ed6e564c21
If a packet send is attempted with a packet larger than the NIC
is capable of processing (9208) it will be dropped with no
completion descriptor returned or completion index update, which
will lead to an mbuf leak and eventual hang.
Drop and count oversized Tx packets in the Tx burst function and
dereference/free the mbuf without sending it to the NIC.
Since the maximum Rx and Tx packet sizes are different on enic
and are now both being used, make the define ENIC_DEFAULT_MAX_PKT_SIZE
be 2 defines, one for Rx and one for Tx.
Fixes: fefed3d1e6 ("enic: new driver")
Cc: stable@dpdk.org
Signed-off-by: John Daley <johndale@cisco.com>
235 lines
6.7 KiB
C
235 lines
6.7 KiB
C
/*
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* Copyright 2008-2010 Cisco Systems, Inc. All rights reserved.
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* Copyright 2007 Nuova Systems, Inc. All rights reserved.
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*
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* Copyright (c) 2014, Cisco Systems, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "enic_compat.h"
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#include "rte_ethdev.h"
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#include "wq_enet_desc.h"
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#include "rq_enet_desc.h"
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#include "cq_enet_desc.h"
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#include "vnic_resource.h"
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#include "vnic_enet.h"
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#include "vnic_dev.h"
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#include "vnic_wq.h"
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#include "vnic_rq.h"
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#include "vnic_cq.h"
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#include "vnic_intr.h"
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#include "vnic_stats.h"
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#include "vnic_nic.h"
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#include "vnic_rss.h"
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#include "enic_res.h"
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#include "enic.h"
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int enic_get_vnic_config(struct enic *enic)
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{
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struct vnic_enet_config *c = &enic->config;
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int err;
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err = vnic_dev_get_mac_addr(enic->vdev, enic->mac_addr);
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if (err) {
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dev_err(enic_get_dev(enic),
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"Error getting MAC addr, %d\n", err);
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return err;
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}
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#define GET_CONFIG(m) \
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do { \
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err = vnic_dev_spec(enic->vdev, \
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offsetof(struct vnic_enet_config, m), \
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sizeof(c->m), &c->m); \
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if (err) { \
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dev_err(enic_get_dev(enic), \
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"Error getting %s, %d\n", #m, err); \
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return err; \
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} \
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} while (0)
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GET_CONFIG(flags);
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GET_CONFIG(wq_desc_count);
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GET_CONFIG(rq_desc_count);
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GET_CONFIG(mtu);
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GET_CONFIG(intr_timer_type);
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GET_CONFIG(intr_mode);
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GET_CONFIG(intr_timer_usec);
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GET_CONFIG(loop_tag);
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GET_CONFIG(num_arfs);
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GET_CONFIG(max_pkt_size);
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/* max packet size is only defined in newer VIC firmware
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* and will be 0 for legacy firmware and VICs
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*/
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if (c->max_pkt_size > ENIC_DEFAULT_RX_MAX_PKT_SIZE)
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enic->max_mtu = c->max_pkt_size - (ETHER_HDR_LEN + 4);
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else
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enic->max_mtu = ENIC_DEFAULT_RX_MAX_PKT_SIZE
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- (ETHER_HDR_LEN + 4);
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if (c->mtu == 0)
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c->mtu = 1500;
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enic->rte_dev->data->mtu = min_t(u16, enic->max_mtu,
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max_t(u16, ENIC_MIN_MTU, c->mtu));
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enic->adv_filters = vnic_dev_capable_adv_filters(enic->vdev);
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dev_info(enic, "Advanced Filters %savailable\n", ((enic->adv_filters)
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? "" : "not "));
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c->wq_desc_count =
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min_t(u32, ENIC_MAX_WQ_DESCS,
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max_t(u32, ENIC_MIN_WQ_DESCS,
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c->wq_desc_count));
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c->wq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
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c->rq_desc_count =
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min_t(u32, ENIC_MAX_RQ_DESCS,
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max_t(u32, ENIC_MIN_RQ_DESCS,
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c->rq_desc_count));
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c->rq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
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c->intr_timer_usec = min_t(u32, c->intr_timer_usec,
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vnic_dev_get_intr_coal_timer_max(enic->vdev));
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dev_info(enic_get_dev(enic),
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"vNIC MAC addr %02x:%02x:%02x:%02x:%02x:%02x "
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"wq/rq %d/%d mtu %d, max mtu:%d\n",
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enic->mac_addr[0], enic->mac_addr[1], enic->mac_addr[2],
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enic->mac_addr[3], enic->mac_addr[4], enic->mac_addr[5],
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c->wq_desc_count, c->rq_desc_count,
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enic->rte_dev->data->mtu, enic->max_mtu);
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dev_info(enic_get_dev(enic), "vNIC csum tx/rx %s/%s "
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"rss %s intr mode %s type %s timer %d usec "
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"loopback tag 0x%04x\n",
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ENIC_SETTING(enic, TXCSUM) ? "yes" : "no",
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ENIC_SETTING(enic, RXCSUM) ? "yes" : "no",
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ENIC_SETTING(enic, RSS) ? "yes" : "no",
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c->intr_mode == VENET_INTR_MODE_INTX ? "INTx" :
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c->intr_mode == VENET_INTR_MODE_MSI ? "MSI" :
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c->intr_mode == VENET_INTR_MODE_ANY ? "any" :
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"unknown",
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c->intr_timer_type == VENET_INTR_TYPE_MIN ? "min" :
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c->intr_timer_type == VENET_INTR_TYPE_IDLE ? "idle" :
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"unknown",
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c->intr_timer_usec,
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c->loop_tag);
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return 0;
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}
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int enic_add_vlan(struct enic *enic, u16 vlanid)
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{
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u64 a0 = vlanid, a1 = 0;
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int wait = 1000;
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int err;
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err = vnic_dev_cmd(enic->vdev, CMD_VLAN_ADD, &a0, &a1, wait);
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if (err)
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dev_err(enic_get_dev(enic), "Can't add vlan id, %d\n", err);
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return err;
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}
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int enic_del_vlan(struct enic *enic, u16 vlanid)
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{
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u64 a0 = vlanid, a1 = 0;
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int wait = 1000;
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int err;
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err = vnic_dev_cmd(enic->vdev, CMD_VLAN_DEL, &a0, &a1, wait);
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if (err)
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dev_err(enic_get_dev(enic), "Can't delete vlan id, %d\n", err);
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return err;
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}
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int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
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u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
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u8 ig_vlan_strip_en)
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{
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u64 a0, a1;
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u32 nic_cfg;
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int wait = 1000;
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vnic_set_nic_cfg(&nic_cfg, rss_default_cpu,
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rss_hash_type, rss_hash_bits, rss_base_cpu,
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rss_enable, tso_ipid_split_en, ig_vlan_strip_en);
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a0 = nic_cfg;
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a1 = 0;
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return vnic_dev_cmd(enic->vdev, CMD_NIC_CFG, &a0, &a1, wait);
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}
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int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len)
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{
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u64 a0 = (u64)key_pa, a1 = len;
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int wait = 1000;
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return vnic_dev_cmd(enic->vdev, CMD_RSS_KEY, &a0, &a1, wait);
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}
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int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len)
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{
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u64 a0 = (u64)cpu_pa, a1 = len;
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int wait = 1000;
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return vnic_dev_cmd(enic->vdev, CMD_RSS_CPU, &a0, &a1, wait);
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}
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void enic_free_vnic_resources(struct enic *enic)
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{
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unsigned int i;
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for (i = 0; i < enic->wq_count; i++)
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vnic_wq_free(&enic->wq[i]);
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for (i = 0; i < enic_vnic_rq_count(enic); i++)
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if (enic->rq[i].in_use)
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vnic_rq_free(&enic->rq[i]);
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for (i = 0; i < enic->cq_count; i++)
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vnic_cq_free(&enic->cq[i]);
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vnic_intr_free(&enic->intr);
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}
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void enic_get_res_counts(struct enic *enic)
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{
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enic->conf_wq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_WQ);
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enic->conf_rq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_RQ);
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enic->conf_cq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_CQ);
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enic->conf_intr_count = vnic_dev_get_res_count(enic->vdev,
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RES_TYPE_INTR_CTRL);
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dev_info(enic_get_dev(enic),
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"vNIC resources avail: wq %d rq %d cq %d intr %d\n",
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enic->conf_wq_count, enic->conf_rq_count,
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enic->conf_cq_count, enic->conf_intr_count);
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}
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