return (cont_pkt);
}
-/**
+static inline int
+qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts)
+{
+ uint8_t guard = scsi_host_get_guard(sp->cmd->device->host);
+
+ /* We only support T10 DIF right now */
+ if (guard != SHOST_DIX_GUARD_CRC) {
+ DEBUG2(printk(KERN_ERR "Unsupported guard: %d\n", guard));
+ return 0;
+ }
+
+ /* We always use DIFF Bundling for best performance */
+ *fw_prot_opts = 0;
+
+ /* Translate SCSI opcode to a protection opcode */
+ switch (scsi_get_prot_op(sp->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:
+ *fw_prot_opts |= PO_MODE_DIF_PASS;
+ break;
+ case SCSI_PROT_WRITE_PASS:
+ *fw_prot_opts |= PO_MODE_DIF_PASS;
+ break;
+ default: /* Normal Request */
+ *fw_prot_opts |= PO_MODE_DIF_PASS;
+ break;
+ }
+
+ return scsi_prot_sg_count(sp->cmd);
+}
+
+/*
* qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit
* capable IOCB types.
*
if ((dsds - 1) % 5)
iocbs++;
}
+ DEBUG3(printk(KERN_DEBUG "%s(): Required PKT(s) = %d\n",
+ __func__, iocbs));
return iocbs;
}
}
}
+struct fw_dif_context {
+ uint32_t ref_tag;
+ uint16_t 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(struct scsi_cmnd *cmd, struct fw_dif_context *pkt,
+ unsigned int protcnt)
+{
+ struct sd_dif_tuple *spt;
+ unsigned char op = scsi_get_prot_op(cmd);
+
+ switch (scsi_get_prot_type(cmd)) {
+ /* For TYPE 0 protection: no checking */
+ case SCSI_PROT_DIF_TYPE0:
+ pkt->ref_tag_mask[0] = 0x00;
+ pkt->ref_tag_mask[1] = 0x00;
+ pkt->ref_tag_mask[2] = 0x00;
+ pkt->ref_tag_mask[3] = 0x00;
+ break;
+
+ /*
+ * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to
+ * match LBA in CDB + N
+ */
+ case SCSI_PROT_DIF_TYPE2:
+ break;
+
+ /* For Type 3 protection: 16 bit GUARD only */
+ case SCSI_PROT_DIF_TYPE3:
+ pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] =
+ pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] =
+ 0x00;
+ break;
+
+ /*
+ * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and
+ * 16 bit app tag.
+ */
+ case SCSI_PROT_DIF_TYPE1:
+ if (!ql2xenablehba_err_chk)
+ break;
+
+ if (protcnt && (op == SCSI_PROT_WRITE_STRIP ||
+ op == SCSI_PROT_WRITE_PASS)) {
+ spt = page_address(sg_page(scsi_prot_sglist(cmd))) +
+ scsi_prot_sglist(cmd)[0].offset;
+ DEBUG18(printk(KERN_DEBUG
+ "%s(): LBA from user %p, lba = 0x%x\n",
+ __func__, spt, (int)spt->ref_tag));
+ pkt->ref_tag = swab32(spt->ref_tag);
+ pkt->app_tag_mask[0] = 0x0;
+ pkt->app_tag_mask[1] = 0x0;
+ } else {
+ pkt->ref_tag = cpu_to_le32((uint32_t)
+ (0xffffffff & scsi_get_lba(cmd)));
+ pkt->app_tag = __constant_cpu_to_le16(0);
+ pkt->app_tag_mask[0] = 0x0;
+ pkt->app_tag_mask[1] = 0x0;
+ }
+ /* enable ALL bytes of the ref tag */
+ pkt->ref_tag_mask[0] = 0xff;
+ pkt->ref_tag_mask[1] = 0xff;
+ pkt->ref_tag_mask[2] = 0xff;
+ pkt->ref_tag_mask[3] = 0xff;
+ break;
+ }
+
+ DEBUG18(printk(KERN_DEBUG
+ "%s(): Setting protection Tags: (BIG) ref tag = 0x%x,"
+ " app tag = 0x%x, prot SG count %d , cmd lba 0x%x,"
+ " prot_type=%u\n", __func__, pkt->ref_tag, pkt->app_tag, protcnt,
+ (int)scsi_get_lba(cmd), scsi_get_prot_type(cmd)));
+}
+
+
+static int
+qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd,
+ uint16_t tot_dsds)
+{
+ void *next_dsd;
+ uint8_t avail_dsds = 0;
+ uint32_t dsd_list_len;
+ struct dsd_dma *dsd_ptr;
+ struct scatterlist *sg;
+ uint32_t *cur_dsd = dsd;
+ int i;
+ uint16_t used_dsds = tot_dsds;
+
+ uint8_t *cp;
+
+ scsi_for_each_sg(sp->cmd, sg, tot_dsds, i) {
+ dma_addr_t sle_dma;
+
+ /* 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;
+ }
+
+ list_add_tail(&dsd_ptr->list,
+ &((struct crc_context *)sp->ctx)->dsd_list);
+
+ sp->flags |= SRB_CRC_CTX_DSD_VALID;
+
+ /* add new list to cmd iocb or last list */
+ *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
+ *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
+ *cur_dsd++ = dsd_list_len;
+ cur_dsd = (uint32_t *)next_dsd;
+ }
+ sle_dma = sg_dma_address(sg);
+ DEBUG18(printk("%s(): %p, sg entry %d - addr =0x%x 0x%x,"
+ " len =%d\n", __func__ , cur_dsd, i, LSD(sle_dma),
+ MSD(sle_dma), sg_dma_len(sg)));
+ *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
+ *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
+ *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
+ avail_dsds--;
+
+ if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) {
+ cp = page_address(sg_page(sg)) + sg->offset;
+ DEBUG18(printk("%s(): User Data buffer= %p:\n",
+ __func__ , cp));
+ }
+ }
+ /* Null termination */
+ *cur_dsd++ = 0;
+ *cur_dsd++ = 0;
+ *cur_dsd++ = 0;
+ return 0;
+}
+
+static int
+qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp,
+ uint32_t *dsd,
+ uint16_t tot_dsds)
+{
+ void *next_dsd;
+ uint8_t avail_dsds = 0;
+ uint32_t dsd_list_len;
+ struct dsd_dma *dsd_ptr;
+ struct scatterlist *sg;
+ int i;
+ struct scsi_cmnd *cmd;
+ uint32_t *cur_dsd = dsd;
+ uint16_t used_dsds = tot_dsds;
+
+ uint8_t *cp;
+
+
+ cmd = sp->cmd;
+ scsi_for_each_prot_sg(cmd, sg, tot_dsds, i) {
+ dma_addr_t sle_dma;
+
+ /* 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;
+ }
+
+ list_add_tail(&dsd_ptr->list,
+ &((struct crc_context *)sp->ctx)->dsd_list);
+
+ sp->flags |= SRB_CRC_CTX_DSD_VALID;
+
+ /* add new list to cmd iocb or last list */
+ *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
+ *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
+ *cur_dsd++ = dsd_list_len;
+ cur_dsd = (uint32_t *)next_dsd;
+ }
+ sle_dma = sg_dma_address(sg);
+ if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) {
+ DEBUG18(printk(KERN_DEBUG
+ "%s(): %p, sg entry %d - addr =0x%x"
+ "0x%x, len =%d\n", __func__ , cur_dsd, i,
+ LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg)));
+ }
+ *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
+ *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
+ *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
+
+ if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) {
+ cp = page_address(sg_page(sg)) + sg->offset;
+ DEBUG18(printk("%s(): Protection Data buffer = %p:\n",
+ __func__ , cp));
+ }
+ avail_dsds--;
+ }
+ /* Null termination */
+ *cur_dsd++ = 0;
+ *cur_dsd++ = 0;
+ *cur_dsd++ = 0;
+ 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
+ */
+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)
+{
+ uint32_t *cur_dsd, *fcp_dl;
+ scsi_qla_host_t *vha;
+ struct scsi_cmnd *cmd;
+ struct scatterlist *cur_seg;
+ int sgc;
+ uint32_t total_bytes;
+ uint32_t data_bytes;
+ uint32_t dif_bytes;
+ uint8_t bundling = 1;
+ uint16_t blk_size;
+ uint8_t *clr_ptr;
+ 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 = sp->cmd;
+
+ sgc = 0;
+ /* Update entry type to indicate Command Type CRC_2 IOCB */
+ *((uint32_t *)(&cmd_pkt->entry_type)) =
+ __constant_cpu_to_le32(COMMAND_TYPE_CRC_2);
+
+ /* No data transfer */
+ data_bytes = scsi_bufflen(cmd);
+ if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
+ DEBUG18(printk(KERN_INFO "%s: Zero data bytes or DMA-NONE %d\n",
+ __func__, data_bytes));
+ cmd_pkt->byte_count = __constant_cpu_to_le32(0);
+ return QLA_SUCCESS;
+ }
+
+ vha = sp->fcport->vha;
+ ha = vha->hw;
+
+ DEBUG18(printk(KERN_DEBUG
+ "%s(%ld): Executing cmd sp %p, pid=%ld, prot_op=%u.\n", __func__,
+ vha->host_no, sp, cmd->serial_number, scsi_get_prot_op(sp->cmd)));
+
+ cmd_pkt->vp_index = sp->fcport->vp_idx;
+
+ /* Set transfer direction */
+ if (cmd->sc_data_direction == DMA_TO_DEVICE) {
+ cmd_pkt->control_flags =
+ __constant_cpu_to_le16(CF_WRITE_DATA);
+ } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
+ cmd_pkt->control_flags =
+ __constant_cpu_to_le16(CF_READ_DATA);
+ }
+
+ tot_prot_dsds = scsi_prot_sg_count(cmd);
+ if (!tot_prot_dsds)
+ bundling = 0;
+
+ /* Allocate CRC context from global pool */
+ crc_ctx_pkt = sp->ctx = dma_pool_alloc(ha->dl_dma_pool,
+ GFP_ATOMIC, &crc_ctx_dma);
+
+ if (!crc_ctx_pkt)
+ goto crc_queuing_error;
+
+ /* Zero out CTX area. */
+ clr_ptr = (uint8_t *)crc_ctx_pkt;
+ memset(clr_ptr, 0, sizeof(*crc_ctx_pkt));
+
+ 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(cmd, (struct fw_dif_context *)
+ &crc_ctx_pkt->ref_tag, tot_prot_dsds);
+
+ cmd_pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma));
+ cmd_pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma));
+ cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW;
+
+ /* Determine SCSI command length -- align to 4 byte boundary */
+ if (cmd->cmd_len > 16) {
+ DEBUG18(printk(KERN_INFO "%s(): **** SCSI CMD > 16\n",
+ __func__));
+ 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(sp->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);
+ cmd_pkt->fcp_cmnd_dseg_address[0] = cpu_to_le32(
+ LSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF));
+ cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32(
+ MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF));
+ fcp_cmnd->task_attribute = 0;
+ fcp_cmnd->task_managment = 0;
+
+ cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */
+
+ DEBUG18(printk(KERN_INFO "%s(%ld): Total SG(s) Entries %d, Data"
+ "entries %d, data bytes %d, Protection entries %d\n",
+ __func__, vha->host_no, tot_dsds, (tot_dsds-tot_prot_dsds),
+ data_bytes, tot_prot_dsds));
+
+ /* Compute dif len and adjust data len to incude protection */
+ total_bytes = data_bytes;
+ dif_bytes = 0;
+ blk_size = cmd->device->sector_size;
+ if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE1) {
+ dif_bytes = (data_bytes / blk_size) * 8;
+ total_bytes += dif_bytes;
+ }
+
+ if (!ql2xenablehba_err_chk)
+ fw_prot_opts |= 0x10; /* Disable Guard tag checking */
+
+ if (!bundling) {
+ cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address;
+ } 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 = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address;
+ }
+
+ /* 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 = __constant_cpu_to_le16(0);
+ /* Fibre channel byte count */
+ cmd_pkt->byte_count = cpu_to_le32(total_bytes);
+ fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 +
+ additional_fcpcdb_len);
+ *fcp_dl = htonl(total_bytes);
+
+ DEBUG18(printk(KERN_INFO "%s(%ld): dif bytes = 0x%x (%d), total bytes"
+ " = 0x%x (%d), dat block size =0x%x (%d)\n", __func__,
+ vha->host_no, dif_bytes, dif_bytes, total_bytes, total_bytes,
+ crc_ctx_pkt->blk_size, crc_ctx_pkt->blk_size));
+
+ /* Walks data segments */
+
+ cmd_pkt->control_flags |=
+ __constant_cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE);
+ if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd,
+ (tot_dsds - tot_prot_dsds)))
+ goto crc_queuing_error;
+
+ if (bundling && tot_prot_dsds) {
+ /* Walks dif segments */
+ cur_seg = scsi_prot_sglist(cmd);
+ cmd_pkt->control_flags |=
+ __constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE);
+ cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address;
+ if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd,
+ tot_prot_dsds))
+ goto crc_queuing_error;
+ }
+ return QLA_SUCCESS;
+
+crc_queuing_error:
+ DEBUG18(qla_printk(KERN_INFO, ha,
+ "CMD sent FAILED crc_q error:sp = %p\n", sp));
+ /* Cleanup will be performed by the caller */
+
+ return QLA_FUNCTION_FAILED;
+}
/**
* qla24xx_start_scsi() - Send a SCSI command to the ISP
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 index;
+ 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 = sp->cmd;
+ 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;
+
+#define QDSS_GOT_Q_SPACE BIT_0
+
+ /* Only process protection in this routine */
+ if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL)
+ return qla24xx_start_scsi(sp);
+
+ /* Setup device pointers. */
+
+ qla25xx_set_que(sp, &rsp);
+ req = vha->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, req, rsp, 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);
+
+ /* Check for room in outstanding command list. */
+ handle = req->current_outstanding_cmd;
+ for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
+ handle++;
+ if (handle == MAX_OUTSTANDING_COMMANDS)
+ handle = 1;
+ if (!req->outstanding_cmds[handle])
+ break;
+ }
+
+ if (index == MAX_OUTSTANDING_COMMANDS)
+ 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;
+ } 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;
+ } else {
+ nseg = 0;
+ }
+
+ req_cnt = 1;
+ /* Total Data and protection sg segment(s) */
+ tot_prot_dsds = nseg;
+ tot_dsds += nseg;
+ if (req->cnt < (req_cnt + 2)) {
+ cnt = RD_REG_DWORD_RELAXED(req->req_q_out);
+
+ 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->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(sp->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 = __constant_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++;
+
+ /* Set chip new ring index. */
+ WRT_REG_DWORD(req->req_q_in, req->ring_index);
+ RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr);
+
+ /* 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) */
+
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ DEBUG18(qla_printk(KERN_INFO, ha,
+ "CMD sent FAILED SCSI prot_op:%02x\n", scsi_get_prot_op(cmd)));
+ return QLA_FUNCTION_FAILED;
+}
+
+
static void qla25xx_set_que(srb_t *sp, struct rsp_que **rsp)
{
struct scsi_cmnd *cmd = sp->cmd;
MODULE_PARM_DESC(ql2xmaxqdepth,
"Maximum queue depth to report for target devices.");
+/* Do not change the value of this after module load */
+int ql2xenabledif = 1;
+module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(ql2xenabledif,
+ " Enable T10-CRC-DIF "
+ " Default is 0 - No DIF Support. 1 - Enable it");
+
+int ql2xenablehba_err_chk;
+module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(ql2xenablehba_err_chk,
+ " Enable T10-CRC-DIF Error isolation by HBA"
+ " Default is 0 - Error isolation disabled, 1 - Enable it");
+
int ql2xiidmaenable=1;
module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xiidmaenable,
if (fcport->drport)
goto qc24_target_busy;
+ if (!vha->flags.difdix_supported &&
+ scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
+ DEBUG2(qla_printk(KERN_ERR, ha,
+ "DIF Cap Not Reg, fail DIF capable cmd's:%x\n",
+ cmd->cmnd[0]));
+ cmd->result = DID_NO_CONNECT << 16;
+ goto qc24_fail_command;
+ }
if (atomic_read(&fcport->state) != FCS_ONLINE) {
if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
if (sp == NULL)
continue;
- if ((sp->ctx) && !(sp->flags & SRB_FCP_CMND_DMA_VALID))
+ if ((sp->ctx) && !(sp->flags & SRB_FCP_CMND_DMA_VALID) &&
+ !IS_PROT_IO(sp))
continue;
if (sp->cmd != cmd)
continue;
sp = req->outstanding_cmds[cnt];
if (!sp)
continue;
- if (sp->ctx)
+ if ((sp->ctx) && !IS_PROT_IO(sp))
continue;
if (vha->vp_idx != sp->fcport->vha->vp_idx)
continue;
if (sp) {
req->outstanding_cmds[cnt] = NULL;
if (!sp->ctx ||
- (sp->flags & SRB_FCP_CMND_DMA_VALID)) {
+ (sp->flags & SRB_FCP_CMND_DMA_VALID) ||
+ IS_PROT_IO(sp)) {
sp->cmd->result = res;
qla2x00_sp_compl(ha, sp);
} else {
.read_optrom = qla25xx_read_optrom_data,
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
- .start_scsi = qla24xx_start_scsi,
+ .start_scsi = qla24xx_dif_start_scsi,
.abort_isp = qla2x00_abort_isp,
};
DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
base_vha->host_no, ha));
+ if (IS_QLA25XX(ha) && ql2xenabledif) {
+ if (ha->fw_attributes & BIT_4) {
+ base_vha->flags.difdix_supported = 1;
+ DEBUG18(qla_printk(KERN_INFO, ha,
+ "Registering for DIF/DIX type 1 and 3"
+ " protection.\n"));
+ scsi_host_set_prot(host,
+ SHOST_DIF_TYPE1_PROTECTION
+ | SHOST_DIF_TYPE3_PROTECTION
+ | SHOST_DIX_TYPE1_PROTECTION
+ | SHOST_DIX_TYPE3_PROTECTION);
+ scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
+ } else
+ base_vha->flags.difdix_supported = 0;
+ }
+
ha->isp_ops->enable_intrs(ha);
ret = scsi_add_host(host, &pdev->dev);
if (!ha->s_dma_pool)
goto fail_free_nvram;
- if (IS_QLA82XX(ha)) {
+ if (IS_QLA82XX(ha) || ql2xenabledif) {
ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
DSD_LIST_DMA_POOL_SIZE, 8, 0);
if (!ha->dl_dma_pool) {
ha->ms_iocb = NULL;
ha->ms_iocb_dma = 0;
fail_dma_pool:
- if (IS_QLA82XX(ha)) {
+ if (IS_QLA82XX(ha) || ql2xenabledif) {
dma_pool_destroy(ha->fcp_cmnd_dma_pool);
ha->fcp_cmnd_dma_pool = NULL;
}
fail_dl_dma_pool:
- if (IS_QLA82XX(ha)) {
+ if (IS_QLA82XX(ha) || ql2xenabledif) {
dma_pool_destroy(ha->dl_dma_pool);
ha->dl_dma_pool = NULL;
}
qla2x00_sp_free_dma(srb_t *sp)
{
struct scsi_cmnd *cmd = sp->cmd;
+ struct qla_hw_data *ha = sp->fcport->vha->hw;
if (sp->flags & SRB_DMA_VALID) {
scsi_dma_unmap(cmd);
sp->flags &= ~SRB_DMA_VALID;
}
+
+ if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
+ dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
+ scsi_prot_sg_count(cmd), cmd->sc_data_direction);
+ sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
+ }
+
+ if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
+ /* List assured to be having elements */
+ qla2x00_clean_dsd_pool(ha, sp);
+ sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
+ }
+
+ if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
+ dma_pool_free(ha->dl_dma_pool, sp->ctx,
+ ((struct crc_context *)sp->ctx)->crc_ctx_dma);
+ sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
+ }
+
CMD_SP(cmd) = NULL;
}
sp = req->outstanding_cmds[index];
if (!sp)
continue;
- if (sp->ctx)
+ if (sp->ctx && !IS_PROT_IO(sp))
continue;
sfcp = sp->fcport;
if (!(sfcp->flags & FCF_FCP2_DEVICE))
projects / linux-beck.git / commitdiff