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path: root/drivers/net/niu.c
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* niu: BUG on inability to find page in rx page hashes.David S. Miller2010-07-071-1/+3
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* ethtool: Change ethtool_op_set_flags to validate flagsBen Hutchings2010-06-301-8/+1
| | | | | | | | | | | | | | | | | | ethtool_op_set_flags() does not check for unsupported flags, and has no way of doing so. This means it is not suitable for use as a default implementation of ethtool_ops::set_flags. Add a 'supported' parameter specifying the flags that the driver and hardware support, validate the requested flags against this, and change all current callers to pass this parameter. Change some other trivial implementations of ethtool_ops::set_flags to call ethtool_op_set_flags(). Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Reviewed-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge remote branch 'origin' into secretlab/next-devicetreeGrant Likely2010-05-221-15/+42
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merging in current state of Linus' tree to deal with merge conflicts and build failures in vio.c after merge. Conflicts: drivers/i2c/busses/i2c-cpm.c drivers/i2c/busses/i2c-mpc.c drivers/net/gianfar.c Also fixed up one line in arch/powerpc/kernel/vio.c to use the correct node pointer. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| * niu: Add skb->rxhash support.David S. Miller2010-04-221-12/+40
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * niu: Enable GRO by default.David S. Miller2010-04-201-1/+1
| | | | | | | | | | | | | | This was merely an oversight when I added the napi_gro_receive() calls. Signed-off-by: David S. Miller <davem@davemloft.net>
| * Merge branch 'master' of ↵David S. Miller2010-04-111-0/+1
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 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
| * | net: convert multicast list to list_headJiri Pirko2010-04-031-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | | of: Remove duplicate fields from of_platform_driverGrant Likely2010-05-221-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | .name, .match_table and .owner are duplicated in both of_platform_driver and device_driver. This patch is a removes the extra copies from struct of_platform_driver and converts all users to the device_driver members. This patch is a pretty mechanical change. The usage model doesn't change and if any drivers have been missed, or if anything has been fixed up incorrectly, then it will fail with a compile time error, and the fixup will be trivial. This patch looks big and scary because it touches so many files, but it should be pretty safe. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Sean MacLennan <smaclennan@pikatech.com>
* | | of: Always use 'struct device.of_node' to get device node pointer.Grant Likely2010-05-181-5/+5
| |/ |/| | | | | | | | | | | | | | | | | | | | | The following structure elements duplicate the information in 'struct device.of_node' and so are being eliminated. This patch makes all readers of these elements use device.of_node instead. (struct of_device *)->node (struct dev_archdata *)->prom_node (sparc) (struct dev_archdata *)->of_node (powerpc & microblaze) Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* | include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h 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>
* net: convert multiple drivers to use netdev_for_each_mc_addr, part5 V2Jiri Pirko2010-02-261-1/+1
| | | | | | | | removed some needless checks and also corrected bug in lp486e (dmi was passed instead of dmi->dmi_addr) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* niu: Refinements to kernel logging.David S. Miller2010-02-151-25/+1
| | | | | | | | | Fix unconditional empty kerne log message every interrupt. Kill some informational log messages that are superfluous and anyways occur before the netdev is registered. Signed-off-by: David S. Miller <davem@davemloft.net>
* niu: Use pr_<level>, netdev_<level> and netif_<level> macrosJoe Perches2010-02-141-392/+311
| | | | | | | | | | | | | | | | | Remove #define PFX Add pr_fmt(fmt) KBUILD_MODNAME ": " fmt Convert printks to pr_<level> Convert printks without levels to pr_cont Convert pr_<level> with np->dev to netdev_<level> Convert dev_<level> to netdev_<level> Convert niudbg to netif_printk Convert niuinfo, niuwarn macros to netif_<level>(priv, type, dev... Coalesce long formats Convert embedded function names to "%s", __func__ Always use "%s()..." when __func__ is printed Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: use netdev_mc_count and netdev_mc_empty when appropriateJiri Pirko2010-02-121-2/+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>
* net: use helpers to access uc list V2Jiri Pirko2010-01-251-2/+2
| | | | | | | This patch introduces three macros to work with uc list from net drivers. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2010-01-101-1/+1
|\ | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/benet/be_cmds.h include/linux/sysctl.h
| * niu: timeout ignored in tcam_wait_bit()roel kluin2010-01-031-1/+1
| | | | | | | | | | | | | | | | With `while (--limit > 0)' i reaches 0 after the loop, so upon timeout the error was not returned. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | drivers/net/: use DEFINE_PCI_DEVICE_TABLE()Alexey Dobriyan2010-01-071-1/+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>
* niu.c: Use correct length in strncmpJoe Perches2009-11-131-1/+1
| | | | | | | Untested, no hardware Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* niu: Use DMA_BIT_MASK(44) instead of deprecated DMA_44BIT_MASKMarin Mitov2009-11-101-5/+1
| | | | | | | Use DMA_BIT_MASK(44) instead of deprecated DMA_44BIT_MASK Signed-off-by: Marin Mitov <mitov@issp.bas.bg> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2009-10-271-1/+1
|\ | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/sh_eth.c
| * niu: VLAN_ETH_HLEN should be used to make sure that the whole MAC header was ↵Joyce Yu2009-10-211-1/+1
| | | | | | | | | | | | | | copied to the head buffer in the Vlan packets case Signed-off-by: Joyce Yu <joyce.yu@sun.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: Convert ethtool {get_stats, self_test}_count() ops to get_sset_count()Ben Hutchings2009-10-051-2/+5
|/ | | | | | | | | | | | | These string query operations were supposed to be replaced by the generic get_sset_count() starting in 2007. Convert the remaining implementations. Also remove calls to these operations to initialise drvinfo->n_stats. The ethtool core code already does that. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* BUILD_BUG_ON(): fix it and a couple of bogus uses of itJan Beulich2009-09-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | gcc permitting variable length arrays makes the current construct used for BUILD_BUG_ON() useless, as that doesn't produce any diagnostic if the controlling expression isn't really constant. Instead, this patch makes it so that a bit field gets used here. Consequently, those uses where the condition isn't really constant now also need fixing. Note that in the gfp.h, kmemcheck.h, and virtio_config.h cases MAYBE_BUILD_BUG_ON() really just serves documentation purposes - even if the expression is compile time constant (__builtin_constant_p() yields true), the array is still deemed of variable length by gcc, and hence the whole expression doesn't have the intended effect. [akpm@linux-foundation.org: make arch/sparc/include/asm/vio.h compile] [akpm@linux-foundation.org: more nonsensical assertions in tpm.c..] Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Cc: Mimi Zohar <zohar@us.ibm.com> Cc: James Morris <jmorris@namei.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* niu: Use resource_size instead of private functionTobias Klauser2009-09-091-14/+9
| | | | | | | | The function res_size in drivers/net/niu.c is a copy of resource_size in linux/ioport.h. Remove the function and use resource_size instead. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* netdev: convert bulk of drivers to netdev_tx_tStephen Hemminger2009-09-011-1/+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>
* drivres/net: Change constant nameJulia Lawall2009-08-121-1/+1
| | | | | | | | | In this series of tests the constants have the form XRXMAC_STATUS, except in this one case. The values of XRXMAC_STAT_MSK_RXOCTET_CNT_EXP and XRXMAC_STATUS_RXOCTET_CNT_EXP are furthermore the same. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: group address list and its countJiri Pirko2009-06-181-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | This patch is inspired by patch recently posted by Johannes Berg. Basically what my patch does is to group list and a count of addresses into newly introduced structure netdev_hw_addr_list. This brings us two benefits: 1) struct net_device becames a bit nicer. 2) in the future there will be a possibility to operate with lists independently on netdevices (with exporting right functions). I wanted to introduce this patch before I'll post a multicast lists conversion. Signed-off-by: Jiri Pirko <jpirko@redhat.com> drivers/net/bnx2.c | 4 +- drivers/net/e1000/e1000_main.c | 4 +- drivers/net/ixgbe/ixgbe_main.c | 6 +- drivers/net/mv643xx_eth.c | 2 +- drivers/net/niu.c | 4 +- drivers/net/virtio_net.c | 10 ++-- drivers/s390/net/qeth_l2_main.c | 2 +- include/linux/netdevice.h | 17 +++-- net/core/dev.c | 130 ++++++++++++++++++-------------------- 9 files changed, 89 insertions(+), 90 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
* net: convert unicast addr listJiri Pirko2009-05-291-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch converts unicast address list to standard list_head using previously introduced struct netdev_hw_addr. It also relaxes the locking. Original spinlock (still used for multicast addresses) is not needed and is no longer used for a protection of this list. All reading and writing takes place under rtnl (with no changes). I also removed a possibility to specify the length of the address while adding or deleting unicast address. It's always dev->addr_len. The convertion touched especially e1000 and ixgbe codes when the change is not so trivial. Signed-off-by: Jiri Pirko <jpirko@redhat.com> drivers/net/bnx2.c | 13 +-- drivers/net/e1000/e1000_main.c | 24 +++-- drivers/net/ixgbe/ixgbe_common.c | 14 ++-- drivers/net/ixgbe/ixgbe_common.h | 4 +- drivers/net/ixgbe/ixgbe_main.c | 6 +- drivers/net/ixgbe/ixgbe_type.h | 4 +- drivers/net/macvlan.c | 11 +- drivers/net/mv643xx_eth.c | 11 +- drivers/net/niu.c | 7 +- drivers/net/virtio_net.c | 7 +- drivers/s390/net/qeth_l2_main.c | 6 +- drivers/scsi/fcoe/fcoe.c | 16 ++-- include/linux/netdevice.h | 18 ++-- net/8021q/vlan.c | 4 +- net/8021q/vlan_dev.c | 10 +- net/core/dev.c | 195 +++++++++++++++++++++++++++----------- net/dsa/slave.c | 10 +- net/packet/af_packet.c | 4 +- 18 files changed, 227 insertions(+), 137 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dont update dev->trans_startEric Dumazet2009-05-291-2/+0
| | | | | | | | | | | | | Second round of drivers for Gb cards (and NIU one I forgot in the 10GB round) Now that core network takes care of trans_start updates, dont do it in drivers themselves, if possible. Drivers can avoid one cache miss (on dev->trans_start) in their start_xmit() handler. Exceptions are NETIF_F_LLTX drivers Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* niu: Add support for C10NEMTanli Chang2009-05-261-10/+47
| | | | | | | | This patch is for supporting C10NEM. C10NEM is a switch module, which has back-to-back XAUI link connected to blades. Signed-off-by: Tanli Chang <tanli.chang@sun.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* niu: Fix unused variable warning.David S. Miller2009-04-081-0/+1
| | | | | | Don't strain gcc's tiny mind. Signed-off-by: David S. Miller <davem@davemloft.net>
* niu: Fix error handlingDan Carpenter2009-04-081-1/+1
| | | | | | | | | | platform_device_register_simple() returns ERR_PTR(), not NULL, if an error occurs. Found by smatch (http://repo.or.cz/w/smatch.git). Compile tested. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)Yang Hongyang2009-04-071-2/+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>
* niu: Add GRO support.David S. Miller2009-03-291-5/+7
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* niu: Add TCAM classification configurationSantwona Behera2009-02-201-24/+675
| | | | | Signed-off-by: Santwona Behera <santwona.behera@sun.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* niu: improve ethtool support for gigabit copper cardsConstantin Baranov2009-02-181-107/+238
| | | | | | | | | | | | | | | | | | | Introduced support for link speed and duplex setting (ethtool -s), link advertising parameters and autonegotiation (ethtool -r): - struct niu_link_config: split advertising and autoneg fields into active and target values (similar to speed and duplex fields) - mii_init_common(): rewrite function to actually apply requested niu_link_config parameters instead of providing default initialization - link_status_1g(): move parsing of MII registers into new link_status_mii() function (link_status_1g_rgmii() could possibly use this new implementation too) - introduce simple nway_reset method - fix incorrect XMAC_CONFIG_MODE selection for 10Mbps case Signed-off-by: Constantin Baranov <baranov@mercdev.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* niu: fix PHY template choice for 10G copperConstantin Baranov2009-02-181-1/+1
| | | | | | | | Fixed a typo in niu_determine_phy_disposition() which resulted in phy_template_1g_copper being selected for 10G/copper configuration. Signed-off-by: Constantin Baranov <baranov@mercdev.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers/net/niu.c: fix sparse warning: symbol shadows an earlier oneHannes Eder2009-02-171-1/+1
| | | | | | | | | | | Impact: Move variable declaration to a more inner scope. Fix this sparse warning: drivers/net/niu.c:2399:21: warning: symbol 'err' shadows an earlier one drivers/net/niu.c:2287:13: originally declared here Signed-off-by: Hannes Eder <hannes@hanneseder.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: replace uses of __constant_{endian}Harvey Harrison2009-02-011-2/+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>
* net: Add skb_record_rx_queue() calls to multiqueue capable drivers.David S. Miller2009-01-271-0/+1
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Remove redundant NAPI functionsBen Hutchings2009-01-211-3/+3
| | | | | | | | | | | 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>
* drivers/net: fix sparse warning: returning void-valued expressionHannes Eder2008-12-251-1/+1
| | | | | | | | | Fix this sparse warning: drivers/net/niu.c:8850:2: warning: returning void-valued expression Signed-off-by: Hannes Eder <hannes@hanneseder.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Remove unused netdev arg from some NAPI interfaces.Neil Horman2008-12-221-3/+3
| | | | | | | | | | 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>
* NIU: Implement discard counters, optimizeJesper Dangaard Brouer2008-12-181-1/+3
| | | | | | | | | | Optimize the lightly loaded case, by only synchronizing discards stats when qlen > 10 indicate potential for drops. Notice Robert Olsson might disagree with this patch. Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
* NIU: Implement discard counters, info/debug statements.Jesper Dangaard Brouer2008-12-181-0/+6
| | | | | | | | Discard packet counter debug statements that can be turned on at runtime by users to assist debugging of the driver code. Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
* NIU: Implement discard countersJesper Dangaard Brouer2008-12-181-0/+51
| | | | | | | | | | | | | | | | | | | | | | | Implementing discard counters for the NIU driver turned out to be more complicated than first assumed. The discard counters for the NIU neptune chip are only 16-bit (even though this is a 64-bit chip). These 16-bit counters can overflow quickly, especially considering this is a 10Gbit/s ethernet card. The overflow indication bit is, unfortunatly, not usable as the counter value does not wrap, but remains at max value 0xFFFF. Resulting in lost counts until the counter is reset. The read and reset scheme also poses a problem. Both in theory and in practice counters can be lost in between reading nr64() and clearing the counter nw64(). For this reason, the number of counter clearings nw64() is limited/reduced. On the fast-path the counters are only syncronized once it exceeds 0x7FFF. When read by userspace, its syncronized fully. Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
* niu: use net_device_stats nowadays available in net_deviceIlpo Järvinen2008-11-281-8/+8
| | | | | Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
* niu: fix another warning in drivers/net/niu.cIngo Molnar2008-11-251-1/+1
| | | | | | | | | | | | | | | | | this warning: drivers/net/niu.c: In function ‘esr_reset’: drivers/net/niu.c:741: warning: ‘reset’ may be used uninitialized in this function triggers because GCC does not recognize the (correct) error flow between: - esr_read_reset() and 'reset' Annotate it. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: David S. Miller <davem@davemloft.net>
* niu: fix warnings in drivers/net/niu.cIngo Molnar2008-11-251-2/+2
| | | | | | | | | | | | | | | | | these warnings: drivers/net/niu.c: In function ‘serdes_init_niu_1g_serdes’: drivers/net/niu.c:451: warning: ‘sig’ may be used uninitialized in this function drivers/net/niu.c: In function ‘serdes_init_niu_10g_serdes’: drivers/net/niu.c:550: warning: ‘sig’ may be used uninitialized in this function triggers because GCC does not recognize that the max_retry loop always initializes 'sig', due to max_retry != 0. Annotate them. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: David S. Miller <davem@davemloft.net>
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