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1518 lines
40 KiB
1518 lines
40 KiB
/******************************************************************************* |
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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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|
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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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/** |
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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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* @ipv4: flag indicating IPv4 when true |
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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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|
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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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|
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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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|
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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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|
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if (err) |
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return err; |
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|
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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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/** |
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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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/** |
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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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/** |
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* i40iw_inetaddr_event - system notifier for ipv4 addr events |
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* @notifier: 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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u32 action = I40IW_ARP_ADD; |
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|
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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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if (iwdev->init_state < IP_ADDR_REGISTERED || iwdev->closing) |
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return NOTIFY_DONE; |
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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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|
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if (upper_dev) { |
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struct in_device *in; |
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|
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rcu_read_lock(); |
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in = __in_dev_get_rcu(upper_dev); |
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|
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local_ipaddr = 0; |
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if (in) { |
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struct in_ifaddr *ifa; |
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|
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ifa = rcu_dereference(in->ifa_list); |
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if (ifa) |
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local_ipaddr = ntohl(ifa->ifa_address); |
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} |
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|
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rcu_read_unlock(); |
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} else { |
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local_ipaddr = ntohl(ifa->ifa_address); |
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} |
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switch (event) { |
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case NETDEV_DOWN: |
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action = I40IW_ARP_DELETE; |
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fallthrough; |
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case NETDEV_UP: |
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case NETDEV_CHANGEADDR: |
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|
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/* Just skip if no need to handle ARP cache */ |
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if (!local_ipaddr) |
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break; |
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|
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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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action); |
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i40iw_if_notify(iwdev, netdev, &local_ipaddr, true, |
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(action == I40IW_ARP_ADD) ? true : false); |
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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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/** |
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* i40iw_inet6addr_event - system notifier for ipv6 addr events |
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* @notifier: 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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u32 action = I40IW_ARP_ADD; |
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|
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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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if (iwdev->init_state < IP_ADDR_REGISTERED || iwdev->closing) |
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return NOTIFY_DONE; |
|
|
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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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i40iw_copy_ip_ntohl(local_ipaddr6, ifa->addr.in6_u.u6_addr32); |
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switch (event) { |
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case NETDEV_DOWN: |
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action = I40IW_ARP_DELETE; |
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fallthrough; |
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case NETDEV_UP: |
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case NETDEV_CHANGEADDR: |
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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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action); |
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i40iw_if_notify(iwdev, netdev, local_ipaddr6, false, |
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(action == I40IW_ARP_ADD) ? true : false); |
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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 netevents |
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* @notifier: 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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if (iwdev->init_state < IP_ADDR_REGISTERED || iwdev->closing) |
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return NOTIFY_DONE; |
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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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|
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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_netdevice_event - system notifier for netdev events |
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* @notifier: not used |
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* @event: event for notifier |
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* @ptr: netdev |
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*/ |
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int i40iw_netdevice_event(struct notifier_block *notifier, |
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unsigned long event, |
|
void *ptr) |
|
{ |
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struct net_device *event_netdev; |
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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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|
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event_netdev = netdev_notifier_info_to_dev(ptr); |
|
|
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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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if (iwdev->init_state < RDMA_DEV_REGISTERED || iwdev->closing) |
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return NOTIFY_DONE; |
|
|
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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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iwdev->iw_status = 1; |
|
|
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switch (event) { |
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case NETDEV_DOWN: |
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iwdev->iw_status = 0; |
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fallthrough; |
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case NETDEV_UP: |
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i40iw_port_ibevent(iwdev); |
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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; |
|
} |
|
|
|
/** |
|
* i40iw_get_cqp_request - get cqp struct |
|
* @cqp: device cqp ptr |
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* @wait: cqp to be used in wait mode |
|
*/ |
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struct i40iw_cqp_request *i40iw_get_cqp_request(struct i40iw_cqp *cqp, bool wait) |
|
{ |
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struct i40iw_cqp_request *cqp_request = NULL; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&cqp->req_lock, flags); |
|
if (!list_empty(&cqp->cqp_avail_reqs)) { |
|
cqp_request = list_entry(cqp->cqp_avail_reqs.next, |
|
struct i40iw_cqp_request, list); |
|
list_del_init(&cqp_request->list); |
|
} |
|
spin_unlock_irqrestore(&cqp->req_lock, flags); |
|
if (!cqp_request) { |
|
cqp_request = kzalloc(sizeof(*cqp_request), GFP_ATOMIC); |
|
if (cqp_request) { |
|
cqp_request->dynamic = true; |
|
INIT_LIST_HEAD(&cqp_request->list); |
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init_waitqueue_head(&cqp_request->waitq); |
|
} |
|
} |
|
if (!cqp_request) { |
|
i40iw_pr_err("CQP Request Fail: No Memory"); |
|
return NULL; |
|
} |
|
|
|
if (wait) { |
|
atomic_set(&cqp_request->refcount, 2); |
|
cqp_request->waiting = true; |
|
} else { |
|
atomic_set(&cqp_request->refcount, 1); |
|
} |
|
return cqp_request; |
|
} |
|
|
|
/** |
|
* i40iw_free_cqp_request - free cqp request |
|
* @cqp: cqp ptr |
|
* @cqp_request: to be put back in cqp list |
|
*/ |
|
void i40iw_free_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp_request) |
|
{ |
|
struct i40iw_device *iwdev = container_of(cqp, struct i40iw_device, cqp); |
|
unsigned long flags; |
|
|
|
if (cqp_request->dynamic) { |
|
kfree(cqp_request); |
|
} else { |
|
cqp_request->request_done = false; |
|
cqp_request->callback_fcn = NULL; |
|
cqp_request->waiting = false; |
|
|
|
spin_lock_irqsave(&cqp->req_lock, flags); |
|
list_add_tail(&cqp_request->list, &cqp->cqp_avail_reqs); |
|
spin_unlock_irqrestore(&cqp->req_lock, flags); |
|
} |
|
wake_up(&iwdev->close_wq); |
|
} |
|
|
|
/** |
|
* i40iw_put_cqp_request - dec ref count and free if 0 |
|
* @cqp: cqp ptr |
|
* @cqp_request: to be put back in cqp list |
|
*/ |
|
void i40iw_put_cqp_request(struct i40iw_cqp *cqp, |
|
struct i40iw_cqp_request *cqp_request) |
|
{ |
|
if (atomic_dec_and_test(&cqp_request->refcount)) |
|
i40iw_free_cqp_request(cqp, cqp_request); |
|
} |
|
|
|
/** |
|
* i40iw_free_pending_cqp_request -free pending cqp request objs |
|
* @cqp: cqp ptr |
|
* @cqp_request: to be put back in cqp list |
|
*/ |
|
static void i40iw_free_pending_cqp_request(struct i40iw_cqp *cqp, |
|
struct i40iw_cqp_request *cqp_request) |
|
{ |
|
struct i40iw_device *iwdev = container_of(cqp, struct i40iw_device, cqp); |
|
|
|
if (cqp_request->waiting) { |
|
cqp_request->compl_info.error = true; |
|
cqp_request->request_done = true; |
|
wake_up(&cqp_request->waitq); |
|
} |
|
i40iw_put_cqp_request(cqp, cqp_request); |
|
wait_event_timeout(iwdev->close_wq, |
|
!atomic_read(&cqp_request->refcount), |
|
1000); |
|
} |
|
|
|
/** |
|
* i40iw_cleanup_pending_cqp_op - clean-up cqp with no completions |
|
* @iwdev: iwarp device |
|
*/ |
|
void i40iw_cleanup_pending_cqp_op(struct i40iw_device *iwdev) |
|
{ |
|
struct i40iw_sc_dev *dev = &iwdev->sc_dev; |
|
struct i40iw_cqp *cqp = &iwdev->cqp; |
|
struct i40iw_cqp_request *cqp_request = NULL; |
|
struct cqp_commands_info *pcmdinfo = NULL; |
|
u32 i, pending_work, wqe_idx; |
|
|
|
pending_work = I40IW_RING_WORK_AVAILABLE(cqp->sc_cqp.sq_ring); |
|
wqe_idx = I40IW_RING_GETCURRENT_TAIL(cqp->sc_cqp.sq_ring); |
|
for (i = 0; i < pending_work; i++) { |
|
cqp_request = (struct i40iw_cqp_request *)(unsigned long)cqp->scratch_array[wqe_idx]; |
|
if (cqp_request) |
|
i40iw_free_pending_cqp_request(cqp, cqp_request); |
|
wqe_idx = (wqe_idx + 1) % I40IW_RING_GETSIZE(cqp->sc_cqp.sq_ring); |
|
} |
|
|
|
while (!list_empty(&dev->cqp_cmd_head)) { |
|
pcmdinfo = (struct cqp_commands_info *)i40iw_remove_head(&dev->cqp_cmd_head); |
|
cqp_request = container_of(pcmdinfo, struct i40iw_cqp_request, info); |
|
if (cqp_request) |
|
i40iw_free_pending_cqp_request(cqp, cqp_request); |
|
} |
|
} |
|
|
|
/** |
|
* i40iw_wait_event - wait for completion |
|
* @iwdev: iwarp device |
|
* @cqp_request: cqp request to wait |
|
*/ |
|
static int i40iw_wait_event(struct i40iw_device *iwdev, |
|
struct i40iw_cqp_request *cqp_request) |
|
{ |
|
struct cqp_commands_info *info = &cqp_request->info; |
|
struct i40iw_cqp *iwcqp = &iwdev->cqp; |
|
struct i40iw_cqp_timeout cqp_timeout; |
|
bool cqp_error = false; |
|
int err_code = 0; |
|
memset(&cqp_timeout, 0, sizeof(cqp_timeout)); |
|
cqp_timeout.compl_cqp_cmds = iwdev->sc_dev.cqp_cmd_stats[OP_COMPLETED_COMMANDS]; |
|
do { |
|
if (wait_event_timeout(cqp_request->waitq, |
|
cqp_request->request_done, CQP_COMPL_WAIT_TIME)) |
|
break; |
|
|
|
i40iw_check_cqp_progress(&cqp_timeout, &iwdev->sc_dev); |
|
|
|
if (cqp_timeout.count < CQP_TIMEOUT_THRESHOLD) |
|
continue; |
|
|
|
i40iw_pr_err("error cqp command 0x%x timed out", info->cqp_cmd); |
|
err_code = -ETIME; |
|
if (!iwdev->reset) { |
|
iwdev->reset = true; |
|
i40iw_request_reset(iwdev); |
|
} |
|
goto done; |
|
} while (1); |
|
cqp_error = cqp_request->compl_info.error; |
|
if (cqp_error) { |
|
i40iw_pr_err("error cqp command 0x%x completion maj = 0x%x min=0x%x\n", |
|
info->cqp_cmd, cqp_request->compl_info.maj_err_code, |
|
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; |
|
enum i40iw_status_code status; |
|
struct cqp_commands_info *info = &cqp_request->info; |
|
int err_code = 0; |
|
|
|
if (iwdev->reset) { |
|
i40iw_free_cqp_request(&iwdev->cqp, cqp_request); |
|
return I40IW_ERR_CQP_COMPL_ERROR; |
|
} |
|
|
|
status = i40iw_process_cqp_cmd(dev, info); |
|
if (status) { |
|
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_devusecount - add dev refcount |
|
* @iwdev: dev for refcount |
|
*/ |
|
void i40iw_add_devusecount(struct i40iw_device *iwdev) |
|
{ |
|
atomic64_inc(&iwdev->use_count); |
|
} |
|
|
|
/** |
|
* i40iw_rem_devusecount - decrement refcount for dev |
|
* @iwdev: device |
|
*/ |
|
void i40iw_rem_devusecount(struct i40iw_device *iwdev) |
|
{ |
|
if (!atomic64_dec_and_test(&iwdev->use_count)) |
|
return; |
|
wake_up(&iwdev->close_wq); |
|
} |
|
|
|
/** |
|
* 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); |
|
} |
|
|
|
/** |
|
* i40iw_qp_add_ref - add refcount for qp |
|
* @ibqp: iqarp qp |
|
*/ |
|
void i40iw_qp_add_ref(struct ib_qp *ibqp) |
|
{ |
|
struct i40iw_qp *iwqp = (struct i40iw_qp *)ibqp; |
|
|
|
refcount_inc(&iwqp->refcount); |
|
} |
|
|
|
/** |
|
* i40iw_qp_rem_ref - rem refcount for qp and free if 0 |
|
* @ibqp: iqarp qp |
|
*/ |
|
void i40iw_qp_rem_ref(struct ib_qp *ibqp) |
|
{ |
|
struct i40iw_qp *iwqp; |
|
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 (!refcount_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); |
|
complete(&iwqp->free_qp); |
|
|
|
} |
|
|
|
/** |
|
* 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 |
|
* @desc: identifying string |
|
* @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 = hw->pcidev; |
|
|
|
if (!mem) |
|
return I40IW_ERR_PARAM; |
|
mem->size = ALIGN(size, alignment); |
|
mem->va = dma_alloc_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 = hw->pcidev; |
|
|
|
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 |
|
* @sdinfo: 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_qp_suspend_resume - cqp command for suspend/resume |
|
* @dev: hardware control device structure |
|
* @qp: hardware control qp |
|
* @suspend: flag if suspend or resume |
|
*/ |
|
void i40iw_qp_suspend_resume(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp, bool suspend) |
|
{ |
|
struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; |
|
struct i40iw_cqp_request *cqp_request; |
|
struct i40iw_sc_cqp *cqp = dev->cqp; |
|
struct cqp_commands_info *cqp_info; |
|
enum i40iw_status_code status; |
|
|
|
cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false); |
|
if (!cqp_request) |
|
return; |
|
|
|
cqp_info = &cqp_request->info; |
|
cqp_info->cqp_cmd = (suspend) ? OP_SUSPEND : OP_RESUME; |
|
cqp_info->in.u.suspend_resume.cqp = cqp; |
|
cqp_info->in.u.suspend_resume.qp = qp; |
|
cqp_info->in.u.suspend_resume.scratch = (uintptr_t)cqp_request; |
|
status = i40iw_handle_cqp_op(iwdev, cqp_request); |
|
if (status) |
|
i40iw_pr_err("CQP-OP QP Suspend/Resume fail"); |
|
} |
|
|
|
/** |
|
* 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_timeout - timeout happened |
|
* @t: points to iwarp qp |
|
*/ |
|
static void i40iw_terminate_timeout(struct timer_list *t) |
|
{ |
|
struct i40iw_qp *iwqp = from_timer(iwqp, t, terminate_timer); |
|
struct i40iw_sc_qp *qp = (struct i40iw_sc_qp *)&iwqp->sc_qp; |
|
|
|
i40iw_terminate_done(qp, 1); |
|
i40iw_qp_rem_ref(&iwqp->ibqp); |
|
} |
|
|
|
/** |
|
* 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; |
|
i40iw_qp_add_ref(&iwqp->ibqp); |
|
timer_setup(&iwqp->terminate_timer, i40iw_terminate_timeout, 0); |
|
iwqp->terminate_timer.expires = jiffies + HZ; |
|
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; |
|
if (del_timer(&iwqp->terminate_timer)) |
|
i40iw_qp_rem_ref(&iwqp->ibqp); |
|
} |
|
|
|
/** |
|
* 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 |
|
* @dev: 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 |
|
* @dev: 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 |
|
* @dev: 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_cqp_cq_create_cmd - create a cq for the cqp |
|
* @dev: device pointer |
|
* @cq: pointer to created cq |
|
*/ |
|
enum i40iw_status_code i40iw_cqp_cq_create_cmd(struct i40iw_sc_dev *dev, |
|
struct i40iw_sc_cq *cq) |
|
{ |
|
struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; |
|
struct i40iw_cqp *iwcqp = &iwdev->cqp; |
|
struct i40iw_cqp_request *cqp_request; |
|
struct cqp_commands_info *cqp_info; |
|
enum i40iw_status_code status; |
|
|
|
cqp_request = i40iw_get_cqp_request(iwcqp, true); |
|
if (!cqp_request) |
|
return I40IW_ERR_NO_MEMORY; |
|
|
|
cqp_info = &cqp_request->info; |
|
cqp_info->cqp_cmd = OP_CQ_CREATE; |
|
cqp_info->post_sq = 1; |
|
cqp_info->in.u.cq_create.cq = cq; |
|
cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request; |
|
status = i40iw_handle_cqp_op(iwdev, cqp_request); |
|
if (status) |
|
i40iw_pr_err("CQP-OP Create QP fail"); |
|
|
|
return status; |
|
} |
|
|
|
/** |
|
* i40iw_cqp_qp_create_cmd - create a qp for the cqp |
|
* @dev: device pointer |
|
* @qp: pointer to created qp |
|
*/ |
|
enum i40iw_status_code i40iw_cqp_qp_create_cmd(struct i40iw_sc_dev *dev, |
|
struct i40iw_sc_qp *qp) |
|
{ |
|
struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; |
|
struct i40iw_cqp *iwcqp = &iwdev->cqp; |
|
struct i40iw_cqp_request *cqp_request; |
|
struct cqp_commands_info *cqp_info; |
|
struct i40iw_create_qp_info *qp_info; |
|
enum i40iw_status_code status; |
|
|
|
cqp_request = i40iw_get_cqp_request(iwcqp, true); |
|
if (!cqp_request) |
|
return I40IW_ERR_NO_MEMORY; |
|
|
|
cqp_info = &cqp_request->info; |
|
qp_info = &cqp_request->info.in.u.qp_create.info; |
|
|
|
memset(qp_info, 0, sizeof(*qp_info)); |
|
|
|
qp_info->cq_num_valid = true; |
|
qp_info->next_iwarp_state = I40IW_QP_STATE_RTS; |
|
|
|
cqp_info->cqp_cmd = OP_QP_CREATE; |
|
cqp_info->post_sq = 1; |
|
cqp_info->in.u.qp_create.qp = qp; |
|
cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request; |
|
status = i40iw_handle_cqp_op(iwdev, cqp_request); |
|
if (status) |
|
i40iw_pr_err("CQP-OP QP create fail"); |
|
return status; |
|
} |
|
|
|
/** |
|
* i40iw_cqp_cq_destroy_cmd - destroy the cqp cq |
|
* @dev: device pointer |
|
* @cq: pointer to cq |
|
*/ |
|
void i40iw_cqp_cq_destroy_cmd(struct i40iw_sc_dev *dev, struct i40iw_sc_cq *cq) |
|
{ |
|
struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; |
|
|
|
i40iw_cq_wq_destroy(iwdev, cq); |
|
} |
|
|
|
/** |
|
* i40iw_cqp_qp_destroy_cmd - destroy the cqp |
|
* @dev: device pointer |
|
* @qp: pointer to qp |
|
*/ |
|
void i40iw_cqp_qp_destroy_cmd(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp) |
|
{ |
|
struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; |
|
struct i40iw_cqp *iwcqp = &iwdev->cqp; |
|
struct i40iw_cqp_request *cqp_request; |
|
struct cqp_commands_info *cqp_info; |
|
enum i40iw_status_code status; |
|
|
|
cqp_request = i40iw_get_cqp_request(iwcqp, true); |
|
if (!cqp_request) |
|
return; |
|
|
|
cqp_info = &cqp_request->info; |
|
memset(cqp_info, 0, sizeof(*cqp_info)); |
|
|
|
cqp_info->cqp_cmd = OP_QP_DESTROY; |
|
cqp_info->post_sq = 1; |
|
cqp_info->in.u.qp_destroy.qp = 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 QP_DESTROY fail"); |
|
} |
|
|
|
|
|
/** |
|
* 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_gen_ae_info info; |
|
struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; |
|
|
|
i40iw_debug(dev, I40IW_DEBUG_AEQ, "%s entered\n", __func__); |
|
info.ae_code = I40IW_AE_LLP_RECEIVED_MPA_CRC_ERROR; |
|
info.ae_source = I40IW_AE_SOURCE_RQ; |
|
i40iw_gen_ae(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, true); |
|
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) { |
|
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 |
|
* @t: Timer context containing pointer to the vsi structure |
|
*/ |
|
static void i40iw_hw_stats_timeout(struct timer_list *t) |
|
{ |
|
struct i40iw_vsi_pestat *pf_devstat = from_timer(pf_devstat, t, |
|
stats_timer); |
|
struct i40iw_sc_vsi *sc_vsi = pf_devstat->vsi; |
|
struct i40iw_sc_dev *pf_dev = sc_vsi->dev; |
|
struct i40iw_vsi_pestat *vf_devstat = NULL; |
|
u16 iw_vf_idx; |
|
unsigned long flags; |
|
|
|
/*PF*/ |
|
i40iw_hw_stats_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->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]->pestat; |
|
i40iw_hw_stats_read_all(vf_devstat, &vf_devstat->hw_stats); |
|
} |
|
} |
|
spin_unlock_irqrestore(&pf_devstat->lock, flags); |
|
} |
|
|
|
mod_timer(&pf_devstat->stats_timer, |
|
jiffies + msecs_to_jiffies(STATS_TIMER_DELAY)); |
|
} |
|
|
|
/** |
|
* i40iw_hw_stats_start_timer - Start periodic stats timer |
|
* @vsi: pointer to the vsi structure |
|
*/ |
|
void i40iw_hw_stats_start_timer(struct i40iw_sc_vsi *vsi) |
|
{ |
|
struct i40iw_vsi_pestat *devstat = vsi->pestat; |
|
|
|
timer_setup(&devstat->stats_timer, i40iw_hw_stats_timeout, 0); |
|
mod_timer(&devstat->stats_timer, |
|
jiffies + msecs_to_jiffies(STATS_TIMER_DELAY)); |
|
} |
|
|
|
/** |
|
* i40iw_hw_stats_stop_timer - Delete periodic stats timer |
|
* @vsi: pointer to the vsi structure |
|
*/ |
|
void i40iw_hw_stats_stop_timer(struct i40iw_sc_vsi *vsi) |
|
{ |
|
struct i40iw_vsi_pestat *devstat = vsi->pestat; |
|
|
|
del_timer_sync(&devstat->stats_timer); |
|
}
|
|
|