| /******************************************************************************* |
| * |
| * Copyright (c) 2015-2016 Intel Corporation. All rights reserved. |
| * |
| * This software is available to you under a choice of one of two |
| * licenses. You may choose to be licensed under the terms of the GNU |
| * General Public License (GPL) Version 2, available from the file |
| * COPYING in the main directory of this source tree, or the |
| * OpenFabrics.org BSD license below: |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| * |
| *******************************************************************************/ |
| |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/ethtool.h> |
| #include <linux/mii.h> |
| #include <linux/if_vlan.h> |
| #include <linux/crc32.h> |
| #include <linux/in.h> |
| #include <linux/ip.h> |
| #include <linux/tcp.h> |
| #include <linux/init.h> |
| #include <linux/io.h> |
| #include <asm/irq.h> |
| #include <asm/byteorder.h> |
| #include <net/netevent.h> |
| #include <net/neighbour.h> |
| #include "i40iw.h" |
| |
| /** |
| * i40iw_arp_table - manage arp table |
| * @iwdev: iwarp device |
| * @ip_addr: ip address for device |
| * @mac_addr: mac address ptr |
| * @action: modify, delete or add |
| */ |
| int i40iw_arp_table(struct i40iw_device *iwdev, |
| u32 *ip_addr, |
| bool ipv4, |
| u8 *mac_addr, |
| u32 action) |
| { |
| int arp_index; |
| int err; |
| u32 ip[4]; |
| |
| if (ipv4) { |
| memset(ip, 0, sizeof(ip)); |
| ip[0] = *ip_addr; |
| } else { |
| memcpy(ip, ip_addr, sizeof(ip)); |
| } |
| |
| for (arp_index = 0; (u32)arp_index < iwdev->arp_table_size; arp_index++) |
| if (memcmp(iwdev->arp_table[arp_index].ip_addr, ip, sizeof(ip)) == 0) |
| break; |
| switch (action) { |
| case I40IW_ARP_ADD: |
| if (arp_index != iwdev->arp_table_size) |
| return -1; |
| |
| arp_index = 0; |
| err = i40iw_alloc_resource(iwdev, iwdev->allocated_arps, |
| iwdev->arp_table_size, |
| (u32 *)&arp_index, |
| &iwdev->next_arp_index); |
| |
| if (err) |
| return err; |
| |
| memcpy(iwdev->arp_table[arp_index].ip_addr, ip, sizeof(ip)); |
| ether_addr_copy(iwdev->arp_table[arp_index].mac_addr, mac_addr); |
| break; |
| case I40IW_ARP_RESOLVE: |
| if (arp_index == iwdev->arp_table_size) |
| return -1; |
| break; |
| case I40IW_ARP_DELETE: |
| if (arp_index == iwdev->arp_table_size) |
| return -1; |
| memset(iwdev->arp_table[arp_index].ip_addr, 0, |
| sizeof(iwdev->arp_table[arp_index].ip_addr)); |
| eth_zero_addr(iwdev->arp_table[arp_index].mac_addr); |
| i40iw_free_resource(iwdev, iwdev->allocated_arps, arp_index); |
| break; |
| default: |
| return -1; |
| } |
| return arp_index; |
| } |
| |
| /** |
| * i40iw_wr32 - write 32 bits to hw register |
| * @hw: hardware information including registers |
| * @reg: register offset |
| * @value: vvalue to write to register |
| */ |
| inline void i40iw_wr32(struct i40iw_hw *hw, u32 reg, u32 value) |
| { |
| writel(value, hw->hw_addr + reg); |
| } |
| |
| /** |
| * i40iw_rd32 - read a 32 bit hw register |
| * @hw: hardware information including registers |
| * @reg: register offset |
| * |
| * Return value of register content |
| */ |
| inline u32 i40iw_rd32(struct i40iw_hw *hw, u32 reg) |
| { |
| return readl(hw->hw_addr + reg); |
| } |
| |
| /** |
| * i40iw_inetaddr_event - system notifier for netdev events |
| * @notfier: not used |
| * @event: event for notifier |
| * @ptr: if address |
| */ |
| int i40iw_inetaddr_event(struct notifier_block *notifier, |
| unsigned long event, |
| void *ptr) |
| { |
| struct in_ifaddr *ifa = ptr; |
| struct net_device *event_netdev = ifa->ifa_dev->dev; |
| struct net_device *netdev; |
| struct net_device *upper_dev; |
| struct i40iw_device *iwdev; |
| struct i40iw_handler *hdl; |
| u32 local_ipaddr; |
| u32 action = I40IW_ARP_ADD; |
| |
| hdl = i40iw_find_netdev(event_netdev); |
| if (!hdl) |
| return NOTIFY_DONE; |
| |
| iwdev = &hdl->device; |
| if (iwdev->init_state < IP_ADDR_REGISTERED || iwdev->closing) |
| return NOTIFY_DONE; |
| |
| netdev = iwdev->ldev->netdev; |
| upper_dev = netdev_master_upper_dev_get(netdev); |
| if (netdev != event_netdev) |
| return NOTIFY_DONE; |
| |
| if (upper_dev) { |
| struct in_device *in; |
| |
| rcu_read_lock(); |
| in = __in_dev_get_rcu(upper_dev); |
| local_ipaddr = ntohl(in->ifa_list->ifa_address); |
| rcu_read_unlock(); |
| } else { |
| local_ipaddr = ntohl(ifa->ifa_address); |
| } |
| switch (event) { |
| case NETDEV_DOWN: |
| action = I40IW_ARP_DELETE; |
| /* Fall through */ |
| case NETDEV_UP: |
| /* Fall through */ |
| case NETDEV_CHANGEADDR: |
| i40iw_manage_arp_cache(iwdev, |
| netdev->dev_addr, |
| &local_ipaddr, |
| true, |
| action); |
| i40iw_if_notify(iwdev, netdev, &local_ipaddr, true, |
| (action == I40IW_ARP_ADD) ? true : false); |
| break; |
| default: |
| break; |
| } |
| return NOTIFY_DONE; |
| } |
| |
| /** |
| * i40iw_inet6addr_event - system notifier for ipv6 netdev events |
| * @notfier: not used |
| * @event: event for notifier |
| * @ptr: if address |
| */ |
| int i40iw_inet6addr_event(struct notifier_block *notifier, |
| unsigned long event, |
| void *ptr) |
| { |
| struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr; |
| struct net_device *event_netdev = ifa->idev->dev; |
| struct net_device *netdev; |
| struct i40iw_device *iwdev; |
| struct i40iw_handler *hdl; |
| u32 local_ipaddr6[4]; |
| u32 action = I40IW_ARP_ADD; |
| |
| hdl = i40iw_find_netdev(event_netdev); |
| if (!hdl) |
| return NOTIFY_DONE; |
| |
| iwdev = &hdl->device; |
| if (iwdev->init_state < IP_ADDR_REGISTERED || iwdev->closing) |
| return NOTIFY_DONE; |
| |
| netdev = iwdev->ldev->netdev; |
| if (netdev != event_netdev) |
| return NOTIFY_DONE; |
| |
| i40iw_copy_ip_ntohl(local_ipaddr6, ifa->addr.in6_u.u6_addr32); |
| switch (event) { |
| case NETDEV_DOWN: |
| action = I40IW_ARP_DELETE; |
| /* Fall through */ |
| case NETDEV_UP: |
| /* Fall through */ |
| case NETDEV_CHANGEADDR: |
| i40iw_manage_arp_cache(iwdev, |
| netdev->dev_addr, |
| local_ipaddr6, |
| false, |
| action); |
| i40iw_if_notify(iwdev, netdev, local_ipaddr6, false, |
| (action == I40IW_ARP_ADD) ? true : false); |
| break; |
| default: |
| break; |
| } |
| return NOTIFY_DONE; |
| } |
| |
| /** |
| * i40iw_net_event - system notifier for net events |
| * @notfier: not used |
| * @event: event for notifier |
| * @ptr: neighbor |
| */ |
| int i40iw_net_event(struct notifier_block *notifier, unsigned long event, void *ptr) |
| { |
| struct neighbour *neigh = ptr; |
| struct i40iw_device *iwdev; |
| struct i40iw_handler *iwhdl; |
| __be32 *p; |
| u32 local_ipaddr[4]; |
| |
| switch (event) { |
| case NETEVENT_NEIGH_UPDATE: |
| iwhdl = i40iw_find_netdev((struct net_device *)neigh->dev); |
| if (!iwhdl) |
| return NOTIFY_DONE; |
| iwdev = &iwhdl->device; |
| if (iwdev->init_state < IP_ADDR_REGISTERED || iwdev->closing) |
| return NOTIFY_DONE; |
| p = (__be32 *)neigh->primary_key; |
| i40iw_copy_ip_ntohl(local_ipaddr, p); |
| if (neigh->nud_state & NUD_VALID) { |
| i40iw_manage_arp_cache(iwdev, |
| neigh->ha, |
| local_ipaddr, |
| false, |
| I40IW_ARP_ADD); |
| |
| } else { |
| i40iw_manage_arp_cache(iwdev, |
| neigh->ha, |
| local_ipaddr, |
| false, |
| I40IW_ARP_DELETE); |
| } |
| break; |
| default: |
| break; |
| } |
| return NOTIFY_DONE; |
| } |
| |
| /** |
| * i40iw_get_cqp_request - get cqp struct |
| * @cqp: device cqp ptr |
| * @wait: cqp to be used in wait mode |
| */ |
| struct i40iw_cqp_request *i40iw_get_cqp_request(struct i40iw_cqp *cqp, bool wait) |
| { |
| 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); |
| 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_free_qp - callback after destroy cqp completes |
| * @cqp_request: cqp request for destroy qp |
| * @num: not used |
| */ |
| static void i40iw_free_qp(struct i40iw_cqp_request *cqp_request, u32 num) |
| { |
| struct i40iw_sc_qp *qp = (struct i40iw_sc_qp *)cqp_request->param; |
| struct i40iw_qp *iwqp = (struct i40iw_qp *)qp->back_qp; |
| struct i40iw_device *iwdev; |
| u32 qp_num = iwqp->ibqp.qp_num; |
| |
| iwdev = iwqp->iwdev; |
| |
| i40iw_rem_pdusecount(iwqp->iwpd, iwdev); |
| i40iw_free_qp_resources(iwdev, iwqp, qp_num); |
| i40iw_rem_devusecount(iwdev); |
| } |
| |
| /** |
| * 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); |
| 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) |
| return; |
| |
| i40iw_rem_pdusecount(iwqp->iwpd, iwdev); |
| i40iw_free_qp_resources(iwdev, iwqp, qp_num); |
| i40iw_rem_devusecount(iwdev); |
| } |
| |
| /** |
| * 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_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_imeout - timeout happened |
| * @context: 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_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_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_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 |
| * @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_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_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) { |
| 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 |
| * @vsi: 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); |
| } |