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| author | Sawan Chandak <sawan.chandak@qlogic.com> | 2015-04-09 22:00:06 +0300 |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-04-10 18:42:58 +0300 |
| commit | ded6411fd88267510dcee6d6c29cfd0bd82d4f0e (patch) | |
| tree | 3dd1aa9a733cdb0d71bbd2bce5b20d95275d7e4b /drivers/scsi/qla2xxx/qla_mid.c | |
| parent | e8fb1250ba5898c6c53e0063bbdcc9cadd580797 (diff) | |
| download | linux-ded6411fd88267510dcee6d6c29cfd0bd82d4f0e.tar.xz | |
qla2xxx: Fix virtual port configuration, when switch port is disabled/enabled.
On some vendor switches, when switch port is toggled (down /up),
then in some condition driver tries to configure virtual port,
before FW is actually in ready state to process any commands on wire.
At this time, configuring virtual port can fail. Add fix in driver
to make driver wait, for FW to be ready state before
Signed-off-by: Sawan Chandak <sawan.chandak@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_mid.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_mid.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c index 5c2e0317f1c0..8f458efc125a 100644 --- a/drivers/scsi/qla2xxx/qla_mid.c +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -306,19 +306,25 @@ qla2x00_vp_abort_isp(scsi_qla_host_t *vha) static int qla2x00_do_dpc_vp(scsi_qla_host_t *vha) { + struct qla_hw_data *ha = vha->hw; + scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); + ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012, "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags); qla2x00_do_work(vha); - if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) { - /* VP acquired. complete port configuration */ - ql_dbg(ql_dbg_dpc, vha, 0x4014, - "Configure VP scheduled.\n"); - qla24xx_configure_vp(vha); - ql_dbg(ql_dbg_dpc, vha, 0x4015, - "Configure VP end.\n"); - return 0; + /* Check if Fw is ready to configure VP first */ + if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) { + if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) { + /* VP acquired. complete port configuration */ + ql_dbg(ql_dbg_dpc, vha, 0x4014, + "Configure VP scheduled.\n"); + qla24xx_configure_vp(vha); + ql_dbg(ql_dbg_dpc, vha, 0x4015, + "Configure VP end.\n"); + return 0; + } } if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) { |