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gianfar v5: implement nfc

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This patch adds all missing functionalities for nfc except GRXFH. There is so much code because hardware has not a TCAM.
Further hardware rule space is very limited. So I had to extensively use
optimization features. Both reasons lead to the necessity to hold all
online flows in a linked-list.

Change-log:
# Some suggestions by Joe Perches applied (thanks!)
# Shorted some logs
# Use memcmp() for comparing

Signed-off-by: Sebastian Poehn <sebastian.poehn@belden.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sebastian Poehn
2011-06-20 13:57:59 -07:00
committed by David S. Miller
parent d13d6bffb4
commit 4aa3a71555
3 changed files with 989 additions and 4 deletions
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53
drivers/net/gianfar.h
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@@ -47,6 +47,16 @@
#include <linux/workqueue.h>
#include <linux/ethtool.h>
struct ethtool_flow_spec_container {
struct ethtool_rx_flow_spec fs;
struct list_head list;
};
struct ethtool_rx_list {
struct list_head list;
unsigned int count;
};
/* The maximum number of packets to be handled in one call of gfar_poll */
#define GFAR_DEV_WEIGHT 64
@@ -168,6 +178,7 @@ 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 +282,7 @@ 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 | \
@@ -1066,6 +1078,9 @@ struct gfar_private {
struct vlan_group *vlgrp;
/* RX queue filer rule set*/
struct ethtool_rx_list rx_list;
struct mutex rx_queue_access;
/* Hash registers and their width */
u32 __iomem *hash_regs[16];
@@ -1140,6 +1155,16 @@ static inline void gfar_write_filer(struct gfar_private *priv,
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 +1182,32 @@ int gfar_set_features(struct net_device *dev, u32 features);
extern const struct ethtool_ops gfar_ethtool_ops;
#define MAX_FILER_CACHE_IDX (2*(MAX_FILER_IDX))
#define RQFCR_PID_PRI_MASK 0xFFFFFFF8
#define RQFCR_PID_L4P_MASK 0xFFFFFF00
#define RQFCR_PID_VID_MASK 0xFFFFF000
#define RQFCR_PID_PORT_MASK 0xFFFF0000
#define RQFCR_PID_MAC_MASK 0xFF000000
struct gfar_mask_entry {
unsigned int mask; /* The mask value which is valid form start to end */
unsigned int start;
unsigned int end;
unsigned int block; /* Same block values indicate depended entries */
};
/* Represents a receive filer table entry */
struct gfar_filer_entry {
u32 ctrl;
u32 prop;
};
/* The 20 additional entries are a shadow for one extra element */
struct filer_table {
u32 index;
struct gfar_filer_entry fe[MAX_FILER_CACHE_IDX + 20];
};
#endif /* __GIANFAR_H */