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linux-hardened/drivers/net/ethernet
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Alexander Duyck 09816fbea9 ixgbe: Only use double buffering if page size is less than 8K 
This change makes it so that we do not use double buffering if the page
size is larger than 4K.  Instead we will simply walk through the page using
up to 3K per receive, and if we receive less than we only move the offset
by that amount.  We will free the page when there is no longer any space
left that we can use instead of checking the page count to see if we can
cycle back to the start.

The main motivation behind this is to avoid the unnecessary truesize cost
for using a half page when most packets are 2K or smaller. With this new
approach the largest possible truesize for a page fragment will be 3K when
PAGE_SIZE is larger than 4K.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2012-08-16 15:44:28 -07:00
..
3com drivers/net/ethernet: Fix (nearly-)kernel-doc comments for various functions 2012-07-10 23:13:46 -07:00
8390 net: add support for NS8390 based eth controllers on some ColdFire CPU boards 2012-07-12 07:54:45 -07:00
adaptec
adi
aeroflex ethernet: Remove casts to same type 2012-06-06 09:31:33 -07:00
alteon
amd lance: remove unnecessary setting of skb->dev 2012-07-10 23:24:56 -07:00
apple ethernet: Remove casts to same type 2012-06-06 09:31:33 -07:00
atheros atl1c: fix issue of io access mode for AR8152 v2.1 2012-07-20 11:21:18 -07:00
broadcom bnx2x: fix mem leak when command is unknown 2012-08-02 00:19:17 -07:00
brocade drivers/net/ethernet: Fix non-kernel-doc comments with kernel-doc start markers 2012-07-10 23:13:46 -07:00
cadence net/macb: manage carrier state with call to netif_carrier_{on|off}() 2012-07-09 00:03:06 -07:00
calxeda net: calxedaxgmac: enable rx cut-thru mode 2012-07-10 23:25:47 -07:00
chelsio netvm: propagate page->pfmemalloc from skb_alloc_page to skb 2012-07-31 18:42:46 -07:00
cirrus cirrus: cs89x0: Remove function prototypes and reorder declarations 2012-05-18 23:48:07 -04:00
cisco enic: remove unnecessary setting of skb->dev 2012-07-10 23:24:56 -07:00
davicom dm9000: some coldfire boards need this 2012-05-14 18:40:16 -04:00
dec ethernet: Remove casts to same type 2012-06-06 09:31:33 -07:00
dlink Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-05-07 23:35:40 -04:00
emulex emulex: benet: Add a missing CR in the end of message 2012-08-03 16:43:03 -07:00
faraday net: ftgmac100/ftmac100: dont pull too much data 2012-07-18 09:40:53 -07:00
freescale Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-07-10 23:56:33 -07:00
fujitsu drivers/net: delete all code/drivers depending on CONFIG_MCA 2012-05-17 16:37:41 -04:00
hp ethernet: Remove casts to same type 2012-06-06 09:31:33 -07:00
i825xx ethernet: Remove casts to same type 2012-06-06 09:31:33 -07:00
ibm drivers/net/ethernet: Fix non-kernel-doc comments with kernel-doc start markers 2012-07-10 23:13:46 -07:00
icplus
intel ixgbe: Only use double buffering if page size is less than 8K 2012-08-16 15:44:28 -07:00
marvell Merge branch 'v3.5-rc7-fixes' of git://github.com/lunn/linux into fixes 2012-07-25 21:37:09 +02:00
mellanox net/mlx4_core: Remove port type restrictions 2012-08-03 16:49:40 -07:00
micrel ethernet: Use eth_random_addr 2012-07-16 22:38:27 -07:00
microchip
myricom myri10ge: set maximal number of default RSS queues 2012-07-05 03:06:44 -07:00
natsemi drivers/net: delete all code/drivers depending on CONFIG_MCA 2012-05-17 16:37:41 -04:00
neterion net: fix race condition in several drivers when reading stats 2012-07-22 12:12:32 -07:00
nuvoton
nvidia forcedeth: advertise transmit time stamping 2012-07-22 12:33:32 -07:00
nxp lpc_eth: remove duplicated include 2012-07-16 22:16:40 -07:00
octeon netdev: octeon_mgmt: Convert to use device tree. 2012-07-23 13:54:53 +01:00
oki-semi pch_gbe: vlan skb len fix 2012-07-26 14:30:23 -07:00
packetengines
pasemi net/pasemi: fix compiler warning 2012-05-02 20:52:48 -04:00
qlogic qlge: Add offload features to vlan interfaces 2012-07-29 23:18:30 -07:00
racal
rdc r6040: use module_pci_driver macro 2012-07-09 14:42:30 -07:00
realtek r8169: revert "add byte queue limit support". 2012-07-23 18:27:00 -07:00
renesas net: sh_eth: add support for set_ringparam/get_ringparam 2012-06-27 01:24:16 -07:00
seeq seeq: use PTR_RET at init_module of driver 2012-07-29 23:18:30 -07:00
sfc sfc: Fix maximum number of TSO segments and minimum TX queue size 2012-08-02 00:19:17 -07:00
sgi ethernet: Remove casts to same type 2012-06-06 09:31:33 -07:00
silan
sis
smsc ethernet: Use eth_random_addr 2012-07-16 22:38:27 -07:00
stmicro net/stmmac: remove conditional compilation of clk code 2012-07-30 17:25:12 -07:00
sun niu: Change niu_rbr_fill() to use unlikely() to check niu_rbr_add_page() return value 2012-07-22 23:31:07 -07:00
tehuti drivers/net/ethernet: Fix (nearly-)kernel-doc comments for various functions 2012-07-10 23:13:46 -07:00
ti drivers: net: ethernet: davince_mdio: device tree implementation 2012-08-07 16:24:55 -07:00
tile tilegx net: use eth_hw_addr_random(), not eth_random_addr() 2012-07-18 15:07:45 -04:00
toshiba drivers/net/ethernet: Fix (nearly-)kernel-doc comments for various functions 2012-07-10 23:13:46 -07:00
tundra
via ethernet: Remove casts to same type 2012-06-06 09:31:33 -07:00
wiznet net: wiznet add missing HAS_IOMEM dependency 2012-07-25 15:24:13 -07:00
xilinx ethernet: Use eth_random_addr 2012-07-16 22:38:27 -07:00
xircom
xscale
dnet.c
dnet.h
ethoc.c ethernet: Use eth_random_addr 2012-07-16 22:38:27 -07:00
fealnx.c
jme.c jme: netpoll support 2012-07-18 09:40:54 -07:00
jme.h
Kconfig
korina.c
lantiq_etop.c ethernet: Use eth_random_addr 2012-07-16 22:38:27 -07:00
Makefile
mipsnet.c
netx-eth.c
s6gmac.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-05-22 19:22:50 -07:00