diff options
| author | Shradha Gupta <shradhagupta@linux.microsoft.com> | 2023-06-05 04:30:06 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-06-07 09:46:49 +0100 |
| commit | 4cab498f33f7adaa01ad15909c0f34a81e5a0b0a (patch) | |
| tree | e62655bbe73d7fda9813d8e71083da4dd251ffd1 /drivers/net/hyperv/netvsc_drv.c | |
| parent | ae28ea5cbdee9956464223b304d6c767238b2506 (diff) | |
| download | lwn-4cab498f33f7adaa01ad15909c0f34a81e5a0b0a.tar.gz lwn-4cab498f33f7adaa01ad15909c0f34a81e5a0b0a.zip | |
hv_netvsc: Allocate rx indirection table size dynamically
Allocate the size of rx indirection table dynamically in netvsc
from the value of size provided by OID_GEN_RECEIVE_SCALE_CAPABILITIES
query instead of using a constant value of ITAB_NUM.
Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Tested-on: Ubuntu22 (azure VM, SKU size: Standard_F72s_v2)
Testcases:
1. ethtool -x eth0 output
2. LISA testcase:PERF-NETWORK-TCP-THROUGHPUT-MULTICONNECTION-NTTTCP-Synthetic
3. LISA testcase:PERF-NETWORK-TCP-THROUGHPUT-MULTICONNECTION-NTTTCP-SRIOV
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hyperv/netvsc_drv.c')
| -rw-r--r-- | drivers/net/hyperv/netvsc_drv.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 0103ff914024..3ba3c8fb28a5 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -1747,7 +1747,9 @@ static u32 netvsc_get_rxfh_key_size(struct net_device *dev) static u32 netvsc_rss_indir_size(struct net_device *dev) { - return ITAB_NUM; + struct net_device_context *ndc = netdev_priv(dev); + + return ndc->rx_table_sz; } static int netvsc_get_rxfh(struct net_device *dev, u32 *indir, u8 *key, @@ -1766,7 +1768,7 @@ static int netvsc_get_rxfh(struct net_device *dev, u32 *indir, u8 *key, rndis_dev = ndev->extension; if (indir) { - for (i = 0; i < ITAB_NUM; i++) + for (i = 0; i < ndc->rx_table_sz; i++) indir[i] = ndc->rx_table[i]; } @@ -1792,11 +1794,11 @@ static int netvsc_set_rxfh(struct net_device *dev, const u32 *indir, rndis_dev = ndev->extension; if (indir) { - for (i = 0; i < ITAB_NUM; i++) + for (i = 0; i < ndc->rx_table_sz; i++) if (indir[i] >= ndev->num_chn) return -EINVAL; - for (i = 0; i < ITAB_NUM; i++) + for (i = 0; i < ndc->rx_table_sz; i++) ndc->rx_table[i] = indir[i]; } |