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authorLinus Torvalds <torvalds@linux-foundation.org>2011-10-25 13:25:22 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2011-10-25 13:25:22 +0200
commit8a9ea3237e7eb5c25f09e429ad242ae5a3d5ea22 (patch)
treea0a63398a9983667d52cbbbf4e2405b4f22b1d83 /drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
parent1be025d3cb40cd295123af2c394f7229ef9b30ca (diff)
parent8b3408f8ee994973869d8ba32c5bf482bc4ddca4 (diff)
downloadlinux-linaro-stable-8a9ea3237e7eb5c25f09e429ad242ae5a3d5ea22.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1745 commits) dp83640: free packet queues on remove dp83640: use proper function to free transmit time stamping packets ipv6: Do not use routes from locally generated RAs |PATCH net-next] tg3: add tx_dropped counter be2net: don't create multiple RX/TX rings in multi channel mode be2net: don't create multiple TXQs in BE2 be2net: refactor VF setup/teardown code into be_vf_setup/clear() be2net: add vlan/rx-mode/flow-control config to be_setup() net_sched: cls_flow: use skb_header_pointer() ipv4: avoid useless call of the function check_peer_pmtu TCP: remove TCP_DEBUG net: Fix driver name for mdio-gpio.c ipv4: tcp: fix TOS value in ACK messages sent from TIME_WAIT rtnetlink: Add missing manual netlink notification in dev_change_net_namespaces ipv4: fix ipsec forward performance regression jme: fix irq storm after suspend/resume route: fix ICMP redirect validation net: hold sock reference while processing tx timestamps tcp: md5: add more const attributes Add ethtool -g support to virtio_net ... Fix up conflicts in: - drivers/net/Kconfig: The split-up generated a trivial conflict with removal of a stale reference to Documentation/networking/net-modules.txt. Remove it from the new location instead. - fs/sysfs/dir.c: Fairly nasty conflicts with the sysfs rb-tree usage, conflicting with Eric Biederman's changes for tagged directories.
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbevf/ixgbevf.h')
-rw-r--r--drivers/net/ethernet/intel/ixgbevf/ixgbevf.h320
1 files changed, 320 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
new file mode 100644
index 000000000000..e6c9d1a927a9
--- /dev/null
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
@@ -0,0 +1,320 @@
+/*******************************************************************************
+
+ Intel 82599 Virtual Function driver
+ Copyright(c) 1999 - 2010 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope 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.,
+ 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information:
+ e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#ifndef _IXGBEVF_H_
+#define _IXGBEVF_H_
+
+#include <linux/types.h>
+#include <linux/bitops.h>
+#include <linux/timer.h>
+#include <linux/io.h>
+#include <linux/netdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/u64_stats_sync.h>
+
+#include "vf.h"
+
+/* wrapper around a pointer to a socket buffer,
+ * so a DMA handle can be stored along with the buffer */
+struct ixgbevf_tx_buffer {
+ struct sk_buff *skb;
+ dma_addr_t dma;
+ unsigned long time_stamp;
+ u16 length;
+ u16 next_to_watch;
+ u16 mapped_as_page;
+};
+
+struct ixgbevf_rx_buffer {
+ struct sk_buff *skb;
+ dma_addr_t dma;
+ struct page *page;
+ dma_addr_t page_dma;
+ unsigned int page_offset;
+};
+
+struct ixgbevf_ring {
+ struct ixgbevf_adapter *adapter; /* backlink */
+ void *desc; /* descriptor ring memory */
+ dma_addr_t dma; /* phys. address of descriptor ring */
+ unsigned int size; /* length in bytes */
+ unsigned int count; /* amount of descriptors */
+ unsigned int next_to_use;
+ unsigned int next_to_clean;
+
+ int queue_index; /* needed for multiqueue queue management */
+ union {
+ struct ixgbevf_tx_buffer *tx_buffer_info;
+ struct ixgbevf_rx_buffer *rx_buffer_info;
+ };
+
+ u64 total_bytes;
+ u64 total_packets;
+ struct u64_stats_sync syncp;
+
+ u16 head;
+ u16 tail;
+
+ u16 reg_idx; /* holds the special value that gets the hardware register
+ * offset associated with this ring, which is different
+ * for DCB and RSS modes */
+
+#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+ /* cpu for tx queue */
+ int cpu;
+#endif
+
+ u64 v_idx; /* maps directly to the index for this ring in the hardware
+ * vector array, can also be used for finding the bit in EICR
+ * and friends that represents the vector for this ring */
+
+ u16 work_limit; /* max work per interrupt */
+ u16 rx_buf_len;
+};
+
+enum ixgbevf_ring_f_enum {
+ RING_F_NONE = 0,
+ RING_F_ARRAY_SIZE /* must be last in enum set */
+};
+
+struct ixgbevf_ring_feature {
+ int indices;
+ int mask;
+};
+
+/* How many Rx Buffers do we bundle into one write to the hardware ? */
+#define IXGBEVF_RX_BUFFER_WRITE 16 /* Must be power of 2 */
+
+#define MAX_RX_QUEUES 1
+#define MAX_TX_QUEUES 1
+
+#define IXGBEVF_DEFAULT_TXD 1024
+#define IXGBEVF_DEFAULT_RXD 512
+#define IXGBEVF_MAX_TXD 4096
+#define IXGBEVF_MIN_TXD 64
+#define IXGBEVF_MAX_RXD 4096
+#define IXGBEVF_MIN_RXD 64
+
+/* Supported Rx Buffer Sizes */
+#define IXGBEVF_RXBUFFER_64 64 /* Used for packet split */
+#define IXGBEVF_RXBUFFER_128 128 /* Used for packet split */
+#define IXGBEVF_RXBUFFER_256 256 /* Used for packet split */
+#define IXGBEVF_RXBUFFER_2048 2048
+#define IXGBEVF_MAX_RXBUFFER 16384 /* largest size for single descriptor */
+
+#define IXGBEVF_RX_HDR_SIZE IXGBEVF_RXBUFFER_256
+
+#define MAXIMUM_ETHERNET_VLAN_SIZE (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)
+
+#define IXGBE_TX_FLAGS_CSUM (u32)(1)
+#define IXGBE_TX_FLAGS_VLAN (u32)(1 << 1)
+#define IXGBE_TX_FLAGS_TSO (u32)(1 << 2)
+#define IXGBE_TX_FLAGS_IPV4 (u32)(1 << 3)
+#define IXGBE_TX_FLAGS_FCOE (u32)(1 << 4)
+#define IXGBE_TX_FLAGS_FSO (u32)(1 << 5)
+#define IXGBE_TX_FLAGS_VLAN_MASK 0xffff0000
+#define IXGBE_TX_FLAGS_VLAN_PRIO_MASK 0x0000e000
+#define IXGBE_TX_FLAGS_VLAN_SHIFT 16
+
+/* MAX_MSIX_Q_VECTORS of these are allocated,
+ * but we only use one per queue-specific vector.
+ */
+struct ixgbevf_q_vector {
+ struct ixgbevf_adapter *adapter;
+ struct napi_struct napi;
+ DECLARE_BITMAP(rxr_idx, MAX_RX_QUEUES); /* Rx ring indices */
+ DECLARE_BITMAP(txr_idx, MAX_TX_QUEUES); /* Tx ring indices */
+ u8 rxr_count; /* Rx ring count assigned to this vector */
+ u8 txr_count; /* Tx ring count assigned to this vector */
+ u8 tx_itr;
+ u8 rx_itr;
+ u32 eitr;
+ int v_idx; /* vector index in list */
+};
+
+/* Helper macros to switch between ints/sec and what the register uses.
+ * And yes, it's the same math going both ways. The lowest value
+ * supported by all of the ixgbe hardware is 8.
+ */
+#define EITR_INTS_PER_SEC_TO_REG(_eitr) \
+ ((_eitr) ? (1000000000 / ((_eitr) * 256)) : 8)
+#define EITR_REG_TO_INTS_PER_SEC EITR_INTS_PER_SEC_TO_REG
+
+#define IXGBE_DESC_UNUSED(R) \
+ ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
+ (R)->next_to_clean - (R)->next_to_use - 1)
+
+#define IXGBE_RX_DESC_ADV(R, i) \
+ (&(((union ixgbe_adv_rx_desc *)((R).desc))[i]))
+#define IXGBE_TX_DESC_ADV(R, i) \
+ (&(((union ixgbe_adv_tx_desc *)((R).desc))[i]))
+#define IXGBE_TX_CTXTDESC_ADV(R, i) \
+ (&(((struct ixgbe_adv_tx_context_desc *)((R).desc))[i]))
+
+#define IXGBE_MAX_JUMBO_FRAME_SIZE 16128
+
+#define OTHER_VECTOR 1
+#define NON_Q_VECTORS (OTHER_VECTOR)
+
+#define MAX_MSIX_Q_VECTORS 2
+#define MAX_MSIX_COUNT 2
+
+#define MIN_MSIX_Q_VECTORS 2
+#define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NON_Q_VECTORS)
+
+/* board specific private data structure */
+struct ixgbevf_adapter {
+ struct timer_list watchdog_timer;
+ unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
+ u16 bd_number;
+ struct work_struct reset_task;
+ struct ixgbevf_q_vector *q_vector[MAX_MSIX_Q_VECTORS];
+ char name[MAX_MSIX_COUNT][IFNAMSIZ + 9];
+
+ /* Interrupt Throttle Rate */
+ u32 itr_setting;
+ u16 eitr_low;
+ u16 eitr_high;
+
+ /* TX */
+ struct ixgbevf_ring *tx_ring; /* One per active queue */
+ int num_tx_queues;
+ u64 restart_queue;
+ u64 hw_csum_tx_good;
+ u64 lsc_int;
+ u64 hw_tso_ctxt;
+ u64 hw_tso6_ctxt;
+ u32 tx_timeout_count;
+
+ /* RX */
+ struct ixgbevf_ring *rx_ring; /* One per active queue */
+ int num_rx_queues;
+ int num_rx_pools; /* == num_rx_queues in 82598 */
+ int num_rx_queues_per_pool; /* 1 if 82598, can be many if 82599 */
+ u64 hw_csum_rx_error;
+ u64 hw_rx_no_dma_resources;
+ u64 hw_csum_rx_good;
+ u64 non_eop_descs;
+ int num_msix_vectors;
+ int max_msix_q_vectors; /* true count of q_vectors for device */
+ struct ixgbevf_ring_feature ring_feature[RING_F_ARRAY_SIZE];
+ struct msix_entry *msix_entries;
+
+ u64 rx_hdr_split;
+ u32 alloc_rx_page_failed;
+ u32 alloc_rx_buff_failed;
+
+ /* Some features need tri-state capability,
+ * thus the additional *_CAPABLE flags.
+ */
+ u32 flags;
+#define IXGBE_FLAG_RX_CSUM_ENABLED (u32)(1)
+#define IXGBE_FLAG_RX_1BUF_CAPABLE (u32)(1 << 1)
+#define IXGBE_FLAG_RX_PS_CAPABLE (u32)(1 << 2)
+#define IXGBE_FLAG_RX_PS_ENABLED (u32)(1 << 3)
+#define IXGBE_FLAG_IN_NETPOLL (u32)(1 << 4)
+#define IXGBE_FLAG_IMIR_ENABLED (u32)(1 << 5)
+#define IXGBE_FLAG_MQ_CAPABLE (u32)(1 << 6)
+#define IXGBE_FLAG_NEED_LINK_UPDATE (u32)(1 << 7)
+#define IXGBE_FLAG_IN_WATCHDOG_TASK (u32)(1 << 8)
+ /* OS defined structs */
+ struct net_device *netdev;
+ struct pci_dev *pdev;
+
+ /* structs defined in ixgbe_vf.h */
+ struct ixgbe_hw hw;
+ u16 msg_enable;
+ struct ixgbevf_hw_stats stats;
+ u64 zero_base;
+ /* Interrupt Throttle Rate */
+ u32 eitr_param;
+
+ unsigned long state;
+ u32 *config_space;
+ u64 tx_busy;
+ unsigned int tx_ring_count;
+ unsigned int rx_ring_count;
+
+ u32 link_speed;
+ bool link_up;
+ unsigned long link_check_timeout;
+
+ struct work_struct watchdog_task;
+ bool netdev_registered;
+ bool dev_closed;
+};
+
+enum ixbgevf_state_t {
+ __IXGBEVF_TESTING,
+ __IXGBEVF_RESETTING,
+ __IXGBEVF_DOWN
+};
+
+enum ixgbevf_boards {
+ board_82599_vf,
+ board_X540_vf,
+};
+
+extern struct ixgbevf_info ixgbevf_82599_vf_info;
+extern struct ixgbevf_info ixgbevf_X540_vf_info;
+extern struct ixgbe_mbx_operations ixgbevf_mbx_ops;
+
+/* needed by ethtool.c */
+extern char ixgbevf_driver_name[];
+extern const char ixgbevf_driver_version[];
+
+extern int ixgbevf_up(struct ixgbevf_adapter *adapter);
+extern void ixgbevf_down(struct ixgbevf_adapter *adapter);
+extern void ixgbevf_reinit_locked(struct ixgbevf_adapter *adapter);
+extern void ixgbevf_reset(struct ixgbevf_adapter *adapter);
+extern void ixgbevf_set_ethtool_ops(struct net_device *netdev);
+extern int ixgbevf_setup_rx_resources(struct ixgbevf_adapter *,
+ struct ixgbevf_ring *);
+extern int ixgbevf_setup_tx_resources(struct ixgbevf_adapter *,
+ struct ixgbevf_ring *);
+extern void ixgbevf_free_rx_resources(struct ixgbevf_adapter *,
+ struct ixgbevf_ring *);
+extern void ixgbevf_free_tx_resources(struct ixgbevf_adapter *,
+ struct ixgbevf_ring *);
+extern void ixgbevf_update_stats(struct ixgbevf_adapter *adapter);
+
+#ifdef ETHTOOL_OPS_COMPAT
+extern int ethtool_ioctl(struct ifreq *ifr);
+
+#endif
+extern void ixgbe_napi_add_all(struct ixgbevf_adapter *adapter);
+extern void ixgbe_napi_del_all(struct ixgbevf_adapter *adapter);
+
+#ifdef DEBUG
+extern char *ixgbevf_get_hw_dev_name(struct ixgbe_hw *hw);
+#define hw_dbg(hw, format, arg...) \
+ printk(KERN_DEBUG "%s: " format, ixgbevf_get_hw_dev_name(hw), ##arg)
+#else
+#define hw_dbg(hw, format, arg...) do {} while (0)
+#endif
+
+#endif /* _IXGBEVF_H_ */