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qlcnic: Enhance channel configuration logs 

o Add logs for various failure conditions during channel configuration.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Manish Chopra 2013-04-24 12:42:39 +00:00 committed by David S. Miller
parent 01f27fc085
commit 6389b76dfd
3 changed files with 28 additions and 8 deletions
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2
drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
View File

@ -1474,7 +1474,7 @@ void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings);
int qlcnic_diag_alloc_res(struct net_device *netdev, int test);
netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev);
int qlcnic_set_max_rss(struct qlcnic_adapter *, u8, size_t);
int qlcnic_validate_max_rss(u8, u8);
int qlcnic_validate_max_rss(struct qlcnic_adapter *, __u32);
void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter);
int qlcnic_enable_msix(struct qlcnic_adapter *, u32);

2
drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
View File

@ -635,7 +635,7 @@ static int qlcnic_set_channels(struct net_device *dev,
channel->tx_count != channel->max_tx)
return -EINVAL;
err = qlcnic_validate_max_rss(channel->max_rx, channel->rx_count);
err = qlcnic_validate_max_rss(adapter, channel->rx_count);
if (err)
return err;

32
drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
View File

@ -3273,20 +3273,40 @@ qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
return err;
}
int qlcnic_validate_max_rss(u8 max_hw, u8 val)
int qlcnic_validate_max_rss(struct qlcnic_adapter *adapter,
__u32 val)
{
struct net_device *netdev = adapter->netdev;
u8 max_hw = adapter->ahw->max_rx_ques;
u32 max_allowed;
if (max_hw > QLC_MAX_SDS_RINGS) {
max_hw = QLC_MAX_SDS_RINGS;
pr_info("max rss reset to %d\n", QLC_MAX_SDS_RINGS);
if (val > QLC_MAX_SDS_RINGS) {
netdev_err(netdev, "RSS value should not be higher than %u\n",
QLC_MAX_SDS_RINGS);
return -EINVAL;
}
max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
num_online_cpus()));
if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
pr_info("rss_ring valid range [2 - %x] in powers of 2\n",
max_allowed);
if (!is_power_of_2(val))
netdev_err(netdev, "RSS value should be a power of 2\n");
if (val < 2)
netdev_err(netdev, "RSS value should not be lower than 2\n");
if (val > max_hw)
netdev_err(netdev,
"RSS value should not be higher than[%u], the max RSS rings supported by the adapter\n",
max_hw);
if (val > num_online_cpus())
netdev_err(netdev,
"RSS value should not be higher than[%u], number of online CPUs in the system\n",
num_online_cpus());
netdev_err(netdev, "Unable to configure %u RSS rings\n", val);
return -EINVAL;
}
return 0;