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Commit 09ff701a authored Mar 19, 2010 by Sarang Radke Committed by James Bottomley Apr 11, 2010

[SCSI] qla2xxx: Add APEX support.



Allows priority setting for FCP_CMNDs.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

parent 6e98016c

drivers/scsi/qla2xxx/qla_bsg.c

+163 −0

Original line number	Diff line number	Diff line
		@@ -35,6 +35,166 @@ done:
		return sp;
		}

		int
		qla24xx_fcp_prio_cfg_valid(struct qla_fcp_prio_cfg *pri_cfg, uint8_t flag)
		{
		int i, ret, num_valid;
		uint8_t *bcode;
		struct qla_fcp_prio_entry *pri_entry;

		ret = 1;
		num_valid = 0;
		bcode = (uint8_t *)pri_cfg;

		if (bcode[0x0] != 'H' \|\| bcode[0x1] != 'Q' \|\| bcode[0x2] != 'O' \|\|
		bcode[0x3] != 'S') {
		return 0;
		}
		if (flag != 1)
		return ret;

		pri_entry = &pri_cfg->entry[0];
		for (i = 0; i < pri_cfg->num_entries; i++) {
		if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
		num_valid++;
		pri_entry++;
		}

		if (num_valid == 0)
		ret = 0;

		return ret;
		}

		static int
		qla24xx_proc_fcp_prio_cfg_cmd(struct fc_bsg_job *bsg_job)
		{
		struct Scsi_Host *host = bsg_job->shost;
		scsi_qla_host_t *vha = shost_priv(host);
		struct qla_hw_data *ha = vha->hw;
		int ret = 0;
		uint32_t len;
		uint32_t oper;

		bsg_job->reply->reply_payload_rcv_len = 0;

		if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) \|\|
		test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) \|\|
		test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
		ret = -EBUSY;
		goto exit_fcp_prio_cfg;
		}

		/* Get the sub command */
		oper = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];

		/* Only set config is allowed if config memory is not allocated */
		if (!ha->fcp_prio_cfg && (oper != QLFC_FCP_PRIO_SET_CONFIG)) {
		ret = -EINVAL;
		goto exit_fcp_prio_cfg;
		}
		switch (oper) {
		case QLFC_FCP_PRIO_DISABLE:
		if (ha->flags.fcp_prio_enabled) {
		ha->flags.fcp_prio_enabled = 0;
		ha->fcp_prio_cfg->attributes &=
		~FCP_PRIO_ATTR_ENABLE;
		qla24xx_update_all_fcp_prio(vha);
		bsg_job->reply->result = DID_OK;
		} else {
		ret = -EINVAL;
		bsg_job->reply->result = (DID_ERROR << 16);
		goto exit_fcp_prio_cfg;
		}
		break;

		case QLFC_FCP_PRIO_ENABLE:
		if (!ha->flags.fcp_prio_enabled) {
		if (ha->fcp_prio_cfg) {
		ha->flags.fcp_prio_enabled = 1;
		ha->fcp_prio_cfg->attributes \|=
		FCP_PRIO_ATTR_ENABLE;
		qla24xx_update_all_fcp_prio(vha);
		bsg_job->reply->result = DID_OK;
		} else {
		ret = -EINVAL;
		bsg_job->reply->result = (DID_ERROR << 16);
		goto exit_fcp_prio_cfg;
		}
		}
		break;

		case QLFC_FCP_PRIO_GET_CONFIG:
		len = bsg_job->reply_payload.payload_len;
		if (!len \|\| len > FCP_PRIO_CFG_SIZE) {
		ret = -EINVAL;
		bsg_job->reply->result = (DID_ERROR << 16);
		goto exit_fcp_prio_cfg;
		}

		bsg_job->reply->result = DID_OK;
		bsg_job->reply->reply_payload_rcv_len =
		sg_copy_from_buffer(
		bsg_job->reply_payload.sg_list,
		bsg_job->reply_payload.sg_cnt, ha->fcp_prio_cfg,
		len);

		break;

		case QLFC_FCP_PRIO_SET_CONFIG:
		len = bsg_job->request_payload.payload_len;
		if (!len \|\| len > FCP_PRIO_CFG_SIZE) {
		bsg_job->reply->result = (DID_ERROR << 16);
		ret = -EINVAL;
		goto exit_fcp_prio_cfg;
		}

		if (!ha->fcp_prio_cfg) {
		ha->fcp_prio_cfg = vmalloc(FCP_PRIO_CFG_SIZE);
		if (!ha->fcp_prio_cfg) {
		qla_printk(KERN_WARNING, ha,
		"Unable to allocate memory "
		"for fcp prio config data (%x).\n",
		FCP_PRIO_CFG_SIZE);
		bsg_job->reply->result = (DID_ERROR << 16);
		ret = -ENOMEM;
		goto exit_fcp_prio_cfg;
		}
		}

		memset(ha->fcp_prio_cfg, 0, FCP_PRIO_CFG_SIZE);
		sg_copy_to_buffer(bsg_job->request_payload.sg_list,
		bsg_job->request_payload.sg_cnt, ha->fcp_prio_cfg,
		FCP_PRIO_CFG_SIZE);

		/* validate fcp priority data */
		if (!qla24xx_fcp_prio_cfg_valid(
		(struct qla_fcp_prio_cfg *)
		ha->fcp_prio_cfg, 1)) {
		bsg_job->reply->result = (DID_ERROR << 16);
		ret = -EINVAL;
		/* If buffer was invalidatic int
		* fcp_prio_cfg is of no use
		*/
		vfree(ha->fcp_prio_cfg);
		ha->fcp_prio_cfg = NULL;
		goto exit_fcp_prio_cfg;
		}

		ha->flags.fcp_prio_enabled = 0;
		if (ha->fcp_prio_cfg->attributes & FCP_PRIO_ATTR_ENABLE)
		ha->flags.fcp_prio_enabled = 1;
		qla24xx_update_all_fcp_prio(vha);
		bsg_job->reply->result = DID_OK;
		break;
		default:
		ret = -EINVAL;
		break;
		}
		exit_fcp_prio_cfg:
		bsg_job->job_done(bsg_job);
		return ret;
		}
		static int
		qla2x00_process_els(struct fc_bsg_job *bsg_job)
		{
		@@ -948,6 +1108,9 @@ qla2x00_process_vendor_specific(struct fc_bsg_job *bsg_job)
		case QL_VND_IIDMA:
		return qla24xx_iidma(bsg_job);

		case QL_VND_FCP_PRIO_CFG_CMD:
		return qla24xx_proc_fcp_prio_cfg_cmd(bsg_job);

		default:
		bsg_job->reply->result = (DID_ERROR << 16);
		bsg_job->job_done(bsg_job);

drivers/scsi/qla2xxx/qla_def.h

+7 −0

Original line number	Diff line number	Diff line
		@@ -1580,6 +1580,8 @@ typedef struct fc_port {
		uint16_t loop_id;
		uint16_t old_loop_id;

		uint8_t fcp_prio;

		uint8_t fabric_port_name[WWN_SIZE];
		uint16_t fp_speed;

		@@ -2296,6 +2298,7 @@ struct qla_hw_data {
		uint32_t eeh_busy :1;
		uint32_t cpu_affinity_enabled :1;
		uint32_t disable_msix_handshake :1;
		uint32_t fcp_prio_enabled :1;
		} flags;

		/* This spinlock is used to protect "io transactions", you must
		@@ -2599,6 +2602,7 @@ struct qla_hw_data {
		uint32_t flt_region_nvram;
		uint32_t flt_region_npiv_conf;
		uint32_t flt_region_gold_fw;
		uint32_t flt_region_fcp_prio;

		/* Needed for BEACON */
		uint16_t beacon_blink_led;
		@@ -2627,6 +2631,9 @@ struct qla_hw_data {
		struct isp_operations *isp_ops;
		struct workqueue_struct *wq;
		struct qlfc_fw fw_buf;

		/* FCP_CMND priority support */
		struct qla_fcp_prio_cfg *fcp_prio_cfg;
		};

		/*

drivers/scsi/qla2xxx/qla_fw.h

+59 −0

Original line number	Diff line number	Diff line
		@@ -841,6 +841,8 @@ struct device_reg_24xx {
		#define FA_HW_EVENT_ENTRY_SIZE 4
		#define FA_NPIV_CONF0_ADDR 0x5C000
		#define FA_NPIV_CONF1_ADDR 0x5D000
		#define FA_FCP_PRIO0_ADDR 0x10000
		#define FA_FCP_PRIO1_ADDR 0x12000

		/*
		* Flash Error Log Event Codes.
		@@ -1274,6 +1276,8 @@ struct qla_flt_header {
		#define FLT_REG_NPIV_CONF_0 0x29
		#define FLT_REG_NPIV_CONF_1 0x2a
		#define FLT_REG_GOLD_FW 0x2f
		#define FLT_REG_FCP_PRIO_0 0x87
		#define FLT_REG_FCP_PRIO_1 0x88

		struct qla_flt_region {
		uint32_t code;
		@@ -1750,6 +1754,61 @@ struct ex_init_cb_81xx {
		#define FARX_ACCESS_FLASH_CONF_81XX 0x7FFD0000
		#define FARX_ACCESS_FLASH_DATA_81XX 0x7F800000

		/* FCP priority config defines *************************************/
		/* operations */
		#define QLFC_FCP_PRIO_DISABLE 0x0
		#define QLFC_FCP_PRIO_ENABLE 0x1
		#define QLFC_FCP_PRIO_GET_CONFIG 0x2
		#define QLFC_FCP_PRIO_SET_CONFIG 0x3

		struct qla_fcp_prio_entry {
		uint16_t flags; /* Describes parameter(s) in FCP */
		/* priority entry that are valid */
		#define FCP_PRIO_ENTRY_VALID 0x1
		#define FCP_PRIO_ENTRY_TAG_VALID 0x2
		#define FCP_PRIO_ENTRY_SPID_VALID 0x4
		#define FCP_PRIO_ENTRY_DPID_VALID 0x8
		#define FCP_PRIO_ENTRY_LUNB_VALID 0x10
		#define FCP_PRIO_ENTRY_LUNE_VALID 0x20
		#define FCP_PRIO_ENTRY_SWWN_VALID 0x40
		#define FCP_PRIO_ENTRY_DWWN_VALID 0x80
		uint8_t tag; /* Priority value */
		uint8_t reserved; /* Reserved for future use */
		uint32_t src_pid; /* Src port id. high order byte */
		/* unused; -1 (wild card) */
		uint32_t dst_pid; /* Src port id. high order byte */
		/* unused; -1 (wild card) */
		uint16_t lun_beg; /* 1st lun num of lun range. */
		/* -1 (wild card) */
		uint16_t lun_end; /* 2nd lun num of lun range. */
		/* -1 (wild card) */
		uint8_t src_wwpn[8]; /* Source WWPN: -1 (wild card) */
		uint8_t dst_wwpn[8]; /* Destination WWPN: -1 (wild card) */
		};

		struct qla_fcp_prio_cfg {
		uint8_t signature[4]; /* "HQOS" signature of config data */
		uint16_t version; /* 1: Initial version */
		uint16_t length; /* config data size in num bytes */
		uint16_t checksum; /* config data bytes checksum */
		uint16_t num_entries; /* Number of entries */
		uint16_t size_of_entry; /* Size of each entry in num bytes */
		uint8_t attributes; /* enable/disable, persistence */
		#define FCP_PRIO_ATTR_DISABLE 0x0
		#define FCP_PRIO_ATTR_ENABLE 0x1
		#define FCP_PRIO_ATTR_PERSIST 0x2
		uint8_t reserved; /* Reserved for future use */
		#define FCP_PRIO_CFG_HDR_SIZE 0x10
		struct qla_fcp_prio_entry entry[1]; /* fcp priority entries */
		#define FCP_PRIO_CFG_ENTRY_SIZE 0x20
		};

		#define FCP_PRIO_CFG_SIZE (321024) / fcp prio data per port*/

		/* 25XX Support ****************************************************/
		#define FA_FCP_PRIO0_ADDR_25 0x3C000
		#define FA_FCP_PRIO1_ADDR_25 0x3E000

		/* 81XX Flash locations -- occupies second 2MB region. */
		#define FA_BOOT_CODE_ADDR_81 0x80000
		#define FA_RISC_CODE_ADDR_81 0xA0000

drivers/scsi/qla2xxx/qla_gbl.h

+8 −1

Original line number	Diff line number	Diff line
		@@ -328,6 +328,9 @@ extern int
		qla2x00_write_ram_word(scsi_qla_host_t *, uint32_t, uint32_t);

		extern int qla2x00_get_data_rate(scsi_qla_host_t *);
		extern int qla24xx_set_fcp_prio(scsi_qla_host_t *, uint16_t, uint16_t,
		uint16_t *);

		/*
		* Global Function Prototypes in qla_isr.c source file.
		*/
		@@ -384,6 +387,7 @@ extern int qla2xxx_get_flash_info(scsi_qla_host_t *);
		extern int qla2xxx_get_vpd_field(scsi_qla_host_t , char , char *, size_t);

		extern void qla2xxx_flash_npiv_conf(scsi_qla_host_t *);
		extern int qla24xx_read_fcp_prio_cfg(scsi_qla_host_t *);

		/*
		* Global Function Prototypes in qla_dbg.c source file.
		@@ -430,7 +434,10 @@ extern void qla2x00_init_host_attr(scsi_qla_host_t *);
		extern void qla2x00_alloc_sysfs_attr(scsi_qla_host_t *);
		extern void qla2x00_free_sysfs_attr(scsi_qla_host_t *);
		extern int qla2x00_loopback_test(scsi_qla_host_t , struct msg_echo_lb , uint16_t *);
		extern int qla2x00_echo_test(scsi_qla_host_t , struct msg_echo_lb , uint16_t *);
		extern int qla2x00_echo_test(scsi_qla_host_t *,
		struct msg_echo_lb , uint16_t );
		extern int qla24xx_update_all_fcp_prio(scsi_qla_host_t *);
		extern int qla24xx_fcp_prio_cfg_valid(struct qla_fcp_prio_cfg *, uint8_t);

		/*
		* Global Function Prototypes in qla_dfs.c source file.

drivers/scsi/qla2xxx/qla_init.c

+168 −0

Original line number	Diff line number	Diff line
		@@ -349,6 +349,12 @@ qla2x00_initialize_adapter(scsi_qla_host_t *vha)
		}
		}

		if (IS_QLA24XX_TYPE(ha) \|\| IS_QLA25XX(ha)) {
		if (qla24xx_read_fcp_prio_cfg(vha))
		qla_printk(KERN_ERR, ha,
		"Unable to read FCP priority data.\n");
		}

		return (rval);
		}

		@@ -4905,3 +4911,165 @@ qla81xx_update_fw_options(scsi_qla_host_t *vha)
		ha->fw_options[2] \|= BIT_9;
		qla2x00_set_fw_options(vha, ha->fw_options);
		}

		/*
		* qla24xx_get_fcp_prio
		* Gets the fcp cmd priority value for the logged in port.
		* Looks for a match of the port descriptors within
		* each of the fcp prio config entries. If a match is found,
		* the tag (priority) value is returned.
		*
		* Input:
		* ha = adapter block po
		* fcport = port structure pointer.
		*
		* Return:
		* non-zero (if found)
		* 0 (if not found)
		*
		* Context:
		* Kernel context
		*/
		uint8_t
		qla24xx_get_fcp_prio(scsi_qla_host_t vha, fc_port_t fcport)
		{
		int i, entries;
		uint8_t pid_match, wwn_match;
		uint8_t priority;
		uint32_t pid1, pid2;
		uint64_t wwn1, wwn2;
		struct qla_fcp_prio_entry *pri_entry;
		struct qla_hw_data *ha = vha->hw;

		if (!ha->fcp_prio_cfg \|\| !ha->flags.fcp_prio_enabled)
		return 0;

		priority = 0;
		entries = ha->fcp_prio_cfg->num_entries;
		pri_entry = &ha->fcp_prio_cfg->entry[0];

		for (i = 0; i < entries; i++) {
		pid_match = wwn_match = 0;

		if (!(pri_entry->flags & FCP_PRIO_ENTRY_VALID)) {
		pri_entry++;
		continue;
		}

		/* check source pid for a match */
		if (pri_entry->flags & FCP_PRIO_ENTRY_SPID_VALID) {
		pid1 = pri_entry->src_pid & INVALID_PORT_ID;
		pid2 = vha->d_id.b24 & INVALID_PORT_ID;
		if (pid1 == INVALID_PORT_ID)
		pid_match++;
		else if (pid1 == pid2)
		pid_match++;
		}

		/* check destination pid for a match */
		if (pri_entry->flags & FCP_PRIO_ENTRY_DPID_VALID) {
		pid1 = pri_entry->dst_pid & INVALID_PORT_ID;
		pid2 = fcport->d_id.b24 & INVALID_PORT_ID;
		if (pid1 == INVALID_PORT_ID)
		pid_match++;
		else if (pid1 == pid2)
		pid_match++;
		}

		/* check source WWN for a match */
		if (pri_entry->flags & FCP_PRIO_ENTRY_SWWN_VALID) {
		wwn1 = wwn_to_u64(vha->port_name);
		wwn2 = wwn_to_u64(pri_entry->src_wwpn);
		if (wwn2 == (uint64_t)-1)
		wwn_match++;
		else if (wwn1 == wwn2)
		wwn_match++;
		}

		/* check destination WWN for a match */
		if (pri_entry->flags & FCP_PRIO_ENTRY_DWWN_VALID) {
		wwn1 = wwn_to_u64(fcport->port_name);
		wwn2 = wwn_to_u64(pri_entry->dst_wwpn);
		if (wwn2 == (uint64_t)-1)
		wwn_match++;
		else if (wwn1 == wwn2)
		wwn_match++;
		}

		if (pid_match == 2 \|\| wwn_match == 2) {
		/* Found a matching entry */
		if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
		priority = pri_entry->tag;
		break;
		}

		pri_entry++;
		}

		return priority;
		}

		/*
		* qla24xx_update_fcport_fcp_prio
		* Activates fcp priority for the logged in fc port
		*
		* Input:
		* ha = adapter block pointer.
		* fcp = port structure pointer.
		*
		* Return:
		* QLA_SUCCESS or QLA_FUNCTION_FAILED
		*
		* Context:
		* Kernel context.
		*/
		int
		qla24xx_update_fcport_fcp_prio(scsi_qla_host_t ha, fc_port_t fcport)
		{
		int ret;
		uint8_t priority;
		uint16_t mb[5];

		if (atomic_read(&fcport->state) == FCS_UNCONFIGURED \|\|
		fcport->port_type != FCT_TARGET \|\|
		fcport->loop_id == FC_NO_LOOP_ID)
		return QLA_FUNCTION_FAILED;

		priority = qla24xx_get_fcp_prio(ha, fcport);
		ret = qla24xx_set_fcp_prio(ha, fcport->loop_id, priority, mb);
		if (ret == QLA_SUCCESS)
		fcport->fcp_prio = priority;
		else
		DEBUG2(printk(KERN_WARNING
		"scsi(%ld): Unable to activate fcp priority, "
		" ret=0x%x\n", ha->host_no, ret));

		return ret;
		}

		/*
		* qla24xx_update_all_fcp_prio
		* Activates fcp priority for all the logged in ports
		*
		* Input:
		* ha = adapter block pointer.
		*
		* Return:
		* QLA_SUCCESS or QLA_FUNCTION_FAILED
		*
		* Context:
		* Kernel context.
		*/
		int
		qla24xx_update_all_fcp_prio(scsi_qla_host_t *vha)
		{
		int ret;
		fc_port_t *fcport;

		ret = QLA_FUNCTION_FAILED;
		/* We need to set priority for all logged in ports */
		list_for_each_entry(fcport, &vha->vp_fcports, list)
		ret = qla24xx_update_fcport_fcp_prio(vha, fcport);

		return ret;
		}