Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1423427AbbD2PAK (ORCPT ); Wed, 29 Apr 2015 11:00:10 -0400 Received: from mail-bn1bon0110.outbound.protection.outlook.com ([157.56.111.110]:16802 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1423277AbbD2O47 (ORCPT ); Wed, 29 Apr 2015 10:56:59 -0400 Authentication-Results: spf=fail (sender IP is 192.88.168.50) smtp.mailfrom=freescale.com; freescale.mail.onmicrosoft.com; dkim=none (message not signed) header.d=none; From: Madalin Bucur To: , CC: , Madalin Bucur Subject: [RFC,v3 05/10] dpaa_eth: add driver's Tx queue selection mechanism Date: Wed, 29 Apr 2015 17:56:40 +0300 Message-ID: <1430319405-31280-4-git-send-email-madalin.bucur@freescale.com> X-Mailer: git-send-email 1.5.6.5 In-Reply-To: <1430319405-31280-3-git-send-email-madalin.bucur@freescale.com> References: <1430319405-31280-1-git-send-email-madalin.bucur@freescale.com> <1430319405-31280-2-git-send-email-madalin.bucur@freescale.com> <1430319405-31280-3-git-send-email-madalin.bucur@freescale.com> Reply-To: X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:192.88.168.50;CTRY:US;IPV:NLI;EFV:NLI;BMV:1;SFV:NSPM;SFS:(10019020)(6009001)(339900001)(189002)(199003)(62966003)(77096005)(106466001)(85426001)(47776003)(229853001)(86362001)(2950100001)(87936001)(105606002)(6806004)(53806999)(48376002)(5001770100001)(104016003)(46102003)(19580395003)(77156002)(33646002)(43066003)(50466002)(36756003)(50226001)(49486002)(19580405001)(50986999)(76176999)(142933001)(4001430100001);DIR:OUT;SFP:1102;SCL:1;SRVR:BY2PR03MB554;H:tx30smr01.am.freescale.net;FPR:;SPF:Fail;MLV:sfv;MX:1;A:1;LANG:en; MIME-Version: 1.0 Content-Type: text/plain X-Microsoft-Antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:BY2PR03MB554; X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:; X-Exchange-Antispam-Report-CFA-Test: BCL:0;PCL:0;RULEID:(601004)(5005006)(5002010);SRVR:BY2PR03MB554;BCL:0;PCL:0;RULEID:;SRVR:BY2PR03MB554; X-Forefront-PRVS: 05610E64EE X-OriginatorOrg: freescale.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Apr 2015 14:56:54.7035 (UTC) X-MS-Exchange-CrossTenant-Id: 710a03f5-10f6-4d38-9ff4-a80b81da590d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=710a03f5-10f6-4d38-9ff4-a80b81da590d;Ip=[192.88.168.50];Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY2PR03MB554 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4494 Lines: 109 Allow the selection of the transmission queue based on the CPU id. Signed-off-by: Madalin Bucur --- drivers/net/ethernet/freescale/dpaa/Kconfig | 10 ++++++++++ drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 3 +++ drivers/net/ethernet/freescale/dpaa/dpaa_eth.h | 6 ++++++ drivers/net/ethernet/freescale/dpaa/dpaa_eth_common.c | 9 +++++++++ drivers/net/ethernet/freescale/dpaa/dpaa_eth_common.h | 4 ++++ 5 files changed, 32 insertions(+) diff --git a/drivers/net/ethernet/freescale/dpaa/Kconfig b/drivers/net/ethernet/freescale/dpaa/Kconfig index 9e6a39f..3fa7925 100644 --- a/drivers/net/ethernet/freescale/dpaa/Kconfig +++ b/drivers/net/ethernet/freescale/dpaa/Kconfig @@ -11,6 +11,16 @@ menuconfig FSL_DPAA_ETH if FSL_DPAA_ETH +config FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE + bool "Use driver's Tx queue selection mechanism" + default y + ---help--- + The DPAA-Ethernet driver defines a ndo_select_queue() callback for optimal selection + of the egress FQ. That will override the XPS support for this netdevice. + If for whatever reason you want to be in control of the egress FQ-to-CPU selection and mapping, + or simply don't want to use the driver's ndo_select_queue() callback, then unselect this + and use the standard XPS support instead. + config FSL_DPAA_ETH_MAX_BUF_COUNT int "Maximum number of buffers in private bpool" range 64 2048 diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c index ba4bd3a..2ba929b 100644 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c @@ -387,6 +387,9 @@ static const struct net_device_ops dpa_private_ops = { .ndo_get_stats64 = dpa_get_stats64, .ndo_set_mac_address = dpa_set_mac_address, .ndo_validate_addr = eth_validate_addr, +#ifdef CONFIG_FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE + .ndo_select_queue = dpa_select_queue, +#endif .ndo_change_mtu = dpa_change_mtu, .ndo_set_rx_mode = dpa_set_rx_mode, .ndo_init = dpa_ndo_init, diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.h b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.h index 7656c85..0162a21 100644 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.h +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.h @@ -431,9 +431,15 @@ static inline void _dpa_assign_wq(struct dpa_fq *fq) } } +#ifdef CONFIG_FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE +/* Use in lieu of skb_get_queue_mapping() */ +#define dpa_get_queue_mapping(skb) \ + smp_processor_id() +#else /* Use the queue selected by XPS */ #define dpa_get_queue_mapping(skb) \ skb_get_queue_mapping(skb) +#endif static inline void _dpa_bp_free_pf(void *addr) { diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth_common.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth_common.c index dc8bc41..9b137f8 100644 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth_common.c +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth_common.c @@ -607,6 +607,15 @@ bool dpa_bpid2pool_use(int bpid) return false; } +#ifdef CONFIG_FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE +u16 dpa_select_queue(struct net_device *net_dev, struct sk_buff *skb, + void *accel_priv, select_queue_fallback_t fallback) +{ + return dpa_get_queue_mapping(skb); +} +EXPORT_SYMBOL(dpa_select_queue); +#endif + struct dpa_fq *dpa_fq_alloc(struct device *dev, const struct fqid_cell *fqids, struct list_head *list, diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth_common.h b/drivers/net/ethernet/freescale/dpaa/dpaa_eth_common.h index 7355cd6..d837d40 100644 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth_common.h +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth_common.h @@ -89,6 +89,10 @@ struct dpa_bp *dpa_bpid2pool(int bpid); void dpa_bpid2pool_map(int bpid, struct dpa_bp *dpa_bp); bool dpa_bpid2pool_use(int bpid); void dpa_bp_drain(struct dpa_bp *bp); +#ifdef CONFIG_FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE +u16 dpa_select_queue(struct net_device *net_dev, struct sk_buff *skb, + void *accel_priv, select_queue_fallback_t fallback); +#endif struct dpa_fq *dpa_fq_alloc(struct device *dev, const struct fqid_cell *fqids, struct list_head *list, -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/