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| author | jimharris <jimharris@FreeBSD.org> | 2012-10-18 00:45:53 +0000 |
|---|---|---|
| committer | jimharris <jimharris@FreeBSD.org> | 2012-10-18 00:45:53 +0000 |
| commit | 4ff82f24cf60061567658c04ca7683afcd3c02c4 (patch) | |
| tree | 13ce3afede2e9f058b423fec60983fdac597faa6 /sys/dev/nvme/nvme_private.h | |
| parent | a5279c222fba5a40054c2b884024700c8f22a6f7 (diff) | |
| download | FreeBSD-src-4ff82f24cf60061567658c04ca7683afcd3c02c4.zip FreeBSD-src-4ff82f24cf60061567658c04ca7683afcd3c02c4.tar.gz | |
Add ability to queue nvme_request objects if no nvme_trackers are available.
This eliminates the need to manage queue depth at the nvd(4) level for
Chatham prototype board workarounds, and also adds the ability to
accept a number of requests on a single qpair that is much larger
than the number of trackers allocated.
Sponsored by: Intel
Diffstat (limited to 'sys/dev/nvme/nvme_private.h')
| -rw-r--r-- | sys/dev/nvme/nvme_private.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/dev/nvme/nvme_private.h b/sys/dev/nvme/nvme_private.h index 0797b53..4f57f7c 100644 --- a/sys/dev/nvme/nvme_private.h +++ b/sys/dev/nvme/nvme_private.h @@ -115,7 +115,7 @@ struct nvme_request { struct uio *uio; nvme_cb_fn_t cb_fn; void *cb_arg; - SLIST_ENTRY(nvme_request) slist; + STAILQ_ENTRY(nvme_request) stailq; }; struct nvme_tracker { @@ -168,6 +168,7 @@ struct nvme_qpair { uint64_t cpl_bus_addr; SLIST_HEAD(, nvme_tracker) free_tr; + STAILQ_HEAD(, nvme_request) queued_req; struct nvme_tracker **act_tr; |
