From ab5d129f93c91fff74100bcd898d605da461f4a6 Mon Sep 17 00:00:00 2001 From: Raghava Aditya Renukunta Date: Thu, 2 Feb 2017 15:53:30 -0800 Subject: [PATCH] scsi: aacraid: Add task management functionality Added support to send out task management commands. [mkp: removed // fibsize... ] Signed-off-by: Raghava Aditya Renukunta Signed-off-by: Dave Carroll Reviewed-by: Johannes Thumshirn Signed-off-by: Martin K. Petersen --- drivers/scsi/aacraid/aachba.c | 366 +++++++++++++++++++++++++++++++++- 1 file changed, 362 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 5719ac39c45a..9e9144860fa5 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -217,9 +217,13 @@ static long aac_build_sg64(struct scsi_cmnd *scsicmd, struct sgmap64 *psg); static long aac_build_sgraw(struct scsi_cmnd *scsicmd, struct sgmapraw *psg); static long aac_build_sgraw2(struct scsi_cmnd *scsicmd, struct aac_raw_io2 *rio2, int sg_max); +static long aac_build_sghba(struct scsi_cmnd *scsicmd, + struct aac_hba_cmd_req *hbacmd, + int sg_max, u64 sg_address); static int aac_convert_sgraw2(struct aac_raw_io2 *rio2, int pages, int nseg, int nseg_new); static int aac_send_srb_fib(struct scsi_cmnd* scsicmd); +static int aac_send_hba_fib(struct scsi_cmnd *scsicmd); #ifdef AAC_DETAILED_STATUS_INFO static char *aac_get_status_string(u32 status); #endif @@ -1446,6 +1450,52 @@ static struct aac_srb * aac_scsi_common(struct fib * fib, struct scsi_cmnd * cmd return srbcmd; } +static struct aac_hba_cmd_req *aac_construct_hbacmd(struct fib *fib, + struct scsi_cmnd *cmd) +{ + struct aac_hba_cmd_req *hbacmd; + struct aac_dev *dev; + int bus, target; + u64 address; + + dev = (struct aac_dev *)cmd->device->host->hostdata; + + hbacmd = (struct aac_hba_cmd_req *)fib->hw_fib_va; + memset(hbacmd, 0, 96); /* sizeof(*hbacmd) is not necessary */ + /* iu_type is a parameter of aac_hba_send */ + switch (cmd->sc_data_direction) { + case DMA_TO_DEVICE: + hbacmd->byte1 = 2; + break; + case DMA_FROM_DEVICE: + case DMA_BIDIRECTIONAL: + hbacmd->byte1 = 1; + break; + case DMA_NONE: + default: + break; + } + hbacmd->lun[1] = cpu_to_le32(cmd->device->lun); + + bus = aac_logical_to_phys(scmd_channel(cmd)); + target = scmd_id(cmd); + hbacmd->it_nexus = dev->hba_map[bus][target].rmw_nexus; + + /* we fill in reply_qid later in aac_src_deliver_message */ + /* we fill in iu_type, request_id later in aac_hba_send */ + /* we fill in emb_data_desc_count later in aac_build_sghba */ + + memcpy(hbacmd->cdb, cmd->cmnd, cmd->cmd_len); + hbacmd->data_length = cpu_to_le32(scsi_bufflen(cmd)); + + address = (u64)fib->hw_error_pa; + hbacmd->error_ptr_hi = cpu_to_le32((u32)(address >> 32)); + hbacmd->error_ptr_lo = cpu_to_le32((u32)(address & 0xffffffff)); + hbacmd->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE); + + return hbacmd; +} + static void aac_srb_callback(void *context, struct fib * fibptr); static int aac_scsi_64(struct fib * fib, struct scsi_cmnd * cmd) @@ -1516,6 +1566,30 @@ static int aac_scsi_32_64(struct fib * fib, struct scsi_cmnd * cmd) return aac_scsi_32(fib, cmd); } +static int aac_adapter_hba(struct fib *fib, struct scsi_cmnd *cmd) +{ + struct aac_hba_cmd_req *hbacmd = aac_construct_hbacmd(fib, cmd); + struct aac_dev *dev; + long ret; + + dev = (struct aac_dev *)cmd->device->host->hostdata; + + ret = aac_build_sghba(cmd, hbacmd, + dev->scsi_host_ptr->sg_tablesize, (u64)fib->hw_sgl_pa); + if (ret < 0) + return ret; + + /* + * Now send the HBA command to the adapter + */ + fib->hbacmd_size = 64 + le32_to_cpu(hbacmd->emb_data_desc_count) * + sizeof(struct aac_hba_sgl); + + return aac_hba_send(HBA_IU_TYPE_SCSI_CMD_REQ, fib, + (fib_callback) aac_hba_callback, + (void *) cmd); +} + int aac_issue_bmic_identify(struct aac_dev *dev, u32 bus, u32 target) { struct fib *fibptr; @@ -1527,6 +1601,7 @@ int aac_issue_bmic_identify(struct aac_dev *dev, u32 bus, u32 target) u16 fibsize, datasize; int rcode = -ENOMEM; + fibptr = aac_fib_alloc(dev); if (!fibptr) goto out; @@ -1997,6 +2072,11 @@ int aac_get_adapter_info(struct aac_dev* dev) (dev->scsi_host_ptr->sg_tablesize * 8) + 112; } } + if (!dev->sync_mode && dev->sa_firmware && + dev->scsi_host_ptr->sg_tablesize > HBA_MAX_SG_SEPARATE) + dev->scsi_host_ptr->sg_tablesize = dev->sg_tablesize = + HBA_MAX_SG_SEPARATE; + /* FIB should be freed only after getting the response from the F/W */ if (rcode != -ERESTARTSYS) { aac_fib_complete(fibptr); @@ -2553,7 +2633,7 @@ static int aac_start_stop(struct scsi_cmnd *scsicmd) int aac_scsi_cmd(struct scsi_cmnd * scsicmd) { - u32 cid; + u32 cid, bus; struct Scsi_Host *host = scsicmd->device->host; struct aac_dev *dev = (struct aac_dev *)host->hostdata; struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev; @@ -2599,8 +2679,24 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd) } } } else { /* check for physical non-dasd devices */ - if (dev->nondasd_support || expose_physicals || - dev->jbod) { + bus = aac_logical_to_phys(scmd_channel(scsicmd)); + if (bus < AAC_MAX_BUSES && cid < AAC_MAX_TARGETS && + (dev->hba_map[bus][cid].expose + == AAC_HIDE_DISK)){ + if (scsicmd->cmnd[0] == INQUIRY) { + scsicmd->result = DID_NO_CONNECT << 16; + goto scsi_done_ret; + } + } + + if (bus < AAC_MAX_BUSES && cid < AAC_MAX_TARGETS && + dev->hba_map[bus][cid].devtype + == AAC_DEVTYPE_NATIVE_RAW) { + if (dev->in_reset) + return -1; + return aac_send_hba_fib(scsicmd); + } else if (dev->nondasd_support || expose_physicals || + dev->jbod) { if (dev->in_reset) return -1; return aac_send_srb_fib(scsicmd); @@ -3357,9 +3453,152 @@ static void aac_srb_callback(void *context, struct fib * fibptr) scsicmd->scsi_done(scsicmd); } +static void hba_resp_task_complete(struct aac_dev *dev, + struct scsi_cmnd *scsicmd, + struct aac_hba_resp *err) { + + scsicmd->result = err->status; + /* set residual count */ + scsi_set_resid(scsicmd, le32_to_cpu(err->residual_count)); + + switch (err->status) { + case SAM_STAT_GOOD: + scsicmd->result |= DID_OK << 16 | COMMAND_COMPLETE << 8; + break; + case SAM_STAT_CHECK_CONDITION: + { + int len; + + len = min_t(u8, err->sense_response_data_len, + SCSI_SENSE_BUFFERSIZE); + if (len) + memcpy(scsicmd->sense_buffer, + err->sense_response_buf, len); + scsicmd->result |= DID_OK << 16 | COMMAND_COMPLETE << 8; + break; + } + case SAM_STAT_BUSY: + scsicmd->result |= DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8; + break; + case SAM_STAT_TASK_ABORTED: + scsicmd->result |= DID_ABORT << 16 | ABORT << 8; + break; + case SAM_STAT_RESERVATION_CONFLICT: + case SAM_STAT_TASK_SET_FULL: + default: + scsicmd->result |= DID_ERROR << 16 | COMMAND_COMPLETE << 8; + break; + } +} + +static void hba_resp_task_failure(struct aac_dev *dev, + struct scsi_cmnd *scsicmd, + struct aac_hba_resp *err) +{ + switch (err->status) { + case HBA_RESP_STAT_HBAMODE_DISABLED: + { + u32 bus, cid; + + bus = aac_logical_to_phys(scmd_channel(scsicmd)); + cid = scmd_id(scsicmd); + if (dev->hba_map[bus][cid].devtype == AAC_DEVTYPE_NATIVE_RAW) { + dev->hba_map[bus][cid].devtype = AAC_DEVTYPE_ARC_RAW; + dev->hba_map[bus][cid].rmw_nexus = 0xffffffff; + } + scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8; + break; + } + case HBA_RESP_STAT_IO_ERROR: + case HBA_RESP_STAT_NO_PATH_TO_DEVICE: + scsicmd->result = DID_OK << 16 | + COMMAND_COMPLETE << 8 | SAM_STAT_BUSY; + break; + case HBA_RESP_STAT_IO_ABORTED: + scsicmd->result = DID_ABORT << 16 | ABORT << 8; + break; + case HBA_RESP_STAT_INVALID_DEVICE: + scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8; + break; + case HBA_RESP_STAT_UNDERRUN: + /* UNDERRUN is OK */ + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8; + break; + case HBA_RESP_STAT_OVERRUN: + default: + scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8; + break; + } +} + +/** + * + * aac_hba_callback + * @context: the context set in the fib - here it is scsi cmd + * @fibptr: pointer to the fib + * + * Handles the completion of a native HBA scsi command + * + */ +void aac_hba_callback(void *context, struct fib *fibptr) +{ + struct aac_dev *dev; + struct scsi_cmnd *scsicmd; + + struct aac_hba_resp *err = + &((struct aac_native_hba *)fibptr->hw_fib_va)->resp.err; + + scsicmd = (struct scsi_cmnd *) context; + + if (!aac_valid_context(scsicmd, fibptr)) + return; + + WARN_ON(fibptr == NULL); + dev = fibptr->dev; + + if (!(fibptr->flags & FIB_CONTEXT_FLAG_NATIVE_HBA_TMF)) + scsi_dma_unmap(scsicmd); + + if (fibptr->flags & FIB_CONTEXT_FLAG_FASTRESP) { + /* fast response */ + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8; + goto out; + } + + switch (err->service_response) { + case HBA_RESP_SVCRES_TASK_COMPLETE: + hba_resp_task_complete(dev, scsicmd, err); + break; + case HBA_RESP_SVCRES_FAILURE: + hba_resp_task_failure(dev, scsicmd, err); + break; + case HBA_RESP_SVCRES_TMF_REJECTED: + scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8; + break; + case HBA_RESP_SVCRES_TMF_LUN_INVALID: + scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8; + break; + case HBA_RESP_SVCRES_TMF_COMPLETE: + case HBA_RESP_SVCRES_TMF_SUCCEEDED: + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8; + break; + default: + scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8; + break; + } + +out: + aac_fib_complete(fibptr); + + if (fibptr->flags & FIB_CONTEXT_FLAG_NATIVE_HBA_TMF) + scsicmd->SCp.sent_command = 1; + else + scsicmd->scsi_done(scsicmd); +} + /** * - * aac_send_scb_fib + * aac_send_srb_fib * @scsicmd: the scsi command block * * This routine will form a FIB and fill in the aac_srb from the @@ -3402,6 +3641,54 @@ static int aac_send_srb_fib(struct scsi_cmnd* scsicmd) return -1; } +/** + * + * aac_send_hba_fib + * @scsicmd: the scsi command block + * + * This routine will form a FIB and fill in the aac_hba_cmd_req from the + * scsicmd passed in. + */ +static int aac_send_hba_fib(struct scsi_cmnd *scsicmd) +{ + struct fib *cmd_fibcontext; + struct aac_dev *dev; + int status; + + dev = shost_priv(scsicmd->device->host); + if (scmd_id(scsicmd) >= dev->maximum_num_physicals || + scsicmd->device->lun > AAC_MAX_LUN - 1) { + scsicmd->result = DID_NO_CONNECT << 16; + scsicmd->scsi_done(scsicmd); + return 0; + } + + /* + * Allocate and initialize a Fib then setup a BlockWrite command + */ + cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd); + if (!cmd_fibcontext) + return -1; + + status = aac_adapter_hba(cmd_fibcontext, scsicmd); + + /* + * Check that the command queued to the controller + */ + if (status == -EINPROGRESS) { + scsicmd->SCp.phase = AAC_OWNER_FIRMWARE; + return 0; + } + + pr_warn("aac_hba_cmd_req: aac_fib_send failed with status: %d\n", + status); + aac_fib_complete(cmd_fibcontext); + aac_fib_free(cmd_fibcontext); + + return -1; +} + + static long aac_build_sg(struct scsi_cmnd *scsicmd, struct sgmap *psg) { struct aac_dev *dev; @@ -3654,6 +3941,77 @@ static int aac_convert_sgraw2(struct aac_raw_io2 *rio2, int pages, int nseg, int return 0; } +static long aac_build_sghba(struct scsi_cmnd *scsicmd, + struct aac_hba_cmd_req *hbacmd, + int sg_max, + u64 sg_address) +{ + unsigned long byte_count = 0; + int nseg; + struct scatterlist *sg; + int i; + u32 cur_size; + struct aac_hba_sgl *sge; + + + + nseg = scsi_dma_map(scsicmd); + if (nseg <= 0) { + byte_count = nseg; + goto out; + } + + if (nseg > HBA_MAX_SG_EMBEDDED) + sge = &hbacmd->sge[2]; + else + sge = &hbacmd->sge[0]; + + scsi_for_each_sg(scsicmd, sg, nseg, i) { + int count = sg_dma_len(sg); + u64 addr = sg_dma_address(sg); + + WARN_ON(i >= sg_max); + sge->addr_hi = cpu_to_le32((u32)(addr>>32)); + sge->addr_lo = cpu_to_le32((u32)(addr & 0xffffffff)); + cur_size = cpu_to_le32(count); + sge->len = cur_size; + sge->flags = 0; + byte_count += count; + sge++; + } + + sge--; + /* hba wants the size to be exact */ + if (byte_count > scsi_bufflen(scsicmd)) { + u32 temp; + + temp = le32_to_cpu(sge->len) - byte_count + - scsi_bufflen(scsicmd); + sge->len = cpu_to_le32(temp); + byte_count = scsi_bufflen(scsicmd); + } + + if (nseg <= HBA_MAX_SG_EMBEDDED) { + hbacmd->emb_data_desc_count = cpu_to_le32(nseg); + sge->flags = cpu_to_le32(0x40000000); + } else { + /* not embedded */ + hbacmd->sge[0].flags = cpu_to_le32(0x80000000); + hbacmd->emb_data_desc_count = (u8)cpu_to_le32(1); + hbacmd->sge[0].addr_hi = (u32)cpu_to_le32(sg_address >> 32); + hbacmd->sge[0].addr_lo = + cpu_to_le32((u32)(sg_address & 0xffffffff)); + } + + /* Check for command underflow */ + if (scsicmd->underflow && (byte_count < scsicmd->underflow)) { + pr_warn("aacraid: cmd len %08lX cmd underflow %08X\n", + byte_count, scsicmd->underflow); + } +out: + return byte_count; +} + #ifdef AAC_DETAILED_STATUS_INFO struct aac_srb_status_info { -- 2.20.1