From: "Yuval Mintz" <yuvalmin@broadcom.com>
To: davem@davemloft.net, netdev@vger.kernel.org
Cc: eilong@broadcom.com, ariele@broadcom.com,
"Yuval Mintz" <yuvalmin@broadcom.com>
Subject: [PATCH net-next 06/13] bnx2x: nvram enables dropless flow control
Date: Sun, 2 Dec 2012 16:05:50 +0200 [thread overview]
Message-ID: <1354457157-4730-7-git-send-email-yuvalmin@broadcom.com> (raw)
In-Reply-To: <1354457157-4730-1-git-send-email-yuvalmin@broadcom.com>
It is now possible to enable dropless flow control via nvram.
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
drivers/net/ethernet/broadcom/bnx2x/bnx2x.h | 2 +-
drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h | 13 +++++++++++--
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 20 +++++++++++++++++++-
3 files changed, 31 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 641d884..03647bf 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -1488,7 +1488,7 @@ struct bnx2x {
int qm_cid_count;
- int dropless_fc;
+ bool dropless_fc;
void *t2;
dma_addr_t t2_mapping;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
index 9a51d49..3369a50 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
@@ -500,7 +500,15 @@ struct port_hw_cfg { /* port 0: 0x12c port 1: 0x2bc */
u32 e3_cmn_pin_cfg1; /* 0x170 */
#define PORT_HW_CFG_E3_OVER_CURRENT_MASK 0x000000FF
#define PORT_HW_CFG_E3_OVER_CURRENT_SHIFT 0
- u32 reserved0[7]; /* 0x174 */
+
+ /* pause on host ring */
+ u32 generic_features; /* 0x174 */
+ #define PORT_HW_CFG_PAUSE_ON_HOST_RING_MASK 0x00000001
+ #define PORT_HW_CFG_PAUSE_ON_HOST_RING_SHIFT 0
+ #define PORT_HW_CFG_PAUSE_ON_HOST_RING_DISABLED 0x00000000
+ #define PORT_HW_CFG_PAUSE_ON_HOST_RING_ENABLED 0x00000001
+
+ u32 reserved0[6]; /* 0x178 */
u32 aeu_int_mask; /* 0x190 */
@@ -1518,12 +1526,13 @@ enum mf_cfg_afex_vlan_mode {
/* This structure is not applicable and should not be accessed on 57711 */
struct func_ext_cfg {
u32 func_cfg;
- #define MACP_FUNC_CFG_FLAGS_MASK 0x000000FF
+ #define MACP_FUNC_CFG_FLAGS_MASK 0x0000007F
#define MACP_FUNC_CFG_FLAGS_SHIFT 0
#define MACP_FUNC_CFG_FLAGS_ENABLED 0x00000001
#define MACP_FUNC_CFG_FLAGS_ETHERNET 0x00000002
#define MACP_FUNC_CFG_FLAGS_ISCSI_OFFLOAD 0x00000004
#define MACP_FUNC_CFG_FLAGS_FCOE_OFFLOAD 0x00000008
+ #define MACP_FUNC_CFG_PAUSE_ON_HOST_RING 0x00000080
u32 iscsi_mac_addr_upper;
u32 iscsi_mac_addr_lower;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 62fcf0f..89b3d10 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -10641,8 +10641,26 @@ static void __devinit bnx2x_get_mac_hwinfo(struct bnx2x *bp)
"bad Ethernet MAC address configuration: %pM\n"
"change it manually before bringing up the appropriate network interface\n",
bp->dev->dev_addr);
+}
+static bool __devinit bnx2x_get_dropless_info(struct bnx2x *bp)
+{
+ int tmp;
+ u32 cfg;
+ if (IS_MF(bp) && !CHIP_IS_E1x(bp)) {
+ /* Take function: tmp = func */
+ tmp = BP_ABS_FUNC(bp);
+ cfg = MF_CFG_RD(bp, func_ext_config[tmp].func_cfg);
+ cfg = !!(cfg & MACP_FUNC_CFG_PAUSE_ON_HOST_RING);
+ } else {
+ /* Take port: tmp = port */
+ tmp = BP_PORT(bp);
+ cfg = SHMEM_RD(bp,
+ dev_info.port_hw_config[tmp].generic_features);
+ cfg = !!(cfg & PORT_HW_CFG_PAUSE_ON_HOST_RING_ENABLED);
+ }
+ return cfg;
}
static int __devinit bnx2x_get_hwinfo(struct bnx2x *bp)
@@ -11063,7 +11081,7 @@ static int __devinit bnx2x_init_bp(struct bnx2x *bp)
if (CHIP_IS_E1(bp))
bp->dropless_fc = 0;
else
- bp->dropless_fc = dropless_fc;
+ bp->dropless_fc = dropless_fc | bnx2x_get_dropless_info(bp);
bp->mrrs = mrrs;
--
1.7.1
next prev parent reply other threads:[~2012-12-02 14:05 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-02 14:05 [PATCH net-next 00/13] bnx2x: net-next patch series Yuval Mintz
2012-12-02 14:05 ` [PATCH net-next 01/13] bnx2x: revised and corrected SPIO access Yuval Mintz
2012-12-02 14:05 ` [PATCH net-next 02/13] bnx2x: parity recovery flow enhancement Yuval Mintz
2012-12-02 14:05 ` [PATCH net-next 03/13] bnx2x: Management can control PFC/ETS Yuval Mintz
2012-12-02 14:05 ` [PATCH net-next 04/13] bnx2x: Filter packets on FCoE rings Yuval Mintz
2012-12-02 14:05 ` [PATCH net-next 05/13] bnx2x: Correct advertised speed/duplex Yuval Mintz
2012-12-02 14:05 ` Yuval Mintz [this message]
2012-12-02 14:05 ` [PATCH net-next 07/13] bnx2x: Ext. config accessed only on non-E1x Yuval Mintz
2012-12-02 14:05 ` [PATCH net-next 08/13] bnx2x: IGU parse error cause probe failure Yuval Mintz
2012-12-02 14:05 ` [PATCH net-next 09/13] bnx2x: mask CPL_OF interrupt Yuval Mintz
2012-12-02 14:05 ` [PATCH net-next 10/13] bnx2x: Handle a rarely missed interrupt Yuval Mintz
2012-12-02 14:05 ` [PATCH net-next 11/13] bnx2x: prevent DCB if disabled in nvram Yuval Mintz
2012-12-02 14:05 ` [PATCH net-next 12/13] bnx2x: fix 'Ethtool -A' when autoneg Yuval Mintz
2012-12-02 14:05 ` [PATCH net-next 13/13] bnx2x: Correct PFC disablement Yuval Mintz
2012-12-03 1:23 ` [PATCH net-next 00/13] bnx2x: net-next patch series David Miller
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