diff options
| author | Joe Carnuccio <joe.carnuccio@qlogic.com> | 2013-10-30 03:38:18 -0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-12-19 07:38:58 -0800 |
| commit | db64e9301c067245928bfdbbd9c048cdba087927 (patch) | |
| tree | 06050e3ddaf97d760073bedde26329ab684919e8 /drivers/scsi/qla2xxx/qla_mbx.c | |
| parent | e8f5e95d5a7db8c8f195bc92c0ca8363223a0a9e (diff) | |
[SCSI] qla2xxx: Add BSG interface for read/write serdes register.
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 | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 5957fee119c9..b94511ae0051 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -2800,6 +2800,75 @@ qla2x00_system_error(scsi_qla_host_t *vha) return rval; } +int +qla2x00_write_serdes_word(scsi_qla_host_t *vha, uint16_t addr, uint16_t data) +{ + int rval; + mbx_cmd_t mc; + mbx_cmd_t *mcp = &mc; + + if (!IS_QLA2031(vha->hw)) + return QLA_FUNCTION_FAILED; + + ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1182, + "Entered %s.\n", __func__); + + mcp->mb[0] = MBC_WRITE_SERDES; + mcp->mb[1] = addr; + mcp->mb[2] = data & 0xff; + 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, 0x1183, + "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]); + } else { + ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1184, + "Done %s.\n", __func__); + } + + return rval; +} + +int +qla2x00_read_serdes_word(scsi_qla_host_t *vha, uint16_t addr, uint16_t *data) +{ + int rval; + mbx_cmd_t mc; + mbx_cmd_t *mcp = &mc; + + if (!IS_QLA2031(vha->hw)) + return QLA_FUNCTION_FAILED; + + ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1185, + "Entered %s.\n", __func__); + + mcp->mb[0] = MBC_READ_SERDES; + mcp->mb[1] = addr; + mcp->mb[3] = 0; + mcp->out_mb = MBX_3|MBX_1|MBX_0; + mcp->in_mb = MBX_1|MBX_0; + mcp->tov = MBX_TOV_SECONDS; + mcp->flags = 0; + rval = qla2x00_mailbox_command(vha, mcp); + + *data = mcp->mb[1] & 0xff; + + if (rval != QLA_SUCCESS) { + ql_dbg(ql_dbg_mbx, vha, 0x1186, + "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]); + } else { + ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1187, + "Done %s.\n", __func__); + } + + return rval; +} + /** * qla2x00_set_serdes_params() - * @ha: HA context |