[PATCH v3 1/7] event/dlb2: fix addresses deq failure when CQ depth <= 16

[PATCH v3 1/7] event/dlb2: fix addresses deq failure when CQ depth <= 16

[Pravin Pathak]

When application configures a DIR port with CQ depth less than 8, DLB PMD
sets port's cq_depth as 8 and token reservation is used to make the
effective cq_depth smaller. However, while setting port's cq_depth_mask
application configured CQ depth was used resulting in reading incorrect
cachelines while dequeuing. Use PMD calculated CQ depth for cq_depth_mask
calculation.

Fixes: 3a6d0c04e7fb3e ("event/dlb2: add port setup")
Cc: stable@dpdk.org

Signed-off-by: Pravin Pathak <pravin.pathak@intel.com>
Signed-off-by: Tirthendu Sarkar <tirthendu.sarkar@intel.com>
---
 drivers/event/dlb2/dlb2.c       | 4 ++--
 drivers/event/dlb2/pf/dlb2_pf.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/event/dlb2/dlb2.c b/drivers/event/dlb2/dlb2.c
index 286241ea41..a0e673b96b 100644
--- a/drivers/event/dlb2/dlb2.c
+++ b/drivers/event/dlb2/dlb2.c
@@ -1951,9 +1951,9 @@ dlb2_hw_create_dir_port(struct dlb2_eventdev *dlb2,
 	qm_port->cq_idx_unmasked = 0;
 
 	if (dlb2->poll_mode == DLB2_CQ_POLL_MODE_SPARSE)
-		qm_port->cq_depth_mask = (cfg.cq_depth * 4) - 1;
+		qm_port->cq_depth_mask = (qm_port->cq_depth * 4) - 1;
 	else
-		qm_port->cq_depth_mask = cfg.cq_depth - 1;
+		qm_port->cq_depth_mask = qm_port->cq_depth - 1;
 
 	qm_port->gen_bit_shift = rte_popcount32(qm_port->cq_depth_mask);
 	/* starting value of gen bit - it toggles at wrap time */
diff --git a/drivers/event/dlb2/pf/dlb2_pf.c b/drivers/event/dlb2/pf/dlb2_pf.c
index ed4e6e424c..31b5487d85 100644
--- a/drivers/event/dlb2/pf/dlb2_pf.c
+++ b/drivers/event/dlb2/pf/dlb2_pf.c
@@ -400,7 +400,7 @@ dlb2_pf_dir_port_create(struct dlb2_hw_dev *handle,
 	/* Calculate the port memory required, and round up to the nearest
 	 * cache line.
 	 */
-	alloc_sz = cfg->cq_depth * qe_sz;
+	alloc_sz = RTE_MAX(cfg->cq_depth, DLB2_MIN_HARDWARE_CQ_DEPTH) * qe_sz;
 	alloc_sz = RTE_CACHE_LINE_ROUNDUP(alloc_sz);
 
 	port_base = dlb2_alloc_coherent_aligned(&mz, &cq_base, alloc_sz,
-- 
2.39.1

[PATCH v3 2/7] event/dlb2: fix validaton of LDB port COS ID arguments

[Pravin Pathak]

While providing port_cos as vdev/pf CLI argument, the port numbers should
take into account all ports (LDB and DIR) that are created by the
application and the same order should be provided for port_cos parameter.
This fix add checks to ensure that above is validated correctly.

Fixes: bec8901bfe9f ("event/dlb2: support ldb port specific COS")
Cc: stable@dpdk.org

Signed-off-by: Pravin Pathak <pravin.pathak@intel.com>
---
 drivers/event/dlb2/dlb2.c      | 32 +++++++++++++++++++++++---------
 drivers/event/dlb2/dlb2_priv.h |  1 -
 2 files changed, 23 insertions(+), 10 deletions(-)

diff --git a/drivers/event/dlb2/dlb2.c b/drivers/event/dlb2/dlb2.c
index a0e673b96b..58eb27f495 100644
--- a/drivers/event/dlb2/dlb2.c
+++ b/drivers/event/dlb2/dlb2.c
@@ -194,10 +194,8 @@ dlb2_init_port_cos(struct dlb2_eventdev *dlb2, int *port_cos)
 	for (q = 0; q < DLB2_MAX_NUM_PORTS_ALL; q++) {
 		dlb2->ev_ports[q].cos_id = port_cos[q];
 		if (port_cos[q] != DLB2_COS_DEFAULT &&
-		    dlb2->cos_ports[port_cos[q]] < DLB2_MAX_NUM_LDB_PORTS_PER_COS) {
+		    dlb2->cos_ports[port_cos[q]] < DLB2_MAX_NUM_LDB_PORTS_PER_COS)
 			dlb2->cos_ports[port_cos[q]]++;
-			dlb2->max_cos_port = q;
-		}
 	}
 }
 
@@ -531,8 +529,8 @@ set_port_cos(const char *key __rte_unused,
 	     const char *value,
 	     void *opaque)
 {
+	int first, last, cos_id, i, ports_per_cos[DLB2_COS_NUM_VALS] = {0};
 	struct dlb2_port_cos *port_cos = opaque;
-	int first, last, cos_id, i;
 
 	if (value == NULL || opaque == NULL) {
 		DLB2_LOG_ERR("NULL pointer");
@@ -566,6 +564,14 @@ set_port_cos(const char *key __rte_unused,
 	for (i = first; i <= last; i++)
 		port_cos->cos_id[i] = cos_id; /* indexed by port */
 
+	for (i = 0; i < DLB2_MAX_NUM_PORTS_ALL; i++)
+		if (port_cos->cos_id[i] != DLB2_COS_DEFAULT &&
+			++ports_per_cos[port_cos->cos_id[i]] > DLB2_MAX_NUM_LDB_PORTS_PER_COS) {
+			DLB2_LOG_ERR("Error parsing ldb port cos_id devarg: More than 16 ports for "
+				"cos_id %d.", port_cos->cos_id[i]);
+			return -EINVAL;
+		}
+
 	return 0;
 }
 
@@ -866,9 +872,10 @@ dlb2_hw_create_sched_domain(struct dlb2_eventdev *dlb2,
 			    const struct dlb2_hw_rsrcs *resources_asked,
 			    uint8_t device_version)
 {
-	int ret = 0;
-	uint32_t cos_ports = 0;
+	uint32_t total_asked_ports;
 	struct dlb2_create_sched_domain_args *cfg;
+	uint32_t cos_ports = 0, max_cos_port = 0;
+	int ret = 0;
 
 	if (resources_asked == NULL) {
 		DLB2_LOG_ERR("dlb2: dlb2_create NULL parameter");
@@ -876,6 +883,8 @@ dlb2_hw_create_sched_domain(struct dlb2_eventdev *dlb2,
 		goto error_exit;
 	}
 
+	total_asked_ports = resources_asked->num_ldb_ports + resources_asked->num_dir_ports;
+
 	/* Map generic qm resources to dlb2 resources */
 	cfg = &handle->cfg.resources;
 
@@ -897,9 +906,14 @@ dlb2_hw_create_sched_domain(struct dlb2_eventdev *dlb2,
 	cos_ports = dlb2->cos_ports[0] + dlb2->cos_ports[1] +
 		    dlb2->cos_ports[2] + dlb2->cos_ports[3];
 
-	if (cos_ports > resources_asked->num_ldb_ports ||
-	    (cos_ports && dlb2->max_cos_port >= resources_asked->num_ldb_ports)) {
-		DLB2_LOG_ERR("dlb2: num_ldb_ports < cos_ports");
+	for (int i = 0; i < DLB2_MAX_NUM_PORTS_ALL; i++) {
+		if (dlb2->ev_ports[i].cos_id != DLB2_COS_DEFAULT)
+			max_cos_port = i;
+	}
+
+	if (cos_ports > resources_asked->num_ldb_ports || max_cos_port >= total_asked_ports) {
+		DLB2_LOG_ERR("dlb2: Insufficient num_ldb_ports=%d: cos_ports=%d max_cos_port=%d",
+			resources_asked->num_ldb_ports, cos_ports, max_cos_port);
 		ret = EINVAL;
 		goto error_exit;
 	}
diff --git a/drivers/event/dlb2/dlb2_priv.h b/drivers/event/dlb2/dlb2_priv.h
index 4dd7532519..285d427397 100644
--- a/drivers/event/dlb2/dlb2_priv.h
+++ b/drivers/event/dlb2/dlb2_priv.h
@@ -649,7 +649,6 @@ struct dlb2_eventdev {
 	};
 	uint32_t cos_ports[DLB2_COS_NUM_VALS]; /* total ldb ports in each class */
 	uint32_t cos_bw[DLB2_COS_NUM_VALS]; /* bandwidth per cos domain */
-	uint8_t max_cos_port; /* Max LDB port from any cos */
 	bool enable_cq_weight;
 };
 
-- 
2.39.1

[PATCH v3 3/7] event/dlb2: fix num single link ports for DLB2.5

[Pravin Pathak]

DLB 2.0 device has 64 single linked or directed ports.
DLB 2.5 device has 96 single linked ports.
This commit fixes issue of rte_event_dev_info_get returning 64
instead of 96 single link ports for DLB2.5

Fixes: 4ce7bf9ec1c7 ("event/dlb2: add v2.5 get resources")
Cc: stable@dpdk.org

Signed-off-by: Pravin Pathak <pravin.pathak@intel.com>
---
 drivers/event/dlb2/dlb2.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/event/dlb2/dlb2.c b/drivers/event/dlb2/dlb2.c
index 58eb27f495..24c56a7968 100644
--- a/drivers/event/dlb2/dlb2.c
+++ b/drivers/event/dlb2/dlb2.c
@@ -241,16 +241,16 @@ dlb2_hw_query_resources(struct dlb2_eventdev *dlb2)
 	 * The capabilities (CAPs) were set at compile time.
 	 */
 
-	if (dlb2->max_cq_depth != DLB2_DEFAULT_CQ_DEPTH)
-		num_ldb_ports = DLB2_MAX_HL_ENTRIES / dlb2->max_cq_depth;
-	else
-		num_ldb_ports = dlb2->hw_rsrc_query_results.num_ldb_ports;
+	num_ldb_ports = dlb2->hw_rsrc_query_results.num_ldb_ports;
 
 	evdev_dlb2_default_info.max_event_queues =
 		dlb2->hw_rsrc_query_results.num_ldb_queues;
 
 	evdev_dlb2_default_info.max_event_ports = num_ldb_ports;
 
+	evdev_dlb2_default_info.max_single_link_event_port_queue_pairs =
+		dlb2->hw_rsrc_query_results.num_dir_ports;
+
 	if (dlb2->version == DLB2_HW_V2_5) {
 		evdev_dlb2_default_info.max_num_events =
 			dlb2->hw_rsrc_query_results.num_credits;
-- 
2.39.1

[PATCH v3 5/7] event/dlb2: fix to avoid credit release race condition

[Pravin Pathak]

While unlinking ports, all associated credits should be released.
This commit avoids race condition when main thread is unlinking
while workers are running.

Fixes: a29248b57b31 ("event/dlb2: add port unlink and unlinks in progress")
Cc: stable@dpdk.org

Signed-off-by: Pravin Pathak <pravin.pathak@intel.com>
---
 drivers/event/dlb2/dlb2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/event/dlb2/dlb2.c b/drivers/event/dlb2/dlb2.c
index 28c9054f63..6734e93eac 100644
--- a/drivers/event/dlb2/dlb2.c
+++ b/drivers/event/dlb2/dlb2.c
@@ -2664,7 +2664,7 @@ dlb2_eventdev_port_unlink(struct rte_eventdev *dev, void *event_port,
 		DLB2_LOG_LINE_DBG("dlb2: ignore unlink from dir port %d",
 			     ev_port->id);
 		rte_errno = 0;
-		return nb_unlinks; /* as if success */
+		goto ret_credits;
 	}
 
 	dlb2 = ev_port->dlb2;
-- 
2.39.1

[PATCH v3 6/7] event/dlb2: fix qid depth xstat in vector path

[Pravin Pathak]

update QID depth xstats counter in vector dequeue path

Fixes: 000a7b8e7582 ("event/dlb2: optimize dequeue operation")
Cc: stable@dpdk.org

Signed-off-by: Pravin Pathak <pravin.pathak@intel.com>
---
 drivers/event/dlb2/dlb2.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/event/dlb2/dlb2.c b/drivers/event/dlb2/dlb2.c
index 6734e93eac..6dfb345de8 100644
--- a/drivers/event/dlb2/dlb2.c
+++ b/drivers/event/dlb2/dlb2.c
@@ -4138,6 +4138,8 @@ _process_deq_qes_vec_impl(struct dlb2_port *qm_port,
 		_mm_storeu_si128((__m128i *)&events[3], v_ev_3);
 		DLB2_INC_STAT(qm_port->ev_port->stats.rx_sched_cnt[hw_sched3],
 			      1);
+		DLB2_INC_STAT(qm_port->ev_port->stats.queue[ev_qid3].\
+			qid_depth[RTE_PMD_DLB2_GET_QID_DEPTH(&events[3])], 1);
 		/* fallthrough */
 	case 3:
 		v_ev_2 = _mm_unpacklo_epi64(v_unpk_ev_23, v_qe_2);
@@ -4145,6 +4147,8 @@ _process_deq_qes_vec_impl(struct dlb2_port *qm_port,
 		_mm_storeu_si128((__m128i *)&events[2], v_ev_2);
 		DLB2_INC_STAT(qm_port->ev_port->stats.rx_sched_cnt[hw_sched2],
 			      1);
+		DLB2_INC_STAT(qm_port->ev_port->stats.queue[ev_qid2].\
+			qid_depth[RTE_PMD_DLB2_GET_QID_DEPTH(&events[2])], 1);
 		/* fallthrough */
 	case 2:
 		v_ev_1 = _mm_blend_epi16(v_unpk_ev_01, v_qe_1, 0x0F);
@@ -4153,6 +4157,8 @@ _process_deq_qes_vec_impl(struct dlb2_port *qm_port,
 		_mm_storeu_si128((__m128i *)&events[1], v_ev_1);
 		DLB2_INC_STAT(qm_port->ev_port->stats.rx_sched_cnt[hw_sched1],
 			      1);
+		DLB2_INC_STAT(qm_port->ev_port->stats.queue[ev_qid1].\
+			qid_depth[RTE_PMD_DLB2_GET_QID_DEPTH(&events[1])], 1);
 		/* fallthrough */
 	case 1:
 		v_ev_0 = _mm_unpacklo_epi64(v_unpk_ev_01, v_qe_0);
@@ -4160,6 +4166,8 @@ _process_deq_qes_vec_impl(struct dlb2_port *qm_port,
 		_mm_storeu_si128((__m128i *)&events[0], v_ev_0);
 		DLB2_INC_STAT(qm_port->ev_port->stats.rx_sched_cnt[hw_sched0],
 			      1);
+		DLB2_INC_STAT(qm_port->ev_port->stats.queue[ev_qid0].\
+			qid_depth[RTE_PMD_DLB2_GET_QID_DEPTH(&events[0])], 1);
 	}
 	qm_port->reorder_id += valid_events;
 }
-- 
2.39.1

[PATCH v3 7/7] event/dlb2: fix default credits based on HW version

[Pravin Pathak]

From: Tirthendu Sarkar <tirthendu.sarkar@intel.com>

dlb2_eventdev_info_get() that implements rte_event_dev_info_get() should
return the maximum available credits as supported by HW.

Set maximum credits before device probing by checking HW version.

Fixes: b66a418d2ad3 ("event/dlb2: add v2.5 probe")
Cc: stable@dpdk.org

Signed-off-by: Tirthendu Sarkar <tirthendu.sarkar@intel.com>
---
 drivers/event/dlb2/pf/dlb2_pf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/event/dlb2/pf/dlb2_pf.c b/drivers/event/dlb2/pf/dlb2_pf.c
index a3f3e7f803..6c273742c9 100644
--- a/drivers/event/dlb2/pf/dlb2_pf.c
+++ b/drivers/event/dlb2/pf/dlb2_pf.c
@@ -756,6 +756,8 @@ dlb2_eventdev_pci_init(struct rte_eventdev *eventdev)
 	if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 		dlb2 = dlb2_pmd_priv(eventdev); /* rte_zmalloc_socket mem */
 		dlb2->version = DLB2_HW_DEVICE_FROM_PCI_ID(pci_dev);
+		if (dlb2->version == DLB2_HW_V2_5)
+			dlb2_args.max_num_events = DLB2_MAX_NUM_CREDITS(DLB2_HW_V2_5);
 
 		/* Were we invoked with runtime parameters? */
 		if (pci_dev->device.devargs) {
-- 
2.39.1

[PATCH v4 1/7] event/dlb2: fix addresses deq failure when CQ depth <= 16

[Pravin Pathak]

When application configures a DIR port with CQ depth less than 8, DLB PMD
sets port's cq_depth as 8 and token reservation is used to make the
effective cq_depth smaller. However, while setting port's cq_depth_mask
application configured CQ depth was used resulting in reading incorrect
cachelines while dequeuing. Use PMD calculated CQ depth for cq_depth_mask
calculation.

Fixes: 3a6d0c04e7fb3e ("event/dlb2: add port setup")
Cc: stable@dpdk.org

Signed-off-by: Pravin Pathak <pravin.pathak@intel.com>
Signed-off-by: Tirthendu Sarkar <tirthendu.sarkar@intel.com>
---
 drivers/event/dlb2/dlb2.c       | 4 ++--
 drivers/event/dlb2/pf/dlb2_pf.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/event/dlb2/dlb2.c b/drivers/event/dlb2/dlb2.c
index 08291b10b8..bec1e88074 100644
--- a/drivers/event/dlb2/dlb2.c
+++ b/drivers/event/dlb2/dlb2.c
@@ -1951,9 +1951,9 @@ dlb2_hw_create_dir_port(struct dlb2_eventdev *dlb2,
 	qm_port->cq_idx_unmasked = 0;
 
 	if (dlb2->poll_mode == DLB2_CQ_POLL_MODE_SPARSE)
-		qm_port->cq_depth_mask = (cfg.cq_depth * 4) - 1;
+		qm_port->cq_depth_mask = (qm_port->cq_depth * 4) - 1;
 	else
-		qm_port->cq_depth_mask = cfg.cq_depth - 1;
+		qm_port->cq_depth_mask = qm_port->cq_depth - 1;
 
 	qm_port->gen_bit_shift = rte_popcount32(qm_port->cq_depth_mask);
 	/* starting value of gen bit - it toggles at wrap time */
diff --git a/drivers/event/dlb2/pf/dlb2_pf.c b/drivers/event/dlb2/pf/dlb2_pf.c
index ac432b81ad..cd2788c035 100644
--- a/drivers/event/dlb2/pf/dlb2_pf.c
+++ b/drivers/event/dlb2/pf/dlb2_pf.c
@@ -427,7 +427,7 @@ dlb2_pf_dir_port_create(struct dlb2_hw_dev *handle,
 	/* Calculate the port memory required, and round up to the nearest
 	 * cache line.
 	 */
-	alloc_sz = cfg->cq_depth * qe_sz;
+	alloc_sz = RTE_MAX(cfg->cq_depth, DLB2_MIN_HARDWARE_CQ_DEPTH) * qe_sz;
 	alloc_sz = RTE_CACHE_LINE_ROUNDUP(alloc_sz);
 
 	port_base = dlb2_alloc_coherent_aligned(&mz, &cq_base, alloc_sz,
-- 
2.39.1

[PATCH v4 2/7] event/dlb2: fix validaton of LDB port COS ID arguments

[Pravin Pathak]

While providing port_cos as vdev/pf CLI argument, the port numbers should
take into account all ports (LDB and DIR) that are created by the
application and the same order should be provided for port_cos parameter.
This fix add checks to ensure that above is validated correctly.

Fixes: bec8901bfe9f ("event/dlb2: support ldb port specific COS")
Cc: stable@dpdk.org

Signed-off-by: Pravin Pathak <pravin.pathak@intel.com>
---
 drivers/event/dlb2/dlb2.c      | 32 +++++++++++++++++++++++---------
 drivers/event/dlb2/dlb2_priv.h |  1 -
 2 files changed, 23 insertions(+), 10 deletions(-)

diff --git a/drivers/event/dlb2/dlb2.c b/drivers/event/dlb2/dlb2.c
index bec1e88074..8722e62948 100644
--- a/drivers/event/dlb2/dlb2.c
+++ b/drivers/event/dlb2/dlb2.c
@@ -194,10 +194,8 @@ dlb2_init_port_cos(struct dlb2_eventdev *dlb2, int *port_cos)
 	for (q = 0; q < DLB2_MAX_NUM_PORTS_ALL; q++) {
 		dlb2->ev_ports[q].cos_id = port_cos[q];
 		if (port_cos[q] != DLB2_COS_DEFAULT &&
-		    dlb2->cos_ports[port_cos[q]] < DLB2_MAX_NUM_LDB_PORTS_PER_COS) {
+		    dlb2->cos_ports[port_cos[q]] < DLB2_MAX_NUM_LDB_PORTS_PER_COS)
 			dlb2->cos_ports[port_cos[q]]++;
-			dlb2->max_cos_port = q;
-		}
 	}
 }
 
@@ -531,8 +529,8 @@ set_port_cos(const char *key __rte_unused,
 	     const char *value,
 	     void *opaque)
 {
+	int first, last, cos_id, i, ports_per_cos[DLB2_COS_NUM_VALS] = {0};
 	struct dlb2_port_cos *port_cos = opaque;
-	int first, last, cos_id, i;
 
 	if (value == NULL || opaque == NULL) {
 		DLB2_LOG_ERR("NULL pointer");
@@ -566,6 +564,14 @@ set_port_cos(const char *key __rte_unused,
 	for (i = first; i <= last; i++)
 		port_cos->cos_id[i] = cos_id; /* indexed by port */
 
+	for (i = 0; i < DLB2_MAX_NUM_PORTS_ALL; i++)
+		if (port_cos->cos_id[i] != DLB2_COS_DEFAULT &&
+			++ports_per_cos[port_cos->cos_id[i]] > DLB2_MAX_NUM_LDB_PORTS_PER_COS) {
+			DLB2_LOG_ERR("Error parsing ldb port cos_id devarg: More than 16 ports for "
+				"cos_id %d.", port_cos->cos_id[i]);
+			return -EINVAL;
+		}
+
 	return 0;
 }
 
@@ -866,9 +872,10 @@ dlb2_hw_create_sched_domain(struct dlb2_eventdev *dlb2,
 			    const struct dlb2_hw_rsrcs *resources_asked,
 			    uint8_t device_version)
 {
-	int ret = 0;
-	uint32_t cos_ports = 0;
+	uint32_t total_asked_ports;
 	struct dlb2_create_sched_domain_args *cfg;
+	uint32_t cos_ports = 0, max_cos_port = 0;
+	int ret = 0;
 
 	if (resources_asked == NULL) {
 		DLB2_LOG_ERR("dlb2: dlb2_create NULL parameter");
@@ -876,6 +883,8 @@ dlb2_hw_create_sched_domain(struct dlb2_eventdev *dlb2,
 		goto error_exit;
 	}
 
+	total_asked_ports = resources_asked->num_ldb_ports + resources_asked->num_dir_ports;
+
 	/* Map generic qm resources to dlb2 resources */
 	cfg = &handle->cfg.resources;
 
@@ -897,9 +906,14 @@ dlb2_hw_create_sched_domain(struct dlb2_eventdev *dlb2,
 	cos_ports = dlb2->cos_ports[0] + dlb2->cos_ports[1] +
 		    dlb2->cos_ports[2] + dlb2->cos_ports[3];
 
-	if (cos_ports > resources_asked->num_ldb_ports ||
-	    (cos_ports && dlb2->max_cos_port >= resources_asked->num_ldb_ports)) {
-		DLB2_LOG_ERR("dlb2: num_ldb_ports < cos_ports");
+	for (int i = 0; i < DLB2_MAX_NUM_PORTS_ALL; i++) {
+		if (dlb2->ev_ports[i].cos_id != DLB2_COS_DEFAULT)
+			max_cos_port = i;
+	}
+
+	if (cos_ports > resources_asked->num_ldb_ports || max_cos_port >= total_asked_ports) {
+		DLB2_LOG_ERR("dlb2: Insufficient num_ldb_ports=%d: cos_ports=%d max_cos_port=%d",
+			resources_asked->num_ldb_ports, cos_ports, max_cos_port);
 		ret = EINVAL;
 		goto error_exit;
 	}
diff --git a/drivers/event/dlb2/dlb2_priv.h b/drivers/event/dlb2/dlb2_priv.h
index 4dd7532519..285d427397 100644
--- a/drivers/event/dlb2/dlb2_priv.h
+++ b/drivers/event/dlb2/dlb2_priv.h
@@ -649,7 +649,6 @@ struct dlb2_eventdev {
 	};
 	uint32_t cos_ports[DLB2_COS_NUM_VALS]; /* total ldb ports in each class */
 	uint32_t cos_bw[DLB2_COS_NUM_VALS]; /* bandwidth per cos domain */
-	uint8_t max_cos_port; /* Max LDB port from any cos */
 	bool enable_cq_weight;
 };
 
-- 
2.39.1

[PATCH v4 3/7] event/dlb2: fix num single link ports for DLB2.5

[Pravin Pathak]

DLB 2.0 device has 64 single linked or directed ports.
DLB 2.5 device has 96 single linked ports.
This commit fixes issue of rte_event_dev_info_get returning 64
instead of 96 single link ports for DLB2.5

Fixes: 4ce7bf9ec1c7 ("event/dlb2: add v2.5 get resources")
Cc: stable@dpdk.org

Signed-off-by: Pravin Pathak <pravin.pathak@intel.com>
---
 drivers/event/dlb2/dlb2.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/event/dlb2/dlb2.c b/drivers/event/dlb2/dlb2.c
index 8722e62948..69dc3cf7c9 100644
--- a/drivers/event/dlb2/dlb2.c
+++ b/drivers/event/dlb2/dlb2.c
@@ -241,16 +241,16 @@ dlb2_hw_query_resources(struct dlb2_eventdev *dlb2)
 	 * The capabilities (CAPs) were set at compile time.
 	 */
 
-	if (dlb2->max_cq_depth != DLB2_DEFAULT_CQ_DEPTH)
-		num_ldb_ports = DLB2_MAX_HL_ENTRIES / dlb2->max_cq_depth;
-	else
-		num_ldb_ports = dlb2->hw_rsrc_query_results.num_ldb_ports;
+	num_ldb_ports = dlb2->hw_rsrc_query_results.num_ldb_ports;
 
 	evdev_dlb2_default_info.max_event_queues =
 		dlb2->hw_rsrc_query_results.num_ldb_queues;
 
 	evdev_dlb2_default_info.max_event_ports = num_ldb_ports;
 
+	evdev_dlb2_default_info.max_single_link_event_port_queue_pairs =
+		dlb2->hw_rsrc_query_results.num_dir_ports;
+
 	if (dlb2->version == DLB2_HW_V2_5) {
 		evdev_dlb2_default_info.max_num_events =
 			dlb2->hw_rsrc_query_results.num_credits;
-- 
2.39.1

[PATCH v4 5/7] event/dlb2: fix to avoid credit release race condition

[Pravin Pathak]

While unlinking ports, all associated credits should be released.
This commit avoids race condition when main thread is unlinking
while workers are running.

Fixes: a29248b57b31 ("event/dlb2: add port unlink and unlinks in progress")
Cc: stable@dpdk.org

Signed-off-by: Pravin Pathak <pravin.pathak@intel.com>
---
 drivers/event/dlb2/dlb2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/event/dlb2/dlb2.c b/drivers/event/dlb2/dlb2.c
index 52edb75fa0..f9bdfb3503 100644
--- a/drivers/event/dlb2/dlb2.c
+++ b/drivers/event/dlb2/dlb2.c
@@ -2664,7 +2664,7 @@ dlb2_eventdev_port_unlink(struct rte_eventdev *dev, void *event_port,
 		DLB2_LOG_LINE_DBG("dlb2: ignore unlink from dir port %d",
 			     ev_port->id);
 		rte_errno = 0;
-		return nb_unlinks; /* as if success */
+		goto ret_credits;
 	}
 
 	dlb2 = ev_port->dlb2;
-- 
2.39.1

[PATCH v4 6/7] event/dlb2: fix qid depth xstat in vector path

[Pravin Pathak]

update QID depth xstats counter in vector dequeue path

Fixes: 000a7b8e7582 ("event/dlb2: optimize dequeue operation")
Cc: stable@dpdk.org

Signed-off-by: Pravin Pathak <pravin.pathak@intel.com>
---
 drivers/event/dlb2/dlb2.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/event/dlb2/dlb2.c b/drivers/event/dlb2/dlb2.c
index f9bdfb3503..fd8cc70f3c 100644
--- a/drivers/event/dlb2/dlb2.c
+++ b/drivers/event/dlb2/dlb2.c
@@ -4145,6 +4145,8 @@ _process_deq_qes_vec_impl(struct dlb2_port *qm_port,
 		_mm_storeu_si128((__m128i *)&events[3], v_ev_3);
 		DLB2_INC_STAT(qm_port->ev_port->stats.rx_sched_cnt[hw_sched3],
 			      1);
+		DLB2_INC_STAT(qm_port->ev_port->stats.queue[ev_qid3].\
+			qid_depth[RTE_PMD_DLB2_GET_QID_DEPTH(&events[3])], 1);
 		/* fallthrough */
 	case 3:
 		v_ev_2 = _mm_unpacklo_epi64(v_unpk_ev_23, v_qe_2);
@@ -4152,6 +4154,8 @@ _process_deq_qes_vec_impl(struct dlb2_port *qm_port,
 		_mm_storeu_si128((__m128i *)&events[2], v_ev_2);
 		DLB2_INC_STAT(qm_port->ev_port->stats.rx_sched_cnt[hw_sched2],
 			      1);
+		DLB2_INC_STAT(qm_port->ev_port->stats.queue[ev_qid2].\
+			qid_depth[RTE_PMD_DLB2_GET_QID_DEPTH(&events[2])], 1);
 		/* fallthrough */
 	case 2:
 		v_ev_1 = _mm_blend_epi16(v_unpk_ev_01, v_qe_1, 0x0F);
@@ -4160,6 +4164,8 @@ _process_deq_qes_vec_impl(struct dlb2_port *qm_port,
 		_mm_storeu_si128((__m128i *)&events[1], v_ev_1);
 		DLB2_INC_STAT(qm_port->ev_port->stats.rx_sched_cnt[hw_sched1],
 			      1);
+		DLB2_INC_STAT(qm_port->ev_port->stats.queue[ev_qid1].\
+			qid_depth[RTE_PMD_DLB2_GET_QID_DEPTH(&events[1])], 1);
 		/* fallthrough */
 	case 1:
 		v_ev_0 = _mm_unpacklo_epi64(v_unpk_ev_01, v_qe_0);
@@ -4167,6 +4173,8 @@ _process_deq_qes_vec_impl(struct dlb2_port *qm_port,
 		_mm_storeu_si128((__m128i *)&events[0], v_ev_0);
 		DLB2_INC_STAT(qm_port->ev_port->stats.rx_sched_cnt[hw_sched0],
 			      1);
+		DLB2_INC_STAT(qm_port->ev_port->stats.queue[ev_qid0].\
+			qid_depth[RTE_PMD_DLB2_GET_QID_DEPTH(&events[0])], 1);
 	}
 	qm_port->reorder_id += valid_events;
 }
-- 
2.39.1

[PATCH v4 7/7] event/dlb2: fix default credits based on HW version

[Pravin Pathak]

From: Tirthendu Sarkar <tirthendu.sarkar@intel.com>

dlb2_eventdev_info_get() that implements rte_event_dev_info_get() should
return the maximum available credits as supported by HW.

Set maximum credits before device probing by checking HW version.

Fixes: b66a418d2ad3 ("event/dlb2: add v2.5 probe")
Cc: stable@dpdk.org

Signed-off-by: Tirthendu Sarkar <tirthendu.sarkar@intel.com>
---
 drivers/event/dlb2/pf/dlb2_pf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/event/dlb2/pf/dlb2_pf.c b/drivers/event/dlb2/pf/dlb2_pf.c
index 15a06bee4f..edcdfb319f 100644
--- a/drivers/event/dlb2/pf/dlb2_pf.c
+++ b/drivers/event/dlb2/pf/dlb2_pf.c
@@ -789,6 +789,8 @@ dlb2_eventdev_pci_init(struct rte_eventdev *eventdev)
 	if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 		dlb2 = dlb2_pmd_priv(eventdev); /* rte_zmalloc_socket mem */
 		dlb2->version = DLB2_HW_DEVICE_FROM_PCI_ID(pci_dev);
+		if (dlb2->version == DLB2_HW_V2_5)
+			dlb2_args.max_num_events = DLB2_MAX_NUM_CREDITS(DLB2_HW_V2_5);
 
 		/* Were we invoked with runtime parameters? */
 		if (pci_dev->device.devargs) {
-- 
2.39.1

Re: [PATCH v4 7/7] event/dlb2: fix default credits based on HW version

[Jerin Jacob]

On Thu, Jun 19, 2025 at 9:34 AM Pravin Pathak <pravin.pathak@intel.com> wrote:
>
> From: Tirthendu Sarkar <tirthendu.sarkar@intel.com>
>
> dlb2_eventdev_info_get() that implements rte_event_dev_info_get() should
> return the maximum available credits as supported by HW.
>
> Set maximum credits before device probing by checking HW version.
>
> Fixes: b66a418d2ad3 ("event/dlb2: add v2.5 probe")
> Cc: stable@dpdk.org
>
> Signed-off-by: Tirthendu Sarkar <tirthendu.sarkar@intel.com>

Series applied to dpdk-next-net-eventdev/for-main. Thanks