[31/33] net/cnxk: add PMD API to retrieve CPT queue statistics

Message ID 20240910085909.1514457-32-ndabilpuram@marvell.com (mailing list archive)
State Changes Requested
Delegated to: Jerin Jacob
Headers
Series add Marvell cn20k SOC support for mempool and net |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Nithin Dabilpuram Sept. 10, 2024, 8:59 a.m. UTC
From: Srujana Challa <schalla@marvell.com>

Introduces a new PMD API to obtain CPT queue statistics, including:
- CPT_LF_CTX_ENC_BYTE_CNT - Encrypted byte count on the given queue
- CPT_LF_CTX_ENC_PKT_CNT - Encrypted packet count on the given queue
- CPT_LF_CTX_DEC_BYTE_CNT - Decrypted byte count on the given queue
- CPT_LF_CTX_DEC_PKT_CNT - Decrypted packet count on the given queue

This API enables applications to access CPT queue statistics directly.

Signed-off-by: Srujana Challa <schalla@marvell.com>
---
 drivers/common/cnxk/roc_nix_inl.c  | 67 ++++++++++++++++++++++++++++++
 drivers/common/cnxk/roc_nix_inl.h  | 15 +++++++
 drivers/common/cnxk/version.map    |  1 +
 drivers/net/cnxk/cnxk_ethdev_sec.c | 11 +++++
 drivers/net/cnxk/rte_pmd_cnxk.h    | 43 +++++++++++++++++++
 drivers/net/cnxk/version.map       |  1 +
 6 files changed, 138 insertions(+)
  

Patch

diff --git a/drivers/common/cnxk/roc_nix_inl.c b/drivers/common/cnxk/roc_nix_inl.c
index 79116afe6d..4d6d0cab5f 100644
--- a/drivers/common/cnxk/roc_nix_inl.c
+++ b/drivers/common/cnxk/roc_nix_inl.c
@@ -1814,6 +1814,73 @@  roc_nix_inl_ctx_write(struct roc_nix *roc_nix, void *sa_dptr, void *sa_cptr,
 	return -ENOTSUP;
 }
 
+static inline int
+nix_inl_dev_cpt_lf_stats_get(struct roc_nix *roc_nix, struct roc_nix_cpt_lf_stats *stats,
+			     uint16_t idx)
+{
+	struct idev_cfg *idev = idev_get_cfg();
+	struct nix_inl_dev *inl_dev = NULL;
+	struct roc_cpt_lf *lf = NULL;
+
+	PLT_SET_USED(roc_nix);
+	if (idev)
+		inl_dev = idev->nix_inl_dev;
+
+	if (inl_dev && inl_dev->attach_cptlf) {
+		if (idx >= inl_dev->nb_cptlf) {
+			plt_err("Invalid idx: %u total lfs: %d\n", idx, inl_dev->nb_cptlf);
+			return -EINVAL;
+		}
+		lf = &inl_dev->cpt_lf[idx];
+	} else {
+		plt_err("No CPT LF(s) are found for Inline Device\n");
+		return -EINVAL;
+	}
+	stats->enc_pkts = plt_read64(lf->rbase + CPT_LF_CTX_ENC_PKT_CNT);
+	stats->enc_bytes = plt_read64(lf->rbase + CPT_LF_CTX_ENC_BYTE_CNT);
+	stats->dec_pkts = plt_read64(lf->rbase + CPT_LF_CTX_DEC_PKT_CNT);
+	stats->dec_bytes = plt_read64(lf->rbase + CPT_LF_CTX_DEC_BYTE_CNT);
+
+	return 0;
+}
+
+static inline int
+nix_eth_dev_cpt_lf_stats_get(struct roc_nix *roc_nix, struct roc_nix_cpt_lf_stats *stats,
+			     uint16_t idx)
+{
+	struct roc_cpt_lf *lf;
+	struct nix *nix;
+
+	if (!roc_nix)
+		return -EINVAL;
+	nix = roc_nix_to_nix_priv(roc_nix);
+	if (idx >= nix->nb_cpt_lf) {
+		plt_err("Invalid idx: %u total lfs: %d\n", idx, nix->nb_cpt_lf);
+		return -EINVAL;
+	}
+	lf = &nix->cpt_lf_base[idx];
+	stats->enc_pkts = plt_read64(lf->rbase + CPT_LF_CTX_ENC_PKT_CNT);
+	stats->enc_bytes = plt_read64(lf->rbase + CPT_LF_CTX_ENC_BYTE_CNT);
+	stats->dec_pkts = plt_read64(lf->rbase + CPT_LF_CTX_DEC_PKT_CNT);
+	stats->dec_bytes = plt_read64(lf->rbase + CPT_LF_CTX_DEC_BYTE_CNT);
+
+	return 0;
+}
+
+int
+roc_nix_inl_cpt_lf_stats_get(struct roc_nix *roc_nix, enum roc_nix_cpt_lf_stats_type type,
+			     struct roc_nix_cpt_lf_stats *stats, uint16_t idx)
+{
+	switch (type) {
+	case ROC_NIX_CPT_LF_STATS_INL_DEV:
+		return nix_inl_dev_cpt_lf_stats_get(roc_nix, stats, idx);
+	case ROC_NIX_CPT_LF_STATS_ETHDEV:
+		return nix_eth_dev_cpt_lf_stats_get(roc_nix, stats, idx);
+	default:
+		return -EINVAL;
+	}
+}
+
 int
 roc_nix_inl_ts_pkind_set(struct roc_nix *roc_nix, bool ts_ena, bool inb_inl_dev)
 {
diff --git a/drivers/common/cnxk/roc_nix_inl.h b/drivers/common/cnxk/roc_nix_inl.h
index 974834a0f3..16cead7fa4 100644
--- a/drivers/common/cnxk/roc_nix_inl.h
+++ b/drivers/common/cnxk/roc_nix_inl.h
@@ -112,6 +112,13 @@  struct roc_nix_inl_dev_q {
 	int32_t fc_addr_sw;
 } __plt_cache_aligned;
 
+struct roc_nix_cpt_lf_stats {
+	uint64_t enc_pkts;
+	uint64_t enc_bytes;
+	uint64_t dec_pkts;
+	uint64_t dec_bytes;
+};
+
 /* NIX Inline Device API */
 int __roc_api roc_nix_inl_dev_init(struct roc_nix_inl_dev *roc_inl_dev);
 int __roc_api roc_nix_inl_dev_fini(struct roc_nix_inl_dev *roc_inl_dev);
@@ -187,4 +194,12 @@  void __roc_api roc_nix_inl_outb_cpt_lfs_dump(struct roc_nix *roc_nix, FILE *file
 uint64_t __roc_api roc_nix_inl_eng_caps_get(struct roc_nix *roc_nix);
 void *__roc_api roc_nix_inl_dev_qptr_get(uint8_t qid);
 
+enum roc_nix_cpt_lf_stats_type {
+	ROC_NIX_CPT_LF_STATS_INL_DEV,
+	ROC_NIX_CPT_LF_STATS_KERNEL,
+	ROC_NIX_CPT_LF_STATS_ETHDEV = 2,
+};
+int __roc_api roc_nix_inl_cpt_lf_stats_get(struct roc_nix *roc_nix,
+					   enum roc_nix_cpt_lf_stats_type type,
+					   struct roc_nix_cpt_lf_stats *stats, uint16_t idx);
 #endif /* _ROC_NIX_INL_H_ */
diff --git a/drivers/common/cnxk/version.map b/drivers/common/cnxk/version.map
index 8832c75eef..6f8a2e02da 100644
--- a/drivers/common/cnxk/version.map
+++ b/drivers/common/cnxk/version.map
@@ -267,6 +267,7 @@  INTERNAL {
 	roc_nix_inl_meta_pool_cb_register;
 	roc_nix_inl_custom_meta_pool_cb_register;
 	roc_nix_inb_mode_set;
+	roc_nix_inl_cpt_lf_stats_get;
 	roc_nix_inl_dev_qptr_get;
 	roc_nix_inl_outb_fini;
 	roc_nix_inl_outb_init;
diff --git a/drivers/net/cnxk/cnxk_ethdev_sec.c b/drivers/net/cnxk/cnxk_ethdev_sec.c
index 7e5103bf54..32b6946ac1 100644
--- a/drivers/net/cnxk/cnxk_ethdev_sec.c
+++ b/drivers/net/cnxk/cnxk_ethdev_sec.c
@@ -311,6 +311,17 @@  rte_pmd_cnxk_inl_dev_qptr_get(void)
 	return roc_nix_inl_dev_qptr_get(0);
 }
 
+int
+rte_pmd_cnxk_cpt_q_stats_get(uint16_t portid, enum rte_pmd_cnxk_cpt_q_stats_type type,
+			     struct rte_pmd_cnxk_cpt_q_stats *stats, uint16_t idx)
+{
+	struct rte_eth_dev *eth_dev = &rte_eth_devices[portid];
+	struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
+
+	return roc_nix_inl_cpt_lf_stats_get(&dev->nix, (enum roc_nix_cpt_lf_stats_type)type,
+					    (struct roc_nix_cpt_lf_stats *)stats, idx);
+}
+
 union rte_pmd_cnxk_ipsec_hw_sa *
 rte_pmd_cnxk_hw_session_base_get(uint16_t portid, bool inb)
 {
diff --git a/drivers/net/cnxk/rte_pmd_cnxk.h b/drivers/net/cnxk/rte_pmd_cnxk.h
index 798547e731..dcb4f334fe 100644
--- a/drivers/net/cnxk/rte_pmd_cnxk.h
+++ b/drivers/net/cnxk/rte_pmd_cnxk.h
@@ -47,6 +47,30 @@  enum rte_pmd_cnxk_sec_action_alg {
 	RTE_PMD_CNXK_SEC_ACTION_ALG4,
 };
 
+/** CPT queue type for obtaining queue hardware statistics. */
+enum rte_pmd_cnxk_cpt_q_stats_type {
+	/** Type to get Inline Device LF(s) statistics */
+	RTE_PMD_CNXK_CPT_Q_STATS_INL_DEV,
+	/** Type to get Inline Inbound LF which is attached to kernel device
+	 * statistics.
+	 */
+	RTE_PMD_CNXK_CPT_Q_STATS_KERNEL,
+	/** Type to get CPT LF which is attached to ethdev statistics */
+	RTE_PMD_CNXK_CPT_Q_STATS_ETHDEV = 2,
+};
+
+/** CPT queue hardware statistics */
+struct rte_pmd_cnxk_cpt_q_stats {
+	/** Encrypted packet count */
+	uint64_t enc_pkts;
+	/** Encrypted byte count */
+	uint64_t enc_bytes;
+	/** Decrypted packet count */
+	uint64_t dec_pkts;
+	/** Decrypted byte count */
+	uint64_t dec_bytes;
+};
+
 struct rte_pmd_cnxk_sec_action {
 	/** Used as lookup result for ALG3 */
 	uint32_t sa_index;
@@ -613,4 +637,23 @@  __rte_experimental
 uint16_t rte_pmd_cnxk_inl_dev_submit(struct rte_pmd_cnxk_inl_dev_q *qptr, void *inst,
 				     uint16_t nb_inst);
 
+/**
+ * Retrieves the hardware statistics of a given port and stats type.
+ *
+ * @param portid
+ *   Port identifier of Ethernet device.
+ * @param type
+ *   The type of hardware statistics to retrieve, as defined in the
+ *   ``enum rte_pmd_cnxk_cpt_q_stats_type``.
+ * @param stats
+ *   Pointer where the retrieved statistics will be stored.
+ * @param idx
+ *   The index of the queue of a given type.
+ *
+ * @return
+ *   0 upon success, a negative errno value otherwise.
+ */
+__rte_experimental
+int rte_pmd_cnxk_cpt_q_stats_get(uint16_t portid, enum rte_pmd_cnxk_cpt_q_stats_type type,
+				 struct rte_pmd_cnxk_cpt_q_stats *stats, uint16_t idx);
 #endif /* _PMD_CNXK_H_ */
diff --git a/drivers/net/cnxk/version.map b/drivers/net/cnxk/version.map
index 58dcb1fac0..02a02edc25 100644
--- a/drivers/net/cnxk/version.map
+++ b/drivers/net/cnxk/version.map
@@ -10,6 +10,7 @@  EXPERIMENTAL {
 	rte_pmd_cnxk_hw_sa_write;
 
 	# added in 23.11
+	rte_pmd_cnxk_cpt_q_stats_get;
 	rte_pmd_cnxk_hw_session_base_get;
 	rte_pmd_cnxk_inl_dev_qptr_get;
 	rte_pmd_cnxk_inl_dev_submit;