- 22 Mar, 2009 32 commits
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Stephen Hemminger authored
Signed-off-by:
Stephen Hemminger <shemminger@vyatta.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Stephen Hemminger authored
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Stephen Hemminger authored
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Stephen Hemminger authored
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Stephen Hemminger authored
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Stephen Hemminger authored
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Stephen Hemminger authored
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Stephen Hemminger authored
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Stephen Hemminger authored
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Stephen Hemminger authored
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Stephen Hemminger authored
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Stephen Hemminger authored
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Stephen Hemminger authored
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Stephen Hemminger authored
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Stephen Hemminger authored
Need to reference net_device_ops not old pointer. Signed-off-by:
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Stephen Hemminger authored
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Stephen Hemminger authored
Also, removed unnecessary memset() since alloc_netdev returns zeroed memory. Signed-off-by:
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Stephen Hemminger authored
Convert this driver to new net_device_ops infrastructure. Also use default net_device get-stats infrastructure Signed-off-by:
Steve Wise <swise@opengridcomputing.com> Signed-off-by:
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Stephen Hemminger authored
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Stephen Hemminger authored
This converts the mpc device to using new netdevice_ops. Compile tested only, needs more than usual review since device was swaping pointers around etc. Signed-off-by:
Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by:
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Ben Hutchings authored
Calculate a score for each 1000 IRQs: - TX completions are worth 1 point - RX completions are worth 4 if merged using LRO or 2 otherwise Reduce moderation if the score is less than 10000, down to a minimum of 5 us. Increase moderation if the score is more than 20000, up to the specified maximum. Signed-off-by:
Ben Hutchings <bhutchings@solarflare.com> Signed-off-by:
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Ben Hutchings authored
The bug this function works around only applies to the first set of page-mapped registers; other pages can be written without locking. Signed-off-by:
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Ben Hutchings authored
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Ben Hutchings authored
In rare cases, reading the legacy interrupt status register can acknowledge an event queue whose attention flag has not yet been set in the register. Until we service this event queue it will not generate any more interrupts. Therefore, as a secondary check, poll the next slot in each active event queue whose flag is not set. Signed-off-by:
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Ben Hutchings authored
The packet parser used in the TX data path for locating checksum fields can lose synchronisation with the TX queue manager when handling packets that look like IPv4 but are too short (17-32 bytes). Work around this by padding to 33 bytes. Signed-off-by:
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Lennert Buytenhek authored
The initial version of the DSA driver only supported a single switch chip per network interface, while DSA-capable switch chips can be interconnected to form a tree of switch chips. This patch adds support for multiple switch chips on a network interface. An example topology for a 16-port device with an embedded CPU is as follows: +-----+ +--------+ +--------+ | |eth0 10| switch |9 10| switch | | CPU +----------+ +-------+ | | | | chip 0 | | chip 1 | +-----+ +---++---+ +---++---+ || || || || ||1000baseT ||1000baseT ||ports 1-8 ||ports 9-16 This requires a couple of interdependent changes in the DSA layer: - The dsa platform driver data needs to be extended: there is still only one netdevice per DSA driver instance (eth0 in the example above), but each of the switch chips in the tree needs its own mii_bus device pointer, MII management bus address, and port name array. (include/net/dsa.h) The existing in-tree dsa users need some small changes to deal with this. (arch/arm) - The DSA and Ethertype DSA tagging modules need to be extended to use the DSA device ID field on receive and demultiplex the packet accordingly, and fill in the DSA device ID field on transmit according to which switch chip the packet is heading to. (net/dsa/tag_{dsa,edsa}.c) - The concept of "CPU port", which is the switch chip port that the CPU is connected to (port 10 on switch chip 0 in the example), needs to be extended with the concept of "upstream port", which is the port on the switch chip that will bring us one hop closer to the CPU (port 10 for both switch chips in the example above). - The dsa platform data needs to specify which ports on which switch chips are links to other switch chips, so that we can enable DSA tagging mode on them. (For inter-switch links, we always use non-EtherType DSA tagging, since it has lower overhead. The CPU link uses dsa or edsa tagging depending on what the 'root' switch chip supports.) This is done by specifying "dsa" for the given port in the port array. - The dsa platform data needs to be extended with information on via which port to reach any given switch chip from any given switch chip. This info is specified via the per-switch chip data struct ->rtable[] array, which gives the nexthop ports for each of the other switches in the tree. For the example topology above, the dsa platform data would look something like this: static struct dsa_chip_data sw[2] = { { .mii_bus = &foo, .sw_addr = 1, .port_names[0] = "p1", .port_names[1] = "p2", .port_names[2] = "p3", .port_names[3] = "p4", .port_names[4] = "p5", .port_names[5] = "p6", .port_names[6] = "p7", .port_names[7] = "p8", .port_names[9] = "dsa", .port_names[10] = "cpu", .rtable = (s8 []){ -1, 9, }, }, { .mii_bus = &foo, .sw_addr = 2, .port_names[0] = "p9", .port_names[1] = "p10", .port_names[2] = "p11", .port_names[3] = "p12", .port_names[4] = "p13", .port_names[5] = "p14", .port_names[6] = "p15", .port_names[7] = "p16", .port_names[10] = "dsa", .rtable = (s8 []){ 10, -1, }, }, }, static struct dsa_platform_data pd = { .netdev = &foo, .nr_switches = 2, .sw = sw, }; Signed-off-by:Lennert Buytenhek <buytenh@marvell.com> Tested-by:
Gary Thomas <gary@mlbassoc.com> Signed-off-by:
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Lennert Buytenhek authored
Add support for the Marvell 88E6095/6095F switch chips. These chips are similar to the 88e6131, so we can add the support to mv88e6131.c easily. Thanks to Gary Thomas <gary@mlbassoc.com> and Jesper Dangaard Brouer <hawk@diku.dk> for testing various patches. Signed-off-by:
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Lennert Buytenhek authored
..so that we can parse the DSA topology from 'ip link' output: 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 4: lan1@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue 5: lan2@eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue 6: lan3@eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue 7: lan4@eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue Signed-off-by:
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Stephen Hemminger authored
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Stephen Hemminger authored
Change printk() argument to fix compiler warning. Signed-off-by:
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Stephen Hemminger authored
Fix compiler warning about non-const format string. Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by:
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Stephen Hemminger authored
Protocols should be able to use constant value for the descriptor. Minor whitespace cleanup as well Signed-off-by:
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- 21 Mar, 2009 8 commits
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Alexander Duyck authored
The igb driver was using map_single to map the skbs and then unmap_page to unmap them. This update changes that so instead uses skb_dma_map and skb_dma_unmap. In addition the next_to_watch member of the buffer_info struct was being set uneccesarily. I removed the spots where it was set without being needed. Signed-off-by:
Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
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Alexander Duyck authored
Currently if there are no multicast addresses programmed into the PF then the VFs cannot have their multicast filters reset. This change makes it so the code path that updates vf multicast is always called along with the pf updates. Signed-off-by:
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Alexander Duyck authored
igb was previously setting up all of the timer members itself. It is easier to just call setup_timer and reduce the calls to one line. Signed-off-by:
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Alexander Duyck authored
This patch removes IGB_DESC_UNUSED and replaces it with a function call instead in order to cleanup some of the ugliness introduced by the macro. Signed-off-by:
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Arthur Jones authored
When the 82575 is fed 802.1q packets, it chokes with an error of the form: igb 0000:08:00.1 partial checksum but proto=81! As the logic there was not smart enough to look into the vlan header to pick out the encapsulated protocol. There are times when we'd like to send these packets out without having to configure a vlan on the interface. Here we check for the vlan tag and allow the packet to go out with the correct hardware checksum. Thanks to Kand Ly <kand@riverbed.com> for discovering the issue and the coming up with a solution. This patch is based upon his work. Signed-off-by:
Arthur Jones <ajones@riverbed.com> Signed-off-by:
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Yang Hongyang authored
Signed-off-by:
Yang Hongyang <yanghy@cn.fujitsu.com> Signed-off-by:
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Mikhail Zolotaryov authored
Hi, IBM EMAC driver performs device reset (drivers/net/ibm_newemac/core.c: emac_probe() -> emac_init_phy() -> emac_reset()) before registering appropriate net_device (emac_probe() -> register_netdev()), so net_device name contains raw format string during EMAC reset ("eth%d"). If the case of reset timeout, emac_report_timeout_error() function is called to report an error. The problem is this function uses net_device name to report device related, which is not correct, as a result in the kernel log buffer we see: eth%d: reset timeout The solution is to print device_node full_name instead. After applying the patch proposed, error string is like the following: /plb/opb/ethernet@ef600e00: reset timeout Signed-off-by:Mikhail Zolotaryov <lebon@lebon.org.ua> Acked-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Eric Dumazet authored
There is no gain using prefetch() in dev_hard_start_xmit(), since we already had to read ops->ndo_select_queue pointer in dev_pick_tx(), and both pointers are probably located in the same cache line. This prefetch call slows down fast path because of a stall in address computation. Signed-off-by:
Eric Dumazet <dada1@cosmosbay.com> Signed-off-by:
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