33bd9f601e
The counters in the 82599 Virtual Function are not clear on read. They accumulate to the maximum value and then roll over. They are also not cleared when the VF executes a soft reset, so it is possible they are non-zero when the driver loads and starts. This has all been accounted for in the code that keeps the stats up to date but there is one case that is not. When the PF driver is reset the counters in the VF are all reset to zero. This adds an additional accounting overhead into the VF driver when the PF is reset under its feet. This patch adds additional counters that are used by the VF driver to accumulate and save stats after a PF reset has been detected. Prior to this patch displaying the stats in the VF after the PF has reset would show bogus data. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
175 lines
4.3 KiB
C
175 lines
4.3 KiB
C
/*******************************************************************************
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Intel 82599 Virtual Function driver
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Copyright(c) 1999 - 2009 Intel Corporation.
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This program is free software; you can redistribute it and/or modify it
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under the terms and conditions of the GNU General Public License,
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version 2, as published by the Free Software Foundation.
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This program is distributed in the hope it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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The full GNU General Public License is included in this distribution in
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the file called "COPYING".
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Contact Information:
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e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
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Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*******************************************************************************/
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#ifndef __IXGBE_VF_H__
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#define __IXGBE_VF_H__
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/if_ether.h>
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#include "defines.h"
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#include "regs.h"
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#include "mbx.h"
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struct ixgbe_hw;
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/* iterator type for walking multicast address lists */
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typedef u8* (*ixgbe_mc_addr_itr) (struct ixgbe_hw *hw, u8 **mc_addr_ptr,
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u32 *vmdq);
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struct ixgbe_mac_operations {
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s32 (*init_hw)(struct ixgbe_hw *);
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s32 (*reset_hw)(struct ixgbe_hw *);
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s32 (*start_hw)(struct ixgbe_hw *);
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s32 (*clear_hw_cntrs)(struct ixgbe_hw *);
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enum ixgbe_media_type (*get_media_type)(struct ixgbe_hw *);
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u32 (*get_supported_physical_layer)(struct ixgbe_hw *);
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s32 (*get_mac_addr)(struct ixgbe_hw *, u8 *);
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s32 (*stop_adapter)(struct ixgbe_hw *);
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s32 (*get_bus_info)(struct ixgbe_hw *);
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/* Link */
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s32 (*setup_link)(struct ixgbe_hw *, ixgbe_link_speed, bool, bool);
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s32 (*check_link)(struct ixgbe_hw *, ixgbe_link_speed *, bool *, bool);
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s32 (*get_link_capabilities)(struct ixgbe_hw *, ixgbe_link_speed *,
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bool *);
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/* RAR, Multicast, VLAN */
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s32 (*set_rar)(struct ixgbe_hw *, u32, u8 *, u32);
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s32 (*init_rx_addrs)(struct ixgbe_hw *);
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s32 (*update_mc_addr_list)(struct ixgbe_hw *, u8 *, u32,
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ixgbe_mc_addr_itr);
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s32 (*enable_mc)(struct ixgbe_hw *);
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s32 (*disable_mc)(struct ixgbe_hw *);
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s32 (*clear_vfta)(struct ixgbe_hw *);
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s32 (*set_vfta)(struct ixgbe_hw *, u32, u32, bool);
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};
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enum ixgbe_mac_type {
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ixgbe_mac_unknown = 0,
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ixgbe_mac_82599_vf,
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ixgbe_num_macs
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};
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struct ixgbe_mac_info {
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struct ixgbe_mac_operations ops;
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u8 addr[6];
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u8 perm_addr[6];
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enum ixgbe_mac_type type;
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s32 mc_filter_type;
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bool get_link_status;
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u32 max_tx_queues;
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u32 max_rx_queues;
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u32 max_msix_vectors;
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};
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struct ixgbe_mbx_operations {
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s32 (*init_params)(struct ixgbe_hw *hw);
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s32 (*read)(struct ixgbe_hw *, u32 *, u16);
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s32 (*write)(struct ixgbe_hw *, u32 *, u16);
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s32 (*read_posted)(struct ixgbe_hw *, u32 *, u16);
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s32 (*write_posted)(struct ixgbe_hw *, u32 *, u16);
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s32 (*check_for_msg)(struct ixgbe_hw *);
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s32 (*check_for_ack)(struct ixgbe_hw *);
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s32 (*check_for_rst)(struct ixgbe_hw *);
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};
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struct ixgbe_mbx_stats {
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u32 msgs_tx;
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u32 msgs_rx;
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u32 acks;
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u32 reqs;
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u32 rsts;
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};
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struct ixgbe_mbx_info {
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struct ixgbe_mbx_operations ops;
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struct ixgbe_mbx_stats stats;
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u32 timeout;
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u32 udelay;
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u32 v2p_mailbox;
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u16 size;
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};
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struct ixgbe_hw {
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void *back;
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u8 __iomem *hw_addr;
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u8 *flash_address;
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unsigned long io_base;
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struct ixgbe_mac_info mac;
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struct ixgbe_mbx_info mbx;
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u16 device_id;
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u16 subsystem_vendor_id;
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u16 subsystem_device_id;
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u16 vendor_id;
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u8 revision_id;
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bool adapter_stopped;
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};
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struct ixgbevf_hw_stats {
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u64 base_vfgprc;
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u64 base_vfgptc;
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u64 base_vfgorc;
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u64 base_vfgotc;
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u64 base_vfmprc;
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u64 last_vfgprc;
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u64 last_vfgptc;
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u64 last_vfgorc;
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u64 last_vfgotc;
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u64 last_vfmprc;
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u64 vfgprc;
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u64 vfgptc;
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u64 vfgorc;
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u64 vfgotc;
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u64 vfmprc;
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u64 saved_reset_vfgprc;
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u64 saved_reset_vfgptc;
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u64 saved_reset_vfgorc;
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u64 saved_reset_vfgotc;
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u64 saved_reset_vfmprc;
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};
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struct ixgbevf_info {
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enum ixgbe_mac_type mac;
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struct ixgbe_mac_operations *mac_ops;
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};
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#endif /* __IXGBE_VF_H__ */
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