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nvme: Fix get/set number of queues feature 

According to the specification, the low 16 bits should contain the number of
I/O submission queues, and the high 16 bits should contain the number of
I/O completion queues.

Signed-off-by: Alex Friedman <alex@e8storage.com>
Acked-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Alex Friedman 2014-12-05 14:40:24 +02:00 committed by Stefan Hajnoczi
parent 9a502563ee
commit e7026f1953
1 changed files with 4 additions and 2 deletions
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6
hw/block/nvme.c
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@ -476,7 +476,8 @@ static uint16_t nvme_get_feature(NvmeCtrl *n, NvmeCmd *cmd, NvmeRequest *req)
switch (dw10) {
case NVME_NUMBER_OF_QUEUES:
req->cqe.result = cpu_to_le32(n->num_queues);
req->cqe.result =
cpu_to_le32((n->num_queues - 1) | ((n->num_queues - 1) << 16));
break;
default:
return NVME_INVALID_FIELD | NVME_DNR;
@ -490,7 +491,8 @@ static uint16_t nvme_set_feature(NvmeCtrl *n, NvmeCmd *cmd, NvmeRequest *req)
switch (dw10) {
case NVME_NUMBER_OF_QUEUES:
req->cqe.result = cpu_to_le32(n->num_queues);
req->cqe.result =
cpu_to_le32((n->num_queues - 1) | ((n->num_queues - 1) << 16));
break;
default:
return NVME_INVALID_FIELD | NVME_DNR;