Searched hist:ca9ec0888d631c446040a7fab9985afdeb4f73f3 (Results 1 – 3 of 3) sorted by relevance
| /openbmc/linux/drivers/net/ethernet/intel/i40e/ |
| H A D | i40e_txrx.h | diff ca9ec0888d631c446040a7fab9985afdeb4f73f3 Wed Apr 05 06:51:02 CDT 2017 Alexander Duyck <alexander.h.duyck@intel.com> i40e/i40evf: Add support for padding start of frames
This patch adds padding to the start of frames to make room for headroom
for us to eventually start using build_skb. Right now we guarantee at
least NET_SKB_PAD + NET_IP_ALIGN, however we allocate more space if more is
available. For example on x86 the headroom should be 192 bytes.
On systems that have too large of a cache line size to support storing 1.5K
padding and shared info we default to using 3K buffers and reserve
everything that isn't used for skb_shared_info or the data buffer for
headroom.
Change-ID: I33c641c9a1ea10cf7cc484c2d20985368d2d709a
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
| H A D | i40e_txrx.c | diff ca9ec0888d631c446040a7fab9985afdeb4f73f3 Wed Apr 05 06:51:02 CDT 2017 Alexander Duyck <alexander.h.duyck@intel.com> i40e/i40evf: Add support for padding start of frames
This patch adds padding to the start of frames to make room for headroom
for us to eventually start using build_skb. Right now we guarantee at
least NET_SKB_PAD + NET_IP_ALIGN, however we allocate more space if more is
available. For example on x86 the headroom should be 192 bytes.
On systems that have too large of a cache line size to support storing 1.5K
padding and shared info we default to using 3K buffers and reserve
everything that isn't used for skb_shared_info or the data buffer for
headroom.
Change-ID: I33c641c9a1ea10cf7cc484c2d20985368d2d709a
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
| H A D | i40e_main.c | diff ca9ec0888d631c446040a7fab9985afdeb4f73f3 Wed Apr 05 06:51:02 CDT 2017 Alexander Duyck <alexander.h.duyck@intel.com> i40e/i40evf: Add support for padding start of frames
This patch adds padding to the start of frames to make room for headroom
for us to eventually start using build_skb. Right now we guarantee at
least NET_SKB_PAD + NET_IP_ALIGN, however we allocate more space if more is
available. For example on x86 the headroom should be 192 bytes.
On systems that have too large of a cache line size to support storing 1.5K
padding and shared info we default to using 3K buffers and reserve
everything that isn't used for skb_shared_info or the data buffer for
headroom.
Change-ID: I33c641c9a1ea10cf7cc484c2d20985368d2d709a
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|