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Message-ID: <1298313481.24633.15.camel@lb-tlvb-shmulik.il.broadcom.com>
Date: Mon, 21 Feb 2011 20:38:01 +0200
From: "Shmulik Ravid" <shmulikr@...adcom.com>
To: davem@...emloft.net
cc: eilong@...adcom.com, netdev@...r.kernel.org
Subject: [PATCH net-next] bnx2x: use dcb_setapp to manage negotiated
application tlvs
With this patch the bnx2x uses the generic dcbnl application tlv list
instead of implementing its own get-app handler. When the driver is
alerted to a change in the DCB negotiated parameters, it calls
dcb_setapp to update the dcbnl application tlvs list making it available
to user mode applications and registered notifiers.
Signed-off-by: Shmulik Ravid <shmulikr@...adcom.com>
Signed-off-by: Eilon Greenstein <eilong@...adcom.com>
---
drivers/net/bnx2x/bnx2x.h | 2 +-
drivers/net/bnx2x/bnx2x_dcb.c | 137 ++++++++++++++++++++++++----------------
drivers/net/bnx2x/bnx2x_dcb.h | 5 +-
drivers/net/bnx2x/bnx2x_main.c | 7 ++-
4 files changed, 92 insertions(+), 59 deletions(-)
diff --git a/drivers/net/bnx2x/bnx2x.h b/drivers/net/bnx2x/bnx2x.h
index c0dd30d..1914026 100644
--- a/drivers/net/bnx2x/bnx2x.h
+++ b/drivers/net/bnx2x/bnx2x.h
@@ -31,7 +31,7 @@
#define BNX2X_NEW_NAPI
#if defined(CONFIG_DCB)
-#define BCM_DCB
+#define BCM_DCBNL
#endif
#if defined(CONFIG_CNIC) || defined(CONFIG_CNIC_MODULE)
#define BCM_CNIC 1
diff --git a/drivers/net/bnx2x/bnx2x_dcb.c b/drivers/net/bnx2x/bnx2x_dcb.c
index fb60021..9a24d79 100644
--- a/drivers/net/bnx2x/bnx2x_dcb.c
+++ b/drivers/net/bnx2x/bnx2x_dcb.c
@@ -19,6 +19,9 @@
#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/errno.h>
+#ifdef BCM_DCBNL
+#include <linux/dcbnl.h>
+#endif
#include "bnx2x.h"
#include "bnx2x_cmn.h"
@@ -508,13 +511,75 @@ static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
return 0;
}
+
+#ifdef BCM_DCBNL
+static inline
+u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
+{
+ u8 pri;
+
+ /* Choose the highest priority */
+ for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--)
+ if (ent->pri_bitmap & (1 << pri))
+ break;
+ return pri;
+}
+
+static inline
+u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent)
+{
+ return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) ==
+ DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM :
+ DCB_APP_IDTYPE_ETHTYPE;
+}
+
+static inline
+void bnx2x_dcbx_invalidate_local_apps(struct bnx2x *bp)
+{
+ int i;
+ for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
+ bp->dcbx_local_feat.app.app_pri_tbl[i].appBitfield &=
+ ~DCBX_APP_ENTRY_VALID;
+}
+
+int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall)
+{
+ int i, err = 0;
+
+ for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) {
+ struct dcbx_app_priority_entry *ent =
+ &bp->dcbx_local_feat.app.app_pri_tbl[i];
+
+ if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
+ u8 up = bnx2x_dcbx_dcbnl_app_up(ent);
+
+ /* avoid invalid user-priority */
+ if (up) {
+ struct dcb_app app;
+ app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
+ app.protocol = ent->app_id;
+ app.priority = delall ? 0 : up;
+ err = dcb_setapp(bp->dev, &app);
+ }
+ }
+ }
+ return err;
+}
+#endif
+
void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
{
switch (state) {
case BNX2X_DCBX_STATE_NEG_RECEIVED:
{
DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
-
+#ifdef BCM_DCBNL
+ /**
+ * Delete app tlvs from dcbnl before reading new
+ * negotiation results
+ */
+ bnx2x_dcbnl_update_applist(bp, true);
+#endif
/* Read neg results if dcbx is in the FW */
if (bnx2x_dcbx_read_shmem_neg_results(bp))
return;
@@ -526,10 +591,24 @@ void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
bp->dcbx_error);
if (bp->state != BNX2X_STATE_OPENING_WAIT4_LOAD) {
+#ifdef BCM_DCBNL
+ /**
+ * Add new app tlvs to dcbnl
+ */
+ bnx2x_dcbnl_update_applist(bp, false);
+#endif
bnx2x_dcbx_stop_hw_tx(bp);
return;
}
/* fall through */
+#ifdef BCM_DCBNL
+ /**
+ * Invalidate the local app tlvs if they are not added
+ * to the dcbnl app list to avoid deleting them from
+ * the list later on
+ */
+ bnx2x_dcbx_invalidate_local_apps(bp);
+#endif
}
case BNX2X_DCBX_STATE_TX_PAUSED:
DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_PAUSED\n");
@@ -1505,8 +1584,7 @@ static void bnx2x_pfc_fw_struct_e2(struct bnx2x *bp)
bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg);
}
/* DCB netlink */
-#ifdef BCM_DCB
-#include <linux/dcbnl.h>
+#ifdef BCM_DCBNL
#define BNX2X_DCBX_CAPS (DCB_CAP_DCBX_LLD_MANAGED | \
DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC)
@@ -1816,32 +1894,6 @@ static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state)
bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0);
}
-static bool bnx2x_app_is_equal(struct dcbx_app_priority_entry *app_ent,
- u8 idtype, u16 idval)
-{
- if (!(app_ent->appBitfield & DCBX_APP_ENTRY_VALID))
- return false;
-
- switch (idtype) {
- case DCB_APP_IDTYPE_ETHTYPE:
- if ((app_ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) !=
- DCBX_APP_SF_ETH_TYPE)
- return false;
- break;
- case DCB_APP_IDTYPE_PORTNUM:
- if ((app_ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) !=
- DCBX_APP_SF_PORT)
- return false;
- break;
- default:
- return false;
- }
- if (app_ent->app_id != idval)
- return false;
-
- return true;
-}
-
static void bnx2x_admin_app_set_ent(
struct bnx2x_admin_priority_app_table *app_ent,
u8 idtype, u16 idval, u8 up)
@@ -1943,30 +1995,6 @@ static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
return bnx2x_set_admin_app_up(bp, idtype, idval, up);
}
-static u8 bnx2x_dcbnl_get_app_up(struct net_device *netdev, u8 idtype,
- u16 idval)
-{
- int i;
- u8 up = 0;
-
- struct bnx2x *bp = netdev_priv(netdev);
- DP(NETIF_MSG_LINK, "app_type %d, app_id 0x%x\n", idtype, idval);
-
- /* iterate over the app entries looking for idtype and idval */
- for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
- if (bnx2x_app_is_equal(&bp->dcbx_local_feat.app.app_pri_tbl[i],
- idtype, idval))
- break;
-
- if (i < DCBX_MAX_APP_PROTOCOL)
- /* if found return up */
- up = bp->dcbx_local_feat.app.app_pri_tbl[i].pri_bitmap;
- else
- DP(NETIF_MSG_LINK, "app not found\n");
-
- return up;
-}
-
static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev)
{
struct bnx2x *bp = netdev_priv(netdev);
@@ -2107,7 +2135,6 @@ const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = {
.setnumtcs = bnx2x_dcbnl_set_numtcs,
.getpfcstate = bnx2x_dcbnl_get_pfc_state,
.setpfcstate = bnx2x_dcbnl_set_pfc_state,
- .getapp = bnx2x_dcbnl_get_app_up,
.setapp = bnx2x_dcbnl_set_app_up,
.getdcbx = bnx2x_dcbnl_get_dcbx,
.setdcbx = bnx2x_dcbnl_set_dcbx,
@@ -2115,4 +2142,4 @@ const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = {
.setfeatcfg = bnx2x_dcbnl_set_featcfg,
};
-#endif /* BCM_DCB */
+#endif /* BCM_DCBNL */
diff --git a/drivers/net/bnx2x/bnx2x_dcb.h b/drivers/net/bnx2x/bnx2x_dcb.h
index f650f98..71b8eda 100644
--- a/drivers/net/bnx2x/bnx2x_dcb.h
+++ b/drivers/net/bnx2x/bnx2x_dcb.h
@@ -189,8 +189,9 @@ enum {
void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state);
/* DCB netlink */
-#ifdef BCM_DCB
+#ifdef BCM_DCBNL
extern const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops;
-#endif /* BCM_DCB */
+int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall);
+#endif /* BCM_DCBNL */
#endif /* BNX2X_DCB_H */
diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c
index 6c7745e..061733e 100644
--- a/drivers/net/bnx2x/bnx2x_main.c
+++ b/drivers/net/bnx2x/bnx2x_main.c
@@ -9441,7 +9441,7 @@ static int __devinit bnx2x_init_dev(struct pci_dev *pdev,
dev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO_ECN);
dev->vlan_features |= NETIF_F_TSO6;
-#ifdef BCM_DCB
+#ifdef BCM_DCBNL
dev->dcbnl_ops = &bnx2x_dcbnl_ops;
#endif
@@ -9848,6 +9848,11 @@ static void __devexit bnx2x_remove_one(struct pci_dev *pdev)
}
#endif
+#ifdef BCM_DCBNL
+ /* Delete app tlvs from dcbnl */
+ bnx2x_dcbnl_update_applist(bp, true);
+#endif
+
unregister_netdev(dev);
/* Delete all NAPI objects */
--
1.7.3.5
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