bnx2x: congestion management re-organization

The congestion management code has migrated into a common location, allowing all fw writes controlling mf congestion to be made in a single function in the code. This is a semantic change. Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
git-mirror · Apr 4, 2012 · b475d78 · b475d78
1 parent 7e8e02d
commit b475d78
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Showing 5 changed files with 332 additions and 164 deletions.
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -30,6 +30,10 @@
 #if defined(CONFIG_DCB)
 #define BCM_DCBNL
 #endif
+
+
+#include "bnx2x_hsi.h"
+
 #if defined(CONFIG_CNIC) || defined(CONFIG_CNIC_MODULE)
 #define BCM_CNIC 1
 #include "../cnic_if.h"
@@ -1336,8 +1340,8 @@ struct bnx2x {
 	struct bnx2x_common	common;
 	struct bnx2x_port	port;
 
-	struct cmng_struct_per_port cmng;
-	u32			vn_weight_sum;
+	struct cmng_init	cmng;
+
 	u32			mf_config[E1HVN_MAX];
 	u32			mf2_config[E2_FUNC_MAX];
 	u32			path_has_ovlan; /* E3 */

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -964,6 +964,12 @@ static inline void bnx2x_reuse_rx_data(struct bnx2x_fastpath *fp,
 
 /************************* Init ******************************************/
 
+/* returns func by VN for current port */
+static inline int func_by_vn(struct bnx2x *bp, int vn)
+{
+	return 2 * vn + BP_PORT(bp);
+}
+
 /**
  * bnx2x_func_start - init function
  *
@@ -1419,15 +1425,32 @@ static inline void storm_memset_func_cfg(struct bnx2x *bp,
 }
 
 static inline void storm_memset_cmng(struct bnx2x *bp,
-				struct cmng_struct_per_port *cmng,
+				struct cmng_init *cmng,
 				u8 port)
 {
+	int vn;
 	size_t size = sizeof(struct cmng_struct_per_port);
 
 	u32 addr = BAR_XSTRORM_INTMEM +
 			XSTORM_CMNG_PER_PORT_VARS_OFFSET(port);
 
-	__storm_memset_struct(bp, addr, size, (u32 *)cmng);
+	__storm_memset_struct(bp, addr, size, (u32 *)&cmng->port);
+
+	for (vn = VN_0; vn < BP_MAX_VN_NUM(bp); vn++) {
+		int func = func_by_vn(bp, vn);
+
+		addr = BAR_XSTRORM_INTMEM +
+		       XSTORM_RATE_SHAPING_PER_VN_VARS_OFFSET(func);
+		size = sizeof(struct rate_shaping_vars_per_vn);
+		__storm_memset_struct(bp, addr, size,
+				      (u32 *)&cmng->vnic.vnic_max_rate[vn]);
+
+		addr = BAR_XSTRORM_INTMEM +
+		       XSTORM_FAIRNESS_PER_VN_VARS_OFFSET(func);
+		size = sizeof(struct fairness_vars_per_vn);
+		__storm_memset_struct(bp, addr, size,
+				      (u32 *)&cmng->vnic.vnic_min_rate[vn]);
+	}
 }
 
 /**
@@ -1608,11 +1631,6 @@ static inline void bnx2x_bz_fp(struct bnx2x *bp, int index)
  */
 void bnx2x_get_iscsi_info(struct bnx2x *bp);
 #endif
-/* returns func by VN for current port */
-static inline int func_by_vn(struct bnx2x *bp, int vn)
-{
-	return 2 * vn + BP_PORT(bp);
-}
 
 /**
  * bnx2x_link_sync_notify - send notification to other functions.

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
@@ -4448,6 +4448,65 @@ struct cmng_struct_per_port {
 	struct cmng_flags_per_port flags;
 };
 
+/*
+ * a single rate shaping counter. can be used as protocol or vnic counter
+ */
+struct rate_shaping_counter {
+	u32 quota;
+#if defined(__BIG_ENDIAN)
+	u16 __reserved0;
+	u16 rate;
+#elif defined(__LITTLE_ENDIAN)
+	u16 rate;
+	u16 __reserved0;
+#endif
+};
+
+/*
+ * per-vnic rate shaping variables
+ */
+struct rate_shaping_vars_per_vn {
+	struct rate_shaping_counter vn_counter;
+};
+
+/*
+ * per-vnic fairness variables
+ */
+struct fairness_vars_per_vn {
+	u32 cos_credit_delta[MAX_COS_NUMBER];
+	u32 vn_credit_delta;
+	u32 __reserved0;
+};
+
+/*
+ * cmng port init state
+ */
+struct cmng_vnic {
+	struct rate_shaping_vars_per_vn vnic_max_rate[4];
+	struct fairness_vars_per_vn vnic_min_rate[4];
+};
+
+/*
+ * cmng port init state
+ */
+struct cmng_init {
+	struct cmng_struct_per_port port;
+	struct cmng_vnic vnic;
+};
+
+
+/*
+ * driver parameters for congestion management init, all rates are in Mbps
+ */
+struct cmng_init_input {
+	u32 port_rate;
+	u16 vnic_min_rate[4];
+	u16 vnic_max_rate[4];
+	u16 cos_min_rate[MAX_COS_NUMBER];
+	u16 cos_to_pause_mask[MAX_COS_NUMBER];
+	struct cmng_flags_per_port flags;
+};
+
 
 /*
  * Protocol-common command ID for slow path elements
@@ -4762,16 +4821,6 @@ enum fairness_mode {
 };
 
 
-/*
- * per-vnic fairness variables
- */
-struct fairness_vars_per_vn {
-	u32 cos_credit_delta[MAX_COS_NUMBER];
-	u32 vn_credit_delta;
-	u32 __reserved0;
-};
-
-
 /*
  * Priority and cos
  */
@@ -5139,29 +5188,6 @@ struct protocol_common_spe {
 };
 
 
-/*
- * a single rate shaping counter. can be used as protocol or vnic counter
- */
-struct rate_shaping_counter {
-	u32 quota;
-#if defined(__BIG_ENDIAN)
-	u16 __reserved0;
-	u16 rate;
-#elif defined(__LITTLE_ENDIAN)
-	u16 rate;
-	u16 __reserved0;
-#endif
-};
-
-
-/*
- * per-vnic rate shaping variables
- */
-struct rate_shaping_vars_per_vn {
-	struct rate_shaping_counter vn_counter;
-};
-
-
 /*
  * The send queue element
  */