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2009-08-29tg3: Convert napi handlers to use tnapiMatt Carlson
This patch converts the napi interrupt handler functions to accept and use tg3_napi structures. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Convert ISR parameter to tnapiMatt Carlson
This patch migrates the ISR parameter from struct net_device to struct tg3_napi. Checkpatch complains about the existence of the preexisting IRQF_SAMPLE_RANDOM flag. I've opted to keep this patch conservative and let it continue to exist until the flag gets officially purged from the kernel. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Move napi to per-int structMatt Carlson
This patch creates a per-interrupt data structure, moves the napi member over, and creates a tg3 pointer back to the device structure. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Cleanup interrupt setup / teardownMatt Carlson
Later patches will be adding MSIX support, which will complicate interrupt initialization. This patch prepares for the integration by breaking out the interrupt setup and teardown code into separate functions and cleaning up the error return paths. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Use ext rx bdsMatt Carlson
The 5717 only uses extended buffer descriptors for the jumbo producer ring. Extended buffer descriptors are available on all devices that support a separate jumbo producer ring so make the change universal. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Create a new prodring_set structureMatt Carlson
This patch migrates most of the rx producer ring variables to a new tg3_rx_prodring_set structure and modifies the code accordingly. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Create rx producer ring setup routinesMatt Carlson
Later patches are going to complicate the ring initialization routines. This patch breaks out the setup and teardown of the rx producer rings into separate functions to make the code more readable. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Clarify rx buffer relationshipsMatt Carlson
This patch attempts to document the various rx buffer sizes used by the driver and how they relate to each other. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Move the JUMBO_CAPABLE and SUPPORT_MSI flagsMatt Carlson
This patch moves where the jumbo capable and msi support flags are located. This is prep work for the addition of msix support flags. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Break out mini producer ring handlingMatt Carlson
This patch separates the code that sets up the mini producer ring from the code that sets up the jumbo producer rings. The 5717 asic rev devices do not have a mini ring, but do have a jumbo frame implementation similar to the 5704 and previous devices. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Reformat NVRAM case statementsMatt Carlson
This patch fixes up the NVRAM detection switch statements to conform to the kernel coding style. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Add new 5785 10/100 only device IDMatt Carlson
This patch adds a new device ID for those 5785 devices that will only use 10/100 phys. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tg3: Delay mdio bus init until fw finishesMatt Carlson
The device firmware uses the MDIO bus during early setup. If the driver modifies the MDIO bus configuration while it is in use by the firmware, any number of bad things can happen. This patch delays MDIO setup until after the firmware posts its magic signature, signifying initialization is complete. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tipc: fix test of bearer_priority range in tipc_register_media()roel kluin
For the bearer_priority to be less than TIPC_MIN_LINK_PRI and greater than TIPC_MAX_LINK_PRI is logically impossible. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29can: switch to seq_fileAlexey Dobriyan
create_proc_read_entry() is going to be removed soon. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29net: sh_eth: add value of ether_link pin in platform_dataYoshihiro Shimoda
The method of ETHER_LINK pin is board dependence. This patch adding paramters are: - no_ether_link : If set to 1, do not use ETHER_LINK - ether_link_active_low : If set to 1, ETHER_LINK is active low. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29TI DaVinci EMAC: delay DaVinci EMAC initializationRajashekhara, Sudhakar
On TI's DA850/OMAP-L138 EVM, MAC address is stored in SPI flash which is accessed using MTD interface. This patch delays the initialization of DaVinci EMAC driver by changing module_init to late_initcall. This helps SPI and MTD drivers to get initialized before EMAC thereby enabling EMAC driver to read the MAC address while booting and use it. Tested with NFS on DM644x, DM6467, DA830/OMAP-L137 and DA850/OMAP-L138 EVMs. Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Reviewed-by: Chaithrika U S <chaithrika@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29WAN/LMC: Fix type_trans().Krzysztof Halasa
Fix lmc_proto_type() invocation. Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29lib/vsprintf.c: Add "%pI6c" - print pointer as compressed ipv6 addressJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Tested-by: Jens Rosenboom <jens@mcbone.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tcp: Remove redundant copy of MD5 authentication keyJohn Dykstra
Remove the copy of the MD5 authentication key from tcp_check_req(). This key has already been copied by tcp_v4_syn_recv_sock() or tcp_v6_syn_recv_sock(). Signed-off-by: John Dykstra <john.dykstra1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29Speed-up pfifo_fast lookup using a private bitmapKrishna Kumar
Maintain a per-qdisc bitmap for pfifo_fast giving availability of skbs for each band. This allows faster lookup for a skb when there are no high priority skbs. Also, it helps in (rare) cases when there are no skbs on the list, where an immediate lookup is faster than iterating through the three bands. Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29ipv6: Update Neighbor Cache when IPv6 RA is received on a routerDavid Ward
When processing a received IPv6 Router Advertisement, the kernel creates or updates an IPv6 Neighbor Cache entry for the sender -- but presently this does not occur if IPv6 forwarding is enabled (net.ipv6.conf.*.forwarding = 1), or if IPv6 Router Advertisements are not accepted (net.ipv6.conf.*.accept_ra = 0), because in these cases processing of the Router Advertisement has already halted. This patch allows the Neighbor Cache to be updated in these cases, while still avoiding any modification to routes or link parameters. This continues to satisfy RFC 4861, since any entry created in the Neighbor Cache as the result of a received Router Advertisement is still placed in the STALE state. Signed-off-by: David Ward <david.ward@ll.mit.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29bnx2: Update firmware to 5.0.0.j3.Michael Chan
- Better small packet receive performance. - Better handling of Flow control on 5709. - Fixed iSCSI TMP ABORT TASK problem. - Added iSCSI TCP timestamp option. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-29tcp: fix premature termination of FIN_WAIT2 time-wait socketsOctavian Purdila
There is a race condition in the time-wait sockets code that can lead to premature termination of FIN_WAIT2 and, subsequently, to RST generation when the FIN,ACK from the peer finally arrives: Time TCP header 0.000000 30755 > http [SYN] Seq=0 Win=2920 Len=0 MSS=1460 TSV=282912 TSER=0 0.000008 http > 30755 aSYN, ACK] Seq=0 Ack=1 Win=2896 Len=0 MSS=1460 TSV=... 0.136899 HEAD /1b.html?n1Lg=v1 HTTP/1.0 [Packet size limited during capture] 0.136934 HTTP/1.0 200 OK [Packet size limited during capture] 0.136945 http > 30755 [FIN, ACK] Seq=187 Ack=207 Win=2690 Len=0 TSV=270521... 0.136974 30755 > http [ACK] Seq=207 Ack=187 Win=2734 Len=0 TSV=283049 TSER=... 0.177983 30755 > http [ACK] Seq=207 Ack=188 Win=2733 Len=0 TSV=283089 TSER=... 0.238618 30755 > http [FIN, ACK] Seq=207 Ack=188 Win=2733 Len=0 TSV=283151... 0.238625 http > 30755 [RST] Seq=188 Win=0 Len=0 Say twdr->slot = 1 and we are running inet_twdr_hangman and in this instance inet_twdr_do_twkill_work returns 1. At that point we will mark slot 1 and schedule inet_twdr_twkill_work. We will also make twdr->slot = 2. Next, a connection is closed and tcp_time_wait(TCP_FIN_WAIT2, timeo) is called which will create a new FIN_WAIT2 time-wait socket and will place it in the last to be reached slot, i.e. twdr->slot = 1. At this point say inet_twdr_twkill_work will run which will start destroying the time-wait sockets in slot 1, including the just added TCP_FIN_WAIT2 one. To avoid this issue we increment the slot only if all entries in the slot have been purged. This change may delay the slots cleanup by a time-wait death row period but only if the worker thread didn't had the time to run/purge the current slot in the next period (6 seconds with default sysctl settings). However, on such a busy system even without this change we would probably see delays... Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28fib_trie: resize reworkJens Låås
Here is rework and cleanup of the resize function. Some bugs we had. We were using ->parent when we should use node_parent(). Also we used ->parent which is not assigned by inflate in inflate loop. Also a fix to set thresholds to power 2 to fit halve and double strategy. max_resize is renamed to max_work which better indicates it's function. Reaching max_work is not an error, so warning is removed. max_work only limits amount of work done per resize. (limits CPU-usage, outstanding memory etc). The clean-up makes it relatively easy to add fixed sized root-nodes if we would like to decrease the memory pressure on routers with large routing tables and dynamic routing. If we'll need that... Its been tested with 280k routes. Work done together with Robert Olsson. Signed-off-by: Jens Låås <jens.laas@its.uu.se> Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28sit: allow ip fragmentation when using nopmtudisc to fix package lossSascha Hlusiak
if tunnel parameters have frag_off set to IP_DF, pmtudisc on the ipv4 link will be performed by deriving the mtu from the ipv4 link and setting the DF-Flag of the encapsulating IPv4 Header. If fragmentation is needed on the way, the IPv4 pmtu gets adjusted, the ipv6 package will be resent eventually, using the new and lower mtu and everyone is happy. If the frag_off parameter is unset, the mtu for the tunnel will be derived from the tunnel device or the ipv6 pmtu, which might be higher than the ipv4 pmtu. In that case we must allow the fragmentation of the IPv4 packet because the IPv6 mtu wouldn't 'learn' from the adjusted IPv4 pmtu, resulting in frequent icmp_frag_needed and package loss on the IPv6 layer. This patch allows fragmentation when tunnel was created with parameter nopmtudisc, like in ipip/gre tunnels. Signed-off-by: Sascha Hlusiak <contact@saschahlusiak.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28net: ip_rt_send_redirect() optimizationEric Dumazet
While doing some forwarding benchmarks, I noticed ip_rt_send_redirect() is rather expensive, even if send_redirects is false for the device. Fix is to avoid two atomic ops, we dont really need to take a reference on in_dev Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28tcp: keepalive cleanupsEric Dumazet
Introduce keepalive_probes(tp) helper, and use it, like keepalive_time_when(tp) and keepalive_intvl_when(tp) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28cnic: Put uio init in separate function.Michael Chan
This will allow the 10G iSCSI code to reuse the function. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28cnic: Put rx/tx ring allocation in separate function.Michael Chan
This will allow the 10G iSCSI code to reuse the function. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28ipv4: af_inet.c cleanupsEric Dumazet
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28pktgen: use proc_create_data()Alexey Dobriyan
It looks like after rename device proc entry is unusable, because of no ->read_proc or ->proc_fops. And create_proc_entry() is deprecated. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28pktgen: increase versionStephen Hemminger
Increase module version, and cleanup module info. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28pktgen: cleanup checkpatch warningsStephen Hemminger
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28pktgen: use common idle routineStephen Hemminger
Simpler to have one place that spins and accounts for delays, this will also make the last packet be detected faster for more repeatable timing. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28pktgen: spin using hrtimerStephen Hemminger
This changes how the pktgen thread spins/waits between packets if delay is configured. It uses a high res timer to wait for time to arrive. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28pktgen: convert to use ktime_tStephen Hemminger
The kernel ktime_t is a nice generic infrastructure for mananging high resolution times, as is done in pktgen. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28pktgen: avoid calling gettimeofdayStephen Hemminger
If not using delay then no need to update next_tx after each packet sent. This allows pktgen to send faster especially on systems with slower clock sources. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28pktgen: reorganize transmit loopStephen Hemminger
Handle standard (and non-standard) return values in a switch. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28pktgen: use netdev_alloc_skbStephen Hemminger
netdev_alloc_skb is NUMA node aware. Also, don't exhaust atomic emergency pool. Don't want pktgen to cause OOM behaviour. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28pktgen: cleanup clone count testStephen Hemminger
The if statement to test for "should a new packet be used" can be simplified. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28pktgen: xmit logic reorganizationStephen Hemminger
Do some reorganization of transmit logic path: * move transmit queue full idle to separate routine * add a cpu_relax() * eliminate some of the uneeded goto's * if queue is still stopped, go back to main thread loop. * don't give up transmitting if quantum is exhausted (be greedy) Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28pktgen: stop_device cleanupStephen Hemminger
All the callers were freeing skb after stopping device. Remove unneeded forward decl. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28pktgen: mark read-only/mostly variablesStephen Hemminger
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28pktgen: change inliningStephen Hemminger
Don't force inlining where not needed. Gcc does better job of deciding to inline local functions. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28pktgen: minor cleanupStephen Hemminger
A couple of minor functions can be written more compactly. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28qlge: Move TX completions from workqueue to NAPI.Ron Mercer
TX completions were running in a workqueue queued by the ISR. This patch moves the processing of TX completions to an existing RSS NAPI context. Now each irq vector runs NAPI for one RSS ring and one or more TX completion rings. Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28qlge: Allow running MSIx with fewer vectors.Ron Mercer
Currently we downshift to MSI/Legacy if we don't get enough vectors for cpu_count RSS rings plus cpu_count TX completion rings. This patch allows running MSIX with the vector count that the platform provides. Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28qlge: Get rid of 'default' rx_ring type.Ron Mercer
Currently we have three types of RX rings. 1) Default ring - services rx_ring for broadcast/multicast, handles firmware events, and errors. 2) TX completion ring - handles only outbound completions. 3) RSS ring - handles only inbound completions. This patch gets rid of the default ring type and moves it's functionality into the first RSS ring. This makes better use of MSIX vectors since they are a limited resource on some platforms. Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-28Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6