From patchwork Thu Jan 21 02:58:03 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Carlson X-Patchwork-Id: 43407 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id A365BB7CD9 for ; Thu, 21 Jan 2010 13:58:45 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754036Ab0AUC6h (ORCPT ); Wed, 20 Jan 2010 21:58:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751663Ab0AUC6f (ORCPT ); Wed, 20 Jan 2010 21:58:35 -0500 Received: from mms1.broadcom.com ([216.31.210.17]:1734 "EHLO mms1.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753246Ab0AUC61 (ORCPT ); Wed, 20 Jan 2010 21:58:27 -0500 Received: from [10.9.200.133] by mms1.broadcom.com with ESMTP (Broadcom SMTP Relay (Email Firewall v6.3.2)); Wed, 20 Jan 2010 18:58:17 -0800 X-Server-Uuid: 02CED230-5797-4B57-9875-D5D2FEE4708A Received: from mail-irva-12.broadcom.com (10.11.16.101) by IRVEXCHHUB02.corp.ad.broadcom.com (10.9.200.133) with Microsoft SMTP Server id 8.2.213.0; Wed, 20 Jan 2010 18:59:41 -0800 Received: from xw6200 (mcarlson.broadcom.com [10.12.148.101]) by mail-irva-12.broadcom.com (Postfix) with ESMTP id 8427D69CA8; Wed, 20 Jan 2010 18:58:17 -0800 (PST) From: "Matt Carlson" To: davem@davemloft.net cc: netdev@vger.kernel.org, andy@greyhouse.net, "Matt Carlson" Subject: [PATCH net-next 02/10] tg3: Improve internal resource allocations Date: Wed, 20 Jan 2010 18:58:03 -0800 Message-ID: <1264042691-28284-3-git-send-email-mcarlson@broadcom.com> X-Mailer: git-send-email 1.6.4.4 MIME-Version: 1.0 X-WSS-ID: 67491D4368G3691726-01-01 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The 5717 and the 57765 have more resources at their disposal internally. This patch tunes the driver to get better performance. The adjustments made here only apply to the 57765 and 5717 asic revs. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Reviewed-by: Benjamin Li --- drivers/net/tg3.c | 25 +++++++++++++++++++++---- drivers/net/tg3.h | 4 ++++ 2 files changed, 25 insertions(+), 4 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index b80e7ee..adb579f 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -8152,7 +8152,11 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy) /* Prevent chip from dropping frames when flow control * is enabled. */ - tw32_f(MAC_LOW_WMARK_MAX_RX_FRAME, 2); + if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) + val = 1; + else + val = 2; + tw32_f(MAC_LOW_WMARK_MAX_RX_FRAME, val); if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 && (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)) { @@ -14091,9 +14095,22 @@ static void __devinit tg3_init_link_config(struct tg3 *tp) static void __devinit tg3_init_bufmgr_config(struct tg3 *tp) { - if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS && - GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717 && - GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_57765) { + if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 || + GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) { + tp->bufmgr_config.mbuf_read_dma_low_water = + DEFAULT_MB_RDMA_LOW_WATER_5705; + tp->bufmgr_config.mbuf_mac_rx_low_water = + DEFAULT_MB_MACRX_LOW_WATER_57765; + tp->bufmgr_config.mbuf_high_water = + DEFAULT_MB_HIGH_WATER_57765; + + tp->bufmgr_config.mbuf_read_dma_low_water_jumbo = + DEFAULT_MB_RDMA_LOW_WATER_5705; + tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo = + DEFAULT_MB_MACRX_LOW_WATER_JUMBO_57765; + tp->bufmgr_config.mbuf_high_water_jumbo = + DEFAULT_MB_HIGH_WATER_JUMBO_57765; + } else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) { tp->bufmgr_config.mbuf_read_dma_low_water = DEFAULT_MB_RDMA_LOW_WATER_5705; tp->bufmgr_config.mbuf_mac_rx_low_water = diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index 44a505d..91139fd 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -1203,14 +1203,18 @@ #define DEFAULT_MB_MACRX_LOW_WATER 0x00000020 #define DEFAULT_MB_MACRX_LOW_WATER_5705 0x00000010 #define DEFAULT_MB_MACRX_LOW_WATER_5906 0x00000004 +#define DEFAULT_MB_MACRX_LOW_WATER_57765 0x0000002a #define DEFAULT_MB_MACRX_LOW_WATER_JUMBO 0x00000098 #define DEFAULT_MB_MACRX_LOW_WATER_JUMBO_5780 0x0000004b +#define DEFAULT_MB_MACRX_LOW_WATER_JUMBO_57765 0x0000007e #define BUFMGR_MB_HIGH_WATER 0x00004418 #define DEFAULT_MB_HIGH_WATER 0x00000060 #define DEFAULT_MB_HIGH_WATER_5705 0x00000060 #define DEFAULT_MB_HIGH_WATER_5906 0x00000010 +#define DEFAULT_MB_HIGH_WATER_57765 0x000000a0 #define DEFAULT_MB_HIGH_WATER_JUMBO 0x0000017c #define DEFAULT_MB_HIGH_WATER_JUMBO_5780 0x00000096 +#define DEFAULT_MB_HIGH_WATER_JUMBO_57765 0x000000ea #define BUFMGR_RX_MB_ALLOC_REQ 0x0000441c #define BUFMGR_MB_ALLOC_BIT 0x10000000 #define BUFMGR_RX_MB_ALLOC_RESP 0x00004420