git/linux-cryptodev-2.6
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git synced 2026-04-18 03:23:53 -04:00
Code Issues Packages Projects Releases Wiki Activity

i40e: add support for XDP_TX action

Browse Source 
This patch adds proper XDP_TX action support. For each Tx ring, an
additional XDP Tx ring is allocated and setup. This version does the
DMA mapping in the fast-path, which will penalize performance for
IOMMU enabled systems. Further, debugfs support is not wired up for
the XDP Tx rings.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Björn Töpel
2017-05-24 07:55:35 +02:00
committed by Jeff Kirsher
parent 0c8493d90b
commit 74608d17fe
5 changed files with 384 additions and 87 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/net/ethernet/intel/i40e/i40e_txrx.h
View File

@@ -396,6 +396,7 @@ struct i40e_ring {
u16 flags;
#define I40E_TXR_FLAGS_WB_ON_ITR BIT(0)
#define I40E_RXR_FLAGS_BUILD_SKB_ENABLED BIT(1)
#define I40E_TXR_FLAGS_XDP BIT(2)
/* stats structs */
struct i40e_queue_stats stats;
@@ -438,6 +439,16 @@ static inline void clear_ring_build_skb_enabled(struct i40e_ring *ring)
ring->flags &= ~I40E_RXR_FLAGS_BUILD_SKB_ENABLED;
}
static inline bool ring_is_xdp(struct i40e_ring *ring)
{
return !!(ring->flags & I40E_TXR_FLAGS_XDP);
}
static inline void set_ring_xdp(struct i40e_ring *ring)
{
ring->flags |= I40E_TXR_FLAGS_XDP;
}
enum i40e_latency_range {
I40E_LOWEST_LATENCY = 0,
I40E_LOW_LATENCY = 1,