bnxt_en: Add RX page mode support. - net-next.git

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author	Michael Chan <michael.chan@broadcom.com>	2017-02-06 16:55:36 -0500
committer	David S. Miller <davem@davemloft.net>	2017-02-07 13:30:58 -0500
commit	c61fb99cae51958a9096d8540c8c05e74cfa7e59 (patch)
tree	cc6709a1220c71163a11029b7c0b61d0217e39a2 /net/nfc
parent	b3dba77cf0acb6e44b368979026df975658332bc (diff)

bnxt_en: Add RX page mode support.

This mode is to support XDP. In this mode, each rx ring is configured with page sized buffers for linear placement of each packet. MTU will be restricted to what the page sized buffers can support. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>

Diffstat (limited to 'net/nfc')

0 files changed, 0 insertions, 0 deletions

Commit: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") fixed an issue in the memory map handling of the stub FDT code, but inadvertently created an issue with such firmware, by moving some of the FDT manipulation to after the invocation of ExitBootServices(). Given that the stub's libfdt implementation uses the ordinary, accelerated string functions, which rely on hardware handling of unaligned accesses, manipulating the FDT with the MMU off may result in alignment faults. So fix the situation by moving the update_fdt_memmap() call into the callback function invoked by efi_exit_boot_services() right before it calls the ExitBootServices() UEFI service (which is arguably a better place for it anyway) Note that disabling the MMU in ExitBootServices() is not compliant with the UEFI spec, and carries great risk due to the fact that switching from cached to uncached memory accesses halfway through compiler generated code (i.e., involving a stack) can never be done in a way that is architecturally safe. Fixes: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Riku Voipio <riku.voipio@linaro.org> Cc: <stable@vger.kernel.org> Cc: mark.rutland@arm.com Cc: linux-efi@vger.kernel.org Cc: matt@codeblueprint.co.uk Cc: leif.lindholm@linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1485971102-23330-2-git-send-email-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>

Diffstat (limited to 'tools/perf/jvmti')


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