diff options
| author | Nilesh Javali <nilesh.javali@qlogic.com> | 2012-09-20 15:35:10 +0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-09-24 12:41:53 +0400 |
| commit | 320a61de9dc9ca1ed2b69c9a95968e0207c348df (patch) | |
| tree | 3d6af8e69bda7cafeefda42166ec116b357d0a23 /drivers/scsi/qla4xxx/ql4_mbx.c | |
| parent | a9b0347f4dbbe670199f41f7825046333b4044d6 (diff) | |
| download | linux-320a61de9dc9ca1ed2b69c9a95968e0207c348df.tar.xz | |
[SCSI] qla4xxx: IDC implementation for Loopback
Handle IDC Request Notify AEN and post IDC Acknowledgement
while participating in Loopback IDC.
Signed-off-by: Nilesh Javali <nilesh.javali@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_mbx.c')
| -rw-r--r-- | drivers/scsi/qla4xxx/ql4_mbx.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index f31e79b6aa6d..0d3d641f891b 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -1968,3 +1968,36 @@ int qla4_8xxx_set_param(struct scsi_qla_host *ha, int param) exit_set_param: return status; } + +/** + * qla4_83xx_post_idc_ack - post IDC ACK + * @ha: Pointer to host adapter structure. + * + * Posts IDC ACK for IDC Request Notification AEN. + **/ +int qla4_83xx_post_idc_ack(struct scsi_qla_host *ha) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + int status; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_IDC_ACK; + mbox_cmd[1] = ha->idc_info.request_desc; + mbox_cmd[2] = ha->idc_info.info1; + mbox_cmd[3] = ha->idc_info.info2; + mbox_cmd[4] = ha->idc_info.info3; + + status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT, + mbox_cmd, mbox_sts); + if (status == QLA_ERROR) + ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n", __func__, + mbox_sts[0]); + else + DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IDC ACK posted\n", + __func__)); + + return status; +} |