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nvme: add ctrlr function to set initial CAP value

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Change-Id: Id7f68f279f87a08844015efcd35a790944b3bfbe
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This commit is contained in:
Daniel Verkamp 2016-12-14 17:49:53 -07:00
parent fb31963c4b
commit f505f57b36
4 changed files with 12 additions and 5 deletions
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12
lib/nvme/nvme_ctrlr.c
View File

@ -1285,9 +1285,6 @@ nvme_ctrlr_construct(struct spdk_nvme_ctrlr *ctrlr)
nvme_ctrlr_set_state(ctrlr, NVME_CTRLR_STATE_INIT, NVME_TIMEOUT_INFINITE);
ctrlr->flags = 0;
ctrlr->free_io_qids = NULL;
ctrlr->min_page_size = 1 << (12 + ctrlr->cap.bits.mpsmin);
ctrlr->is_resetting = false;
ctrlr->is_failed = false;
@ -1306,6 +1303,15 @@ nvme_ctrlr_construct(struct spdk_nvme_ctrlr *ctrlr)
return rc;
}
/* This function should be called once at ctrlr initialization to set up constant properties. */
void
nvme_ctrlr_init_cap(struct spdk_nvme_ctrlr *ctrlr, const union spdk_nvme_cap_register *cap)
{
ctrlr->cap = *cap;
ctrlr->min_page_size = 1u << (12 + ctrlr->cap.bits.mpsmin);
}
void
nvme_ctrlr_destruct(struct spdk_nvme_ctrlr *ctrlr)
{

1
lib/nvme/nvme_internal.h
View File

@ -528,6 +528,7 @@ int nvme_ctrlr_start(struct spdk_nvme_ctrlr *ctrlr);
int nvme_ctrlr_submit_admin_request(struct spdk_nvme_ctrlr *ctrlr,
struct nvme_request *req);
int nvme_ctrlr_get_cap(struct spdk_nvme_ctrlr *ctrlr, union spdk_nvme_cap_register *cap);
void nvme_ctrlr_init_cap(struct spdk_nvme_ctrlr *ctrlr, const union spdk_nvme_cap_register *cap);
int nvme_qpair_construct(struct spdk_nvme_qpair *qpair, uint16_t id,
uint16_t num_entries,
struct spdk_nvme_ctrlr *ctrlr,

2
lib/nvme/nvme_pcie.c
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@ -623,7 +623,7 @@ struct spdk_nvme_ctrlr *nvme_pcie_ctrlr_construct(const struct spdk_nvme_transpo
return NULL;
}
pctrlr->ctrlr.cap = cap;
nvme_ctrlr_init_cap(&pctrlr->ctrlr, &cap);
/* Doorbell stride is 2 ^ (dstrd + 2),
* but we want multiples of 4, so drop the + 2 */

2
lib/nvme/nvme_rdma.c
View File

@ -1263,7 +1263,7 @@ struct spdk_nvme_ctrlr *nvme_rdma_ctrlr_construct(const struct spdk_nvme_transpo
return NULL;
}
rctrlr->ctrlr.cap = cap;
nvme_ctrlr_init_cap(&rctrlr->ctrlr, &cap);
SPDK_TRACELOG(SPDK_TRACE_DEBUG, "succesully initialized the nvmf ctrlr\n");
return &rctrlr->ctrlr;