gianfar: Basic Support for programming hash rules

This patch provides basic hash rules programming via the ethtool
interface.

Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 93 insertions, 0 deletions

diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h
index a2c1f963cdd6..44b63daa7ff3 100644
--- a/drivers/net/gianfar.h
+++ b/drivers/net/gianfar.h
@@ -381,6 +381,84 @@ extern const char gfar_driver_version[];
 #define BD_LFLAG(flags) ((flags) << 16)
 #define BD_LENGTH_MASK          0x0000ffff
 
+#define CLASS_CODE_UNRECOG              0x00
+#define CLASS_CODE_DUMMY1               0x01
+#define CLASS_CODE_ETHERTYPE1           0x02
+#define CLASS_CODE_ETHERTYPE2           0x03
+#define CLASS_CODE_USER_PROG1           0x04
+#define CLASS_CODE_USER_PROG2           0x05
+#define CLASS_CODE_USER_PROG3           0x06
+#define CLASS_CODE_USER_PROG4           0x07
+#define CLASS_CODE_TCP_IPV4             0x08
+#define CLASS_CODE_UDP_IPV4             0x09
+#define CLASS_CODE_AH_ESP_IPV4          0x0a
+#define CLASS_CODE_SCTP_IPV4            0x0b
+#define CLASS_CODE_TCP_IPV6             0x0c
+#define CLASS_CODE_UDP_IPV6             0x0d
+#define CLASS_CODE_AH_ESP_IPV6          0x0e
+#define CLASS_CODE_SCTP_IPV6            0x0f
+
+#define FPR_FILER_MASK  0xFFFFFFFF
+#define MAX_FILER_IDX   0xFF
+
+/* RQFCR register bits */
+#define RQFCR_GPI               0x80000000
+#define RQFCR_HASHTBL_Q         0x00000000
+#define RQFCR_HASHTBL_0         0x00020000
+#define RQFCR_HASHTBL_1         0x00040000
+#define RQFCR_HASHTBL_2         0x00060000
+#define RQFCR_HASHTBL_3         0x00080000
+#define RQFCR_HASH              0x00010000
+#define RQFCR_CLE               0x00000200
+#define RQFCR_RJE               0x00000100
+#define RQFCR_AND               0x00000080
+#define RQFCR_CMP_EXACT         0x00000000
+#define RQFCR_CMP_MATCH         0x00000020
+#define RQFCR_CMP_NOEXACT       0x00000040
+#define RQFCR_CMP_NOMATCH       0x00000060
+
+/* RQFCR PID values */
+#define RQFCR_PID_MASK          0x00000000
+#define RQFCR_PID_PARSE         0x00000001
+#define RQFCR_PID_ARB           0x00000002
+#define RQFCR_PID_DAH           0x00000003
+#define RQFCR_PID_DAL           0x00000004
+#define RQFCR_PID_SAH           0x00000005
+#define RQFCR_PID_SAL           0x00000006
+#define RQFCR_PID_ETY           0x00000007
+#define RQFCR_PID_VID           0x00000008
+#define RQFCR_PID_PRI           0x00000009
+#define RQFCR_PID_TOS           0x0000000A
+#define RQFCR_PID_L4P           0x0000000B
+#define RQFCR_PID_DIA           0x0000000C
+#define RQFCR_PID_SIA           0x0000000D
+#define RQFCR_PID_DPT           0x0000000E
+#define RQFCR_PID_SPT           0x0000000F
+
+/* RQFPR when PID is 0x0001 */
+#define RQFPR_HDR_GE_512        0x00200000
+#define RQFPR_LERR              0x00100000
+#define RQFPR_RAR               0x00080000
+#define RQFPR_RARQ              0x00040000
+#define RQFPR_AR                0x00020000
+#define RQFPR_ARQ               0x00010000
+#define RQFPR_EBC               0x00008000
+#define RQFPR_VLN               0x00004000
+#define RQFPR_CFI               0x00002000
+#define RQFPR_JUM               0x00001000
+#define RQFPR_IPF               0x00000800
+#define RQFPR_FIF               0x00000400
+#define RQFPR_IPV4              0x00000200
+#define RQFPR_IPV6              0x00000100
+#define RQFPR_ICC               0x00000080
+#define RQFPR_ICV               0x00000040
+#define RQFPR_TCP               0x00000020
+#define RQFPR_UDP               0x00000010
+#define RQFPR_TUC               0x00000008
+#define RQFPR_TUV               0x00000004
+#define RQFPR_PER               0x00000002
+#define RQFPR_EER               0x00000001
+
 /* TxBD status field bits */
 #define TXBD_READY              0x8000
 #define TXBD_PADCRC             0x4000
@@ -959,6 +1037,8 @@ struct gfar_private {
         unsigned int rx_stash_size;
         unsigned int rx_stash_index;
 
+        u32 cur_filer_idx;
+
         struct sk_buff_head rx_recycle;
 
         struct vlan_group *vlgrp;
@@ -1002,6 +1082,9 @@ struct gfar_private {
         struct gfar_extra_stats extra_stats;
 };
 
+extern unsigned int ftp_rqfpr[MAX_FILER_IDX + 1];
+extern unsigned int ftp_rqfcr[MAX_FILER_IDX + 1];
+
 static inline u32 gfar_read(volatile unsigned __iomem *addr)
 {
         u32 val;
@@ -1014,6 +1097,16 @@ static inline void gfar_write(volatile unsigned __iomem *addr, u32 val)
         out_be32(addr, val);
 }
 
+static inline void gfar_write_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);
+        gfar_write(&regs->rqfcr, fcr);
+        gfar_write(&regs->rqfpr, fpr);
+}
+
 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);