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Put the nvme_qpair mutex on its own cacheline.

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Sponsored by:	Intel
This commit is contained in:
jimharris 2012-10-10 23:28:58 +00:00
parent 37cc4ef7d0
commit 757271a213
1 changed files with 8 additions and 3 deletions
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11
sys/dev/nvme/nvme_private.h
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@ -88,6 +88,10 @@ MALLOC_DECLARE(M_NVME);
#define NVME_TIMEOUT_IN_SEC (30)
#ifndef CACHE_LINE_SIZE
#define CACHE_LINE_SIZE (64)
#endif
struct nvme_prp_list {
uint64_t prp[NVME_MAX_PRP_LIST_ENTRIES];
SLIST_ENTRY(nvme_prp_list) slist;
@ -131,8 +135,6 @@ struct nvme_qpair {
int64_t num_cmds;
struct mtx lock;
struct nvme_command *cmd;
struct nvme_completion *cpl;
@ -152,7 +154,10 @@ struct nvme_qpair {
struct nvme_tracker **act_tr;
SLIST_HEAD(, nvme_prp_list) free_prp_list;
};
struct mtx lock __aligned(CACHE_LINE_SIZE);
} __aligned(CACHE_LINE_SIZE);
struct nvme_namespace {