From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id B3214A0519; Fri, 3 Jul 2020 01:31:00 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id C47DF1D9E9; Fri, 3 Jul 2020 01:29:07 +0200 (CEST) Received: from rnd-relay.smtp.broadcom.com (rnd-relay.smtp.broadcom.com [192.19.229.170]) by dpdk.org (Postfix) with ESMTP id 129431D69C for ; Fri, 3 Jul 2020 01:28:46 +0200 (CEST) Received: from mail-irv-17.broadcom.com (mail-irv-17.lvn.broadcom.net [10.75.242.48]) by rnd-relay.smtp.broadcom.com (Postfix) with ESMTP id 5A47B30C191; Thu, 2 Jul 2020 16:28:45 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.10.3 rnd-relay.smtp.broadcom.com 5A47B30C191 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=broadcom.com; s=dkimrelay; t=1593732525; bh=45ksyCS8L1BkLvEpvRkITepGOWyLk/D19eA1pDY3x/g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IkK8QbQtg90XRWZdtuH7fYhknl1gA93KiGqO4RogdDbrcyEvhxs5JMHwjWUIOTSVm IK17aw1LOutTH/85oAyurq2q4S8J/TWzGaKgnhYOHQdjyEEouEskaoFt8HgjzYEgbX sU2vxhmkgJfbSm+5/LAi7974S8igrG6DxXgbKBOI= Received: from localhost.localdomain (unknown [10.230.185.215]) by mail-irv-17.broadcom.com (Postfix) with ESMTP id CC61C14008B; Thu, 2 Jul 2020 16:28:44 -0700 (PDT) From: Ajit Khaparde To: dev@dpdk.org Cc: Shahaji Bhosle , Venkat Duvvuru , Randy Schacher Date: Thu, 2 Jul 2020 16:28:01 -0700 Message-Id: <20200702232838.92817-15-ajit.khaparde@broadcom.com> X-Mailer: git-send-email 2.21.1 (Apple Git-122.3) In-Reply-To: <20200702232838.92817-1-ajit.khaparde@broadcom.com> References: <1f5421dc-0453-6dc8-09c2-ddfff6eb4888@intel.com> <20200702232838.92817-1-ajit.khaparde@broadcom.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH v4 14/51] net/bnxt: support two-level priority for TCAMs X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Shahaji Bhosle Allow TCAM indexes to be allocated from top or bottom. If the priority is set to 0, allocate from the lowest tcam indexes i.e. from top. Any other value, allocate it from the highest tcam indexes i.e. from bottom. Signed-off-by: Shahaji Bhosle Signed-off-by: Venkat Duvvuru Reviewed-by: Randy Schacher Reviewed-by: Ajit Khaparde --- drivers/net/bnxt/tf_core/tf_core.c | 36 ++++++++++++++++++++++++------ drivers/net/bnxt/tf_core/tf_core.h | 4 +++- drivers/net/bnxt/tf_core/tf_em.c | 6 ++--- drivers/net/bnxt/tf_core/tf_tbl.c | 2 +- 4 files changed, 35 insertions(+), 13 deletions(-) diff --git a/drivers/net/bnxt/tf_core/tf_core.c b/drivers/net/bnxt/tf_core/tf_core.c index 81a88e211..eac57e7bd 100644 --- a/drivers/net/bnxt/tf_core/tf_core.c +++ b/drivers/net/bnxt/tf_core/tf_core.c @@ -893,7 +893,7 @@ tf_alloc_tcam_entry(struct tf *tfp, struct tf_alloc_tcam_entry_parms *parms) { int rc; - int index; + int index = 0; struct tf_session *tfs; struct bitalloc *session_pool; @@ -916,12 +916,34 @@ tf_alloc_tcam_entry(struct tf *tfp, if (rc) return rc; - index = ba_alloc(session_pool); - if (index == BA_FAIL) { - PMD_DRV_LOG(ERR, "%s: %s: No resource available\n", - tf_dir_2_str(parms->dir), - tf_tcam_tbl_2_str(parms->tcam_tbl_type)); - return -ENOMEM; + /* + * priority 0: allocate from top of the tcam i.e. high + * priority !0: allocate index from bottom i.e lowest + */ + if (parms->priority) { + for (index = session_pool->size - 1; index >= 0; index--) { + if (ba_inuse(session_pool, + index) == BA_ENTRY_FREE) { + break; + } + } + if (ba_alloc_index(session_pool, + index) == BA_FAIL) { + TFP_DRV_LOG(ERR, + "%s: %s: ba_alloc index %d failed\n", + tf_dir_2_str(parms->dir), + tf_tcam_tbl_2_str(parms->tcam_tbl_type), + index); + return -ENOMEM; + } + } else { + index = ba_alloc(session_pool); + if (index == BA_FAIL) { + TFP_DRV_LOG(ERR, "%s: %s: Out of resource\n", + tf_dir_2_str(parms->dir), + tf_tcam_tbl_2_str(parms->tcam_tbl_type)); + return -ENOMEM; + } } parms->idx = index; diff --git a/drivers/net/bnxt/tf_core/tf_core.h b/drivers/net/bnxt/tf_core/tf_core.h index 74ed24e5a..f1ef00b30 100644 --- a/drivers/net/bnxt/tf_core/tf_core.h +++ b/drivers/net/bnxt/tf_core/tf_core.h @@ -799,7 +799,9 @@ struct tf_alloc_tcam_entry_parms { */ uint8_t *mask; /** - * [in] Priority of entry requested (definition TBD) + * [in] Priority of entry requested + * 0: index from top i.e. highest priority first + * !0: index from bottom i.e lowest priority first */ uint32_t priority; /** diff --git a/drivers/net/bnxt/tf_core/tf_em.c b/drivers/net/bnxt/tf_core/tf_em.c index fd1797e39..91cbc6299 100644 --- a/drivers/net/bnxt/tf_core/tf_em.c +++ b/drivers/net/bnxt/tf_core/tf_em.c @@ -479,8 +479,7 @@ int tf_insert_em_internal_entry(struct tf *tfp, rc = stack_pop(pool, &index); if (rc != 0) { - PMD_DRV_LOG - (ERR, + TFP_DRV_LOG(ERR, "dir:%d, EM entry index allocation failed\n", parms->dir); return rc; @@ -495,8 +494,7 @@ int tf_insert_em_internal_entry(struct tf *tfp, if (rc != 0) return -1; - PMD_DRV_LOG - (ERR, + TFP_DRV_LOG(INFO, "Internal entry @ Index:%d rptr_index:0x%x rptr_entry:0x%x num_of_entries:%d\n", index * TF_SESSION_EM_ENTRY_SIZE, rptr_index, diff --git a/drivers/net/bnxt/tf_core/tf_tbl.c b/drivers/net/bnxt/tf_core/tf_tbl.c index 26313ed3c..4e236d56c 100644 --- a/drivers/net/bnxt/tf_core/tf_tbl.c +++ b/drivers/net/bnxt/tf_core/tf_tbl.c @@ -1967,7 +1967,7 @@ void tf_dump_dma(struct tf *tfp, uint32_t tbl_scope_id) tbl_scope_cb = tbl_scope_cb_find(session, tbl_scope_id); if (tbl_scope_cb == NULL) - PMD_DRV_LOG(ERR, "No table scope\n"); + TFP_DRV_LOG(ERR, "No table scope\n"); for (dir = 0; dir < TF_DIR_MAX; dir++) { printf("Direction %s:\n", (dir == TF_DIR_RX ? "Rx" : "Tx")); -- 2.21.1 (Apple Git-122.3)