[SCSI] qla2xxx: Propagate block-layer tags on submitted I/Os.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 4c1ba62..d78d589 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -328,6 +328,7 @@
struct qla_hw_data *ha;
struct req_que *req;
struct rsp_que *rsp;
+ char tag[2];
/* Setup device pointers. */
ret = 0;
@@ -406,7 +407,22 @@
cmd_pkt->lun = cpu_to_le16(sp->cmd->device->lun);
/* Update tagged queuing modifier */
- cmd_pkt->control_flags = __constant_cpu_to_le16(CF_SIMPLE_TAG);
+ if (scsi_populate_tag_msg(cmd, tag)) {
+ switch (tag[0]) {
+ case HEAD_OF_QUEUE_TAG:
+ cmd_pkt->control_flags =
+ __constant_cpu_to_le16(CF_HEAD_TAG);
+ break;
+ case ORDERED_QUEUE_TAG:
+ cmd_pkt->control_flags =
+ __constant_cpu_to_le16(CF_ORDERED_TAG);
+ break;
+ default:
+ cmd_pkt->control_flags =
+ __constant_cpu_to_le16(CF_SIMPLE_TAG);
+ break;
+ }
+ }
/* Load SCSI command packet. */
memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len);
@@ -971,6 +987,7 @@
uint16_t fcp_cmnd_len;
struct fcp_cmnd *fcp_cmnd;
dma_addr_t crc_ctx_dma;
+ char tag[2];
cmd = sp->cmd;
@@ -1068,9 +1085,27 @@
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_management = 0;
+ /*
+ * Update tagged queuing modifier if using command tag queuing
+ */
+ if (scsi_populate_tag_msg(cmd, tag)) {
+ switch (tag[0]) {
+ case HEAD_OF_QUEUE_TAG:
+ fcp_cmnd->task_attribute = TSK_HEAD_OF_QUEUE;
+ break;
+ case ORDERED_QUEUE_TAG:
+ fcp_cmnd->task_attribute = TSK_ORDERED;
+ break;
+ default:
+ fcp_cmnd->task_attribute = 0;
+ break;
+ }
+ } else {
+ fcp_cmnd->task_attribute = 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"
@@ -1177,6 +1212,7 @@
struct scsi_cmnd *cmd = sp->cmd;
struct scsi_qla_host *vha = sp->fcport->vha;
struct qla_hw_data *ha = vha->hw;
+ char tag[2];
/* Setup device pointers. */
ret = 0;
@@ -1260,6 +1296,18 @@
int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
+ /* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */
+ if (scsi_populate_tag_msg(cmd, tag)) {
+ switch (tag[0]) {
+ case HEAD_OF_QUEUE_TAG:
+ cmd_pkt->task = TSK_HEAD_OF_QUEUE;
+ break;
+ case ORDERED_QUEUE_TAG:
+ cmd_pkt->task = TSK_ORDERED;
+ break;
+ }
+ }
+
/* 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));