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Commit 13483730 authored Dec 01, 2011 by Mike Christie Committed by James Bottomley Dec 14, 2011

[SCSI] qla4xxx: fix flash/ddb support

With open-iscsi support, target entries persisted in the FLASH were not
login. Added support in the qla4xxx driver to do the login on probe
time to the target entries saved in the FLASH by user.
With this changes upgrade to the new kernel with open-iscsi support in
qla4xxx will ensure users original target entries login on driver load

Signed-off-by: Manish Rangankar <manish.rangankar@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

parent 44f747ff

drivers/scsi/qla4xxx/ql4_def.h

+53 −2

Original line number	Diff line number	Diff line
		@@ -147,7 +147,7 @@
		#define ISCSI_ALIAS_SIZE 32 /* ISCSI Alias name size */
		#define ISCSI_NAME_SIZE 0xE0 /* ISCSI Name size */

		#define QL4_SESS_RECOVERY_TMO 30 /* iSCSI session */
		#define QL4_SESS_RECOVERY_TMO 120 /* iSCSI session */
		/* recovery timeout */

		#define LSDW(x) ((u32)((u64)(x)))
		@@ -173,6 +173,8 @@
		#define ISNS_DEREG_TOV 5
		#define HBA_ONLINE_TOV 30
		#define DISABLE_ACB_TOV 30
		#define IP_CONFIG_TOV 30
		#define LOGIN_TOV 12

		#define MAX_RESET_HA_RETRIES 2

		@@ -240,6 +242,45 @@ struct ddb_entry {

		uint16_t fw_ddb_index; /* DDB firmware index */
		uint32_t fw_ddb_device_state; /* F/W Device State -- see ql4_fw.h */
		uint16_t ddb_type;
		#define FLASH_DDB 0x01

		struct dev_db_entry fw_ddb_entry;
		int (unblock_sess)(struct iscsi_cls_session cls_session);
		int (ddb_change)(struct scsi_qla_host ha, uint32_t fw_ddb_index,
		struct ddb_entry *ddb_entry, uint32_t state);

		/* Driver Re-login */
		unsigned long flags; /* DDB Flags */
		uint16_t default_relogin_timeout; /* Max time to wait for
		* relogin to complete */
		atomic_t retry_relogin_timer; /* Min Time between relogins
		* (4000 only) */
		atomic_t relogin_timer; /* Max Time to wait for
		* relogin to complete */
		atomic_t relogin_retry_count; /* Num of times relogin has been
		* retried */
		uint32_t default_time2wait; /* Default Min time between
		* relogins (+aens) */

		};

		struct qla_ddb_index {
		struct list_head list;
		uint16_t fw_ddb_idx;
		struct dev_db_entry fw_ddb;
		};

		#define DDB_IPADDR_LEN 64

		struct ql4_tuple_ddb {
		int port;
		int tpgt;
		char ip_addr[DDB_IPADDR_LEN];
		char iscsi_name[ISCSI_NAME_SIZE];
		uint16_t options;
		#define DDB_OPT_IPV6 0x0e0e
		#define DDB_OPT_IPV4 0x0f0f
		};

		/*
		@@ -411,7 +452,7 @@ struct scsi_qla_host {
		#define AF_FW_RECOVERY 19 /* 0x00080000 */
		#define AF_EEH_BUSY 20 /* 0x00100000 */
		#define AF_PCI_CHANNEL_IO_PERM_FAILURE 21 /* 0x00200000 */

		#define AF_BUILD_DDB_LIST 22 /* 0x00400000 */
		unsigned long dpc_flags;

		#define DPC_RESET_HA 1 /* 0x00000002 */
		@@ -604,6 +645,7 @@ struct scsi_qla_host {
		uint16_t bootload_minor;
		uint16_t bootload_patch;
		uint16_t bootload_build;
		uint16_t def_timeout; /* Default login timeout */

		uint32_t flash_state;
		#define QLFLASH_WAITING 0
		@@ -623,6 +665,11 @@ struct scsi_qla_host {
		uint16_t iscsi_pci_func_cnt;
		uint8_t model_name[16];
		struct completion disable_acb_comp;
		struct dma_pool *fw_ddb_dma_pool;
		#define DDB_DMA_BLOCK_SIZE 512
		uint16_t pri_ddb_idx;
		uint16_t sec_ddb_idx;
		int is_reset;
		};

		struct ql4_task_data {
		@@ -835,6 +882,10 @@ static inline int ql4xxx_reset_active(struct scsi_qla_host *ha)
		/---------------------------------------------------------------------------/

		/* Defines for qla4xxx_initialize_adapter() and qla4xxx_recover_adapter() */

		#define INIT_ADAPTER 0
		#define RESET_ADAPTER 1

		#define PRESERVE_DDB_LIST 0
		#define REBUILD_DDB_LIST 1

drivers/scsi/qla4xxx/ql4_fw.h

+8 −0

Original line number	Diff line number	Diff line
		@@ -12,6 +12,7 @@
		#define MAX_PRST_DEV_DB_ENTRIES 64
		#define MIN_DISC_DEV_DB_ENTRY MAX_PRST_DEV_DB_ENTRIES
		#define MAX_DEV_DB_ENTRIES 512
		#define MAX_DEV_DB_ENTRIES_40XX 256

		/*************************************************************************
		*
		@@ -604,6 +605,13 @@ struct addr_ctrl_blk {
		uint8_t res14[140]; /* 274-2FF */
		};

		#define IP_ADDR_COUNT 4 /* Total 4 IP address supported in one interface
		* One IPv4, one IPv6 link local and 2 IPv6
		*/

		#define IP_STATE_MASK 0x0F000000
		#define IP_STATE_SHIFT 24

		struct init_fw_ctrl_blk {
		struct addr_ctrl_blk pri;
		/* struct addr_ctrl_blk sec;*/

drivers/scsi/qla4xxx/ql4_glbl.h

+15 −1

Original line number	Diff line number	Diff line
		@@ -13,7 +13,7 @@ struct iscsi_cls_conn;
		int qla4xxx_hw_reset(struct scsi_qla_host *ha);
		int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a);
		int qla4xxx_send_command_to_isp(struct scsi_qla_host ha, struct srb srb);
		int qla4xxx_initialize_adapter(struct scsi_qla_host *ha);
		int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset);
		int qla4xxx_soft_reset(struct scsi_qla_host *ha);
		irqreturn_t qla4xxx_intr_handler(int irq, void *dev_id);

		@@ -153,10 +153,13 @@ int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
		uint32_t *mbx_sts);
		int qla4xxx_clear_ddb_entry(struct scsi_qla_host *ha, uint32_t fw_ddb_index);
		int qla4xxx_send_passthru0(struct iscsi_task *task);
		void qla4xxx_free_ddb_index(struct scsi_qla_host *ha);
		int qla4xxx_get_mgmt_data(struct scsi_qla_host *ha, uint16_t fw_ddb_index,
		uint16_t stats_size, dma_addr_t stats_dma);
		void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
		struct ddb_entry *ddb_entry);
		void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
		struct ddb_entry *ddb_entry);
		int qla4xxx_bootdb_by_index(struct scsi_qla_host *ha,
		struct dev_db_entry *fw_ddb_entry,
		dma_addr_t fw_ddb_entry_dma, uint16_t ddb_index);
		@@ -169,11 +172,22 @@ int qla4xxx_set_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma,
		int qla4xxx_restore_factory_defaults(struct scsi_qla_host *ha,
		uint32_t region, uint32_t field0,
		uint32_t field1);
		int qla4xxx_get_ddb_index(struct scsi_qla_host ha, uint16_t ddb_index);
		void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session);
		int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session);
		int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session);
		int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
		struct ddb_entry *ddb_entry, uint32_t state);
		int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
		struct ddb_entry *ddb_entry, uint32_t state);
		void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset);

		/* BSG Functions */
		int qla4xxx_bsg_request(struct bsg_job *bsg_job);
		int qla4xxx_process_vendor_specific(struct bsg_job *bsg_job);

		void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry);

		extern int ql4xextended_error_logging;
		extern int ql4xdontresethba;
		extern int ql4xenablemsix;

drivers/scsi/qla4xxx/ql4_init.c

+200 −39

Original line number	Diff line number	Diff line
		@@ -773,14 +773,14 @@ int qla4xxx_start_firmware(struct scsi_qla_host *ha)
		* be freed so that when login happens from user space there are free DDB
		* indices available.
		**/
		static void qla4xxx_free_ddb_index(struct scsi_qla_host *ha)
		void qla4xxx_free_ddb_index(struct scsi_qla_host *ha)
		{
		int max_ddbs;
		int ret;
		uint32_t idx = 0, next_idx = 0;
		uint32_t state = 0, conn_err = 0;

		max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
		max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
		MAX_DEV_DB_ENTRIES;

		for (idx = 0; idx < max_ddbs; idx = next_idx) {
		@@ -804,7 +804,6 @@ static void qla4xxx_free_ddb_index(struct scsi_qla_host *ha)
		}
		}


		/**
		* qla4xxx_initialize_adapter - initiailizes hba
		* @ha: Pointer to host adapter structure.
		@@ -812,7 +811,7 @@ static void qla4xxx_free_ddb_index(struct scsi_qla_host *ha)
		* This routine parforms all of the steps necessary to initialize the adapter.
		*
		**/
		int qla4xxx_initialize_adapter(struct scsi_qla_host *ha)
		int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset)
		{
		int status = QLA_ERROR;

		@@ -840,7 +839,8 @@ int qla4xxx_initialize_adapter(struct scsi_qla_host *ha)
		if (status == QLA_ERROR)
		goto exit_init_hba;

		qla4xxx_free_ddb_index(ha);
		if (is_reset == RESET_ADAPTER)
		qla4xxx_build_ddb_list(ha, is_reset);

		set_bit(AF_ONLINE, &ha->flags);
		exit_init_hba:
		@@ -855,38 +855,12 @@ exit_init_hba:
		return status;
		}

		/**
		* qla4xxx_process_ddb_changed - process ddb state change
		* @ha - Pointer to host adapter structure.
		* @fw_ddb_index - Firmware's device database index
		* @state - Device state
		*
		* This routine processes a Decive Database Changed AEN Event.
		**/
		int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
		uint32_t state, uint32_t conn_err)
		int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
		struct ddb_entry *ddb_entry, uint32_t state)
		{
		struct ddb_entry * ddb_entry;
		uint32_t old_fw_ddb_device_state;
		int status = QLA_ERROR;

		/* check for out of range index */
		if (fw_ddb_index >= MAX_DDB_ENTRIES)
		goto exit_ddb_event;

		/* Get the corresponging ddb entry */
		ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
		/* Device does not currently exist in our database. */
		if (ddb_entry == NULL) {
		ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n",
		__func__, fw_ddb_index);

		if (state == DDB_DS_NO_CONNECTION_ACTIVE)
		clear_bit(fw_ddb_index, ha->ddb_idx_map);

		goto exit_ddb_event;
		}

		old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
		DEBUG2(ql4_printk(KERN_INFO, ha,
		"%s: DDB - old state = 0x%x, new state = 0x%x for "
		@@ -900,9 +874,7 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
		switch (state) {
		case DDB_DS_SESSION_ACTIVE:
		case DDB_DS_DISCOVERY:
		iscsi_conn_start(ddb_entry->conn);
		iscsi_conn_login_event(ddb_entry->conn,
		ISCSI_CONN_STATE_LOGGED_IN);
		ddb_entry->unblock_sess(ddb_entry->sess);
		qla4xxx_update_session_conn_param(ha, ddb_entry);
		status = QLA_SUCCESS;
		break;
		@@ -936,9 +908,7 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
		switch (state) {
		case DDB_DS_SESSION_ACTIVE:
		case DDB_DS_DISCOVERY:
		iscsi_conn_start(ddb_entry->conn);
		iscsi_conn_login_event(ddb_entry->conn,
		ISCSI_CONN_STATE_LOGGED_IN);
		ddb_entry->unblock_sess(ddb_entry->sess);
		qla4xxx_update_session_conn_param(ha, ddb_entry);
		status = QLA_SUCCESS;
		break;
		@@ -954,7 +924,198 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
		__func__));
		break;
		}
		return status;
		}

		void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry)
		{
		/*
		* This triggers a relogin. After the relogin_timer
		* expires, the relogin gets scheduled. We must wait a
		* minimum amount of time since receiving an 0x8014 AEN
		* with failed device_state or a logout response before
		* we can issue another relogin.
		*
		* Firmware pads this timeout: (time2wait +1).
		* Driver retry to login should be longer than F/W.
		* Otherwise F/W will fail
		* set_ddb() mbx cmd with 0x4005 since it still
		* counting down its time2wait.
		*/
		atomic_set(&ddb_entry->relogin_timer, 0);
		atomic_set(&ddb_entry->retry_relogin_timer,
		ddb_entry->default_time2wait + 4);

		}

		int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
		struct ddb_entry *ddb_entry, uint32_t state)
		{
		uint32_t old_fw_ddb_device_state;
		int status = QLA_ERROR;

		old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
		DEBUG2(ql4_printk(KERN_INFO, ha,
		"%s: DDB - old state = 0x%x, new state = 0x%x for "
		"index [%d]\n", __func__,
		ddb_entry->fw_ddb_device_state, state, fw_ddb_index));

		ddb_entry->fw_ddb_device_state = state;

		switch (old_fw_ddb_device_state) {
		case DDB_DS_LOGIN_IN_PROCESS:
		case DDB_DS_NO_CONNECTION_ACTIVE:
		switch (state) {
		case DDB_DS_SESSION_ACTIVE:
		ddb_entry->unblock_sess(ddb_entry->sess);
		qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
		status = QLA_SUCCESS;
		break;
		case DDB_DS_SESSION_FAILED:
		iscsi_block_session(ddb_entry->sess);
		if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
		qla4xxx_arm_relogin_timer(ddb_entry);
		status = QLA_SUCCESS;
		break;
		}
		break;
		case DDB_DS_SESSION_ACTIVE:
		switch (state) {
		case DDB_DS_SESSION_FAILED:
		iscsi_block_session(ddb_entry->sess);
		if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
		qla4xxx_arm_relogin_timer(ddb_entry);
		status = QLA_SUCCESS;
		break;
		}
		break;
		case DDB_DS_SESSION_FAILED:
		switch (state) {
		case DDB_DS_SESSION_ACTIVE:
		ddb_entry->unblock_sess(ddb_entry->sess);
		qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
		status = QLA_SUCCESS;
		break;
		case DDB_DS_SESSION_FAILED:
		if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
		qla4xxx_arm_relogin_timer(ddb_entry);
		status = QLA_SUCCESS;
		break;
		}
		break;
		default:
		DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",
		__func__));
		break;
		}
		return status;
		}

		/**
		* qla4xxx_process_ddb_changed - process ddb state change
		* @ha - Pointer to host adapter structure.
		* @fw_ddb_index - Firmware's device database index
		* @state - Device state
		*
		* This routine processes a Decive Database Changed AEN Event.
		**/
		int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha,
		uint32_t fw_ddb_index,
		uint32_t state, uint32_t conn_err)
		{
		struct ddb_entry *ddb_entry;
		int status = QLA_ERROR;

		/* check for out of range index */
		if (fw_ddb_index >= MAX_DDB_ENTRIES)
		goto exit_ddb_event;

		/* Get the corresponging ddb entry */
		ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
		/* Device does not currently exist in our database. */
		if (ddb_entry == NULL) {
		ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n",
		__func__, fw_ddb_index);

		if (state == DDB_DS_NO_CONNECTION_ACTIVE)
		clear_bit(fw_ddb_index, ha->ddb_idx_map);

		goto exit_ddb_event;
		}

		ddb_entry->ddb_change(ha, fw_ddb_index, ddb_entry, state);

		exit_ddb_event:
		return status;
		}

		/**
		* qla4xxx_login_flash_ddb - Login to target (DDB)
		* @cls_session: Pointer to the session to login
		*
		* This routine logins to the target.
		* Issues setddb and conn open mbx
		**/
		void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session)
		{
		struct iscsi_session *sess;
		struct ddb_entry *ddb_entry;
		struct scsi_qla_host *ha;
		struct dev_db_entry *fw_ddb_entry = NULL;
		dma_addr_t fw_ddb_dma;
		uint32_t mbx_sts = 0;
		int ret;

		sess = cls_session->dd_data;
		ddb_entry = sess->dd_data;
		ha = ddb_entry->ha;

		if (!test_bit(AF_LINK_UP, &ha->flags))
		return;

		if (ddb_entry->ddb_type != FLASH_DDB) {
		DEBUG2(ql4_printk(KERN_INFO, ha,
		"Skipping login to non FLASH DB"));
		goto exit_login;
		}

		fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
		&fw_ddb_dma);
		if (fw_ddb_entry == NULL) {
		DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
		goto exit_login;
		}

		if (ddb_entry->fw_ddb_index == INVALID_ENTRY) {
		ret = qla4xxx_get_ddb_index(ha, &ddb_entry->fw_ddb_index);
		if (ret == QLA_ERROR)
		goto exit_login;

		ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
		ha->tot_ddbs++;
		}

		memcpy(fw_ddb_entry, &ddb_entry->fw_ddb_entry,
		sizeof(struct dev_db_entry));
		ddb_entry->sess->target_id = ddb_entry->fw_ddb_index;

		ret = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index,
		fw_ddb_dma, &mbx_sts);
		if (ret == QLA_ERROR) {
		DEBUG2(ql4_printk(KERN_ERR, ha, "Set DDB failed\n"));
		goto exit_login;
		}

		ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
		ret = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
		if (ret == QLA_ERROR) {
		ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
		sess->targetname);
		goto exit_login;
		}

		exit_login:
		if (fw_ddb_entry)
		dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
		}

drivers/scsi/qla4xxx/ql4_mbx.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -41,6 +41,16 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
		return status;
		}

		if (is_qla40XX(ha)) {
		if (test_bit(AF_HA_REMOVAL, &ha->flags)) {
		DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: "
		"prematurely completing mbx cmd as "
		"adapter removal detected\n",
		ha->host_no, __func__));
		return status;
		}
		}

		if (is_qla8022(ha)) {
		if (test_bit(AF_FW_RECOVERY, &ha->flags)) {
		DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: "
		@@ -413,6 +423,7 @@ qla4xxx_update_local_ifcb(struct scsi_qla_host *ha,
		memcpy(ha->name_string, init_fw_cb->iscsi_name,
		min(sizeof(ha->name_string),
		sizeof(init_fw_cb->iscsi_name)));
		ha->def_timeout = le16_to_cpu(init_fw_cb->def_timeout);
		/*memcpy(ha->alias, init_fw_cb->Alias,
		min(sizeof(ha->alias), sizeof(init_fw_cb->Alias)));*/

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