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2012-05-17isci: Distinguish between remote device suspension casesJeff Skirvin4-25/+28
For NCQ error conditions among others, there is no need to enable the link layer hang detect timer. Signed-off-by: Jeff Skirvin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: Remove isci_device reqs_in_process and dev_node from isci_device.Jeff Skirvin6-25/+1
Signed-off-by: Jeff Skirvin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: Only set IDEV_GONE in the device stop path.Jeff Skirvin2-26/+0
Signed-off-by: Jeff Skirvin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: All pending TCs are terminated when the RNC is invalidated.Jeff Skirvin1-2/+2
Signed-off-by: Jeff Skirvin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: Device access in the error path does not depend on IDEV_GONE.Jeff Skirvin1-2/+5
Signed-off-by: Jeff Skirvin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: Add suspension cases for RNC INVALIDATING, POSTING states.Jeff Skirvin4-63/+105
The RNC can be any of the states in the loop from suspended to ready when the API "suspend" or "resume" are called. This change adds destination states parameters that control the suspension / resumption action of the RNC statemachine for those transition states. Signed-off-by: Jeff Skirvin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: Redesign device suspension, abort, cleanup.Jeff Skirvin11-1474/+418
This commit changes the means by which outstanding I/Os are handled for cleanup. The likelihood is that this commit will be broken into smaller pieces, however that will be a later revision. Among the changes: - All completion structures have been removed from the tmf and abort paths. - Now using one completed I/O list, with the I/O completed in host bit being used to select error or normal callback paths. Signed-off-by: Jeff Skirvin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: Escalate to I_T_Nexus_Reset when the device is gone.Jeff Skirvin1-2/+2
If LUN reset sees that the device is gone, it returns TMF_RESP_FUNC_FAILED to cause libsas to escalate to an I_T_Nexus_Reset. Signed-off-by: Jeff Skirvin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: Remote device stop also suspends the RNC and terminates I/O.Jeff Skirvin1-12/+11
Fixing the remote device state machine to suspend and terminate all outstanding I/O before the device stopped state is reached. Signed-off-by: Jeff Skirvin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: Remote device must be suspended for NCQ cleanup.Jeff Skirvin1-13/+12
When the remote device enters the NCQ error state, the device must be suspended so that the I/O terminations can take place. Signed-off-by: Jeff Skirvin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: Manage device suspensions during TC terminations.Jeff Skirvin3-49/+154
TCs must be terminated only while the RNC is suspended. This commit adds remote device suspensions and resumptions in the abort, reset and termination paths. Signed-off-by: Jeff Skirvin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: Terminate outstanding TCs on TX/RX RNC suspensions.Jeff Skirvin7-32/+188
TCs must only be terminated when RNCs are suspended. Signed-off-by: Jeff Skirvin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: Handle all suspending TC completionsJeff Skirvin7-87/+242
Add comprehensive decode for all TC completions that generate RNC suspensions. Note that this commit also removes unconditional resumptions of ATAPI devices when in the SCI_STP_DEV_ATAPI_ERROR state, and STP devices when in the SCI_STP_DEV_IDLE state. This is because the SCI_STP_DEV_IDLE and SCI_STP_DEV_ATAPI state entry functions manage the RNC resumption. Signed-off-by: Jeff Skirvin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: Fixed bug in resumption from RNC Tx/Rx suspend state.Jeff Skirvin1-5/+7
The resumption from the Tx/Rx suspended state should work the same as the Tx suspended state. Signed-off-by: Jeff Skirvin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: Manage the link layer hang detect timer for RNC suspensions.Jeff Skirvin4-2/+51
For STP devices under certain protocol conditions, an RNC will not suspend until the current transfer state is broken with a SYNC/ESC sequence from the SCU. The SYNC/ESC driven by expiration of the SCU link layer hang detect timer, which has too small a dynamic range to support slow SATA devices, so normally it is disabled. This change enables the timer with the minimum period at the point when the suspension is requested. Note that there is potential collateral damage to other open connections to slow SATA devices on the same port, since there is no alternative but to enable the LLHANG timer on every phy in the port for the current suspension request - there is no way to tell on which phy the RNC in question is currently active. Signed-off-by: Jeff Skirvin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17drivers/net: delete all code/drivers depending on CONFIG_MCAPaul Gortmaker19-5369/+18
The support for CONFIG_MCA is being removed, since the 20 year old hardware simply isn't capable of meeting today's software demands on CPU and memory resources. This commit removes any MCA specific net drivers, and removes any MCA specific probe/support code from drivers that were doing a dual ISA/MCA role. Cc: "David S. Miller" <[email protected]> Cc: James Bottomley <[email protected]> Cc: [email protected] Signed-off-by: Paul Gortmaker <[email protected]>
2012-05-17serial: bfin_uart: Make MMR access compatible with 32 bits bf609 style ↵Sonic Zhang1-16/+4
controller. Simplify serial data width calculation and adapt to bf609 LCR bit mask. Signed-off-by: Sonic Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-05-17serial: bfin_uart: RTS and CTS MMRs can be either 16-bit width or 32-bit width.Sonic Zhang1-12/+10
Change hardware flow control code to adapt to both bf5xx and bf60x. Disabled serial device before set termios for bf60x. Signed-off-by: Sonic Zhang <[email protected]> Signed-off-by: Bob Liu <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-05-17serial: bfin_uart: narrow the reboot condition in DMA tx interruptSonic Zhang1-1/+1
Check if xmit buffer pointers are set to zero. Signed-off-by: Sonic Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-05-17serial: bfin_uart: Adapt bf5xx serial driver to bf60x serial4 controller.Sonic Zhang1-19/+13
The serial4 controller on bf60x is an enhanced version of serial controller on bf5xx. MMR size is 32 bits other than 16 bits. MMR GCTL, MCR and LCR are combined into one control MMR. MSR and LSR are combined into one status MMR. This patch adapts current bf5xx serial driver to serial4 controller on bf60x. Signed-off-by: Sonic Zhang <[email protected]> Signed-off-by: Bob Liu <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-05-17Merge branch '3.4-urgent' of ↵Linus Torvalds2-6/+19
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending Pull two more target-core updates from Nicholas Bellinger: "The first patch addresses a SPC-2 reservations RELEASE bug in a special (iscsi specific) multi-ISID setup case that was allowing the same initiator to be able to incorrect release it's own reservation on a different SCSI path with enforce_pr_isid=1 operation. This bug was caught by Bernhard Kohl. The second patch is to address a bug with FILEIO backends where the incorrect number of blocks for READ_CAPACITY was being reported after an underlying device-mapper block_device size change. This patch uses now i_size_read() in fd_get_blocks() for FILEIO backends with an underlying block_device, instead of trying to determine this value at setup time during fd_create_virtdevice(). (hch CC'ed) Both are CC'ed to stable." * '3.4-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: target: Fix bug in handling of FILEIO + block_device resize ops target: Fix SPC-2 RELEASE bug for multi-session iSCSI client setups
2012-05-17net/mlx4_en: num cores tx rings for every UPAmir Vadai4-24/+47
Change the TX ring scheme such that the number of rings for untagged packets and for tagged packets (per each of the vlan priorities) is the same, unlike the current situation where for tagged traffic there's one ring per priority and for untagged rings as the number of core. Queue selection is done as follows: If the mqprio qdisc is operates on the interface, such that the core networking code invoked the device setup_tc ndo callback, a mapping of skb->priority => queue set is forced - for both, tagged and untagged traffic. Else, the egress map skb->priority => User priority is used for tagged traffic, and all untagged traffic is sent through tx rings of UP 0. The patch follows the convergence of discussing that issue with John Fastabend over this thread http://comments.gmane.org/gmane.linux.network/229877 Cc: John Fastabend <[email protected]> Cc: Liran Liss <[email protected]> Signed-off-by: Amir Vadai <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-05-17staging: gdm72xx depends on NETRandy Dunlap1-0/+1
gdm72xx uses networking interfaces, so it should depend at least on NET (maybe on WIMAX?). ERROR: "sock_release" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "netif_carrier_on" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "netif_carrier_off" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "skb_realloc_headroom" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "netif_rx" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "netlink_kernel_create" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "netif_rx_ni" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "dev_alloc_skb" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "free_netdev" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "register_netdev" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "skb_push" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "dev_get_by_index" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "skb_pull" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "init_net" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "__alloc_skb" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "netlink_broadcast" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "kfree_skb" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "alloc_netdev_mqs" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "eth_type_trans" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "ether_setup" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "unregister_netdev" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "__netif_schedule" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "skb_put" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "sock_wfree" [drivers/staging/gdm72xx/gdmwm.ko] undefined! ERROR: "__nlmsg_put" [drivers/staging/gdm72xx/gdmwm.ko] undefined! Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-05-17staging: gdm72xx: Set up parent link in sysfs for gdm72xx devicesPaul Stewart4-4/+5
This patch uses SET_NETDEV_DEV to set up a 'device' parent link in sysfs (e.g. /sys/class/net/wm0/device) for a gdm72xx device. Signed-off-by: Paul Stewart <[email protected]> Signed-off-by: Ben Chan <[email protected]> Cc: Sage Ahn <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-05-17drop_monitor: convert to modular buildingNeil Horman2-3/+45
When I first wrote drop monitor I wrote it to just build monolithically. There is no reason it can't be built modularly as well, so lets give it that flexibiity. I've tested this by building it as both a module and monolithically, and it seems to work quite well Change notes: v2) * fixed for_each_present_cpu loops to be more correct as per Eric D. * Converted exit path failures to BUG_ON as per Ben H. v3) * Converted del_timer to del_timer_sync to close race noted by Ben H. Signed-off-by: Neil Horman <[email protected]> CC: "David S. Miller" <[email protected]> CC: Eric Dumazet <[email protected]> CC: Ben Hutchings <[email protected]> Reviewed-by: Ben Hutchings <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-05-17net: netdev_alloc_skb() use build_skb()Eric Dumazet1-1/+31
netdev_alloc_skb() is used by networks driver in their RX path to allocate an skb to receive an incoming frame. With recent skb->head_frag infrastructure, it makes sense to change netdev_alloc_skb() to use build_skb() and a frag allocator. This permits a zero copy splice(socket->pipe), and better GRO or TCP coalescing. Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-05-17ipv6: correct the ipv6 option name - Pad0 to Pad1Eldad Zack7-10/+10
The padding destination or hop-by-hop option is called Pad1 and not Pad0. See RFC2460 (4.2) or the IANA ipv6-parameters registry: http://www.iana.org/assignments/ipv6-parameters/ipv6-parameters.xml Signed-off-by: Eldad Zack <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-05-17etherdevice: fix commentsstephen hemminger1-8/+6
Fix some minor problems in comments of etherdevice.h * Warning is out dated, file hasn't moved or disappeared in many years and is unlikely to do so soon. * Capitalize Ethernet consistently since it is a proper name * Fix descriptive comment of padding * Spelling and grammar fix for alignment comment Signed-off-by: Stephen Hemminger <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-05-17pppoe: remove unused return value from two methods.Rami Rosen1-9/+3
The patch removes unused return value from __delete_item() and delete_item() methods in drivers/net/ppp/pppoe.c. Signed-off-by: Rami Rosen <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-05-17isci: fix oem parameter validation on single controller skusDan Williams1-1/+1
OEM parameters [1] are parsed from the platform option-rom / efi driver. By default the driver was validating the parameters for the dual-controller case, but in single-controller case only the first set of parameters may be valid. Limit the validation to the number of actual controllers detected otherwise the driver may fail to parse the valid parameters leading to driver-load or runtime failures. [1] the platform specific set of phy address, configuration,and analog tuning values [stable v3.0+] Cc: <[email protected]> Reported-by: Dave Jiang <[email protected]> Tested-by: Dave Jiang <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: enable BCN in sci_port_add_phy()Maciej Trela1-0/+2
Ensure we enable receiving BCN's from the hardware when adding phy to isci_port. Otherwise if we get BCN before the port is created we won't see any BCN Signed-off-by: Maciej Trela <[email protected]> Reported-by: Richard Boyd <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: Changes in COMSAS timings enabling ISCI to detect buggy disc drives.Andrzej Jakowski2-0/+63
This patch extends timings in COMSAS signaling, so ISCI can detect disc drives having issues to send COMSAS in correct time frame. Signed-off-by: Andrzej Jakowski <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: kill isci_host.shostDan Williams2-10/+12
We can retrieve the shost from the sas_ha like the rest of libsas and drop this out of our local data structure. Acked-by: Jacek Danecki <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: fix interrupt disableDan Williams2-13/+27
There is a (dubious?) lost irq workaround in sci_controller_isr() that effectively nullifies attempts to disable interrupts. Until the workaround can be re-evaluated add some infrastructure to prevent the interrupt handler from inadvertantly re-enabling interrupts. The failure mode was interrupts continuing to run after the driver had been removed and its iomappings torn down. Reported-by: Jacek Danecki <[email protected]> Tested-by: Jacek Danecki <[email protected]> [richard: clear remaining interrupts at the end of reset] Acked-by: Richard Boyd <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: fix 'link-up' events occur after 'start-complete'Dan Williams3-38/+50
The call to wait_for_start() is meant to ensure that all links have been given a chance to come up before letting the kernel proceed with probing. However, the implementation is not correctly syncing with the port configuration agent. In the MPC case the ports are hard-coded, in the APC case we need to wait for the port-configuration to form ports from the started phys. Towards that end increase the timeout for the APC agent to form ports, and delay start complete until all phys are out of link-training. Cc: <[email protected]> Cc: Richard Boyd <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: fix controller stopDan Williams2-52/+55
1/ notify waiters when controller stop completes (fixes 10 second stall unloading the driver) 2/ make sure phy stop is after port and device stop Cc: Richard Boyd <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: refactor initialization for S3/S4Dan Williams8-360/+277
Based on an original implementation by Ed Nadolski and Artur Wojcik In preparation for S3/S4 support refactor initialization so that driver-load and resume-from-suspend can share the common init path of isci_host_init(). Organize the initialization into objects that are self-contained to the driver (initialized by isci_host_init) versus those that have some upward registration (initialized at allocation time asd_sas_phy, asd_sas_port, dma allocations). The largest change is moving the the validation of the oem and module parameters from isci_host_init() to isci_host_alloc(). The S3/S4 approach being taken is that libsas will be tasked with remembering the state of the domain and the lldd is free to be forgetful. In the case of isci we'll just re-init using a subset of the normal driver load path. [clean up some unused / mis-indented function definitions in host.h] Signed-off-by: Ed Nadolski <[email protected]> Signed-off-by: Artur Wojcik <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: kill isci_port.domain_dev_listDan Williams3-15/+6
Another unused field, and isci_port_init is overkill. Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: kill ->status, and ->state_lock in isci_hostDan Williams2-34/+0
They serve no incremental purpose over the existing sas_ha state. Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: Don't filter BROADCAST CHANGE primitivesTom Jackson1-0/+7
Per the SAS spec, several types of BROADCAST CHANGE primitives must cause re-discovery of the originating expander. Only the standard BROADCAST CHANGE primitive was being sent to the LIBSAS layer. The other BC primitives have been added to the sci_phy_event_handler() Signed-off-by: Tom Jackson <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: kill sci_phy_protocol and sci_request_protocolDan Williams7-37/+22
Holdovers from the initial driver cleanup, replace with enum sas_protocol. Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: kill ->is_direct_attachedDan Williams5-49/+17
domain_device ->parent conveys the same information. Occurrences of ->is_direct_attached appear next to incomplete open-coded versions of dev_is_sata(), clean those up as well. Signed-off-by: Dan Williams <[email protected]>
2012-05-17isci: improve 'invalid state' warningsDan Williams2-30/+36
Convert controller state machine warnings to emit the state number (it missed the number to string conversion, but since these error rarely happen not much motivation to go further). Fix up the rnc warnings to use the state name. Signed-off-by: Dan Williams <[email protected]>
2012-05-17Merge branch 'master' of ↵David S. Miller4-26/+11
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
2012-05-17iscsi-target: remove dead code in iscsi_check_valuelist_for_supportDan Carpenter1-9/+0
Neither "acceptor_values" nor "proposer_values" can be NULL here when scanning the value lists for incoming iSCSI login parameters such as HeaderDigest=CRC32C,None. Smatch complains because we are not allowed to pass NULL pointers to strchr(). Also I removed a second later check for "!acceptor_values" because it gets checked on the next line in the do while condition. Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]>
2012-05-17target: Fix bug in handling of FILEIO + block_device resize opsNicholas Bellinger1-6/+16
This patch fixes a bug in the handling of FILEIO w/ underlying block_device resize operations where the original fd_dev->fd_dev_size was incorrectly being used in fd_get_blocks() for READ_CAPACITY response payloads. This patch avoids using fd_dev->fd_dev_size for FILEIO devices with an underlying block_device, and instead changes fd_get_blocks() to get the sector count directly from i_size_read() as recommended by hch. Reported-by: Christoph Hellwig <[email protected]> Cc: <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]>
2012-05-17tcp: bool conversionsEric Dumazet9-216/+219
bool conversions where possible. __inline__ -> inline space cleanups Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-05-17USB: gpio_vbus: wakeup support on GPIO VBUS interruptsShinya Kuribayashi2-0/+35
We'd like to see the system waking up from the system-wide suspend when it gets plugged-in, or the USB cable is pulled out. Also makes it configurable via platform data 'wakeup'. Signed-off-by: Shinya Kuribayashi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-05-17USB: gpio_vbus: a missing cancellation of workqueue in remove() functionShinya Kuribayashi1-0/+1
Signed-off-by: Shinya Kuribayashi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-05-17USB: gpio_vbus: handle IRQ flags properlyShinya Kuribayashi1-5/+6
Currently, 'res->flags' handlings are wrong in three respects: * the driver _modifies_ the contents of platform data * res->flags is set up, but not used anywhere in the driver * request_irq() always takes VBUS_IRQ_FLAGS, regardless of refs->flags This patch tries to fix this with a policy: If a platform IRQ resource is available, give preference to its IRQ flag(s) over a default one (VBUS_IRQ_FLAGS). Signed-off-by: Shinya Kuribayashi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
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