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Reduce NVME_MAX_IO_QUEUES to 1024.

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Most devices today support far fewer than 1024, but this is a
more reasonable default upper limit than the spec-defined 64K.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ia8a6d80c3a5aa181f27c8354758c6ca468013d92
This commit is contained in:
Jim Harris 2015-11-30 09:18:46 -07:00
parent 38ea764f6d
commit 366d931183
4 changed files with 10 additions and 3 deletions
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2
lib/nvme/nvme.c
View File

@ -39,7 +39,7 @@
struct nvme_driver g_nvme_driver = {
.lock = NVME_MUTEX_INITIALIZER,
.max_io_queues = NVME_MAX_IO_QUEUES
.max_io_queues = DEFAULT_MAX_IO_QUEUES
};
int32_t nvme_retry_count;

7
lib/nvme/nvme_internal.h
View File

@ -95,6 +95,13 @@
/* Maximum log page size to fetch for AERs. */
#define NVME_MAX_AER_LOG_SIZE (4096)
/*
* NVME_MAX_IO_QUEUES in nvme_spec.h defines the 64K spec-limit, but this
* define specifies the maximum number of queues this driver will actually
* try to configure, if available.
*/
#define DEFAULT_MAX_IO_QUEUES (1024)
struct nvme_request {
struct nvme_command cmd;

2
test/lib/nvme/unit/nvme_ctrlr_c/nvme_ctrlr_ut.c
View File

@ -37,7 +37,7 @@
struct nvme_driver g_nvme_driver = {
.lock = NVME_MUTEX_INITIALIZER,
.max_io_queues = NVME_MAX_IO_QUEUES
.max_io_queues = DEFAULT_MAX_IO_QUEUES
};
char outbuf[OUTBUF_SIZE];

2
test/lib/nvme/unit/nvme_qpair_c/nvme_qpair_ut.c
View File

@ -37,7 +37,7 @@
struct nvme_driver g_nvme_driver = {
.lock = NVME_MUTEX_INITIALIZER,
.max_io_queues = NVME_MAX_IO_QUEUES,
.max_io_queues = DEFAULT_MAX_IO_QUEUES,
};
int32_t nvme_retry_count = 1;