From ac09c349080008fdd54a15616a1b14771772d867 Mon Sep 17 00:00:00 2001 From: Brian King Date: Thu, 26 Apr 2007 16:00:16 -0500 Subject: [SCSI] ipr: Enable multi-initator RAID support Enables multi-initiator support on ipr RAID adapters that support it. Signed-off-by: Brian King Signed-off-by: James Bottomley --- drivers/scsi/ipr.c | 140 +++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 135 insertions(+), 5 deletions(-) (limited to 'drivers/scsi/ipr.c') diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index d9f208343a2..b15dfcbde4a 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -92,6 +92,7 @@ static unsigned int ipr_fastfail = 0; static unsigned int ipr_transop_timeout = 0; static unsigned int ipr_enable_cache = 1; static unsigned int ipr_debug = 0; +static unsigned int ipr_dual_ioa_raid = 1; static DEFINE_SPINLOCK(ipr_driver_lock); /* This table describes the differences between DMA controller chips */ @@ -158,6 +159,8 @@ module_param_named(enable_cache, ipr_enable_cache, int, 0); MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)"); module_param_named(debug, ipr_debug, int, 0); MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); +module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); +MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)"); MODULE_LICENSE("GPL"); MODULE_VERSION(IPR_DRIVER_VERSION); @@ -5881,6 +5884,94 @@ static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) return IPR_RC_JOB_RETURN; } +/** + * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA + * @ipr_cmd: ipr command struct + * + * This function enables dual IOA RAID support if possible. + * + * Return value: + * IPR_RC_JOB_RETURN + **/ +static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) +{ + struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; + struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; + struct ipr_mode_page24 *mode_page; + int length; + + ENTER; + mode_page = ipr_get_mode_page(mode_pages, 0x24, + sizeof(struct ipr_mode_page24)); + + if (mode_page) + mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; + + length = mode_pages->hdr.length + 1; + mode_pages->hdr.length = 0; + + ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, + ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), + length); + + ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; + ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); + + LEAVE; + return IPR_RC_JOB_RETURN; +} + +/** + * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense + * @ipr_cmd: ipr command struct + * + * This function handles the failure of a Mode Sense to the IOAFP. + * Some adapters do not handle all mode pages. + * + * Return value: + * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN + **/ +static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) +{ + u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); + + if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { + ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; + return IPR_RC_JOB_CONTINUE; + } + + return ipr_reset_cmd_failed(ipr_cmd); +} + +/** + * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA + * @ipr_cmd: ipr command struct + * + * This function send a mode sense to the IOA to retrieve + * the IOA Advanced Function Control mode page. + * + * Return value: + * IPR_RC_JOB_RETURN + **/ +static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) +{ + struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; + + ENTER; + ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), + 0x24, ioa_cfg->vpd_cbs_dma + + offsetof(struct ipr_misc_cbs, mode_pages), + sizeof(struct ipr_mode_pages)); + + ipr_cmd->job_step = ipr_ioafp_mode_select_page24; + ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; + + ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); + + LEAVE; + return IPR_RC_JOB_RETURN; +} + /** * ipr_init_res_table - Initialize the resource table * @ipr_cmd: ipr command struct @@ -5949,7 +6040,10 @@ static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) } } - ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; + if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) + ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; + else + ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; LEAVE; return IPR_RC_JOB_CONTINUE; @@ -5971,8 +6065,11 @@ static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; + struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; ENTER; + if (cap->cap & IPR_CAP_DUAL_IOA_RAID) + ioa_cfg->dual_raid = 1; dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", ucode_vpd->major_release, ucode_vpd->card_type, ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); @@ -6055,6 +6152,37 @@ static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) return 0; } +/** + * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. + * @ipr_cmd: ipr command struct + * + * This function sends a Page 0xD0 inquiry to the adapter + * to retrieve adapter capabilities. + * + * Return value: + * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN + **/ +static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) +{ + struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; + struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; + struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; + + ENTER; + ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; + memset(cap, 0, sizeof(*cap)); + + if (ipr_inquiry_page_supported(page0, 0xD0)) { + ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, + ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), + sizeof(struct ipr_inquiry_cap)); + return IPR_RC_JOB_RETURN; + } + + LEAVE; + return IPR_RC_JOB_CONTINUE; +} + /** * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. * @ipr_cmd: ipr command struct @@ -6075,7 +6203,7 @@ static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) if (!ipr_inquiry_page_supported(page0, 1)) ioa_cfg->cache_state = CACHE_NONE; - ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; + ipr_cmd->job_step = ipr_ioafp_cap_inquiry; ipr_ioafp_inquiry(ipr_cmd, 1, 3, ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), @@ -6679,12 +6807,14 @@ static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; - if (shutdown_type == IPR_SHUTDOWN_ABBREV) - timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; + if (shutdown_type == IPR_SHUTDOWN_NORMAL) + timeout = IPR_SHUTDOWN_TIMEOUT; else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) timeout = IPR_INTERNAL_TIMEOUT; + else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) + timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; else - timeout = IPR_SHUTDOWN_TIMEOUT; + timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); -- cgit v1.2.3-70-g09d2