Commit 312a6511 authored by Changpeng Liu's avatar Changpeng Liu Committed by Tomasz Zawadzki
Browse files

module/vfu_virtio: add IO path debug flag 



The new flag is used in the data processing path.

Change-Id: I93dfc00003d370f8505cc3d334aea161024e2435
Signed-off-by: default avatarChangpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16265


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <smatsumoto@nvidia.com>
parent a6b62f32

module/vfu_device/vfu_virtio.c

+13 −12
Original line number Diff line number Diff line
@@ -343,7 +343,7 @@ virtio_dev_split_get_avail_reqs(struct vfu_virtio_dev *dev, struct vfu_virtio_vq 
		reqs[i] = vq->avail.avail->ring[(last_idx + i) & (vq->qsize - 1)];

	}



	SPDK_DEBUGLOG(vfu_virtio,

	SPDK_DEBUGLOG(vfu_virtio_io,

		      "AVAIL: vq %u last_idx=%"PRIu16" avail_idx=%"PRIu16" count=%"PRIu16"\n",

		      vq->id, last_idx, avail_idx, count);
@@ -545,7 +545,7 @@ virtio_vq_used_ring_split_enqueue(struct vfu_virtio_vq *vq, uint16_t req_idx, ui 
{

	uint16_t last_idx = vq->last_used_idx & (vq->qsize - 1);



	SPDK_DEBUGLOG(vfu_virtio,

	SPDK_DEBUGLOG(vfu_virtio_io,

		      "Queue %u - USED RING: last_idx=%"PRIu16" req_idx=%"PRIu16" used_len=%"PRIu32"\n",

		      vq->id, last_idx, req_idx, used_len);
@@ -566,7 +566,7 @@ virtio_vq_used_ring_packed_enqueue(struct vfu_virtio_vq *vq, uint16_t buffer_id, 
{

	struct vring_packed_desc *desc = &vq->desc.desc_packed[vq->last_used_idx];



	SPDK_DEBUGLOG(vfu_virtio,

	SPDK_DEBUGLOG(vfu_virtio_io,

		      "Queue %u - USED RING: buffer_id=%"PRIu16" num_descs=%u used_len=%"PRIu32"\n",

		      vq->id, buffer_id, num_descs, used_len);
@@ -627,18 +627,18 @@ vfu_virtio_vq_post_irq(struct vfu_virtio_dev *dev, struct vfu_virtio_vq *vq) 
	vq->used_req_cnt = 0;



	if (spdk_vfu_endpoint_msix_enabled(virtio_endpoint->endpoint)) {

		SPDK_DEBUGLOG(vfu_virtio, "%s: Queue %u post MSIX IV %u\n",

		SPDK_DEBUGLOG(vfu_virtio_io, "%s: Queue %u post MSIX IV %u\n",

			      spdk_vfu_get_endpoint_id(virtio_endpoint->endpoint),

			      vq->id, vq->vector);

		return vfu_irq_trigger(vfu_ctx, vq->vector);

	} else {

		if (!spdk_vfu_endpoint_intx_enabled(virtio_endpoint->endpoint)) {

			SPDK_DEBUGLOG(vfu_virtio, "%s: IRQ disabled\n",

			SPDK_DEBUGLOG(vfu_virtio_io, "%s: IRQ disabled\n",

				      spdk_vfu_get_endpoint_id(virtio_endpoint->endpoint));

			return 0;

		}



		SPDK_DEBUGLOG(vfu_virtio, "%s: Queue %u post ISR\n",

		SPDK_DEBUGLOG(vfu_virtio_io, "%s: Queue %u post ISR\n",

			      spdk_vfu_get_endpoint_id(virtio_endpoint->endpoint), vq->id);

		dev->cfg.isr = 1;

		return vfu_irq_trigger(vfu_ctx, 0);
@@ -691,7 +691,7 @@ vfu_virito_dev_process_split_ring(struct vfu_virtio_dev *dev, struct vfu_virtio_ 
		return 0;

	}



	SPDK_DEBUGLOG(vfu_virtio, "%s: get %u descriptors\n", dev->name, reqs_cnt);

	SPDK_DEBUGLOG(vfu_virtio_io, "%s: get %u descriptors\n", dev->name, reqs_cnt);



	for (i = 0; i < reqs_cnt; i++) {

		req = vfu_virtio_dev_get_req(virtio_endpoint, vq);
@@ -731,7 +731,7 @@ virito_dev_split_ring_get_next_avail_req(struct vfu_virtio_dev *dev, struct vfu_ 
	}

	assert(reqs_cnt == 1);



	SPDK_DEBUGLOG(vfu_virtio, "%s: get 1 descriptors\n", dev->name);

	SPDK_DEBUGLOG(vfu_virtio_io, "%s: get 1 descriptors\n", dev->name);



	req = vfu_virtio_dev_get_req(virtio_endpoint, vq);

	if (!req) {
@@ -769,7 +769,7 @@ virtio_dev_packed_iovs_setup(struct vfu_virtio_dev *dev, struct vfu_virtio_vq *v 
	uint16_t new_idx, num_descs, desc_table_size = 0;

	uint32_t len = 0;



	SPDK_DEBUGLOG(vfu_virtio, "%s: last avail idx %u, req %p\n", dev->name, last_avail_idx, req);

	SPDK_DEBUGLOG(vfu_virtio_io, "%s: last avail idx %u, req %p\n", dev->name, last_avail_idx, req);



	desc = NULL;

	num_descs = 1;
@@ -783,7 +783,7 @@ virtio_dev_packed_iovs_setup(struct vfu_virtio_dev *dev, struct vfu_virtio_vq *v 
		}

		desc_table_size = current_desc->len / sizeof(struct vring_packed_desc);

		desc = desc_table;

		SPDK_DEBUGLOG(vfu_virtio, "%s: indirect desc %p, desc size %u, req %p\n",

		SPDK_DEBUGLOG(vfu_virtio_io, "%s: indirect desc %p, desc size %u, req %p\n",

			      dev->name, desc_table, desc_table_size, req);

	} else {

		desc = current_desc;
@@ -844,7 +844,7 @@ virtio_dev_packed_iovs_setup(struct vfu_virtio_dev *dev, struct vfu_virtio_vq *v 


	req->payload_size = len;



	SPDK_DEBUGLOG(vfu_virtio, "%s: req %p, iovcnt %u, num_descs %u\n",

	SPDK_DEBUGLOG(vfu_virtio_io, "%s: req %p, iovcnt %u, num_descs %u\n",

		      dev->name, req, req->iovcnt, num_descs);

	return 0;

}
@@ -900,7 +900,7 @@ virito_dev_packed_ring_get_next_avail_req(struct vfu_virtio_dev *dev, struct vfu 
		return NULL;

	}



	SPDK_DEBUGLOG(vfu_virtio, "%s: get 1 descriptors\n", dev->name);

	SPDK_DEBUGLOG(vfu_virtio_io, "%s: get 1 descriptors\n", dev->name);



	req = vfu_virtio_dev_get_req(virtio_endpoint, vq);

	if (!req) {
@@ -1775,3 +1775,4 @@ vfu_virtio_get_vendor_capability(struct spdk_vfu_endpoint *endpoint, char *buf, 
}



SPDK_LOG_REGISTER_COMPONENT(vfu_virtio)

SPDK_LOG_REGISTER_COMPONENT(vfu_virtio_io)