Date: Fri, 10 Mar 2017 21:09:33 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r315030 - head/sys/cam/ctl Message-ID: <201703102109.v2AL9X2f045818@repo.freebsd.org>
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Author: mav Date: Fri Mar 10 21:09:33 2017 New Revision: 315030 URL: https://svnweb.freebsd.org/changeset/base/315030 Log: Abort all ATIOs and INOTs queued to SIM on LUN disable. Some SIMs may not abort them implicitly, that either fail the LUN disable request or just make us wait for those CCBs forever. With this change I can successfully disable LUNs on mpt(4). For isp(4), which aborts them implicitly, this change should be irrelevant. MFC after: 2 weeks Modified: head/sys/cam/ctl/scsi_ctl.c Modified: head/sys/cam/ctl/scsi_ctl.c ============================================================================== --- head/sys/cam/ctl/scsi_ctl.c Fri Mar 10 20:48:38 2017 (r315029) +++ head/sys/cam/ctl/scsi_ctl.c Fri Mar 10 21:09:33 2017 (r315030) @@ -106,6 +106,8 @@ struct ctlfe_lun_softc { int inots_alloced; /* Number of INOTs not freed */ struct task refdrain_task; STAILQ_HEAD(, ccb_hdr) work_queue; + LIST_HEAD(, ccb_hdr) atio_list; /* List of ATIOs queued to SIM. */ + LIST_HEAD(, ccb_hdr) inot_list; /* List of INOTs queued to SIM. */ STAILQ_ENTRY(ctlfe_lun_softc) links; }; @@ -453,7 +455,7 @@ ctlferegister(struct cam_periph *periph, { struct ctlfe_softc *bus_softc; struct ctlfe_lun_softc *softc; - union ccb en_lun_ccb; + union ccb ccb; cam_status status; int i; @@ -461,19 +463,21 @@ ctlferegister(struct cam_periph *periph, bus_softc = softc->parent_softc; STAILQ_INIT(&softc->work_queue); + LIST_INIT(&softc->atio_list); + LIST_INIT(&softc->inot_list); softc->periph = periph; periph->softc = softc; - xpt_setup_ccb(&en_lun_ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); - en_lun_ccb.ccb_h.func_code = XPT_EN_LUN; - en_lun_ccb.cel.grp6_len = 0; - en_lun_ccb.cel.grp7_len = 0; - en_lun_ccb.cel.enable = 1; - xpt_action(&en_lun_ccb); - status = (en_lun_ccb.ccb_h.status & CAM_STATUS_MASK); + xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); + ccb.ccb_h.func_code = XPT_EN_LUN; + ccb.cel.grp6_len = 0; + ccb.cel.grp7_len = 0; + ccb.cel.enable = 1; + xpt_action(&ccb); + status = (ccb.ccb_h.status & CAM_STATUS_MASK); if (status != CAM_REQ_CMP) { xpt_print(periph->path, "%s: Enable LUN failed, status 0x%x\n", - __func__, en_lun_ccb.ccb_h.status); + __func__, ccb.ccb_h.status); return (status); } @@ -507,6 +511,7 @@ ctlferegister(struct cam_periph *periph, PRIV_INFO(new_io) = cmd_info; softc->atios_alloced++; new_ccb->ccb_h.io_ptr = new_io; + LIST_INSERT_HEAD(&softc->atio_list, &new_ccb->ccb_h, periph_links.le); xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1); new_ccb->ccb_h.func_code = XPT_ACCEPT_TARGET_IO; @@ -553,6 +558,7 @@ ctlferegister(struct cam_periph *periph, } softc->inots_alloced++; new_ccb->ccb_h.io_ptr = new_io; + LIST_INSERT_HEAD(&softc->inot_list, &new_ccb->ccb_h, periph_links.le); xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1); new_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY; @@ -589,23 +595,34 @@ ctlferegister(struct cam_periph *periph, static void ctlfeoninvalidate(struct cam_periph *periph) { - union ccb en_lun_ccb; - cam_status status; + struct ctlfe_lun_softc *softc = (struct ctlfe_lun_softc *)periph->softc; struct ctlfe_softc *bus_softc; - struct ctlfe_lun_softc *softc; - - softc = (struct ctlfe_lun_softc *)periph->softc; + union ccb ccb; + struct ccb_hdr *hdr; + cam_status status; - xpt_setup_ccb(&en_lun_ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); - en_lun_ccb.ccb_h.func_code = XPT_EN_LUN; - en_lun_ccb.cel.grp6_len = 0; - en_lun_ccb.cel.grp7_len = 0; - en_lun_ccb.cel.enable = 0; - xpt_action(&en_lun_ccb); - status = (en_lun_ccb.ccb_h.status & CAM_STATUS_MASK); + /* Abort all ATIOs and INOTs queued to SIM. */ + xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); + ccb.ccb_h.func_code = XPT_ABORT; + LIST_FOREACH(hdr, &softc->atio_list, periph_links.le) { + ccb.cab.abort_ccb = (union ccb *)hdr; + xpt_action(&ccb); + } + LIST_FOREACH(hdr, &softc->inot_list, periph_links.le) { + ccb.cab.abort_ccb = (union ccb *)hdr; + xpt_action(&ccb); + } + + /* Disable the LUN in SIM. */ + ccb.ccb_h.func_code = XPT_EN_LUN; + ccb.cel.grp6_len = 0; + ccb.cel.grp7_len = 0; + ccb.cel.enable = 0; + xpt_action(&ccb); + status = (ccb.ccb_h.status & CAM_STATUS_MASK); if (status != CAM_REQ_CMP) { xpt_print(periph->path, "%s: Disable LUN failed, status 0x%x\n", - __func__, en_lun_ccb.ccb_h.status); + __func__, ccb.ccb_h.status); /* * XXX KDM what do we do now? */ @@ -963,6 +980,11 @@ ctlfe_requeue_ccb(struct cam_periph *per mtx_unlock(mtx); return; } + softc = (struct ctlfe_lun_softc *)periph->softc; + if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) + LIST_INSERT_HEAD(&softc->atio_list, &ccb->ccb_h, periph_links.le); + else + LIST_INSERT_HEAD(&softc->inot_list, &ccb->ccb_h, periph_links.le); if (unlock) cam_periph_unlock(periph); @@ -971,7 +993,6 @@ ctlfe_requeue_ccb(struct cam_periph *per * target/lun. Reset the target and LUN fields back to the wildcard * values before we send them back down to the SIM. */ - softc = (struct ctlfe_lun_softc *)periph->softc; if (softc->flags & CTLFE_LUN_WILDCARD) { ccb->ccb_h.target_id = CAM_TARGET_WILDCARD; ccb->ccb_h.target_lun = CAM_LUN_WILDCARD; @@ -1086,6 +1107,7 @@ ctlfedone(struct cam_periph *periph, uni switch (done_ccb->ccb_h.func_code) { case XPT_ACCEPT_TARGET_IO: { + LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); atio = &done_ccb->atio; status = atio->ccb_h.status & CAM_STATUS_MASK; if (status != CAM_CDB_RECVD) { @@ -1375,6 +1397,7 @@ ctlfedone(struct cam_periph *periph, uni struct ccb_immediate_notify *inot; int send_ctl_io; + LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); inot = &done_ccb->cin1; io = done_ccb->ccb_h.io_ptr; ctl_zero_io(io);
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