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From: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
To: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	linux-pci <linux-pci@vger.kernel.org>
Subject: PCIe EPF
Date: Wed, 18 Mar 2020 11:37:56 +0000	[thread overview]
Message-ID: <CA+V-a8vOwwCjRnFZ_Cxtvep1nLMXd5AjOyJyispg1A1k_ExbSQ@mail.gmail.com> (raw)

Hi Kishon,

I rebased my rcar-endpoint patches on endpoint branch, which has
support for streaming DMA API support, with this  read/write/copy
tests failed, to make sure nothing hasn't changed on my driver I
reverted the streaming DMA API patch
74b9b4da84c71418ceeaaeb78dc790376df92fea "misc: pci_endpoint_test: Use
streaming DMA APIs for buffer allocation" and tests began to pass
again.

If add a GFP_DMA flag for kzalloc (with streaming DMA), the test cases
for read/write/copy pass as expected.

Could you please through some light why this could be happening.

Cheers,
--Prabhakar Lad

             reply	other threads:[~2020-03-18 11:38 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-18 11:37 Lad, Prabhakar [this message]
2020-03-20  5:28 ` PCIe EPF Kishon Vijay Abraham I
2020-03-21 22:49   ` Lad, Prabhakar
2020-03-24  1:58     ` Kishon Vijay Abraham I
2020-03-24 14:41       ` Lad, Prabhakar
2020-03-28 18:44         ` Lad, Prabhakar
2020-03-29 14:04           ` Lad, Prabhakar
2020-03-30 11:59             ` Kishon Vijay Abraham I
2020-03-30 13:09               ` Lad, Prabhakar
2020-03-30 13:20                 ` Kishon Vijay Abraham I
2020-03-30 13:46                   ` Lad, Prabhakar
2020-03-31  7:10                     ` Yoshihiro Shimoda
2020-03-31 17:25                       ` Lad, Prabhakar
2020-04-01  1:25                         ` Yoshihiro Shimoda
2020-04-01  8:00                           ` Lad, Prabhakar
2020-04-01  8:50                             ` Yoshihiro Shimoda
2020-04-01  9:24                               ` Lad, Prabhakar
2020-04-02  1:22                                 ` Yoshihiro Shimoda
2020-04-02  4:58                                   ` Yoshihiro Shimoda
2020-04-02 17:44                                     ` Lad, Prabhakar

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