diff options
| author | Eliezer Tamir <eliezert@broadcom.com> | 2008-02-28 11:57:29 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-02-28 11:57:29 -0800 |
| commit | e8717a47266b1527e620ddf262613b9d010bbbe7 (patch) | |
| tree | b793e6785a52e2442701114fcd59b4da941ee0ef /drivers/net/bnx2x_init.h | |
| parent | 228241eb58ad13e7cf2ddd9c92eabb5c3055cf5c (diff) | |
| download | lwn-e8717a47266b1527e620ddf262613b9d010bbbe7.tar.gz lwn-e8717a47266b1527e620ddf262613b9d010bbbe7.zip | |
[BNX2X]: Prevent PCI queue overflow
Limit traffic through an internal queue to prevent overflow.
Signed-off-by: Eliezer Tamir <eliezert@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bnx2x_init.h')
| -rw-r--r-- | drivers/net/bnx2x_init.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/net/bnx2x_init.h b/drivers/net/bnx2x_init.h index 04f93bff2ef4..dcaecc53bdb1 100644 --- a/drivers/net/bnx2x_init.h +++ b/drivers/net/bnx2x_init.h @@ -1,6 +1,6 @@ /* bnx2x_init.h: Broadcom Everest network driver. * - * Copyright (c) 2007 Broadcom Corporation + * Copyright (c) 2007-2008 Broadcom Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -409,7 +409,7 @@ static void bnx2x_init_pxp(struct bnx2x *bp) pci_read_config_word(bp->pdev, bp->pcie_cap + PCI_EXP_DEVCTL, (u16 *)&val); - DP(NETIF_MSG_HW, "read 0x%x from devctl\n", val); + DP(NETIF_MSG_HW, "read 0x%x from devctl\n", (u16)val); w_order = ((val & PCI_EXP_DEVCTL_PAYLOAD) >> 5); r_order = ((val & PCI_EXP_DEVCTL_READRQ) >> 12); @@ -472,10 +472,14 @@ static void bnx2x_init_pxp(struct bnx2x *bp) REG_WR(bp, PXP2_REG_PSWRQ_BW_WR, val); REG_WR(bp, PXP2_REG_RQ_WR_MBS0, w_order); - REG_WR(bp, PXP2_REG_RQ_WR_MBS0 + 8, w_order); + REG_WR(bp, PXP2_REG_RQ_WR_MBS1, w_order); REG_WR(bp, PXP2_REG_RQ_RD_MBS0, r_order); - REG_WR(bp, PXP2_REG_RQ_RD_MBS0 + 8, r_order); + REG_WR(bp, PXP2_REG_RQ_RD_MBS1, r_order); + if (r_order == MAX_RD_ORD) + REG_WR(bp, PXP2_REG_RQ_PDR_LIMIT, 0xe00); + + REG_WR(bp, PXP2_REG_WR_USDMDP_TH, (0x18 << w_order)); REG_WR(bp, PXP2_REG_WR_DMAE_TH, (128 << w_order)/16); } |