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Commit ff2fc42e authored Feb 23, 2011 by Andrew Vasquez Committed by James Bottomley Feb 25, 2011

[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>

parent 97dec564

drivers/scsi/qla2xxx/qla_iocb.c

+50 −2

Original line number	Diff line number	Diff line
		@@ -328,6 +328,7 @@ qla2x00_start_scsi(srb_t *sp)
		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 @@ qla2x00_start_scsi(srb_t *sp)
		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 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t sp, struct cmd_type_crc_2 cmd_pkt,
		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 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t sp, struct cmd_type_crc_2 cmd_pkt,
		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 @@ qla24xx_start_scsi(srb_t *sp)
		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 @@ qla24xx_start_scsi(srb_t *sp)
		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));

drivers/scsi/qla2xxx/qla_nx.c

+32 −0

Original line number	Diff line number	Diff line
		@@ -7,6 +7,7 @@
		#include "qla_def.h"
		#include <linux/delay.h>
		#include <linux/pci.h>
		#include <scsi/scsi_tcq.h>

		#define MASK(n) ((1ULL<<(n))-1)
		#define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) \| \
		@@ -2620,6 +2621,7 @@ qla82xx_start_scsi(srb_t *sp)
		struct qla_hw_data *ha = vha->hw;
		struct req_que *req = NULL;
		struct rsp_que *rsp = NULL;
		char tag[2];

		/* Setup device pointers. */
		ret = 0;
		@@ -2770,6 +2772,22 @@ sufficient_dsds:
		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:
		ctx->fcp_cmnd->task_attribute =
		TSK_HEAD_OF_QUEUE;
		break;
		case ORDERED_QUEUE_TAG:
		ctx->fcp_cmnd->task_attribute =
		TSK_ORDERED;
		break;
		}
		}

		/* build FCP_CMND IU */
		memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd));
		int_to_scsilun(sp->cmd->device->lun, &ctx->fcp_cmnd->lun);
		@@ -2835,6 +2853,20 @@ sufficient_dsds:
		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));

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