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path: root/drivers/scsi/libfc/fc_lport.c
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Diffstat (limited to 'drivers/scsi/libfc/fc_lport.c')
-rw-r--r--drivers/scsi/libfc/fc_lport.c173
1 files changed, 75 insertions, 98 deletions
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index 0b9bdb1fb807..2ae50a1188e6 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -139,7 +139,7 @@ static int fc_frame_drop(struct fc_lport *lport, struct fc_frame *fp)
}
/**
- * fc_lport_rport_callback - Event handler for rport events
+ * fc_lport_rport_callback() - Event handler for rport events
* @lport: The lport which is receiving the event
* @rport: The rport which the event has occured on
* @event: The event that occured
@@ -195,7 +195,7 @@ static void fc_lport_rport_callback(struct fc_lport *lport,
}
/**
- * fc_lport_state - Return a string which represents the lport's state
+ * fc_lport_state() - Return a string which represents the lport's state
* @lport: The lport whose state is to converted to a string
*/
static const char *fc_lport_state(struct fc_lport *lport)
@@ -209,7 +209,7 @@ static const char *fc_lport_state(struct fc_lport *lport)
}
/**
- * fc_lport_ptp_setup - Create an rport for point-to-point mode
+ * fc_lport_ptp_setup() - Create an rport for point-to-point mode
* @lport: The lport to attach the ptp rport to
* @fid: The FID of the ptp rport
* @remote_wwpn: The WWPN of the ptp rport
@@ -232,7 +232,7 @@ static void fc_lport_ptp_setup(struct fc_lport *lport,
lport->ptp_rp = NULL;
}
- lport->ptp_rp = fc_rport_rogue_create(&dp);
+ lport->ptp_rp = lport->tt.rport_create(&dp);
lport->tt.rport_login(lport->ptp_rp);
@@ -250,7 +250,7 @@ void fc_get_host_port_state(struct Scsi_Host *shost)
{
struct fc_lport *lp = shost_priv(shost);
- if ((lp->link_status & FC_LINK_UP) == FC_LINK_UP)
+ if (lp->link_up)
fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
else
fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
@@ -351,7 +351,7 @@ static void fc_lport_add_fc4_type(struct fc_lport *lport, enum fc_fh_type type)
}
/**
- * fc_lport_recv_rlir_req - Handle received Registered Link Incident Report.
+ * fc_lport_recv_rlir_req() - Handle received Registered Link Incident Report.
* @lport: Fibre Channel local port recieving the RLIR
* @sp: current sequence in the RLIR exchange
* @fp: RLIR request frame
@@ -370,7 +370,7 @@ static void fc_lport_recv_rlir_req(struct fc_seq *sp, struct fc_frame *fp,
}
/**
- * fc_lport_recv_echo_req - Handle received ECHO request
+ * fc_lport_recv_echo_req() - Handle received ECHO request
* @lport: Fibre Channel local port recieving the ECHO
* @sp: current sequence in the ECHO exchange
* @fp: ECHO request frame
@@ -412,7 +412,7 @@ static void fc_lport_recv_echo_req(struct fc_seq *sp, struct fc_frame *in_fp,
}
/**
- * fc_lport_recv_echo_req - Handle received Request Node ID data request
+ * fc_lport_recv_echo_req() - Handle received Request Node ID data request
* @lport: Fibre Channel local port recieving the RNID
* @sp: current sequence in the RNID exchange
* @fp: RNID request frame
@@ -479,7 +479,7 @@ static void fc_lport_recv_rnid_req(struct fc_seq *sp, struct fc_frame *in_fp,
}
/**
- * fc_lport_recv_adisc_req - Handle received Address Discovery Request
+ * fc_lport_recv_adisc_req() - Handle received Address Discovery Request
* @lport: Fibre Channel local port recieving the ADISC
* @sp: current sequence in the ADISC exchange
* @fp: ADISC request frame
@@ -529,7 +529,7 @@ static void fc_lport_recv_adisc_req(struct fc_seq *sp, struct fc_frame *in_fp,
}
/**
- * fc_lport_recv_logo_req - Handle received fabric LOGO request
+ * fc_lport_recv_logo_req() - Handle received fabric LOGO request
* @lport: Fibre Channel local port recieving the LOGO
* @sp: current sequence in the LOGO exchange
* @fp: LOGO request frame
@@ -546,7 +546,7 @@ static void fc_lport_recv_logo_req(struct fc_seq *sp, struct fc_frame *fp,
}
/**
- * fc_fabric_login - Start the lport state machine
+ * fc_fabric_login() - Start the lport state machine
* @lport: The lport that should log into the fabric
*
* Locking Note: This function should not be called
@@ -568,7 +568,7 @@ int fc_fabric_login(struct fc_lport *lport)
EXPORT_SYMBOL(fc_fabric_login);
/**
- * fc_linkup - Handler for transport linkup events
+ * fc_linkup() - Handler for transport linkup events
* @lport: The lport whose link is up
*/
void fc_linkup(struct fc_lport *lport)
@@ -577,8 +577,8 @@ void fc_linkup(struct fc_lport *lport)
fc_host_port_id(lport->host));
mutex_lock(&lport->lp_mutex);
- if ((lport->link_status & FC_LINK_UP) != FC_LINK_UP) {
- lport->link_status |= FC_LINK_UP;
+ if (!lport->link_up) {
+ lport->link_up = 1;
if (lport->state == LPORT_ST_RESET)
fc_lport_enter_flogi(lport);
@@ -588,7 +588,7 @@ void fc_linkup(struct fc_lport *lport)
EXPORT_SYMBOL(fc_linkup);
/**
- * fc_linkdown - Handler for transport linkdown events
+ * fc_linkdown() - Handler for transport linkdown events
* @lport: The lport whose link is down
*/
void fc_linkdown(struct fc_lport *lport)
@@ -597,8 +597,8 @@ void fc_linkdown(struct fc_lport *lport)
FC_DEBUG_LPORT("Link is down for port (%6x)\n",
fc_host_port_id(lport->host));
- if ((lport->link_status & FC_LINK_UP) == FC_LINK_UP) {
- lport->link_status &= ~(FC_LINK_UP);
+ if (lport->link_up) {
+ lport->link_up = 0;
fc_lport_enter_reset(lport);
lport->tt.fcp_cleanup(lport);
}
@@ -607,48 +607,25 @@ void fc_linkdown(struct fc_lport *lport)
EXPORT_SYMBOL(fc_linkdown);
/**
- * fc_pause - Pause the flow of frames
- * @lport: The lport to be paused
- */
-void fc_pause(struct fc_lport *lport)
-{
- mutex_lock(&lport->lp_mutex);
- lport->link_status |= FC_PAUSE;
- mutex_unlock(&lport->lp_mutex);
-}
-EXPORT_SYMBOL(fc_pause);
-
-/**
- * fc_unpause - Unpause the flow of frames
- * @lport: The lport to be unpaused
- */
-void fc_unpause(struct fc_lport *lport)
-{
- mutex_lock(&lport->lp_mutex);
- lport->link_status &= ~(FC_PAUSE);
- mutex_unlock(&lport->lp_mutex);
-}
-EXPORT_SYMBOL(fc_unpause);
-
-/**
- * fc_fabric_logoff - Logout of the fabric
+ * fc_fabric_logoff() - Logout of the fabric
* @lport: fc_lport pointer to logoff the fabric
*
* Return value:
* 0 for success, -1 for failure
- **/
+ */
int fc_fabric_logoff(struct fc_lport *lport)
{
lport->tt.disc_stop_final(lport);
mutex_lock(&lport->lp_mutex);
fc_lport_enter_logo(lport);
mutex_unlock(&lport->lp_mutex);
+ cancel_delayed_work_sync(&lport->retry_work);
return 0;
}
EXPORT_SYMBOL(fc_fabric_logoff);
/**
- * fc_lport_destroy - unregister a fc_lport
+ * fc_lport_destroy() - unregister a fc_lport
* @lport: fc_lport pointer to unregister
*
* Return value:
@@ -658,26 +635,25 @@ EXPORT_SYMBOL(fc_fabric_logoff);
* clean-up all the allocated memory
* and free up other system resources.
*
- **/
+ */
int fc_lport_destroy(struct fc_lport *lport)
{
lport->tt.frame_send = fc_frame_drop;
lport->tt.fcp_abort_io(lport);
- lport->tt.exch_mgr_reset(lport->emp, 0, 0);
+ lport->tt.exch_mgr_reset(lport, 0, 0);
return 0;
}
EXPORT_SYMBOL(fc_lport_destroy);
/**
- * fc_set_mfs - sets up the mfs for the corresponding fc_lport
+ * fc_set_mfs() - sets up the mfs for the corresponding fc_lport
* @lport: fc_lport pointer to unregister
* @mfs: the new mfs for fc_lport
*
* Set mfs for the given fc_lport to the new mfs.
*
* Return: 0 for success
- *
- **/
+ */
int fc_set_mfs(struct fc_lport *lport, u32 mfs)
{
unsigned int old_mfs;
@@ -706,7 +682,7 @@ int fc_set_mfs(struct fc_lport *lport, u32 mfs)
EXPORT_SYMBOL(fc_set_mfs);
/**
- * fc_lport_disc_callback - Callback for discovery events
+ * fc_lport_disc_callback() - Callback for discovery events
* @lport: FC local port
* @event: The discovery event
*/
@@ -731,7 +707,7 @@ void fc_lport_disc_callback(struct fc_lport *lport, enum fc_disc_event event)
}
/**
- * fc_rport_enter_ready - Enter the ready state and start discovery
+ * fc_rport_enter_ready() - Enter the ready state and start discovery
* @lport: Fibre Channel local port that is ready
*
* Locking Note: The lport lock is expected to be held before calling
@@ -748,7 +724,7 @@ static void fc_lport_enter_ready(struct fc_lport *lport)
}
/**
- * fc_lport_recv_flogi_req - Receive a FLOGI request
+ * fc_lport_recv_flogi_req() - Receive a FLOGI request
* @sp_in: The sequence the FLOGI is on
* @rx_fp: The frame the FLOGI is in
* @lport: The lport that recieved the request
@@ -838,7 +814,7 @@ out:
}
/**
- * fc_lport_recv_req - The generic lport request handler
+ * fc_lport_recv_req() - The generic lport request handler
* @lport: The lport that received the request
* @sp: The sequence the request is on
* @fp: The frame the request is in
@@ -934,7 +910,7 @@ static void fc_lport_recv_req(struct fc_lport *lport, struct fc_seq *sp,
}
/**
- * fc_lport_reset - Reset an lport
+ * fc_lport_reset() - Reset an lport
* @lport: The lport which should be reset
*
* Locking Note: This functions should not be called with the
@@ -942,6 +918,7 @@ static void fc_lport_recv_req(struct fc_lport *lport, struct fc_seq *sp,
*/
int fc_lport_reset(struct fc_lport *lport)
{
+ cancel_delayed_work_sync(&lport->retry_work);
mutex_lock(&lport->lp_mutex);
fc_lport_enter_reset(lport);
mutex_unlock(&lport->lp_mutex);
@@ -950,7 +927,7 @@ int fc_lport_reset(struct fc_lport *lport)
EXPORT_SYMBOL(fc_lport_reset);
/**
- * fc_rport_enter_reset - Reset the local port
+ * fc_rport_enter_reset() - Reset the local port
* @lport: Fibre Channel local port to be reset
*
* Locking Note: The lport lock is expected to be held before calling
@@ -973,16 +950,16 @@ static void fc_lport_enter_reset(struct fc_lport *lport)
lport->tt.disc_stop(lport);
- lport->tt.exch_mgr_reset(lport->emp, 0, 0);
+ lport->tt.exch_mgr_reset(lport, 0, 0);
fc_host_fabric_name(lport->host) = 0;
fc_host_port_id(lport->host) = 0;
- if ((lport->link_status & FC_LINK_UP) == FC_LINK_UP)
+ if (lport->link_up)
fc_lport_enter_flogi(lport);
}
/**
- * fc_lport_error - Handler for any errors
+ * fc_lport_error() - Handler for any errors
* @lport: The fc_lport object
* @fp: The frame pointer
*
@@ -1029,8 +1006,8 @@ static void fc_lport_error(struct fc_lport *lport, struct fc_frame *fp)
}
/**
- * fc_lport_rft_id_resp - Handle response to Register Fibre
- * Channel Types by ID (RPN_ID) request
+ * fc_lport_rft_id_resp() - Handle response to Register Fibre
+ * Channel Types by ID (RPN_ID) request
* @sp: current sequence in RPN_ID exchange
* @fp: response frame
* @lp_arg: Fibre Channel host port instance
@@ -1053,17 +1030,17 @@ static void fc_lport_rft_id_resp(struct fc_seq *sp, struct fc_frame *fp,
FC_DEBUG_LPORT("Received a RFT_ID response\n");
+ if (IS_ERR(fp)) {
+ fc_lport_error(lport, fp);
+ goto err;
+ }
+
if (lport->state != LPORT_ST_RFT_ID) {
FC_DBG("Received a RFT_ID response, but in state %s\n",
fc_lport_state(lport));
goto out;
}
- if (IS_ERR(fp)) {
- fc_lport_error(lport, fp);
- goto err;
- }
-
fh = fc_frame_header_get(fp);
ct = fc_frame_payload_get(fp, sizeof(*ct));
@@ -1081,8 +1058,8 @@ err:
}
/**
- * fc_lport_rpn_id_resp - Handle response to Register Port
- * Name by ID (RPN_ID) request
+ * fc_lport_rpn_id_resp() - Handle response to Register Port
+ * Name by ID (RPN_ID) request
* @sp: current sequence in RPN_ID exchange
* @fp: response frame
* @lp_arg: Fibre Channel host port instance
@@ -1105,17 +1082,17 @@ static void fc_lport_rpn_id_resp(struct fc_seq *sp, struct fc_frame *fp,
FC_DEBUG_LPORT("Received a RPN_ID response\n");
+ if (IS_ERR(fp)) {
+ fc_lport_error(lport, fp);
+ goto err;
+ }
+
if (lport->state != LPORT_ST_RPN_ID) {
FC_DBG("Received a RPN_ID response, but in state %s\n",
fc_lport_state(lport));
goto out;
}
- if (IS_ERR(fp)) {
- fc_lport_error(lport, fp);
- goto err;
- }
-
fh = fc_frame_header_get(fp);
ct = fc_frame_payload_get(fp, sizeof(*ct));
if (fh && ct && fh->fh_type == FC_TYPE_CT &&
@@ -1133,7 +1110,7 @@ err:
}
/**
- * fc_lport_scr_resp - Handle response to State Change Register (SCR) request
+ * fc_lport_scr_resp() - Handle response to State Change Register (SCR) request
* @sp: current sequence in SCR exchange
* @fp: response frame
* @lp_arg: Fibre Channel lport port instance that sent the registration request
@@ -1155,17 +1132,17 @@ static void fc_lport_scr_resp(struct fc_seq *sp, struct fc_frame *fp,
FC_DEBUG_LPORT("Received a SCR response\n");
+ if (IS_ERR(fp)) {
+ fc_lport_error(lport, fp);
+ goto err;
+ }
+
if (lport->state != LPORT_ST_SCR) {
FC_DBG("Received a SCR response, but in state %s\n",
fc_lport_state(lport));
goto out;
}
- if (IS_ERR(fp)) {
- fc_lport_error(lport, fp);
- goto err;
- }
-
op = fc_frame_payload_op(fp);
if (op == ELS_LS_ACC)
fc_lport_enter_ready(lport);
@@ -1179,7 +1156,7 @@ err:
}
/**
- * fc_lport_enter_scr - Send a State Change Register (SCR) request
+ * fc_lport_enter_scr() - Send a State Change Register (SCR) request
* @lport: Fibre Channel local port to register for state changes
*
* Locking Note: The lport lock is expected to be held before calling
@@ -1206,7 +1183,7 @@ static void fc_lport_enter_scr(struct fc_lport *lport)
}
/**
- * fc_lport_enter_rft_id - Register FC4-types with the name server
+ * fc_lport_enter_rft_id() - Register FC4-types with the name server
* @lport: Fibre Channel local port to register
*
* Locking Note: The lport lock is expected to be held before calling
@@ -1248,7 +1225,7 @@ static void fc_lport_enter_rft_id(struct fc_lport *lport)
}
/**
- * fc_rport_enter_rft_id - Register port name with the name server
+ * fc_rport_enter_rft_id() - Register port name with the name server
* @lport: Fibre Channel local port to register
*
* Locking Note: The lport lock is expected to be held before calling
@@ -1281,7 +1258,7 @@ static struct fc_rport_operations fc_lport_rport_ops = {
};
/**
- * fc_rport_enter_dns - Create a rport to the name server
+ * fc_rport_enter_dns() - Create a rport to the name server
* @lport: Fibre Channel local port requesting a rport for the name server
*
* Locking Note: The lport lock is expected to be held before calling
@@ -1304,7 +1281,7 @@ static void fc_lport_enter_dns(struct fc_lport *lport)
fc_lport_state_enter(lport, LPORT_ST_DNS);
- rport = fc_rport_rogue_create(&dp);
+ rport = lport->tt.rport_create(&dp);
if (!rport)
goto err;
@@ -1318,7 +1295,7 @@ err:
}
/**
- * fc_lport_timeout - Handler for the retry_work timer.
+ * fc_lport_timeout() - Handler for the retry_work timer.
* @work: The work struct of the fc_lport
*/
static void fc_lport_timeout(struct work_struct *work)
@@ -1359,7 +1336,7 @@ static void fc_lport_timeout(struct work_struct *work)
}
/**
- * fc_lport_logo_resp - Handle response to LOGO request
+ * fc_lport_logo_resp() - Handle response to LOGO request
* @sp: current sequence in LOGO exchange
* @fp: response frame
* @lp_arg: Fibre Channel lport port instance that sent the LOGO request
@@ -1381,17 +1358,17 @@ static void fc_lport_logo_resp(struct fc_seq *sp, struct fc_frame *fp,
FC_DEBUG_LPORT("Received a LOGO response\n");
+ if (IS_ERR(fp)) {
+ fc_lport_error(lport, fp);
+ goto err;
+ }
+
if (lport->state != LPORT_ST_LOGO) {
FC_DBG("Received a LOGO response, but in state %s\n",
fc_lport_state(lport));
goto out;
}
- if (IS_ERR(fp)) {
- fc_lport_error(lport, fp);
- goto err;
- }
-
op = fc_frame_payload_op(fp);
if (op == ELS_LS_ACC)
fc_lport_enter_reset(lport);
@@ -1405,7 +1382,7 @@ err:
}
/**
- * fc_rport_enter_logo - Logout of the fabric
+ * fc_rport_enter_logo() - Logout of the fabric
* @lport: Fibre Channel local port to be logged out
*
* Locking Note: The lport lock is expected to be held before calling
@@ -1437,7 +1414,7 @@ static void fc_lport_enter_logo(struct fc_lport *lport)
}
/**
- * fc_lport_flogi_resp - Handle response to FLOGI request
+ * fc_lport_flogi_resp() - Handle response to FLOGI request
* @sp: current sequence in FLOGI exchange
* @fp: response frame
* @lp_arg: Fibre Channel lport port instance that sent the FLOGI request
@@ -1465,17 +1442,17 @@ static void fc_lport_flogi_resp(struct fc_seq *sp, struct fc_frame *fp,
FC_DEBUG_LPORT("Received a FLOGI response\n");
+ if (IS_ERR(fp)) {
+ fc_lport_error(lport, fp);
+ goto err;
+ }
+
if (lport->state != LPORT_ST_FLOGI) {
FC_DBG("Received a FLOGI response, but in state %s\n",
fc_lport_state(lport));
goto out;
}
- if (IS_ERR(fp)) {
- fc_lport_error(lport, fp);
- goto err;
- }
-
fh = fc_frame_header_get(fp);
did = ntoh24(fh->fh_d_id);
if (fc_frame_payload_op(fp) == ELS_LS_ACC && did != 0) {
@@ -1532,7 +1509,7 @@ err:
}
/**
- * fc_rport_enter_flogi - Send a FLOGI request to the fabric manager
+ * fc_rport_enter_flogi() - Send a FLOGI request to the fabric manager
* @lport: Fibre Channel local port to be logged in to the fabric
*
* Locking Note: The lport lock is expected to be held before calling
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 11:34:02 +0000