- 10 Oct, 2007 40 commits
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Ilpo Järvinen authored
1) Passing wrong skb to tcp_adjust_fackets_out could corrupt fastpath_cnt_hint as tcp_skb_pcount(next_skb) is not included to it if hint points exactly to the next_skb (it's lagging behind, see sacktag). 2) When fastpath_skb_hint is put backwards to avoid dangling skb reference, the skb's pcount must also be removed from count (not included like above). Reported by Cedric Le Goater <legoater@free.fr> Signed-off-by:
Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Michael Chan authored
Signed-off-by:
Michael Chan <mchan@broadcom.com> Signed-off-by:
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Matt Carlson authored
This patch adds the support for 5784 and 5764 devices. Signed-off-by:
Matt Carlson <mcarlson@broadcom.com> Signed-off-by:
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Matt Carlson authored
Newer products change the way the ASIC revision is obtained. This patch implements how the driver will extract the revision number. This patch also adds preliminary CPMU support. CPMU stands for Central Power Management Unit. The CPMU's role is to put the chip into lower power states when the operating conditions allow it. Signed-off-by:
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Matt Carlson authored
Newer tg3 devices shuffle around the registers in PCI configuration space. This patch changes the way the driver accesses the PCI capabilities registers. Hardcoded register locations are replaced with offsets from pci_find_capability() return values. Signed-off-by:
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Auke Kok authored
A merge/cleanup code accidentally dropped 8254x code in and removed 8257x code here. Undo this mistake and use the pci-e relevant register test similar as to what is in e1000. Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by:
Jeff Garzik <jeff@garzik.org>
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Auke Kok authored
A small bug crawled in the -DDEBUG enabled code. Fix this to properly call the backreference device name. Signed-off-by:
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Ursula Braun authored
Debugging statements are added for inbound packets with unknown header id. Those packets are discarded and no longer processed as osn-packets. Signed-off-by:
Ursula Braun <braunu@de.ibm.com> Signed-off-by:
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Klaus D. Wacker authored
When the lcs irq routine detects channel failures it drives device recovery. After this event the device is no longer usable for shutdown requests, because the lcs_irq routine may get wrong channel status information. In such a case the lcs_irq routine marks the channel in 'error' state. The channel state comes back to 'running' after restarting the channels. Signed-off-by:
Klaus D. Wacker <kdwacker@de.ibm.com> Signed-off-by:
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Ursula Braun authored
if qeth_set_multicast_list() is performed on 2 CPUs in parallel, card->ip_list may end corrupted. Solution: In function __qeth_delete_all_mc() remove card->ip_list entry before invoking qeth_deregister_addr_entry(). Thus a 2nd invocation of qeth_set_multicast_list() cannot try to remove the same entry twice. Signed-off-by Ursula Braun <braunu@de.ibm.com> Signed-off-by: -
Frank Blaschka authored
Fix filling the qdio buffers in EDDP mode. Signed-off-by:
Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by:
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Klaus D. Wacker authored
HiperSockets infrastructure (layer-3 mode) supports only IPv4 or IPv6 packets. Sending other packet types disturbs TCP/IP on z/VM, which issues messages about invalid packets. Qeth send routine will detect packet type on sending over a HiperSockets interface (in layer-3 mode) and drop non IP packets. The error and drop count of the interface is incremented. Signed-off-by:
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David S. Miller authored
With cleanup suggestions and bugs spotted by Stephen Hemminger, Ingo Oeser, Matheos Worku, and Oliver Hartkopp. Signed-off-by: -
Gerrit Renker authored
This fixes two bugs in processing of connection-Requests in v{4,6}_conn_request: 1. Due to using the variable `reset_code', the Reset code generated internally by dccp_parse_options() is overwritten with the initialised value ("Too Busy") of reset_code, which is not what is intended. 2. When receiving a connection-Request on a multicast or broadcast address, no Reset should be generated, to avoid storms of such packets. Instead of jumping to the `drop' label, the v{4,6}_conn_request functions now return 0. Below is why in my understanding this is correct: When the conn_request function returns < 0, then the caller, dccp_rcv_state_process(), returns 1. In all instances where dccp_rcv_state_process is called (dccp_v4_do_rcv, dccp_v6_do_rcv, and dccp_child_process), a return value of != 0 from dccp_rcv_state_process() means that a Reset is generated. If on the other hand the conn_request function returns 0, the packet is discarded and no Reset is generated. Note: There may be a related problem when sending the Response, due to the following. if (dccp_v6_send_response(sk, req, NULL)) goto drop_and_free; /* ... */ drop_and_free: return -1; In this case, if send_response fails due to transmission errors, the next thing that is generated is a Reset with a code "Too Busy". I haven't been able to conjure up such a condition, but it might be good to change the behaviour here also (not done by this patch). Signed-off-by:Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by:
Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by:
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Gerrit Renker authored
This corrects erroneous documentation of the socket API. Signed-off-by:
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Gerrit Renker authored
The elapsed time uses u32, but printk was using %d, not %u. Signed-off-by:
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Gerrit Renker authored
This * removes a declaration of a non-existent function __dccp_minisock_init; * shifts the initialisation function dccp_minisock_init() from options.c to minisocks.c, where it is more naturally expected to be. Signed-off-by:
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Gerrit Renker authored
This replaces several uses of standard arithmetic with the DCCP sequence number arithmetic functions. The problem here is that the sequence number wrap-around was not taken into consideration. * Condition "seqp->ccid2s_seq <= prev->ccid2s_seq" has been replaced by dccp_delta_seqno(seqp->ccid2s_seq, prev->ccid2s_seq) >= 0 since if seqp is `before' prev, then the delta_seqno() is positive. * The test whether sequence numbers `a' and `b' are consecutive has the form dccp_delta_seqno(a, b) == 1 * Increment of ccid2hctx_rpseq could be done using dccp_inc_seqno(), but since here the incremented ccid2hctx_rpseq == seqno, used assignment instead. Signed-off-by:
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Gerrit Renker authored
skb's passed to ccid2_hc_tx_send_packet() are headerless, the packet type is decided later, in dccp_write_xmit(). Therefore the first test of the switch/case block is always true, the others are never reached. Signed-off-by:
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Gerrit Renker authored
This removes a test for `val < 1' which would only have been triggered when val < 0, due to a preceding test for 0. Fixed by using an unsigned type for cwnd (as in TCP) instead. Signed-off-by:
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Gerrit Renker authored
This removes an ugly BUG_ON which has been pointed out by Arnaldo. Instead of freezing up the machine, a `critical' message is now issued to the system log. There is potential of doing this more gracefully (eg. there are a few internal variables which could be updated despite the lack of memory), but that requires more complicated changes to the algorithm; thus a `FIXME' has been added. Signed-off-by:
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Gerrit Renker authored
This patch simplifies the interface of ccid2_hc_tx_alloc_seq(): * ccid2_hc_tx_alloc_seq() is always called with an argument of CCID2_SEQBUF_LEN; * other code - ccid2_hc_tx_check_sanity() - even depends on the assumption that ccid2_hc_tx_alloc_seq() has been called with this particular size; * passing the `gfp_t' argument to ccid2_hc_tx_alloc_seq() is redundant with gfp_any(). Signed-off-by: -
Gerrit Renker authored
This adds documentation on the use of service codes on client and server. Signed-off-by:
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Gerrit Renker authored
This just sets the parameter to bool, since debugging messages are either on or off. Signed-off-by:
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Gerrit Renker authored
This enables applications to query the current value of the Maximum Packet Size via a socket option, suggested as a SHOULD in (RFC 4340, p. 102). This socket option is useful to avoid the annoying bail-out via `-EMSGSIZE'. In particular, as fragmentation is not currently supported (and its use is partly discouraged in RFC 4340). With this option, it is possible to size buffers accordingly, e.g. int buflen = dccp_get_cur_mps(sockfd); /* or */ if (msgsize > dccp_get_cur_mps(sockfd)) die("message is too large for this path"); Signed-off-by: -
Gerrit Renker authored
This performs a minor optimisation: when ccid_hc_tx_send_packet returns a value greater zero, then the same call previously was done again at the begin of the while loop in dccp_wait_for_ccid. This patch exploits the available information and schedule-timeouts directly instead. Documentation also added. Signed-off-by:
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Olof Johansson authored
pasemi_mac: enable iommu support Enable IOMMU support for pasemi_mac, but avoid using it on non-partitioned systems for performance reasons. The user can override this by selecting the PPC_PASEMI_IOMMU_DMA_FORCE configuration option. Signed-off-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
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Jeff Garzik authored
Also, hopefully, change the file permissions to 0644. Signed-off-by:Jeff Garzik <jgarzik@redhat.com>
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vbarshak@ru.mvista.com authored
Fix an obvious typo in emac_xmit_finish. Signed-off-by:
Valentine Barshak <vbarshak@ru.mvista.com> Signed-off-by:
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trem authored
I've tried to compile 2.6.23-rc8-mm2, but it fails on ipg.c with the error : ERROR: "__udivdi3" [drivers/net/ipg.ko] undefined! I've instigated a bit, and I've found this code in ipg.c : static void ipg_nic_txfree(struct net_device *dev) { struct ipg_nic_private *sp = netdev_priv(dev); void __iomem *ioaddr = sp->ioaddr; const unsigned int curr = ipg_r32(TFD_LIST_PTR_0) - (sp->txd_map / sizeof(struct ipg_tx)) - 1; unsigned int released, pending; sp->txd_map is an u64 because : dma_addr_t txd_map; And in asm-i386/types.h, I see : #ifdef CONFIG_HIGHMEM64G typedef u64 dma_addr_t; #else typedef u32 dma_addr_t; #endif I my config, I use CONFIG_HIGHMEM64G sizeof(struct ipg_tx) is an u32 So the div failed on i386 because of u64 / u32. [akpm@linux-foundation.org: cleanups] Cc: Sorbica Shieh <sorbica@icplus.com.tw> Cc: Jesse Huang <jesse@icplus.com.tw> Cc: Jeff Garzik <jeff@garzik.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by:Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Olof Johansson authored
pasemi_mac: use buffer index pointer in clean_rx() Use the new features in B0 for buffer ring index on the receive side. This means we no longer have to search in the ring for where the buffer came from. Also cleanup the RX cleaning side a little, while I was at it. Note: Pre-B0 hardware is no longer supported, and needs a pile of other workarounds that are not being submitted for mainline inclusion. So the fact that this breaks old hardware is not a problem at this time. Signed-off-by:
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Olof Johansson authored
pasemi_mac: clear out old errors on interface open Clear out any pending errors when an interface is brought up. Since the bits are sticky, they might be from interface shutdown time after firmware has used it, etc. Signed-off-by:
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Olof Johansson authored
pasemi_mac: update todo list Remove some stale todo items that have been taken care of. Add a couple of upcoming ones. Signed-off-by:
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Olof Johansson authored
pasemi_mac: further performance tweaks Misc driver tweaks for pasemi_mac: * Increase ring size (really needed mostly on 10G) * Take out an unneeded barrier * Move around a few prefetches and reorder a few calls * Don't try to clean on full tx buffer, just let things take their course and stop the queue directly * Avoid filling on the same line as the interface is working on to reduce cache line bouncing * Avoid unneeded clearing of software state (and make the interface shutdown code handle it) * Fix up some of the tx ring wrap logic. Signed-off-by:
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Olof Johansson authored
pasemi_mac: add local skb alignment Add local SKB alignment to pasemi_mac, since ppc64 in general has it at 0 because of design flaws in some of the IBM server bridge chips. However, for PWRficient doing the unaligned copies is more expensive than doing unaligned DMA so make sure the data is aligned instead. Signed-off-by:
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Olof Johansson authored
pasemi_mac: workaround for erratum 5971 Implement workarounds for erratum 5971, where L2 hints aren't considered properly unless the way hint is enabled on the interface. Since L2 isn't setup to dedicate a way to headers, we need to reset the packet count by hand so it won't run out of credits. Signed-off-by:
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Olof Johansson authored
pasemi_mac: implement sg support Implement SG support for pasemi_mac Signed-off-by:
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Olof Johansson authored
pasemi_mac: rework ring management Rework ring management, switching to an opaque ring format instead of the struct-based descriptor+pointer setup, since it will be needed for SG support. Signed-off-by:
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Olof Johansson authored
pasemi_mac: fix bug in receive buffer dma mapping skb->len isn't actually set to the size of the allocated skb, so don't try to use it when figuring out how much to map. (This hasn't surfaced as a real bug because we effectively disable translation for the interface, but it still needs fixing for the future) Signed-off-by:
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Olof Johansson authored
pasemi_mac: basic error checking Add some rudimentary error checking to pasemi_mac. Signed-off-by:
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