- 23 Apr, 2009 9 commits
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David S. Miller authored
Conflicts: net/iucv/af_iucv.c
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Hendrik Brueckner authored
The SO_MSGLIMIT socket option modifies the message limit for new IUCV communication paths. The message limit specifies the maximum number of outstanding messages that are allowed for connections. This setting can be lowered by z/VM when an IUCV connection is established. Expects an integer value in the range of 1 to 65535. The default value is 65535. The message limit must be set before calling connect() or listen() for sockets. If sockets are already connected or in state listen, changing the message limit is not supported. For reading the message limit value, unconnected sockets return the limit that has been set or the default limit. For connected sockets, the actual message limit is returned. The actual message limit is assigned by z/VM for each connection and it depends on IUCV MSGLIMIT authorizations specified for the z/VM guest virtual machine. Signed-off-by:
Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by:
Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Hendrik Brueckner authored
If the skb cannot be copied to user iovec, always return -EFAULT. The skb is enqueued again, except MSG_PEEK flag is set, to allow user space applications to correct its iovec pointer. Signed-off-by:
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Hendrik Brueckner authored
This patch provides the socket type SOCK_SEQPACKET in addition to SOCK_STREAM. AF_IUCV sockets of type SOCK_SEQPACKET supports an 1:1 mapping of socket read or write operations to complete IUCV messages. Socket data or IUCV message data is not fragmented as this is the case for SOCK_STREAM sockets. The intention is to help application developers who write applications or device drivers using native IUCV interfaces (Linux kernel or z/VM IUCV interfaces). Signed-off-by:
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Hendrik Brueckner authored
Allow 'classification' of socket data that is sent or received over an af_iucv socket. For classification of data, the target class of an (native) iucv message is used. This patch provides the cmsg interface for iucv_sock_recvmsg() and iucv_sock_sendmsg(). Applications can use the msg_control field of struct msghdr to set or get the target class as a "socket control message" (SCM/CMSG). Signed-off-by:
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Hendrik Brueckner authored
The patch allows to send and receive data in the parameter list of an iucv message. The parameter list is an arry of 8 bytes that are used by af_iucv as follows: 0..6 7 bytes for socket data and 7 1 byte to store the data length. Instead of storing the data length directly, the difference between 0xFF and the data length is used. This convention does not interfere with the existing use of PRM messages for shutting down the send direction of an AF_IUCV socket (shutdown() operation). Data lenghts greater than 7 (or PRM message byte 8 is less than 0xF8) denotes to special messages. Currently, the special SEND_SHUTDOWN message is supported only. To use IPRM messages, both communicators must set the IUCV_IPRMDATA flag during path negotiation, i.e. in iucv_connect() and path_pending(). To be compatible to older af_iucv implementations, sending PRM messages is controlled by the socket option SO_IPRMDATA_MSG. Receiving PRM messages does not depend on the socket option (but requires the IUCV_IPRMDATA path flag to be set). Sending/Receiving data in the parameter list improves performance for small amounts of data by reducing message_completion() interrupts and memory copy operations. Signed-off-by:
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Hendrik Brueckner authored
Provide the socket operations getsocktopt() and setsockopt() to enable/disable sending of data in the parameter list of IUCV messages. The patch sets respective flag only. Signed-off-by:
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Hendrik Brueckner authored
If the af_iucv communication partner quiesces the path to shutdown its receive direction, provide a quiesce callback implementation to shutdown the (local) send direction. This ensures that both sides are synchronized. Signed-off-by:
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Ursula Braun authored
Some of the IUCV commands can be invoked in interrupt context. Those commands need a different per-cpu IUCV command parameter block, otherwise they might overwrite an IUCV command parameter of a not yet finished IUCV command invocation in process context. Signed-off-by:
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- 22 Apr, 2009 13 commits
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Pablo Neira Ayuso authored
This patch fixes a (bogus?) gcc warning during compilation: net/netfilter/nf_conntrack_netlink.c:1234: warning: 'helpname' may be used uninitialized in this function net/netfilter/nf_conntrack_netlink.c:991: warning: 'helpname' may be used uninitialized in this function In fact, helpname is initialized by ctnetlink_parse_help() so I cannot see a way to use it without being initialized. Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by:
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Mateusz Mandera authored
This trivial patch just "gets rid of" init_module and cleanup_module from drivers/net/8390p.c Signed-off-by:
Mateusz Mandera <ormi.linux@gmail.com> Signed-off-by:
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Jean Delvare authored
Patch "af_rose/x25: Sanity check the maximum user frame size" (commit 83e0bbcb) from Alan Cox got locking wrong. If we bail out due to user frame size being too large, we must unlock the socket beforehand. Signed-off-by:
Jean Delvare <jdelvare@suse.de> Signed-off-by:
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Jesse Brandeburg authored
It was pointed out that the Intel wired ethernet drivers do not need to wake the tx queue since netif_carrier_on/off will take care of the qdisc management in order to guarantee the correct handling of the transmit routine enable state. Signed-off-by:
Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
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Paul Moore authored
The NetLabel address selector mechanism has a problem where it can get mistakenly remove the wrong selector when similar addresses are used. The problem is caused when multiple addresses are configured that have different netmasks but the same address, e.g. 127.0.0.0/8 and 127.0.0.0/24. This patch fixes the problem. Reported-by:
Etienne Basset <etienne.basset@numericable.fr> Signed-off-by:
Paul Moore <paul.moore@hp.com> Acked-by:
James Morris <jmorris@namei.org> Tested-by:
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Heiko Schocher authored
If using the UCC on a MPC8360 in RMII mode, don;t set UCC_GETH_UPSMR_RPM bit in the upsmr register. Signed-off-by:
Heiko Schocher <hs@denx.de> Acked-by:
Li Yang <leoli@freescale.com> Signed-off-by:
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Jianjun kong authored
While ifconfig eth0 up kernel calls open() of 8139 driver(8139too.c). In rtl8139_hw_start() of rtl8139_open(), 8139 driver enable RX before setting up the DMA buffer address. In this interval where RX was enabled and DMA buffer address is not yet set up, any incoming broadcast packet would be send to a strange physical address: 0x003e8800 which is the default value of DMA buffer address. Unfortunately, this address is used by Linux kernel. So kernel panics. This patch fix it by setting up DMA buffer address before RX enabled and everything is fine even under broadcast packets attack. Signed-off-by:
Jonathan Lin <jon.lin@vatics.com> Signed-off-by:
Amos Kong <jianjun@zeuux.org> Signed-off-by:
Eric Dumazet <dada1@cosmosbay.com> Signed-off-by:
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Hendrik Brueckner authored
AF_IUCV runs into a race when queuing incoming iucv messages and receiving the resulting backlog. If the Linux system is under pressure (high load or steal time), the message queue grows up, but messages are not received and queued onto the backlog queue. In that case, applications do not receive any data with recvmsg() even if AF_IUCV puts incoming messages onto the message queue. The race can be avoided if the message queue spinlock in the message_pending callback is spreaded across the entire callback function. Signed-off-by:
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Hendrik Brueckner authored
Add few more sk states in iucv_sock_shutdown(). Signed-off-by:
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Hendrik Brueckner authored
Reject incoming iucv messages if the receive direction has been shut down. It avoids that the queue of outstanding messages increases and exceeds the message limit of the iucv communication path. Signed-off-by:
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Hendrik Brueckner authored
If iucv_sock_recvmsg() is called with MSG_PEEK flag set, the skb is enqueued twice. If the socket is then closed, the pointer to the skb is freed twice. Remove the skb_queue_head() call for MSG_PEEK, because the skb_recv_datagram() function already handles MSG_PEEK (does not dequeue the skb). Signed-off-by:
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Ursula Braun authored
Make sure a second invocation of iucv_sock_close() guarantees proper freeing of an iucv path. Signed-off-by:
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Alexander Beregalov authored
Fix simple typo. Caused by commit a1de9666 ("irda/sa1100_ir: convert to net_device_ops"). Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by:
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- 21 Apr, 2009 18 commits
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Reinette Chatre authored
A few issues wrt DMA were uncovered when using the driver with swiotlb. - driver should not use memory after it has been mapped - iwl3945's RX queue management cannot use all of iwlagn because the size of the RX buffer is different. Revert back to using iwl3945 specific routines that map/unmap memory. - no need to "dma_syn_single_range_for_cpu" followed by pci_unmap_single, we can just call pci_unmap_single initially - only map the memory area that will be used by device. this is especially relevant to the mapping of iwl_cmd. we should not map the entire structure because the meta data at the beginning of structure contains the address to be used later for unmapping. If the address to be used for unmapping is stored in mapped data it creates a problem. - ensure that _if_ memory needs to be modified after it is mapped that we call _sync_single_for_cpu first, and then release it back to device with _sync_single_for_device - we mapped the wrong length of data for host commands, with mapped length differing with length provided to device, fix that. Thanks to Jason Andryuk <jandryuk@gmail.com> for significant bisecting help to find these issues. This fixes http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1964Signed-off-by:
Reinette Chatre <reinette.chatre@intel.com> Tested-by:
Jason Andryuk <jandryuk@gmail.com> Tested-by:
Ben Gamari <bgamari@gmail.com> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Reinette Chatre authored
When debugging TX issues it is helpful to know the seq nr of the frame being transmitted. The seq nr is printed as part of ucode's log informing us which frame is being processed. Having this information printed in driver log makes it easy to match activities between driver and firmware. Also make possible to print TX flags directly. These are already printed as part of entire TX command, but having it printed directly in cpu format makes it easier to look at. Signed-off-by:
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Rami Rosen authored
This patch fixes a build warning in mwl8.c. (Marvell TOPDOG wireless driver) The warning it fixes is: "large integer implicitly truncated to unsigned type." The rx_ctrl member of the mwl8k_rx_desc struct is 8 bit (__u8 ), whereas trying to assign it a 32 bit value (which is returned from cpu_to_le32()) causes the compiler to issue a truncation warning. Signed-off-by:
Rami Rosen <ramirose@gmail.com> Signed-off-by:
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Johannes Berg authored
When checking whether or not a given frame needs to be moved to be properly aligned to a 4-byte boundary, we use & 4 which wasn't intended, this code should check the lowest two bits. Signed-off-by:
Johannes Berg <johannes@sipsolutions.net> Signed-off-by:
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Reinette Chatre authored
It is expected that config interface will always succeed as mac80211 will only request what driver supports. The exception here is when a device has rfkill enabled. At this time the rfkill state is unknown to mac80211 and config interface can fail. When this happens we deal with this error instead of printing a WARN. Signed-off-by:
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Reinette Chatre authored
Users reported lockup with work still trying to run after module has been unloaded. http://thread.gmane.org/gmane.linux.kernel.wireless.general/30594/focus=30601Signed-off-by:
TJ <ubuntu@tjworld.net> Reported-by:
Huaxu Wan <huaxu.wan@linux.intel.com> Signed-off-by:
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Jay Sternberg authored
Fix the bug where some revisions of 6000 series hardware cannot be used. Later versions of 6000 series have the EEPROM replaced by OTP. For these devices to be used we need to expand valid EEPROM mask. Signed-off-by:
Jay Sternberg <jay.e.sternberg@linux.intel.com> Signed-off-by:
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Michael S. Tsirkin authored
aio_write gets const struct iovec * but tun_chr_aio_write casts this to struct iovec * and modifies the iovec. As a result, attempts to use io_submit to send packets to a tun device fail with weird errors such as EINVAL. Since tun is the only user of skb_copy_datagram_from_iovec, we can fix this simply by changing the later so that it does not touch the iovec passed to it. Signed-off-by:
Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
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Michael S. Tsirkin authored
aio_read gets const struct iovec * but tun_chr_aio_read casts this to struct iovec * and modifies the iovec. As a result, attempts to use io_submit to get packets from a tun device fail with weird errors such as EINVAL. Fix by using the new skb_copy_datagram_const_iovec. Signed-off-by:
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Michael S. Tsirkin authored
There's an skb_copy_datagram_iovec() to copy out of a paged skb, but it modifies the iovec, and does not support starting at an offset in the destination. We want both in tun.c, so let's add the function. It's a carbon copy of skb_copy_datagram_iovec() with enough changes to be annoying. Signed-off-by:
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Johannes Berg authored
sparse says: drivers/net/wireless/atmel.c:1501:3: warning: Initializer entry defined twice drivers/net/wireless/atmel.c:1505:3: also defined here and it's correct; atmel has its own ndo_change_mtu and shouldn't use eth_change_mtu. Signed-off-by:
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Joakim Tjernlund authored
This will make the system alot more responsive while ping flooding the ucc_geth ethernet interface. Also set NAPI weight to 64 as this is a common value. Signed-off-by:
Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by:
Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by:
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Ken Kawasaki authored
pcnet_cs: add cis(firmware) of the Allied Telesis LA-PCM Signed-off-by:
Ken Kawasaki <ken_kawasaki@spring.nifty.jp> Signed-off-by:
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Jianjun Kong authored
unify the struct's name of "struct rtl8139_private *np" to "struct rtl8139_private *tp" most of them like this: struct rtl8139_private *tp = netdev_priv(dev); Signed-off-by:
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Patrick McHardy authored
Signed-off-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
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Peter Holik authored
usb driver for intellon int51x1 based PLC like devolo dlan duo with improvements suggested by the guys of the mailinglist: - name and prefix with int51x1 (Florian Fainelli) - use conversion functions cpu_to_le16 / le16_to_cpu (Oliver Neukum) - use pskb_may_pull instead of skb->len (Ilpo Järvinen) - better code in tx_fixup (Ilpo Järvinen) - use gotos for error handling (Ilpo Järvinen) - better description (Jon Smirl) Signed-off-by:
Peter Holik <peter@holik.at> Signed-off-by:
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Peter Holik authored
because of using the same function get_ethernet_addr as cdc_ether.c i export usbnet_get_ethernet_addr from usbnet and fixed cdc_ether (suggested by Oliver Neukum). Signed-off-by:
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Roland Dreier authored
If creating a workqueue fails, don't jump to the error path where that same workqueue is destroyed, since destroy_workqueue() can't handle a NULL pointer. This was spotted by the Coverity checker (CID 2617). Signed-off-by:
Roland Dreier <rolandd@cisco.com> Signed-off-by:
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