3 Commits

Author	SHA1	Message	Date
Talat Batheesh	5165674ff5	net/dim: Fix fixpoint divide exception in net_dim_stats_compare ... Helmut reported a bug about devision by zero while running traffic and doing physical cable pull test. When the cable unplugged the ppms become zero, so when dividing the current ppms by the previous ppms in the next dim iteration there is devision by zero. This patch prevent this division for both ppms and epms. Fixes: c3164d2fc4 ("net/mlx5e: Added BW check for DIM decision mechanism") Fixes: 4c4dbb4a73 ("net/mlx5e: Move dynamic interrupt coalescing code to include/linux") Reported-by: Helmut Grauer <helmut.grauer@de.ibm.com> Signed-off-by: Talat Batheesh <talatb@mellanox.com> Signed-off-by: Tal Gilboa <talgi@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>	2018-01-19 14:53:32 -05:00
Andy Gospodarek	8115b750db	net/dim: use struct net_dim_sample as arg to net_dim ... Simplify the arguments net_dim() by formatting them into a struct net_dim_sample before calling the function. Signed-off-by: Andy Gospodarek <gospo@broadcom.com> Suggested-by: Tal Gilboa <talgi@mellanox.com> Acked-by: Tal Gilboa <talgi@mellanox.com> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>	2018-01-10 15:27:45 -05:00
Andy Gospodarek	4c4dbb4a73	net/mlx5e: Move dynamic interrupt coalescing code to include/linux ... This move allows drivers to add private structure elements to track the number of packets, bytes, and interrupts events per ring. A driver also defines a workqueue handler to act on this collected data once per poll and modify the coalescing parameters per ring. Signed-off-by: Andy Gospodarek <gospo@broadcom.com> Acked-by: Tal Gilboa <talgi@mellanox.com> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>	2018-01-10 15:27:44 -05:00