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authorJay Cliburn <jacliburn@bellsouth.net>2008-02-02 19:50:03 -0600
committerJeff Garzik <jeff@garzik.org>2008-03-17 07:49:23 -0400
commit2e5071bce5ce4037ce852a916e8106811e68677b (patch)
treee6bba6946c6e8ebe51b28a6f5b3251a5fcddbb4e /drivers/net/atlx/atl1.h
parentfa6557aff47f25e5b6b92c930a9b60a12acd0b58 (diff)
atl1: relocate atl1 driver to /drivers/net/atlx
In preparation for a future Atheros L2 NIC driver (called atl2), relocate the atl1 driver into a new /drivers/net/atlx directory that will ultimately be shared with the future atl2 driver. Signed-off-by: Chris Snook <csnook@redhat.com> Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/atlx/atl1.h')
-rw-r--r--drivers/net/atlx/atl1.h286
1 files changed, 286 insertions, 0 deletions
diff --git a/drivers/net/atlx/atl1.h b/drivers/net/atlx/atl1.h
new file mode 100644
index 00000000000..ff4765f6c3d
--- /dev/null
+++ b/drivers/net/atlx/atl1.h
@@ -0,0 +1,286 @@
+/*
+ * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
+ * Copyright(c) 2006 Chris Snook <csnook@redhat.com>
+ * Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.com>
+ *
+ * Derived from Intel e1000 driver
+ * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef _ATL1_H_
+#define _ATL1_H_
+
+#include <linux/types.h>
+#include <linux/if_vlan.h>
+
+#include "atl1_hw.h"
+
+/* function prototypes needed by multiple files */
+s32 atl1_up(struct atl1_adapter *adapter);
+void atl1_down(struct atl1_adapter *adapter);
+int atl1_reset(struct atl1_adapter *adapter);
+s32 atl1_setup_ring_resources(struct atl1_adapter *adapter);
+void atl1_free_ring_resources(struct atl1_adapter *adapter);
+
+extern char atl1_driver_name[];
+extern char atl1_driver_version[];
+extern const struct ethtool_ops atl1_ethtool_ops;
+
+struct atl1_adapter;
+
+#define ATL1_MAX_INTR 3
+#define ATL1_MAX_TX_BUF_LEN 0x3000 /* 12288 bytes */
+
+#define ATL1_DEFAULT_TPD 256
+#define ATL1_MAX_TPD 1024
+#define ATL1_MIN_TPD 64
+#define ATL1_DEFAULT_RFD 512
+#define ATL1_MIN_RFD 128
+#define ATL1_MAX_RFD 2048
+
+#define ATL1_GET_DESC(R, i, type) (&(((type *)((R)->desc))[i]))
+#define ATL1_RFD_DESC(R, i) ATL1_GET_DESC(R, i, struct rx_free_desc)
+#define ATL1_TPD_DESC(R, i) ATL1_GET_DESC(R, i, struct tx_packet_desc)
+#define ATL1_RRD_DESC(R, i) ATL1_GET_DESC(R, i, struct rx_return_desc)
+
+/*
+ * This detached comment is preserved for documentation purposes only.
+ * It was originally attached to some code that got deleted, but seems
+ * important enough to keep around...
+ *
+ * <begin detached comment>
+ * Some workarounds require millisecond delays and are run during interrupt
+ * context. Most notably, when establishing link, the phy may need tweaking
+ * but cannot process phy register reads/writes faster than millisecond
+ * intervals...and we establish link due to a "link status change" interrupt.
+ * <end detached comment>
+ */
+
+/*
+ * atl1_ring_header represents a single, contiguous block of DMA space
+ * mapped for the three descriptor rings (tpd, rfd, rrd) and the two
+ * message blocks (cmb, smb) described below
+ */
+struct atl1_ring_header {
+ void *desc; /* virtual address */
+ dma_addr_t dma; /* physical address*/
+ unsigned int size; /* length in bytes */
+};
+
+/*
+ * atl1_buffer is wrapper around a pointer to a socket buffer
+ * so a DMA handle can be stored along with the skb
+ */
+struct atl1_buffer {
+ struct sk_buff *skb; /* socket buffer */
+ u16 length; /* rx buffer length */
+ u16 alloced; /* 1 if skb allocated */
+ dma_addr_t dma;
+};
+
+/* transmit packet descriptor (tpd) ring */
+struct atl1_tpd_ring {
+ void *desc; /* descriptor ring virtual address */
+ dma_addr_t dma; /* descriptor ring physical address */
+ u16 size; /* descriptor ring length in bytes */
+ u16 count; /* number of descriptors in the ring */
+ u16 hw_idx; /* hardware index */
+ atomic_t next_to_clean;
+ atomic_t next_to_use;
+ struct atl1_buffer *buffer_info;
+};
+
+/* receive free descriptor (rfd) ring */
+struct atl1_rfd_ring {
+ void *desc; /* descriptor ring virtual address */
+ dma_addr_t dma; /* descriptor ring physical address */
+ u16 size; /* descriptor ring length in bytes */
+ u16 count; /* number of descriptors in the ring */
+ atomic_t next_to_use;
+ u16 next_to_clean;
+ struct atl1_buffer *buffer_info;
+};
+
+/* receive return descriptor (rrd) ring */
+struct atl1_rrd_ring {
+ void *desc; /* descriptor ring virtual address */
+ dma_addr_t dma; /* descriptor ring physical address */
+ unsigned int size; /* descriptor ring length in bytes */
+ u16 count; /* number of descriptors in the ring */
+ u16 next_to_use;
+ atomic_t next_to_clean;
+};
+
+/* coalescing message block (cmb) */
+struct atl1_cmb {
+ struct coals_msg_block *cmb;
+ dma_addr_t dma;
+};
+
+/* statistics message block (smb) */
+struct atl1_smb {
+ struct stats_msg_block *smb;
+ dma_addr_t dma;
+};
+
+/* Statistics counters */
+struct atl1_sft_stats {
+ u64 rx_packets;
+ u64 tx_packets;
+ u64 rx_bytes;
+ u64 tx_bytes;
+ u64 multicast;
+ u64 collisions;
+ u64 rx_errors;
+ u64 rx_length_errors;
+ u64 rx_crc_errors;
+ u64 rx_frame_errors;
+ u64 rx_fifo_errors;
+ u64 rx_missed_errors;
+ u64 tx_errors;
+ u64 tx_fifo_errors;
+ u64 tx_aborted_errors;
+ u64 tx_window_errors;
+ u64 tx_carrier_errors;
+ u64 tx_pause; /* num pause packets transmitted. */
+ u64 excecol; /* num tx packets w/ excessive collisions. */
+ u64 deffer; /* num tx packets deferred */
+ u64 scc; /* num packets subsequently transmitted
+ * successfully w/ single prior collision. */
+ u64 mcc; /* num packets subsequently transmitted
+ * successfully w/ multiple prior collisions. */
+ u64 latecol; /* num tx packets w/ late collisions. */
+ u64 tx_underun; /* num tx packets aborted due to transmit
+ * FIFO underrun, or TRD FIFO underrun */
+ u64 tx_trunc; /* num tx packets truncated due to size
+ * exceeding MTU, regardless whether truncated
+ * by the chip or not. (The name doesn't really
+ * reflect the meaning in this case.) */
+ u64 rx_pause; /* num Pause packets received. */
+ u64 rx_rrd_ov;
+ u64 rx_trunc;
+};
+
+/* hardware structure */
+struct atl1_hw {
+ u8 __iomem *hw_addr;
+ struct atl1_adapter *back;
+ enum atl1_dma_order dma_ord;
+ enum atl1_dma_rcb rcb_value;
+ enum atl1_dma_req_block dmar_block;
+ enum atl1_dma_req_block dmaw_block;
+ u8 preamble_len;
+ u8 max_retry; /* Retransmission maximum, after which the
+ * packet will be discarded */
+ u8 jam_ipg; /* IPG to start JAM for collision based flow
+ * control in half-duplex mode. In units of
+ * 8-bit time */
+ u8 ipgt; /* Desired back to back inter-packet gap.
+ * The default is 96-bit time */
+ u8 min_ifg; /* Minimum number of IFG to enforce in between
+ * receive frames. Frame gap below such IFP
+ * is dropped */
+ u8 ipgr1; /* 64bit Carrier-Sense window */
+ u8 ipgr2; /* 96-bit IPG window */
+ u8 tpd_burst; /* Number of TPD to prefetch in cache-aligned
+ * burst. Each TPD is 16 bytes long */
+ u8 rfd_burst; /* Number of RFD to prefetch in cache-aligned
+ * burst. Each RFD is 12 bytes long */
+ u8 rfd_fetch_gap;
+ u8 rrd_burst; /* Threshold number of RRDs that can be retired
+ * in a burst. Each RRD is 16 bytes long */
+ u8 tpd_fetch_th;
+ u8 tpd_fetch_gap;
+ u16 tx_jumbo_task_th;
+ u16 txf_burst; /* Number of data bytes to read in a cache-
+ * aligned burst. Each SRAM entry is 8 bytes */
+ u16 rx_jumbo_th; /* Jumbo packet size for non-VLAN packet. VLAN
+ * packets should add 4 bytes */
+ u16 rx_jumbo_lkah;
+ u16 rrd_ret_timer; /* RRD retirement timer. Decrement by 1 after
+ * every 512ns passes. */
+ u16 lcol; /* Collision Window */
+
+ u16 cmb_tpd;
+ u16 cmb_rrd;
+ u16 cmb_rx_timer;
+ u16 cmb_tx_timer;
+ u32 smb_timer;
+ u16 media_type;
+ u16 autoneg_advertised;
+
+ u16 mii_autoneg_adv_reg;
+ u16 mii_1000t_ctrl_reg;
+
+ u32 max_frame_size;
+ u32 min_frame_size;
+
+ u16 dev_rev;
+
+ /* spi flash */
+ u8 flash_vendor;
+
+ u8 mac_addr[ETH_ALEN];
+ u8 perm_mac_addr[ETH_ALEN];
+
+ bool phy_configured;
+};
+
+struct atl1_adapter {
+ struct net_device *netdev;
+ struct pci_dev *pdev;
+ struct net_device_stats net_stats;
+ struct atl1_sft_stats soft_stats;
+ struct vlan_group *vlgrp;
+ u32 rx_buffer_len;
+ u32 wol;
+ u16 link_speed;
+ u16 link_duplex;
+ spinlock_t lock;
+ struct work_struct tx_timeout_task;
+ struct work_struct link_chg_task;
+ struct work_struct pcie_dma_to_rst_task;
+ struct timer_list watchdog_timer;
+ struct timer_list phy_config_timer;
+ bool phy_timer_pending;
+
+ /* all descriptor rings' memory */
+ struct atl1_ring_header ring_header;
+
+ /* TX */
+ struct atl1_tpd_ring tpd_ring;
+ spinlock_t mb_lock;
+
+ /* RX */
+ struct atl1_rfd_ring rfd_ring;
+ struct atl1_rrd_ring rrd_ring;
+ u64 hw_csum_err;
+ u64 hw_csum_good;
+
+ u16 imt; /* interrupt moderator timer (2us resolution */
+ u16 ict; /* interrupt clear timer (2us resolution */
+ struct mii_if_info mii; /* MII interface info */
+
+ /* structs defined in atl1_hw.h */
+ u32 bd_number; /* board number */
+ bool pci_using_64;
+ struct atl1_hw hw;
+ struct atl1_smb smb;
+ struct atl1_cmb cmb;
+};
+
+#endif /* _ATL1_H_ */