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| author | Joe Carnuccio <joe.carnuccio@qlogic.com> | 2013-02-08 01:57:48 -0500 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-02-22 12:31:36 +0000 |
| commit | 61e1b269be20f2bd81d0e6a2ccdc42eca3a6f059 (patch) | |
| tree | 2a66ac61225f309d0c96849860e40914c41cea70 /drivers/scsi/qla2xxx/qla_mbx.c | |
| parent | e9454a883b3a26a63c3810f8e4f33c71e218728c (diff) | |
| download | op-kernel-dev-61e1b269be20f2bd81d0e6a2ccdc42eca3a6f059.zip op-kernel-dev-61e1b269be20f2bd81d0e6a2ccdc42eca3a6f059.tar.gz | |
[SCSI] qla2xxx: Do link initialization on get loop id failure.
To avoid continually doing ISP resets when get loop id fails to
obtain the adapter loop id, first try to do a link initialization.
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_mbx.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_mbx.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 92d51fc..550f75a 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -1633,6 +1633,54 @@ qla2x00_get_port_name(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t *name, } /* + * qla24xx_link_initialization + * Issue link initialization mailbox command. + * + * Input: + * ha = adapter block pointer. + * TARGET_QUEUE_LOCK must be released. + * ADAPTER_STATE_LOCK must be released. + * + * Returns: + * qla2x00 local function return status code. + * + * Context: + * Kernel context. + */ +int +qla24xx_link_initialize(scsi_qla_host_t *vha) +{ + int rval; + mbx_cmd_t mc; + mbx_cmd_t *mcp = &mc; + + ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1152, + "Entered %s.\n", __func__); + + if (!IS_FWI2_CAPABLE(vha->hw) || IS_CNA_CAPABLE(vha->hw)) + return QLA_FUNCTION_FAILED; + + mcp->mb[0] = MBC_LINK_INITIALIZATION; + mcp->mb[1] = BIT_6|BIT_4; + mcp->mb[2] = 0; + mcp->mb[3] = 0; + mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0; + mcp->in_mb = MBX_0; + mcp->tov = MBX_TOV_SECONDS; + mcp->flags = 0; + rval = qla2x00_mailbox_command(vha, mcp); + + if (rval != QLA_SUCCESS) { + ql_dbg(ql_dbg_mbx, vha, 0x1153, "Failed=%x.\n", rval); + } else { + ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1154, + "Done %s.\n", __func__); + } + + return rval; +} + +/* * qla2x00_lip_reset * Issue LIP reset mailbox command. * |
