- 31 Aug, 2009 3 commits
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Anton Vorontsov authored
In some CPUs (i.e. MPC8569) QE shuts down completely during sleep, drivers may want to know that to reinitialize registers and buffer descriptors. This patch implements qe_alive_during_sleep() helper function, so far it just checks if MPC8569-compatible power management controller is present, which is a sign that QE turns off during sleep. Signed-off-by:
Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Anton Vorontsov authored
In commit 3e73fc9a ("ucc_geth: Fix IO memory (un)mapping code") I fixed ug_regs IO memory leak by properly freeing the allocated memory. But ethtool_stats() callback doesn't check for ug_regs being NULL, and that causes following oops if 'ethtool -S' is executed on a closed eth device: Unable to handle kernel paging request for data at address 0x00000180 Faulting instruction address: 0xc0208228 Oops: Kernel access of bad area, sig: 11 [#1] ... NIP [c0208228] uec_get_ethtool_stats+0x38/0x140 LR [c02559a0] ethtool_get_stats+0xf8/0x23c Call Trace: [ef87bcd0] [c025597c] ethtool_get_stats+0xd4/0x23c (unreliable) [ef87bd00] [c025706c] dev_ethtool+0xfe8/0x11bc [ef87be00] [c0252b5c] dev_ioctl+0x454/0x6a8 ... ---[ end trace 77fff1162a9586b0 ]--- Segmentation fault This patch fixes the issue. Signed-off-by:
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- 29 Aug, 2009 37 commits
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Matt Carlson authored
This patch updates the tg3 version to 3.101. Signed-off-by:
Matt Carlson <mcarlson@broadcom.com> Signed-off-by:
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Matt Carlson authored
This patch moves the tx_prod, tx_cons, tx_pending, tx_ring, and tx_buffers transmit ring device members to a per-interrupt structure. It also adds a new transmit producer mailbox member (prodmbox) and converts the code to use it rather than a preprocessor constant. Signed-off-by:
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Matt Carlson authored
This patch moves the rx_rcb, rx_rcb_mapping, and rx_rcb_ptr return ring device members to a per-interrupt structure. It also adds a new return ring consumer mailbox register member (consmbox) and converts the code to use it rather than a preprocessor constant. Signed-off-by:
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Matt Carlson authored
This patch moves the last_tag, last_tag_irq, and hw_status device members to a per-interrupt structure. It also adds a new interrupt mailbox member (int_mbox) and converts the code to use it rather than a direct preprocessor constant. Signed-off-by:
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Matt Carlson authored
This patch converts the napi interrupt handler functions to accept and use tg3_napi structures. Signed-off-by:
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Matt Carlson authored
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:
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Matt Carlson authored
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:
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Matt Carlson authored
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:
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Matt Carlson authored
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:
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Matt Carlson authored
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:
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Matt Carlson authored
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:
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Matt Carlson authored
This patch attempts to document the various rx buffer sizes used by the driver and how they relate to each other. Signed-off-by:
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Matt Carlson authored
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:
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Matt Carlson authored
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:
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Matt Carlson authored
This patch fixes up the NVRAM detection switch statements to conform to the kernel coding style. Signed-off-by:
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Matt Carlson authored
This patch adds a new device ID for those 5785 devices that will only use 10/100 phys. Signed-off-by:
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Matt Carlson authored
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:
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roel kluin authored
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:
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Alexey Dobriyan authored
create_proc_read_entry() is going to be removed soon. Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by:
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Yoshihiro Shimoda authored
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:
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Rajashekhara, Sudhakar authored
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:
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Krzysztof Halasa authored
Fix lmc_proto_type() invocation. Signed-off-by:
Krzysztof Hałasa <khc@pm.waw.pl> Signed-off-by:
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Joe Perches authored
Signed-off-by:
Joe Perches <joe@perches.com> Tested-by:
Jens Rosenboom <jens@mcbone.net> Signed-off-by:
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John Dykstra authored
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:
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Krishna Kumar authored
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:
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David Ward authored
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:
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Michael Chan authored
- 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:
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Octavian Purdila authored
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:
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Jens Låås authored
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:
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Sascha Hlusiak authored
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:
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Eric Dumazet authored
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:
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Eric Dumazet authored
Introduce keepalive_probes(tp) helper, and use it, like keepalive_time_when(tp) and keepalive_intvl_when(tp) Signed-off-by:
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Michael Chan authored
This will allow the 10G iSCSI code to reuse the function. Signed-off-by:
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Michael Chan authored
This will allow the 10G iSCSI code to reuse the function. Signed-off-by:
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Eric Dumazet authored
Signed-off-by:
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Alexey Dobriyan authored
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:
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Stephen Hemminger authored
Increase module version, and cleanup module info. Signed-off-by:
Stephen Hemminger <shemminger@vyatta.com> Signed-off-by:
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