sp->free(sp); } void qla2x00_init_async_sp(srb_t *sp, unsigned long tmo, void (*done)(struct srb *sp, int res)) { timer_setup(&sp->u.iocb_cmd.timer, qla2x00_sp_timeout, 0); sp->done = qla2x00_async_done; sp->async_done = done; sp->free = qla2x00_sp_free; sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout; sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ; if (IS_QLAFX00(sp->vha->hw) && sp->type == SRB_FXIOCB_DCMD) init_completion(&sp->u.iocb_cmd.u.fxiocb.fxiocb_comp); sp->start_timer = 1; } static void qla2x00_els_dcmd_sp_free(srb_t *sp) { struct srb_iocb *elsio = &sp->u.iocb_cmd; kfree(sp->fcport); if (elsio->u.els_logo.els_logo_pyld) dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE, elsio->u.els_logo.els_logo_pyld, elsio->u.els_logo.els_logo_pyld_dma); del_timer(&elsio->timer); qla2x00_rel_sp(sp); } static void qla2x00_els_dcmd_iocb_timeout(void *data) { srb_t *sp = data; fc_port_t *fcport = sp->fcport; struct scsi_qla_host *vha = sp->vha; struct srb_iocb *lio = &sp->u.iocb_cmd; unsigned long flags = 0; int res, h; ql_dbg(ql_dbg_io, vha, 0x3069, "%s Timeout, hdl=%x, portid=%02x%02x%02x\n", sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); /* Abort the exchange */ res = qla24xx_async_abort_cmd(sp, false); if (res) { ql_dbg(ql_dbg_io, vha, 0x3070, "mbx abort_command failed.\n"); spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags); for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) { if (sp->qpair->req->outstanding_cmds[h] == sp) { sp->qpair->req->outstanding_cmds[h] = NULL; break; } } spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags); complete(&lio->u.els_logo.comp); } else { ql_dbg(ql_dbg_io, vha, 0x3071, "mbx abort_command success.\n"); } } static void qla2x00_els_dcmd_sp_done(srb_t *sp, int res) { fc_port_t *fcport = sp->fcport; struct srb_iocb *lio = &sp->u.iocb_cmd; struct scsi_qla_host *vha = sp->vha; ql_dbg(ql_dbg_io, vha, 0x3072, "%s hdl=%x, portid=%02x%02x%02x done\n", sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); complete(&lio->u.els_logo.comp); } int qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode, port_id_t remote_did) { srb_t *sp; fc_port_t *fcport = NULL; struct srb_iocb *elsio = NULL; struct qla_hw_data *ha = vha->hw; struct els_logo_payload logo_pyld; int rval = QLA_SUCCESS; fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL); if (!fcport) { ql_log(ql_log_info, vha, 0x70e5, "fcport allocation failed\n"); return -ENOMEM; } /* Alloc SRB structure * ref: INIT */ sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); if (!sp) { kfree(fcport); ql_log(ql_log_info, vha, 0x70e6, "SRB allocation failed\n"); return -ENOMEM; } elsio = &sp->u.iocb_cmd; fcport->loop_id = 0xFFFF; fcport->d_id.b.domain = remote_did.b.domain; fcport->d_id.b.area = remote_did.b.area; fcport->d_id.b.al_pa = remote_did.b.al_pa; ql_dbg(ql_dbg_io, vha, 0x3073, "portid=%02x%02x%02x done\n", fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); sp->type = SRB_ELS_DCMD; sp->name = "ELS_DCMD"; sp->fcport = fcport; qla2x00_init_async_sp(sp, ELS_DCMD_TIMEOUT, qla2x00_els_dcmd_sp_done); sp->free = qla2x00_els_dcmd_sp_free; sp->u.iocb_cmd.timeout = qla2x00_els_dcmd_iocb_timeout; init_completion(&sp->u.iocb_cmd.u.els_logo.comp); elsio->u.els_logo.els_logo_pyld = dma_alloc_coherent(&ha->pdev->dev, DMA_POOL_SIZE, &elsio->u.els_logo.els_logo_pyld_dma, GFP_KERNEL); if (!elsio->u.els_logo.els_logo_pyld) { /* ref: INIT */ kref_put(&sp->cmd_kref, qla2x00_sp_release); return QLA_FUNCTION_FAILED; } memset(&logo_pyld, 0, sizeof(struct els_logo_payload)); elsio->u.els_logo.els_cmd = els_opcode; logo_pyld.opcode = els_opcode; logo_pyld.s_id[0] = vha->d_id.b.al_pa; logo_pyld.s_id[1] = vha->d_id.b.area; logo_pyld.s_id[2] = vha->d_id.b.domain; host_to_fcp_swap(logo_pyld.s_id, sizeof(uint32_t)); memcpy(&logo_pyld.wwpn, vha->port_name, WWN_SIZE); memcpy(elsio->u.els_logo.els_logo_pyld, &logo_pyld, sizeof(struct els_logo_payload)); ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3075, "LOGO buffer:"); ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x010a, elsio->u.els_logo.els_logo_pyld, sizeof(*elsio->u.els_logo.els_logo_pyld)); rval = qla2x00_start_sp(sp); if (rval != QLA_SUCCESS) { /* ref: INIT */ kref_put(&sp->cmd_kref, qla2x00_sp_release); return QLA_FUNCTION_FAILED; } ql_dbg(ql_dbg_io, vha, 0x3074, "%s LOGO sent, hdl=%x, loopid=%x, portid=%02x%02x%02x.\n", sp->name, sp->handle, fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); wait_for_completion(&elsio->u.els_logo.comp); /* ref: INIT */ kref_put(&sp->cmd_kref, qla2x00_sp_release); return rval; } static void qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) { scsi_qla_host_t *vha = sp->vha; struct srb_iocb *elsio = &sp->u.iocb_cmd; els_iocb->entry_type = ELS_IOCB_TYPE; els_iocb->entry_count = 1; els_iocb->sys_define = 0; els_iocb->entry_status = 0; els_iocb->handle = sp->handle; els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); els_iocb->tx_dsd_count = cpu_to_le16(1); els_iocb->vp_index = vha->vp_idx; els_iocb->sof_type = EST_SOFI3; els_iocb->rx_dsd_count = 0; els_iocb->opcode = elsio->u.els_logo.els_cmd; els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa; els_iocb->d_id[1] = sp->fcport->d_id.b.area; els_iocb->d_id[2] = sp->fcport->d_id.b.domain; /* For SID the byte order is different than DID */ els_iocb->s_id[1] = vha->d_id.b.al_pa; els_iocb->s_id[2] = vha->d_id.b.area; els_iocb->s_id[0] = vha->d_id.b.domain; if (elsio->u.els_logo.els_cmd == ELS_DCMD_PLOGI) { if (vha->hw->flags.edif_enabled) els_iocb->control_flags = cpu_to_le16(ECF_SEC_LOGIN); else els_iocb->control_flags = 0; els_iocb->tx_byte_count = els_iocb->tx_len = cpu_to_le32(sizeof(struct els_plogi_payload)); put_unaligned_le64(elsio->u.els_plogi.els_plogi_pyld_dma, &els_iocb->tx_address); els_iocb->rx_dsd_count = cpu_to_le16(1); els_iocb->rx_byte_count = els_iocb->rx_len = cpu_to_le32(sizeof(struct els_plogi_payload)); put_unaligned_le64(elsio->u.els_plogi.els_resp_pyld_dma, &els_iocb->rx_address); ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073, "PLOGI ELS IOCB:\n"); ql_dump_buffer(ql_log_info, vha, 0x0109, (uint8_t *)els_iocb, sizeof(*els_iocb)); } else { els_iocb->tx_byte_count = cpu_to_le32(sizeof(struct els_logo_payload)); put_unaligned_le64(elsio->u.els_logo.els_logo_pyld_dma, &els_iocb->tx_address); els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload)); els_iocb->rx_byte_count = 0; els_iocb->rx_address = 0; els_iocb->rx_len = 0; ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3076, "LOGO ELS IOCB:"); ql_dump_buffer(ql_log_info, vha, 0x010b, els_iocb, sizeof(*els_iocb)); } sp->vha->qla_stats.control_requests++; } void qla2x00_els_dcmd2_iocb_timeout(void *data) { srb_t *sp = data; fc_port_t *fcport = sp->fcport; struct scsi_qla_host *vha = sp->vha; unsigned long flags = 0; int res, h; ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3069, "%s hdl=%x ELS Timeout, %8phC portid=%06x\n", sp->name, sp->handle, fcport->port_name, fcport->d_id.b24); /* Abort the exchange */ res = qla24xx_async_abort_cmd(sp, false); ql_dbg(ql_dbg_io, vha, 0x3070, "mbx abort_command %s\n", (res == QLA_SUCCESS) ? "successful" : "failed"); if (res) { spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags); for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) { if (sp->qpair->req->outstanding_cmds[h] == sp) { sp->qpair->req->outstanding_cmds[h] = NULL; break; } } spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags); sp->done(sp, QLA_FUNCTION_TIMEOUT); } } void qla2x00_els_dcmd2_free(scsi_qla_host_t *vha, struct els_plogi *els_plogi) { if (els_plogi->els_plogi_pyld) dma_free_coherent(&vha->hw->pdev->dev, els_plogi->tx_size, els_plogi->els_plogi_pyld, els_plogi->els_plogi_pyld_dma); if (els_plogi->els_resp_pyld) dma_free_coherent(&vha->hw->pdev->dev, els_plogi->rx_size, els_plogi->els_resp_pyld, els_plogi->els_resp_pyld_dma); } static void qla2x00_els_dcmd2_sp_done(srb_t *sp, int res) { fc_port_t *fcport = sp->fcport; struct srb_iocb *lio = &sp->u.iocb_cmd; struct scsi_qla_host *vha = sp->vha; struct event_arg ea; struct qla_work_evt *e; struct fc_port *conflict_fcport; port_id_t cid; /* conflict Nport id */ const __le32 *fw_status = sp->u.iocb_cmd.u.els_plogi.fw_status; u16 lid; ql_dbg(ql_dbg_disc, vha, 0x3072, "%s ELS done rc %d hdl=%x, portid=%06x %8phC\n", sp->name, res, sp->handle, fcport->d_id.b24, fcport->port_name); fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE); /* For edif, set logout on delete to ensure any residual key from FW is flushed.*/ fcport->logout_on_delete = 1; fcport->chip_reset = vha->hw->base_qpair->chip_reset; if (sp->flags & SRB_WAKEUP_ON_COMP) complete(&lio->u.els_plogi.comp); else { switch (le32_to_cpu(fw_status[0])) { case CS_DATA_UNDERRUN: case CS_COMPLETE: memset(&ea, 0, sizeof(ea)); ea.fcport = fcport; ea.rc = res; qla_handle_els_plogi_done(vha, &ea); break; case CS_IOCB_ERROR: switch (le32_to_cpu(fw_status[1])) { case LSC_SCODE_PORTID_USED: lid = le32_to_cpu(fw_status[2]) & 0xffff; qlt_find_sess_invalidate_other(vha, wwn_to_u64(fcport->port_name), fcport->d_id, lid, &conflict_fcport); if (conflict_fcport) { /* * Another fcport shares the same * loop_id & nport id; conflict * fcport needs to finish cleanup * before this fcport can proceed * to login. */ conflict_fcport->conflict = fcport; fcport->login_pause = 1; ql_dbg(ql_dbg_disc, vha, 0x20ed, "%s %d %8phC pid %06x inuse with lid %#x.\n", __func__, __LINE__, fcport->port_name, fcport->d_id.b24, lid); } else { ql_dbg(ql_dbg_disc, vha, 0x20ed, "%s %d %8phC pid %06x inuse with lid %#x sched del\n", __func__, __LINE__, fcport->port_name, fcport->d_id.b24, lid); qla2x00_clear_loop_id(fcport); set_bit(lid, vha->hw->loop_id_map); fcport->loop_id = lid; fcport->keep_nport_handle = 0; qlt_schedule_sess_for_deletion(fcport); } break; case LSC_SCODE_NPORT_USED: cid.b.domain = (le32_to_cpu(fw_status[2]) >> 16) & 0xff; cid.b.area = (le32_to_cpu(fw_status[2]) >> 8) & 0xff; cid.b.al_pa = le32_to_cpu(fw_status[2]) & 0xff; cid.b.rsvd_1 = 0; ql_dbg(ql_dbg_disc, vha, 0x20ec, "%s %d %8phC lid %#x in use with pid %06x post gnl\n", __func__, __LINE__, fcport->port_name, fcport->loop_id, cid.b24); set_bit(fcport->loop_id, vha->hw->loop_id_map); fcport->loop_id = FC_NO_LOOP_ID; qla24xx_post_gnl_work(vha, fcport); break; case LSC_SCODE_NOXCB: vha->hw->exch_starvation++; if (vha->hw->exch_starvation > 5) { ql_log(ql_log_warn, vha, 0xd046, "Exchange starvation. Resetting RISC\n"); vha->hw->exch_starvation = 0; set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); qla2xxx_wake_dpc(vha); break; } fallthrough; default: ql_dbg(ql_dbg_disc, vha, 0x20eb, "%s %8phC cmd error fw_status 0x%x 0x%x 0x%x\n", __func__, sp->fcport->port_name, fw_status[0], fw_status[1], fw_status[2]); fcport->flags &= ~FCF_ASYNC_SENT; qlt_schedule_sess_for_deletion(fcport); break; } break; default: ql_dbg(ql_dbg_disc, vha, 0x20eb, "%s %8phC cmd error 2 fw_status 0x%x 0x%x 0x%x\n", __func__, sp->fcport->port_name, fw_status[0], fw_status[1], fw_status[2]); sp->fcport->flags &= ~FCF_ASYNC_SENT; qlt_schedule_sess_for_deletion(fcport); break; } e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP); if (!e) { struct srb_iocb *elsio = &sp->u.iocb_cmd; qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi); /* ref: INIT */ kref_put(&sp->cmd_kref, qla2x00_sp_release); return; } e->u.iosb.sp = sp; qla2x00_post_work(vha, e); } } int qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode, fc_port_t *fcport, bool wait) { srb_t *sp; struct srb_iocb *elsio = NULL; struct qla_hw_data *ha = vha->hw; int rval = QLA_SUCCESS; void *ptr, *resp_ptr; /* Alloc SRB structure * ref: INIT */ sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); if (!sp) { ql_log(ql_log_info, vha, 0x70e6, "SRB allocation failed\n"); fcport->flags &= ~FCF_ASYNC_ACTIVE; return -ENOMEM; } fcport->flags |= FCF_ASYNC_SENT; qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND); elsio = &sp->u.iocb_cmd; ql_dbg(ql_dbg_io, vha, 0x3073, "%s Enter: PLOGI portid=%06x\n", __func__, fcport->d_id.b24); if (wait) sp->flags = SRB_WAKEUP_ON_COMP; sp->type = SRB_ELS_DCMD; sp->name = "ELS_DCMD"; sp->fcport = fcport; qla2x00_init_async_sp(sp, ELS_DCMD_TIMEOUT + 2, qla2x00_els_dcmd2_sp_done); sp->u.iocb_cmd.timeout = qla2x00_els_dcmd2_iocb_timeout; elsio->u.els_plogi.tx_size = elsio->u.els_plogi.rx_size = DMA_POOL_SIZE; ptr = elsio->u.els_plogi.els_plogi_pyld = dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.tx_size, &elsio->u.els_plogi.els_plogi_pyld_dma, GFP_KERNEL); if (!elsio->u.els_plogi.els_plogi_pyld) { rval = QLA_FUNCTION_FAILED; goto out; } resp_ptr = elsio->u.els_plogi.els_resp_pyld = dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.rx_size, &elsio->u.els_plogi.els_resp_pyld_dma, GFP_KERNEL); if (!elsio->u.els_plogi.els_resp_pyld) { rval = QLA_FUNCTION_FAILED; goto out; } ql_dbg(ql_dbg_io, vha, 0x3073, "PLOGI %p %p\n", ptr, resp_ptr); memset(ptr, 0, sizeof(struct els_plogi_payload)); memset(resp_ptr, 0, sizeof(struct els_plogi_payload)); memcpy(elsio->u.els_plogi.els_plogi_pyld->data, (void *)&ha->plogi_els_payld + offsetof(struct fc_els_flogi, fl_csp), sizeof(ha->plogi_els_payld) - offsetof(struct fc_els_flogi, fl_csp)); elsio->u.els_plogi.els_cmd = els_opcode; elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode; if (els_opcode == ELS_DCMD_PLOGI && DBELL_ACTIVE(vha)) { struct fc_els_flogi *p = ptr; p->fl_csp.sp_features |= cpu_to_be16(FC_SP_FT_SEC); } ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3073, "PLOGI buffer:\n"); ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x0109, (uint8_t *)elsio->u.els_plogi.els_plogi_pyld, sizeof(*elsio->u.els_plogi.els_plogi_pyld)); init_completion(&elsio->u.els_plogi.comp); rval = qla2x00_start_sp(sp); if (rval != QLA_SUCCESS) { rval = QLA_FUNCTION_FAILED; } else { ql_dbg(ql_dbg_disc, vha, 0x3074, "%s PLOGI sent, hdl=%x, loopid=%x, to port_id %06x from port_id %06x\n", sp->name, sp->handle, fcport->loop_id, fcport->d_id.b24, vha->d_id.b24); } if (wait) { wait_for_completion(&elsio->u.els_plogi.comp); if (elsio->u.els_plogi.comp_status != CS_COMPLETE) rval = QLA_FUNCTION_FAILED; } else { goto done; } out: fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE); qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi); /* ref: INIT */ kref_put(&sp->cmd_kref, qla2x00_sp_release); done: return rval; } /* it is assume qpair lock is held */ void qla_els_pt_iocb(struct scsi_qla_host *vha, struct els_entry_24xx *els_iocb, struct qla_els_pt_arg *a) { els_iocb->entry_type = ELS_IOCB_TYPE; els_iocb->entry_count = 1; els_iocb->sys_define = 0; els_iocb->entry_status = 0; els_iocb->handle = QLA_SKIP_HANDLE; els_iocb->nport_handle = a->nport_handle; els_iocb->rx_xchg_address = a->rx_xchg_address; els_iocb->tx_dsd_count = cpu_to_le16(1); els_iocb->vp_index = a->vp_idx; els_iocb->sof_type = EST_SOFI3; els_iocb->rx_dsd_count = cpu_to_le16(0); els_iocb->opcode = a->els_opcode; els_iocb->d_id[0] = a->did.b.al_pa; els_iocb->d_id[1] = a->did.b.area; els_iocb->d_id[2] = a->did.b.domain; /* For SID the byte order is different than DID */ els_iocb->s_id[1] = vha->d_id.b.al_pa; els_iocb->s_id[2] = vha->d_id.b.area; els_iocb->s_id[0] = vha->d_id.b.domain; els_iocb->control_flags = cpu_to_le16(a->control_flags); els_iocb->tx_byte_count = cpu_to_le32(a->tx_byte_count); els_iocb->tx_len = cpu_to_le32(a->tx_len); put_unaligned_le64(a->tx_addr, &els_iocb->tx_address); els_iocb->rx_byte_count = cpu_to_le32(a->rx_byte_count); els_iocb->rx_len = cpu_to_le32(a->rx_len); put_unaligned_le64(a->rx_addr, &els_iocb->rx_address); } static void qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) { struct bsg_job *bsg_job = sp->u.bsg_job; struct fc_bsg_request *bsg_request = bsg_job->request; els_iocb->entry_type = ELS_IOCB_TYPE; els_iocb->entry_count = 1; els_iocb->sys_define = 0; els_iocb->entry_status = 0; els_iocb->handle = sp->handle; els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); els_iocb->tx_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); els_iocb->vp_index = sp->vha->vp_idx; els_iocb->sof_type = EST_SOFI3; els_iocb->rx_dsd_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); els_iocb->opcode = sp->type == SRB_ELS_CMD_RPT ? bsg_request->rqst_data.r_els.els_code : bsg_request->rqst_data.h_els.command_code; els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa; els_iocb->d_id[1] = sp->fcport->d_id.b.area; els_iocb->d_id[2] = sp->fcport->d_id.b.domain; els_iocb->control_flags = 0; els_iocb->rx_byte_count = cpu_to_le32(bsg_job->reply_payload.payload_len); els_iocb->tx_byte_count = cpu_to_le32(bsg_job->request_payload.payload_len); put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list), &els_iocb->tx_address); els_iocb->tx_len = cpu_to_le32(sg_dma_len (bsg_job->request_payload.sg_list)); put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list), &els_iocb->rx_address); els_iocb->rx_len = cpu_to_le32(sg_dma_len (bsg_job->reply_payload.sg_list)); sp->vha->qla_stats.control_requests++; } static void qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) { uint16_t avail_dsds; struct dsd64 *cur_dsd; struct scatterlist *sg; int index; uint16_t tot_dsds; scsi_qla_host_t *vha = sp->vha; struct qla_hw_data *ha = vha->hw; struct bsg_job *bsg_job = sp->u.bsg_job; int entry_count = 1; memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); ct_iocb->entry_type = CT_IOCB_TYPE; ct_iocb->entry_status = 0; ct_iocb->handle1 = sp->handle; SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); ct_iocb->status = cpu_to_le16(0); ct_iocb->control_flags = cpu_to_le16(0); ct_iocb->timeout = 0; ct_iocb->cmd_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); ct_iocb->total_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); ct_iocb->req_bytecount = cpu_to_le32(bsg_job->request_payload.payload_len); ct_iocb->rsp_bytecount = cpu_to_le32(bsg_job->reply_payload.payload_len); put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list), &ct_iocb->req_dsd.address); ct_iocb->req_dsd.length = ct_iocb->req_bytecount; put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list), &ct_iocb->rsp_dsd.address); ct_iocb->rsp_dsd.length = ct_iocb->rsp_bytecount; avail_dsds = 1; cur_dsd = &ct_iocb->rsp_dsd; index = 0; tot_dsds = bsg_job->reply_payload.sg_cnt; for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { cont_a64_entry_t *cont_pkt; /* Allocate additional continuation packets? */ if (avail_dsds == 0) { /* * Five DSDs are available in the Cont. * Type 1 IOCB. */ cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->hw->req_q_map[0]); cur_dsd = cont_pkt->dsd; avail_dsds = 5; entry_count++; } append_dsd64(&cur_dsd, sg); avail_dsds--; } ct_iocb->entry_count = entry_count; sp->vha->qla_stats.control_requests++; } static void qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) { uint16_t avail_dsds; struct dsd64 *cur_dsd; struct scatterlist *sg; int index; uint16_t cmd_dsds, rsp_dsds; scsi_qla_host_t *vha = sp->vha; struct qla_hw_data *ha = vha->hw; struct bsg_job *bsg_job = sp->u.bsg_job; int entry_count = 1; cont_a64_entry_t *cont_pkt = NULL; ct_iocb->entry_type = CT_IOCB_TYPE; ct_iocb->entry_status = 0; ct_iocb->sys_define = 0; ct_iocb->handle = sp->handle; ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); ct_iocb->vp_index = sp->vha->vp_idx; ct_iocb->comp_status = cpu_to_le16(0); cmd_dsds = bsg_job->request_payload.sg_cnt; rsp_dsds = bsg_job->reply_payload.sg_cnt; ct_iocb->cmd_dsd_count = cpu_to_le16(cmd_dsds); ct_iocb->timeout = 0; ct_iocb->rsp_dsd_count = cpu_to_le16(rsp_dsds); ct_iocb->cmd_byte_count = cpu_to_le32(bsg_job->request_payload.payload_len); avail_dsds = 2; cur_dsd = ct_iocb->dsd; index = 0; for_each_sg(bsg_job->request_payload.sg_list, sg, cmd_dsds, index) { /* Allocate additional continuation packets? */ if (avail_dsds == 0) { /* * Five DSDs are available in the Cont. * Type 1 IOCB. */ cont_pkt = qla2x00_prep_cont_type1_iocb( vha, ha->req_q_map[0]); cur_dsd = cont_pkt->dsd; avail_dsds = 5; entry_count++; } append_dsd64(&cur_dsd, sg); avail_dsds--; } index = 0; for_each_sg(bsg_job->reply_payload.sg_list, sg, rsp_dsds, index) { /* Allocate additional continuation packets? */ if (avail_dsds == 0) { /* * Five DSDs are available in the Cont. * Type 1 IOCB. */ cont_pkt = qla2x00_prep_cont_type1_iocb(vha, ha->req_q_map[0]); cur_dsd = cont_pkt->dsd; avail_dsds = 5; entry_count++; } append_dsd64(&cur_dsd, sg); avail_dsds--; } ct_iocb->entry_count = entry_count; } /* * qla82xx_start_scsi() - Send a SCSI command to the ISP * @sp: command to send to the ISP * * Returns non-zero if a failure occurred, else zero. */ int qla82xx_start_scsi(srb_t *sp) { int nseg; unsigned long flags; struct scsi_cmnd *cmd; uint32_t *clr_ptr; uint32_t handle; uint16_t cnt; uint16_t req_cnt; uint16_t tot_dsds; struct device_reg_82xx __iomem *reg; uint32_t dbval; __be32 *fcp_dl; uint8_t additional_cdb_len; struct ct6_dsd *ctx; struct scsi_qla_host *vha = sp->vha; struct qla_hw_data *ha = vha->hw; struct req_que *req = NULL; struct rsp_que *rsp = NULL; struct qla_qpair *qpair = sp->qpair; /* Setup device pointers. */ reg = &ha->iobase->isp82; cmd = GET_CMD_SP(sp); req = vha->req; rsp = ha->rsp_q_map[0]; /* So we know we haven't pci_map'ed anything yet */ tot_dsds = 0; dbval = 0x04 | (ha->portnum << 5); /* Send marker if required */ if (vha->marker_needed != 0) { if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { ql_log(ql_log_warn, vha, 0x300c, "qla2x00_marker failed for cmd=%p.\n", cmd); return QLA_FUNCTION_FAILED; } vha->marker_needed = 0; } /* Acquire ring specific lock */ spin_lock_irqsave(&ha->hardware_lock, flags); handle = qla2xxx_get_next_handle(req); if (handle == 0) goto queuing_error; /* Map the sg table so we have an accurate count of sg entries needed */ if (scsi_sg_count(cmd)) { nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), scsi_sg_count(cmd), cmd->sc_data_direction); if (unlikely(!nseg)) goto queuing_error; } else nseg = 0; tot_dsds = nseg; if (tot_dsds > ql2xshiftctondsd) { struct cmd_type_6 *cmd_pkt; uint16_t more_dsd_lists = 0; struct dsd_dma *dsd_ptr; uint16_t i; more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds); if ((more_dsd_lists + qpair->dsd_inuse) >= NUM_DSD_CHAIN) { ql_dbg(ql_dbg_io, vha, 0x300d, "Num of DSD list %d is than %d for cmd=%p.\n", more_dsd_lists + qpair->dsd_inuse, NUM_DSD_CHAIN, cmd); goto queuing_error; } if (more_dsd_lists <= qpair->dsd_avail) goto sufficient_dsds; else more_dsd_lists -= qpair->dsd_avail; for (i = 0; i < more_dsd_lists; i++) { dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); if (!dsd_ptr) { ql_log(ql_log_fatal, vha, 0x300e, "Failed to allocate memory for dsd_dma " "for cmd=%p.\n", cmd); goto queuing_error; } dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, &dsd_ptr->dsd_list_dma); if (!dsd_ptr->dsd_addr) { kfree(dsd_ptr); ql_log(ql_log_fatal, vha, 0x300f, "Failed to allocate memory for dsd_addr " "for cmd=%p.\n", cmd); goto queuing_error; } list_add_tail(&dsd_ptr->list, &qpair->dsd_list); qpair->dsd_avail++; } sufficient_dsds: req_cnt = 1; if (req->cnt < (req_cnt + 2)) { cnt = (uint16_t)rd_reg_dword_relaxed( ®->req_q_out[0]); if (req->ring_index < cnt) req->cnt = cnt - req->ring_index; else req->cnt = req->length - (req->ring_index - cnt); if (req->cnt < (req_cnt + 2)) goto queuing_error; } ctx = &sp->u.scmd.ct6_ctx; memset(ctx, 0, sizeof(struct ct6_dsd)); ctx->fcp_cmnd = dma_pool_zalloc(ha->fcp_cmnd_dma_pool, GFP_ATOMIC, &ctx->fcp_cmnd_dma); if (!ctx->fcp_cmnd) { ql_log(ql_log_fatal, vha, 0x3011, "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd); goto queuing_error; } /* Initialize the DSD list and dma handle */ INIT_LIST_HEAD(&ctx->dsd_list); ctx->dsd_use_cnt = 0; if (cmd->cmd_len > 16) { additional_cdb_len = cmd->cmd_len - 16; if ((cmd->cmd_len % 4) != 0) { /* SCSI command bigger than 16 bytes must be * multiple of 4 */ ql_log(ql_log_warn, vha, 0x3012, "scsi cmd len %d not multiple of 4 " "for cmd=%p.\n", cmd->cmd_len, cmd); goto queuing_error_fcp_cmnd; } ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; } else { additional_cdb_len = 0; ctx->fcp_cmnd_len = 12 + 16 + 4; } cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; cmd_pkt->handle = make_handle(req->id, handle); /* Zero out remaining portion of packet. */ /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ clr_ptr = (uint32_t *)cmd_pkt + 2; memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); /* Set NPORT-ID and LUN number*/ cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; cmd_pkt->vp_index = sp->vha->vp_idx; /* Build IOCB segments */ if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds)) goto queuing_error_fcp_cmnd; int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); /* build FCP_CMND IU */ int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun); ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; if (cmd->sc_data_direction == DMA_TO_DEVICE) ctx->fcp_cmnd->additional_cdb_len |= 1; else if (cmd->sc_data_direction == DMA_FROM_DEVICE) ctx->fcp_cmnd->additional_cdb_len |= 2; /* Populate the FCP_PRIO. */ if (ha->flags.fcp_prio_enabled) ctx->fcp_cmnd->task_attribute |= sp->fcport->fcp_prio << 3; memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); fcp_dl = (__be32 *)(ctx->fcp_cmnd->cdb + 16 + additional_cdb_len); *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); put_unaligned_le64(ctx->fcp_cmnd_dma, &cmd_pkt->fcp_cmnd_dseg_address); sp->flags |= SRB_FCP_CMND_DMA_VALID; cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); /* Set total data segment count. */ cmd_pkt->entry_count = (uint8_t)req_cnt; /* Specify response queue number where * completion should happen */ cmd_pkt->entry_status = (uint8_t) rsp->id; } else { struct cmd_type_7 *cmd_pkt; req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); if (req->cnt < (req_cnt + 2)) { cnt = (uint16_t)rd_reg_dword_relaxed( ®->req_q_out[0]); if (req->ring_index < cnt) req->cnt = cnt - req->ring_index; else req->cnt = req->length - (req->ring_index - cnt); } if (req->cnt < (req_cnt + 2)) goto queuing_error; cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; cmd_pkt->handle = make_handle(req->id, handle); /* Zero out remaining portion of packet. */ /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ clr_ptr = (uint32_t *)cmd_pkt + 2; memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); /* Set NPORT-ID and LUN number*/ cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; cmd_pkt->vp_index = sp->vha->vp_idx; int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); /* Populate the FCP_PRIO. */ if (ha->flags.fcp_prio_enabled) cmd_pkt->task |= sp->fcport->fcp_prio << 3; /* Load SCSI command packet. */ memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); /* Build IOCB segments */ qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); /* Set total data segment count. */ cmd_pkt->entry_count = (uint8_t)req_cnt; /* Specify response queue number where * completion should happen. */ cmd_pkt->entry_status = (uint8_t) rsp->id; } /* Build command packet. */ req->current_outstanding_cmd = handle; req->outstanding_cmds[handle] = sp; sp->handle = handle; cmd->host_scribble = (unsigned char *)(unsigned long)handle; req->cnt -= req_cnt; wmb(); /* Adjust ring index. */ req->ring_index++; if (req->ring_index == req->length) { req->ring_index = 0; req->ring_ptr = req->ring; } else req->ring_ptr++; sp->flags |= SRB_DMA_VALID; /* Set chip new ring index. */ /* write, read and verify logic */ dbval = dbval | (req->id << 8) | (req->ring_index << 16); if (ql2xdbwr) qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr, dbval); else { wrt_reg_dword(ha->nxdb_wr_ptr, dbval); wmb(); while (rd_reg_dword(ha->nxdb_rd_ptr) != dbval) { wrt_reg_dword(ha->nxdb_wr_ptr, dbval); wmb(); } } /* Manage unprocessed RIO/ZIO commands in response queue. */ if (vha->flags.process_response_queue && rsp->ring_ptr->signature != RESPONSE_PROCESSED) qla24xx_process_response_queue(vha, rsp); spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_SUCCESS; queuing_error_fcp_cmnd: dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); queuing_error: if (tot_dsds) scsi_dma_unmap(cmd); if (sp->u.scmd.crc_ctx) { mempool_free(sp->u.scmd.crc_ctx, ha->ctx_mempool); sp->u.scmd.crc_ctx = NULL; } spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_FUNCTION_FAILED; } static void qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb) { struct srb_iocb *aio = &sp->u.iocb_cmd; scsi_qla_host_t *vha = sp->vha; struct req_que *req = sp->qpair->req; srb_t *orig_sp = sp->cmd_sp; memset(abt_iocb, 0, sizeof(struct abort_entry_24xx)); abt_iocb->entry_type = ABORT_IOCB_TYPE; abt_iocb->entry_count = 1; abt_iocb->handle = make_handle(req->id, sp->handle); if (sp->fcport) { abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; abt_iocb->port_id[1] = sp->fcport->d_id.b.area; abt_iocb->port_id[2] = sp->fcport->d_id.b.domain; } abt_iocb->handle_to_abort = make_handle(le16_to_cpu(aio->u.abt.req_que_no), aio->u.abt.cmd_hndl); abt_iocb->vp_index = vha->vp_idx; abt_iocb->req_que_no = aio->u.abt.req_que_no; /* need to pass original sp */ if (orig_sp) qla_nvme_abort_set_option(abt_iocb, orig_sp); /* Send the command to the firmware */ wmb(); } static void qla2x00_mb_iocb(srb_t *sp, struct mbx_24xx_entry *mbx) { int i, sz; mbx->entry_type = MBX_IOCB_TYPE; mbx->handle = sp->handle; sz = min(ARRAY_SIZE(mbx->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.out_mb)); for (i = 0; i < sz; i++) mbx->mb[i] = sp->u.iocb_cmd.u.mbx.out_mb[i]; } static void qla2x00_ctpthru_cmd_iocb(srb_t *sp, struct ct_entry_24xx *ct_pkt) { sp->u.iocb_cmd.u.ctarg.iocb = ct_pkt; qla24xx_prep_ms_iocb(sp->vha, &sp->u.iocb_cmd.u.ctarg); ct_pkt->handle = sp->handle; } static void qla2x00_send_notify_ack_iocb(srb_t *sp, struct nack_to_isp *nack) { struct imm_ntfy_from_isp *ntfy = sp->u.iocb_cmd.u.nack.ntfy; nack->entry_type = NOTIFY_ACK_TYPE; nack->entry_count = 1; nack->ox_id = ntfy->ox_id; nack->u.isp24.handle = sp->handle; nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { nack->u.isp24.flags = ntfy->u.isp24.flags & cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB); } nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; nack->u.isp24.status = ntfy->u.isp24.status; nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; nack->u.isp24.srr_flags = 0; nack->u.isp24.srr_reject_code = 0; nack->u.isp24.srr_reject_code_expl = 0; nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; if (ntfy->u.isp24.status_subcode == ELS_PLOGI && (le16_to_cpu(ntfy->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP) && sp->vha->hw->flags.edif_enabled) { ql_dbg(ql_dbg_disc, sp->vha, 0x3074, "%s PLOGI NACK sent with FC SECURITY bit, hdl=%x, loopid=%x, to pid %06x\n", sp->name, sp->handle, sp->fcport->loop_id, sp->fcport->d_id.b24); nack->u.isp24.flags |= cpu_to_le16(NOTIFY_ACK_FLAGS_FCSP); } } /* * Build NVME LS request */ static void qla_nvme_ls(srb_t *sp, struct pt_ls4_request *cmd_pkt) { struct srb_iocb *nvme; nvme = &sp->u.iocb_cmd; cmd_pkt->entry_type = PT_LS4_REQUEST; cmd_pkt->entry_count = 1; cmd_pkt->timeout = cpu_to_le16(nvme->u.nvme.timeout_sec); cmd_pkt->vp_index = sp->fcport->vha->vp_idx; if (sp->unsol_rsp) { cmd_pkt->control_flags = cpu_to_le16(CF_LS4_RESPONDER << CF_LS4_SHIFT); cmd_pkt->nport_handle = nvme->u.nvme.nport_handle; cmd_pkt->exchange_address = nvme->u.nvme.exchange_address; } else { cmd_pkt->control_flags = cpu_to_le16(CF_LS4_ORIGINATOR << CF_LS4_SHIFT); cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); cmd_pkt->rx_dseg_count = cpu_to_le16(1); cmd_pkt->rx_byte_count = nvme->u.nvme.rsp_len; cmd_pkt->dsd[1].length = nvme->u.nvme.rsp_len; put_unaligned_le64(nvme->u.nvme.rsp_dma, &cmd_pkt->dsd[1].address); } cmd_pkt->tx_dseg_count = cpu_to_le16(1); cmd_pkt->tx_byte_count = nvme->u.nvme.cmd_len; cmd_pkt->dsd[0].length = nvme->u.nvme.cmd_len; put_unaligned_le64(nvme->u.nvme.cmd_dma, &cmd_pkt->dsd[0].address); } static void qla25xx_ctrlvp_iocb(srb_t *sp, struct vp_ctrl_entry_24xx *vce) { int map, pos; vce->entry_type = VP_CTRL_IOCB_TYPE; vce->handle = sp->handle; vce->entry_count = 1; vce->command = cpu_to_le16(sp->u.iocb_cmd.u.ctrlvp.cmd); vce->vp_count = cpu_to_le16(1); /* * index map in firmware starts with 1; decrement index * this is ok as we never use index 0 */ map = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) / 8; pos = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) & 7; vce->vp_idx_map[map] |= 1 << pos; } static void qla24xx_prlo_iocb(srb_t *sp, struct logio_entry_24xx *logio) { logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLO|LCF_IMPL_PRLO); logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); logio->port_id[0] = sp->fcport->d_id.b.al_pa; logio->port_id[1] = sp->fcport->d_id.b.area; logio->port_id[2] = sp->fcport->d_id.b.domain; logio->vp_index = sp->fcport->vha->vp_idx; } static int qla_get_iocbs_resource(struct srb *sp) { bool get_exch; bool push_it_through = false; if (!ql2xenforce_iocb_limit) { sp->iores.res_type = RESOURCE_NONE; return 0; } sp->iores.res_type = RESOURCE_NONE; switch (sp->type) { case SRB_TM_CMD: case SRB_PRLI_CMD: case SRB_ADISC_CMD: push_it_through = true; fallthrough; case SRB_LOGIN_CMD: case SRB_ELS_CMD_RPT: case SRB_ELS_CMD_HST: case SRB_ELS_CMD_HST_NOLOGIN: case SRB_CT_CMD: case SRB_NVME_LS: case SRB_ELS_DCMD: get_exch = true; break; case SRB_FXIOCB_DCMD: case SRB_FXIOCB_BCMD: sp->iores.res_type = RESOURCE_NONE; return 0; case SRB_SA_UPDATE: case SRB_SA_REPLACE: case SRB_MB_IOCB: case SRB_ABT_CMD: case SRB_NACK_PLOGI: case SRB_NACK_PRLI: case SRB_NACK_LOGO: case SRB_LOGOUT_CMD: case SRB_CTRL_VP: case SRB_MARKER: default: push_it_through = true; get_exch = false; } sp->iores.res_type |= RESOURCE_IOCB; sp->iores.iocb_cnt = 1; if (get_exch) { sp->iores.res_type |= RESOURCE_EXCH; sp->iores.exch_cnt = 1; } if (push_it_through) sp->iores.res_type |= RESOURCE_FORCE; return qla_get_fw_resources(sp->qpair, &sp->iores); } static void qla_marker_iocb(srb_t *sp, struct mrk_entry_24xx *mrk) { mrk->entry_type = MARKER_TYPE; mrk->modifier = sp->u.iocb_cmd.u.tmf.modifier; mrk->handle = make_handle(sp->qpair->req->id, sp->handle); if (sp->u.iocb_cmd.u.tmf.modifier != MK_SYNC_ALL) { mrk->nport_handle = cpu_to_le16(sp->u.iocb_cmd.u.tmf.loop_id); int_to_scsilun(sp->u.iocb_cmd.u.tmf.lun, (struct scsi_lun *)&mrk->lun); host_to_fcp_swap(mrk->lun, sizeof(mrk->lun)); mrk->vp_index = sp->u.iocb_cmd.u.tmf.vp_index; } } int qla2x00_start_sp(srb_t *sp) { int rval = QLA_SUCCESS; scsi_qla_host_t *vha = sp->vha; struct qla_hw_data *ha = vha->hw; struct qla_qpair *qp = sp->qpair; void *pkt; unsigned long flags; if (vha->hw->flags.eeh_busy) return -EIO; spin_lock_irqsave(qp->qp_lock_ptr, flags); rval = qla_get_iocbs_resource(sp); if (rval) { spin_unlock_irqrestore(qp->qp_lock_ptr, flags); return -EAGAIN; } pkt = __qla2x00_alloc_iocbs(sp->qpair, sp); if (!pkt) { rval = -EAGAIN; ql_log(ql_log_warn, vha, 0x700c, "qla2x00_alloc_iocbs failed.\n"); goto done; } switch (sp->type) { case SRB_LOGIN_CMD: IS_FWI2_CAPABLE(ha) ? qla24xx_login_iocb(sp, pkt) : qla2x00_login_iocb(sp, pkt); break; case SRB_PRLI_CMD: qla24xx_prli_iocb(sp, pkt); break; case SRB_LOGOUT_CMD: IS_FWI2_CAPABLE(ha) ? qla24xx_logout_iocb(sp, pkt) : qla2x00_logout_iocb(sp, pkt); break; case SRB_ELS_CMD_RPT: case SRB_ELS_CMD_HST: qla24xx_els_iocb(sp, pkt); break; case SRB_ELS_CMD_HST_NOLOGIN: qla_els_pt_iocb(sp->vha, pkt, &sp->u.bsg_cmd.u.els_arg); ((struct els_entry_24xx *)pkt)->handle = sp->handle; break; case SRB_CT_CMD: IS_FWI2_CAPABLE(ha) ? qla24xx_ct_iocb(sp, pkt) : qla2x00_ct_iocb(sp, pkt); break; case SRB_ADISC_CMD: IS_FWI2_CAPABLE(ha) ? qla24xx_adisc_iocb(sp, pkt) : qla2x00_adisc_iocb(sp, pkt); break; case SRB_TM_CMD: IS_QLAFX00(ha) ? qlafx00_tm_iocb(sp, pkt) : qla24xx_tm_iocb(sp, pkt); break; case SRB_FXIOCB_DCMD: case SRB_FXIOCB_BCMD: qlafx00_fxdisc_iocb(sp, pkt); break; case SRB_NVME_LS: qla_nvme_ls(sp, pkt); break; case SRB_ABT_CMD: IS_QLAFX00(ha) ? qlafx00_abort_iocb(sp, pkt) : qla24xx_abort_iocb(sp, pkt); break; case SRB_ELS_DCMD: qla24xx_els_logo_iocb(sp, pkt); break; case SRB_CT_PTHRU_CMD: qla2x00_ctpthru_cmd_iocb(sp, pkt); break; case SRB_MB_IOCB: qla2x00_mb_iocb(sp, pkt); break; case SRB_NACK_PLOGI: case SRB_NACK_PRLI: case SRB_NACK_LOGO: qla2x00_send_notify_ack_iocb(sp, pkt); break; case SRB_CTRL_VP: qla25xx_ctrlvp_iocb(sp, pkt); break; case SRB_PRLO_CMD: qla24xx_prlo_iocb(sp, pkt); break; case SRB_SA_UPDATE: qla24xx_sa_update_iocb(sp, pkt); break; case SRB_SA_REPLACE: qla24xx_sa_replace_iocb(sp, pkt); break; case SRB_MARKER: qla_marker_iocb(sp, pkt); break; default: break; } if (sp->start_timer) { /* ref: TMR timer ref * this code should be just before start_iocbs function * This will make sure that caller function don't to do * kref_put even on failure */ kref_get(&sp->cmd_kref); add_timer(&sp->u.iocb_cmd.timer); } wmb(); qla2x00_start_iocbs(vha, qp->req); done: if (rval) qla_put_fw_resources(sp->qpair, &sp->iores); spin_unlock_irqrestore(qp->qp_lock_ptr, flags); return rval; } static void qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha, struct cmd_bidir *cmd_pkt, uint32_t tot_dsds) { uint16_t avail_dsds; struct dsd64 *cur_dsd; uint32_t req_data_len = 0; uint32_t rsp_data_len = 0; struct scatterlist *sg; int index; int entry_count = 1; struct bsg_job *bsg_job = sp->u.bsg_job; /*Update entry type to indicate bidir command */ put_unaligned_le32(COMMAND_BIDIRECTIONAL, &cmd_pkt->entry_type); /* Set the transfer direction, in this set both flags * Also set the BD_WRAP_BACK flag, firmware will take care * assigning DID=SID for outgoing pkts. */ cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); cmd_pkt->control_flags = cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA | BD_WRAP_BACK); req_data_len = rsp_data_len = bsg_job->request_payload.payload_len; cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len); cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len); cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2); vha->bidi_stats.transfer_bytes += req_data_len; vha->bidi_stats.io_count++; vha->qla_stats.output_bytes += req_data_len; vha->qla_stats.output_requests++; /* Only one dsd is available for bidirectional IOCB, remaining dsds * are bundled in continuation iocb */ avail_dsds = 1; cur_dsd = &cmd_pkt->fcp_dsd; index = 0; for_each_sg(bsg_job->request_payload.sg_list, sg, bsg_job->request_payload.sg_cnt, index) { cont_a64_entry_t *cont_pkt; /* Allocate additional continuation packets */ if (avail_dsds == 0) { /* Continuation type 1 IOCB can accomodate * 5 DSDS */ cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); cur_dsd = cont_pkt->dsd; avail_dsds = 5; entry_count++; } append_dsd64(&cur_dsd, sg); avail_dsds--; } /* For read request DSD will always goes to continuation IOCB * and follow the write DSD. If there is room on the current IOCB * then it is added to that IOCB else new continuation IOCB is * allocated. */ for_each_sg(bsg_job->reply_payload.sg_list, sg, bsg_job->reply_payload.sg_cnt, index) { cont_a64_entry_t *cont_pkt; /* Allocate additional continuation packets */ if (avail_dsds == 0) { /* Continuation type 1 IOCB can accomodate * 5 DSDS */ cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); cur_dsd = cont_pkt->dsd; avail_dsds = 5; entry_count++; } append_dsd64(&cur_dsd, sg); avail_dsds--; } /* This value should be same as number of IOCB required for this cmd */ cmd_pkt->entry_count = entry_count; } int qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds) { struct qla_hw_data *ha = vha->hw; unsigned long flags; uint32_t handle; uint16_t req_cnt; uint16_t cnt; uint32_t *clr_ptr; struct cmd_bidir *cmd_pkt = NULL; struct rsp_que *rsp; struct req_que *req; int rval = EXT_STATUS_OK; rval = QLA_SUCCESS; rsp = ha->rsp_q_map[0]; req = vha->req; /* Send marker if required */ if (vha->marker_needed != 0) { if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) return EXT_STATUS_MAILBOX; vha->marker_needed = 0; } /* Acquire ring specific lock */ spin_lock_irqsave(&ha->hardware_lock, flags); handle = qla2xxx_get_next_handle(req); if (handle == 0) { rval = EXT_STATUS_BUSY; goto queuing_error; } /* Calculate number of IOCB required */ req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); /* Check for room on request queue. */ if (req->cnt < req_cnt + 2) { if (IS_SHADOW_REG_CAPABLE(ha)) { cnt = *req->out_ptr; } else { cnt = rd_reg_dword_relaxed(req->req_q_out); if (qla2x00_check_reg16_for_disconnect(vha, cnt)) goto queuing_error; } if (req->ring_index < cnt) req->cnt = cnt - req->ring_index; else req->cnt = req->length - (req->ring_index - cnt); } if (req->cnt < req_cnt + 2) { rval = EXT_STATUS_BUSY; goto queuing_error; } cmd_pkt = (struct cmd_bidir *)req->ring_ptr; cmd_pkt->handle = make_handle(req->id, handle); /* Zero out remaining portion of packet. */ /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ clr_ptr = (uint32_t *)cmd_pkt + 2; memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); /* Set NPORT-ID (of vha)*/ cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id); cmd_pkt->port_id[0] = vha->d_id.b.al_pa; cmd_pkt->port_id[1] = vha->d_id.b.area; cmd_pkt->port_id[2] = vha->d_id.b.domain; qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds); cmd_pkt->entry_status = (uint8_t) rsp->id; /* Build command packet. */ req->current_outstanding_cmd = handle; req->outstanding_cmds[handle] = sp; sp->handle = handle; req->cnt -= req_cnt; /* Send the command to the firmware */ wmb(); qla2x00_start_iocbs(vha, req); queuing_error: spin_unlock_irqrestore(&ha->hardware_lock, flags); return rval; } /** * qla_start_scsi_type6() - Send a SCSI command to the ISP * @sp: command to send to the ISP * * Returns non-zero if a failure occurred, else zero. */ static int qla_start_scsi_type6(srb_t *sp) { int nseg; unsigned long flags; uint32_t *clr_ptr; uint32_t handle; struct cmd_type_6 *cmd_pkt; uint16_t cnt; uint16_t req_cnt; uint16_t tot_dsds; struct req_que *req = NULL; struct rsp_que *rsp; struct scsi_cmnd *cmd = GET_CMD_SP(sp); struct scsi_qla_host *vha = sp->fcport->vha; struct qla_hw_data *ha = vha->hw; struct qla_qpair *qpair = sp->qpair; uint16_t more_dsd_lists = 0; struct dsd_dma *dsd_ptr; uint16_t i; __be32 *fcp_dl; uint8_t additional_cdb_len; struct ct6_dsd *ctx; /* Acquire qpair specific lock */ spin_lock_irqsave(&qpair->qp_lock, flags); /* Setup qpair pointers */ req = qpair->req; rsp = qpair->rsp; /* So we know we haven't pci_map'ed anything yet */ tot_dsds = 0; /* Send marker if required */ if (vha->marker_needed != 0) { if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { spin_unlock_irqrestore(&qpair->qp_lock, flags); return QLA_FUNCTION_FAILED; } vha->marker_needed = 0; } handle = qla2xxx_get_next_handle(req); if (handle == 0) goto queuing_error; /* Map the sg table so we have an accurate count of sg entries needed */ if (scsi_sg_count(cmd)) { nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), scsi_sg_count(cmd), cmd->sc_data_direction); if (unlikely(!nseg)) goto queuing_error; } else { nseg = 0; } tot_dsds = nseg; /* eventhough driver only need 1 T6 IOCB, FW still convert DSD to Continueation IOCB */ req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH; sp->iores.exch_cnt = 1; sp->iores.iocb_cnt = req_cnt; if (qla_get_fw_resources(sp->qpair, &sp->iores)) goto queuing_error; more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds); if ((more_dsd_lists + qpair->dsd_inuse) >= NUM_DSD_CHAIN) { ql_dbg(ql_dbg_io, vha, 0x3028, "Num of DSD list %d is than %d for cmd=%p.\n", more_dsd_lists + qpair->dsd_inuse, NUM_DSD_CHAIN, cmd); goto queuing_error; } if (more_dsd_lists <= qpair->dsd_avail) goto sufficient_dsds; else more_dsd_lists -= qpair->dsd_avail; for (i = 0; i < more_dsd_lists; i++) { dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC); if (!dsd_ptr) { ql_log(ql_log_fatal, vha, 0x3029, "Failed to allocate memory for dsd_dma for cmd=%p.\n", cmd); goto queuing_error; } INIT_LIST_HEAD(&dsd_ptr->list); dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, &dsd_ptr->dsd_list_dma); if (!dsd_ptr->dsd_addr) { kfree(dsd_ptr); ql_log(ql_log_fatal, vha, 0x302a, "Failed to allocate memory for dsd_addr for cmd=%p.\n", cmd); goto queuing_error; } list_add_tail(&dsd_ptr->list, &qpair->dsd_list); qpair->dsd_avail++; } sufficient_dsds: req_cnt = 1; if (req->cnt < (req_cnt + 2)) { if (IS_SHADOW_REG_CAPABLE(ha)) { cnt = *req->out_ptr; } else { cnt = (uint16_t)rd_reg_dword_relaxed(req->req_q_out); if (qla2x00_check_reg16_for_disconnect(vha, cnt)) goto queuing_error; } if (req->ring_index < cnt) req->cnt = cnt - req->ring_index; else req->cnt = req->length - (req->ring_index - cnt); if (req->cnt < (req_cnt + 2)) goto queuing_error; } ctx = &sp->u.scmd.ct6_ctx; memset(ctx, 0, sizeof(struct ct6_dsd)); ctx->fcp_cmnd = dma_pool_zalloc(ha->fcp_cmnd_dma_pool, GFP_ATOMIC, &ctx->fcp_cmnd_dma); if (!ctx->fcp_cmnd) { ql_log(ql_log_fatal, vha, 0x3031, "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd); goto queuing_error; } /* Initialize the DSD list and dma handle */ INIT_LIST_HEAD(&ctx->dsd_list); ctx->dsd_use_cnt = 0; if (cmd->cmd_len > 16) { additional_cdb_len = cmd->cmd_len - 16; if (cmd->cmd_len % 4 || cmd->cmd_len > QLA_CDB_BUF_SIZE) { /* * SCSI command bigger than 16 bytes must be * multiple of 4 or too big. */ ql_log(ql_log_warn, vha, 0x3033, "scsi cmd len %d not multiple of 4 for cmd=%p.\n", cmd->cmd_len, cmd); goto queuing_error_fcp_cmnd; } ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; } else { additional_cdb_len = 0; ctx->fcp_cmnd_len = 12 + 16 + 4; } /* Build command packet. */ req->current_outstanding_cmd = handle; req->outstanding_cmds[handle] = sp; sp->handle = handle; cmd->host_scribble = (unsigned char *)(unsigned long)handle; req->cnt -= req_cnt; cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; cmd_pkt->handle = make_handle(req->id, handle); /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ clr_ptr = (uint32_t *)cmd_pkt + 2; memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); /* Set NPORT-ID and LUN number */ cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; cmd_pkt->vp_index = sp->vha->vp_idx; /* Build IOCB segments */ qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds); int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); /* build FCP_CMND IU */ int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun); ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; if (cmd->sc_data_direction == DMA_TO_DEVICE) ctx->fcp_cmnd->additional_cdb_len |= 1; else if (cmd->sc_data_direction == DMA_FROM_DEVICE) ctx->fcp_cmnd->additional_cdb_len |= 2; /* Populate the FCP_PRIO. */ if (ha->flags.fcp_prio_enabled) ctx->fcp_cmnd->task_attribute |= sp->fcport->fcp_prio << 3; memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); fcp_dl = (__be32 *)(ctx->fcp_cmnd->cdb + 16 + additional_cdb_len); *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); put_unaligned_le64(ctx->fcp_cmnd_dma, &cmd_pkt->fcp_cmnd_dseg_address); sp->flags |= SRB_FCP_CMND_DMA_VALID; cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); /* Set total data segment count. */ cmd_pkt->entry_count = (uint8_t)req_cnt; wmb(); /* Adjust ring index. */ req->ring_index++; if (req->ring_index == req->length) { req->ring_index = 0; req->ring_ptr = req->ring; } else { req->ring_ptr++; } sp->qpair->cmd_cnt++; sp->flags |= SRB_DMA_VALID; /* Set chip new ring index. */ wrt_reg_dword(req->req_q_in, req->ring_index); /* Manage unprocessed RIO/ZIO commands in response queue. */ if (vha->flags.process_response_queue && rsp->ring_ptr->signature != RESPONSE_PROCESSED) qla24xx_process_response_queue(vha, rsp); spin_unlock_irqrestore(&qpair->qp_lock, flags); return QLA_SUCCESS; queuing_error_fcp_cmnd: dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); queuing_error: if (tot_dsds) scsi_dma_unmap(cmd); qla_put_fw_resources(sp->qpair, &sp->iores); if (sp->u.scmd.crc_ctx) { mempool_free(sp->u.scmd.crc_ctx, ha->ctx_mempool); sp->u.scmd.crc_ctx = NULL; } spin_unlock_irqrestore(&qpair->qp_lock, flags); return QLA_FUNCTION_FAILED; }
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