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hw/nvme: Add trace events for shadow doorbell buffer
When shadow doorbell buffer is enabled, doorbell registers are lazily updated. The actual queue head and tail pointers are stored in Shadow Doorbell buffers. Add trace events for updates on the Shadow Doorbell buffers and EventIdx buffers. Also add trace event for the Doorbell Buffer Config command. Signed-off-by: Jinhao Fan <fanjinhao21s@ict.ac.cn> Reviewed-by: Klaus Jensen <k.jensen@samsung.com> Reviewed-by: Keith Busch <kbusch@kernel.org> [k.jensen: rebased] Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
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@ -1335,6 +1335,7 @@ static void nvme_update_cq_head(NvmeCQueue *cq)
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{
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pci_dma_read(&cq->ctrl->parent_obj, cq->db_addr, &cq->head,
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sizeof(cq->head));
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trace_pci_nvme_shadow_doorbell_cq(cq->cqid, cq->head);
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}
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static void nvme_post_cqes(void *opaque)
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@ -6049,6 +6050,8 @@ static uint16_t nvme_dbbuf_config(NvmeCtrl *n, const NvmeRequest *req)
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}
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}
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trace_pci_nvme_dbbuf_config(dbs_addr, eis_addr);
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return NVME_SUCCESS;
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}
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@ -6111,12 +6114,14 @@ static void nvme_update_sq_eventidx(const NvmeSQueue *sq)
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{
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pci_dma_write(&sq->ctrl->parent_obj, sq->ei_addr, &sq->tail,
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sizeof(sq->tail));
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trace_pci_nvme_eventidx_sq(sq->sqid, sq->tail);
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}
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static void nvme_update_sq_tail(NvmeSQueue *sq)
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{
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pci_dma_read(&sq->ctrl->parent_obj, sq->db_addr, &sq->tail,
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sizeof(sq->tail));
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trace_pci_nvme_shadow_doorbell_sq(sq->sqid, sq->tail);
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}
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static void nvme_process_sq(void *opaque)
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@ -3,6 +3,7 @@ pci_nvme_irq_msix(uint32_t vector) "raising MSI-X IRQ vector %u"
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pci_nvme_irq_pin(void) "pulsing IRQ pin"
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pci_nvme_irq_masked(void) "IRQ is masked"
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pci_nvme_dma_read(uint64_t prp1, uint64_t prp2) "DMA read, prp1=0x%"PRIx64" prp2=0x%"PRIx64""
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pci_nvme_dbbuf_config(uint64_t dbs_addr, uint64_t eis_addr) "dbs_addr=0x%"PRIx64" eis_addr=0x%"PRIx64""
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pci_nvme_map_addr(uint64_t addr, uint64_t len) "addr 0x%"PRIx64" len %"PRIu64""
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pci_nvme_map_addr_cmb(uint64_t addr, uint64_t len) "addr 0x%"PRIx64" len %"PRIu64""
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pci_nvme_map_prp(uint64_t trans_len, uint32_t len, uint64_t prp1, uint64_t prp2, int num_prps) "trans_len %"PRIu64" len %"PRIu32" prp1 0x%"PRIx64" prp2 0x%"PRIx64" num_prps %d"
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@ -83,6 +84,8 @@ pci_nvme_enqueue_event_noqueue(int queued) "queued %d"
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pci_nvme_enqueue_event_masked(uint8_t typ) "type 0x%"PRIx8""
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pci_nvme_no_outstanding_aers(void) "ignoring event; no outstanding AERs"
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pci_nvme_enqueue_req_completion(uint16_t cid, uint16_t cqid, uint32_t dw0, uint32_t dw1, uint16_t status) "cid %"PRIu16" cqid %"PRIu16" dw0 0x%"PRIx32" dw1 0x%"PRIx32" status 0x%"PRIx16""
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pci_nvme_eventidx_cq(uint16_t cqid, uint16_t new_eventidx) "cqid %"PRIu16" new_eventidx %"PRIu16""
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pci_nvme_eventidx_sq(uint16_t sqid, uint16_t new_eventidx) "sqid %"PRIu16" new_eventidx %"PRIu16""
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pci_nvme_mmio_read(uint64_t addr, unsigned size) "addr 0x%"PRIx64" size %d"
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pci_nvme_mmio_write(uint64_t addr, uint64_t data, unsigned size) "addr 0x%"PRIx64" data 0x%"PRIx64" size %d"
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pci_nvme_mmio_doorbell_cq(uint16_t cqid, uint16_t new_head) "cqid %"PRIu16" new_head %"PRIu16""
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@ -99,6 +102,8 @@ pci_nvme_mmio_start_success(void) "setting controller enable bit succeeded"
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pci_nvme_mmio_stopped(void) "cleared controller enable bit"
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pci_nvme_mmio_shutdown_set(void) "shutdown bit set"
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pci_nvme_mmio_shutdown_cleared(void) "shutdown bit cleared"
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pci_nvme_shadow_doorbell_cq(uint16_t cqid, uint16_t new_shadow_doorbell) "cqid %"PRIu16" new_shadow_doorbell %"PRIu16""
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pci_nvme_shadow_doorbell_sq(uint16_t sqid, uint16_t new_shadow_doorbell) "sqid %"PRIu16" new_shadow_doorbell %"PRIu16""
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pci_nvme_open_zone(uint64_t slba, uint32_t zone_idx, int all) "open zone, slba=%"PRIu64", idx=%"PRIu32", all=%"PRIi32""
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pci_nvme_close_zone(uint64_t slba, uint32_t zone_idx, int all) "close zone, slba=%"PRIu64", idx=%"PRIu32", all=%"PRIi32""
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pci_nvme_finish_zone(uint64_t slba, uint32_t zone_idx, int all) "finish zone, slba=%"PRIu64", idx=%"PRIu32", all=%"PRIi32""
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