diff options
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_mbx.c')
| -rw-r--r-- | drivers/scsi/qla4xxx/ql4_mbx.c | 132 |
1 files changed, 130 insertions, 2 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index e39895cf48f0..fa1a06ab254a 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -1736,6 +1736,45 @@ int qla4xxx_conn_close_sess_logout(struct scsi_qla_host *ha, return status; } +/** + * qla4_84xx_extend_idc_tmo - Extend IDC Timeout. + * @ha: Pointer to host adapter structure. + * @ext_tmo: idc timeout value + * + * Requests firmware to extend the idc timeout value. + **/ +static int qla4_84xx_extend_idc_tmo(struct scsi_qla_host *ha, uint32_t ext_tmo) +{ + 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)); + ext_tmo &= 0xf; + + mbox_cmd[0] = MBOX_CMD_IDC_TIME_EXTEND; + mbox_cmd[1] = ((ha->idc_info.request_desc & 0xfffff0ff) | + (ext_tmo << 8)); /* new timeout */ + 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_SUCCESS) { + DEBUG2(ql4_printk(KERN_INFO, ha, + "scsi%ld: %s: failed status %04X\n", + ha->host_no, __func__, mbox_sts[0])); + return QLA_ERROR; + } else { + ql4_printk(KERN_INFO, ha, "%s: IDC timeout extended by %d secs\n", + __func__, ext_tmo); + } + + return QLA_SUCCESS; +} + int qla4xxx_disable_acb(struct scsi_qla_host *ha) { uint32_t mbox_cmd[MBOX_REG_COUNT]; @@ -1752,6 +1791,23 @@ int qla4xxx_disable_acb(struct scsi_qla_host *ha) DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_DISABLE_ACB " "failed w/ status %04X %04X %04X", __func__, mbox_sts[0], mbox_sts[1], mbox_sts[2])); + } else { + if (is_qla8042(ha) && + (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE)) { + /* + * Disable ACB mailbox command takes time to complete + * based on the total number of targets connected. + * For 512 targets, it took approximately 5 secs to + * complete. Setting the timeout value to 8, with the 3 + * secs buffer. + */ + qla4_84xx_extend_idc_tmo(ha, IDC_EXTEND_TOV); + if (!wait_for_completion_timeout(&ha->disable_acb_comp, + IDC_EXTEND_TOV * HZ)) { + ql4_printk(KERN_WARNING, ha, "%s: Disable ACB Completion not received\n", + __func__); + } + } } return status; } @@ -2158,8 +2214,80 @@ int qla4_83xx_post_idc_ack(struct scsi_qla_host *ha) 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__)); + ql4_printk(KERN_INFO, ha, "%s: IDC ACK posted\n", __func__); return status; } + +int qla4_84xx_config_acb(struct scsi_qla_host *ha, int acb_config) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + struct addr_ctrl_blk *acb = NULL; + uint32_t acb_len = sizeof(struct addr_ctrl_blk); + int rval = QLA_SUCCESS; + dma_addr_t acb_dma; + + acb = dma_alloc_coherent(&ha->pdev->dev, + sizeof(struct addr_ctrl_blk), + &acb_dma, GFP_KERNEL); + if (!acb) { + ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", __func__); + rval = QLA_ERROR; + goto exit_config_acb; + } + memset(acb, 0, acb_len); + + switch (acb_config) { + case ACB_CONFIG_DISABLE: + rval = qla4xxx_get_acb(ha, acb_dma, 0, acb_len); + if (rval != QLA_SUCCESS) + goto exit_free_acb; + + rval = qla4xxx_disable_acb(ha); + if (rval != QLA_SUCCESS) + goto exit_free_acb; + + if (!ha->saved_acb) + ha->saved_acb = kzalloc(acb_len, GFP_KERNEL); + + if (!ha->saved_acb) { + ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", + __func__); + rval = QLA_ERROR; + goto exit_config_acb; + } + memcpy(ha->saved_acb, acb, acb_len); + break; + case ACB_CONFIG_SET: + + if (!ha->saved_acb) { + ql4_printk(KERN_ERR, ha, "%s: Can't set ACB, Saved ACB not available\n", + __func__); + rval = QLA_ERROR; + goto exit_free_acb; + } + + memcpy(acb, ha->saved_acb, acb_len); + kfree(ha->saved_acb); + ha->saved_acb = NULL; + + rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); + if (rval != QLA_SUCCESS) + goto exit_free_acb; + + break; + default: + ql4_printk(KERN_ERR, ha, "%s: Invalid ACB Configuration\n", + __func__); + } + +exit_free_acb: + dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), acb, + acb_dma); +exit_config_acb: + DEBUG2(ql4_printk(KERN_INFO, ha, + "%s %s\n", __func__, + rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); + return rval; +} |