u-boot/net
Simon Glass a1ca92eaaf dm: eth: Avoid blocking on packet reception
Some devices can take a long time to work out whether they have a new packet
or now. For example the ASIX USB Ethernet dongle can take 5 seconds to do
this, since it waits until it gets a new packet on the wire before allowing
the USB bulk read packet to be submitted.

At present with driver mode the Ethernet receive code reads 32 packets. This
can take a very long time if we must wait for all 32 packets. The old code
(before driver model) worked by reading a single set of packets from the USB
device, then processing all the packets with in. It would be nice to use
the same behaviour with driver model.

Add a flag to the receive method which indicates that the driver should try
to find a packet if available, by consulting the hardware. When the flag is
not set, it should just return any packet data it has already received. If
there is none, it should return -EAGAIN so that the loop will terminate.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-07-21 17:39:40 -06:00
..
arp.c net: cosmetic: Fix checkpatch.pl failures in net.c 2015-04-18 11:11:35 -06:00
arp.h net: cosmetic: Clean up ARP variables and functions 2015-04-18 11:11:33 -06:00
bootp.c net: Fix incorrect DHCP/BOOTP packets on 64-bit systems 2015-04-18 11:11:35 -06:00
bootp.h net: Convert protocol structures to use explicit sizes 2015-04-18 11:11:35 -06:00
cdp.c net: cosmetic: Fix checkpatch.pl failures in net.c 2015-04-18 11:11:35 -06:00
cdp.h net: cosmetic: Clean up CDP variables and functions 2015-04-18 11:11:34 -06:00
checksum.c net: Add a separate file for IP checksumming 2015-01-23 21:44:59 -07:00
dns.c net: cosmetic: Fix checkpatch.pl failures in net.c 2015-04-18 11:11:35 -06:00
dns.h net: cosmetic: Clean up DNS variables and functions 2015-04-18 11:11:34 -06:00
eth.c dm: eth: Avoid blocking on packet reception 2015-07-21 17:39:40 -06:00
Kconfig Allow CONFIG_REGEX to be disabled when CONFIG_NET 2015-07-08 18:26:39 -04:00
link_local.c net: cosmetic: Fix checkpatch.pl failures in net.c 2015-04-18 11:11:35 -06:00
link_local.h net: Add link-local addressing support 2012-05-23 17:53:08 -05:00
Makefile net: Add a separate file for IP checksumming 2015-01-23 21:44:59 -07:00
net.c net: Use env callbacks for net variables 2015-05-21 09:13:20 -04:00
net_rand.h net: use common rand()/srand() functions 2012-07-07 14:07:32 +02:00
nfs.c net: cosmetic: Fix checkpatch.pl failures in net.c 2015-04-18 11:11:35 -06:00
nfs.h net: cosmetic: Clean up NFS variables and functions 2015-04-18 11:11:33 -06:00
ping.c net: cosmetic: Fix checkpatch.pl failures in net.c 2015-04-18 11:11:35 -06:00
ping.h SPDX License cleanup for LiMon imported files 2014-10-10 09:44:43 -04:00
rarp.c net: cosmetic: Fix checkpatch.pl failures in net.c 2015-04-18 11:11:35 -06:00
rarp.h net: cosmetic: Clean up RARP variables and functions 2015-04-18 11:11:33 -06:00
sntp.c dm: net: rtc: Support using driver model for rtc in sntp 2015-05-05 20:58:40 -06:00
sntp.h net: cosmetic: Clean up SNTP variables and functions 2015-04-18 11:11:34 -06:00
tftp.c net: cosmetic: Fix checkpatch.pl failures in net.c 2015-04-18 11:11:35 -06:00
tftp.h net: cosmetic: Clean up TFTP variables and functions 2015-04-18 11:11:33 -06:00