From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Dmitry Kravkov" Subject: [net-next 2/3] bnx2x: prevent false parity error in MSI-X memory of HC block Date: Tue, 19 Oct 2010 17:13:09 +0200 Message-ID: <1287501189.740.42.camel@lb-tlvb-dmitry> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Cc: "Vladislav Zolotarov" , "Eilon Greenstein" To: davem@davemloft.net, netdev@vger.kernel.org Return-path: Received: from mms2.broadcom.com ([216.31.210.18]:1282 "EHLO mms2.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753312Ab0JSPaZ (ORCPT ); Tue, 19 Oct 2010 11:30:25 -0400 Sender: netdev-owner@vger.kernel.org List-ID: From: Vladislav Zolotarov Signed-off-by: Dmitry Kravkov Signed-off-by: Vladislav Zolotarov Signed-off-by: Eilon Greenstein --- drivers/net/bnx2x/bnx2x_main.c | 28 +++++++++++++++++++++++++++- drivers/net/bnx2x/bnx2x_reg.h | 6 +++++- 2 files changed, 32 insertions(+), 2 deletions(-) diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c index 3f49b55..f22e283 100644 --- a/drivers/net/bnx2x/bnx2x_main.c +++ b/drivers/net/bnx2x/bnx2x_main.c @@ -5457,7 +5457,8 @@ static int bnx2x_init_hw_func(struct bnx2x *bp) struct bnx2x_ilt *ilt = BP_ILT(bp); u16 cdu_ilt_start; u32 addr, val; - int i; + u32 main_mem_base, main_mem_size, main_mem_prty_clr; + int i, main_mem_width; DP(BNX2X_MSG_MCP, "starting func init func %d\n", func); @@ -5706,6 +5707,31 @@ static int bnx2x_init_hw_func(struct bnx2x *bp) bnx2x_init_block(bp, MCP_BLOCK, FUNC0_STAGE + func); bnx2x_init_block(bp, DMAE_BLOCK, FUNC0_STAGE + func); + if (CHIP_IS_E1x(bp)) { + main_mem_size = HC_REG_MAIN_MEMORY_SIZE / 2; /*dwords*/ + main_mem_base = HC_REG_MAIN_MEMORY + + BP_PORT(bp) * (main_mem_size * 4); + main_mem_prty_clr = HC_REG_HC_PRTY_STS_CLR; + main_mem_width = 8; + + val = REG_RD(bp, main_mem_prty_clr); + if (val) + DP(BNX2X_MSG_MCP, "Hmmm... Parity errors in HC " + "block during " + "function init (0x%x)!\n", val); + + /* Clear "false" parity errors in MSI-X table */ + for (i = main_mem_base; + i < main_mem_base + main_mem_size * 4; + i += main_mem_width) { + bnx2x_read_dmae(bp, i, main_mem_width / 4); + bnx2x_write_dmae(bp, bnx2x_sp_mapping(bp, wb_data), + i, main_mem_width / 4); + } + /* Clear HC parity attention */ + REG_RD(bp, main_mem_prty_clr); + } + bnx2x_phy_probe(&bp->link_params); return 0; diff --git a/drivers/net/bnx2x/bnx2x_reg.h b/drivers/net/bnx2x/bnx2x_reg.h index 18a8628..1cefe48 100644 --- a/drivers/net/bnx2x/bnx2x_reg.h +++ b/drivers/net/bnx2x/bnx2x_reg.h @@ -800,9 +800,13 @@ #define HC_REG_HC_PRTY_MASK 0x1080a0 /* [R 3] Parity register #0 read */ #define HC_REG_HC_PRTY_STS 0x108094 -#define HC_REG_INT_MASK 0x108108 +/* [RC 3] Parity register #0 read clear */ +#define HC_REG_HC_PRTY_STS_CLR 0x108098 +#define HC_REG_INT_MASK 0x108108 #define HC_REG_LEADING_EDGE_0 0x108040 #define HC_REG_LEADING_EDGE_1 0x108048 +#define HC_REG_MAIN_MEMORY 0x108800 +#define HC_REG_MAIN_MEMORY_SIZE 152 #define HC_REG_P0_PROD_CONS 0x108200 #define HC_REG_P1_PROD_CONS 0x108400 #define HC_REG_PBA_COMMAND 0x108140 -- 1.7.1