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2010-04-11Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6David S. Miller3-0/+3
Conflicts: drivers/net/stmmac/stmmac_main.c drivers/net/wireless/wl12xx/wl1271_cmd.c drivers/net/wireless/wl12xx/wl1271_main.c drivers/net/wireless/wl12xx/wl1271_spi.c net/core/ethtool.c net/mac80211/scan.c
2010-04-03net: convert multicast list to list_headJiri Pirko1-3/+3
Converts the list and the core manipulating with it to be the same as uc_list. +uses two functions for adding/removing mc address (normal and "global" variant) instead of a function parameter. +removes dev_mcast.c completely. +exposes netdev_hw_addr_list_* macros along with __hw_addr_* functions for manipulation with lists on a sandbox (used in bonding and 80211 drivers) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.hTejun Heo3-0/+3
percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-18enic: Clean up: Change driver description; Fix tab space; Update MAINTAINERSVasanthy Kolluri2-2/+2
1) Change enic driver description to "Cisco VIC Ethernet NIC Driver" 2) Fix tab space 3) Update MAINTAINERS list Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-18enic: Clean up: Add wrapper functionsVasanthy Kolluri2-11/+44
Add wrapper functions vnic_dev_notify_setcmd and vnic_dev_notify_unsetcmd for firmware notify commands. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-18enic: Do not advertise NETIF_F_HW_VLAN_RXVasanthy Kolluri1-2/+1
Hardware does not honor vlan filters from the host and so the driver does not need to advertise this. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-18enic: Bug Fix: Fix timeout for hardware Tx and Rx queue disable operationsVasanthy Kolluri2-4/+4
The timeout for hardware Tx and Rx queue disable operations is increased to work-around an erratum for "unnamed" chipset where a DMA completion may take upto 10ms. We have to wait atleast this long for hardware to signal that Tx and Rx queues are quiesced. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-18enic: Bug Fix: Fix hardware descriptor readsVasanthy Kolluri2-5/+9
The last bit written to a completion descriptor by hardware is the color bit. Driver must read all other descriptor fields only after reading the color bit to avoid reading stale descriptor fields. There is a rmb() after reading the color bit to avoid any compiler/cpu reordering of the reads. The color bit is the generation bit that toggles each pass through the completion descriptor ring. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-22net: convert multiple drivers to use netdev_for_each_mc_addr, part4Jiri Pirko1-4/+6
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-12net: use netdev_mc_count and netdev_mc_empty when appropriateJiri Pirko1-2/+2
This patch replaces dev->mc_count in all drivers (hopefully I didn't miss anything). Used spatch and did small tweaks and conding style changes when it was suitable. Jirka Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-07drivers/net/: use DEFINE_PCI_DEVICE_TABLE()Alexey Dobriyan1-1/+1
Use DEFINE_PCI_DEVICE_TABLE() so we get place PCI ids table into correct section in every case. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-23enic: whitespace cleanup; #define cleanup; more verbose err msgScott Feldman3-9/+9
Some misc changes to cleanup whitespace issues and fix/remove some #define HW defintions. 1) fix some whitespace issues 2) more verbose err msg when resources aren't available to configure vnic 3) remove unused #define 4) fix RSS #define rss hash types Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-23enic: feature add: add ethtool -c/C supportScott Feldman6-7/+85
Only rx_usec and tx_usec options for ethtool -C are settable as those are the only settings that make sense to HW. Adds driver reporting of intr coalescing timer value in usec units rather than HW units. Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-23enic: Bug fix: align desc ring sizes to 32 descsScott Feldman1-2/+2
Previous driver was aligning ring sizes to 16 descs, but hardware actually wants desc ring sizes to be aligned to 32 descs. Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-23enic: minimize pkt filter updates to firmwareScott Feldman2-2/+7
In set_multicast(), only push pkt filter changes down to firmware if pkt filter actually changes. Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-23enic: Bug fix: try harder to fill Rx ring on skb allocation failuresScott Feldman1-21/+33
During dev->open(), make sure we get at least one skb on the Rx ring. Otherwise abort the interface load. Also, if we get skb allocation failures in NAPI poll while trying to replenish the ring, try again later so we don't end up starving out the Rx ring completely. Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-23enic: Bug fix: use safe queue shutdown in dev->stopScott Feldman3-38/+27
Fix dev->stop shutdown bug where driver was stopping xmit queue and then disabling intrs. Fix is to disable intrs first and then stop the xmit queue, otherwise an interrupt could cause the queue to be rewoken. Also, no need to explicitly do queue servicing because queues are cleaned and reset back to initial state at end of dev->stop. Servicing queues also had the side-effect of also rewakening the xmit queue, which is not what we want. Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-13net: Use netdev_alloc_skb_ip_align()Eric Dumazet1-14/+1
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03enic: organize device initialization/deinit into separate functionsScott Feldman5-75/+133
To unclutter probe() a little bit, put all device initialization code in one spot and device deinit code in another spot. Also remove unused rq->buf_index variable/func. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03enic: bug fix: check for zero port MTU before posting warningScott Feldman1-1/+1
Nic firmware can return zero for port MTU, so check for non-zero value before checking for change in port MTU. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03enic: changes to driver/firmware interfaceScott Feldman4-10/+30
Deprecate some old APIa; change arguments to stats dump all API; add new interrupt assert API Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03enic: bug fix: enable VLAN filteringScott Feldman1-1/+2
Bug fix: enable VLAN filtering Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03enic: provision for multiple Rx/Tx queues; prepare for RSS supportScott Feldman5-14/+50
Provision for multiple Rx/Tx queues. Max of 8 WQs and 8 RQs. Max for completion queue is 8+8=16 and max for interrupt resources is 8+8+2. Add driver/firmware interface for setting up RSS secret key and indirection table. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03enic: bug fix: included MAC drops in rx_dropped netstatScott Feldman2-3/+9
Bug fix: included MAC drops in rx_dropped netstat. Also track Rx trunctations stat at the MAC Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03enic: bug fix: protect fw call i/f with spinlockScott Feldman1-0/+12
Some driver -> nic firmware calls weren't guarded with a spinlock, exposing the call i/f to a race between two threads Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03enic: use netdev_alloc_skbScott Feldman1-4/+6
Use netdev_alloc_skb rather than dev_alloc_skb Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03enic: bug fix: split TSO fragments larger than 16K into multiple descsScott Feldman1-18/+69
enic WQ desc supports a maximum 16K buf size, so split any send fragments larger than 16K into several descs. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03enic: workaround A0 erratumScott Feldman4-4/+80
A0 revision ASIC has an erratum on the RQ desc cache on chip where the cache can become corrupted causing pkt buf writes to wrong locations. The s/w workaround is to post a dummy RQ desc in the ring every 32 descs, causing a flush of the cache. A0 parts are not production, but there are enough of these parts in the wild in test setups to warrant including workaround. A1 revision ASIC parts fix erratum. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03enic: add support for multiple BARsScott Feldman4-36/+66
Nic firmware can place resources (queues, intrs, etc) on multiple BARs, so allow driver to discover/map resources beyond BAR0. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02netdev: drivers should make ethtool_ops constStephen Hemminger1-1/+1
No need to put ethtool_ops in data, they should be const. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-01netdev: convert bulk of drivers to netdev_tx_tStephen Hemminger1-1/+2
In a couple of cases collapse some extra code like: int retval = NETDEV_TX_OK; ... return retval; into return NETDEV_TX_OK; Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-29net: dont update dev->trans_start in 10GB driversEric Dumazet1-2/+0
Followup of commits 9d21493b4beb8f918ba248032fefa393074a5e2b and 08baf561083bc27a953aa087dd8a664bb2b88e8e (net: tx scalability works : trans_start) (net: txq_trans_update() helper) Now that core network takes care of trans_start updates, dont do it in drivers themselves, if possible. Multi queue drivers can avoid one cache miss (on dev->trans_start) in their start_xmit() handler. Exceptions are NETIF_F_LLTX drivers (vxge & tehuti) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-07dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)Yang Hongyang1-2/+2
Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07dma-mapping: replace all DMA_40BIT_MASK macro with DMA_BIT_MASK(40)Yang Hongyang1-2/+2
Replace all DMA_40BIT_MASK macro with DMA_BIT_MASK(40) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-09enic: Add api for link down count and to get firmware notification status.Scott Feldman4-7/+38
Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-09enic: bug fix: tx_timeout reset path fix-upsScott Feldman1-16/+23
tx_timeout reset path needs to re-init dev and re-apply nic cfg to enable vlan stripping. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-09enic: record all bad FCS errs as frame errorsScott Feldman2-7/+4
Report all bad FCS errs as frames errs. This includes frames with bad FCS on wire detected by MAC and frames which may be truncated due to ingress FIFO overruns. No longer print a driver msg on bad FCS err. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-09enic: bug fix: return notify intr creditsScott Feldman3-7/+26
Return notify intr credits after notify intr from firmware. This is especially important for legacy PCI intr mode, where not returning credits would cause PBA to remain asserted which would get us right back into the ISR. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-01net: replace uses of __constant_{endian}Harvey Harrison1-2/+2
Base versions handle constant folding now. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21net: Remove redundant NAPI functionsBen Hutchings1-6/+6
Following the removal of the unused struct net_device * parameter from the NAPI functions named *netif_rx_* in commit 908a7a1, they are exactly equivalent to the corresponding *napi_* functions and are therefore redundant. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-11netdev: add missing set_mac_address hookStephen Hemminger1-0/+1
Many drivers lost the ability to set ethernet address accidently during the net_device_ops conversion. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-26drivers/net/enic: fix sparse warning: make symbol staticHannes Eder1-1/+1
Fix this sparse warning: drivers/net/enic/vnic_dev.c:288:5: warning: symbol 'vnic_dev_capable' was not declared. Should it be static? Signed-off-by: Hannes Eder <hannes@hanneseder.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-22net: Remove unused netdev arg from some NAPI interfaces.Neil Horman1-6/+6
When the napi api was changed to separate its 1:1 binding to the net_device struct, the netif_rx_[prep|schedule|complete] api failed to remove the now vestigual net_device structure parameter. This patch cleans up that api by properly removing it.. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-21enic: misc cleanup items:Scott Feldman3-2/+15
Clarrify reading PBA has no side-effect (clearing). Add missing GPL license text. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-21enic: move wmb closer to where needed: before writing posted_index to hwScott Feldman3-6/+16
Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-21enic: mask off some reserved bits in CQ descriptor for future useScott Feldman1-2/+3
Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-21enic: driver/firmware API updatesScott Feldman2-19/+60
Add driver/firmware compatibility check. Update firmware notify cmd to honor notify area size. Add new version of init cmd. Add link_down_cnt to notify area to track link down count. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-21enic: enable ethtool LRO supportScott Feldman2-20/+24
Enable ethtool support for get/set_flags so LRO can be turned on/off by fwding drivers such as the bridge driver. LRO is not compatible with fwding drivers. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-20netdev: add more functions to netdevice opsStephen Hemminger1-1/+1
This patch moves neigh_setup and hard_start_xmit into the network device ops structure. For bisection, fix all the previously converted drivers as well. Bonding driver took the biggest hit on this. Added a prefetch of the hard_start_xmit in the fast path to try and reduce any impact this would have. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-19enic: convert to net_device_opsStephen Hemminger1-12/+17
Convert this driver to network device ops. Compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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