[PATCH] Gianfar update and sysfs support
This seems to have gotten lost, so I'll resend.
Signed-off-by: Andy Fleming <afleming@freescale.com>
* Added sysfs support to gianfar for modifying FIFO and stashing parameters
* Updated driver to support 10 Mbit, full duplex operation
* Improved comments throughout
* Cleaned up and optimized offloading code
* Fixed a bug where rx buffers were being improperly mapped and unmapped
* (only manifested if cache-coherency was off)
* Added support for using the eTSEC exact-match MAC registers
* Bumped the version to 1.3
* Added support for distinguishing between reduced 100 and 10 Mbit modes
* Modified default coalescing values to lower latency
* Added documentation
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h
index 5065ba8..94a91da 100644
--- a/drivers/net/gianfar.h
+++ b/drivers/net/gianfar.h
@@ -90,12 +90,26 @@
#define GFAR_RX_MAX_RING_SIZE 256
#define GFAR_TX_MAX_RING_SIZE 256
+#define GFAR_MAX_FIFO_THRESHOLD 511
+#define GFAR_MAX_FIFO_STARVE 511
+#define GFAR_MAX_FIFO_STARVE_OFF 511
+
#define DEFAULT_RX_BUFFER_SIZE 1536
#define TX_RING_MOD_MASK(size) (size-1)
#define RX_RING_MOD_MASK(size) (size-1)
#define JUMBO_BUFFER_SIZE 9728
#define JUMBO_FRAME_SIZE 9600
+#define DEFAULT_FIFO_TX_THR 0x100
+#define DEFAULT_FIFO_TX_STARVE 0x40
+#define DEFAULT_FIFO_TX_STARVE_OFF 0x80
+#define DEFAULT_BD_STASH 1
+#define DEFAULT_STASH_LENGTH 64
+#define DEFAULT_STASH_INDEX 0
+
+/* The number of Exact Match registers */
+#define GFAR_EM_NUM 15
+
/* Latency of interface clock in nanoseconds */
/* Interface clock latency , in this case, means the
* time described by a value of 1 in the interrupt
@@ -112,11 +126,11 @@
#define DEFAULT_TX_COALESCE 1
#define DEFAULT_TXCOUNT 16
-#define DEFAULT_TXTIME 400
+#define DEFAULT_TXTIME 4
#define DEFAULT_RX_COALESCE 1
#define DEFAULT_RXCOUNT 16
-#define DEFAULT_RXTIME 400
+#define DEFAULT_RXTIME 4
#define TBIPA_VALUE 0x1f
#define MIIMCFG_INIT_VALUE 0x00000007
@@ -147,6 +161,7 @@
#define ECNTRL_INIT_SETTINGS 0x00001000
#define ECNTRL_TBI_MODE 0x00000020
+#define ECNTRL_R100 0x00000008
#define MRBLR_INIT_SETTINGS DEFAULT_RX_BUFFER_SIZE
@@ -181,10 +196,12 @@
#define RCTRL_PRSDEP_MASK 0x000000c0
#define RCTRL_PRSDEP_INIT 0x000000c0
#define RCTRL_PROM 0x00000008
+#define RCTRL_EMEN 0x00000002
#define RCTRL_CHECKSUMMING (RCTRL_IPCSEN \
| RCTRL_TUCSEN | RCTRL_PRSDEP_INIT)
#define RCTRL_EXTHASH (RCTRL_GHTX)
#define RCTRL_VLAN (RCTRL_PRSDEP_INIT)
+#define RCTRL_PADDING(x) ((x << 16) & RCTRL_PAL_MASK)
#define RSTAT_CLEAR_RHALT 0x00800000
@@ -251,28 +268,26 @@
IMASK_XFUN | IMASK_RXC | IMASK_BABT | IMASK_DPE \
| IMASK_PERR)
+/* Fifo management */
+#define FIFO_TX_THR_MASK 0x01ff
+#define FIFO_TX_STARVE_MASK 0x01ff
+#define FIFO_TX_STARVE_OFF_MASK 0x01ff
/* Attribute fields */
/* This enables rx snooping for buffers and descriptors */
-#ifdef CONFIG_GFAR_BDSTASH
#define ATTR_BDSTASH 0x00000800
-#else
-#define ATTR_BDSTASH 0x00000000
-#endif
-#ifdef CONFIG_GFAR_BUFSTASH
#define ATTR_BUFSTASH 0x00004000
-#define STASH_LENGTH 64
-#else
-#define ATTR_BUFSTASH 0x00000000
-#endif
#define ATTR_SNOOPING 0x000000c0
-#define ATTR_INIT_SETTINGS (ATTR_SNOOPING \
- | ATTR_BDSTASH | ATTR_BUFSTASH)
+#define ATTR_INIT_SETTINGS ATTR_SNOOPING
#define ATTRELI_INIT_SETTINGS 0x0
+#define ATTRELI_EL_MASK 0x3fff0000
+#define ATTRELI_EL(x) (x << 16)
+#define ATTRELI_EI_MASK 0x00003fff
+#define ATTRELI_EI(x) (x)
/* TxBD status field bits */
@@ -328,6 +343,7 @@
#define RXFCB_CTU 0x0400
#define RXFCB_EIP 0x0200
#define RXFCB_ETU 0x0100
+#define RXFCB_CSUM_MASK 0x0f00
#define RXFCB_PERR_MASK 0x000c
#define RXFCB_PERR_BADL3 0x0008
@@ -339,14 +355,7 @@
};
struct txfcb {
- u8 vln:1,
- ip:1,
- ip6:1,
- tup:1,
- udp:1,
- cip:1,
- ctu:1,
- nph:1;
+ u8 flags;
u8 reserved;
u8 l4os; /* Level 4 Header Offset */
u8 l3os; /* Level 3 Header Offset */
@@ -362,14 +371,7 @@
};
struct rxfcb {
- u16 vln:1,
- ip:1,
- ip6:1,
- tup:1,
- cip:1,
- ctu:1,
- eip:1,
- etu:1;
+ u16 flags;
u8 rq; /* Receive Queue index */
u8 pro; /* Layer 4 Protocol */
u16 reserved;
@@ -688,12 +690,17 @@
spinlock_t lock;
unsigned int rx_buffer_size;
unsigned int rx_stash_size;
+ unsigned int rx_stash_index;
unsigned int tx_ring_size;
unsigned int rx_ring_size;
+ unsigned int fifo_threshold;
+ unsigned int fifo_starve;
+ unsigned int fifo_starve_off;
unsigned char vlan_enable:1,
rx_csum_enable:1,
- extended_hash:1;
+ extended_hash:1,
+ bd_stash_en:1;
unsigned short padding;
struct vlan_group *vlgrp;
/* Info structure initialized by board setup code */
@@ -731,6 +738,6 @@
extern void gfar_halt(struct net_device *dev);
extern void gfar_phy_test(struct mii_bus *bus, struct phy_device *phydev,
int enable, u32 regnum, u32 read);
-void gfar_setup_stashing(struct net_device *dev);
+void gfar_init_sysfs(struct net_device *dev);
#endif /* __GIANFAR_H */