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qlcnic: reduce rx ring size 

If eswitch is enabled, rcv ring size can be reduce, as
physical port is partition-ed.

Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sony Chacko 2010-10-26 17:53:08 +00:00 committed by David S. Miller
parent e5edb7b19f
commit 90d1900555
3 changed files with 21 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/qlcnic/qlcnic.h
View File

@ -146,11 +146,13 @@
#define MAX_CMD_DESCRIPTORS 1024
#define MAX_RCV_DESCRIPTORS_1G 4096
#define MAX_RCV_DESCRIPTORS_10G 8192
#define MAX_RCV_DESCRIPTORS_VF 2048
#define MAX_JUMBO_RCV_DESCRIPTORS_1G 512
#define MAX_JUMBO_RCV_DESCRIPTORS_10G 1024
#define DEFAULT_RCV_DESCRIPTORS_1G 2048
#define DEFAULT_RCV_DESCRIPTORS_10G 4096
#define DEFAULT_RCV_DESCRIPTORS_VF 1024
#define MAX_RDS_RINGS 2
#define get_next_index(index, length) \
@ -971,6 +973,8 @@ struct qlcnic_adapter {
u16 num_txd;
u16 num_rxd;
u16 num_jumbo_rxd;
u16 max_rxd;
u16 max_jumbo_rxd;
u8 max_rds_rings;
u8 max_sds_rings;

23
drivers/net/qlcnic/qlcnic_ethtool.c
View File

@ -437,14 +437,8 @@ qlcnic_get_ringparam(struct net_device *dev,
ring->rx_jumbo_pending = adapter->num_jumbo_rxd;
ring->tx_pending = adapter->num_txd;
if (adapter->ahw.port_type == QLCNIC_GBE) {
ring->rx_max_pending = MAX_RCV_DESCRIPTORS_1G;
ring->rx_jumbo_max_pending = MAX_JUMBO_RCV_DESCRIPTORS_1G;
} else {
ring->rx_max_pending = MAX_RCV_DESCRIPTORS_10G;
ring->rx_jumbo_max_pending = MAX_JUMBO_RCV_DESCRIPTORS_10G;
}
ring->rx_max_pending = adapter->max_rxd;
ring->rx_jumbo_max_pending = adapter->max_jumbo_rxd;
ring->tx_max_pending = MAX_CMD_DESCRIPTORS;
ring->rx_mini_max_pending = 0;
@ -472,24 +466,17 @@ qlcnic_set_ringparam(struct net_device *dev,
struct ethtool_ringparam *ring)
{
struct qlcnic_adapter *adapter = netdev_priv(dev);
u16 max_rcv_desc = MAX_RCV_DESCRIPTORS_10G;
u16 max_jumbo_desc = MAX_JUMBO_RCV_DESCRIPTORS_10G;
u16 num_rxd, num_jumbo_rxd, num_txd;
if (ring->rx_mini_pending)
return -EOPNOTSUPP;
if (adapter->ahw.port_type == QLCNIC_GBE) {
max_rcv_desc = MAX_RCV_DESCRIPTORS_1G;
max_jumbo_desc = MAX_JUMBO_RCV_DESCRIPTORS_10G;
}
num_rxd = qlcnic_validate_ringparam(ring->rx_pending,
MIN_RCV_DESCRIPTORS, max_rcv_desc, "rx");
MIN_RCV_DESCRIPTORS, adapter->max_rxd, "rx");
num_jumbo_rxd = qlcnic_validate_ringparam(ring->rx_jumbo_pending,
MIN_JUMBO_DESCRIPTORS, max_jumbo_desc, "rx jumbo");
MIN_JUMBO_DESCRIPTORS, adapter->max_jumbo_rxd,
"rx jumbo");
num_txd = qlcnic_validate_ringparam(ring->tx_pending,
MIN_CMD_DESCRIPTORS, MAX_CMD_DESCRIPTORS, "tx");

14
drivers/net/qlcnic/qlcnic_main.c
View File

@ -656,13 +656,23 @@ qlcnic_check_options(struct qlcnic_adapter *adapter)
dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
fw_major, fw_minor, fw_build);
if (adapter->ahw.port_type == QLCNIC_XGBE) {
adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
} else {
adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
}
adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
} else if (adapter->ahw.port_type == QLCNIC_GBE) {
adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
}
adapter->msix_supported = !!use_msi_x;