[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH v2 04/19] block/nvme: Trace controller capabilities
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH v2 04/19] block/nvme: Trace controller capabilities |
Date: |
Mon, 26 Oct 2020 11:54:49 +0100 |
Controllers have different capabilities and report them in the
CAP register. We are particularly interested by the page size
limits.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
block/nvme.c | 10 ++++++++++
block/trace-events | 1 +
2 files changed, 11 insertions(+)
diff --git a/block/nvme.c b/block/nvme.c
index 5abd7257cac..3b6d3972ec2 100644
--- a/block/nvme.c
+++ b/block/nvme.c
@@ -720,6 +720,16 @@ static int nvme_init(BlockDriverState *bs, const char
*device, int namespace,
* Initialization". */
cap = le64_to_cpu(regs->cap);
+ trace_nvme_controller_capability("Maximum Queue Entries Supported",
+ NVME_CAP_MQES(cap));
+ trace_nvme_controller_capability("Contiguous Queues Required",
+ NVME_CAP_CQR(cap));
+ trace_nvme_controller_capability("Subsystem Reset Supported",
+ NVME_CAP_NSSRS(cap));
+ trace_nvme_controller_capability("Memory Page Size Minimum",
+ NVME_CAP_MPSMIN(cap));
+ trace_nvme_controller_capability("Memory Page Size Maximum",
+ NVME_CAP_MPSMAX(cap));
if (!NVME_CAP_CSS(cap)) {
error_setg(errp, "Device doesn't support NVMe command set");
ret = -EINVAL;
diff --git a/block/trace-events b/block/trace-events
index 0e351c3fa3d..3f141dc6801 100644
--- a/block/trace-events
+++ b/block/trace-events
@@ -134,6 +134,7 @@ qed_aio_write_postfill(void *s, void *acb, uint64_t start,
size_t len, uint64_t
qed_aio_write_main(void *s, void *acb, int ret, uint64_t offset, size_t len)
"s %p acb %p ret %d offset %"PRIu64" len %zu"
# nvme.c
+nvme_controller_capability(const char *desc, uint64_t value) "%s: %"PRIu64
nvme_kick(void *s, int queue) "s %p queue %d"
nvme_dma_flush_queue_wait(void *s) "s %p"
nvme_error(int cmd_specific, int sq_head, int sqid, int cid, int status)
"cmd_specific %d sq_head %d sqid %d cid %d status 0x%x"
--
2.26.2
- [PATCH v2 00/19] util/vfio-helpers: Allow using multiple MSIX IRQs, Philippe Mathieu-Daudé, 2020/10/26
- [PATCH v2 01/19] block/nvme: Correct minimum device page size, Philippe Mathieu-Daudé, 2020/10/26
- [PATCH v2 02/19] block/nvme: Set request_alignment at initialization, Philippe Mathieu-Daudé, 2020/10/26
- [PATCH v2 03/19] block/nvme: Introduce device/iommu 'page_size_min' variables, Philippe Mathieu-Daudé, 2020/10/26
- [PATCH v2 04/19] block/nvme: Trace controller capabilities,
Philippe Mathieu-Daudé <=
- [PATCH v2 05/19] util/vfio-helpers: Improve reporting unsupported IOMMU type, Philippe Mathieu-Daudé, 2020/10/26
- [PATCH v2 06/19] util/vfio-helpers: Trace PCI I/O config accesses, Philippe Mathieu-Daudé, 2020/10/26
- [PATCH v2 07/19] util/vfio-helpers: Trace PCI BAR region info, Philippe Mathieu-Daudé, 2020/10/26
- [PATCH v2 08/19] util/vfio-helpers: Trace where BARs are mapped, Philippe Mathieu-Daudé, 2020/10/26
- [PATCH v2 09/19] util/vfio-helpers: Improve DMA trace events, Philippe Mathieu-Daudé, 2020/10/26
- [PATCH v2 10/19] util/vfio-helpers: Convert vfio_dump_mapping to trace events, Philippe Mathieu-Daudé, 2020/10/26