diff options
Diffstat (limited to 'hw/block')
| -rw-r--r-- | hw/block/nvme.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/hw/block/nvme.c b/hw/block/nvme.c index 7e065353a5..b8d5251e1e 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -774,6 +774,18 @@ static uint16_t nvme_identify(NvmeCtrl *n, NvmeCmd *cmd) } } +static uint16_t nvme_abort(NvmeCtrl *n, NvmeCmd *cmd, NvmeRequest *req) +{ + uint16_t sqid = le32_to_cpu(cmd->cdw10) & 0xffff; + + req->cqe.result = 1; + if (nvme_check_sqid(n, sqid)) { + return NVME_INVALID_FIELD | NVME_DNR; + } + + return NVME_SUCCESS; +} + static inline void nvme_set_timestamp(NvmeCtrl *n, uint64_t ts) { trace_pci_nvme_setfeat_timestamp(ts); @@ -910,6 +922,8 @@ static uint16_t nvme_admin_cmd(NvmeCtrl *n, NvmeCmd *cmd, NvmeRequest *req) return nvme_create_cq(n, cmd); case NVME_ADM_CMD_IDENTIFY: return nvme_identify(n, cmd); + case NVME_ADM_CMD_ABORT: + return nvme_abort(n, cmd, req); case NVME_ADM_CMD_SET_FEATURES: return nvme_set_feature(n, cmd, req); case NVME_ADM_CMD_GET_FEATURES: @@ -1594,6 +1608,19 @@ static void nvme_init_ctrl(NvmeCtrl *n, PCIDevice *pci_dev) id->ieee[1] = 0x02; id->ieee[2] = 0xb3; id->oacs = cpu_to_le16(0); + + /* + * Because the controller always completes the Abort command immediately, + * there can never be more than one concurrently executing Abort command, + * so this value is never used for anything. Note that there can easily be + * many Abort commands in the queues, but they are not considered + * "executing" until processed by nvme_abort. + * + * The specification recommends a value of 3 for Abort Command Limit (four + * concurrently outstanding Abort commands), so lets use that though it is + * inconsequential. + */ + id->acl = 3; id->frmw = 7 << 1; id->lpa = 1 << 0; id->sqes = (0x6 << 4) | 0x6; |