netdev - [PATCH 1/3] RFC gianfar: add rx

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Message-ID: <OF8DC44D74.14E3752A-ON8525788C.0046D726-8525788C.0046D72B@BeldenCDT.com>
Date:	Tue, 10 May 2011 08:53:46 -0400
From:	Sebastian.Poehn@...den.com
To:	"netdev" <netdev@...r.kernel.org>
Subject: [PATCH 1/3] RFC gianfar: add rx_ntuple feature

Patches created against net-next-2.6!

This  series implements the set_rx_ntuple feature for ethtool. Code is well  tested and should be stable. Some code rework and better integration  into gianfar_ethtool.c have to been done! Note that all rx flow hashing  stuff on hardware will be overwritten!

This part extends some hardware bit-flags and adds some data structures for ntuple conversion and storage.

--- gianfar.h.orig    2011-05-10 11:26:43.113744000 +0200
+++ gianfar.h    2011-05-10 12:59:15.301744599 +0200
@@ -168,6 +168,7 @@ extern const char gfar_driver_version[];
 #define MACCFG2_LENGTHCHECK    0x00000010
 #define MACCFG2_MPEN        0x00000008
 
+#define ECNTRL_FIFM        0x00008000
 #define ECNTRL_INIT_SETTINGS    0x00001000
 #define ECNTRL_TBI_MODE         0x00000020
 #define ECNTRL_REDUCED_MODE    0x00000010
@@ -271,6 +272,7 @@ extern const char gfar_driver_version[];
 #define RCTRL_TUCSEN        0x00000100
 #define RCTRL_PRSDEP_MASK    0x000000c0
 #define RCTRL_PRSDEP_INIT    0x000000c0
+#define RCTRL_PRSFM        0x00000020
 #define RCTRL_PROM        0x00000008
 #define RCTRL_EMEN        0x00000002
 #define RCTRL_REQ_PARSER    (RCTRL_VLEX | RCTRL_IPCSEN | \
@@ -870,6 +872,7 @@ struct gfar {
 #define FSL_GIANFAR_DEV_HAS_BD_STASHING        0x00000200
 #define FSL_GIANFAR_DEV_HAS_BUF_STASHING    0x00000400
 #define FSL_GIANFAR_DEV_HAS_TIMER        0x00000800
+#define FSL_GIANFAR_DEV_HAS_RX_FILER        0x00001000
 
 #if (MAXGROUPS == 2)
 #define DEFAULT_MAPPING     0xAA
@@ -1140,6 +1143,16 @@ static inline void gfar_write_filer(stru
     gfar_write(&regs->rqfpr, fpr);
 }
 
+static inline void gfar_read_filer(struct gfar_private *priv,
+        unsigned int far, unsigned int *fcr, unsigned int *fpr)
+{
+    struct gfar __iomem *regs = priv->gfargrp[0].regs;
+
+    gfar_write(&regs->rqfar, far);
+    *fcr = gfar_read(&regs->rqfcr);
+    *fpr = gfar_read(&regs->rqfpr);
+}
+
 extern void lock_rx_qs(struct gfar_private *priv);
 extern void lock_tx_qs(struct gfar_private *priv);
 extern void unlock_rx_qs(struct gfar_private *priv);
@@ -1157,4 +1170,39 @@ int gfar_set_features(struct net_device 
 
 extern const struct ethtool_ops gfar_ethtool_ops;
 
+#define ESWFULL 160
+#define EHWFULL 161
+#define EOUTOFRANGE 162
+#define PRINT_MAX 100
+#define MAX_FILER_CACHE_IDX (2*(MAX_FILER_IDX))
+
+extern struct interf *queue;
+
+struct and_entry {
+    unsigned int mask; /*The mask value which is valid for a block with*/
+    unsigned int start; /*start*/
+    unsigned int end; /*till end*/
+    unsigned int block; /*Same block values indicate depended entries*/
+};
+
+/*For exactly one device*/
+struct interf {
+    struct ethtool_rx_ntuple_list ntuple_list;
+    char name[IFNAMSIZ]; /*Name from struct net_device*/
+};
+
+/*Table which represents a receive filer table entry */
+struct filer_entry {
+    u32 ctrl; /*The control field from HW*/
+    u32 prop; /*The property field from HW*/
+};
+
+/*Full table*/
+struct filer_table {
+    struct filer_entry fe[MAX_FILER_CACHE_IDX];
+};
+
+int do_action(struct ethtool_rx_ntuple_flow_spec *flow, struct gfar_private *p);
+
+
 #endif /* __GIANFAR_H */
 
Signed-off-by: Sebastian Poehn <sebastian.poehn@...den.com>
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