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From: David Miller <davem@davemloft.net>
To: edumazet@google.com
Cc: netdev@vger.kernel.org, eliezer.tamir@linux.intel.com,
	eli@mellanox.com, eugenia@mellanox.com, ariel.elior@qlogic.com,
	willemb@google.com, rida@google.com, eric.dumazet@gmail.com
Subject: Re: [PATCH v2 net-next 00/14] net: extend busy polling support
Date: Wed, 18 Nov 2015 16:18:26 -0500 (EST)	[thread overview]
Message-ID: <20151118.161826.1686345343654337694.davem@davemloft.net> (raw)
In-Reply-To: <1447857063-618-1-git-send-email-edumazet@google.com>

From: Eric Dumazet <edumazet@google.com>
Date: Wed, 18 Nov 2015 06:30:49 -0800

> This patch series extends busy polling range to tunnels devices,
> and adds busy polling generic support to all NAPI drivers.
> 
> No need to provide ndo_busy_poll() method and extra synchronization
> between ndo_busy_poll() and normal napi->poll() method.
> This was proven very difficult and bug prone.
> 
> mlx5 driver is changed to support busy polling using this new method,
> and a second mlx5 patch adds napi_complete_done() support and proper
> SNMP accounting.
> 
> bnx2x and mlx4 drivers are converted to new infrastructure,
> reducing kernel bloat and improving performance.
> 
> Latest patch, adding generic support, adds a new requirement :
> 
>  -free_netdev() and netif_napi_del() must be called from process context.
> 
> Since this might not be the case in some drivers, we might have to
> either : fix the non conformant drivers (by disabling busy polling on them)
> or revert this last patch.

I like this series a lot, and hope we can fix any fallout quickly and
painlessly.

Applied to net-next.

  parent reply	other threads:[~2015-11-18 21:18 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-18 14:30 [PATCH v2 net-next 00/14] net: extend busy polling support Eric Dumazet
2015-11-18 14:30 ` [PATCH v2 net-next 01/14] net: better skb->sender_cpu and skb->napi_id cohabitation Eric Dumazet
2015-11-18 14:30 ` [PATCH v2 net-next 02/14] mlx4: mlx4_en_low_latency_recv() called with BH disabled Eric Dumazet
2015-11-18 14:30 ` [PATCH v2 net-next 03/14] net: un-inline sk_busy_loop() Eric Dumazet
2015-11-18 14:30 ` [PATCH v2 net-next 04/14] net: allow BH servicing in sk_busy_loop() Eric Dumazet
2015-11-18 14:30 ` [PATCH v2 net-next 05/14] net: network drivers no longer need to implement ndo_busy_poll() Eric Dumazet
2015-11-18 14:30 ` [PATCH v2 net-next 06/14] mlx5: add busy polling support Eric Dumazet
2015-11-18 14:30 ` [PATCH v2 net-next 07/14] mlx5: support napi_complete_done() Eric Dumazet
2015-11-18 14:30 ` [PATCH v2 net-next 08/14] bnx2x: remove bnx2x_low_latency_recv() support Eric Dumazet
2015-11-18 14:30 ` [PATCH v2 net-next 09/14] mlx4: remove mlx4_en_low_latency_recv() Eric Dumazet
2015-11-18 14:30 ` [PATCH v2 net-next 10/14] net: move skb_mark_napi_id() into core networking stack Eric Dumazet
2015-11-18 14:31 ` [PATCH v2 net-next 11/14] net: add netif_tx_napi_add() Eric Dumazet
2015-11-18 14:31 ` [PATCH v2 net-next 12/14] net: move napi_hash[] into read mostly section Eric Dumazet
2015-11-18 14:31 ` [PATCH v2 net-next 13/14] net: napi_hash_del() returns a boolean status Eric Dumazet
2015-11-18 14:31 ` [PATCH v2 net-next 14/14] net: provide generic busy polling to all NAPI drivers Eric Dumazet
2015-11-18 21:18 ` David Miller [this message]
2015-11-19  6:09   ` [PATCH v2 net-next 00/14] net: extend busy polling support Or Gerlitz
2015-11-19 16:53   ` Eric Dumazet
2015-11-19 17:05     ` David Miller

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