From: Farah Smith <farah.sm...@broadcom.com>
- Add TruFlow Identifier resource support
- Add TruFlow public API for Identifier resources.
- Add support code and stack for Identifier resource allocation control.
Signed-off-by: Farah Smith <farah.sm...@broadcom.com>
Reviewed-by: Randy Schacher <stuart.schac...@broadcom.com>
Reviewed-by: Ajit Kumar Khaparde <ajit.khapa...@broadcom.com>
---
drivers/net/bnxt/tf_core/tf_core.c | 156 +++++++++++++++++++++++++++++++++++++
drivers/net/bnxt/tf_core/tf_core.h | 55 +++++++++++++
drivers/net/bnxt/tf_core/tf_msg.c | 13 ++++
3 files changed, 224 insertions(+)
diff --git a/drivers/net/bnxt/tf_core/tf_core.c
b/drivers/net/bnxt/tf_core/tf_core.c
index 259ffa2..037f7d1 100644
--- a/drivers/net/bnxt/tf_core/tf_core.c
+++ b/drivers/net/bnxt/tf_core/tf_core.c
@@ -283,3 +283,159 @@ tf_close_session(struct tf *tfp)
return rc_close;
}
+
+/** allocate identifier resource
+ *
+ * Returns success or failure code.
+ */
+int tf_alloc_identifier(struct tf *tfp,
+ struct tf_alloc_identifier_parms *parms)
+{
+ struct bitalloc *session_pool;
+ struct tf_session *tfs;
+ int id;
+ int rc;
+
+ if (parms == NULL || tfp == NULL)
+ return -EINVAL;
+
+ if (tfp->session == NULL || tfp->session->core_data == NULL) {
+ PMD_DRV_LOG(ERR, "%s: session error\n",
+ tf_dir_2_str(parms->dir));
+ return -EINVAL;
+ }
+
+ tfs = (struct tf_session *)(tfp->session->core_data);
+
+ switch (parms->ident_type) {
+ case TF_IDENT_TYPE_L2_CTXT:
+ TF_RM_GET_POOLS(tfs, parms->dir, &session_pool,
+ TF_L2_CTXT_REMAP_POOL_NAME,
+ rc);
+ break;
+ case TF_IDENT_TYPE_PROF_FUNC:
+ TF_RM_GET_POOLS(tfs, parms->dir, &session_pool,
+ TF_PROF_FUNC_POOL_NAME,
+ rc);
+ break;
+ case TF_IDENT_TYPE_EM_PROF:
+ TF_RM_GET_POOLS(tfs, parms->dir, &session_pool,
+ TF_EM_PROF_ID_POOL_NAME,
+ rc);
+ break;
+ case TF_IDENT_TYPE_WC_PROF:
+ TF_RM_GET_POOLS(tfs, parms->dir, &session_pool,
+ TF_WC_TCAM_PROF_ID_POOL_NAME,
+ rc);
+ break;
+ case TF_IDENT_TYPE_L2_FUNC:
+ PMD_DRV_LOG(ERR, "%s: unsupported %s\n",
+ tf_dir_2_str(parms->dir),
+ tf_ident_2_str(parms->ident_type));
+ rc = -EOPNOTSUPP;
+ break;
+ default:
+ PMD_DRV_LOG(ERR, "%s: %s\n",
+ tf_dir_2_str(parms->dir),
+ tf_ident_2_str(parms->ident_type));
+ rc = -EINVAL;
+ break;
+ }
+
+ if (rc) {
+ PMD_DRV_LOG(ERR, "%s: identifier pool %s failure\n",
+ tf_dir_2_str(parms->dir),
+ tf_ident_2_str(parms->ident_type));
+ return rc;
+ }
+
+ id = ba_alloc(session_pool);
+
+ if (id == BA_FAIL) {
+ PMD_DRV_LOG(ERR, "%s: %s: No resource available\n",
+ tf_dir_2_str(parms->dir),
+ tf_ident_2_str(parms->ident_type));
+ return -ENOMEM;
+ }
+ parms->id = id;
+ return 0;
+}
+
+/** free identifier resource
+ *
+ * Returns success or failure code.
+ */
+int tf_free_identifier(struct tf *tfp,
+ struct tf_free_identifier_parms *parms)
+{
+ struct bitalloc *session_pool;
+ int rc;
+ int ba_rc;
+ struct tf_session *tfs;
+
+ if (parms == NULL || tfp == NULL)
+ return -EINVAL;
+
+ if (tfp->session == NULL || tfp->session->core_data == NULL) {
+ PMD_DRV_LOG(ERR, "%s: Session error\n",
+ tf_dir_2_str(parms->dir));
+ return -EINVAL;
+ }
+
+ tfs = (struct tf_session *)(tfp->session->core_data);
+
+ switch (parms->ident_type) {
+ case TF_IDENT_TYPE_L2_CTXT:
+ TF_RM_GET_POOLS(tfs, parms->dir, &session_pool,
+ TF_L2_CTXT_REMAP_POOL_NAME,
+ rc);
+ break;
+ case TF_IDENT_TYPE_PROF_FUNC:
+ TF_RM_GET_POOLS(tfs, parms->dir, &session_pool,
+ TF_PROF_FUNC_POOL_NAME,
+ rc);
+ break;
+ case TF_IDENT_TYPE_EM_PROF:
+ TF_RM_GET_POOLS(tfs, parms->dir, &session_pool,
+ TF_EM_PROF_ID_POOL_NAME,
+ rc);
+ break;
+ case TF_IDENT_TYPE_WC_PROF:
+ TF_RM_GET_POOLS(tfs, parms->dir, &session_pool,
+ TF_WC_TCAM_PROF_ID_POOL_NAME,
+ rc);
+ break;
+ case TF_IDENT_TYPE_L2_FUNC:
+ PMD_DRV_LOG(ERR, "%s: unsupported %s\n",
+ tf_dir_2_str(parms->dir),
+ tf_ident_2_str(parms->ident_type));
+ rc = -EOPNOTSUPP;
+ break;
+ default:
+ PMD_DRV_LOG(ERR, "%s: invalid %s\n",
+ tf_dir_2_str(parms->dir),
+ tf_ident_2_str(parms->ident_type));
+ rc = -EINVAL;
+ break;
+ }
+ if (rc) {
+ PMD_DRV_LOG(ERR, "%s: %s Identifier pool access failed\n",
+ tf_dir_2_str(parms->dir),
+ tf_ident_2_str(parms->ident_type));
+ return rc;
+ }
+
+ ba_rc = ba_inuse(session_pool, (int)parms->id);
+
+ if (ba_rc == BA_FAIL || ba_rc == BA_ENTRY_FREE) {
+ PMD_DRV_LOG(ERR, "%s: %s: Entry %d already free",
+ tf_dir_2_str(parms->dir),
+ tf_ident_2_str(parms->ident_type),
+ parms->id);
+ return -EINVAL;
+ }
+
+ ba_free(session_pool, (int)parms->id);
+
+ return 0;
+}
diff --git a/drivers/net/bnxt/tf_core/tf_core.h
b/drivers/net/bnxt/tf_core/tf_core.h
index 16c8251..afad9ea 100644
--- a/drivers/net/bnxt/tf_core/tf_core.h
+++ b/drivers/net/bnxt/tf_core/tf_core.h
@@ -402,6 +402,61 @@ enum tf_identifier_type {
TF_IDENT_TYPE_L2_FUNC
};
+/** tf_alloc_identifier parameter definition
+ */
+struct tf_alloc_identifier_parms {
+ /**
+ * [in] receive or transmit direction
+ */
+ enum tf_dir dir;
+ /**
+ * [in] Identifier type
+ */
+ enum tf_identifier_type ident_type;
+ /**
+ * [out] Identifier allocated
+ */
+ uint16_t id;
+};
+
+/** tf_free_identifier parameter definition
+ */
+struct tf_free_identifier_parms {
+ /**
+ * [in] receive or transmit direction
+ */
+ enum tf_dir dir;
+ /**
+ * [in] Identifier type
+ */
+ enum tf_identifier_type ident_type;
+ /**
+ * [in] ID to free
+ */
+ uint16_t id;
+};
+
+/** allocate identifier resource
+ *
+ * TruFlow core will allocate a free id from the per identifier resource type
+ * pool reserved for the session during tf_open(). No firmware is involved.
+ *
+ * Returns success or failure code.
+ */
+int tf_alloc_identifier(struct tf *tfp,
+ struct tf_alloc_identifier_parms *parms);
+
+/** free identifier resource
+ *
+ * TruFlow core will return an id back to the per identifier resource type pool
+ * reserved for the session. No firmware is involved. During tf_close, the
+ * complete pool is returned to the firmware.
+ *
+ * Returns success or failure code.
+ */
+int tf_free_identifier(struct tf *tfp,
+ struct tf_free_identifier_parms *parms);
+
/**
* TCAM table type
*/
diff --git a/drivers/net/bnxt/tf_core/tf_msg.c
b/drivers/net/bnxt/tf_core/tf_msg.c
index 4ce2bc5..c44f96f 100644
--- a/drivers/net/bnxt/tf_core/tf_msg.c
+++ b/drivers/net/bnxt/tf_core/tf_msg.c
@@ -94,6 +94,19 @@
} while (0)
/**
+ * This is the MAX data we can transport across regular HWRM
+ */
+#define TF_PCI_BUF_SIZE_MAX 88
+
+/**
+ * If data bigger than TF_PCI_BUF_SIZE_MAX then use DMA method
+ */
+struct tf_msg_dma_buf {
+ void *va_addr;
+ uint64_t pa_addr;
+};
+
+/**
* Sends session open request to TF Firmware
*/
int
--
2.7.4
