diff options
author | Manish Chopra <manish.chopra@qlogic.com> | 2016-06-30 09:35:21 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2016-07-01 12:40:53 +0300 |
commit | 3d789994b0ae5a148e9d0c3317be21c597462d86 (patch) | |
tree | 422d96cb096a905b6325278f4de623a1ea5c4422 /drivers/net/ethernet/qlogic/qede | |
parent | 312e06761c9976c81bd1e487a2c03dce7c07c102 (diff) | |
download | linux-3d789994b0ae5a148e9d0c3317be21c597462d86.tar.xz |
qede: Add get/set rx copy break tunable support
Signed-off-by: Manish <manish.chopra@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qede')
-rw-r--r-- | drivers/net/ethernet/qlogic/qede/qede.h | 3 | ||||
-rw-r--r-- | drivers/net/ethernet/qlogic/qede/qede_ethtool.c | 46 | ||||
-rw-r--r-- | drivers/net/ethernet/qlogic/qede/qede_main.c | 3 |
3 files changed, 51 insertions, 1 deletions
diff --git a/drivers/net/ethernet/qlogic/qede/qede.h b/drivers/net/ethernet/qlogic/qede/qede.h index 677213ef7f0c..4e3f1a093523 100644 --- a/drivers/net/ethernet/qlogic/qede/qede.h +++ b/drivers/net/ethernet/qlogic/qede/qede.h @@ -143,6 +143,8 @@ struct qede_dev { struct mutex qede_lock; u32 state; /* Protected by qede_lock */ u16 rx_buf_size; + u32 rx_copybreak; + /* L2 header size + 2*VLANs (8 bytes) + LLC SNAP (8 bytes) */ #define ETH_OVERHEAD (ETH_HLEN + 8 + 8) /* Max supported alignment is 256 (8 shift) @@ -333,6 +335,7 @@ void qede_recycle_rx_bd_ring(struct qede_rx_queue *rxq, struct qede_dev *edev, #define NUM_TX_BDS_MIN 128 #define NUM_TX_BDS_DEF NUM_TX_BDS_MAX +#define QEDE_MIN_PKT_LEN 64 #define QEDE_RX_HDR_SIZE 256 #define for_each_rss(i) for (i = 0; i < edev->num_rss; i++) diff --git a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c index 85633cf72d87..f8492cac9290 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c +++ b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c @@ -1185,6 +1185,48 @@ static void qede_self_test(struct net_device *dev, } } +static int qede_set_tunable(struct net_device *dev, + const struct ethtool_tunable *tuna, + const void *data) +{ + struct qede_dev *edev = netdev_priv(dev); + u32 val; + + switch (tuna->id) { + case ETHTOOL_RX_COPYBREAK: + val = *(u32 *)data; + if (val < QEDE_MIN_PKT_LEN || val > QEDE_RX_HDR_SIZE) { + DP_VERBOSE(edev, QED_MSG_DEBUG, + "Invalid rx copy break value, range is [%u, %u]", + QEDE_MIN_PKT_LEN, QEDE_RX_HDR_SIZE); + return -EINVAL; + } + + edev->rx_copybreak = *(u32 *)data; + break; + default: + return -EOPNOTSUPP; + } + + return 0; +} + +static int qede_get_tunable(struct net_device *dev, + const struct ethtool_tunable *tuna, void *data) +{ + struct qede_dev *edev = netdev_priv(dev); + + switch (tuna->id) { + case ETHTOOL_RX_COPYBREAK: + *(u32 *)data = edev->rx_copybreak; + break; + default: + return -EOPNOTSUPP; + } + + return 0; +} + static const struct ethtool_ops qede_ethtool_ops = { .get_settings = qede_get_settings, .set_settings = qede_set_settings, @@ -1213,6 +1255,8 @@ static const struct ethtool_ops qede_ethtool_ops = { .get_channels = qede_get_channels, .set_channels = qede_set_channels, .self_test = qede_self_test, + .get_tunable = qede_get_tunable, + .set_tunable = qede_set_tunable, }; static const struct ethtool_ops qede_vf_ethtool_ops = { @@ -1235,6 +1279,8 @@ static const struct ethtool_ops qede_vf_ethtool_ops = { .set_rxfh = qede_set_rxfh, .get_channels = qede_get_channels, .set_channels = qede_set_channels, + .get_tunable = qede_get_tunable, + .set_tunable = qede_set_tunable, }; void qede_set_ethtool_ops(struct net_device *dev) diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c index ea2df1460ea4..91e7bb0b85c8 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_main.c +++ b/drivers/net/ethernet/qlogic/qede/qede_main.c @@ -1474,7 +1474,7 @@ alloc_skb: } /* Copy data into SKB */ - if (len + pad <= QEDE_RX_HDR_SIZE) { + if (len + pad <= edev->rx_copybreak) { memcpy(skb_put(skb, len), page_address(data) + pad + sw_rx_data->page_offset, len); @@ -2519,6 +2519,7 @@ static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level, INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task); mutex_init(&edev->qede_lock); + edev->rx_copybreak = QEDE_RX_HDR_SIZE; DP_INFO(edev, "Ending successfully qede probe\n"); |