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* isdn: convert to netdev_tx_tStephen Hemminger2009-09-01
| | | | | Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* convert hamradio drivers to netdev_txreturnt_tStephen Hemminger2009-09-01
| | | | | Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* convert ATM drivers to netdev_tx_tStephen Hemminger2009-09-01
| | | | | Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netdev: convert pseudo-devices to netdev_tx_tStephen Hemminger2009-09-01
| | | | | Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netdev: change transmit to limited range typeStephen Hemminger2009-09-01
| | | | | | | | | The transmit function should only return one of three possible values, some drivers got confused and returned errno's or other values. This changes the definition so that this can be caught at compile time. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* s2io: Generate complete messages using single line DBG_PRINTsJoe Perches2009-08-31
| | | | | | | | | | | | | | | | | | | | | Single line log messages should be emitted by a single call where possible. Converted multiple calls to DBG_PRINT to single call form. Removed "s2io:" preface from DBG_PRINTs. The DBG_PRINT macro now emits a log level and is surrounded by a do {...} while (0) All s2io log output is now prefaced with KBUILD_MODNAME ": " via pr_fmt. The DBG_PRINT macro should probably be converted to use the dev_<level> form eventually. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* s2io.c: Convert skipped nic->config.tx_cfg[i]. to tx_cfg->Joe Perches2009-08-31
| | | | | | | | Missed doing the conversion in earlier patch. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* s2io.c: Standardize statistics accessorsJoe Perches2009-08-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Regularize the declaration and uses of struct config_param *config = &sp->config; struct mac_info *mac_control = &sp->mac_control; and use struct stat_block *stats = mac_control->stats_info; struct swStat *swstats = &stats->sw_stat; struct xpakStat *xstats = &stats->xpak_stat; and convert the longish uses like nic->mac_control.stats_info->sw_stat.<foo> to swstats-><foo> etc. This also makes the statistics code marginally smaller and presumably faster. Old: $ size s2io.o text data bss dec hex filename 114289 516 33360 148165 242c5 s2io.o New: $ size s2io.o text data bss dec hex filename 114097 516 33360 147973 24205 s2io.o Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* s2io.c: fix spelling explainationJoe Perches2009-08-31
| | | | | | Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* s2io.c: convert printks to pr_<level>Joe Perches2009-08-31
| | | | | | | | Fixed trivial typo as well Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* s2io.c: Make more conforming to normal kernel styleJoe Perches2009-08-31
| | | | | | | | | | | | | Still has a few long lines. checkpatch was: total: 263 errors, 53 warnings, 8751 lines checked is: total: 4 errors, 35 warnings, 8767 lines checked Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* s2io.c: use kzallocJoe Perches2009-08-31
| | | | | | Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* s2io.c: Use calculated size in kmallocsJoe Perches2009-08-31
| | | | | | | | Use consistent style. Don't calculate the kmalloc size multiple times Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* s2io.c: Shorten code line length by using intermediate pointersJoe Perches2009-08-31
| | | | | | | | | | | | | | Repeated variable use and line wrapping is hard to read. Use temp variables instead of direct references. struct fifo_info *fifo = &mac_control->fifos[i]; struct ring_info *ring = &mac_control->rings[i]; struct tx_fifo_config *tx_cfg = &config->tx_cfg[i]; struct rx_ring_config *rx_cfg = &config->rx_cfg[i]; Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* s2io.c: Use const for stringsJoe Perches2009-08-31
| | | | | | Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* pkt_sched: Fix resource limiting in pfifo_fastKrishna Kumar2009-08-31
| | | | | | | | | | | | | | | | | | pfifo_fast_enqueue has this check: if (skb_queue_len(list) < qdisc_dev(qdisc)->tx_queue_len) { which allows each band to enqueue upto tx_queue_len skbs for a total of 3*tx_queue_len skbs. I am not sure if this was the intention of limiting in qdisc. Patch compiled and 32 simultaneous netperf testing ran fine. Also: # tc -s qdisc show dev eth2 qdisc pfifo_fast 0: root bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1 Sent 16835026752 bytes 373116 pkt (dropped 0, overlimits 0 requeues 25) rate 0bit 0pps backlog 0b 0p requeues 25 Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: convert remaining non-symbolic return values in dev_queue_xmitKrishna Kumar2009-08-31
| | | | | | | Patch compiled and 32 simultaneous netperf testing ran fine. Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netdevice: Consolidate to use existing macros where available.Krishna Kumar2009-08-31
| | | | | | | Patch compiled and 32 simultaneous netperf testing ran fine. Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* can: use correct NET_RX_ return valuesOliver Hartkopp2009-08-31
| | | | | | | | Dropped skb's should be documented by an appropriate return value. Use the correct NET_RX_DROP and NET_RX_SUCCESS values for that reason. Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* WAN: bit and/or confusionroel kluin2009-08-31
| | | | | | | Fix the tests that check whether Frame* bits are not set Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ucc_geth: Implement suspend/resume and Wake-On-LAN supportAnton Vorontsov2009-08-31
| | | | | | | | | | | | | | | This patch implements suspend/resume and WOL support for UCC Ethernet driver. We support two wake up events: wake on PHY/link changes and wake on magic packet. In some CPUs (like MPC8569) QE shuts down during sleep, so magic packet detection is unusable, and also on resume we should fully reinitialize UCC structures. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ucc_geth: Remove UGETH_MAGIC_PACKET Kconfig symbol and codeAnton Vorontsov2009-08-31
| | | | | | | | | | | This patch removes currently unused UGETH_MAGIC_PACKET Kconfig symbol and code, i.e. magic_packet_detection_{enable,disable} functions. The two functions each contain just two steps that we'll place into suspend/resume code path under CONFIG_PM. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ucc_geth: Factor out MAC initialization steps into a callAnton Vorontsov2009-08-31
| | | | | | | | This patch factors out MAC initialization into ucc_geth_init_mac() function that we'll use for suspend/resume. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* powerpc/qe: Implement qe_alive_during_sleep() helper functionAnton Vorontsov2009-08-31
| | | | | | | | | | | | | 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>
* ucc_geth: Fix NULL pointer dereference in uec_get_ethtool_stats()Anton Vorontsov2009-08-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 3e73fc9a12679a546284d597c1f19165792d0b83 ("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: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2009-08-31
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-next-2.6
| * Bluetooth: Add support for L2CAP 'Send RRorRNR' actionGustavo F. Padovan2009-08-26
| | | | | | | | | | | | | | | | When called, 'Send RRorRNR' should send a RNR frame if local device is busy or a RR frame otherwise. Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Handle L2CAP case when the remote receiver is busyGustavo F. Padovan2009-08-26
| | | | | | | | | | | | | | Implement all issues related to RemoteBusy in the RECV state table. Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Acknowledge L2CAP packets when receiving RR-frames (F-bit=1)Gustavo F. Padovan2009-08-26
| | | | | | | | | | | | | | | | Implement the Recv ReqSeqAndFBit event when a RR frame with F bit set is received. Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Add missing selection of CONFIG_CRC16 for L2CAP layerRandy Dunlap2009-08-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix net/bluetooth/l2cap.c build errors: l2cap.c:(.text+0x126035): undefined reference to `crc16' l2cap.c:(.text+0x126323): undefined reference to `crc16' l2cap.c:(.text+0x12668e): undefined reference to `crc16' l2cap.c:(.text+0x12683b): undefined reference to `crc16' l2cap.c:(.text+0x126956): undefined reference to `crc16' net/built-in.o:l2cap.c:(.text+0x129041): more undefined references to `crc16' follow Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Add USB autosuspend support to btusb driverOliver Neukum2009-08-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support of USB autosuspend to the btusb driver. If the device doesn't support remote wakeup, simple support based on up/down is provided. If the device supports remote wakeup, additional support for autosuspend while the interface is up is provided. This is done by queueing URBs in an anchor structure and waking the device up from a work queue on sending. Reception triggers remote wakeup. The last busy facility of the USB autosuspend code is used. To close a race between autosuspend and transmission, a counter of ongoing transmissions is maintained. Add #ifdefs for CONFIG_PM as necessary. Signed-off-by: Oliver Neukum <oliver@neukum.org> Tested-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Fix false errors from bcsp_pkt_cull functionWending Weng2009-08-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The error message "Removed only %u out of %u pkts" is printed when multiple to be acked packets are queued. if (i++ >= pkts_to_be_removed) break; This will break out of the loop and increase the counter i when i==pkts_to_be_removed and the loop ends up with i=pkts_to_be_removed+1. The following line if (i != pkts_to_be_removed) { BT_ERR("Removed only %u out of %u pkts", i, pkts_to_be_removed); } will then display the false message. The counter i must not increase on the same statement. Signed-off-by: Wending Weng <wweng@rheinmetall.ca> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Use proper *_unaligned_le{16,32} helpers for L2CAPGustavo F. Padovan2009-08-24
| | | | | | | | | | | | | | Simplify more conversions to the right endian with the proper helpers. Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Add locking scheme to L2CAP timeout callbacksGustavo F. Padovan2009-08-24
| | | | | | | | | | | | | | | | Avoid race conditions when accessing the L2CAP socket from within the timeout handlers. Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Fix rejected connection not disconnecting ACL linkLuiz Augusto von Dentz2009-08-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When using DEFER_SETUP on a RFCOMM socket, a SABM frame triggers authorization which when rejected send a DM response. This is fine according to the RFCOMM spec: the responding implementation may replace the "proper" response on the Multiplexer Control channel with a DM frame, sent on the referenced DLCI to indicate that the DLCI is not open, and that the responder would not grant a request to open it later either. But some stacks doesn't seems to cope with this leaving DLCI 0 open after receiving DM frame. To fix it properly a timer was introduced to rfcomm_session which is used to set a timeout when the last active DLC of a session is unlinked, this will give the remote stack some time to reply with a proper DISC frame on DLCI 0 avoiding both sides sending DISC to each other on stacks that follow the specification and taking care of those who don't by taking down DLCI 0. Signed-off-by: Luiz Augusto von Dentz <luiz.dentz@openbossa.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Full support for receiving L2CAP SREJ framesGustavo F. Padovan2009-08-22
| | | | | | | | | | | | | | Support for receiving of SREJ frames as specified by the state table. Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Add support for L2CAP SREJ exceptionGustavo F. Padovan2009-08-22
| | | | | | | | | | | | | | | | | | | | When L2CAP loses an I-frame we send a SREJ frame to the transmitter side requesting the lost packet. This patch implement all Recv I-frame events on SREJ_SENT state table except the ones that deal with SendRej (the REJ exception at receiver side is yet not implemented). Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Add support for FCS option to L2CAPGustavo F. Padovan2009-08-22
| | | | | | | | | | | | | | | | | | | | | | | | | | Implement CRC16 check for L2CAP packets. FCS is used by Streaming Mode and Enhanced Retransmission Mode and is a extra check for the packet content. Using CRC16 is the default, L2CAP won't use FCS only when both side send a "No FCS" request. Initially based on a patch from Nathan Holstein <nathan@lampreynetworks.com> Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Enable Streaming Mode for L2CAPGustavo F. Padovan2009-08-22
| | | | | | | | | | | | | | | | Streaming Mode is helpful for the Bluetooth streaming based profiles, such as A2DP. It doesn't have any error control or flow control. Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Add support for Retransmission and Monitor TimersGustavo F. Padovan2009-08-22
| | | | | | | | | | | | | | | | | | | | | | L2CAP uses retransmission and monitor timers to inquiry the other side about unacked I-frames. After sending each I-frame we (re)start the retransmission timer. If it expires, we start a monitor timer that send a S-frame with P bit set and wait for S-frame with F bit set. If monitor timer expires, try again, at a maximum of L2CAP_DEFAULT_MAX_TX. Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Initial support for retransmission of packets with REJ framesGustavo F. Padovan2009-08-22
| | | | | | | | | | | | | | | | | | | | | | | | When receiving an I-frame with unexpected txSeq, receiver side start the recovery procedure by sending a REJ S-frame to the transmitter side. So the transmitter can re-send the lost I-frame. This patch just adds a basic support for retransmission, it doesn't mean that ERTM now has full support for packet retransmission. Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Add support for Segmentation and Reassembly of SDUsGustavo F. Padovan2009-08-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | ERTM should use Segmentation and Reassembly to break down a SDU in many PDUs on sending data to the other side. On sending packets we queue all 'segments' until end of segmentation and just the add them to the queue for sending. On receiving we create a new SKB with the SDU reassembled. Initially based on a patch from Nathan Holstein <nathan@lampreynetworks.com> Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Add initial support for ERTM packets transfersGustavo F. Padovan2009-08-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for ERTM transfers, without retransmission, with txWindow up to 63 and with acknowledgement of packets received. Now the packets are queued before call l2cap_do_send(), so packets couldn't be sent at the time we call l2cap_sock_sendmsg(). They will be sent in an asynchronous way on later calls of l2cap_ertm_send(). Besides if an error occurs on calling l2cap_do_send() we disconnect the channel. Initially based on a patch from Nathan Holstein <nathan@lampreynetworks.com> Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Create separate l2cap_send_disconn_req() functionGustavo F. Padovan2009-08-22
| | | | | | | | | | | | | | | | The code for sending a disconnect request was repeated several times within L2CAP source code. So move this into its own function. Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Add configuration support for ERTM and Streaming modeGustavo F. Padovan2009-08-22
| | | | | | | | | | | | | | | | | | | | | | Add support to config_req and config_rsp to configure ERTM and Streaming mode. If the remote device specifies ERTM or Streaming mode, then the same mode is proposed. Otherwise ERTM or Basic mode is used. And in case of a state 2 device, the remote device should propose the same mode. If not, then the channel gets disconnected. Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Add L2CAP RFC option if ERTM is enabledMarcel Holtmann2009-08-22
| | | | | | | | | | | | | | When trying to establish a connection with Enhanced Retransmission mode enabled, the RFC option needs to be added to the configuration. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Allow setting of L2CAP ERTM via socket optionMarcel Holtmann2009-08-22
| | | | | | | | | | | | | | | | | | To enable Enhanced Retransmission mode it needs to be set via a socket option. A different mode can be set on a socket, but on listen() and connect() the mode is checked and ERTM is only allowed if it is enabled via the module parameter. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Add module option to enable L2CAP ERTM supportMarcel Holtmann2009-08-22
| | | | | | | | | | | | | | | | Since the Enhanced Retransmission mode for L2CAP is still under heavy development disable it by default and provide a module option to enable it manually for testing. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Coding style cleanup from previous rfcomm_init bug fixMarcel Holtmann2009-08-22
| | | | | | | | | | | | | | | | The rfcomm_init bug fix went into the kernel premature before it got fully reviewed and acknowledged by the Bluetooth maintainer. So fix up the coding style now. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Convert hdev->req_lock to a mutexThomas Gleixner2009-08-22
| | | | | | | | | | | | | | hdev->req_lock is used as mutex so make it a mutex. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>