From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Yaniv Rosner" Subject: [net-next v2 2/9] bnx2x: ETS changes Date: Mon, 28 Nov 2011 12:49:46 +0200 Message-ID: <1322477393-22904-3-git-send-email-yanivr@broadcom.com> References: <1322477393-22904-1-git-send-email-yanivr@broadcom.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: netdev , "Yaniv Rosner" , "Eilon Greenstein" To: "David Miller" Return-path: Received: from mms2.broadcom.com ([216.31.210.18]:3516 "EHLO mms2.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752826Ab1K1Iun (ORCPT ); Mon, 28 Nov 2011 03:50:43 -0500 In-Reply-To: <1322477393-22904-1-git-send-email-yanivr@broadcom.com> Sender: netdev-owner@vger.kernel.org List-ID: Fix a problem when new traffic class is created with 0% BW, the ETS is not conforming. Signed-off-by: Yaniv Rosner Signed-off-by: Eilon Greenstein --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c | 19 ++++++++++++++++--- drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h | 2 +- 2 files changed, 17 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 8e6909a..de03730 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -874,23 +874,36 @@ static int bnx2x_ets_e3b0_set_cos_bw(struct bnx2x *bp, ******************************************************************************/ static int bnx2x_ets_e3b0_get_total_bw( const struct link_params *params, - const struct bnx2x_ets_params *ets_params, + struct bnx2x_ets_params *ets_params, u16 *total_bw) { struct bnx2x *bp = params->bp; u8 cos_idx = 0; + u8 is_bw_cos_exist = 0; *total_bw = 0 ; + /* Calculate total BW requested */ for (cos_idx = 0; cos_idx < ets_params->num_of_cos; cos_idx++) { if (bnx2x_cos_state_bw == ets_params->cos[cos_idx].state) { + is_bw_cos_exist = 1; + if (!ets_params->cos[cos_idx].params.bw_params.bw) { + DP(NETIF_MSG_LINK, "bnx2x_ets_E3B0_config BW" + "was set to 0\n"); + /* + * This is to prevent a state when ramrods + * can't be sent + */ + ets_params->cos[cos_idx].params.bw_params.bw + = 1; + } *total_bw += ets_params->cos[cos_idx].params.bw_params.bw; } } /* Check total BW is valid */ - if ((100 != *total_bw) || (0 == *total_bw)) { + if ((1 == is_bw_cos_exist) && (100 != *total_bw)) { if (0 == *total_bw) { DP(NETIF_MSG_LINK, "bnx2x_ets_E3B0_config toatl BW shouldn't be 0\n"); @@ -1100,7 +1113,7 @@ static int bnx2x_ets_e3b0_sp_set_pri_cli_reg(const struct link_params *params, ******************************************************************************/ int bnx2x_ets_e3b0_config(const struct link_params *params, const struct link_vars *vars, - const struct bnx2x_ets_params *ets_params) + struct bnx2x_ets_params *ets_params) { struct bnx2x *bp = params->bp; int bnx2x_status = 0; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h index 2a46e63..e02a68a 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h @@ -479,7 +479,7 @@ int bnx2x_ets_strict(const struct link_params *params, const u8 strict_cos); /* Configure the COS to ETS according to BW and SP settings.*/ int bnx2x_ets_e3b0_config(const struct link_params *params, const struct link_vars *vars, - const struct bnx2x_ets_params *ets_params); + struct bnx2x_ets_params *ets_params); /* Read pfc statistic*/ void bnx2x_pfc_statistic(struct link_params *params, struct link_vars *vars, u32 pfc_frames_sent[2], -- 1.7.7.1