From 7f7f53168dbee6d6a462acea666fddd18aad4f08 Mon Sep 17 00:00:00 2001 From: Andy Fleming Date: Fri, 11 Nov 2005 12:38:59 -0600 Subject: [PATCH] Gianfar update and sysfs support This seems to have gotten lost, so I'll resend. Signed-off-by: Andy Fleming * 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 --- drivers/net/gianfar.h | 69 ++++++++++++++++++++++++++++----------------------- 1 file changed, 38 insertions(+), 31 deletions(-) (limited to 'drivers/net/gianfar.h') diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h index 5065ba82cb7..94a91da84fb 100644 --- a/drivers/net/gianfar.h +++ b/drivers/net/gianfar.h @@ -90,12 +90,26 @@ extern const char gfar_driver_version[]; #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 @@ extern const char gfar_driver_version[]; #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 @@ extern const char gfar_driver_version[]; #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 @@ extern const char gfar_driver_version[]; #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 @@ extern const char gfar_driver_version[]; 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 @@ extern const char gfar_driver_version[]; #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 txbd8 }; 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 rxbd8 }; 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 @@ struct gfar_private { 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 stop_gfar(struct net_device *dev); 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 */ -- cgit v1.2.3