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bhyve: add NVMe Feature Interrupt Vector Config

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This adds support for NVMe Get Features, Interrupt Vector Config
parameter error checking done by the UNH compliance tests.

Fixes UNH Tests 1.6.8 and 5.5.6

Tested by:	Jason Tubnor
MFC after:	2 weeks
Differential Revision: https://reviews.freebsd.org/D24898
This commit is contained in:
Chuck Tuffli 2020-06-29 00:32:15 +00:00
parent 46ea627374
commit f97ed15123
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=362763
1 changed files with 39 additions and 0 deletions
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39
usr.sbin/bhyve/pci_nvme.c
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@ -356,6 +356,10 @@ static void nvme_feature_num_queues(struct pci_nvme_softc *,
struct nvme_feature_obj *,
struct nvme_command *,
struct nvme_completion *);
static void nvme_feature_iv_config(struct pci_nvme_softc *,
struct nvme_feature_obj *,
struct nvme_command *,
struct nvme_completion *);
static __inline void
cpywithpad(char *dst, size_t dst_size, const char *src, char pad)
@ -612,6 +616,8 @@ pci_nvme_init_features(struct pci_nvme_softc *sc)
sc->feat[NVME_FEAT_LBA_RANGE_TYPE].namespace_specific = true;
sc->feat[NVME_FEAT_ERROR_RECOVERY].namespace_specific = true;
sc->feat[NVME_FEAT_NUMBER_OF_QUEUES].set = nvme_feature_num_queues;
sc->feat[NVME_FEAT_INTERRUPT_VECTOR_CONFIGURATION].set =
nvme_feature_iv_config;
}
static void
@ -1275,6 +1281,39 @@ nvme_feature_invalid_cb(struct pci_nvme_softc *sc,
pci_nvme_status_genc(&compl->status, NVME_SC_INVALID_FIELD);
}
static void
nvme_feature_iv_config(struct pci_nvme_softc *sc,
struct nvme_feature_obj *feat,
struct nvme_command *command,
struct nvme_completion *compl)
{
uint32_t i;
uint32_t cdw11 = command->cdw11;
uint16_t iv;
bool cd;
pci_nvme_status_genc(&compl->status, NVME_SC_INVALID_FIELD);
iv = cdw11 & 0xffff;
cd = cdw11 & (1 << 16);
if (iv > (sc->max_queues + 1)) {
return;
}
/* No Interrupt Coalescing (i.e. not Coalescing Disable) for Admin Q */
if ((iv == 0) && !cd)
return;
/* Requested Interrupt Vector must be used by a CQ */
for (i = 0; i < sc->num_cqueues + 1; i++) {
if (sc->compl_queues[i].intr_vec == iv) {
pci_nvme_status_genc(&compl->status, NVME_SC_SUCCESS);
}
}
}
static void
nvme_feature_num_queues(struct pci_nvme_softc *sc,
struct nvme_feature_obj *feat,