mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 05:34:00 +08:00
7eaf8313b1
In i40iw_free_virt_mem(), do not set mem->va to NULL
after freeing it as mem->va is a self-referencing pointer
to mem.
Fixes: 4e9042e647
("i40iw: add hw and utils files")
Reported-by: Stefan Assmann <sassmann@redhat.com>
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
1279 lines
34 KiB
C
1279 lines
34 KiB
C
/*******************************************************************************
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*
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* Copyright (c) 2015-2016 Intel Corporation. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenFabrics.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*******************************************************************************/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/ethtool.h>
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#include <linux/mii.h>
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#include <linux/if_vlan.h>
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#include <linux/crc32.h>
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#include <linux/in.h>
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#include <linux/ip.h>
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#include <linux/tcp.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <asm/irq.h>
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#include <asm/byteorder.h>
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#include <net/netevent.h>
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#include <net/neighbour.h>
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#include "i40iw.h"
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/**
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* i40iw_arp_table - manage arp table
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* @iwdev: iwarp device
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* @ip_addr: ip address for device
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* @mac_addr: mac address ptr
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* @action: modify, delete or add
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*/
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int i40iw_arp_table(struct i40iw_device *iwdev,
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u32 *ip_addr,
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bool ipv4,
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u8 *mac_addr,
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u32 action)
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{
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int arp_index;
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int err;
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u32 ip[4];
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if (ipv4) {
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memset(ip, 0, sizeof(ip));
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ip[0] = *ip_addr;
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} else {
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memcpy(ip, ip_addr, sizeof(ip));
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}
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for (arp_index = 0; (u32)arp_index < iwdev->arp_table_size; arp_index++)
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if (memcmp(iwdev->arp_table[arp_index].ip_addr, ip, sizeof(ip)) == 0)
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break;
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switch (action) {
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case I40IW_ARP_ADD:
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if (arp_index != iwdev->arp_table_size)
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return -1;
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arp_index = 0;
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err = i40iw_alloc_resource(iwdev, iwdev->allocated_arps,
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iwdev->arp_table_size,
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(u32 *)&arp_index,
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&iwdev->next_arp_index);
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if (err)
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return err;
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memcpy(iwdev->arp_table[arp_index].ip_addr, ip, sizeof(ip));
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ether_addr_copy(iwdev->arp_table[arp_index].mac_addr, mac_addr);
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break;
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case I40IW_ARP_RESOLVE:
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if (arp_index == iwdev->arp_table_size)
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return -1;
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break;
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case I40IW_ARP_DELETE:
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if (arp_index == iwdev->arp_table_size)
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return -1;
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memset(iwdev->arp_table[arp_index].ip_addr, 0,
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sizeof(iwdev->arp_table[arp_index].ip_addr));
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eth_zero_addr(iwdev->arp_table[arp_index].mac_addr);
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i40iw_free_resource(iwdev, iwdev->allocated_arps, arp_index);
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break;
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default:
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return -1;
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}
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return arp_index;
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}
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/**
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* i40iw_wr32 - write 32 bits to hw register
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* @hw: hardware information including registers
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* @reg: register offset
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* @value: vvalue to write to register
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*/
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inline void i40iw_wr32(struct i40iw_hw *hw, u32 reg, u32 value)
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{
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writel(value, hw->hw_addr + reg);
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}
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/**
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* i40iw_rd32 - read a 32 bit hw register
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* @hw: hardware information including registers
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* @reg: register offset
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*
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* Return value of register content
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*/
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inline u32 i40iw_rd32(struct i40iw_hw *hw, u32 reg)
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{
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return readl(hw->hw_addr + reg);
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}
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/**
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* i40iw_inetaddr_event - system notifier for netdev events
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* @notfier: not used
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* @event: event for notifier
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* @ptr: if address
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*/
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int i40iw_inetaddr_event(struct notifier_block *notifier,
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unsigned long event,
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void *ptr)
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{
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struct in_ifaddr *ifa = ptr;
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struct net_device *event_netdev = ifa->ifa_dev->dev;
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struct net_device *netdev;
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struct net_device *upper_dev;
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struct i40iw_device *iwdev;
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struct i40iw_handler *hdl;
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u32 local_ipaddr;
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hdl = i40iw_find_netdev(event_netdev);
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if (!hdl)
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return NOTIFY_DONE;
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iwdev = &hdl->device;
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netdev = iwdev->ldev->netdev;
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upper_dev = netdev_master_upper_dev_get(netdev);
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if (netdev != event_netdev)
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return NOTIFY_DONE;
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switch (event) {
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case NETDEV_DOWN:
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if (upper_dev)
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local_ipaddr = ntohl(
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((struct in_device *)upper_dev->ip_ptr)->ifa_list->ifa_address);
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else
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local_ipaddr = ntohl(ifa->ifa_address);
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i40iw_manage_arp_cache(iwdev,
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netdev->dev_addr,
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&local_ipaddr,
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true,
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I40IW_ARP_DELETE);
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return NOTIFY_OK;
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case NETDEV_UP:
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if (upper_dev)
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local_ipaddr = ntohl(
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((struct in_device *)upper_dev->ip_ptr)->ifa_list->ifa_address);
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else
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local_ipaddr = ntohl(ifa->ifa_address);
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i40iw_manage_arp_cache(iwdev,
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netdev->dev_addr,
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&local_ipaddr,
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true,
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I40IW_ARP_ADD);
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break;
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case NETDEV_CHANGEADDR:
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/* Add the address to the IP table */
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if (upper_dev)
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local_ipaddr = ntohl(
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((struct in_device *)upper_dev->ip_ptr)->ifa_list->ifa_address);
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else
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local_ipaddr = ntohl(ifa->ifa_address);
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i40iw_manage_arp_cache(iwdev,
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netdev->dev_addr,
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&local_ipaddr,
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true,
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I40IW_ARP_ADD);
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break;
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default:
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break;
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}
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return NOTIFY_DONE;
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}
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/**
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* i40iw_inet6addr_event - system notifier for ipv6 netdev events
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* @notfier: not used
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* @event: event for notifier
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* @ptr: if address
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*/
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int i40iw_inet6addr_event(struct notifier_block *notifier,
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unsigned long event,
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void *ptr)
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{
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struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
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struct net_device *event_netdev = ifa->idev->dev;
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struct net_device *netdev;
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struct i40iw_device *iwdev;
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struct i40iw_handler *hdl;
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u32 local_ipaddr6[4];
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hdl = i40iw_find_netdev(event_netdev);
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if (!hdl)
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return NOTIFY_DONE;
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iwdev = &hdl->device;
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netdev = iwdev->ldev->netdev;
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if (netdev != event_netdev)
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return NOTIFY_DONE;
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switch (event) {
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case NETDEV_DOWN:
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i40iw_copy_ip_ntohl(local_ipaddr6, ifa->addr.in6_u.u6_addr32);
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i40iw_manage_arp_cache(iwdev,
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netdev->dev_addr,
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local_ipaddr6,
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false,
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I40IW_ARP_DELETE);
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return NOTIFY_OK;
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case NETDEV_UP:
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/* Fall through */
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case NETDEV_CHANGEADDR:
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i40iw_copy_ip_ntohl(local_ipaddr6, ifa->addr.in6_u.u6_addr32);
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i40iw_manage_arp_cache(iwdev,
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netdev->dev_addr,
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local_ipaddr6,
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false,
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I40IW_ARP_ADD);
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break;
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default:
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break;
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}
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return NOTIFY_DONE;
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}
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/**
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* i40iw_net_event - system notifier for net events
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* @notfier: not used
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* @event: event for notifier
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* @ptr: neighbor
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*/
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int i40iw_net_event(struct notifier_block *notifier, unsigned long event, void *ptr)
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{
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struct neighbour *neigh = ptr;
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struct i40iw_device *iwdev;
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struct i40iw_handler *iwhdl;
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__be32 *p;
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u32 local_ipaddr[4];
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switch (event) {
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case NETEVENT_NEIGH_UPDATE:
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iwhdl = i40iw_find_netdev((struct net_device *)neigh->dev);
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if (!iwhdl)
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return NOTIFY_DONE;
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iwdev = &iwhdl->device;
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p = (__be32 *)neigh->primary_key;
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i40iw_copy_ip_ntohl(local_ipaddr, p);
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if (neigh->nud_state & NUD_VALID) {
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i40iw_manage_arp_cache(iwdev,
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neigh->ha,
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local_ipaddr,
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false,
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I40IW_ARP_ADD);
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} else {
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i40iw_manage_arp_cache(iwdev,
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neigh->ha,
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local_ipaddr,
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false,
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I40IW_ARP_DELETE);
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}
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break;
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default:
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break;
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}
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return NOTIFY_DONE;
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}
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/**
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* i40iw_get_cqp_request - get cqp struct
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* @cqp: device cqp ptr
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* @wait: cqp to be used in wait mode
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*/
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struct i40iw_cqp_request *i40iw_get_cqp_request(struct i40iw_cqp *cqp, bool wait)
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{
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struct i40iw_cqp_request *cqp_request = NULL;
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unsigned long flags;
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spin_lock_irqsave(&cqp->req_lock, flags);
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if (!list_empty(&cqp->cqp_avail_reqs)) {
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cqp_request = list_entry(cqp->cqp_avail_reqs.next,
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struct i40iw_cqp_request, list);
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list_del_init(&cqp_request->list);
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}
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spin_unlock_irqrestore(&cqp->req_lock, flags);
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if (!cqp_request) {
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cqp_request = kzalloc(sizeof(*cqp_request), GFP_ATOMIC);
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if (cqp_request) {
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cqp_request->dynamic = true;
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INIT_LIST_HEAD(&cqp_request->list);
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init_waitqueue_head(&cqp_request->waitq);
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}
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}
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if (!cqp_request) {
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i40iw_pr_err("CQP Request Fail: No Memory");
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return NULL;
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}
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if (wait) {
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atomic_set(&cqp_request->refcount, 2);
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cqp_request->waiting = true;
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} else {
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atomic_set(&cqp_request->refcount, 1);
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}
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return cqp_request;
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}
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/**
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* i40iw_free_cqp_request - free cqp request
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* @cqp: cqp ptr
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* @cqp_request: to be put back in cqp list
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*/
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void i40iw_free_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp_request)
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{
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unsigned long flags;
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if (cqp_request->dynamic) {
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kfree(cqp_request);
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} else {
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cqp_request->request_done = false;
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cqp_request->callback_fcn = NULL;
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cqp_request->waiting = false;
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spin_lock_irqsave(&cqp->req_lock, flags);
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list_add_tail(&cqp_request->list, &cqp->cqp_avail_reqs);
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spin_unlock_irqrestore(&cqp->req_lock, flags);
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}
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}
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|
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/**
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* i40iw_put_cqp_request - dec ref count and free if 0
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* @cqp: cqp ptr
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* @cqp_request: to be put back in cqp list
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*/
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void i40iw_put_cqp_request(struct i40iw_cqp *cqp,
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struct i40iw_cqp_request *cqp_request)
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{
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if (atomic_dec_and_test(&cqp_request->refcount))
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i40iw_free_cqp_request(cqp, cqp_request);
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}
|
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|
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/**
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* i40iw_free_qp - callback after destroy cqp completes
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* @cqp_request: cqp request for destroy qp
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* @num: not used
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*/
|
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static void i40iw_free_qp(struct i40iw_cqp_request *cqp_request, u32 num)
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{
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struct i40iw_sc_qp *qp = (struct i40iw_sc_qp *)cqp_request->param;
|
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struct i40iw_qp *iwqp = (struct i40iw_qp *)qp->back_qp;
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struct i40iw_device *iwdev;
|
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u32 qp_num = iwqp->ibqp.qp_num;
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|
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iwdev = iwqp->iwdev;
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|
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i40iw_rem_pdusecount(iwqp->iwpd, iwdev);
|
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i40iw_free_qp_resources(iwdev, iwqp, qp_num);
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}
|
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|
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/**
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* i40iw_wait_event - wait for completion
|
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* @iwdev: iwarp device
|
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* @cqp_request: cqp request to wait
|
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*/
|
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static int i40iw_wait_event(struct i40iw_device *iwdev,
|
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struct i40iw_cqp_request *cqp_request)
|
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{
|
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struct cqp_commands_info *info = &cqp_request->info;
|
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struct i40iw_cqp *iwcqp = &iwdev->cqp;
|
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bool cqp_error = false;
|
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int err_code = 0;
|
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int timeout_ret = 0;
|
|
|
|
timeout_ret = wait_event_timeout(cqp_request->waitq,
|
|
cqp_request->request_done,
|
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I40IW_EVENT_TIMEOUT);
|
|
if (!timeout_ret) {
|
|
i40iw_pr_err("error cqp command 0x%x timed out ret = %d\n",
|
|
info->cqp_cmd, timeout_ret);
|
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err_code = -ETIME;
|
|
i40iw_request_reset(iwdev);
|
|
goto done;
|
|
}
|
|
cqp_error = cqp_request->compl_info.error;
|
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if (cqp_error) {
|
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i40iw_pr_err("error cqp command 0x%x completion maj = 0x%x min=0x%x\n",
|
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info->cqp_cmd, cqp_request->compl_info.maj_err_code,
|
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cqp_request->compl_info.min_err_code);
|
|
err_code = -EPROTO;
|
|
goto done;
|
|
}
|
|
done:
|
|
i40iw_put_cqp_request(iwcqp, cqp_request);
|
|
return err_code;
|
|
}
|
|
|
|
/**
|
|
* i40iw_handle_cqp_op - process cqp command
|
|
* @iwdev: iwarp device
|
|
* @cqp_request: cqp request to process
|
|
*/
|
|
enum i40iw_status_code i40iw_handle_cqp_op(struct i40iw_device *iwdev,
|
|
struct i40iw_cqp_request
|
|
*cqp_request)
|
|
{
|
|
struct i40iw_sc_dev *dev = &iwdev->sc_dev;
|
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enum i40iw_status_code status;
|
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struct cqp_commands_info *info = &cqp_request->info;
|
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int err_code = 0;
|
|
|
|
status = i40iw_process_cqp_cmd(dev, info);
|
|
if (status) {
|
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i40iw_pr_err("error cqp command 0x%x failed\n", info->cqp_cmd);
|
|
i40iw_free_cqp_request(&iwdev->cqp, cqp_request);
|
|
return status;
|
|
}
|
|
if (cqp_request->waiting)
|
|
err_code = i40iw_wait_event(iwdev, cqp_request);
|
|
if (err_code)
|
|
status = I40IW_ERR_CQP_COMPL_ERROR;
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* i40iw_add_pdusecount - add pd refcount
|
|
* @iwpd: pd for refcount
|
|
*/
|
|
void i40iw_add_pdusecount(struct i40iw_pd *iwpd)
|
|
{
|
|
atomic_inc(&iwpd->usecount);
|
|
}
|
|
|
|
/**
|
|
* i40iw_rem_pdusecount - decrement refcount for pd and free if 0
|
|
* @iwpd: pd for refcount
|
|
* @iwdev: iwarp device
|
|
*/
|
|
void i40iw_rem_pdusecount(struct i40iw_pd *iwpd, struct i40iw_device *iwdev)
|
|
{
|
|
if (!atomic_dec_and_test(&iwpd->usecount))
|
|
return;
|
|
i40iw_free_resource(iwdev, iwdev->allocated_pds, iwpd->sc_pd.pd_id);
|
|
kfree(iwpd);
|
|
}
|
|
|
|
/**
|
|
* i40iw_add_ref - add refcount for qp
|
|
* @ibqp: iqarp qp
|
|
*/
|
|
void i40iw_add_ref(struct ib_qp *ibqp)
|
|
{
|
|
struct i40iw_qp *iwqp = (struct i40iw_qp *)ibqp;
|
|
|
|
atomic_inc(&iwqp->refcount);
|
|
}
|
|
|
|
/**
|
|
* i40iw_rem_ref - rem refcount for qp and free if 0
|
|
* @ibqp: iqarp qp
|
|
*/
|
|
void i40iw_rem_ref(struct ib_qp *ibqp)
|
|
{
|
|
struct i40iw_qp *iwqp;
|
|
enum i40iw_status_code status;
|
|
struct i40iw_cqp_request *cqp_request;
|
|
struct cqp_commands_info *cqp_info;
|
|
struct i40iw_device *iwdev;
|
|
u32 qp_num;
|
|
unsigned long flags;
|
|
|
|
iwqp = to_iwqp(ibqp);
|
|
iwdev = iwqp->iwdev;
|
|
spin_lock_irqsave(&iwdev->qptable_lock, flags);
|
|
if (!atomic_dec_and_test(&iwqp->refcount)) {
|
|
spin_unlock_irqrestore(&iwdev->qptable_lock, flags);
|
|
return;
|
|
}
|
|
|
|
qp_num = iwqp->ibqp.qp_num;
|
|
iwdev->qp_table[qp_num] = NULL;
|
|
spin_unlock_irqrestore(&iwdev->qptable_lock, flags);
|
|
cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false);
|
|
if (!cqp_request)
|
|
return;
|
|
|
|
cqp_request->callback_fcn = i40iw_free_qp;
|
|
cqp_request->param = (void *)&iwqp->sc_qp;
|
|
cqp_info = &cqp_request->info;
|
|
cqp_info->cqp_cmd = OP_QP_DESTROY;
|
|
cqp_info->post_sq = 1;
|
|
cqp_info->in.u.qp_destroy.qp = &iwqp->sc_qp;
|
|
cqp_info->in.u.qp_destroy.scratch = (uintptr_t)cqp_request;
|
|
cqp_info->in.u.qp_destroy.remove_hash_idx = true;
|
|
status = i40iw_handle_cqp_op(iwdev, cqp_request);
|
|
if (status)
|
|
i40iw_pr_err("CQP-OP Destroy QP fail");
|
|
}
|
|
|
|
/**
|
|
* i40iw_get_qp - get qp address
|
|
* @device: iwarp device
|
|
* @qpn: qp number
|
|
*/
|
|
struct ib_qp *i40iw_get_qp(struct ib_device *device, int qpn)
|
|
{
|
|
struct i40iw_device *iwdev = to_iwdev(device);
|
|
|
|
if ((qpn < IW_FIRST_QPN) || (qpn >= iwdev->max_qp))
|
|
return NULL;
|
|
|
|
return &iwdev->qp_table[qpn]->ibqp;
|
|
}
|
|
|
|
/**
|
|
* i40iw_debug_buf - print debug msg and buffer is mask set
|
|
* @dev: hardware control device structure
|
|
* @mask: mask to compare if to print debug buffer
|
|
* @buf: points buffer addr
|
|
* @size: saize of buffer to print
|
|
*/
|
|
void i40iw_debug_buf(struct i40iw_sc_dev *dev,
|
|
enum i40iw_debug_flag mask,
|
|
char *desc,
|
|
u64 *buf,
|
|
u32 size)
|
|
{
|
|
u32 i;
|
|
|
|
if (!(dev->debug_mask & mask))
|
|
return;
|
|
i40iw_debug(dev, mask, "%s\n", desc);
|
|
i40iw_debug(dev, mask, "starting address virt=%p phy=%llxh\n", buf,
|
|
(unsigned long long)virt_to_phys(buf));
|
|
|
|
for (i = 0; i < size; i += 8)
|
|
i40iw_debug(dev, mask, "index %03d val: %016llx\n", i, buf[i / 8]);
|
|
}
|
|
|
|
/**
|
|
* i40iw_get_hw_addr - return hw addr
|
|
* @par: points to shared dev
|
|
*/
|
|
u8 __iomem *i40iw_get_hw_addr(void *par)
|
|
{
|
|
struct i40iw_sc_dev *dev = (struct i40iw_sc_dev *)par;
|
|
|
|
return dev->hw->hw_addr;
|
|
}
|
|
|
|
/**
|
|
* i40iw_remove_head - return head entry and remove from list
|
|
* @list: list for entry
|
|
*/
|
|
void *i40iw_remove_head(struct list_head *list)
|
|
{
|
|
struct list_head *entry;
|
|
|
|
if (list_empty(list))
|
|
return NULL;
|
|
|
|
entry = (void *)list->next;
|
|
list_del(entry);
|
|
return (void *)entry;
|
|
}
|
|
|
|
/**
|
|
* i40iw_allocate_dma_mem - Memory alloc helper fn
|
|
* @hw: pointer to the HW structure
|
|
* @mem: ptr to mem struct to fill out
|
|
* @size: size of memory requested
|
|
* @alignment: what to align the allocation to
|
|
*/
|
|
enum i40iw_status_code i40iw_allocate_dma_mem(struct i40iw_hw *hw,
|
|
struct i40iw_dma_mem *mem,
|
|
u64 size,
|
|
u32 alignment)
|
|
{
|
|
struct pci_dev *pcidev = (struct pci_dev *)hw->dev_context;
|
|
|
|
if (!mem)
|
|
return I40IW_ERR_PARAM;
|
|
mem->size = ALIGN(size, alignment);
|
|
mem->va = dma_zalloc_coherent(&pcidev->dev, mem->size,
|
|
(dma_addr_t *)&mem->pa, GFP_KERNEL);
|
|
if (!mem->va)
|
|
return I40IW_ERR_NO_MEMORY;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* i40iw_free_dma_mem - Memory free helper fn
|
|
* @hw: pointer to the HW structure
|
|
* @mem: ptr to mem struct to free
|
|
*/
|
|
void i40iw_free_dma_mem(struct i40iw_hw *hw, struct i40iw_dma_mem *mem)
|
|
{
|
|
struct pci_dev *pcidev = (struct pci_dev *)hw->dev_context;
|
|
|
|
if (!mem || !mem->va)
|
|
return;
|
|
|
|
dma_free_coherent(&pcidev->dev, mem->size,
|
|
mem->va, (dma_addr_t)mem->pa);
|
|
mem->va = NULL;
|
|
}
|
|
|
|
/**
|
|
* i40iw_allocate_virt_mem - virtual memory alloc helper fn
|
|
* @hw: pointer to the HW structure
|
|
* @mem: ptr to mem struct to fill out
|
|
* @size: size of memory requested
|
|
*/
|
|
enum i40iw_status_code i40iw_allocate_virt_mem(struct i40iw_hw *hw,
|
|
struct i40iw_virt_mem *mem,
|
|
u32 size)
|
|
{
|
|
if (!mem)
|
|
return I40IW_ERR_PARAM;
|
|
|
|
mem->size = size;
|
|
mem->va = kzalloc(size, GFP_KERNEL);
|
|
|
|
if (mem->va)
|
|
return 0;
|
|
else
|
|
return I40IW_ERR_NO_MEMORY;
|
|
}
|
|
|
|
/**
|
|
* i40iw_free_virt_mem - virtual memory free helper fn
|
|
* @hw: pointer to the HW structure
|
|
* @mem: ptr to mem struct to free
|
|
*/
|
|
enum i40iw_status_code i40iw_free_virt_mem(struct i40iw_hw *hw,
|
|
struct i40iw_virt_mem *mem)
|
|
{
|
|
if (!mem)
|
|
return I40IW_ERR_PARAM;
|
|
/*
|
|
* mem->va points to the parent of mem, so both mem and mem->va
|
|
* can not be touched once mem->va is freed
|
|
*/
|
|
kfree(mem->va);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* i40iw_cqp_sds_cmd - create cqp command for sd
|
|
* @dev: hardware control device structure
|
|
* @sd_info: information for sd cqp
|
|
*
|
|
*/
|
|
enum i40iw_status_code i40iw_cqp_sds_cmd(struct i40iw_sc_dev *dev,
|
|
struct i40iw_update_sds_info *sdinfo)
|
|
{
|
|
enum i40iw_status_code status;
|
|
struct i40iw_cqp_request *cqp_request;
|
|
struct cqp_commands_info *cqp_info;
|
|
struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
|
|
|
|
cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
|
|
if (!cqp_request)
|
|
return I40IW_ERR_NO_MEMORY;
|
|
cqp_info = &cqp_request->info;
|
|
memcpy(&cqp_info->in.u.update_pe_sds.info, sdinfo,
|
|
sizeof(cqp_info->in.u.update_pe_sds.info));
|
|
cqp_info->cqp_cmd = OP_UPDATE_PE_SDS;
|
|
cqp_info->post_sq = 1;
|
|
cqp_info->in.u.update_pe_sds.dev = dev;
|
|
cqp_info->in.u.update_pe_sds.scratch = (uintptr_t)cqp_request;
|
|
status = i40iw_handle_cqp_op(iwdev, cqp_request);
|
|
if (status)
|
|
i40iw_pr_err("CQP-OP Update SD's fail");
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* i40iw_term_modify_qp - modify qp for term message
|
|
* @qp: hardware control qp
|
|
* @next_state: qp's next state
|
|
* @term: terminate code
|
|
* @term_len: length
|
|
*/
|
|
void i40iw_term_modify_qp(struct i40iw_sc_qp *qp, u8 next_state, u8 term, u8 term_len)
|
|
{
|
|
struct i40iw_qp *iwqp;
|
|
|
|
iwqp = (struct i40iw_qp *)qp->back_qp;
|
|
i40iw_next_iw_state(iwqp, next_state, 0, term, term_len);
|
|
};
|
|
|
|
/**
|
|
* i40iw_terminate_done - after terminate is completed
|
|
* @qp: hardware control qp
|
|
* @timeout_occurred: indicates if terminate timer expired
|
|
*/
|
|
void i40iw_terminate_done(struct i40iw_sc_qp *qp, int timeout_occurred)
|
|
{
|
|
struct i40iw_qp *iwqp;
|
|
u32 next_iwarp_state = I40IW_QP_STATE_ERROR;
|
|
u8 hte = 0;
|
|
bool first_time;
|
|
unsigned long flags;
|
|
|
|
iwqp = (struct i40iw_qp *)qp->back_qp;
|
|
spin_lock_irqsave(&iwqp->lock, flags);
|
|
if (iwqp->hte_added) {
|
|
iwqp->hte_added = 0;
|
|
hte = 1;
|
|
}
|
|
first_time = !(qp->term_flags & I40IW_TERM_DONE);
|
|
qp->term_flags |= I40IW_TERM_DONE;
|
|
spin_unlock_irqrestore(&iwqp->lock, flags);
|
|
if (first_time) {
|
|
if (!timeout_occurred)
|
|
i40iw_terminate_del_timer(qp);
|
|
else
|
|
next_iwarp_state = I40IW_QP_STATE_CLOSING;
|
|
|
|
i40iw_next_iw_state(iwqp, next_iwarp_state, hte, 0, 0);
|
|
i40iw_cm_disconn(iwqp);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* i40iw_terminate_imeout - timeout happened
|
|
* @context: points to iwarp qp
|
|
*/
|
|
static void i40iw_terminate_timeout(unsigned long context)
|
|
{
|
|
struct i40iw_qp *iwqp = (struct i40iw_qp *)context;
|
|
struct i40iw_sc_qp *qp = (struct i40iw_sc_qp *)&iwqp->sc_qp;
|
|
|
|
i40iw_terminate_done(qp, 1);
|
|
}
|
|
|
|
/**
|
|
* i40iw_terminate_start_timer - start terminate timeout
|
|
* @qp: hardware control qp
|
|
*/
|
|
void i40iw_terminate_start_timer(struct i40iw_sc_qp *qp)
|
|
{
|
|
struct i40iw_qp *iwqp;
|
|
|
|
iwqp = (struct i40iw_qp *)qp->back_qp;
|
|
init_timer(&iwqp->terminate_timer);
|
|
iwqp->terminate_timer.function = i40iw_terminate_timeout;
|
|
iwqp->terminate_timer.expires = jiffies + HZ;
|
|
iwqp->terminate_timer.data = (unsigned long)iwqp;
|
|
add_timer(&iwqp->terminate_timer);
|
|
}
|
|
|
|
/**
|
|
* i40iw_terminate_del_timer - delete terminate timeout
|
|
* @qp: hardware control qp
|
|
*/
|
|
void i40iw_terminate_del_timer(struct i40iw_sc_qp *qp)
|
|
{
|
|
struct i40iw_qp *iwqp;
|
|
|
|
iwqp = (struct i40iw_qp *)qp->back_qp;
|
|
del_timer(&iwqp->terminate_timer);
|
|
}
|
|
|
|
/**
|
|
* i40iw_cqp_generic_worker - generic worker for cqp
|
|
* @work: work pointer
|
|
*/
|
|
static void i40iw_cqp_generic_worker(struct work_struct *work)
|
|
{
|
|
struct i40iw_virtchnl_work_info *work_info =
|
|
&((struct virtchnl_work *)work)->work_info;
|
|
|
|
if (work_info->worker_vf_dev)
|
|
work_info->callback_fcn(work_info->worker_vf_dev);
|
|
}
|
|
|
|
/**
|
|
* i40iw_cqp_spawn_worker - spawn worket thread
|
|
* @iwdev: device struct pointer
|
|
* @work_info: work request info
|
|
* @iw_vf_idx: virtual function index
|
|
*/
|
|
void i40iw_cqp_spawn_worker(struct i40iw_sc_dev *dev,
|
|
struct i40iw_virtchnl_work_info *work_info,
|
|
u32 iw_vf_idx)
|
|
{
|
|
struct virtchnl_work *work;
|
|
struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
|
|
|
|
work = &iwdev->virtchnl_w[iw_vf_idx];
|
|
memcpy(&work->work_info, work_info, sizeof(*work_info));
|
|
INIT_WORK(&work->work, i40iw_cqp_generic_worker);
|
|
queue_work(iwdev->virtchnl_wq, &work->work);
|
|
}
|
|
|
|
/**
|
|
* i40iw_cqp_manage_hmc_fcn_worker -
|
|
* @work: work pointer for hmc info
|
|
*/
|
|
static void i40iw_cqp_manage_hmc_fcn_worker(struct work_struct *work)
|
|
{
|
|
struct i40iw_cqp_request *cqp_request =
|
|
((struct virtchnl_work *)work)->cqp_request;
|
|
struct i40iw_ccq_cqe_info ccq_cqe_info;
|
|
struct i40iw_hmc_fcn_info *hmcfcninfo =
|
|
&cqp_request->info.in.u.manage_hmc_pm.info;
|
|
struct i40iw_device *iwdev =
|
|
(struct i40iw_device *)cqp_request->info.in.u.manage_hmc_pm.dev->back_dev;
|
|
|
|
ccq_cqe_info.cqp = NULL;
|
|
ccq_cqe_info.maj_err_code = cqp_request->compl_info.maj_err_code;
|
|
ccq_cqe_info.min_err_code = cqp_request->compl_info.min_err_code;
|
|
ccq_cqe_info.op_code = cqp_request->compl_info.op_code;
|
|
ccq_cqe_info.op_ret_val = cqp_request->compl_info.op_ret_val;
|
|
ccq_cqe_info.scratch = 0;
|
|
ccq_cqe_info.error = cqp_request->compl_info.error;
|
|
hmcfcninfo->callback_fcn(cqp_request->info.in.u.manage_hmc_pm.dev,
|
|
hmcfcninfo->cqp_callback_param, &ccq_cqe_info);
|
|
i40iw_put_cqp_request(&iwdev->cqp, cqp_request);
|
|
}
|
|
|
|
/**
|
|
* i40iw_cqp_manage_hmc_fcn_callback - called function after cqp completion
|
|
* @cqp_request: cqp request info struct for hmc fun
|
|
* @unused: unused param of callback
|
|
*/
|
|
static void i40iw_cqp_manage_hmc_fcn_callback(struct i40iw_cqp_request *cqp_request,
|
|
u32 unused)
|
|
{
|
|
struct virtchnl_work *work;
|
|
struct i40iw_hmc_fcn_info *hmcfcninfo =
|
|
&cqp_request->info.in.u.manage_hmc_pm.info;
|
|
struct i40iw_device *iwdev =
|
|
(struct i40iw_device *)cqp_request->info.in.u.manage_hmc_pm.dev->
|
|
back_dev;
|
|
|
|
if (hmcfcninfo && hmcfcninfo->callback_fcn) {
|
|
i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s1\n", __func__);
|
|
atomic_inc(&cqp_request->refcount);
|
|
work = &iwdev->virtchnl_w[hmcfcninfo->iw_vf_idx];
|
|
work->cqp_request = cqp_request;
|
|
INIT_WORK(&work->work, i40iw_cqp_manage_hmc_fcn_worker);
|
|
queue_work(iwdev->virtchnl_wq, &work->work);
|
|
i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s2\n", __func__);
|
|
} else {
|
|
i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s: Something wrong\n", __func__);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* i40iw_cqp_manage_hmc_fcn_cmd - issue cqp command to manage hmc
|
|
* @dev: hardware control device structure
|
|
* @hmcfcninfo: info for hmc
|
|
*/
|
|
enum i40iw_status_code i40iw_cqp_manage_hmc_fcn_cmd(struct i40iw_sc_dev *dev,
|
|
struct i40iw_hmc_fcn_info *hmcfcninfo)
|
|
{
|
|
enum i40iw_status_code status;
|
|
struct i40iw_cqp_request *cqp_request;
|
|
struct cqp_commands_info *cqp_info;
|
|
struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
|
|
|
|
i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s\n", __func__);
|
|
cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false);
|
|
if (!cqp_request)
|
|
return I40IW_ERR_NO_MEMORY;
|
|
cqp_info = &cqp_request->info;
|
|
cqp_request->callback_fcn = i40iw_cqp_manage_hmc_fcn_callback;
|
|
cqp_request->param = hmcfcninfo;
|
|
memcpy(&cqp_info->in.u.manage_hmc_pm.info, hmcfcninfo,
|
|
sizeof(*hmcfcninfo));
|
|
cqp_info->in.u.manage_hmc_pm.dev = dev;
|
|
cqp_info->cqp_cmd = OP_MANAGE_HMC_PM_FUNC_TABLE;
|
|
cqp_info->post_sq = 1;
|
|
cqp_info->in.u.manage_hmc_pm.scratch = (uintptr_t)cqp_request;
|
|
status = i40iw_handle_cqp_op(iwdev, cqp_request);
|
|
if (status)
|
|
i40iw_pr_err("CQP-OP Manage HMC fail");
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* i40iw_cqp_query_fpm_values_cmd - send cqp command for fpm
|
|
* @iwdev: function device struct
|
|
* @values_mem: buffer for fpm
|
|
* @hmc_fn_id: function id for fpm
|
|
*/
|
|
enum i40iw_status_code i40iw_cqp_query_fpm_values_cmd(struct i40iw_sc_dev *dev,
|
|
struct i40iw_dma_mem *values_mem,
|
|
u8 hmc_fn_id)
|
|
{
|
|
enum i40iw_status_code status;
|
|
struct i40iw_cqp_request *cqp_request;
|
|
struct cqp_commands_info *cqp_info;
|
|
struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
|
|
|
|
cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
|
|
if (!cqp_request)
|
|
return I40IW_ERR_NO_MEMORY;
|
|
cqp_info = &cqp_request->info;
|
|
cqp_request->param = NULL;
|
|
cqp_info->in.u.query_fpm_values.cqp = dev->cqp;
|
|
cqp_info->in.u.query_fpm_values.fpm_values_pa = values_mem->pa;
|
|
cqp_info->in.u.query_fpm_values.fpm_values_va = values_mem->va;
|
|
cqp_info->in.u.query_fpm_values.hmc_fn_id = hmc_fn_id;
|
|
cqp_info->cqp_cmd = OP_QUERY_FPM_VALUES;
|
|
cqp_info->post_sq = 1;
|
|
cqp_info->in.u.query_fpm_values.scratch = (uintptr_t)cqp_request;
|
|
status = i40iw_handle_cqp_op(iwdev, cqp_request);
|
|
if (status)
|
|
i40iw_pr_err("CQP-OP Query FPM fail");
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* i40iw_cqp_commit_fpm_values_cmd - commit fpm values in hw
|
|
* @dev: hardware control device structure
|
|
* @values_mem: buffer with fpm values
|
|
* @hmc_fn_id: function id for fpm
|
|
*/
|
|
enum i40iw_status_code i40iw_cqp_commit_fpm_values_cmd(struct i40iw_sc_dev *dev,
|
|
struct i40iw_dma_mem *values_mem,
|
|
u8 hmc_fn_id)
|
|
{
|
|
enum i40iw_status_code status;
|
|
struct i40iw_cqp_request *cqp_request;
|
|
struct cqp_commands_info *cqp_info;
|
|
struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
|
|
|
|
cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
|
|
if (!cqp_request)
|
|
return I40IW_ERR_NO_MEMORY;
|
|
cqp_info = &cqp_request->info;
|
|
cqp_request->param = NULL;
|
|
cqp_info->in.u.commit_fpm_values.cqp = dev->cqp;
|
|
cqp_info->in.u.commit_fpm_values.fpm_values_pa = values_mem->pa;
|
|
cqp_info->in.u.commit_fpm_values.fpm_values_va = values_mem->va;
|
|
cqp_info->in.u.commit_fpm_values.hmc_fn_id = hmc_fn_id;
|
|
cqp_info->cqp_cmd = OP_COMMIT_FPM_VALUES;
|
|
cqp_info->post_sq = 1;
|
|
cqp_info->in.u.commit_fpm_values.scratch = (uintptr_t)cqp_request;
|
|
status = i40iw_handle_cqp_op(iwdev, cqp_request);
|
|
if (status)
|
|
i40iw_pr_err("CQP-OP Commit FPM fail");
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* i40iw_vf_wait_vchnl_resp - wait for channel msg
|
|
* @iwdev: function's device struct
|
|
*/
|
|
enum i40iw_status_code i40iw_vf_wait_vchnl_resp(struct i40iw_sc_dev *dev)
|
|
{
|
|
struct i40iw_device *iwdev = dev->back_dev;
|
|
int timeout_ret;
|
|
|
|
i40iw_debug(dev, I40IW_DEBUG_VIRT, "%s[%u] dev %p, iwdev %p\n",
|
|
__func__, __LINE__, dev, iwdev);
|
|
|
|
atomic_set(&iwdev->vchnl_msgs, 2);
|
|
timeout_ret = wait_event_timeout(iwdev->vchnl_waitq,
|
|
(atomic_read(&iwdev->vchnl_msgs) == 1),
|
|
I40IW_VCHNL_EVENT_TIMEOUT);
|
|
atomic_dec(&iwdev->vchnl_msgs);
|
|
if (!timeout_ret) {
|
|
i40iw_pr_err("virt channel completion timeout = 0x%x\n", timeout_ret);
|
|
atomic_set(&iwdev->vchnl_msgs, 0);
|
|
dev->vchnl_up = false;
|
|
return I40IW_ERR_TIMEOUT;
|
|
}
|
|
wake_up(&dev->vf_reqs);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* i40iw_ieq_mpa_crc_ae - generate AE for crc error
|
|
* @dev: hardware control device structure
|
|
* @qp: hardware control qp
|
|
*/
|
|
void i40iw_ieq_mpa_crc_ae(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp)
|
|
{
|
|
struct i40iw_qp_flush_info info;
|
|
struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
|
|
|
|
i40iw_debug(dev, I40IW_DEBUG_AEQ, "%s entered\n", __func__);
|
|
memset(&info, 0, sizeof(info));
|
|
info.ae_code = I40IW_AE_LLP_RECEIVED_MPA_CRC_ERROR;
|
|
info.generate_ae = true;
|
|
info.ae_source = 0x3;
|
|
(void)i40iw_hw_flush_wqes(iwdev, qp, &info, false);
|
|
}
|
|
|
|
/**
|
|
* i40iw_init_hash_desc - initialize hash for crc calculation
|
|
* @desc: cryption type
|
|
*/
|
|
enum i40iw_status_code i40iw_init_hash_desc(struct shash_desc **desc)
|
|
{
|
|
struct crypto_shash *tfm;
|
|
struct shash_desc *tdesc;
|
|
|
|
tfm = crypto_alloc_shash("crc32c", 0, 0);
|
|
if (IS_ERR(tfm))
|
|
return I40IW_ERR_MPA_CRC;
|
|
|
|
tdesc = kzalloc(sizeof(*tdesc) + crypto_shash_descsize(tfm),
|
|
GFP_KERNEL);
|
|
if (!tdesc) {
|
|
crypto_free_shash(tfm);
|
|
return I40IW_ERR_MPA_CRC;
|
|
}
|
|
tdesc->tfm = tfm;
|
|
*desc = tdesc;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* i40iw_free_hash_desc - free hash desc
|
|
* @desc: to be freed
|
|
*/
|
|
void i40iw_free_hash_desc(struct shash_desc *desc)
|
|
{
|
|
if (desc) {
|
|
crypto_free_shash(desc->tfm);
|
|
kfree(desc);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* i40iw_alloc_query_fpm_buf - allocate buffer for fpm
|
|
* @dev: hardware control device structure
|
|
* @mem: buffer ptr for fpm to be allocated
|
|
* @return: memory allocation status
|
|
*/
|
|
enum i40iw_status_code i40iw_alloc_query_fpm_buf(struct i40iw_sc_dev *dev,
|
|
struct i40iw_dma_mem *mem)
|
|
{
|
|
enum i40iw_status_code status;
|
|
struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
|
|
|
|
status = i40iw_obj_aligned_mem(iwdev, mem, I40IW_QUERY_FPM_BUF_SIZE,
|
|
I40IW_FPM_QUERY_BUF_ALIGNMENT_MASK);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* i40iw_ieq_check_mpacrc - check if mpa crc is OK
|
|
* @desc: desc for hash
|
|
* @addr: address of buffer for crc
|
|
* @length: length of buffer
|
|
* @value: value to be compared
|
|
*/
|
|
enum i40iw_status_code i40iw_ieq_check_mpacrc(struct shash_desc *desc,
|
|
void *addr,
|
|
u32 length,
|
|
u32 value)
|
|
{
|
|
u32 crc = 0;
|
|
int ret;
|
|
enum i40iw_status_code ret_code = 0;
|
|
|
|
crypto_shash_init(desc);
|
|
ret = crypto_shash_update(desc, addr, length);
|
|
if (!ret)
|
|
crypto_shash_final(desc, (u8 *)&crc);
|
|
if (crc != value) {
|
|
i40iw_pr_err("mpa crc check fail\n");
|
|
ret_code = I40IW_ERR_MPA_CRC;
|
|
}
|
|
return ret_code;
|
|
}
|
|
|
|
/**
|
|
* i40iw_ieq_get_qp - get qp based on quad in puda buffer
|
|
* @dev: hardware control device structure
|
|
* @buf: receive puda buffer on exception q
|
|
*/
|
|
struct i40iw_sc_qp *i40iw_ieq_get_qp(struct i40iw_sc_dev *dev,
|
|
struct i40iw_puda_buf *buf)
|
|
{
|
|
struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev;
|
|
struct i40iw_qp *iwqp;
|
|
struct i40iw_cm_node *cm_node;
|
|
u32 loc_addr[4], rem_addr[4];
|
|
u16 loc_port, rem_port;
|
|
struct ipv6hdr *ip6h;
|
|
struct iphdr *iph = (struct iphdr *)buf->iph;
|
|
struct tcphdr *tcph = (struct tcphdr *)buf->tcph;
|
|
|
|
if (iph->version == 4) {
|
|
memset(loc_addr, 0, sizeof(loc_addr));
|
|
loc_addr[0] = ntohl(iph->daddr);
|
|
memset(rem_addr, 0, sizeof(rem_addr));
|
|
rem_addr[0] = ntohl(iph->saddr);
|
|
} else {
|
|
ip6h = (struct ipv6hdr *)buf->iph;
|
|
i40iw_copy_ip_ntohl(loc_addr, ip6h->daddr.in6_u.u6_addr32);
|
|
i40iw_copy_ip_ntohl(rem_addr, ip6h->saddr.in6_u.u6_addr32);
|
|
}
|
|
loc_port = ntohs(tcph->dest);
|
|
rem_port = ntohs(tcph->source);
|
|
|
|
cm_node = i40iw_find_node(&iwdev->cm_core, rem_port, rem_addr, loc_port,
|
|
loc_addr, false);
|
|
if (!cm_node)
|
|
return NULL;
|
|
iwqp = cm_node->iwqp;
|
|
return &iwqp->sc_qp;
|
|
}
|
|
|
|
/**
|
|
* i40iw_ieq_update_tcpip_info - update tcpip in the buffer
|
|
* @buf: puda to update
|
|
* @length: length of buffer
|
|
* @seqnum: seq number for tcp
|
|
*/
|
|
void i40iw_ieq_update_tcpip_info(struct i40iw_puda_buf *buf, u16 length, u32 seqnum)
|
|
{
|
|
struct tcphdr *tcph;
|
|
struct iphdr *iph;
|
|
u16 iphlen;
|
|
u16 packetsize;
|
|
u8 *addr = (u8 *)buf->mem.va;
|
|
|
|
iphlen = (buf->ipv4) ? 20 : 40;
|
|
iph = (struct iphdr *)(addr + buf->maclen);
|
|
tcph = (struct tcphdr *)(addr + buf->maclen + iphlen);
|
|
packetsize = length + buf->tcphlen + iphlen;
|
|
|
|
iph->tot_len = htons(packetsize);
|
|
tcph->seq = htonl(seqnum);
|
|
}
|
|
|
|
/**
|
|
* i40iw_puda_get_tcpip_info - get tcpip info from puda buffer
|
|
* @info: to get information
|
|
* @buf: puda buffer
|
|
*/
|
|
enum i40iw_status_code i40iw_puda_get_tcpip_info(struct i40iw_puda_completion_info *info,
|
|
struct i40iw_puda_buf *buf)
|
|
{
|
|
struct iphdr *iph;
|
|
struct ipv6hdr *ip6h;
|
|
struct tcphdr *tcph;
|
|
u16 iphlen;
|
|
u16 pkt_len;
|
|
u8 *mem = (u8 *)buf->mem.va;
|
|
struct ethhdr *ethh = (struct ethhdr *)buf->mem.va;
|
|
|
|
if (ethh->h_proto == htons(0x8100)) {
|
|
info->vlan_valid = true;
|
|
buf->vlan_id = ntohs(((struct vlan_ethhdr *)ethh)->h_vlan_TCI) & VLAN_VID_MASK;
|
|
}
|
|
buf->maclen = (info->vlan_valid) ? 18 : 14;
|
|
iphlen = (info->l3proto) ? 40 : 20;
|
|
buf->ipv4 = (info->l3proto) ? false : true;
|
|
buf->iph = mem + buf->maclen;
|
|
iph = (struct iphdr *)buf->iph;
|
|
|
|
buf->tcph = buf->iph + iphlen;
|
|
tcph = (struct tcphdr *)buf->tcph;
|
|
|
|
if (buf->ipv4) {
|
|
pkt_len = ntohs(iph->tot_len);
|
|
} else {
|
|
ip6h = (struct ipv6hdr *)buf->iph;
|
|
pkt_len = ntohs(ip6h->payload_len) + iphlen;
|
|
}
|
|
|
|
buf->totallen = pkt_len + buf->maclen;
|
|
|
|
if (info->payload_len < buf->totallen - 4) {
|
|
i40iw_pr_err("payload_len = 0x%x totallen expected0x%x\n",
|
|
info->payload_len, buf->totallen);
|
|
return I40IW_ERR_INVALID_SIZE;
|
|
}
|
|
|
|
buf->tcphlen = (tcph->doff) << 2;
|
|
buf->datalen = pkt_len - iphlen - buf->tcphlen;
|
|
buf->data = (buf->datalen) ? buf->tcph + buf->tcphlen : NULL;
|
|
buf->hdrlen = buf->maclen + iphlen + buf->tcphlen;
|
|
buf->seqnum = ntohl(tcph->seq);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* i40iw_hw_stats_timeout - Stats timer-handler which updates all HW stats
|
|
* @dev: hardware control device structure
|
|
*/
|
|
static void i40iw_hw_stats_timeout(unsigned long dev)
|
|
{
|
|
struct i40iw_sc_dev *pf_dev = (struct i40iw_sc_dev *)dev;
|
|
struct i40iw_dev_pestat *pf_devstat = &pf_dev->dev_pestat;
|
|
struct i40iw_dev_pestat *vf_devstat = NULL;
|
|
u16 iw_vf_idx;
|
|
unsigned long flags;
|
|
|
|
/*PF*/
|
|
pf_devstat->ops.iw_hw_stat_read_all(pf_devstat, &pf_devstat->hw_stats);
|
|
for (iw_vf_idx = 0; iw_vf_idx < I40IW_MAX_PE_ENABLED_VF_COUNT; iw_vf_idx++) {
|
|
spin_lock_irqsave(&pf_devstat->stats_lock, flags);
|
|
if (pf_dev->vf_dev[iw_vf_idx]) {
|
|
if (pf_dev->vf_dev[iw_vf_idx]->stats_initialized) {
|
|
vf_devstat = &pf_dev->vf_dev[iw_vf_idx]->dev_pestat;
|
|
vf_devstat->ops.iw_hw_stat_read_all(vf_devstat, &vf_devstat->hw_stats);
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&pf_devstat->stats_lock, flags);
|
|
}
|
|
|
|
mod_timer(&pf_devstat->stats_timer,
|
|
jiffies + msecs_to_jiffies(STATS_TIMER_DELAY));
|
|
}
|
|
|
|
/**
|
|
* i40iw_hw_stats_start_timer - Start periodic stats timer
|
|
* @dev: hardware control device structure
|
|
*/
|
|
void i40iw_hw_stats_start_timer(struct i40iw_sc_dev *dev)
|
|
{
|
|
struct i40iw_dev_pestat *devstat = &dev->dev_pestat;
|
|
|
|
init_timer(&devstat->stats_timer);
|
|
devstat->stats_timer.function = i40iw_hw_stats_timeout;
|
|
devstat->stats_timer.data = (unsigned long)dev;
|
|
mod_timer(&devstat->stats_timer,
|
|
jiffies + msecs_to_jiffies(STATS_TIMER_DELAY));
|
|
}
|
|
|
|
/**
|
|
* i40iw_hw_stats_del_timer - Delete periodic stats timer
|
|
* @dev: hardware control device structure
|
|
*/
|
|
void i40iw_hw_stats_del_timer(struct i40iw_sc_dev *dev)
|
|
{
|
|
struct i40iw_dev_pestat *devstat = &dev->dev_pestat;
|
|
|
|
del_timer_sync(&devstat->stats_timer);
|
|
}
|