LGTM with one small nit (see below)...
Reviewed-by: Dmitry Fomichev <dmitry.fomic...@wdc.com>
On Mon, 2020-06-29 at 20:26 +0200, Klaus Jensen wrote:
> From: Klaus Jensen <k.jen...@samsung.com>
>
> Add support for any remaining mandatory controller operating parameters
> (features).
>
> Signed-off-by: Klaus Jensen <k.jen...@samsung.com>
> ---
> hw/block/nvme.c | 39 +++++++++++++++++++++++++++++++++------
> hw/block/nvme.h | 18 ++++++++++++++++++
> hw/block/trace-events | 2 ++
> include/block/nvme.h | 7 +++++++
> 4 files changed, 60 insertions(+), 6 deletions(-)
>
> diff --git a/hw/block/nvme.c b/hw/block/nvme.c
> index da13ca1ddb60..647f408854ae 100644
> --- a/hw/block/nvme.c
> +++ b/hw/block/nvme.c
> @@ -1057,8 +1057,16 @@ static uint16_t nvme_get_feature(NvmeCtrl *n, NvmeCmd
> *cmd, NvmeRequest *req)
> uint32_t dw10 = le32_to_cpu(cmd->cdw10);
> uint32_t dw11 = le32_to_cpu(cmd->cdw11);
> uint32_t result;
> + uint8_t fid = NVME_GETSETFEAT_FID(dw10);
> + uint16_t iv;
>
> - switch (dw10) {
> + trace_pci_nvme_getfeat(nvme_cid(req), fid, dw11);
> +
> + if (!nvme_feature_support[fid]) {
> + return NVME_INVALID_FIELD | NVME_DNR;
> + }
> +
> + switch (fid) {
> case NVME_TEMPERATURE_THRESHOLD:
> result = 0;
>
> @@ -1089,14 +1097,27 @@ static uint16_t nvme_get_feature(NvmeCtrl *n, NvmeCmd
> *cmd, NvmeRequest *req)
> ((n->params.max_ioqpairs - 1) << 16));
> trace_pci_nvme_getfeat_numq(result);
> break;
> + case NVME_INTERRUPT_VECTOR_CONF:
> + iv = dw11 & 0xffff;
> + if (iv >= n->params.max_ioqpairs + 1) {
> + return NVME_INVALID_FIELD | NVME_DNR;
> + }
> +
> + result = iv;
> + if (iv == n->admin_cq.vector) {
> + result |= NVME_INTVC_NOCOALESCING;
> + }
> +
> + result = cpu_to_le32(result);
> + break;
> case NVME_ASYNCHRONOUS_EVENT_CONF:
> result = cpu_to_le32(n->features.async_config);
> break;
> case NVME_TIMESTAMP:
> return nvme_get_feature_timestamp(n, cmd);
> default:
> - trace_pci_nvme_err_invalid_getfeat(dw10);
> - return NVME_INVALID_FIELD | NVME_DNR;
> + result = cpu_to_le32(nvme_feature_default[fid]);
> + break;
> }
>
> req->cqe.result = result;
> @@ -1125,8 +1146,15 @@ static uint16_t nvme_set_feature(NvmeCtrl *n, NvmeCmd
> *cmd, NvmeRequest *req)
> {
> uint32_t dw10 = le32_to_cpu(cmd->cdw10);
> uint32_t dw11 = le32_to_cpu(cmd->cdw11);
> + uint8_t fid = NVME_GETSETFEAT_FID(dw10);
>
> - switch (dw10) {
> + trace_pci_nvme_setfeat(nvme_cid(req), fid, dw11);
> +
> + if (!nvme_feature_support[fid]) {
> + return NVME_INVALID_FIELD | NVME_DNR;
> + }
> +
> + switch (fid) {
> case NVME_TEMPERATURE_THRESHOLD:
> if (NVME_TEMP_TMPSEL(dw11) != NVME_TEMP_TMPSEL_COMPOSITE) {
> break;
> @@ -1173,8 +1201,7 @@ static uint16_t nvme_set_feature(NvmeCtrl *n, NvmeCmd
> *cmd, NvmeRequest *req)
> case NVME_TIMESTAMP:
> return nvme_set_feature_timestamp(n, cmd);
> default:
> - trace_pci_nvme_err_invalid_setfeat(dw10);
> - return NVME_INVALID_FIELD | NVME_DNR;
> + return NVME_FEAT_NOT_CHANGABLE | NVME_DNR;
In spec, it is "Changeable", could as well add that 'e' here
> }
> return NVME_SUCCESS;
> }
> diff --git a/hw/block/nvme.h b/hw/block/nvme.h
> index 16a254d30b4e..d0763eb59e5d 100644
> --- a/hw/block/nvme.h
> +++ b/hw/block/nvme.h
> @@ -90,6 +90,24 @@ typedef struct NvmeFeatureVal {
> uint32_t async_config;
> } NvmeFeatureVal;
>
> +static const uint32_t nvme_feature_default[0x100] = {
> + [NVME_ARBITRATION] = NVME_ARB_AB_NOLIMIT,
> +};
> +
> +static const bool nvme_feature_support[0x100] = {
> + [NVME_ARBITRATION] = true,
> + [NVME_POWER_MANAGEMENT] = true,
> + [NVME_TEMPERATURE_THRESHOLD] = true,
> + [NVME_ERROR_RECOVERY] = true,
> + [NVME_VOLATILE_WRITE_CACHE] = true,
> + [NVME_NUMBER_OF_QUEUES] = true,
> + [NVME_INTERRUPT_COALESCING] = true,
> + [NVME_INTERRUPT_VECTOR_CONF] = true,
> + [NVME_WRITE_ATOMICITY] = true,
> + [NVME_ASYNCHRONOUS_EVENT_CONF] = true,
> + [NVME_TIMESTAMP] = true,
> +};
> +
> typedef struct NvmeCtrl {
> PCIDevice parent_obj;
> MemoryRegion iomem;
> diff --git a/hw/block/trace-events b/hw/block/trace-events
> index 091af16ca7d7..42e62f4649f8 100644
> --- a/hw/block/trace-events
> +++ b/hw/block/trace-events
> @@ -46,6 +46,8 @@ pci_nvme_identify_ctrl(void) "identify controller"
> pci_nvme_identify_ns(uint32_t ns) "nsid %"PRIu32""
> pci_nvme_identify_nslist(uint32_t ns) "nsid %"PRIu32""
> pci_nvme_get_log(uint16_t cid, uint8_t lid, uint8_t lsp, uint8_t rae,
> uint32_t len, uint64_t off) "cid %"PRIu16" lid 0x%"PRIx8" lsp 0x%"PRIx8" rae
> 0x%"PRIx8" len %"PRIu32" off %"PRIu64""
> +pci_nvme_getfeat(uint16_t cid, uint8_t fid, uint32_t cdw11) "cid %"PRIu16"
> fid 0x%"PRIx8" cdw11 0x%"PRIx32""
> +pci_nvme_setfeat(uint16_t cid, uint8_t fid, uint32_t cdw11) "cid %"PRIu16"
> fid 0x%"PRIx8" cdw11 0x%"PRIx32""
> pci_nvme_getfeat_vwcache(const char* result) "get feature volatile write
> cache, result=%s"
> pci_nvme_getfeat_numq(int result) "get feature number of queues, result=%d"
> pci_nvme_setfeat_numq(int reqcq, int reqsq, int gotcq, int gotsq) "requested
> cq_count=%d sq_count=%d, responding with cq_count=%d sq_count=%d"
> diff --git a/include/block/nvme.h b/include/block/nvme.h
> index c9f232a70e98..662e521c9e9b 100644
> --- a/include/block/nvme.h
> +++ b/include/block/nvme.h
> @@ -662,6 +662,7 @@ enum NvmeStatusCodes {
> NVME_FW_REQ_RESET = 0x010b,
> NVME_INVALID_QUEUE_DEL = 0x010c,
> NVME_FID_NOT_SAVEABLE = 0x010d,
> + NVME_FEAT_NOT_CHANGABLE = 0x010e,
> NVME_FID_NOT_NSID_SPEC = 0x010f,
> NVME_FW_REQ_SUSYSTEM_RESET = 0x0110,
> NVME_CONFLICTING_ATTRS = 0x0180,
> @@ -866,6 +867,7 @@ enum NvmeIdCtrlLpa {
> #define NVME_CTRL_SGLS_ADDR_OFFSET (0x1 << 20)
>
> #define NVME_ARB_AB(arb) (arb & 0x7)
> +#define NVME_ARB_AB_NOLIMIT 0x7
> #define NVME_ARB_LPW(arb) ((arb >> 8) & 0xff)
> #define NVME_ARB_MPW(arb) ((arb >> 16) & 0xff)
> #define NVME_ARB_HPW(arb) ((arb >> 24) & 0xff)
> @@ -873,6 +875,8 @@ enum NvmeIdCtrlLpa {
> #define NVME_INTC_THR(intc) (intc & 0xff)
> #define NVME_INTC_TIME(intc) ((intc >> 8) & 0xff)
>
> +#define NVME_INTVC_NOCOALESCING (0x1 << 16)
> +
> #define NVME_TEMP_THSEL(temp) ((temp >> 20) & 0x3)
> #define NVME_TEMP_THSEL_OVER 0x0
> #define NVME_TEMP_THSEL_UNDER 0x1
> @@ -902,6 +906,9 @@ enum NvmeFeatureIds {
> NVME_SOFTWARE_PROGRESS_MARKER = 0x80
> };
>
> +#define NVME_GETSETFEAT_FID_MASK 0xff
> +#define NVME_GETSETFEAT_FID(dw10) (dw10 & NVME_GETSETFEAT_FID_MASK)
> +
> typedef struct NvmeRangeType {
> uint8_t type;
> uint8_t attributes;
