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Return domain, bus, slot, and function for the transport settings in

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PATH_INQ requests for nvme.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D13546
This commit is contained in:
Warner Losh 2017-12-20 19:13:55 +00:00
parent 5cf10fb96a
commit 4484c8f5d2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=327034
2 changed files with 12 additions and 1 deletions
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5
sys/cam/cam_ccb.h
View File

@ -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

8
sys/dev/nvme/nvme_sim.c
View File

@ -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;
}