Author: imp
Date: Wed Dec 20 19:13:55 2017
New Revision: 327034
URL: https://svnweb.freebsd.org/changeset/base/327034

Log:
  Return domain, bus, slot, and function for the transport settings in
  PATH_INQ requests for nvme.
  
  Sponsored by: Netflix
  Differential Revision: https://reviews.freebsd.org/D13546

Modified:
  head/sys/cam/cam_ccb.h
  head/sys/dev/nvme/nvme_sim.c

Modified: head/sys/cam/cam_ccb.h
==============================================================================
--- head/sys/cam/cam_ccb.h      Wed Dec 20 19:12:15 2017        (r327033)
+++ head/sys/cam/cam_ccb.h      Wed Dec 20 19:13:55 2017        (r327034)
@@ -633,6 +633,11 @@ struct ccb_pathinq_settings_sas {
 
 struct ccb_pathinq_settings_nvme {
        uint32_t nsid;          /* Namespace ID for this path */
+       uint32_t domain;
+       uint8_t  bus;
+       uint8_t  slot;
+       uint8_t  function;
+       uint8_t  extra;
 };
 
 #define        PATHINQ_SETTINGS_SIZE   128

Modified: head/sys/dev/nvme/nvme_sim.c
==============================================================================
--- head/sys/dev/nvme/nvme_sim.c        Wed Dec 20 19:12:15 2017        
(r327033)
+++ head/sys/dev/nvme/nvme_sim.c        Wed Dec 20 19:13:55 2017        
(r327034)
@@ -182,7 +182,8 @@ nvme_sim_action(struct cam_sim *sim, union ccb *ccb)
                break;
        case XPT_PATH_INQ:              /* Path routing inquiry */
        {
-               struct ccb_pathinq *cpi = &ccb->cpi;
+               struct ccb_pathinq      *cpi = &ccb->cpi;
+               device_t                dev = ctrlr->dev;
 
                /*
                 * NVMe may have multiple LUNs on the same path. Current 
generation
@@ -210,6 +211,11 @@ nvme_sim_action(struct cam_sim *sim, union ccb *ccb)
                cpi->protocol = PROTO_NVME;
                cpi->protocol_version = nvme_mmio_read_4(ctrlr, vs);
                cpi->xport_specific.nvme.nsid = ns->id;
+               cpi->xport_specific.nvme.domain = pci_get_domain(dev);
+               cpi->xport_specific.nvme.bus = pci_get_bus(dev);
+               cpi->xport_specific.nvme.slot = pci_get_slot(dev);
+               cpi->xport_specific.nvme.function = pci_get_function(dev);
+               cpi->xport_specific.nvme.extra = 0;
                cpi->ccb_h.status = CAM_REQ_CMP;
                break;
        }
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