diff options
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_nvmetcp_ip_services.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_nvmetcp_ip_services.c | 238 |
1 files changed, 0 insertions, 238 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_nvmetcp_ip_services.c b/drivers/net/ethernet/qlogic/qed/qed_nvmetcp_ip_services.c deleted file mode 100644 index 96a2077fd315..000000000000 --- a/drivers/net/ethernet/qlogic/qed/qed_nvmetcp_ip_services.c +++ /dev/null @@ -1,238 +0,0 @@ -// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) -/* - * Copyright 2021 Marvell. All rights reserved. - */ - -#include <linux/types.h> -#include <asm/byteorder.h> -#include <asm/param.h> -#include <linux/delay.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> -#include <linux/etherdevice.h> -#include <linux/kernel.h> -#include <linux/stddef.h> -#include <linux/errno.h> - -#include <net/tcp.h> - -#include <linux/qed/qed_nvmetcp_ip_services_if.h> - -#define QED_IP_RESOL_TIMEOUT 4 - -int qed_route_ipv4(struct sockaddr_storage *local_addr, - struct sockaddr_storage *remote_addr, - struct sockaddr *hardware_address, - struct net_device **ndev) -{ - struct neighbour *neigh = NULL; - __be32 *loc_ip, *rem_ip; - struct rtable *rt; - int rc = -ENXIO; - int retry; - - loc_ip = &((struct sockaddr_in *)local_addr)->sin_addr.s_addr; - rem_ip = &((struct sockaddr_in *)remote_addr)->sin_addr.s_addr; - *ndev = NULL; - rt = ip_route_output(&init_net, *rem_ip, *loc_ip, 0/*tos*/, 0/*oif*/); - if (IS_ERR(rt)) { - pr_err("lookup route failed\n"); - rc = PTR_ERR(rt); - goto return_err; - } - - neigh = dst_neigh_lookup(&rt->dst, rem_ip); - if (!neigh) { - rc = -ENOMEM; - ip_rt_put(rt); - goto return_err; - } - - *ndev = rt->dst.dev; - ip_rt_put(rt); - - /* If not resolved, kick-off state machine towards resolution */ - if (!(neigh->nud_state & NUD_VALID)) - neigh_event_send(neigh, NULL); - - /* query neighbor until resolved or timeout */ - retry = QED_IP_RESOL_TIMEOUT; - while (!(neigh->nud_state & NUD_VALID) && retry > 0) { - msleep(1000); - retry--; - } - - if (neigh->nud_state & NUD_VALID) { - /* copy resolved MAC address */ - neigh_ha_snapshot(hardware_address->sa_data, neigh, *ndev); - hardware_address->sa_family = (*ndev)->type; - rc = 0; - } - - neigh_release(neigh); - if (!(*loc_ip)) { - *loc_ip = inet_select_addr(*ndev, *rem_ip, RT_SCOPE_UNIVERSE); - local_addr->ss_family = AF_INET; - } - -return_err: - - return rc; -} -EXPORT_SYMBOL(qed_route_ipv4); - -int qed_route_ipv6(struct sockaddr_storage *local_addr, - struct sockaddr_storage *remote_addr, - struct sockaddr *hardware_address, - struct net_device **ndev) -{ - struct neighbour *neigh = NULL; - struct dst_entry *dst; - struct flowi6 fl6; - int rc = -ENXIO; - int retry; - - memset(&fl6, 0, sizeof(fl6)); - fl6.saddr = ((struct sockaddr_in6 *)local_addr)->sin6_addr; - fl6.daddr = ((struct sockaddr_in6 *)remote_addr)->sin6_addr; - dst = ip6_route_output(&init_net, NULL, &fl6); - if (!dst || dst->error) { - if (dst) { - dst_release(dst); - pr_err("lookup route failed %d\n", dst->error); - } - - goto out; - } - - neigh = dst_neigh_lookup(dst, &fl6.daddr); - if (neigh) { - *ndev = ip6_dst_idev(dst)->dev; - - /* If not resolved, kick-off state machine towards resolution */ - if (!(neigh->nud_state & NUD_VALID)) - neigh_event_send(neigh, NULL); - - /* query neighbor until resolved or timeout */ - retry = QED_IP_RESOL_TIMEOUT; - while (!(neigh->nud_state & NUD_VALID) && retry > 0) { - msleep(1000); - retry--; - } - - if (neigh->nud_state & NUD_VALID) { - neigh_ha_snapshot((u8 *)hardware_address->sa_data, - neigh, *ndev); - hardware_address->sa_family = (*ndev)->type; - rc = 0; - } - - neigh_release(neigh); - - if (ipv6_addr_any(&fl6.saddr)) { - if (ipv6_dev_get_saddr(dev_net(*ndev), *ndev, - &fl6.daddr, 0, &fl6.saddr)) { - pr_err("Unable to find source IP address\n"); - goto out; - } - - local_addr->ss_family = AF_INET6; - ((struct sockaddr_in6 *)local_addr)->sin6_addr = - fl6.saddr; - } - } - - dst_release(dst); - -out: - - return rc; -} -EXPORT_SYMBOL(qed_route_ipv6); - -void qed_vlan_get_ndev(struct net_device **ndev, u16 *vlan_id) -{ - if (is_vlan_dev(*ndev)) { - *vlan_id = vlan_dev_vlan_id(*ndev); - *ndev = vlan_dev_real_dev(*ndev); - } -} -EXPORT_SYMBOL(qed_vlan_get_ndev); - -struct pci_dev *qed_validate_ndev(struct net_device *ndev) -{ - struct pci_dev *pdev = NULL; - struct net_device *upper; - - for_each_pci_dev(pdev) { - if (pdev && pdev->driver && - !strcmp(pdev->driver->name, "qede")) { - upper = pci_get_drvdata(pdev); - if (upper->ifindex == ndev->ifindex) - return pdev; - } - } - - return NULL; -} -EXPORT_SYMBOL(qed_validate_ndev); - -__be16 qed_get_in_port(struct sockaddr_storage *sa) -{ - return sa->ss_family == AF_INET - ? ((struct sockaddr_in *)sa)->sin_port - : ((struct sockaddr_in6 *)sa)->sin6_port; -} -EXPORT_SYMBOL(qed_get_in_port); - -int qed_fetch_tcp_port(struct sockaddr_storage local_ip_addr, - struct socket **sock, u16 *port) -{ - struct sockaddr_storage sa; - int rc = 0; - - rc = sock_create(local_ip_addr.ss_family, SOCK_STREAM, IPPROTO_TCP, - sock); - if (rc) { - pr_warn("failed to create socket: %d\n", rc); - goto err; - } - - (*sock)->sk->sk_allocation = GFP_KERNEL; - sk_set_memalloc((*sock)->sk); - - rc = kernel_bind(*sock, (struct sockaddr *)&local_ip_addr, - sizeof(local_ip_addr)); - - if (rc) { - pr_warn("failed to bind socket: %d\n", rc); - goto err_sock; - } - - rc = kernel_getsockname(*sock, (struct sockaddr *)&sa); - if (rc < 0) { - pr_warn("getsockname() failed: %d\n", rc); - goto err_sock; - } - - *port = ntohs(qed_get_in_port(&sa)); - - return 0; - -err_sock: - sock_release(*sock); - sock = NULL; -err: - - return rc; -} -EXPORT_SYMBOL(qed_fetch_tcp_port); - -void qed_return_tcp_port(struct socket *sock) -{ - if (sock && sock->sk) { - tcp_set_state(sock->sk, TCP_CLOSE); - sock_release(sock); - } -} -EXPORT_SYMBOL(qed_return_tcp_port); |