[SCSI] qla2xxx: Remove port down retry count.

This patch removes the use of the port down retry counter as a mechanism to
update a fcport state. The internal driver counter is a residual carry-over
from pre-FC-transport aware driver inteaction. The ql2xport_down_retry module
parameter and NVRAM set ha->port_down_retry_count remain in order to seed the
fc-host's default dev-loss-tmo.

Signed-off-by: Chad Dupuis <chad.dupuis@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_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 2ff4342..a9ceb39 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1547,6 +1547,10 @@ qla2x00_dev_loss_tmo_callbk(struct fc_rport *rport)
        *((fc_port_t **)rport->dd_data) = NULL;
        spin_unlock_irq(host->host_lock);
 
+       /* Now that the rport has been deleted, set the fcport state to
+          FCS_DEVICE_DEAD */
+       atomic_set(&fcport->state, FCS_DEVICE_DEAD);
+
        if (test_bit(ABORT_ISP_ACTIVE, &fcport->vha->dpc_flags))
                return;
 

diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index e1d3ad4..3a22eff 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -1700,9 +1700,7 @@ typedef struct fc_port {
        atomic_t state;
        uint32_t flags;
 
-       int port_login_retry_count;
        int login_retry;
-       atomic_t port_down_timer;
 
        struct fc_rport *rport, *drport;
        u32 supported_classes;

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index c8d0b12..8c48660 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -2916,20 +2916,12 @@ qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
 void
 qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
 {
-       struct qla_hw_data *ha = vha->hw;
-
        fcport->vha = vha;
        fcport->login_retry = 0;
-       fcport->port_login_retry_count = ha->port_down_retry_count *
-           PORT_RETRY_TIME;
-       atomic_set(&fcport->port_down_timer, ha->port_down_retry_count *
-           PORT_RETRY_TIME);
        fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
 
        qla2x00_iidma_fcport(vha, fcport);
-
        atomic_set(&fcport->state, FCS_ONLINE);
-
        qla2x00_reg_remote_port(vha, fcport);
 }
 

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 800ea92..efbb8e7 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -3547,11 +3547,9 @@ void
 qla2x00_timer(scsi_qla_host_t *vha)
 {
        unsigned long   cpu_flags = 0;
-       fc_port_t       *fcport;
        int             start_dpc = 0;
        int             index;
        srb_t           *sp;
-       int             t;
        uint16_t        w;
        struct qla_hw_data *ha = vha->hw;
        struct req_que *req;
@@ -3567,34 +3565,6 @@ qla2x00_timer(scsi_qla_host_t *vha)
        /* Hardware read to raise pending EEH errors during mailbox waits. */
        if (!pci_channel_offline(ha->pdev))
                pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
-       /*
-        * Ports - Port down timer.
-        *
-        * Whenever, a port is in the LOST state we start decrementing its port
-        * down timer every second until it reaches zero. Once  it reaches zero
-        * the port it marked DEAD.
-        */
-       t = 0;
-       list_for_each_entry(fcport, &vha->vp_fcports, list) {
-               if (fcport->port_type != FCT_TARGET)
-                       continue;
-
-               if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
-
-                       if (atomic_read(&fcport->port_down_timer) == 0)
-                               continue;
-
-                       if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
-                               atomic_set(&fcport->state, FCS_DEVICE_DEAD);
-
-                       DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
-                           "%d remaining\n",
-                           vha->host_no,
-                           t, atomic_read(&fcport->port_down_timer)));
-               }
-               t++;
-       } /* End of for fcport  */
-
 
        /* Loop down handler. */
        if (atomic_read(&vha->loop_down_timer) > 0 &&