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| author |   Mitch Williams <mitch.a.williams@intel.com> | 2016-01-13 16:51:49 -0800 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2016-02-17 15:22:22 -0800 |
| commit | f16704e5e8aed1dfed4084c56dde17006c2e81f1 (patch) | |
| tree | 2893392f5f89b95ea0af22dbbabcca4a0f4333b2 /drivers/net/ethernet/intel/i40e/i40e_debugfs.c | |
| parent | i40e/i40evf: use __GFP_NOWARN (diff) | |
| download | linux-dev-f16704e5e8aed1dfed4084c56dde17006c2e81f1.tar.xz linux-dev-f16704e5e8aed1dfed4084c56dde17006c2e81f1.zip | |
i40e/i40evf: use pages correctly in Rx
Refactor the packet split Rx code to properly use half-pages for
receives. The previous code was doing way more mapping and unmapping
than it needed to, and wasn't properly using half-pages.
Increment the page use count each time we give a half-page to an skb,
knowing that the stack will probably process and release the page before
we need it again. Only free and reallocate pages if the count shows that
both half-pages are in use. Add counters to track reallocations and page
reuse.
Change-ID: I534b299196036b64be82b4861a0a4036310a8f22
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_debugfs.c')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c index fcae3c8923ce..bdac69185fef 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c +++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c @@ -536,6 +536,11 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid) rx_ring->rx_stats.alloc_page_failed, rx_ring->rx_stats.alloc_buff_failed); dev_info(&pf->pdev->dev, + " rx_rings[%i]: rx_stats: realloc_count = %lld, page_reuse_count = %lld\n", + i, + rx_ring->rx_stats.realloc_count, + rx_ring->rx_stats.page_reuse_count); + dev_info(&pf->pdev->dev, " rx_rings[%i]: size = %i, dma = 0x%08lx\n", i, rx_ring->size, (unsigned long int)rx_ring->dma); |