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-rw-r--r--drivers/infiniband/hw/irdma/utils.c2656
1 files changed, 2656 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/irdma/utils.c b/drivers/infiniband/hw/irdma/utils.c
new file mode 100644
index 000000000..8c7617776
--- /dev/null
+++ b/drivers/infiniband/hw/irdma/utils.c
@@ -0,0 +1,2656 @@
+// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
+/* Copyright (c) 2015 - 2021 Intel Corporation */
+#include "main.h"
+
+/**
+ * irdma_arp_table -manage arp table
+ * @rf: RDMA PCI function
+ * @ip_addr: ip address for device
+ * @ipv4: IPv4 flag
+ * @mac_addr: mac address ptr
+ * @action: modify, delete or add
+ */
+int irdma_arp_table(struct irdma_pci_f *rf, u32 *ip_addr, bool ipv4,
+ const u8 *mac_addr, u32 action)
+{
+ unsigned long flags;
+ int arp_index;
+ u32 ip[4] = {};
+
+ if (ipv4)
+ ip[0] = *ip_addr;
+ else
+ memcpy(ip, ip_addr, sizeof(ip));
+
+ spin_lock_irqsave(&rf->arp_lock, flags);
+ for (arp_index = 0; (u32)arp_index < rf->arp_table_size; arp_index++) {
+ if (!memcmp(rf->arp_table[arp_index].ip_addr, ip, sizeof(ip)))
+ break;
+ }
+
+ switch (action) {
+ case IRDMA_ARP_ADD:
+ if (arp_index != rf->arp_table_size) {
+ arp_index = -1;
+ break;
+ }
+
+ arp_index = 0;
+ if (irdma_alloc_rsrc(rf, rf->allocated_arps, rf->arp_table_size,
+ (u32 *)&arp_index, &rf->next_arp_index)) {
+ arp_index = -1;
+ break;
+ }
+
+ memcpy(rf->arp_table[arp_index].ip_addr, ip,
+ sizeof(rf->arp_table[arp_index].ip_addr));
+ ether_addr_copy(rf->arp_table[arp_index].mac_addr, mac_addr);
+ break;
+ case IRDMA_ARP_RESOLVE:
+ if (arp_index == rf->arp_table_size)
+ arp_index = -1;
+ break;
+ case IRDMA_ARP_DELETE:
+ if (arp_index == rf->arp_table_size) {
+ arp_index = -1;
+ break;
+ }
+
+ memset(rf->arp_table[arp_index].ip_addr, 0,
+ sizeof(rf->arp_table[arp_index].ip_addr));
+ eth_zero_addr(rf->arp_table[arp_index].mac_addr);
+ irdma_free_rsrc(rf, rf->allocated_arps, arp_index);
+ break;
+ default:
+ arp_index = -1;
+ break;
+ }
+
+ spin_unlock_irqrestore(&rf->arp_lock, flags);
+ return arp_index;
+}
+
+/**
+ * irdma_add_arp - add a new arp entry if needed
+ * @rf: RDMA function
+ * @ip: IP address
+ * @ipv4: IPv4 flag
+ * @mac: MAC address
+ */
+int irdma_add_arp(struct irdma_pci_f *rf, u32 *ip, bool ipv4, const u8 *mac)
+{
+ int arpidx;
+
+ arpidx = irdma_arp_table(rf, &ip[0], ipv4, NULL, IRDMA_ARP_RESOLVE);
+ if (arpidx >= 0) {
+ if (ether_addr_equal(rf->arp_table[arpidx].mac_addr, mac))
+ return arpidx;
+
+ irdma_manage_arp_cache(rf, rf->arp_table[arpidx].mac_addr, ip,
+ ipv4, IRDMA_ARP_DELETE);
+ }
+
+ irdma_manage_arp_cache(rf, mac, ip, ipv4, IRDMA_ARP_ADD);
+
+ return irdma_arp_table(rf, ip, ipv4, NULL, IRDMA_ARP_RESOLVE);
+}
+
+/**
+ * wr32 - write 32 bits to hw register
+ * @hw: hardware information including registers
+ * @reg: register offset
+ * @val: value to write to register
+ */
+inline void wr32(struct irdma_hw *hw, u32 reg, u32 val)
+{
+ writel(val, hw->hw_addr + reg);
+}
+
+/**
+ * rd32 - read a 32 bit hw register
+ * @hw: hardware information including registers
+ * @reg: register offset
+ *
+ * Return value of register content
+ */
+inline u32 rd32(struct irdma_hw *hw, u32 reg)
+{
+ return readl(hw->hw_addr + reg);
+}
+
+/**
+ * rd64 - read a 64 bit hw register
+ * @hw: hardware information including registers
+ * @reg: register offset
+ *
+ * Return value of register content
+ */
+inline u64 rd64(struct irdma_hw *hw, u32 reg)
+{
+ return readq(hw->hw_addr + reg);
+}
+
+static void irdma_gid_change_event(struct ib_device *ibdev)
+{
+ struct ib_event ib_event;
+
+ ib_event.event = IB_EVENT_GID_CHANGE;
+ ib_event.device = ibdev;
+ ib_event.element.port_num = 1;
+ ib_dispatch_event(&ib_event);
+}
+
+/**
+ * irdma_inetaddr_event - system notifier for ipv4 addr events
+ * @notifier: not used
+ * @event: event for notifier
+ * @ptr: if address
+ */
+int irdma_inetaddr_event(struct notifier_block *notifier, unsigned long event,
+ void *ptr)
+{
+ struct in_ifaddr *ifa = ptr;
+ struct net_device *real_dev, *netdev = ifa->ifa_dev->dev;
+ struct irdma_device *iwdev;
+ struct ib_device *ibdev;
+ u32 local_ipaddr;
+
+ real_dev = rdma_vlan_dev_real_dev(netdev);
+ if (!real_dev)
+ real_dev = netdev;
+
+ ibdev = ib_device_get_by_netdev(real_dev, RDMA_DRIVER_IRDMA);
+ if (!ibdev)
+ return NOTIFY_DONE;
+
+ iwdev = to_iwdev(ibdev);
+ local_ipaddr = ntohl(ifa->ifa_address);
+ ibdev_dbg(&iwdev->ibdev,
+ "DEV: netdev %p event %lu local_ip=%pI4 MAC=%pM\n", real_dev,
+ event, &local_ipaddr, real_dev->dev_addr);
+ switch (event) {
+ case NETDEV_DOWN:
+ irdma_manage_arp_cache(iwdev->rf, real_dev->dev_addr,
+ &local_ipaddr, true, IRDMA_ARP_DELETE);
+ irdma_if_notify(iwdev, real_dev, &local_ipaddr, true, false);
+ irdma_gid_change_event(&iwdev->ibdev);
+ break;
+ case NETDEV_UP:
+ case NETDEV_CHANGEADDR:
+ irdma_add_arp(iwdev->rf, &local_ipaddr, true, real_dev->dev_addr);
+ irdma_if_notify(iwdev, real_dev, &local_ipaddr, true, true);
+ irdma_gid_change_event(&iwdev->ibdev);
+ break;
+ default:
+ break;
+ }
+
+ ib_device_put(ibdev);
+
+ return NOTIFY_DONE;
+}
+
+/**
+ * irdma_inet6addr_event - system notifier for ipv6 addr events
+ * @notifier: not used
+ * @event: event for notifier
+ * @ptr: if address
+ */
+int irdma_inet6addr_event(struct notifier_block *notifier, unsigned long event,
+ void *ptr)
+{
+ struct inet6_ifaddr *ifa = ptr;
+ struct net_device *real_dev, *netdev = ifa->idev->dev;
+ struct irdma_device *iwdev;
+ struct ib_device *ibdev;
+ u32 local_ipaddr6[4];
+
+ real_dev = rdma_vlan_dev_real_dev(netdev);
+ if (!real_dev)
+ real_dev = netdev;
+
+ ibdev = ib_device_get_by_netdev(real_dev, RDMA_DRIVER_IRDMA);
+ if (!ibdev)
+ return NOTIFY_DONE;
+
+ iwdev = to_iwdev(ibdev);
+ irdma_copy_ip_ntohl(local_ipaddr6, ifa->addr.in6_u.u6_addr32);
+ ibdev_dbg(&iwdev->ibdev,
+ "DEV: netdev %p event %lu local_ip=%pI6 MAC=%pM\n", real_dev,
+ event, local_ipaddr6, real_dev->dev_addr);
+ switch (event) {
+ case NETDEV_DOWN:
+ irdma_manage_arp_cache(iwdev->rf, real_dev->dev_addr,
+ local_ipaddr6, false, IRDMA_ARP_DELETE);
+ irdma_if_notify(iwdev, real_dev, local_ipaddr6, false, false);
+ irdma_gid_change_event(&iwdev->ibdev);
+ break;
+ case NETDEV_UP:
+ case NETDEV_CHANGEADDR:
+ irdma_add_arp(iwdev->rf, local_ipaddr6, false,
+ real_dev->dev_addr);
+ irdma_if_notify(iwdev, real_dev, local_ipaddr6, false, true);
+ irdma_gid_change_event(&iwdev->ibdev);
+ break;
+ default:
+ break;
+ }
+
+ ib_device_put(ibdev);
+
+ return NOTIFY_DONE;
+}
+
+/**
+ * irdma_net_event - system notifier for net events
+ * @notifier: not used
+ * @event: event for notifier
+ * @ptr: neighbor
+ */
+int irdma_net_event(struct notifier_block *notifier, unsigned long event,
+ void *ptr)
+{
+ struct neighbour *neigh = ptr;
+ struct net_device *real_dev, *netdev = (struct net_device *)neigh->dev;
+ struct irdma_device *iwdev;
+ struct ib_device *ibdev;
+ __be32 *p;
+ u32 local_ipaddr[4] = {};
+ bool ipv4 = true;
+
+ switch (event) {
+ case NETEVENT_NEIGH_UPDATE:
+ real_dev = rdma_vlan_dev_real_dev(netdev);
+ if (!real_dev)
+ real_dev = netdev;
+ ibdev = ib_device_get_by_netdev(real_dev, RDMA_DRIVER_IRDMA);
+ if (!ibdev)
+ return NOTIFY_DONE;
+
+ iwdev = to_iwdev(ibdev);
+ p = (__be32 *)neigh->primary_key;
+ if (neigh->tbl->family == AF_INET6) {
+ ipv4 = false;
+ irdma_copy_ip_ntohl(local_ipaddr, p);
+ } else {
+ local_ipaddr[0] = ntohl(*p);
+ }
+
+ ibdev_dbg(&iwdev->ibdev,
+ "DEV: netdev %p state %d local_ip=%pI4 MAC=%pM\n",
+ iwdev->netdev, neigh->nud_state, local_ipaddr,
+ neigh->ha);
+
+ if (neigh->nud_state & NUD_VALID)
+ irdma_add_arp(iwdev->rf, local_ipaddr, ipv4, neigh->ha);
+
+ else
+ irdma_manage_arp_cache(iwdev->rf, neigh->ha,
+ local_ipaddr, ipv4,
+ IRDMA_ARP_DELETE);
+ ib_device_put(ibdev);
+ break;
+ default:
+ break;
+ }
+
+ return NOTIFY_DONE;
+}
+
+/**
+ * irdma_netdevice_event - system notifier for netdev events
+ * @notifier: not used
+ * @event: event for notifier
+ * @ptr: netdev
+ */
+int irdma_netdevice_event(struct notifier_block *notifier, unsigned long event,
+ void *ptr)
+{
+ struct irdma_device *iwdev;
+ struct ib_device *ibdev;
+ struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
+
+ ibdev = ib_device_get_by_netdev(netdev, RDMA_DRIVER_IRDMA);
+ if (!ibdev)
+ return NOTIFY_DONE;
+
+ iwdev = to_iwdev(ibdev);
+ iwdev->iw_status = 1;
+ switch (event) {
+ case NETDEV_DOWN:
+ iwdev->iw_status = 0;
+ fallthrough;
+ case NETDEV_UP:
+ irdma_port_ibevent(iwdev);
+ break;
+ default:
+ break;
+ }
+ ib_device_put(ibdev);
+
+ return NOTIFY_DONE;
+}
+
+/**
+ * irdma_add_ipv6_addr - add ipv6 address to the hw arp table
+ * @iwdev: irdma device
+ */
+static void irdma_add_ipv6_addr(struct irdma_device *iwdev)
+{
+ struct net_device *ip_dev;
+ struct inet6_dev *idev;
+ struct inet6_ifaddr *ifp, *tmp;
+ u32 local_ipaddr6[4];
+
+ rcu_read_lock();
+ for_each_netdev_rcu (&init_net, ip_dev) {
+ if (((rdma_vlan_dev_vlan_id(ip_dev) < 0xFFFF &&
+ rdma_vlan_dev_real_dev(ip_dev) == iwdev->netdev) ||
+ ip_dev == iwdev->netdev) &&
+ (READ_ONCE(ip_dev->flags) & IFF_UP)) {
+ idev = __in6_dev_get(ip_dev);
+ if (!idev) {
+ ibdev_err(&iwdev->ibdev, "ipv6 inet device not found\n");
+ break;
+ }
+ list_for_each_entry_safe (ifp, tmp, &idev->addr_list,
+ if_list) {
+ ibdev_dbg(&iwdev->ibdev,
+ "INIT: IP=%pI6, vlan_id=%d, MAC=%pM\n",
+ &ifp->addr,
+ rdma_vlan_dev_vlan_id(ip_dev),
+ ip_dev->dev_addr);
+
+ irdma_copy_ip_ntohl(local_ipaddr6,
+ ifp->addr.in6_u.u6_addr32);
+ irdma_manage_arp_cache(iwdev->rf,
+ ip_dev->dev_addr,
+ local_ipaddr6, false,
+ IRDMA_ARP_ADD);
+ }
+ }
+ }
+ rcu_read_unlock();
+}
+
+/**
+ * irdma_add_ipv4_addr - add ipv4 address to the hw arp table
+ * @iwdev: irdma device
+ */
+static void irdma_add_ipv4_addr(struct irdma_device *iwdev)
+{
+ struct net_device *dev;
+ struct in_device *idev;
+ u32 ip_addr;
+
+ rcu_read_lock();
+ for_each_netdev_rcu (&init_net, dev) {
+ if (((rdma_vlan_dev_vlan_id(dev) < 0xFFFF &&
+ rdma_vlan_dev_real_dev(dev) == iwdev->netdev) ||
+ dev == iwdev->netdev) && (READ_ONCE(dev->flags) & IFF_UP)) {
+ const struct in_ifaddr *ifa;
+
+ idev = __in_dev_get_rcu(dev);
+ if (!idev)
+ continue;
+
+ in_dev_for_each_ifa_rcu(ifa, idev) {
+ ibdev_dbg(&iwdev->ibdev, "CM: IP=%pI4, vlan_id=%d, MAC=%pM\n",
+ &ifa->ifa_address, rdma_vlan_dev_vlan_id(dev),
+ dev->dev_addr);
+
+ ip_addr = ntohl(ifa->ifa_address);
+ irdma_manage_arp_cache(iwdev->rf, dev->dev_addr,
+ &ip_addr, true,
+ IRDMA_ARP_ADD);
+ }
+ }
+ }
+ rcu_read_unlock();
+}
+
+/**
+ * irdma_add_ip - add ip addresses
+ * @iwdev: irdma device
+ *
+ * Add ipv4/ipv6 addresses to the arp cache
+ */
+void irdma_add_ip(struct irdma_device *iwdev)
+{
+ irdma_add_ipv4_addr(iwdev);
+ irdma_add_ipv6_addr(iwdev);
+}
+
+/**
+ * irdma_alloc_and_get_cqp_request - get cqp struct
+ * @cqp: device cqp ptr
+ * @wait: cqp to be used in wait mode
+ */
+struct irdma_cqp_request *irdma_alloc_and_get_cqp_request(struct irdma_cqp *cqp,
+ bool wait)
+{
+ struct irdma_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_first_entry(&cqp->cqp_avail_reqs,
+ struct irdma_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;
+ if (wait)
+ init_waitqueue_head(&cqp_request->waitq);
+ }
+ }
+ if (!cqp_request) {
+ ibdev_dbg(to_ibdev(cqp->sc_cqp.dev), "ERR: CQP Request Fail: No Memory");
+ return NULL;
+ }
+
+ cqp_request->waiting = wait;
+ refcount_set(&cqp_request->refcnt, 1);
+ memset(&cqp_request->compl_info, 0, sizeof(cqp_request->compl_info));
+
+ return cqp_request;
+}
+
+/**
+ * irdma_get_cqp_request - increase refcount for cqp_request
+ * @cqp_request: pointer to cqp_request instance
+ */
+static inline void irdma_get_cqp_request(struct irdma_cqp_request *cqp_request)
+{
+ refcount_inc(&cqp_request->refcnt);
+}
+
+/**
+ * irdma_free_cqp_request - free cqp request
+ * @cqp: cqp ptr
+ * @cqp_request: to be put back in cqp list
+ */
+void irdma_free_cqp_request(struct irdma_cqp *cqp,
+ struct irdma_cqp_request *cqp_request)
+{
+ unsigned long flags;
+
+ if (cqp_request->dynamic) {
+ kfree(cqp_request);
+ } else {
+ WRITE_ONCE(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(&cqp->remove_wq);
+}
+
+/**
+ * irdma_put_cqp_request - dec ref count and free if 0
+ * @cqp: cqp ptr
+ * @cqp_request: to be put back in cqp list
+ */
+void irdma_put_cqp_request(struct irdma_cqp *cqp,
+ struct irdma_cqp_request *cqp_request)
+{
+ if (refcount_dec_and_test(&cqp_request->refcnt))
+ irdma_free_cqp_request(cqp, cqp_request);
+}
+
+/**
+ * irdma_free_pending_cqp_request -free pending cqp request objs
+ * @cqp: cqp ptr
+ * @cqp_request: to be put back in cqp list
+ */
+static void
+irdma_free_pending_cqp_request(struct irdma_cqp *cqp,
+ struct irdma_cqp_request *cqp_request)
+{
+ if (cqp_request->waiting) {
+ cqp_request->compl_info.error = true;
+ WRITE_ONCE(cqp_request->request_done, true);
+ wake_up(&cqp_request->waitq);
+ }
+ wait_event_timeout(cqp->remove_wq,
+ refcount_read(&cqp_request->refcnt) == 1, 1000);
+ irdma_put_cqp_request(cqp, cqp_request);
+}
+
+/**
+ * irdma_cleanup_pending_cqp_op - clean-up cqp with no
+ * completions
+ * @rf: RDMA PCI function
+ */
+void irdma_cleanup_pending_cqp_op(struct irdma_pci_f *rf)
+{
+ struct irdma_sc_dev *dev = &rf->sc_dev;
+ struct irdma_cqp *cqp = &rf->cqp;
+ struct irdma_cqp_request *cqp_request = NULL;
+ struct cqp_cmds_info *pcmdinfo = NULL;
+ u32 i, pending_work, wqe_idx;
+
+ pending_work = IRDMA_RING_USED_QUANTA(cqp->sc_cqp.sq_ring);
+ wqe_idx = IRDMA_RING_CURRENT_TAIL(cqp->sc_cqp.sq_ring);
+ for (i = 0; i < pending_work; i++) {
+ cqp_request = (struct irdma_cqp_request *)(unsigned long)
+ cqp->scratch_array[wqe_idx];
+ if (cqp_request)
+ irdma_free_pending_cqp_request(cqp, cqp_request);
+ wqe_idx = (wqe_idx + 1) % IRDMA_RING_SIZE(cqp->sc_cqp.sq_ring);
+ }
+
+ while (!list_empty(&dev->cqp_cmd_head)) {
+ pcmdinfo = irdma_remove_cqp_head(dev);
+ cqp_request =
+ container_of(pcmdinfo, struct irdma_cqp_request, info);
+ if (cqp_request)
+ irdma_free_pending_cqp_request(cqp, cqp_request);
+ }
+}
+
+/**
+ * irdma_wait_event - wait for completion
+ * @rf: RDMA PCI function
+ * @cqp_request: cqp request to wait
+ */
+static int irdma_wait_event(struct irdma_pci_f *rf,
+ struct irdma_cqp_request *cqp_request)
+{
+ struct irdma_cqp_timeout cqp_timeout = {};
+ bool cqp_error = false;
+ int err_code = 0;
+
+ cqp_timeout.compl_cqp_cmds = atomic64_read(&rf->sc_dev.cqp->completed_ops);
+ do {
+ irdma_cqp_ce_handler(rf, &rf->ccq.sc_cq);
+ if (wait_event_timeout(cqp_request->waitq,
+ READ_ONCE(cqp_request->request_done),
+ msecs_to_jiffies(CQP_COMPL_WAIT_TIME_MS)))
+ break;
+
+ irdma_check_cqp_progress(&cqp_timeout, &rf->sc_dev);
+
+ if (cqp_timeout.count < CQP_TIMEOUT_THRESHOLD)
+ continue;
+
+ if (!rf->reset) {
+ rf->reset = true;
+ rf->gen_ops.request_reset(rf);
+ }
+ return -ETIMEDOUT;
+ } while (1);
+
+ cqp_error = cqp_request->compl_info.error;
+ if (cqp_error) {
+ err_code = -EIO;
+ if (cqp_request->compl_info.maj_err_code == 0xFFFF) {
+ if (cqp_request->compl_info.min_err_code == 0x8002)
+ err_code = -EBUSY;
+ else if (cqp_request->compl_info.min_err_code == 0x8029) {
+ if (!rf->reset) {
+ rf->reset = true;
+ rf->gen_ops.request_reset(rf);
+ }
+ }
+ }
+ }
+
+ return err_code;
+}
+
+static const char *const irdma_cqp_cmd_names[IRDMA_MAX_CQP_OPS] = {
+ [IRDMA_OP_CEQ_DESTROY] = "Destroy CEQ Cmd",
+ [IRDMA_OP_AEQ_DESTROY] = "Destroy AEQ Cmd",
+ [IRDMA_OP_DELETE_ARP_CACHE_ENTRY] = "Delete ARP Cache Cmd",
+ [IRDMA_OP_MANAGE_APBVT_ENTRY] = "Manage APBV Table Entry Cmd",
+ [IRDMA_OP_CEQ_CREATE] = "CEQ Create Cmd",
+ [IRDMA_OP_AEQ_CREATE] = "AEQ Destroy Cmd",
+ [IRDMA_OP_MANAGE_QHASH_TABLE_ENTRY] = "Manage Quad Hash Table Entry Cmd",
+ [IRDMA_OP_QP_MODIFY] = "Modify QP Cmd",
+ [IRDMA_OP_QP_UPLOAD_CONTEXT] = "Upload Context Cmd",
+ [IRDMA_OP_CQ_CREATE] = "Create CQ Cmd",
+ [IRDMA_OP_CQ_DESTROY] = "Destroy CQ Cmd",
+ [IRDMA_OP_QP_CREATE] = "Create QP Cmd",
+ [IRDMA_OP_QP_DESTROY] = "Destroy QP Cmd",
+ [IRDMA_OP_ALLOC_STAG] = "Allocate STag Cmd",
+ [IRDMA_OP_MR_REG_NON_SHARED] = "Register Non-Shared MR Cmd",
+ [IRDMA_OP_DEALLOC_STAG] = "Deallocate STag Cmd",
+ [IRDMA_OP_MW_ALLOC] = "Allocate Memory Window Cmd",
+ [IRDMA_OP_QP_FLUSH_WQES] = "Flush QP Cmd",
+ [IRDMA_OP_ADD_ARP_CACHE_ENTRY] = "Add ARP Cache Cmd",
+ [IRDMA_OP_MANAGE_PUSH_PAGE] = "Manage Push Page Cmd",
+ [IRDMA_OP_UPDATE_PE_SDS] = "Update PE SDs Cmd",
+ [IRDMA_OP_MANAGE_HMC_PM_FUNC_TABLE] = "Manage HMC PM Function Table Cmd",
+ [IRDMA_OP_SUSPEND] = "Suspend QP Cmd",
+ [IRDMA_OP_RESUME] = "Resume QP Cmd",
+ [IRDMA_OP_MANAGE_VF_PBLE_BP] = "Manage VF PBLE Backing Pages Cmd",
+ [IRDMA_OP_QUERY_FPM_VAL] = "Query FPM Values Cmd",
+ [IRDMA_OP_COMMIT_FPM_VAL] = "Commit FPM Values Cmd",
+ [IRDMA_OP_AH_CREATE] = "Create Address Handle Cmd",
+ [IRDMA_OP_AH_MODIFY] = "Modify Address Handle Cmd",
+ [IRDMA_OP_AH_DESTROY] = "Destroy Address Handle Cmd",
+ [IRDMA_OP_MC_CREATE] = "Create Multicast Group Cmd",
+ [IRDMA_OP_MC_DESTROY] = "Destroy Multicast Group Cmd",
+ [IRDMA_OP_MC_MODIFY] = "Modify Multicast Group Cmd",
+ [IRDMA_OP_STATS_ALLOCATE] = "Add Statistics Instance Cmd",
+ [IRDMA_OP_STATS_FREE] = "Free Statistics Instance Cmd",
+ [IRDMA_OP_STATS_GATHER] = "Gather Statistics Cmd",
+ [IRDMA_OP_WS_ADD_NODE] = "Add Work Scheduler Node Cmd",
+ [IRDMA_OP_WS_MODIFY_NODE] = "Modify Work Scheduler Node Cmd",
+ [IRDMA_OP_WS_DELETE_NODE] = "Delete Work Scheduler Node Cmd",
+ [IRDMA_OP_SET_UP_MAP] = "Set UP-UP Mapping Cmd",
+ [IRDMA_OP_GEN_AE] = "Generate AE Cmd",
+ [IRDMA_OP_QUERY_RDMA_FEATURES] = "RDMA Get Features Cmd",
+ [IRDMA_OP_ALLOC_LOCAL_MAC_ENTRY] = "Allocate Local MAC Entry Cmd",
+ [IRDMA_OP_ADD_LOCAL_MAC_ENTRY] = "Add Local MAC Entry Cmd",
+ [IRDMA_OP_DELETE_LOCAL_MAC_ENTRY] = "Delete Local MAC Entry Cmd",
+ [IRDMA_OP_CQ_MODIFY] = "CQ Modify Cmd",
+};
+
+static const struct irdma_cqp_err_info irdma_noncrit_err_list[] = {
+ {0xffff, 0x8002, "Invalid State"},
+ {0xffff, 0x8006, "Flush No Wqe Pending"},
+ {0xffff, 0x8007, "Modify QP Bad Close"},
+ {0xffff, 0x8009, "LLP Closed"},
+ {0xffff, 0x800a, "Reset Not Sent"}
+};
+
+/**
+ * irdma_cqp_crit_err - check if CQP error is critical
+ * @dev: pointer to dev structure
+ * @cqp_cmd: code for last CQP operation
+ * @maj_err_code: major error code
+ * @min_err_code: minot error code
+ */
+bool irdma_cqp_crit_err(struct irdma_sc_dev *dev, u8 cqp_cmd,
+ u16 maj_err_code, u16 min_err_code)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(irdma_noncrit_err_list); ++i) {
+ if (maj_err_code == irdma_noncrit_err_list[i].maj &&
+ min_err_code == irdma_noncrit_err_list[i].min) {
+ ibdev_dbg(to_ibdev(dev),
+ "CQP: [%s Error][%s] maj=0x%x min=0x%x\n",
+ irdma_noncrit_err_list[i].desc,
+ irdma_cqp_cmd_names[cqp_cmd], maj_err_code,
+ min_err_code);
+ return false;
+ }
+ }
+ return true;
+}
+
+/**
+ * irdma_handle_cqp_op - process cqp command
+ * @rf: RDMA PCI function
+ * @cqp_request: cqp request to process
+ */
+int irdma_handle_cqp_op(struct irdma_pci_f *rf,
+ struct irdma_cqp_request *cqp_request)
+{
+ struct irdma_sc_dev *dev = &rf->sc_dev;
+ struct cqp_cmds_info *info = &cqp_request->info;
+ int status;
+ bool put_cqp_request = true;
+
+ if (rf->reset)
+ return -EBUSY;
+
+ irdma_get_cqp_request(cqp_request);
+ status = irdma_process_cqp_cmd(dev, info);
+ if (status)
+ goto err;
+
+ if (cqp_request->waiting) {
+ put_cqp_request = false;
+ status = irdma_wait_event(rf, cqp_request);
+ if (status)
+ goto err;
+ }
+
+ return 0;
+
+err:
+ if (irdma_cqp_crit_err(dev, info->cqp_cmd,
+ cqp_request->compl_info.maj_err_code,
+ cqp_request->compl_info.min_err_code))
+ ibdev_err(&rf->iwdev->ibdev,
+ "[%s Error][op_code=%d] status=%d waiting=%d completion_err=%d maj=0x%x min=0x%x\n",
+ irdma_cqp_cmd_names[info->cqp_cmd], info->cqp_cmd, status, cqp_request->waiting,
+ cqp_request->compl_info.error, cqp_request->compl_info.maj_err_code,
+ cqp_request->compl_info.min_err_code);
+
+ if (put_cqp_request)
+ irdma_put_cqp_request(&rf->cqp, cqp_request);
+
+ return status;
+}
+
+void irdma_qp_add_ref(struct ib_qp *ibqp)
+{
+ struct irdma_qp *iwqp = (struct irdma_qp *)ibqp;
+
+ refcount_inc(&iwqp->refcnt);
+}
+
+void irdma_qp_rem_ref(struct ib_qp *ibqp)
+{
+ struct irdma_qp *iwqp = to_iwqp(ibqp);
+ struct irdma_device *iwdev = iwqp->iwdev;
+ u32 qp_num;
+ unsigned long flags;
+
+ spin_lock_irqsave(&iwdev->rf->qptable_lock, flags);
+ if (!refcount_dec_and_test(&iwqp->refcnt)) {
+ spin_unlock_irqrestore(&iwdev->rf->qptable_lock, flags);
+ return;
+ }
+
+ qp_num = iwqp->ibqp.qp_num;
+ iwdev->rf->qp_table[qp_num] = NULL;
+ spin_unlock_irqrestore(&iwdev->rf->qptable_lock, flags);
+ complete(&iwqp->free_qp);
+}
+
+struct ib_device *to_ibdev(struct irdma_sc_dev *dev)
+{
+ return &(container_of(dev, struct irdma_pci_f, sc_dev))->iwdev->ibdev;
+}
+
+/**
+ * irdma_get_qp - get qp address
+ * @device: iwarp device
+ * @qpn: qp number
+ */
+struct ib_qp *irdma_get_qp(struct ib_device *device, int qpn)
+{
+ struct irdma_device *iwdev = to_iwdev(device);
+
+ if (qpn < IW_FIRST_QPN || qpn >= iwdev->rf->max_qp)
+ return NULL;
+
+ return &iwdev->rf->qp_table[qpn]->ibqp;
+}
+
+/**
+ * irdma_remove_cqp_head - return head entry and remove
+ * @dev: device
+ */
+void *irdma_remove_cqp_head(struct irdma_sc_dev *dev)
+{
+ struct list_head *entry;
+ struct list_head *list = &dev->cqp_cmd_head;
+
+ if (list_empty(list))
+ return NULL;
+
+ entry = list->next;
+ list_del(entry);
+
+ return entry;
+}
+
+/**
+ * irdma_cqp_sds_cmd - create cqp command for sd
+ * @dev: hardware control device structure
+ * @sdinfo: information for sd cqp
+ *
+ */
+int irdma_cqp_sds_cmd(struct irdma_sc_dev *dev,
+ struct irdma_update_sds_info *sdinfo)
+{
+ struct irdma_cqp_request *cqp_request;
+ struct cqp_cmds_info *cqp_info;
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+ int status;
+
+ cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
+ if (!cqp_request)
+ return -ENOMEM;
+
+ 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 = IRDMA_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 = irdma_handle_cqp_op(rf, cqp_request);
+ irdma_put_cqp_request(&rf->cqp, cqp_request);
+
+ return status;
+}
+
+/**
+ * irdma_cqp_qp_suspend_resume - cqp command for suspend/resume
+ * @qp: hardware control qp
+ * @op: suspend or resume
+ */
+int irdma_cqp_qp_suspend_resume(struct irdma_sc_qp *qp, u8 op)
+{
+ struct irdma_sc_dev *dev = qp->dev;
+ struct irdma_cqp_request *cqp_request;
+ struct irdma_sc_cqp *cqp = dev->cqp;
+ struct cqp_cmds_info *cqp_info;
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+ int status;
+
+ cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, false);
+ if (!cqp_request)
+ return -ENOMEM;
+
+ cqp_info = &cqp_request->info;
+ cqp_info->cqp_cmd = op;
+ 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 = irdma_handle_cqp_op(rf, cqp_request);
+ irdma_put_cqp_request(&rf->cqp, cqp_request);
+
+ return status;
+}
+
+/**
+ * irdma_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 irdma_term_modify_qp(struct irdma_sc_qp *qp, u8 next_state, u8 term,
+ u8 term_len)
+{
+ struct irdma_qp *iwqp;
+
+ iwqp = qp->qp_uk.back_qp;
+ irdma_next_iw_state(iwqp, next_state, 0, term, term_len);
+};
+
+/**
+ * irdma_terminate_done - after terminate is completed
+ * @qp: hardware control qp
+ * @timeout_occurred: indicates if terminate timer expired
+ */
+void irdma_terminate_done(struct irdma_sc_qp *qp, int timeout_occurred)
+{
+ struct irdma_qp *iwqp;
+ u8 hte = 0;
+ bool first_time;
+ unsigned long flags;
+
+ iwqp = qp->qp_uk.back_qp;
+ spin_lock_irqsave(&iwqp->lock, flags);
+ if (iwqp->hte_added) {
+ iwqp->hte_added = 0;
+ hte = 1;
+ }
+ first_time = !(qp->term_flags & IRDMA_TERM_DONE);
+ qp->term_flags |= IRDMA_TERM_DONE;
+ spin_unlock_irqrestore(&iwqp->lock, flags);
+ if (first_time) {
+ if (!timeout_occurred)
+ irdma_terminate_del_timer(qp);
+
+ irdma_next_iw_state(iwqp, IRDMA_QP_STATE_ERROR, hte, 0, 0);
+ irdma_cm_disconn(iwqp);
+ }
+}
+
+static void irdma_terminate_timeout(struct timer_list *t)
+{
+ struct irdma_qp *iwqp = from_timer(iwqp, t, terminate_timer);
+ struct irdma_sc_qp *qp = &iwqp->sc_qp;
+
+ irdma_terminate_done(qp, 1);
+ irdma_qp_rem_ref(&iwqp->ibqp);
+}
+
+/**
+ * irdma_terminate_start_timer - start terminate timeout
+ * @qp: hardware control qp
+ */
+void irdma_terminate_start_timer(struct irdma_sc_qp *qp)
+{
+ struct irdma_qp *iwqp;
+
+ iwqp = qp->qp_uk.back_qp;
+ irdma_qp_add_ref(&iwqp->ibqp);
+ timer_setup(&iwqp->terminate_timer, irdma_terminate_timeout, 0);
+ iwqp->terminate_timer.expires = jiffies + HZ;
+
+ add_timer(&iwqp->terminate_timer);
+}
+
+/**
+ * irdma_terminate_del_timer - delete terminate timeout
+ * @qp: hardware control qp
+ */
+void irdma_terminate_del_timer(struct irdma_sc_qp *qp)
+{
+ struct irdma_qp *iwqp;
+ int ret;
+
+ iwqp = qp->qp_uk.back_qp;
+ ret = del_timer(&iwqp->terminate_timer);
+ if (ret)
+ irdma_qp_rem_ref(&iwqp->ibqp);
+}
+
+/**
+ * irdma_cqp_query_fpm_val_cmd - send cqp command for fpm
+ * @dev: function device struct
+ * @val_mem: buffer for fpm
+ * @hmc_fn_id: function id for fpm
+ */
+int irdma_cqp_query_fpm_val_cmd(struct irdma_sc_dev *dev,
+ struct irdma_dma_mem *val_mem, u8 hmc_fn_id)
+{
+ struct irdma_cqp_request *cqp_request;
+ struct cqp_cmds_info *cqp_info;
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+ int status;
+
+ cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
+ if (!cqp_request)
+ return -ENOMEM;
+
+ cqp_info = &cqp_request->info;
+ cqp_request->param = NULL;
+ cqp_info->in.u.query_fpm_val.cqp = dev->cqp;
+ cqp_info->in.u.query_fpm_val.fpm_val_pa = val_mem->pa;
+ cqp_info->in.u.query_fpm_val.fpm_val_va = val_mem->va;
+ cqp_info->in.u.query_fpm_val.hmc_fn_id = hmc_fn_id;
+ cqp_info->cqp_cmd = IRDMA_OP_QUERY_FPM_VAL;
+ cqp_info->post_sq = 1;
+ cqp_info->in.u.query_fpm_val.scratch = (uintptr_t)cqp_request;
+
+ status = irdma_handle_cqp_op(rf, cqp_request);
+ irdma_put_cqp_request(&rf->cqp, cqp_request);
+
+ return status;
+}
+
+/**
+ * irdma_cqp_commit_fpm_val_cmd - commit fpm values in hw
+ * @dev: hardware control device structure
+ * @val_mem: buffer with fpm values
+ * @hmc_fn_id: function id for fpm
+ */
+int irdma_cqp_commit_fpm_val_cmd(struct irdma_sc_dev *dev,
+ struct irdma_dma_mem *val_mem, u8 hmc_fn_id)
+{
+ struct irdma_cqp_request *cqp_request;
+ struct cqp_cmds_info *cqp_info;
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+ int status;
+
+ cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
+ if (!cqp_request)
+ return -ENOMEM;
+
+ cqp_info = &cqp_request->info;
+ cqp_request->param = NULL;
+ cqp_info->in.u.commit_fpm_val.cqp = dev->cqp;
+ cqp_info->in.u.commit_fpm_val.fpm_val_pa = val_mem->pa;
+ cqp_info->in.u.commit_fpm_val.fpm_val_va = val_mem->va;
+ cqp_info->in.u.commit_fpm_val.hmc_fn_id = hmc_fn_id;
+ cqp_info->cqp_cmd = IRDMA_OP_COMMIT_FPM_VAL;
+ cqp_info->post_sq = 1;
+ cqp_info->in.u.commit_fpm_val.scratch = (uintptr_t)cqp_request;
+
+ status = irdma_handle_cqp_op(rf, cqp_request);
+ irdma_put_cqp_request(&rf->cqp, cqp_request);
+
+ return status;
+}
+
+/**
+ * irdma_cqp_cq_create_cmd - create a cq for the cqp
+ * @dev: device pointer
+ * @cq: pointer to created cq
+ */
+int irdma_cqp_cq_create_cmd(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq)
+{
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+ struct irdma_cqp *iwcqp = &rf->cqp;
+ struct irdma_cqp_request *cqp_request;
+ struct cqp_cmds_info *cqp_info;
+ int status;
+
+ cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
+ if (!cqp_request)
+ return -ENOMEM;
+
+ cqp_info = &cqp_request->info;
+ cqp_info->cqp_cmd = IRDMA_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 = irdma_handle_cqp_op(rf, cqp_request);
+ irdma_put_cqp_request(iwcqp, cqp_request);
+
+ return status;
+}
+
+/**
+ * irdma_cqp_qp_create_cmd - create a qp for the cqp
+ * @dev: device pointer
+ * @qp: pointer to created qp
+ */
+int irdma_cqp_qp_create_cmd(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp)
+{
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+ struct irdma_cqp *iwcqp = &rf->cqp;
+ struct irdma_cqp_request *cqp_request;
+ struct cqp_cmds_info *cqp_info;
+ struct irdma_create_qp_info *qp_info;
+ int status;
+
+ cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
+ if (!cqp_request)
+ return -ENOMEM;
+
+ 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 = IRDMA_QP_STATE_RTS;
+ cqp_info->cqp_cmd = IRDMA_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 = irdma_handle_cqp_op(rf, cqp_request);
+ irdma_put_cqp_request(iwcqp, cqp_request);
+
+ return status;
+}
+
+/**
+ * irdma_dealloc_push_page - free a push page for qp
+ * @rf: RDMA PCI function
+ * @qp: hardware control qp
+ */
+static void irdma_dealloc_push_page(struct irdma_pci_f *rf,
+ struct irdma_sc_qp *qp)
+{
+ struct irdma_cqp_request *cqp_request;
+ struct cqp_cmds_info *cqp_info;
+ int status;
+
+ if (qp->push_idx == IRDMA_INVALID_PUSH_PAGE_INDEX)
+ return;
+
+ cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, false);
+ if (!cqp_request)
+ return;
+
+ cqp_info = &cqp_request->info;
+ cqp_info->cqp_cmd = IRDMA_OP_MANAGE_PUSH_PAGE;
+ cqp_info->post_sq = 1;
+ cqp_info->in.u.manage_push_page.info.push_idx = qp->push_idx;
+ cqp_info->in.u.manage_push_page.info.qs_handle = qp->qs_handle;
+ cqp_info->in.u.manage_push_page.info.free_page = 1;
+ cqp_info->in.u.manage_push_page.info.push_page_type = 0;
+ cqp_info->in.u.manage_push_page.cqp = &rf->cqp.sc_cqp;
+ cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request;
+ status = irdma_handle_cqp_op(rf, cqp_request);
+ if (!status)
+ qp->push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX;
+ irdma_put_cqp_request(&rf->cqp, cqp_request);
+}
+
+/**
+ * irdma_free_qp_rsrc - free up memory resources for qp
+ * @iwqp: qp ptr (user or kernel)
+ */
+void irdma_free_qp_rsrc(struct irdma_qp *iwqp)
+{
+ struct irdma_device *iwdev = iwqp->iwdev;
+ struct irdma_pci_f *rf = iwdev->rf;
+ u32 qp_num = iwqp->ibqp.qp_num;
+
+ irdma_ieq_cleanup_qp(iwdev->vsi.ieq, &iwqp->sc_qp);
+ irdma_dealloc_push_page(rf, &iwqp->sc_qp);
+ if (iwqp->sc_qp.vsi) {
+ irdma_qp_rem_qos(&iwqp->sc_qp);
+ iwqp->sc_qp.dev->ws_remove(iwqp->sc_qp.vsi,
+ iwqp->sc_qp.user_pri);
+ }
+
+ if (qp_num > 2)
+ irdma_free_rsrc(rf, rf->allocated_qps, qp_num);
+ dma_free_coherent(rf->sc_dev.hw->device, iwqp->q2_ctx_mem.size,
+ iwqp->q2_ctx_mem.va, iwqp->q2_ctx_mem.pa);
+ iwqp->q2_ctx_mem.va = NULL;
+ dma_free_coherent(rf->sc_dev.hw->device, iwqp->kqp.dma_mem.size,
+ iwqp->kqp.dma_mem.va, iwqp->kqp.dma_mem.pa);
+ iwqp->kqp.dma_mem.va = NULL;
+ kfree(iwqp->kqp.sq_wrid_mem);
+ kfree(iwqp->kqp.rq_wrid_mem);
+}
+
+/**
+ * irdma_cq_wq_destroy - send cq destroy cqp
+ * @rf: RDMA PCI function
+ * @cq: hardware control cq
+ */
+void irdma_cq_wq_destroy(struct irdma_pci_f *rf, struct irdma_sc_cq *cq)
+{
+ struct irdma_cqp_request *cqp_request;
+ struct cqp_cmds_info *cqp_info;
+
+ cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
+ if (!cqp_request)
+ return;
+
+ cqp_info = &cqp_request->info;
+ cqp_info->cqp_cmd = IRDMA_OP_CQ_DESTROY;
+ cqp_info->post_sq = 1;
+ cqp_info->in.u.cq_destroy.cq = cq;
+ cqp_info->in.u.cq_destroy.scratch = (uintptr_t)cqp_request;
+
+ irdma_handle_cqp_op(rf, cqp_request);
+ irdma_put_cqp_request(&rf->cqp, cqp_request);
+}
+
+/**
+ * irdma_hw_modify_qp_callback - handle state for modifyQPs that don't wait
+ * @cqp_request: modify QP completion
+ */
+static void irdma_hw_modify_qp_callback(struct irdma_cqp_request *cqp_request)
+{
+ struct cqp_cmds_info *cqp_info;
+ struct irdma_qp *iwqp;
+
+ cqp_info = &cqp_request->info;
+ iwqp = cqp_info->in.u.qp_modify.qp->qp_uk.back_qp;
+ atomic_dec(&iwqp->hw_mod_qp_pend);
+ wake_up(&iwqp->mod_qp_waitq);
+}
+
+/**
+ * irdma_hw_modify_qp - setup cqp for modify qp
+ * @iwdev: RDMA device
+ * @iwqp: qp ptr (user or kernel)
+ * @info: info for modify qp
+ * @wait: flag to wait or not for modify qp completion
+ */
+int irdma_hw_modify_qp(struct irdma_device *iwdev, struct irdma_qp *iwqp,
+ struct irdma_modify_qp_info *info, bool wait)
+{
+ int status;
+ struct irdma_pci_f *rf = iwdev->rf;
+ struct irdma_cqp_request *cqp_request;
+ struct cqp_cmds_info *cqp_info;
+ struct irdma_modify_qp_info *m_info;
+
+ cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, wait);
+ if (!cqp_request)
+ return -ENOMEM;
+
+ if (!wait) {
+ cqp_request->callback_fcn = irdma_hw_modify_qp_callback;
+ atomic_inc(&iwqp->hw_mod_qp_pend);
+ }
+ cqp_info = &cqp_request->info;
+ m_info = &cqp_info->in.u.qp_modify.info;
+ memcpy(m_info, info, sizeof(*m_info));
+ cqp_info->cqp_cmd = IRDMA_OP_QP_MODIFY;
+ cqp_info->post_sq = 1;
+ cqp_info->in.u.qp_modify.qp = &iwqp->sc_qp;
+ cqp_info->in.u.qp_modify.scratch = (uintptr_t)cqp_request;
+ status = irdma_handle_cqp_op(rf, cqp_request);
+ irdma_put_cqp_request(&rf->cqp, cqp_request);
+ if (status) {
+ if (rdma_protocol_roce(&iwdev->ibdev, 1))
+ return status;
+
+ switch (m_info->next_iwarp_state) {
+ struct irdma_gen_ae_info ae_info;
+
+ case IRDMA_QP_STATE_RTS:
+ case IRDMA_QP_STATE_IDLE:
+ case IRDMA_QP_STATE_TERMINATE:
+ case IRDMA_QP_STATE_CLOSING:
+ if (info->curr_iwarp_state == IRDMA_QP_STATE_IDLE)
+ irdma_send_reset(iwqp->cm_node);
+ else
+ iwqp->sc_qp.term_flags = IRDMA_TERM_DONE;
+ if (!wait) {
+ ae_info.ae_code = IRDMA_AE_BAD_CLOSE;
+ ae_info.ae_src = 0;
+ irdma_gen_ae(rf, &iwqp->sc_qp, &ae_info, false);
+ } else {
+ cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp,
+ wait);
+ if (!cqp_request)
+ return -ENOMEM;
+
+ cqp_info = &cqp_request->info;
+ m_info = &cqp_info->in.u.qp_modify.info;
+ memcpy(m_info, info, sizeof(*m_info));
+ cqp_info->cqp_cmd = IRDMA_OP_QP_MODIFY;
+ cqp_info->post_sq = 1;
+ cqp_info->in.u.qp_modify.qp = &iwqp->sc_qp;
+ cqp_info->in.u.qp_modify.scratch = (uintptr_t)cqp_request;
+ m_info->next_iwarp_state = IRDMA_QP_STATE_ERROR;
+ m_info->reset_tcp_conn = true;
+ irdma_handle_cqp_op(rf, cqp_request);
+ irdma_put_cqp_request(&rf->cqp, cqp_request);
+ }
+ break;
+ case IRDMA_QP_STATE_ERROR:
+ default:
+ break;
+ }
+ }
+
+ return status;
+}
+
+/**
+ * irdma_cqp_cq_destroy_cmd - destroy the cqp cq
+ * @dev: device pointer
+ * @cq: pointer to cq
+ */
+void irdma_cqp_cq_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq)
+{
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+
+ irdma_cq_wq_destroy(rf, cq);
+}
+
+/**
+ * irdma_cqp_qp_destroy_cmd - destroy the cqp
+ * @dev: device pointer
+ * @qp: pointer to qp
+ */
+int irdma_cqp_qp_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp)
+{
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+ struct irdma_cqp *iwcqp = &rf->cqp;
+ struct irdma_cqp_request *cqp_request;
+ struct cqp_cmds_info *cqp_info;
+ int status;
+
+ cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
+ if (!cqp_request)
+ return -ENOMEM;
+
+ cqp_info = &cqp_request->info;
+ memset(cqp_info, 0, sizeof(*cqp_info));
+ cqp_info->cqp_cmd = IRDMA_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 = irdma_handle_cqp_op(rf, cqp_request);
+ irdma_put_cqp_request(&rf->cqp, cqp_request);
+
+ return status;
+}
+
+/**
+ * irdma_ieq_mpa_crc_ae - generate AE for crc error
+ * @dev: hardware control device structure
+ * @qp: hardware control qp
+ */
+void irdma_ieq_mpa_crc_ae(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp)
+{
+ struct irdma_gen_ae_info info = {};
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+
+ ibdev_dbg(&rf->iwdev->ibdev, "AEQ: Generate MPA CRC AE\n");
+ info.ae_code = IRDMA_AE_LLP_RECEIVED_MPA_CRC_ERROR;
+ info.ae_src = IRDMA_AE_SOURCE_RQ;
+ irdma_gen_ae(rf, qp, &info, false);
+}
+
+/**
+ * irdma_init_hash_desc - initialize hash for crc calculation
+ * @desc: cryption type
+ */
+int irdma_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 -EINVAL;
+
+ tdesc = kzalloc(sizeof(*tdesc) + crypto_shash_descsize(tfm),
+ GFP_KERNEL);
+ if (!tdesc) {
+ crypto_free_shash(tfm);
+ return -EINVAL;
+ }
+
+ tdesc->tfm = tfm;
+ *desc = tdesc;
+
+ return 0;
+}
+
+/**
+ * irdma_free_hash_desc - free hash desc
+ * @desc: to be freed
+ */
+void irdma_free_hash_desc(struct shash_desc *desc)
+{
+ if (desc) {
+ crypto_free_shash(desc->tfm);
+ kfree(desc);
+ }
+}
+
+/**
+ * irdma_ieq_check_mpacrc - check if mpa crc is OK
+ * @desc: desc for hash
+ * @addr: address of buffer for crc
+ * @len: length of buffer
+ * @val: value to be compared
+ */
+int irdma_ieq_check_mpacrc(struct shash_desc *desc, void *addr, u32 len,
+ u32 val)
+{
+ u32 crc = 0;
+ int ret;
+ int ret_code = 0;
+
+ crypto_shash_init(desc);
+ ret = crypto_shash_update(desc, addr, len);
+ if (!ret)
+ crypto_shash_final(desc, (u8 *)&crc);
+ if (crc != val)
+ ret_code = -EINVAL;
+
+ return ret_code;
+}
+
+/**
+ * irdma_ieq_get_qp - get qp based on quad in puda buffer
+ * @dev: hardware control device structure
+ * @buf: receive puda buffer on exception q
+ */
+struct irdma_sc_qp *irdma_ieq_get_qp(struct irdma_sc_dev *dev,
+ struct irdma_puda_buf *buf)
+{
+ struct irdma_qp *iwqp;
+ struct irdma_cm_node *cm_node;
+ struct irdma_device *iwdev = buf->vsi->back_vsi;
+ u32 loc_addr[4] = {};
+ u32 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) {
+ loc_addr[0] = ntohl(iph->daddr);
+ rem_addr[0] = ntohl(iph->saddr);
+ } else {
+ ip6h = (struct ipv6hdr *)buf->iph;
+ irdma_copy_ip_ntohl(loc_addr, ip6h->daddr.in6_u.u6_addr32);
+ irdma_copy_ip_ntohl(rem_addr, ip6h->saddr.in6_u.u6_addr32);
+ }
+ loc_port = ntohs(tcph->dest);
+ rem_port = ntohs(tcph->source);
+ cm_node = irdma_find_node(&iwdev->cm_core, rem_port, rem_addr, loc_port,
+ loc_addr, buf->vlan_valid ? buf->vlan_id : 0xFFFF);
+ if (!cm_node)
+ return NULL;
+
+ iwqp = cm_node->iwqp;
+ irdma_rem_ref_cm_node(cm_node);
+
+ return &iwqp->sc_qp;
+}
+
+/**
+ * irdma_send_ieq_ack - ACKs for duplicate or OOO partials FPDUs
+ * @qp: qp ptr
+ */
+void irdma_send_ieq_ack(struct irdma_sc_qp *qp)
+{
+ struct irdma_cm_node *cm_node = ((struct irdma_qp *)qp->qp_uk.back_qp)->cm_node;
+ struct irdma_puda_buf *buf = qp->pfpdu.lastrcv_buf;
+ struct tcphdr *tcph = (struct tcphdr *)buf->tcph;
+
+ cm_node->tcp_cntxt.rcv_nxt = qp->pfpdu.nextseqnum;
+ cm_node->tcp_cntxt.loc_seq_num = ntohl(tcph->ack_seq);
+
+ irdma_send_ack(cm_node);
+}
+
+/**
+ * irdma_puda_ieq_get_ah_info - get AH info from IEQ buffer
+ * @qp: qp pointer
+ * @ah_info: AH info pointer
+ */
+void irdma_puda_ieq_get_ah_info(struct irdma_sc_qp *qp,
+ struct irdma_ah_info *ah_info)
+{
+ struct irdma_puda_buf *buf = qp->pfpdu.ah_buf;
+ struct iphdr *iph;
+ struct ipv6hdr *ip6h;
+
+ memset(ah_info, 0, sizeof(*ah_info));
+ ah_info->do_lpbk = true;
+ ah_info->vlan_tag = buf->vlan_id;
+ ah_info->insert_vlan_tag = buf->vlan_valid;
+ ah_info->ipv4_valid = buf->ipv4;
+ ah_info->vsi = qp->vsi;
+
+ if (buf->smac_valid)
+ ether_addr_copy(ah_info->mac_addr, buf->smac);
+
+ if (buf->ipv4) {
+ ah_info->ipv4_valid = true;
+ iph = (struct iphdr *)buf->iph;
+ ah_info->hop_ttl = iph->ttl;
+ ah_info->tc_tos = iph->tos;
+ ah_info->dest_ip_addr[0] = ntohl(iph->daddr);
+ ah_info->src_ip_addr[0] = ntohl(iph->saddr);
+ } else {
+ ip6h = (struct ipv6hdr *)buf->iph;
+ ah_info->hop_ttl = ip6h->hop_limit;
+ ah_info->tc_tos = ip6h->priority;
+ irdma_copy_ip_ntohl(ah_info->dest_ip_addr,
+ ip6h->daddr.in6_u.u6_addr32);
+ irdma_copy_ip_ntohl(ah_info->src_ip_addr,
+ ip6h->saddr.in6_u.u6_addr32);
+ }
+
+ ah_info->dst_arpindex = irdma_arp_table(dev_to_rf(qp->dev),
+ ah_info->dest_ip_addr,
+ ah_info->ipv4_valid,
+ NULL, IRDMA_ARP_RESOLVE);
+}
+
+/**
+ * irdma_gen1_ieq_update_tcpip_info - update tcpip in the buffer
+ * @buf: puda to update
+ * @len: length of buffer
+ * @seqnum: seq number for tcp
+ */
+static void irdma_gen1_ieq_update_tcpip_info(struct irdma_puda_buf *buf,
+ u16 len, u32 seqnum)
+{
+ struct tcphdr *tcph;
+ struct iphdr *iph;
+ u16 iphlen;
+ u16 pktsize;
+ u8 *addr = buf->mem.va;
+
+ iphlen = (buf->ipv4) ? 20 : 40;
+ iph = (struct iphdr *)(addr + buf->maclen);
+ tcph = (struct tcphdr *)(addr + buf->maclen + iphlen);
+ pktsize = len + buf->tcphlen + iphlen;
+ iph->tot_len = htons(pktsize);
+ tcph->seq = htonl(seqnum);
+}
+
+/**
+ * irdma_ieq_update_tcpip_info - update tcpip in the buffer
+ * @buf: puda to update
+ * @len: length of buffer
+ * @seqnum: seq number for tcp
+ */
+void irdma_ieq_update_tcpip_info(struct irdma_puda_buf *buf, u16 len,
+ u32 seqnum)
+{
+ struct tcphdr *tcph;
+ u8 *addr;
+
+ if (buf->vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1)
+ return irdma_gen1_ieq_update_tcpip_info(buf, len, seqnum);
+
+ addr = buf->mem.va;
+ tcph = (struct tcphdr *)addr;
+ tcph->seq = htonl(seqnum);
+}
+
+/**
+ * irdma_gen1_puda_get_tcpip_info - get tcpip info from puda
+ * buffer
+ * @info: to get information
+ * @buf: puda buffer
+ */
+static int irdma_gen1_puda_get_tcpip_info(struct irdma_puda_cmpl_info *info,
+ struct irdma_puda_buf *buf)
+{
+ struct iphdr *iph;
+ struct ipv6hdr *ip6h;
+ struct tcphdr *tcph;
+ u16 iphlen;
+ u16 pkt_len;
+ u8 *mem = buf->mem.va;
+ struct ethhdr *ethh = 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) {
+ ibdev_dbg(to_ibdev(buf->vsi->dev),
+ "ERR: payload_len = 0x%x totallen expected0x%x\n",
+ info->payload_len, buf->totallen);
+ return -EINVAL;
+ }
+
+ 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;
+}
+
+/**
+ * irdma_puda_get_tcpip_info - get tcpip info from puda buffer
+ * @info: to get information
+ * @buf: puda buffer
+ */
+int irdma_puda_get_tcpip_info(struct irdma_puda_cmpl_info *info,
+ struct irdma_puda_buf *buf)
+{
+ struct tcphdr *tcph;
+ u32 pkt_len;
+ u8 *mem;
+
+ if (buf->vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1)
+ return irdma_gen1_puda_get_tcpip_info(info, buf);
+
+ mem = buf->mem.va;
+ buf->vlan_valid = info->vlan_valid;
+ if (info->vlan_valid)
+ buf->vlan_id = info->vlan;
+
+ buf->ipv4 = info->ipv4;
+ if (buf->ipv4)
+ buf->iph = mem + IRDMA_IPV4_PAD;
+ else
+ buf->iph = mem;
+
+ buf->tcph = mem + IRDMA_TCP_OFFSET;
+ tcph = (struct tcphdr *)buf->tcph;
+ pkt_len = info->payload_len;
+ buf->totallen = pkt_len;
+ buf->tcphlen = tcph->doff << 2;
+ buf->datalen = pkt_len - IRDMA_TCP_OFFSET - buf->tcphlen;
+ buf->data = buf->datalen ? buf->tcph + buf->tcphlen : NULL;
+ buf->hdrlen = IRDMA_TCP_OFFSET + buf->tcphlen;
+ buf->seqnum = ntohl(tcph->seq);
+
+ if (info->smac_valid) {
+ ether_addr_copy(buf->smac, info->smac);
+ buf->smac_valid = true;
+ }
+
+ return 0;
+}
+
+/**
+ * irdma_hw_stats_timeout - Stats timer-handler which updates all HW stats
+ * @t: timer_list pointer
+ */
+static void irdma_hw_stats_timeout(struct timer_list *t)
+{
+ struct irdma_vsi_pestat *pf_devstat =
+ from_timer(pf_devstat, t, stats_timer);
+ struct irdma_sc_vsi *sc_vsi = pf_devstat->vsi;
+
+ if (sc_vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1)
+ irdma_cqp_gather_stats_gen1(sc_vsi->dev, sc_vsi->pestat);
+ else
+ irdma_cqp_gather_stats_cmd(sc_vsi->dev, sc_vsi->pestat, false);
+
+ mod_timer(&pf_devstat->stats_timer,
+ jiffies + msecs_to_jiffies(STATS_TIMER_DELAY));
+}
+
+/**
+ * irdma_hw_stats_start_timer - Start periodic stats timer
+ * @vsi: vsi structure pointer
+ */
+void irdma_hw_stats_start_timer(struct irdma_sc_vsi *vsi)
+{
+ struct irdma_vsi_pestat *devstat = vsi->pestat;
+
+ timer_setup(&devstat->stats_timer, irdma_hw_stats_timeout, 0);
+ mod_timer(&devstat->stats_timer,
+ jiffies + msecs_to_jiffies(STATS_TIMER_DELAY));
+}
+
+/**
+ * irdma_hw_stats_stop_timer - Delete periodic stats timer
+ * @vsi: pointer to vsi structure
+ */
+void irdma_hw_stats_stop_timer(struct irdma_sc_vsi *vsi)
+{
+ struct irdma_vsi_pestat *devstat = vsi->pestat;
+
+ del_timer_sync(&devstat->stats_timer);
+}
+
+/**
+ * irdma_process_stats - Checking for wrap and update stats
+ * @pestat: stats structure pointer
+ */
+static inline void irdma_process_stats(struct irdma_vsi_pestat *pestat)
+{
+ sc_vsi_update_stats(pestat->vsi);
+}
+
+/**
+ * irdma_cqp_gather_stats_gen1 - Gather stats
+ * @dev: pointer to device structure
+ * @pestat: statistics structure
+ */
+void irdma_cqp_gather_stats_gen1(struct irdma_sc_dev *dev,
+ struct irdma_vsi_pestat *pestat)
+{
+ struct irdma_gather_stats *gather_stats =
+ pestat->gather_info.gather_stats_va;
+ u32 stats_inst_offset_32;
+ u32 stats_inst_offset_64;
+
+ stats_inst_offset_32 = (pestat->gather_info.use_stats_inst) ?
+ pestat->gather_info.stats_inst_index :
+ pestat->hw->hmc.hmc_fn_id;
+ stats_inst_offset_32 *= 4;
+ stats_inst_offset_64 = stats_inst_offset_32 * 2;
+
+ gather_stats->rxvlanerr =
+ rd32(dev->hw,
+ dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_RXVLANERR]
+ + stats_inst_offset_32);
+ gather_stats->ip4rxdiscard =
+ rd32(dev->hw,
+ dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP4RXDISCARD]
+ + stats_inst_offset_32);
+ gather_stats->ip4rxtrunc =
+ rd32(dev->hw,
+ dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP4RXTRUNC]
+ + stats_inst_offset_32);
+ gather_stats->ip4txnoroute =
+ rd32(dev->hw,
+ dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP4TXNOROUTE]
+ + stats_inst_offset_32);
+ gather_stats->ip6rxdiscard =
+ rd32(dev->hw,
+ dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP6RXDISCARD]
+ + stats_inst_offset_32);
+ gather_stats->ip6rxtrunc =
+ rd32(dev->hw,
+ dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP6RXTRUNC]
+ + stats_inst_offset_32);
+ gather_stats->ip6txnoroute =
+ rd32(dev->hw,
+ dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP6TXNOROUTE]
+ + stats_inst_offset_32);
+ gather_stats->tcprtxseg =
+ rd32(dev->hw,
+ dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_TCPRTXSEG]
+ + stats_inst_offset_32);
+ gather_stats->tcprxopterr =
+ rd32(dev->hw,
+ dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_TCPRXOPTERR]
+ + stats_inst_offset_32);
+
+ gather_stats->ip4rxocts =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXOCTS]
+ + stats_inst_offset_64);
+ gather_stats->ip4rxpkts =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXPKTS]
+ + stats_inst_offset_64);
+ gather_stats->ip4txfrag =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXFRAGS]
+ + stats_inst_offset_64);
+ gather_stats->ip4rxmcpkts =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXMCPKTS]
+ + stats_inst_offset_64);
+ gather_stats->ip4txocts =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXOCTS]
+ + stats_inst_offset_64);
+ gather_stats->ip4txpkts =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXPKTS]
+ + stats_inst_offset_64);
+ gather_stats->ip4txfrag =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXFRAGS]
+ + stats_inst_offset_64);
+ gather_stats->ip4txmcpkts =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXMCPKTS]
+ + stats_inst_offset_64);
+ gather_stats->ip6rxocts =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXOCTS]
+ + stats_inst_offset_64);
+ gather_stats->ip6rxpkts =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXPKTS]
+ + stats_inst_offset_64);
+ gather_stats->ip6txfrags =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXFRAGS]
+ + stats_inst_offset_64);
+ gather_stats->ip6rxmcpkts =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXMCPKTS]
+ + stats_inst_offset_64);
+ gather_stats->ip6txocts =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXOCTS]
+ + stats_inst_offset_64);
+ gather_stats->ip6txpkts =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXPKTS]
+ + stats_inst_offset_64);
+ gather_stats->ip6txfrags =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXFRAGS]
+ + stats_inst_offset_64);
+ gather_stats->ip6txmcpkts =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXMCPKTS]
+ + stats_inst_offset_64);
+ gather_stats->tcprxsegs =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_TCPRXSEGS]
+ + stats_inst_offset_64);
+ gather_stats->tcptxsegs =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_TCPTXSEG]
+ + stats_inst_offset_64);
+ gather_stats->rdmarxrds =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMARXRDS]
+ + stats_inst_offset_64);
+ gather_stats->rdmarxsnds =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMARXSNDS]
+ + stats_inst_offset_64);
+ gather_stats->rdmarxwrs =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMARXWRS]
+ + stats_inst_offset_64);
+ gather_stats->rdmatxrds =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMATXRDS]
+ + stats_inst_offset_64);
+ gather_stats->rdmatxsnds =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMATXSNDS]
+ + stats_inst_offset_64);
+ gather_stats->rdmatxwrs =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMATXWRS]
+ + stats_inst_offset_64);
+ gather_stats->rdmavbn =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMAVBND]
+ + stats_inst_offset_64);
+ gather_stats->rdmavinv =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMAVINV]
+ + stats_inst_offset_64);
+ gather_stats->udprxpkts =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_UDPRXPKTS]
+ + stats_inst_offset_64);
+ gather_stats->udptxpkts =
+ rd64(dev->hw,
+ dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_UDPTXPKTS]
+ + stats_inst_offset_64);
+
+ irdma_process_stats(pestat);
+}
+
+/**
+ * irdma_process_cqp_stats - Checking for wrap and update stats
+ * @cqp_request: cqp_request structure pointer
+ */
+static void irdma_process_cqp_stats(struct irdma_cqp_request *cqp_request)
+{
+ struct irdma_vsi_pestat *pestat = cqp_request->param;
+
+ irdma_process_stats(pestat);
+}
+
+/**
+ * irdma_cqp_gather_stats_cmd - Gather stats
+ * @dev: pointer to device structure
+ * @pestat: pointer to stats info
+ * @wait: flag to wait or not wait for stats
+ */
+int irdma_cqp_gather_stats_cmd(struct irdma_sc_dev *dev,
+ struct irdma_vsi_pestat *pestat, bool wait)
+
+{
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+ struct irdma_cqp *iwcqp = &rf->cqp;
+ struct irdma_cqp_request *cqp_request;
+ struct cqp_cmds_info *cqp_info;
+ int status;
+
+ cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, wait);
+ if (!cqp_request)
+ return -ENOMEM;
+
+ cqp_info = &cqp_request->info;
+ memset(cqp_info, 0, sizeof(*cqp_info));
+ cqp_info->cqp_cmd = IRDMA_OP_STATS_GATHER;
+ cqp_info->post_sq = 1;
+ cqp_info->in.u.stats_gather.info = pestat->gather_info;
+ cqp_info->in.u.stats_gather.scratch = (uintptr_t)cqp_request;
+ cqp_info->in.u.stats_gather.cqp = &rf->cqp.sc_cqp;
+ cqp_request->param = pestat;
+ if (!wait)
+ cqp_request->callback_fcn = irdma_process_cqp_stats;
+ status = irdma_handle_cqp_op(rf, cqp_request);
+ if (wait)
+ irdma_process_stats(pestat);
+ irdma_put_cqp_request(&rf->cqp, cqp_request);
+
+ return status;
+}
+
+/**
+ * irdma_cqp_stats_inst_cmd - Allocate/free stats instance
+ * @vsi: pointer to vsi structure
+ * @cmd: command to allocate or free
+ * @stats_info: pointer to allocate stats info
+ */
+int irdma_cqp_stats_inst_cmd(struct irdma_sc_vsi *vsi, u8 cmd,
+ struct irdma_stats_inst_info *stats_info)
+{
+ struct irdma_pci_f *rf = dev_to_rf(vsi->dev);
+ struct irdma_cqp *iwcqp = &rf->cqp;
+ struct irdma_cqp_request *cqp_request;
+ struct cqp_cmds_info *cqp_info;
+ int status;
+ bool wait = false;
+
+ if (cmd == IRDMA_OP_STATS_ALLOCATE)
+ wait = true;
+ cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, wait);
+ if (!cqp_request)
+ return -ENOMEM;
+
+ cqp_info = &cqp_request->info;
+ memset(cqp_info, 0, sizeof(*cqp_info));
+ cqp_info->cqp_cmd = cmd;
+ cqp_info->post_sq = 1;
+ cqp_info->in.u.stats_manage.info = *stats_info;
+ cqp_info->in.u.stats_manage.scratch = (uintptr_t)cqp_request;
+ cqp_info->in.u.stats_manage.cqp = &rf->cqp.sc_cqp;
+ status = irdma_handle_cqp_op(rf, cqp_request);
+ if (wait)
+ stats_info->stats_idx = cqp_request->compl_info.op_ret_val;
+ irdma_put_cqp_request(iwcqp, cqp_request);
+
+ return status;
+}
+
+/**
+ * irdma_cqp_ceq_cmd - Create/Destroy CEQ's after CEQ 0
+ * @dev: pointer to device info
+ * @sc_ceq: pointer to ceq structure
+ * @op: Create or Destroy
+ */
+int irdma_cqp_ceq_cmd(struct irdma_sc_dev *dev, struct irdma_sc_ceq *sc_ceq,
+ u8 op)
+{
+ struct irdma_cqp_request *cqp_request;
+ struct cqp_cmds_info *cqp_info;
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+ int status;
+
+ cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
+ if (!cqp_request)
+ return -ENOMEM;
+
+ cqp_info = &cqp_request->info;
+ cqp_info->post_sq = 1;
+ cqp_info->cqp_cmd = op;
+ cqp_info->in.u.ceq_create.ceq = sc_ceq;
+ cqp_info->in.u.ceq_create.scratch = (uintptr_t)cqp_request;
+
+ status = irdma_handle_cqp_op(rf, cqp_request);
+ irdma_put_cqp_request(&rf->cqp, cqp_request);
+
+ return status;
+}
+
+/**
+ * irdma_cqp_aeq_cmd - Create/Destroy AEQ
+ * @dev: pointer to device info
+ * @sc_aeq: pointer to aeq structure
+ * @op: Create or Destroy
+ */
+int irdma_cqp_aeq_cmd(struct irdma_sc_dev *dev, struct irdma_sc_aeq *sc_aeq,
+ u8 op)
+{
+ struct irdma_cqp_request *cqp_request;
+ struct cqp_cmds_info *cqp_info;
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+ int status;
+
+ cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
+ if (!cqp_request)
+ return -ENOMEM;
+
+ cqp_info = &cqp_request->info;
+ cqp_info->post_sq = 1;
+ cqp_info->cqp_cmd = op;
+ cqp_info->in.u.aeq_create.aeq = sc_aeq;
+ cqp_info->in.u.aeq_create.scratch = (uintptr_t)cqp_request;
+
+ status = irdma_handle_cqp_op(rf, cqp_request);
+ irdma_put_cqp_request(&rf->cqp, cqp_request);
+
+ return status;
+}
+
+/**
+ * irdma_cqp_ws_node_cmd - Add/modify/delete ws node
+ * @dev: pointer to device structure
+ * @cmd: Add, modify or delete
+ * @node_info: pointer to ws node info
+ */
+int irdma_cqp_ws_node_cmd(struct irdma_sc_dev *dev, u8 cmd,
+ struct irdma_ws_node_info *node_info)
+{
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+ struct irdma_cqp *iwcqp = &rf->cqp;
+ struct irdma_sc_cqp *cqp = &iwcqp->sc_cqp;
+ struct irdma_cqp_request *cqp_request;
+ struct cqp_cmds_info *cqp_info;
+ int status;
+ bool poll;
+
+ if (!rf->sc_dev.ceq_valid)
+ poll = true;
+ else
+ poll = false;
+
+ cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, !poll);
+ if (!cqp_request)
+ return -ENOMEM;
+
+ cqp_info = &cqp_request->info;
+ memset(cqp_info, 0, sizeof(*cqp_info));
+ cqp_info->cqp_cmd = cmd;
+ cqp_info->post_sq = 1;
+ cqp_info->in.u.ws_node.info = *node_info;
+ cqp_info->in.u.ws_node.cqp = cqp;
+ cqp_info->in.u.ws_node.scratch = (uintptr_t)cqp_request;
+ status = irdma_handle_cqp_op(rf, cqp_request);
+ if (status)
+ goto exit;
+
+ if (poll) {
+ struct irdma_ccq_cqe_info compl_info;
+
+ status = irdma_sc_poll_for_cqp_op_done(cqp, IRDMA_CQP_OP_WORK_SCHED_NODE,
+ &compl_info);
+ node_info->qs_handle = compl_info.op_ret_val;
+ ibdev_dbg(&rf->iwdev->ibdev, "DCB: opcode=%d, compl_info.retval=%d\n",
+ compl_info.op_code, compl_info.op_ret_val);
+ } else {
+ node_info->qs_handle = cqp_request->compl_info.op_ret_val;
+ }
+
+exit:
+ irdma_put_cqp_request(&rf->cqp, cqp_request);
+
+ return status;
+}
+
+/**
+ * irdma_ah_cqp_op - perform an AH cqp operation
+ * @rf: RDMA PCI function
+ * @sc_ah: address handle
+ * @cmd: AH operation
+ * @wait: wait if true
+ * @callback_fcn: Callback function on CQP op completion
+ * @cb_param: parameter for callback function
+ *
+ * returns errno
+ */
+int irdma_ah_cqp_op(struct irdma_pci_f *rf, struct irdma_sc_ah *sc_ah, u8 cmd,
+ bool wait,
+ void (*callback_fcn)(struct irdma_cqp_request *),
+ void *cb_param)
+{
+ struct irdma_cqp_request *cqp_request;
+ struct cqp_cmds_info *cqp_info;
+ int status;
+
+ if (cmd != IRDMA_OP_AH_CREATE && cmd != IRDMA_OP_AH_DESTROY)
+ return -EINVAL;
+
+ cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, wait);
+ if (!cqp_request)
+ return -ENOMEM;
+
+ cqp_info = &cqp_request->info;
+ cqp_info->cqp_cmd = cmd;
+ cqp_info->post_sq = 1;
+ if (cmd == IRDMA_OP_AH_CREATE) {
+ cqp_info->in.u.ah_create.info = sc_ah->ah_info;
+ cqp_info->in.u.ah_create.scratch = (uintptr_t)cqp_request;
+ cqp_info->in.u.ah_create.cqp = &rf->cqp.sc_cqp;
+ } else if (cmd == IRDMA_OP_AH_DESTROY) {
+ cqp_info->in.u.ah_destroy.info = sc_ah->ah_info;
+ cqp_info->in.u.ah_destroy.scratch = (uintptr_t)cqp_request;
+ cqp_info->in.u.ah_destroy.cqp = &rf->cqp.sc_cqp;
+ }
+
+ if (!wait) {
+ cqp_request->callback_fcn = callback_fcn;
+ cqp_request->param = cb_param;
+ }
+ status = irdma_handle_cqp_op(rf, cqp_request);
+ irdma_put_cqp_request(&rf->cqp, cqp_request);
+
+ if (status)
+ return -ENOMEM;
+
+ if (wait)
+ sc_ah->ah_info.ah_valid = (cmd == IRDMA_OP_AH_CREATE);
+
+ return 0;
+}
+
+/**
+ * irdma_ieq_ah_cb - callback after creation of AH for IEQ
+ * @cqp_request: pointer to cqp_request of create AH
+ */
+static void irdma_ieq_ah_cb(struct irdma_cqp_request *cqp_request)
+{
+ struct irdma_sc_qp *qp = cqp_request->param;
+ struct irdma_sc_ah *sc_ah = qp->pfpdu.ah;
+ unsigned long flags;
+
+ spin_lock_irqsave(&qp->pfpdu.lock, flags);
+ if (!cqp_request->compl_info.op_ret_val) {
+ sc_ah->ah_info.ah_valid = true;
+ irdma_ieq_process_fpdus(qp, qp->vsi->ieq);
+ } else {
+ sc_ah->ah_info.ah_valid = false;
+ irdma_ieq_cleanup_qp(qp->vsi->ieq, qp);
+ }
+ spin_unlock_irqrestore(&qp->pfpdu.lock, flags);
+}
+
+/**
+ * irdma_ilq_ah_cb - callback after creation of AH for ILQ
+ * @cqp_request: pointer to cqp_request of create AH
+ */
+static void irdma_ilq_ah_cb(struct irdma_cqp_request *cqp_request)
+{
+ struct irdma_cm_node *cm_node = cqp_request->param;
+ struct irdma_sc_ah *sc_ah = cm_node->ah;
+
+ sc_ah->ah_info.ah_valid = !cqp_request->compl_info.op_ret_val;
+ irdma_add_conn_est_qh(cm_node);
+}
+
+/**
+ * irdma_puda_create_ah - create AH for ILQ/IEQ qp's
+ * @dev: device pointer
+ * @ah_info: Address handle info
+ * @wait: When true will wait for operation to complete
+ * @type: ILQ/IEQ
+ * @cb_param: Callback param when not waiting
+ * @ah_ret: Returned pointer to address handle if created
+ *
+ */
+int irdma_puda_create_ah(struct irdma_sc_dev *dev,
+ struct irdma_ah_info *ah_info, bool wait,
+ enum puda_rsrc_type type, void *cb_param,
+ struct irdma_sc_ah **ah_ret)
+{
+ struct irdma_sc_ah *ah;
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+ int err;
+
+ ah = kzalloc(sizeof(*ah), GFP_ATOMIC);
+ *ah_ret = ah;
+ if (!ah)
+ return -ENOMEM;
+
+ err = irdma_alloc_rsrc(rf, rf->allocated_ahs, rf->max_ah,
+ &ah_info->ah_idx, &rf->next_ah);
+ if (err)
+ goto err_free;
+
+ ah->dev = dev;
+ ah->ah_info = *ah_info;
+
+ if (type == IRDMA_PUDA_RSRC_TYPE_ILQ)
+ err = irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_CREATE, wait,
+ irdma_ilq_ah_cb, cb_param);
+ else
+ err = irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_CREATE, wait,
+ irdma_ieq_ah_cb, cb_param);
+
+ if (err)
+ goto error;
+ return 0;
+
+error:
+ irdma_free_rsrc(rf, rf->allocated_ahs, ah->ah_info.ah_idx);
+err_free:
+ kfree(ah);
+ *ah_ret = NULL;
+ return -ENOMEM;
+}
+
+/**
+ * irdma_puda_free_ah - free a puda address handle
+ * @dev: device pointer
+ * @ah: The address handle to free
+ */
+void irdma_puda_free_ah(struct irdma_sc_dev *dev, struct irdma_sc_ah *ah)
+{
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+
+ if (!ah)
+ return;
+
+ if (ah->ah_info.ah_valid) {
+ irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_DESTROY, false, NULL, NULL);
+ irdma_free_rsrc(rf, rf->allocated_ahs, ah->ah_info.ah_idx);
+ }
+
+ kfree(ah);
+}
+
+/**
+ * irdma_gsi_ud_qp_ah_cb - callback after creation of AH for GSI/ID QP
+ * @cqp_request: pointer to cqp_request of create AH
+ */
+void irdma_gsi_ud_qp_ah_cb(struct irdma_cqp_request *cqp_request)
+{
+ struct irdma_sc_ah *sc_ah = cqp_request->param;
+
+ if (!cqp_request->compl_info.op_ret_val)
+ sc_ah->ah_info.ah_valid = true;
+ else
+ sc_ah->ah_info.ah_valid = false;
+}
+
+/**
+ * irdma_prm_add_pble_mem - add moemory to pble resources
+ * @pprm: pble resource manager
+ * @pchunk: chunk of memory to add
+ */
+int irdma_prm_add_pble_mem(struct irdma_pble_prm *pprm,
+ struct irdma_chunk *pchunk)
+{
+ u64 sizeofbitmap;
+
+ if (pchunk->size & 0xfff)
+ return -EINVAL;
+
+ sizeofbitmap = (u64)pchunk->size >> pprm->pble_shift;
+
+ pchunk->bitmapbuf = bitmap_zalloc(sizeofbitmap, GFP_KERNEL);
+ if (!pchunk->bitmapbuf)
+ return -ENOMEM;
+
+ pchunk->sizeofbitmap = sizeofbitmap;
+ /* each pble is 8 bytes hence shift by 3 */
+ pprm->total_pble_alloc += pchunk->size >> 3;
+ pprm->free_pble_cnt += pchunk->size >> 3;
+
+ return 0;
+}
+
+/**
+ * irdma_prm_get_pbles - get pble's from prm
+ * @pprm: pble resource manager
+ * @chunkinfo: nformation about chunk where pble's were acquired
+ * @mem_size: size of pble memory needed
+ * @vaddr: returns virtual address of pble memory
+ * @fpm_addr: returns fpm address of pble memory
+ */
+int irdma_prm_get_pbles(struct irdma_pble_prm *pprm,
+ struct irdma_pble_chunkinfo *chunkinfo, u64 mem_size,
+ u64 **vaddr, u64 *fpm_addr)
+{
+ u64 bits_needed;
+ u64 bit_idx = PBLE_INVALID_IDX;
+ struct irdma_chunk *pchunk = NULL;
+ struct list_head *chunk_entry = pprm->clist.next;
+ u32 offset;
+ unsigned long flags;
+ *vaddr = NULL;
+ *fpm_addr = 0;
+
+ bits_needed = DIV_ROUND_UP_ULL(mem_size, BIT_ULL(pprm->pble_shift));
+
+ spin_lock_irqsave(&pprm->prm_lock, flags);
+ while (chunk_entry != &pprm->clist) {
+ pchunk = (struct irdma_chunk *)chunk_entry;
+ bit_idx = bitmap_find_next_zero_area(pchunk->bitmapbuf,
+ pchunk->sizeofbitmap, 0,
+ bits_needed, 0);
+ if (bit_idx < pchunk->sizeofbitmap)
+ break;
+
+ /* list.next used macro */
+ chunk_entry = pchunk->list.next;
+ }
+
+ if (!pchunk || bit_idx >= pchunk->sizeofbitmap) {
+ spin_unlock_irqrestore(&pprm->prm_lock, flags);
+ return -ENOMEM;
+ }
+
+ bitmap_set(pchunk->bitmapbuf, bit_idx, bits_needed);
+ offset = bit_idx << pprm->pble_shift;
+ *vaddr = pchunk->vaddr + offset;
+ *fpm_addr = pchunk->fpm_addr + offset;
+
+ chunkinfo->pchunk = pchunk;
+ chunkinfo->bit_idx = bit_idx;
+ chunkinfo->bits_used = bits_needed;
+ /* 3 is sizeof pble divide */
+ pprm->free_pble_cnt -= chunkinfo->bits_used << (pprm->pble_shift - 3);
+ spin_unlock_irqrestore(&pprm->prm_lock, flags);
+
+ return 0;
+}
+
+/**
+ * irdma_prm_return_pbles - return pbles back to prm
+ * @pprm: pble resource manager
+ * @chunkinfo: chunk where pble's were acquired and to be freed
+ */
+void irdma_prm_return_pbles(struct irdma_pble_prm *pprm,
+ struct irdma_pble_chunkinfo *chunkinfo)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&pprm->prm_lock, flags);
+ pprm->free_pble_cnt += chunkinfo->bits_used << (pprm->pble_shift - 3);
+ bitmap_clear(chunkinfo->pchunk->bitmapbuf, chunkinfo->bit_idx,
+ chunkinfo->bits_used);
+ spin_unlock_irqrestore(&pprm->prm_lock, flags);
+}
+
+int irdma_map_vm_page_list(struct irdma_hw *hw, void *va, dma_addr_t *pg_dma,
+ u32 pg_cnt)
+{
+ struct page *vm_page;
+ int i;
+ u8 *addr;
+
+ addr = (u8 *)(uintptr_t)va;
+ for (i = 0; i < pg_cnt; i++) {
+ vm_page = vmalloc_to_page(addr);
+ if (!vm_page)
+ goto err;
+
+ pg_dma[i] = dma_map_page(hw->device, vm_page, 0, PAGE_SIZE,
+ DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(hw->device, pg_dma[i]))
+ goto err;
+
+ addr += PAGE_SIZE;
+ }
+
+ return 0;
+
+err:
+ irdma_unmap_vm_page_list(hw, pg_dma, i);
+ return -ENOMEM;
+}
+
+void irdma_unmap_vm_page_list(struct irdma_hw *hw, dma_addr_t *pg_dma, u32 pg_cnt)
+{
+ int i;
+
+ for (i = 0; i < pg_cnt; i++)
+ dma_unmap_page(hw->device, pg_dma[i], PAGE_SIZE, DMA_BIDIRECTIONAL);
+}
+
+/**
+ * irdma_pble_free_paged_mem - free virtual paged memory
+ * @chunk: chunk to free with paged memory
+ */
+void irdma_pble_free_paged_mem(struct irdma_chunk *chunk)
+{
+ if (!chunk->pg_cnt)
+ goto done;
+
+ irdma_unmap_vm_page_list(chunk->dev->hw, chunk->dmainfo.dmaaddrs,
+ chunk->pg_cnt);
+
+done:
+ kfree(chunk->dmainfo.dmaaddrs);
+ chunk->dmainfo.dmaaddrs = NULL;
+ vfree(chunk->vaddr);
+ chunk->vaddr = NULL;
+ chunk->type = 0;
+}
+
+/**
+ * irdma_pble_get_paged_mem -allocate paged memory for pbles
+ * @chunk: chunk to add for paged memory
+ * @pg_cnt: number of pages needed
+ */
+int irdma_pble_get_paged_mem(struct irdma_chunk *chunk, u32 pg_cnt)
+{
+ u32 size;
+ void *va;
+
+ chunk->dmainfo.dmaaddrs = kzalloc(pg_cnt << 3, GFP_KERNEL);
+ if (!chunk->dmainfo.dmaaddrs)
+ return -ENOMEM;
+
+ size = PAGE_SIZE * pg_cnt;
+ va = vmalloc(size);
+ if (!va)
+ goto err;
+
+ if (irdma_map_vm_page_list(chunk->dev->hw, va, chunk->dmainfo.dmaaddrs,
+ pg_cnt)) {
+ vfree(va);
+ goto err;
+ }
+ chunk->vaddr = va;
+ chunk->size = size;
+ chunk->pg_cnt = pg_cnt;
+ chunk->type = PBLE_SD_PAGED;
+
+ return 0;
+err:
+ kfree(chunk->dmainfo.dmaaddrs);
+ chunk->dmainfo.dmaaddrs = NULL;
+
+ return -ENOMEM;
+}
+
+/**
+ * irdma_alloc_ws_node_id - Allocate a tx scheduler node ID
+ * @dev: device pointer
+ */
+u16 irdma_alloc_ws_node_id(struct irdma_sc_dev *dev)
+{
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+ u32 next = 1;
+ u32 node_id;
+
+ if (irdma_alloc_rsrc(rf, rf->allocated_ws_nodes, rf->max_ws_node_id,
+ &node_id, &next))
+ return IRDMA_WS_NODE_INVALID;
+
+ return (u16)node_id;
+}
+
+/**
+ * irdma_free_ws_node_id - Free a tx scheduler node ID
+ * @dev: device pointer
+ * @node_id: Work scheduler node ID
+ */
+void irdma_free_ws_node_id(struct irdma_sc_dev *dev, u16 node_id)
+{
+ struct irdma_pci_f *rf = dev_to_rf(dev);
+
+ irdma_free_rsrc(rf, rf->allocated_ws_nodes, (u32)node_id);
+}
+
+/**
+ * irdma_modify_qp_to_err - Modify a QP to error
+ * @sc_qp: qp structure
+ */
+void irdma_modify_qp_to_err(struct irdma_sc_qp *sc_qp)
+{
+ struct irdma_qp *qp = sc_qp->qp_uk.back_qp;
+ struct ib_qp_attr attr;
+
+ if (qp->iwdev->rf->reset)
+ return;
+ attr.qp_state = IB_QPS_ERR;
+
+ if (rdma_protocol_roce(qp->ibqp.device, 1))
+ irdma_modify_qp_roce(&qp->ibqp, &attr, IB_QP_STATE, NULL);
+ else
+ irdma_modify_qp(&qp->ibqp, &attr, IB_QP_STATE, NULL);
+}
+
+void irdma_ib_qp_event(struct irdma_qp *iwqp, enum irdma_qp_event_type event)
+{
+ struct ib_event ibevent;
+
+ if (!iwqp->ibqp.event_handler)
+ return;
+
+ switch (event) {
+ case IRDMA_QP_EVENT_CATASTROPHIC:
+ ibevent.event = IB_EVENT_QP_FATAL;
+ break;
+ case IRDMA_QP_EVENT_ACCESS_ERR:
+ ibevent.event = IB_EVENT_QP_ACCESS_ERR;
+ break;
+ case IRDMA_QP_EVENT_REQ_ERR:
+ ibevent.event = IB_EVENT_QP_REQ_ERR;
+ break;
+ }
+ ibevent.device = iwqp->ibqp.device;
+ ibevent.element.qp = &iwqp->ibqp;
+ iwqp->ibqp.event_handler(&ibevent, iwqp->ibqp.qp_context);
+}
+
+bool irdma_cq_empty(struct irdma_cq *iwcq)
+{
+ struct irdma_cq_uk *ukcq;
+ u64 qword3;
+ __le64 *cqe;
+ u8 polarity;
+
+ ukcq = &iwcq->sc_cq.cq_uk;
+ cqe = IRDMA_GET_CURRENT_CQ_ELEM(ukcq);
+ get_64bit_val(cqe, 24, &qword3);
+ polarity = (u8)FIELD_GET(IRDMA_CQ_VALID, qword3);
+
+ return polarity != ukcq->polarity;
+}
+
+void irdma_remove_cmpls_list(struct irdma_cq *iwcq)
+{
+ struct irdma_cmpl_gen *cmpl_node;
+ struct list_head *tmp_node, *list_node;
+
+ list_for_each_safe (list_node, tmp_node, &iwcq->cmpl_generated) {
+ cmpl_node = list_entry(list_node, struct irdma_cmpl_gen, list);
+ list_del(&cmpl_node->list);
+ kfree(cmpl_node);
+ }
+}
+
+int irdma_generated_cmpls(struct irdma_cq *iwcq, struct irdma_cq_poll_info *cq_poll_info)
+{
+ struct irdma_cmpl_gen *cmpl;
+
+ if (list_empty(&iwcq->cmpl_generated))
+ return -ENOENT;
+ cmpl = list_first_entry_or_null(&iwcq->cmpl_generated, struct irdma_cmpl_gen, list);
+ list_del(&cmpl->list);
+ memcpy(cq_poll_info, &cmpl->cpi, sizeof(*cq_poll_info));
+ kfree(cmpl);
+
+ ibdev_dbg(iwcq->ibcq.device,
+ "VERBS: %s: Poll artificially generated completion for QP 0x%X, op %u, wr_id=0x%llx\n",
+ __func__, cq_poll_info->qp_id, cq_poll_info->op_type,
+ cq_poll_info->wr_id);
+
+ return 0;
+}
+
+/**
+ * irdma_set_cpi_common_values - fill in values for polling info struct
+ * @cpi: resulting structure of cq_poll_info type
+ * @qp: QPair
+ * @qp_num: id of the QP
+ */
+static void irdma_set_cpi_common_values(struct irdma_cq_poll_info *cpi,
+ struct irdma_qp_uk *qp, u32 qp_num)
+{
+ cpi->comp_status = IRDMA_COMPL_STATUS_FLUSHED;
+ cpi->error = true;
+ cpi->major_err = IRDMA_FLUSH_MAJOR_ERR;
+ cpi->minor_err = FLUSH_GENERAL_ERR;
+ cpi->qp_handle = (irdma_qp_handle)(uintptr_t)qp;
+ cpi->qp_id = qp_num;
+}
+
+static inline void irdma_comp_handler(struct irdma_cq *cq)
+{
+ if (!cq->ibcq.comp_handler)
+ return;
+ if (atomic_cmpxchg(&cq->armed, 1, 0))
+ cq->ibcq.comp_handler(&cq->ibcq, cq->ibcq.cq_context);
+}
+
+void irdma_generate_flush_completions(struct irdma_qp *iwqp)
+{
+ struct irdma_qp_uk *qp = &iwqp->sc_qp.qp_uk;
+ struct irdma_ring *sq_ring = &qp->sq_ring;
+ struct irdma_ring *rq_ring = &qp->rq_ring;
+ struct irdma_cmpl_gen *cmpl;
+ __le64 *sw_wqe;
+ u64 wqe_qword;
+ u32 wqe_idx;
+ bool compl_generated = false;
+ unsigned long flags1;
+
+ spin_lock_irqsave(&iwqp->iwscq->lock, flags1);
+ if (irdma_cq_empty(iwqp->iwscq)) {
+ unsigned long flags2;
+
+ spin_lock_irqsave(&iwqp->lock, flags2);
+ while (IRDMA_RING_MORE_WORK(*sq_ring)) {
+ cmpl = kzalloc(sizeof(*cmpl), GFP_ATOMIC);
+ if (!cmpl) {
+ spin_unlock_irqrestore(&iwqp->lock, flags2);
+ spin_unlock_irqrestore(&iwqp->iwscq->lock, flags1);
+ return;
+ }
+
+ wqe_idx = sq_ring->tail;
+ irdma_set_cpi_common_values(&cmpl->cpi, qp, qp->qp_id);
+
+ cmpl->cpi.wr_id = qp->sq_wrtrk_array[wqe_idx].wrid;
+ sw_wqe = qp->sq_base[wqe_idx].elem;
+ get_64bit_val(sw_wqe, 24, &wqe_qword);
+ cmpl->cpi.op_type = (u8)FIELD_GET(IRDMAQPSQ_OPCODE, IRDMAQPSQ_OPCODE);
+ cmpl->cpi.q_type = IRDMA_CQE_QTYPE_SQ;
+ /* remove the SQ WR by moving SQ tail*/
+ IRDMA_RING_SET_TAIL(*sq_ring,
+ sq_ring->tail + qp->sq_wrtrk_array[sq_ring->tail].quanta);
+ if (cmpl->cpi.op_type == IRDMAQP_OP_NOP) {
+ kfree(cmpl);
+ continue;
+ }
+ ibdev_dbg(iwqp->iwscq->ibcq.device,
+ "DEV: %s: adding wr_id = 0x%llx SQ Completion to list qp_id=%d\n",
+ __func__, cmpl->cpi.wr_id, qp->qp_id);
+ list_add_tail(&cmpl->list, &iwqp->iwscq->cmpl_generated);
+ compl_generated = true;
+ }
+ spin_unlock_irqrestore(&iwqp->lock, flags2);
+ spin_unlock_irqrestore(&iwqp->iwscq->lock, flags1);
+ if (compl_generated)
+ irdma_comp_handler(iwqp->iwscq);
+ } else {
+ spin_unlock_irqrestore(&iwqp->iwscq->lock, flags1);
+ mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush,
+ msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS));
+ }
+
+ spin_lock_irqsave(&iwqp->iwrcq->lock, flags1);
+ if (irdma_cq_empty(iwqp->iwrcq)) {
+ unsigned long flags2;
+
+ spin_lock_irqsave(&iwqp->lock, flags2);
+ while (IRDMA_RING_MORE_WORK(*rq_ring)) {
+ cmpl = kzalloc(sizeof(*cmpl), GFP_ATOMIC);
+ if (!cmpl) {
+ spin_unlock_irqrestore(&iwqp->lock, flags2);
+ spin_unlock_irqrestore(&iwqp->iwrcq->lock, flags1);
+ return;
+ }
+
+ wqe_idx = rq_ring->tail;
+ irdma_set_cpi_common_values(&cmpl->cpi, qp, qp->qp_id);
+
+ cmpl->cpi.wr_id = qp->rq_wrid_array[wqe_idx];
+ cmpl->cpi.op_type = IRDMA_OP_TYPE_REC;
+ cmpl->cpi.q_type = IRDMA_CQE_QTYPE_RQ;
+ /* remove the RQ WR by moving RQ tail */
+ IRDMA_RING_SET_TAIL(*rq_ring, rq_ring->tail + 1);
+ ibdev_dbg(iwqp->iwrcq->ibcq.device,
+ "DEV: %s: adding wr_id = 0x%llx RQ Completion to list qp_id=%d, wqe_idx=%d\n",
+ __func__, cmpl->cpi.wr_id, qp->qp_id,
+ wqe_idx);
+ list_add_tail(&cmpl->list, &iwqp->iwrcq->cmpl_generated);
+
+ compl_generated = true;
+ }
+ spin_unlock_irqrestore(&iwqp->lock, flags2);
+ spin_unlock_irqrestore(&iwqp->iwrcq->lock, flags1);
+ if (compl_generated)
+ irdma_comp_handler(iwqp->iwrcq);
+ } else {
+ spin_unlock_irqrestore(&iwqp->iwrcq->lock, flags1);
+ mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush,
+ msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS));
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-01 06:11:24 +0000