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5d50f400e5
Sparse tool complains with the following error:
drivers/infiniband/hw/usnic/usnic_ib_main.c:445:16: warning: cast removes
address space of expression
Fix it by doing casting on correct field and convert function helper which
sets ifaddr to be void, because there are no users who are interested in
returned value.
Fixes: c7845bcafe ("IB/usnic: Add UDP support in u*verbs.c, u*main.c and u*util.h")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
130 lines
4.2 KiB
C
130 lines
4.2 KiB
C
/*
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* Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#ifndef USNIC_FWD_H_
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#define USNIC_FWD_H_
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#include <linux/if.h>
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#include <linux/netdevice.h>
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#include <linux/if_ether.h>
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#include <linux/pci.h>
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#include <linux/in.h>
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#include "usnic_abi.h"
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#include "usnic_common_pkt_hdr.h"
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#include "vnic_devcmd.h"
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struct usnic_fwd_dev {
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struct pci_dev *pdev;
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struct net_device *netdev;
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spinlock_t lock;
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/*
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* The following fields can be read directly off the device.
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* However, they should be set by a accessor function, except name,
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* which cannot be changed.
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*/
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bool link_up;
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char mac[ETH_ALEN];
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unsigned int mtu;
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__be32 inaddr;
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char name[IFNAMSIZ+1];
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};
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struct usnic_fwd_flow {
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uint32_t flow_id;
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struct usnic_fwd_dev *ufdev;
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unsigned int vnic_idx;
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};
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struct usnic_filter_action {
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int vnic_idx;
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struct filter_action action;
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};
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struct usnic_fwd_dev *usnic_fwd_dev_alloc(struct pci_dev *pdev);
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void usnic_fwd_dev_free(struct usnic_fwd_dev *ufdev);
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void usnic_fwd_set_mac(struct usnic_fwd_dev *ufdev, char mac[ETH_ALEN]);
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void usnic_fwd_add_ipaddr(struct usnic_fwd_dev *ufdev, __be32 inaddr);
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void usnic_fwd_del_ipaddr(struct usnic_fwd_dev *ufdev);
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void usnic_fwd_carrier_up(struct usnic_fwd_dev *ufdev);
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void usnic_fwd_carrier_down(struct usnic_fwd_dev *ufdev);
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void usnic_fwd_set_mtu(struct usnic_fwd_dev *ufdev, unsigned int mtu);
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/*
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* Allocate a flow on this forwarding device. Whoever calls this function,
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* must monitor netdev events on ufdev's netdevice. If NETDEV_REBOOT or
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* NETDEV_DOWN is seen, flow will no longer function and must be
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* immediately freed by calling usnic_dealloc_flow.
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*/
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struct usnic_fwd_flow*
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usnic_fwd_alloc_flow(struct usnic_fwd_dev *ufdev, struct filter *filter,
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struct usnic_filter_action *action);
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int usnic_fwd_dealloc_flow(struct usnic_fwd_flow *flow);
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int usnic_fwd_enable_qp(struct usnic_fwd_dev *ufdev, int vnic_idx, int qp_idx);
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int usnic_fwd_disable_qp(struct usnic_fwd_dev *ufdev, int vnic_idx, int qp_idx);
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static inline void usnic_fwd_init_usnic_filter(struct filter *filter,
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uint32_t usnic_id)
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{
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filter->type = FILTER_USNIC_ID;
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filter->u.usnic.ethtype = ETH_P_IBOE;
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filter->u.usnic.flags = FILTER_FIELD_USNIC_ETHTYPE |
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FILTER_FIELD_USNIC_ID |
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FILTER_FIELD_USNIC_PROTO;
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filter->u.usnic.proto_version = (USNIC_ROCE_GRH_VER <<
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USNIC_ROCE_GRH_VER_SHIFT) |
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USNIC_PROTO_VER;
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filter->u.usnic.usnic_id = usnic_id;
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}
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static inline void usnic_fwd_init_udp_filter(struct filter *filter,
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uint32_t daddr, uint16_t dport)
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{
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filter->type = FILTER_IPV4_5TUPLE;
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filter->u.ipv4.flags = FILTER_FIELD_5TUP_PROTO;
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filter->u.ipv4.protocol = PROTO_UDP;
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if (daddr) {
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filter->u.ipv4.flags |= FILTER_FIELD_5TUP_DST_AD;
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filter->u.ipv4.dst_addr = daddr;
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}
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if (dport) {
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filter->u.ipv4.flags |= FILTER_FIELD_5TUP_DST_PT;
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filter->u.ipv4.dst_port = dport;
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}
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}
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#endif /* !USNIC_FWD_H_ */
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