From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B6123AD26 for ; Mon, 19 Jun 2023 11:01:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 36FD1C433C0; Mon, 19 Jun 2023 11:01:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1687172461; bh=dEVVEPlgqo1KsANVwCPpfvIBb6+luo1QKibp34e95AU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=w8r00SciQiuMh6ep64dmlpMmWPAVFJLBrDx6THs8fPv3Vmj5NlCrum+OGs8MC3BzL MEAd4PWaDN7y5DAU6lztQG+RwKl0q6I7joUmPnER8eSK+uiknxDG/Sx8p9+eJM8P4V 9Hq93eNuJj+K8HmOPQTSne4NjkyqKGdUpR5NuncE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nithin Dabilpuram , Naveen Mamindlapalli , Sridhar Samudrala , "David S. Miller" , Sasha Levin Subject: [PATCH 5.15 076/107] octeontx2-af: fix lbk link credits on cn10k Date: Mon, 19 Jun 2023 12:31:00 +0200 Message-ID: <20230619102145.069605154@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230619102141.541044823@linuxfoundation.org> References: <20230619102141.541044823@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Nithin Dabilpuram [ Upstream commit 87e12a17eef476bbf768dc3a74419ad461f36fbc ] Fix LBK link credits on CN10K to be same as CN9K i.e 16 * MAX_LBK_DATA_RATE instead of current scheme of calculation based on LBK buf length / FIFO size. Fixes: 6e54e1c5399a ("octeontx2-af: cn10K: Add MTU configuration") Signed-off-by: Nithin Dabilpuram Signed-off-by: Naveen Mamindlapalli Reviewed-by: Sridhar Samudrala Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c index 6ea14c8bd59b8..dee2f2086bb5d 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c @@ -4067,10 +4067,6 @@ int rvu_mbox_handler_nix_set_rx_cfg(struct rvu *rvu, struct nix_rx_cfg *req, static u64 rvu_get_lbk_link_credits(struct rvu *rvu, u16 lbk_max_frs) { - /* CN10k supports 72KB FIFO size and max packet size of 64k */ - if (rvu->hw->lbk_bufsize == 0x12000) - return (rvu->hw->lbk_bufsize - lbk_max_frs) / 16; - return 1600; /* 16 * max LBK datarate = 16 * 100Gbps */ } -- 2.39.2