int enic_get_vnic_config(struct enic *enic)
{
struct vnic_enet_config *c = &enic->config;
int err;
err = vnic_dev_get_mac_addr(enic->vdev, enic->mac_addr);
if (err) {
dev_err(enic_get_dev(enic),
"Error getting MAC addr, %d\n", err);
return err;
}
#define GET_CONFIG(m) \
do { \
err = vnic_dev_spec(enic->vdev, \
offsetof(struct vnic_enet_config, m), \
sizeof(c->m), &c->m); \
if (err) { \
dev_err(enic_get_dev(enic), \
"Error getting %s, %d\n", #m, err); \
return err; \
} \
} while (0)
GET_CONFIG(flags);
GET_CONFIG(wq_desc_count);
GET_CONFIG(rq_desc_count);
GET_CONFIG(mtu);
GET_CONFIG(intr_timer_type);
GET_CONFIG(intr_mode);
GET_CONFIG(intr_timer_usec);
GET_CONFIG(loop_tag);
GET_CONFIG(num_arfs);
GET_CONFIG(max_pkt_size);
/* max packet size is only defined in newer VIC firmware
* and will be 0 for legacy firmware and VICs
*/
if (c->max_pkt_size > ENIC_DEFAULT_MAX_PKT_SIZE)
enic->max_mtu = c->max_pkt_size - (ETHER_HDR_LEN + 4);
else
enic->max_mtu = ENIC_DEFAULT_MAX_PKT_SIZE - (ETHER_HDR_LEN + 4);
if (c->mtu == 0)
c->mtu = 1500;
enic->rte_dev->data->mtu = min_t(u16, enic->max_mtu,
max_t(u16, ENIC_MIN_MTU, c->mtu));
enic->adv_filters = vnic_dev_capable_adv_filters(enic->vdev);
dev_info(enic, "Advanced Filters %savailable\n", ((enic->adv_filters)
? "" : "not "));
c->wq_desc_count =
min_t(u32, ENIC_MAX_WQ_DESCS,
max_t(u32, ENIC_MIN_WQ_DESCS,
c->wq_desc_count));
c->wq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
c->rq_desc_count =
min_t(u32, ENIC_MAX_RQ_DESCS,
max_t(u32, ENIC_MIN_RQ_DESCS,
c->rq_desc_count));
c->rq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
c->intr_timer_usec = min_t(u32, c->intr_timer_usec,
vnic_dev_get_intr_coal_timer_max(enic->vdev));
dev_info(enic_get_dev(enic),
"vNIC MAC addr %02x:%02x:%02x:%02x:%02x:%02x "
"wq/rq %d/%d mtu %d, max mtu:%d\n",
enic->mac_addr[0], enic->mac_addr[1], enic->mac_addr[2],
enic->mac_addr[3], enic->mac_addr[4], enic->mac_addr[5],
c->wq_desc_count, c->rq_desc_count,
enic->rte_dev->data->mtu, enic->max_mtu);
dev_info(enic_get_dev(enic), "vNIC csum tx/rx %s/%s "
"rss %s intr mode %s type %s timer %d usec "
"loopback tag 0x%04x\n",
ENIC_SETTING(enic, TXCSUM) ? "yes" : "no",
ENIC_SETTING(enic, RXCSUM) ? "yes" : "no",
ENIC_SETTING(enic, RSS) ? "yes" : "no",
c->intr_mode == VENET_INTR_MODE_INTX ? "INTx" :
c->intr_mode == VENET_INTR_MODE_MSI ? "MSI" :
c->intr_mode == VENET_INTR_MODE_ANY ? "any" :
"unknown",
c->intr_timer_type == VENET_INTR_TYPE_MIN ? "min" :
c->intr_timer_type == VENET_INTR_TYPE_IDLE ? "idle" :
"unknown",
c->intr_timer_usec,
c->loop_tag);
return 0;
}
int enic_get_vnic_config(struct enic *enic)
{
struct vnic_enet_config *c = &enic->config;
int err;
err = vnic_dev_get_mac_addr(enic->vdev, enic->mac_addr);
if (err) {
dev_err(enic_get_dev(enic),
"Error getting MAC addr, %d\n", err);
return err;
}
#define GET_CONFIG(m) \
do { \
err = vnic_dev_spec(enic->vdev, \
offsetof(struct vnic_enet_config, m), \
sizeof(c->m), &c->m); \
if (err) { \
dev_err(enic_get_dev(enic), \
"Error getting %s, %d\n", #m, err); \
return err; \
} \
} while (0)
GET_CONFIG(flags);
GET_CONFIG(wq_desc_count);
GET_CONFIG(rq_desc_count);
GET_CONFIG(mtu);
GET_CONFIG(intr_timer_type);
GET_CONFIG(intr_mode);
GET_CONFIG(intr_timer_usec);
GET_CONFIG(loop_tag);
c->wq_desc_count =
min_t(u32, ENIC_MAX_WQ_DESCS,
max_t(u32, ENIC_MIN_WQ_DESCS,
c->wq_desc_count));
c->wq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
c->rq_desc_count =
min_t(u32, ENIC_MAX_RQ_DESCS,
max_t(u32, ENIC_MIN_RQ_DESCS,
c->rq_desc_count));
c->rq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
if (c->mtu == 0)
c->mtu = 1500;
c->mtu = min_t(u16, ENIC_MAX_MTU,
max_t(u16, ENIC_MIN_MTU,
c->mtu));
c->intr_timer_usec = min_t(u32, c->intr_timer_usec,
vnic_dev_get_intr_coal_timer_max(enic->vdev));
dev_info(enic_get_dev(enic),
"vNIC MAC addr %pM wq/rq %d/%d mtu %d\n",
enic->mac_addr, c->wq_desc_count, c->rq_desc_count, c->mtu);
dev_info(enic_get_dev(enic), "vNIC csum tx/rx %s/%s "
"tso/lro %s/%s rss %s intr mode %s type %s timer %d usec "
"loopback tag 0x%04x\n",
ENIC_SETTING(enic, TXCSUM) ? "yes" : "no",
ENIC_SETTING(enic, RXCSUM) ? "yes" : "no",
ENIC_SETTING(enic, TSO) ? "yes" : "no",
ENIC_SETTING(enic, LRO) ? "yes" : "no",
ENIC_SETTING(enic, RSS) ? "yes" : "no",
c->intr_mode == VENET_INTR_MODE_INTX ? "INTx" :
c->intr_mode == VENET_INTR_MODE_MSI ? "MSI" :
c->intr_mode == VENET_INTR_MODE_ANY ? "any" :
"unknown",
c->intr_timer_type == VENET_INTR_TYPE_MIN ? "min" :
c->intr_timer_type == VENET_INTR_TYPE_IDLE ? "idle" :
"unknown",
c->intr_timer_usec,
c->loop_tag);
return 0;
}
static int enic_set_coalesce(struct net_device *netdev,
struct ethtool_coalesce *ecmd)
{
struct enic *enic = netdev_priv(netdev);
u32 tx_coalesce_usecs;
u32 rx_coalesce_usecs;
u32 rx_coalesce_usecs_low;
u32 rx_coalesce_usecs_high;
u32 coalesce_usecs_max;
unsigned int i, intr;
struct enic_rx_coal *rxcoal = &enic->rx_coalesce_setting;
coalesce_usecs_max = vnic_dev_get_intr_coal_timer_max(enic->vdev);
tx_coalesce_usecs = min_t(u32, ecmd->tx_coalesce_usecs,
coalesce_usecs_max);
rx_coalesce_usecs = min_t(u32, ecmd->rx_coalesce_usecs,
coalesce_usecs_max);
rx_coalesce_usecs_low = min_t(u32, ecmd->rx_coalesce_usecs_low,
coalesce_usecs_max);
rx_coalesce_usecs_high = min_t(u32, ecmd->rx_coalesce_usecs_high,
coalesce_usecs_max);
switch (vnic_dev_get_intr_mode(enic->vdev)) {
case VNIC_DEV_INTR_MODE_INTX:
if (tx_coalesce_usecs != rx_coalesce_usecs)
return -EINVAL;
if (ecmd->use_adaptive_rx_coalesce ||
ecmd->rx_coalesce_usecs_low ||
ecmd->rx_coalesce_usecs_high)
return -EINVAL;
intr = enic_legacy_io_intr();
vnic_intr_coalescing_timer_set(&enic->intr[intr],
tx_coalesce_usecs);
break;
case VNIC_DEV_INTR_MODE_MSI:
if (tx_coalesce_usecs != rx_coalesce_usecs)
return -EINVAL;
if (ecmd->use_adaptive_rx_coalesce ||
ecmd->rx_coalesce_usecs_low ||
ecmd->rx_coalesce_usecs_high)
return -EINVAL;
vnic_intr_coalescing_timer_set(&enic->intr[0],
tx_coalesce_usecs);
break;
case VNIC_DEV_INTR_MODE_MSIX:
if (ecmd->rx_coalesce_usecs_high &&
(rx_coalesce_usecs_high <
rx_coalesce_usecs_low + ENIC_AIC_LARGE_PKT_DIFF))
return -EINVAL;
for (i = 0; i < enic->wq_count; i++) {
intr = enic_msix_wq_intr(enic, i);
vnic_intr_coalescing_timer_set(&enic->intr[intr],
tx_coalesce_usecs);
}
rxcoal->use_adaptive_rx_coalesce =
!!ecmd->use_adaptive_rx_coalesce;
if (!rxcoal->use_adaptive_rx_coalesce)
enic_intr_coal_set_rx(enic, rx_coalesce_usecs);
if (ecmd->rx_coalesce_usecs_high) {
rxcoal->range_end = rx_coalesce_usecs_high;
rxcoal->small_pkt_range_start = rx_coalesce_usecs_low;
rxcoal->large_pkt_range_start = rx_coalesce_usecs_low +
ENIC_AIC_LARGE_PKT_DIFF;
}
break;
default:
break;
}
enic->tx_coalesce_usecs = tx_coalesce_usecs;
enic->rx_coalesce_usecs = rx_coalesce_usecs;
return 0;
}
