From a222e22be7cd04025dd7f8da8fba1c8c06c0c650 Mon Sep 17 00:00:00 2001 From: Farah Smith Date: Wed, 15 Jul 2020 19:20:32 +0530 Subject: [PATCH] net/bnxt: support two table scopes Need to remap the table scope ids allocated from HCAPI RM from high to low value because for legacy devices a table scope is a set of base addresses. The PCIe addresses must map to a PCIe PF which exists in the hardware. Signed-off-by: Farah Smith Signed-off-by: Somnath Kotur Reviewed-by: Randy Schacher Reviewed-by: Ajit Khaparde --- drivers/net/bnxt/tf_core/tf_em_common.c | 106 +++++++++++++++++++++++- drivers/net/bnxt/tf_core/tf_em_common.h | 27 +++++- drivers/net/bnxt/tf_core/tf_em_host.c | 23 +---- drivers/net/bnxt/tf_core/tf_em_system.c | 19 +---- 4 files changed, 137 insertions(+), 38 deletions(-) diff --git a/drivers/net/bnxt/tf_core/tf_em_common.c b/drivers/net/bnxt/tf_core/tf_em_common.c index 65b9abf4d6..10c3f16368 100644 --- a/drivers/net/bnxt/tf_core/tf_em_common.c +++ b/drivers/net/bnxt/tf_core/tf_em_common.c @@ -44,6 +44,28 @@ static enum tf_mem_type mem_type; /** Table scope array */ struct tf_tbl_scope_cb tbl_scopes[TF_NUM_TBL_SCOPE]; +/** Table scope reversal table + * + * Table scope are allocated from 15 to 0 within HCAPI RM. Because of the + * association between PFs and legacy table scopes, reverse table scope ids. + * 15 indicates 0, 14 indicates 1, etc... The application will only see the 0 + * based number. The firmware will only use the 0 based number. Only HCAPI RM + * and Truflow RM believe the number is 15. When HCAPI RM support allocation + * from low to high is supported, this adjust function can be removed. + */ +const uint32_t tbl_scope_reverse[TF_NUM_TBL_SCOPE] = { + 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 }; + +static uint32_t +tf_tbl_scope_adjust(uint32_t tbl_scope_id) +{ + if (tbl_scope_id < TF_NUM_TBL_SCOPE) + return tbl_scope_reverse[tbl_scope_id]; + else + return TF_TBL_SCOPE_INVALID; +}; + + /* API defined in tf_em.h */ struct tf_tbl_scope_cb * tbl_scope_cb_find(uint32_t tbl_scope_id) @@ -51,11 +73,17 @@ tbl_scope_cb_find(uint32_t tbl_scope_id) int i; struct tf_rm_is_allocated_parms parms; int allocated; + uint32_t rm_tbl_scope_id; + + rm_tbl_scope_id = tf_tbl_scope_adjust(tbl_scope_id); + + if (rm_tbl_scope_id == TF_TBL_SCOPE_INVALID) + return NULL; /* Check that id is valid */ parms.rm_db = eem_db[TF_DIR_RX]; parms.db_index = TF_EM_TBL_TYPE_TBL_SCOPE; - parms.index = tbl_scope_id; + parms.index = rm_tbl_scope_id; parms.allocated = &allocated; i = tf_rm_is_allocated(&parms); @@ -71,6 +99,61 @@ tbl_scope_cb_find(uint32_t tbl_scope_id) return NULL; } +int tf_tbl_scope_alloc(uint32_t *tbl_scope_id) +{ + int rc; + struct tf_rm_allocate_parms parms = { 0 }; + uint32_t rm_tbl_scope_id; + uint32_t usr_tbl_scope_id = TF_TBL_SCOPE_INVALID; + + /* Get Table Scope control block from the session pool */ + parms.rm_db = eem_db[TF_DIR_RX]; + parms.db_index = TF_EM_TBL_TYPE_TBL_SCOPE; + parms.index = &rm_tbl_scope_id; + + rc = tf_rm_allocate(&parms); + if (rc) { + TFP_DRV_LOG(ERR, + "Failed to allocate table scope rc:%s\n", + strerror(-rc)); + return rc; + } + + usr_tbl_scope_id = tf_tbl_scope_adjust(rm_tbl_scope_id); + + if (usr_tbl_scope_id == TF_TBL_SCOPE_INVALID) { + TFP_DRV_LOG(ERR, + "Invalid table scope allocated id:%d\n", + (int)rm_tbl_scope_id); + return -EINVAL; + } + *tbl_scope_id = usr_tbl_scope_id; + return 0; +}; + +int tf_tbl_scope_free(uint32_t tbl_scope_id) +{ + struct tf_rm_free_parms parms = { 0 }; + uint32_t rm_tbl_scope_id; + uint32_t rc; + + rm_tbl_scope_id = tf_tbl_scope_adjust(tbl_scope_id); + + if (rm_tbl_scope_id == TF_TBL_SCOPE_INVALID) { + TFP_DRV_LOG(ERR, + "Invalid table scope allocated id:%d\n", + (int)tbl_scope_id); + return -EINVAL; + } + + parms.rm_db = eem_db[TF_DIR_RX]; + parms.db_index = TF_EM_TBL_TYPE_TBL_SCOPE; + parms.index = rm_tbl_scope_id; + + rc = tf_rm_free(&parms); + return rc; +}; + int tf_create_tbl_pool_external(enum tf_dir dir, struct tf_tbl_scope_cb *tbl_scope_cb, @@ -706,9 +789,17 @@ tf_insert_eem_entry(struct tf_tbl_scope_cb *tbl_scope_cb, if (rc) { struct tf_rm_free_parms fparms = { 0 }; + uint32_t rm_tbl_scope_id; TFP_DRV_LOG(ERR, "System alloc mmap failed\n"); + + rm_tbl_scope_id = + tf_tbl_scope_adjust(parms->tbl_scope_id); + + if (rm_tbl_scope_id == TF_TBL_SCOPE_INVALID) + return -EINVAL; + /* Free Table control block */ fparms.rm_db = eem_db[TF_DIR_RX]; fparms.db_index = TF_EM_TBL_TYPE_TBL_SCOPE; @@ -1043,13 +1134,24 @@ int tf_tbl_ext_common_set(struct tf *tfp, if (rc) { struct tf_rm_free_parms fparms = { 0 }; + uint32_t rm_tbl_scope_id; + + /* TODO: support allocation of table scope from + * min in HCAPI RM. For now call adjust function + * on value obtained from RM. + */ + rm_tbl_scope_id = + tf_tbl_scope_adjust(parms->tbl_scope_id); + + if (rm_tbl_scope_id == TF_TBL_SCOPE_INVALID) + return -EINVAL; TFP_DRV_LOG(ERR, "System alloc mmap failed\n"); /* Free Table control block */ fparms.rm_db = eem_db[TF_DIR_RX]; fparms.db_index = TF_EM_TBL_TYPE_TBL_SCOPE; - fparms.index = parms->tbl_scope_id; + fparms.index = rm_tbl_scope_id; tf_rm_free(&fparms); return -EINVAL; } diff --git a/drivers/net/bnxt/tf_core/tf_em_common.h b/drivers/net/bnxt/tf_core/tf_em_common.h index fa313c458f..f71a487675 100644 --- a/drivers/net/bnxt/tf_core/tf_em_common.h +++ b/drivers/net/bnxt/tf_core/tf_em_common.h @@ -9,7 +9,6 @@ #include "tf_core.h" #include "tf_session.h" - /** * Function to search for table scope control block structure * with specified table scope ID. @@ -23,6 +22,32 @@ */ struct tf_tbl_scope_cb *tbl_scope_cb_find(uint32_t tbl_scope_id); +/** + * Table Scope Allocate + * + * Allocate a table scope + * + * [in/out] pointer to tbl_scope_id + * + * Returns: + * 0 - success + * -EINVAL - error + */ +int tf_tbl_scope_alloc(uint32_t *tbl_scope_id); + +/** + * Table Scope Free + * + * Free a table scope + * + * [in] tbl_scope_id to free + * + * Returns: + * 0 - success + * -EINVAL - error + */ +int tf_tbl_scope_free(uint32_t tbl_scope_id); + /** * Create and initialize a stack to use for action entries * diff --git a/drivers/net/bnxt/tf_core/tf_em_host.c b/drivers/net/bnxt/tf_core/tf_em_host.c index b5db94f3ef..cfcb12f3bc 100644 --- a/drivers/net/bnxt/tf_core/tf_em_host.c +++ b/drivers/net/bnxt/tf_core/tf_em_host.c @@ -374,14 +374,8 @@ tf_em_ext_alloc(struct tf *tfp, struct tf_alloc_tbl_scope_parms *parms) struct tf_tbl_scope_cb *tbl_scope_cb; struct hcapi_cfa_em_table *em_tables; struct tf_free_tbl_scope_parms free_parms; - struct tf_rm_allocate_parms aparms = { 0 }; - struct tf_rm_free_parms fparms = { 0 }; - - /* Get Table Scope control block from the session pool */ - aparms.rm_db = eem_db[TF_DIR_RX]; - aparms.db_index = TF_EM_TBL_TYPE_TBL_SCOPE; - aparms.index = (uint32_t *)&parms->tbl_scope_id; - rc = tf_rm_allocate(&aparms); + + rc = tf_tbl_scope_alloc(&parms->tbl_scope_id); if (rc) { TFP_DRV_LOG(ERR, "Failed to allocate table scope\n"); @@ -478,11 +472,7 @@ cleanup_full: return -EINVAL; cleanup: - /* Free Table control block */ - fparms.rm_db = eem_db[TF_DIR_RX]; - fparms.db_index = TF_EM_TBL_TYPE_TBL_SCOPE; - fparms.index = parms->tbl_scope_id; - tf_rm_free(&fparms); + tf_tbl_scope_free(parms->tbl_scope_id); return -EINVAL; } @@ -493,7 +483,6 @@ tf_em_ext_free(struct tf *tfp, int rc = 0; enum tf_dir dir; struct tf_tbl_scope_cb *tbl_scope_cb; - struct tf_rm_free_parms aparms = { 0 }; tbl_scope_cb = tbl_scope_cb_find(parms->tbl_scope_id); @@ -502,11 +491,7 @@ tf_em_ext_free(struct tf *tfp, return -EINVAL; } - /* Free Table control block */ - aparms.rm_db = eem_db[TF_DIR_RX]; - aparms.db_index = TF_EM_TBL_TYPE_TBL_SCOPE; - aparms.index = parms->tbl_scope_id; - rc = tf_rm_free(&aparms); + rc = tf_tbl_scope_free(parms->tbl_scope_id); if (rc) { TFP_DRV_LOG(ERR, "Failed to free table scope\n"); diff --git a/drivers/net/bnxt/tf_core/tf_em_system.c b/drivers/net/bnxt/tf_core/tf_em_system.c index 1c3c7029d4..32ee1ee691 100644 --- a/drivers/net/bnxt/tf_core/tf_em_system.c +++ b/drivers/net/bnxt/tf_core/tf_em_system.c @@ -364,9 +364,7 @@ tf_em_ext_alloc(struct tf *tfp, int rc; struct tf_session *tfs; struct tf_tbl_scope_cb *tbl_scope_cb; - struct tf_rm_allocate_parms aparms = { 0 }; struct tf_free_tbl_scope_parms free_parms; - struct tf_rm_free_parms fparms = { 0 }; int dir; int i; struct hcapi_cfa_em_table *em_tables; @@ -382,10 +380,7 @@ tf_em_ext_alloc(struct tf *tfp, return rc; } - aparms.rm_db = eem_db[TF_DIR_RX]; - aparms.db_index = TF_EM_TBL_TYPE_TBL_SCOPE; - aparms.index = (uint32_t *)&parms->tbl_scope_id; - rc = tf_rm_allocate(&aparms); + rc = tf_tbl_scope_alloc(&parms->tbl_scope_id); if (rc) { TFP_DRV_LOG(ERR, "Failed to allocate table scope\n"); @@ -473,10 +468,7 @@ cleanup_full: cleanup: /* Free Table control block */ - fparms.rm_db = eem_db[TF_DIR_RX]; - fparms.db_index = TF_EM_TBL_TYPE_TBL_SCOPE; - fparms.index = parms->tbl_scope_id; - tf_rm_free(&fparms); + tf_tbl_scope_free(parms->tbl_scope_id); return -EINVAL; } @@ -488,7 +480,6 @@ tf_em_ext_free(struct tf *tfp, struct tf_session *tfs; struct tf_tbl_scope_cb *tbl_scope_cb; int dir; - struct tf_rm_free_parms aparms = { 0 }; TF_CHECK_PARMS2(tfp, parms); @@ -503,11 +494,7 @@ tf_em_ext_free(struct tf *tfp, tbl_scope_cb = &tbl_scopes[parms->tbl_scope_id]; - /* Free Table control block */ - aparms.rm_db = eem_db[TF_DIR_RX]; - aparms.db_index = TF_EM_TBL_TYPE_TBL_SCOPE; - aparms.index = parms->tbl_scope_id; - rc = tf_rm_free(&aparms); + rc = tf_tbl_scope_free(parms->tbl_scope_id); if (rc) { TFP_DRV_LOG(ERR, "Failed to free table scope\n"); -- 2.20.1