X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fbnxt%2Ftf_core%2Ftf_tcam.c;h=7679d09eea021333933cd3da6b950dc3be50461f;hb=7ecfe8521fbb6a845f08a6b178676d1d6c5a7802;hp=1c48b5363ff95e89eb5fae9c0959425ba3d975af;hpb=d0d22f1f062d6d08839601397e74d2aeb6b5a72c;p=dpdk.git

diff --git a/drivers/net/bnxt/tf_core/tf_tcam.c b/drivers/net/bnxt/tf_core/tf_tcam.c
index 1c48b5363f..7679d09eea 100644
--- a/drivers/net/bnxt/tf_core/tf_tcam.c
+++ b/drivers/net/bnxt/tf_core/tf_tcam.c
@@ -14,6 +14,7 @@
 #include "tfp.h"
 #include "tf_session.h"
 #include "tf_msg.h"
+#include "tf_shadow_tcam.h"
 
 struct tf;
 
@@ -25,7 +26,7 @@ static void *tcam_db[TF_DIR_MAX];
 /**
  * TCAM Shadow DBs
  */
-/* static void *shadow_tcam_db[TF_DIR_MAX]; */
+static void *shadow_tcam_db[TF_DIR_MAX];
 
 /**
  * Init flag, set on bind and cleared on unbind
@@ -35,16 +36,22 @@ static uint8_t init;
 /**
  * Shadow init flag, set on bind and cleared on unbind
  */
-/* static uint8_t shadow_init; */
+static uint8_t shadow_init;
 
 int
 tf_tcam_bind(struct tf *tfp,
 	     struct tf_tcam_cfg_parms *parms)
 {
 	int rc;
-	int i;
+	int i, d;
+	struct tf_rm_alloc_info info;
+	struct tf_rm_free_db_parms fparms;
+	struct tf_rm_create_db_parms db_cfg;
 	struct tf_tcam_resources *tcam_cnt;
-	struct tf_rm_create_db_parms db_cfg = { 0 };
+	struct tf_shadow_tcam_free_db_parms fshadow;
+	struct tf_rm_get_alloc_info_parms ainfo;
+	struct tf_shadow_tcam_cfg_parms shadow_cfg;
+	struct tf_shadow_tcam_create_db_parms shadow_cdb;
 
 	TF_CHECK_PARMS2(tfp, parms);
 
@@ -62,29 +69,91 @@ tf_tcam_bind(struct tf *tfp,
 		return -EINVAL;
 	}
 
+	memset(&db_cfg, 0, sizeof(db_cfg));
+
 	db_cfg.type = TF_DEVICE_MODULE_TYPE_TCAM;
 	db_cfg.num_elements = parms->num_elements;
 	db_cfg.cfg = parms->cfg;
 
-	for (i = 0; i < TF_DIR_MAX; i++) {
-		db_cfg.dir = i;
-		db_cfg.alloc_cnt = parms->resources->tcam_cnt[i].cnt;
-		db_cfg.rm_db = &tcam_db[i];
+	for (d = 0; d < TF_DIR_MAX; d++) {
+		db_cfg.dir = d;
+		db_cfg.alloc_cnt = parms->resources->tcam_cnt[d].cnt;
+		db_cfg.rm_db = &tcam_db[d];
 		rc = tf_rm_create_db(tfp, &db_cfg);
 		if (rc) {
 			TFP_DRV_LOG(ERR,
 				    "%s: TCAM DB creation failed\n",
-				    tf_dir_2_str(i));
+				    tf_dir_2_str(d));
 			return rc;
 		}
 	}
 
+	/* Initialize the TCAM manager. */
+	if (parms->shadow_copy) {
+		for (d = 0; d < TF_DIR_MAX; d++) {
+			memset(&shadow_cfg, 0, sizeof(shadow_cfg));
+			memset(&shadow_cdb, 0, sizeof(shadow_cdb));
+			/* Get the base addresses of the tcams for tcam mgr */
+			for (i = 0; i < TF_TCAM_TBL_TYPE_MAX; i++) {
+				memset(&info, 0, sizeof(info));
+
+				if (!parms->resources->tcam_cnt[d].cnt[i])
+					continue;
+				ainfo.rm_db = tcam_db[d];
+				ainfo.db_index = i;
+				ainfo.info = &info;
+				rc = tf_rm_get_info(&ainfo);
+				if (rc)
+					goto error;
+
+				shadow_cfg.base_addr[i] = info.entry.start;
+			}
+
+			/* Create the shadow db */
+			shadow_cfg.alloc_cnt =
+				parms->resources->tcam_cnt[d].cnt;
+			shadow_cfg.num_entries = parms->num_elements;
+
+			shadow_cdb.shadow_db = &shadow_tcam_db[d];
+			shadow_cdb.cfg = &shadow_cfg;
+			rc = tf_shadow_tcam_create_db(&shadow_cdb);
+			if (rc) {
+				TFP_DRV_LOG(ERR,
+					    "TCAM MGR DB creation failed "
+					    "rc=%d\n", rc);
+				goto error;
+			}
+		}
+		shadow_init = 1;
+	}
+
 	init = 1;
 
 	TFP_DRV_LOG(INFO,
 		    "TCAM - initialized\n");
 
 	return 0;
+error:
+	for (i = 0; i < TF_DIR_MAX; i++) {
+		memset(&fparms, 0, sizeof(fparms));
+		fparms.dir = i;
+		fparms.rm_db = tcam_db[i];
+		/* Ignoring return here since we are in the error case */
+		(void)tf_rm_free_db(tfp, &fparms);
+
+		if (parms->shadow_copy) {
+			fshadow.shadow_db = shadow_tcam_db[i];
+			tf_shadow_tcam_free_db(&fshadow);
+			shadow_tcam_db[i] = NULL;
+		}
+
+		tcam_db[i] = NULL;
+	}
+
+	shadow_init = 0;
+	init = 0;
+
+	return rc;
 }
 
 int
@@ -92,7 +161,8 @@ tf_tcam_unbind(struct tf *tfp)
 {
 	int rc;
 	int i;
-	struct tf_rm_free_db_parms fparms = { 0 };
+	struct tf_rm_free_db_parms fparms;
+	struct tf_shadow_tcam_free_db_parms fshadow;
 
 	TF_CHECK_PARMS1(tfp);
 
@@ -104,6 +174,7 @@ tf_tcam_unbind(struct tf *tfp)
 	}
 
 	for (i = 0; i < TF_DIR_MAX; i++) {
+		memset(&fparms, 0, sizeof(fparms));
 		fparms.dir = i;
 		fparms.rm_db = tcam_db[i];
 		rc = tf_rm_free_db(tfp, &fparms);
@@ -111,8 +182,17 @@ tf_tcam_unbind(struct tf *tfp)
 			return rc;
 
 		tcam_db[i] = NULL;
+
+		if (shadow_init) {
+			memset(&fshadow, 0, sizeof(fshadow));
+
+			fshadow.shadow_db = shadow_tcam_db[i];
+			tf_shadow_tcam_free_db(&fshadow);
+			shadow_tcam_db[i] = NULL;
+		}
 	}
 
+	shadow_init = 0;
 	init = 0;
 
 	return 0;
@@ -125,7 +205,7 @@ tf_tcam_alloc(struct tf *tfp,
 	int rc;
 	struct tf_session *tfs;
 	struct tf_dev_info *dev;
-	struct tf_rm_allocate_parms aparms = { 0 };
+	struct tf_rm_allocate_parms aparms;
 	uint16_t num_slice_per_row = 1;
 
 	TF_CHECK_PARMS2(tfp, parms);
@@ -138,7 +218,7 @@ tf_tcam_alloc(struct tf *tfp,
 	}
 
 	/* Retrieve the session information */
-	rc = tf_session_get_session(tfp, &tfs);
+	rc = tf_session_get_session_internal(tfp, &tfs);
 	if (rc)
 		return rc;
 
@@ -165,6 +245,8 @@ tf_tcam_alloc(struct tf *tfp,
 		return rc;
 
 	/* Allocate requested element */
+	memset(&aparms, 0, sizeof(aparms));
+
 	aparms.rm_db = tcam_db[parms->dir];
 	aparms.db_index = parms->type;
 	aparms.priority = parms->priority;
@@ -202,11 +284,12 @@ tf_tcam_free(struct tf *tfp,
 	int rc;
 	struct tf_session *tfs;
 	struct tf_dev_info *dev;
-	struct tf_rm_is_allocated_parms aparms = { 0 };
-	struct tf_rm_free_parms fparms = { 0 };
-	struct tf_rm_get_hcapi_parms hparms = { 0 };
+	struct tf_rm_is_allocated_parms aparms;
+	struct tf_rm_free_parms fparms;
+	struct tf_rm_get_hcapi_parms hparms;
 	uint16_t num_slice_per_row = 1;
 	int allocated = 0;
+	struct tf_shadow_tcam_remove_parms shparms;
 
 	TF_CHECK_PARMS2(tfp, parms);
 
@@ -218,7 +301,7 @@ tf_tcam_free(struct tf *tfp,
 	}
 
 	/* Retrieve the session information */
-	rc = tf_session_get_session(tfp, &tfs);
+	rc = tf_session_get_session_internal(tfp, &tfs);
 	if (rc)
 		return rc;
 
@@ -245,6 +328,8 @@ tf_tcam_free(struct tf *tfp,
 		return rc;
 
 	/* Check if element is in use */
+	memset(&aparms, 0, sizeof(aparms));
+
 	aparms.rm_db = tcam_db[parms->dir];
 	aparms.db_index = parms->type;
 	aparms.index = parms->idx / num_slice_per_row;
@@ -262,7 +347,37 @@ tf_tcam_free(struct tf *tfp,
 		return -EINVAL;
 	}
 
+	/*
+	 * The Shadow mgmt, if enabled, determines if the entry needs
+	 * to be deleted.
+	 */
+	if (shadow_init) {
+		shparms.shadow_db = shadow_tcam_db[parms->dir];
+		shparms.fparms = parms;
+		rc = tf_shadow_tcam_remove(&shparms);
+		if (rc) {
+			/*
+			 * Should not get here, log it and let the entry be
+			 * deleted.
+			 */
+			TFP_DRV_LOG(ERR, "%s: Shadow free fail, "
+				    "type:%d index:%d deleting the entry.\n",
+				    tf_dir_2_str(parms->dir),
+				    parms->type,
+				    parms->idx);
+		} else {
+			/*
+			 * If the entry still has references, just return the
+			 * ref count to the caller.  No need to remove entry
+			 * from rm or hw
+			 */
+			if (parms->ref_cnt >= 1)
+				return rc;
+		}
+	}
+
 	/* Free requested element */
+	memset(&fparms, 0, sizeof(fparms));
 	fparms.rm_db = tcam_db[parms->dir];
 	fparms.db_index = parms->type;
 	fparms.index = parms->idx / num_slice_per_row;
@@ -291,7 +406,8 @@ tf_tcam_free(struct tf *tfp,
 				rc = tf_rm_free(&fparms);
 				if (rc) {
 					TFP_DRV_LOG(ERR,
-						    "%s: Free failed, type:%d, index:%d\n",
+						    "%s: Free failed, type:%d, "
+						    "index:%d\n",
 						    tf_dir_2_str(parms->dir),
 						    parms->type,
 						    fparms.index);
@@ -302,6 +418,8 @@ tf_tcam_free(struct tf *tfp,
 	}
 
 	/* Convert TF type to HCAPI RM type */
+	memset(&hparms, 0, sizeof(hparms));
+
 	hparms.rm_db = tcam_db[parms->dir];
 	hparms.db_index = parms->type;
 	hparms.hcapi_type = &parms->hcapi_type;
@@ -319,15 +437,138 @@ tf_tcam_free(struct tf *tfp,
 			    tf_tcam_tbl_2_str(parms->type),
 			    parms->idx,
 			    strerror(-rc));
+		return rc;
 	}
 
 	return 0;
 }
 
 int
-tf_tcam_alloc_search(struct tf *tfp __rte_unused,
-		     struct tf_tcam_alloc_search_parms *parms __rte_unused)
+tf_tcam_alloc_search(struct tf *tfp,
+		     struct tf_tcam_alloc_search_parms *parms)
 {
+	struct tf_shadow_tcam_search_parms sparms;
+	struct tf_shadow_tcam_bind_index_parms bparms;
+	struct tf_tcam_alloc_parms aparms;
+	struct tf_tcam_free_parms fparms;
+	uint16_t num_slice_per_row = 1;
+	struct tf_session *tfs;
+	struct tf_dev_info *dev;
+	int rc;
+
+	TF_CHECK_PARMS2(tfp, parms);
+
+	if (!init) {
+		TFP_DRV_LOG(ERR,
+			    "%s: No TCAM DBs created\n",
+			    tf_dir_2_str(parms->dir));
+		return -EINVAL;
+	}
+
+	if (!shadow_init || !shadow_tcam_db[parms->dir]) {
+		TFP_DRV_LOG(ERR, "%s: TCAM Shadow not initialized for %s\n",
+			    tf_dir_2_str(parms->dir),
+			    tf_tcam_tbl_2_str(parms->type));
+		return -EINVAL;
+	}
+
+	/* Retrieve the session information */
+	rc = tf_session_get_session_internal(tfp, &tfs);
+	if (rc)
+		return rc;
+
+	/* Retrieve the device information */
+	rc = tf_session_get_device(tfs, &dev);
+	if (rc)
+		return rc;
+
+	if (dev->ops->tf_dev_get_tcam_slice_info == NULL) {
+		rc = -EOPNOTSUPP;
+		TFP_DRV_LOG(ERR,
+			    "%s: Operation not supported, rc:%s\n",
+			    tf_dir_2_str(parms->dir),
+			    strerror(-rc));
+		return rc;
+	}
+
+	/* Need to retrieve row size etc */
+	rc = dev->ops->tf_dev_get_tcam_slice_info(tfp,
+						  parms->type,
+						  parms->key_size,
+						  &num_slice_per_row);
+	if (rc)
+		return rc;
+
+	/*
+	 * Prep the shadow search, reusing the parms from original search
+	 * instead of copying them.  Shadow will update output in there.
+	 */
+	memset(&sparms, 0, sizeof(sparms));
+	sparms.sparms = parms;
+	sparms.shadow_db = shadow_tcam_db[parms->dir];
+
+	rc = tf_shadow_tcam_search(&sparms);
+	if (rc)
+		return rc;
+
+	/*
+	 * The app didn't request us to alloc the entry, so return now.
+	 * The hit should have been updated in the original search parm.
+	 */
+	if (!parms->alloc || parms->search_status != MISS)
+		return rc;
+
+	/* Caller desires an allocate on miss */
+	if (dev->ops->tf_dev_alloc_tcam == NULL) {
+		rc = -EOPNOTSUPP;
+		TFP_DRV_LOG(ERR,
+			    "%s: Operation not supported, rc:%s\n",
+			    tf_dir_2_str(parms->dir),
+			    strerror(-rc));
+		return rc;
+	}
+	memset(&aparms, 0, sizeof(aparms));
+	aparms.dir = parms->dir;
+	aparms.type = parms->type;
+	aparms.key_size = parms->key_size;
+	aparms.priority = parms->priority;
+	rc = dev->ops->tf_dev_alloc_tcam(tfp, &aparms);
+	if (rc)
+		return rc;
+
+	/* Successful allocation, attempt to add it to the shadow */
+	memset(&bparms, 0, sizeof(bparms));
+	bparms.dir = parms->dir;
+	bparms.shadow_db = shadow_tcam_db[parms->dir];
+	bparms.type = parms->type;
+	bparms.key = parms->key;
+	bparms.mask = parms->mask;
+	bparms.key_size = parms->key_size;
+	bparms.idx = aparms.idx;
+	bparms.hb_handle = sparms.hb_handle;
+	rc = tf_shadow_tcam_bind_index(&bparms);
+	if (rc) {
+		/* Error binding entry, need to free the allocated idx */
+		if (dev->ops->tf_dev_free_tcam == NULL) {
+			rc = -EOPNOTSUPP;
+			TFP_DRV_LOG(ERR,
+				    "%s: Operation not supported, rc:%s\n",
+				    tf_dir_2_str(parms->dir),
+				    strerror(-rc));
+			return rc;
+		}
+
+		fparms.dir = parms->dir;
+		fparms.type = parms->type;
+		fparms.idx = aparms.idx;
+		rc = dev->ops->tf_dev_free_tcam(tfp, &fparms);
+		if (rc)
+			return rc;
+	}
+
+	/* Add the allocated index to output and done */
+	parms->idx = aparms.idx;
+
 	return 0;
 }
 
@@ -338,8 +579,9 @@ tf_tcam_set(struct tf *tfp __rte_unused,
 	int rc;
 	struct tf_session *tfs;
 	struct tf_dev_info *dev;
-	struct tf_rm_is_allocated_parms aparms = { 0 };
-	struct tf_rm_get_hcapi_parms hparms = { 0 };
+	struct tf_rm_is_allocated_parms aparms;
+	struct tf_rm_get_hcapi_parms hparms;
+	struct tf_shadow_tcam_insert_parms iparms;
 	uint16_t num_slice_per_row = 1;
 	int allocated = 0;
 
@@ -353,7 +595,7 @@ tf_tcam_set(struct tf *tfp __rte_unused,
 	}
 
 	/* Retrieve the session information */
-	rc = tf_session_get_session(tfp, &tfs);
+	rc = tf_session_get_session_internal(tfp, &tfs);
 	if (rc)
 		return rc;
 
@@ -380,6 +622,8 @@ tf_tcam_set(struct tf *tfp __rte_unused,
 		return rc;
 
 	/* Check if element is in use */
+	memset(&aparms, 0, sizeof(aparms));
+
 	aparms.rm_db = tcam_db[parms->dir];
 	aparms.db_index = parms->type;
 	aparms.index = parms->idx / num_slice_per_row;
@@ -398,6 +642,8 @@ tf_tcam_set(struct tf *tfp __rte_unused,
 	}
 
 	/* Convert TF type to HCAPI RM type */
+	memset(&hparms, 0, sizeof(hparms));
+
 	hparms.rm_db = tcam_db[parms->dir];
 	hparms.db_index = parms->type;
 	hparms.hcapi_type = &parms->hcapi_type;
@@ -415,6 +661,24 @@ tf_tcam_set(struct tf *tfp __rte_unused,
 			    tf_tcam_tbl_2_str(parms->type),
 			    parms->idx,
 			    strerror(-rc));
+		return rc;
+	}
+
+	/* Successfully added to hw, now for shadow if enabled. */
+	if (!shadow_init || !shadow_tcam_db[parms->dir])
+		return 0;
+
+	iparms.shadow_db = shadow_tcam_db[parms->dir];
+	iparms.sparms = parms;
+	rc = tf_shadow_tcam_insert(&iparms);
+	if (rc) {
+		TFP_DRV_LOG(ERR,
+			    "%s: %s: Entry %d set failed, rc:%s",
+			    tf_dir_2_str(parms->dir),
+			    tf_tcam_tbl_2_str(parms->type),
+			    parms->idx,
+			    strerror(-rc));
+		return rc;
 	}
 
 	return 0;