From: Jakub Kicinski <kuba@kernel.org>
To: "Li,Rongqing" <lirongqing@baidu.com>
Cc: Tony Nguyen <anthony.l.nguyen@intel.com>,
"davem@davemloft.net" <davem@davemloft.net>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"nhorman@redhat.com" <nhorman@redhat.com>,
"sassmann@redhat.com" <sassmann@redhat.com>,
"jeffrey.t.kirsher@intel.com" <jeffrey.t.kirsher@intel.com>,
Andrew Bowers <andrewx.bowers@intel.com>
Subject: Re: [net-next 2/6] i40e: prefetch struct page of Rx buffer conditionally
Date: Wed, 29 Jul 2020 14:20:03 -0700 [thread overview]
Message-ID: <20200729142003.7fe30d67@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> (raw)
In-Reply-To: <8e1471fdcaed4f46825cd8ff112a8c36@baidu.com>
On Wed, 29 Jul 2020 06:20:47 +0000 Li,Rongqing wrote:
> > Looks like something that belongs in a common header not (potentially
> > multiple) C sources.
>
> Not clear, how should I change?
Can you add something like:
static inline void prefetch_page_address(struct page *page)
{
#if defined(WANT_PAGE_VIRTUAL) || defined(HASHED_PAGE_VIRTUAL)
prefetch(page);
#endif
}
to mm.h or prefetch.h or i40e.h or some other header? That's preferred
over adding #ifs directly in the source code.
next prev parent reply other threads:[~2020-07-29 21:20 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-28 19:08 [net-next 0/6][pull request] 40GbE Intel Wired LAN Driver Updates 2020-07-28 Tony Nguyen
2020-07-28 19:08 ` [net-next 1/6] i40e: not compute affinity_mask for IRQ Tony Nguyen
2020-07-28 19:08 ` [net-next 2/6] i40e: prefetch struct page of Rx buffer conditionally Tony Nguyen
2020-07-28 20:14 ` Jakub Kicinski
2020-07-29 6:20 ` 答复: " Li,Rongqing
2020-07-29 21:20 ` Jakub Kicinski [this message]
2020-07-30 1:15 ` Li,Rongqing
2020-07-28 19:08 ` [net-next 3/6] i40e, xsk: remove HW descriptor prefetch in AF_XDP path Tony Nguyen
2020-07-28 19:08 ` [net-next 4/6] i40e: use 16B HW descriptors instead of 32B Tony Nguyen
2020-07-28 19:08 ` [net-next 5/6] i40e, xsk: increase budget for AF_XDP path Tony Nguyen
2020-07-28 20:15 ` Jakub Kicinski
2020-07-29 10:43 ` Björn Töpel
2020-07-29 21:22 ` Jakub Kicinski
2020-07-28 19:08 ` [net-next 6/6] i40e, xsk: move buffer allocation out of the Rx processing loop Tony Nguyen
2020-07-28 20:16 ` [net-next 0/6][pull request] 40GbE Intel Wired LAN Driver Updates 2020-07-28 Jakub Kicinski
2020-08-10 11:47 ` Björn Töpel
2020-08-10 11:51 ` Björn Töpel
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