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Add support for MTU chaning and Jumbo frames to VNIC

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Enable previously added code for MTU handling (based on
Cavium 1.0 driver released on BSD license).
This commit enables possibility to change MTU on VNIC driver.

Obtained from: Semihalf
Sponsored by:  Cavium
This commit is contained in:
Zbigniew Bodek 2016-05-11 13:42:20 +00:00
parent f6cdb4ceb3
commit 0ef477ea8c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=299447
1 changed files with 24 additions and 6 deletions
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30
sys/dev/vnic/nicvf_main.c
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@ -138,6 +138,7 @@ static int nicvf_allocate_misc_interrupt(struct nicvf *);
static int nicvf_enable_misc_interrupt(struct nicvf *);
static int nicvf_allocate_net_interrupts(struct nicvf *);
static void nicvf_release_all_interrupts(struct nicvf *);
static int nicvf_update_hw_max_frs(struct nicvf *, int);
static int nicvf_hw_set_mac_addr(struct nicvf *, uint8_t *);
static void nicvf_config_cpi(struct nicvf *);
static int nicvf_rss_init(struct nicvf *);
@ -362,7 +363,7 @@ nicvf_setup_ifnet(struct nicvf *nic)
if_setcapabilities(ifp, 0);
/* Set the default values */
if_setcapabilitiesbit(ifp, IFCAP_VLAN_MTU, 0);
if_setcapabilitiesbit(ifp, IFCAP_VLAN_MTU | IFCAP_JUMBO_MTU, 0);
if_setcapabilitiesbit(ifp, IFCAP_LRO, 0);
if (nic->hw_tso) {
/* TSO */
@ -465,11 +466,16 @@ nicvf_if_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
err = ether_ioctl(ifp, cmd, data);
break;
case SIOCSIFMTU:
/*
* ARM64TODO: Needs to be implemented.
* Currently ETHERMTU is set by default.
*/
err = ether_ioctl(ifp, cmd, data);
if (ifr->ifr_mtu < NIC_HW_MIN_FRS ||
ifr->ifr_mtu > NIC_HW_MAX_FRS) {
err = EINVAL;
} else {
NICVF_CORE_LOCK(nic);
err = nicvf_update_hw_max_frs(nic, ifr->ifr_mtu);
if (err == 0)
if_setmtu(ifp, ifr->ifr_mtu);
NICVF_CORE_UNLOCK(nic);
}
break;
case SIOCSIFFLAGS:
NICVF_CORE_LOCK(nic);
@ -973,6 +979,18 @@ nicvf_handle_mbx_intr(struct nicvf *nic)
nicvf_clear_intr(nic, NICVF_INTR_MBOX, 0);
}
static int
nicvf_update_hw_max_frs(struct nicvf *nic, int mtu)
{
union nic_mbx mbx = {};
mbx.frs.msg = NIC_MBOX_MSG_SET_MAX_FRS;
mbx.frs.max_frs = mtu;
mbx.frs.vf_id = nic->vf_id;
return nicvf_send_msg_to_pf(nic, &mbx);
}
static int
nicvf_hw_set_mac_addr(struct nicvf *nic, uint8_t *hwaddr)
{