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* e1000e: flush all writebacks before unloadJesse Brandeburg2011-02-171-10/+21
| | | | | | | | | | | | | | | The driver was not flushing all writebacks before unloading, possibly causing memory to be written by the hardware after the driver had reinitialized the rings. This adds missing functionality to flush any pending writebacks and is called in all spots where descriptors should be completed before the driver begins processing. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* e1000e: check down flag in tasksJesse Brandeburg2011-02-171-0/+21
| | | | | | | | | This change is part of a fix to avoid any tasks running while the driver is exiting and deinitializing resources. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* e1000e: tx_timeout should not increment for non-hang eventsJesse Brandeburg2011-02-081-1/+0
| | | | | | | | | | | | | | Currently the driver increments the tx_timeout counter (an error counter) when simply resetting the part with outstanding transmit work pending. This is an unnecessary count of an error, when all we should be doing is just resetting the part and discarding the transmits. With this change the only increment of tx_timeout is when the stack calls the watchdog reset function due to a true Tx timeout. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2011-01-1412-135/+138
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (47 commits) GRETH: resolve SMP issues and other problems GRETH: handle frame error interrupts GRETH: avoid writing bad speed/duplex when setting transfer mode GRETH: fixed skb buffer memory leak on frame errors GRETH: GBit transmit descriptor handling optimization GRETH: fix opening/closing GRETH: added raw AMBA vendor/device number to match against. cassini: Fix build bustage on x86. e1000e: consistent use of Rx/Tx vs. RX/TX/rx/tx in comments/logs e1000e: update Copyright for 2011 e1000: Avoid unhandled IRQ r8169: keep firmware in memory. netdev: tilepro: Use is_unicast_ether_addr helper etherdevice.h: Add is_unicast_ether_addr function ks8695net: Use default implementation of ethtool_ops::get_link ks8695net: Disable non-working ethtool operations USB CDC NCM: Don't deref NULL in cdc_ncm_rx_fixup() and don't use uninitialized variable. vxge: Remember to release firmware after upgrading firmware netdev: bfin_mac: Remove is_multicast_ether_addr use in netdev_for_each_mc_addr ipsec: update MAX_AH_AUTH_LEN to support sha512 ...
| * e1000e: consistent use of Rx/Tx vs. RX/TX/rx/tx in comments/logsBruce Allan2011-01-146-123/+126
| | | | | | | | | | | | | | | | | | Some minor comment errors and whitespace issues discovered while looking into this are also addressed. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * e1000e: update Copyright for 2011Bruce Allan2011-01-1412-13/+13
| | | | | | | | | | | | Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | Merge branch 'for-next' of ↵Linus Torvalds2011-01-133-3/+3
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits) Documentation/trace/events.txt: Remove obsolete sched_signal_send. writeback: fix global_dirty_limits comment runtime -> real-time ppc: fix comment typo singal -> signal drivers: fix comment typo diable -> disable. m68k: fix comment typo diable -> disable. wireless: comment typo fix diable -> disable. media: comment typo fix diable -> disable. remove doc for obsolete dynamic-printk kernel-parameter remove extraneous 'is' from Documentation/iostats.txt Fix spelling milisec -> ms in snd_ps3 module parameter description Fix spelling mistakes in comments Revert conflicting V4L changes i7core_edac: fix typos in comments mm/rmap.c: fix comment sound, ca0106: Fix assignment to 'channel'. hrtimer: fix a typo in comment init/Kconfig: fix typo anon_inodes: fix wrong function name in comment fix comment typos concerning "consistent" poll: fix a typo in comment ... Fix up trivial conflicts in: - drivers/net/wireless/iwlwifi/iwl-core.c (moved to iwl-legacy.c) - fs/ext4/ext4.h Also fix missed 'diabled' typo in drivers/net/bnx2x/bnx2x.h while at it.
| * tree-wide: fix comment/printk typosUwe Kleine-König2010-11-013-3/+3
| | | | | | | | | | | | | | | | | | | | "gadget", "through", "command", "maintain", "maintain", "controller", "address", "between", "initiali[zs]e", "instead", "function", "select", "already", "equal", "access", "management", "hierarchy", "registration", "interest", "relative", "memory", "offset", "already", Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | e1000e: add custom set_d[0|3]_lplu_state function pointer for 82574Bruce Allan2011-01-092-0/+57
| | | | | | | | | | | | | | | | | | | | 82574 needs to configure Low Power Link Up (or LPLU) differently than the other parts in the 8257x family supported by the driver. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | e1000e: power off PHY after reset when interface is downBruce Allan2011-01-093-35/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some Phys supported by the driver do not remain powered off across a reset of the device when the interface is down, e.g. on 82571, but not on 82574. This patch powers down (only when WoL is disabled) the PHY after a reset if the interface is down and the ethtool diagnostics are not currently running. The ethtool diagnostic function required a minor re-factor as a result, and the e1000_[get|put]_hw_control() functions are renamed since they are no longer static to netdev.c as they are needed by the ethtool diagnostics. A couple minor whitespace issues were cleaned up, too. Reported-by: Arthur Jones <ajones@riverbed.com> Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | e1000e: use either_crc_le() rather than re-write itBruce Allan2011-01-092-18/+2
| | | | | | | | | | | | | | | | | | | | For the 82579 jumbo frame workaround, there is no need to re-write the CRC calculation functionality already found in the kernel's ether_crc_le(). Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | e1000e: properly bounds-check string functionsBruce Allan2011-01-092-7/+11
| | | | | | | | | | | | | | | | | | | | Use string functions with bounds checking rather than their non-bounds checking counterparts, and do not hard code these boundaries. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | e1000e: convert calls of ops.[read|write]_reg to e1e_[r|w]phyBruce Allan2011-01-093-53/+44
| | | | | | | | | | | | | | | | | | | | | | Cleans up the code a bit by using the driver-specific e1e_rphy and e1e_wphy macros instead of the full function pointer variants. Fix a couple whitespace issue with two already existing calls to e1e_wphy. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | e1000e: cleanup variables set but not usedBruce Allan2011-01-094-11/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | The ICR register is clear on read and we don't care what the returned value is when resetting the hardware so the icr variable(s) can be removed. We should not ignore the return from e1000_lv_jumbo_workaround_ich8lan() and from e1000_get_phy_id_82571() (dump a debug message when it fails and when an unknown Phy id is returned). Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | e1000e: checkpatch warnings - bracesBruce Allan2010-12-244-21/+12
| | | | | | | | | | | | | | | | | | WARNING: braces {} are not necessary for any arm of this statement WARNING: braces {} are not necessary for single statement blocks Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: checkpatch error - open bracesBruce Allan2010-12-243-15/+15
| | | | | | | | | | | | | | | | ERROR: that open brace { should be on the previous line Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: checkpatch error - trailing statementsBruce Allan2010-12-241-2/+2
| | | | | | | | | | | | | | | | ERROR: trailing statements should be on next line Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: checkpatch error - macro panethesisBruce Allan2010-12-242-56/+60
| | | | | | | | | | | | | | | | ERROR: Macros with complex values should be enclosed in parenthesis Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | net: Fix drivers advertising HW_CSUM feature to use csum_startMichał Mirosław2010-12-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Some drivers are using skb_transport_offset(skb) instead of skb->csum_start for NETIF_F_HW_CSUM offload. This does not matter now, but if someone implements checksumming of encapsulated packets then this will break silently. TSO output paths are left as they are, since they are for IP+TCP only (might be worth converting though). Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
* | drivers/net: don't use flush_scheduled_work()Tejun Heo2010-12-121-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | flush_scheduled_work() is on its way out. This patch contains simple conversions to replace flush_scheduled_work() usage with direct cancels and flushes. Directly cancel the used works on driver detach and flush them in other cases. The conversions are mostly straight forward and the only dangers are, * Forgetting to cancel/flush one or more used works. * Cancelling when a work should be flushed (ie. the work must be executed once scheduled whether the driver is detaching or not). I've gone over the changes multiple times but it would be much appreciated if you can review with the above points in mind. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jay Cliburn <jcliburn@gmail.com> Cc: Michael Chan <mchan@broadcom.com> Cc: Divy Le Ray <divy@chelsio.com> Cc: e1000-devel@lists.sourceforge.net Cc: Vasanthy Kolluri <vkolluri@cisco.com> Cc: Samuel Ortiz <samuel@sortiz.org> Cc: Lennert Buytenhek <buytenh@wantstofly.org> Cc: Andrew Gallatin <gallatin@myri.com> Cc: Francois Romieu <romieu@fr.zoreil.com> Cc: Ramkrishna Vepa <ramkrishna.vepa@exar.com> Cc: Matt Carlson <mcarlson@broadcom.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Shreyas Bhatewara <sbhatewara@vmware.com> Cc: netdev@vger.kernel.org
* | e1000e: increment the driver versionBruce Allan2010-12-101-1/+1
| | | | | | | | | | | | Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: static analysis tools complain of a possible null ptr p dereferenceBruce Allan2010-12-101-0/+3
| | | | | | | | | | | | | | | | | | | | Adding this default case resolves the issue. v2- Removed "break" in default case based on feedback Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: minor error message correctionsBruce Allan2010-12-102-2/+2
| | | | | | | | | | | | | | | | | | Correct error messages when setting up Rx resources and when checking module parameters. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: prevent null ptr dereference in e1000_tx_queue()Bruce Allan2010-12-101-2/+2
| | | | | | | | | | | | | | | | | | tx_desc can be dereferenced as a null pointer when count is passed in as 0. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: support new PBA format from EEPROMBruce Allan2010-12-104-28/+130
| | | | | | | | | | | | | | | | | | | | Provide support to e1000e for displaying the new format of the PBA found in the EEPROM. The unique PBA identifier is no longer restricted to hexadecimal numbers and must now be read and displayed as a string. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: 82579 PHY incorrectly identified during initBruce Allan2010-12-102-5/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During init, reading the 2 PHY ID registers back-to-back in the default fast mode could return invalid data (all F's) and in slow mode could return data to the second read the data from the first read. To resolve the issue in fast mode, set to slow mode before any PHY accesses; to resolve the issue in slow mode, put in a delay for every 82579 PHY access. Since this PHY is currently only paired with the pch2lan MAC and the PHY type is not known before the first PHY access which can fail this way, check for this based on MAC-type. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: 82577/8/9 mis-configured OEM bits during S0->SxBruce Allan2010-12-101-1/+1
| | | | | | | | | | | | | | | | | | The LPLU (Low Power Link Up) and Gigabit Disable bits (a.k.a. OEM bits) were being configured incorrectly when device goes to D3 state. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: 82571 Serdes can fail to get linkBruce Allan2010-12-101-8/+27
| | | | | | | | | | | | | | | | | | | | | | When link partner is sending continuous Config symbols, the 82571 Serdes FIFO can overflow resulting in Invalid bit getting set. To resolve this, if Sync and Config bits are both 1 ignore the Invalid bit and restart auto-negotiation. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: 82577/8 must acquire h/w semaphore before workaroundBruce Allan2010-12-101-0/+7
| | | | | | | | | | | | | | | | | | | | The workaround function e1000_configure_k1_pchlan() assumes the h/w semaphore is already acquired. This was originally missed when setting up the part for the ethtool loopback test. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: 82574/82583 performance improvementBruce Allan2010-12-101-2/+2
| | | | | | | | | | | | | | | | | | Increasing the transmit fifo by 4K (by decreasing the receive fifo size specified in .pba by the same amount) increases Tx performance. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: 82571-based mezzanine card can fail ethtool link testBruce Allan2010-12-101-1/+6
| | | | | | | | | | | | | | | | | | On certain 82571-based mezzanine NICs in some blade servers, the ethtool link test can fail due to the serdes_has_link flag not set correctly. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: fix double initialization in blink pathHolger Eitzenberger2010-12-103-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kernel goes BUG() at the time 'ethtool -p eth0 3' comes back, which is due to adapter->led_blink_task initialized several times. At the time it is still running this results in a corrupted task_list of the associated workqueue. The fix is to move the workqueue initialization to the probe function instead. Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | Intel Wired LAN drivers: Use static constJeff Kirsher2010-12-101-5/+6
| | | | | | | | | | | | | | | | | | | | Based on work by Joe Perches <joe@perches.com> Using static const to decrease data and overall object size. CC: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com>
* | netdev: Use default implementation of ethtool_ops::get_link where possibleBen Hutchings2010-12-101-15/+1
| | | | | | | | | | | | | | | | | | Various drivers are using implementations of ethtool_ops::get_link that are equivalent to the default ethtool_op_get_link(). Change them to use that instead. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | drivers/net: use vzalloc()Eric Dumazet2010-11-271-4/+2
| | | | | | | | | | | | | | | | Use vzalloc() and vzalloc_node() in net drivers Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Jon Mason <jon.mason@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | e1000e: add netpoll support for MSI/MSI-X IRQ modesDongdong Deng2010-11-161-4/+45
| | | | | | | | | | | | | | | | | | | | | | With enabling CONFIG_PCI_MSI, e1000e could work in MSI/MSI-X IRQ mode, and netpoll controller didn't deal with those IRQ modes on e1000e. This patch add the handling MSI/MSI-X IRQ modes to netpoll controller, so that netconsole could work with those IRQ modes. Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: 82574 intermittently fails to initialize with manageability f/wBruce Allan2010-11-161-19/+120
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver can fail initializing the hardware when manageability firmware is performing concurrent MDIO operations because the hardware semaphore scheme to prevent concurrent operations between software and firmware is incorrect for 82574/82583. Instead of using the SWSM register, the driver should be using the EXTCNF_CTRL register. A software mutex is also added to prevent simultaneous software threads from performing similar concurrent accesses. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | e1000e: 82571 SerDes link handle null code word from partnerBruce Allan2010-11-162-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | SerDes Link detection on certain 82571 mezzanine cards can fail when the link is forced, the link partner does not recognize forced link and the link partner sends null code words. Detect the null code words and return to auto-negotiation state which causes the link partner to begin responding with valid code words. Within a reasonable interval the link will finally settle as forced by both partners. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | drivers/net/e1000e: Remove unnecessary semicolonsJoe Perches2010-11-151-1/+1
|/ | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* e1000e: Add check for reset flags before displaying reset messageCarolyn Wyborny2010-10-281-2/+5
| | | | | | | | | | | | | Some parts need to execute resets during normal operation. This flag check ensures that those parts reset without needlessly alarming the user. Other unexpected resets by other parts will dump debug info and message the reset action to the user, as originally intended. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Acked-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* e1000e: reset PHY after errors detectedCarolyn Wyborny2010-10-283-0/+63
| | | | | | | | | | | | | | Some errors can be induced in the PHY via environmental testing (specifically extreme temperature changes and electro static discharge testing), and in the case of the PHY hanging due to this input, this detects the problem and resets to continue. This issue only applies to 82574 silicon. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* vlan: Don't check for vlan group before vlan_tx_tag_present.Jesse Gross2010-10-211-1/+1
| | | | | | | | | | | | | Many (but not all) drivers check to see whether there is a vlan group configured before using a tag stored in the skb. There's not much point in this check since it just throws away data that should only be present in the expected circumstances. However, it will soon be legal and expected to get a vlan tag when no vlan group is configured, so remove this check from all drivers to avoid dropping the tags. Signed-off-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* vlan: Rename VLAN_GROUP_ARRAY_LEN to VLAN_N_VID.Jesse Gross2010-10-211-1/+1
| | | | | | | | | | VLAN_GROUP_ARRAY_LEN is simply the number of possible vlan VIDs. Since vlan groups will soon be more of an implementation detail for vlan devices, rename the constant to be descriptive of its actual purpose. Signed-off-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* e1000e: Fix for offline diag test failure at first callCarolyn Wyborny2010-10-181-11/+8
| | | | | | | | | | | | Move link test call to later in the offline sequence, move the restore settings block to afterwards and add another reset to ensure the hardware is in a known state afterwards. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Acked-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* e1000e: 82579 performance improvementsBruce Allan2010-09-303-7/+46
| | | | | | | | | | | | The initial support for 82579 was tuned poorly for performance. Adjust the packet buffer allocation appropriately for both standard and jumbo frames; and for jumbo frames increase the receive descriptor pre-fetch, disable adaptive interrupt moderation and set the DMA latency tolerance. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* e1000e: use hardware writeback batchingJesse Brandeburg2010-09-306-4/+88
| | | | | | | | | | | | | | | | | | | Most e1000e parts support batching writebacks. The problem with this is that when some of the TADV or TIDV timers are not set, Tx can sit forever. This is solved in this patch with write flushes using the Flush Partial Descriptors (FPD) bit in TIDV and RDTR. This improves bus utilization and removes partial writes on e1000e, particularly from 82571 parts in S5500 chipset based machines. Only ES2LAN and 82571/2 parts are included in this optimization, to reduce testing load. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2010-09-273-43/+184
|\ | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/qlcnic/qlcnic_init.c net/ipv4/ip_output.c
| * e1000e: 82579 do not gate auto config of PHY by hardware during nominal useBruce Allan2010-09-221-9/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For non-managed versions of 82579, set the bit that prevents the hardware from automatically configuring the PHY after resets only when the driver performs a reset, clear the bit after resets. This is so the hardware can configure the PHY automatically when the part is reset in a manner that is not controlled by the driver (e.g. in a virtual environment via PCI FLR) otherwise the PHY will be mis-configured causing issues such as failing to link at 1000Mbps. For managed versions of 82579, keep the previous behavior since the manageability firmware will handle the PHY configuration. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * e1000e: 82579 jumbo frame workaround causing CRC errorsBruce Allan2010-09-222-21/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The subject workaround was causing CRC errors due to writing the wrong register with updates of the RCTL register. It was also found that the workaround function which modifies the RCTL register was being called in the middle of a read-modify-write operation of the RCTL register, so the function call has been moved appropriately. Lastly, jumbo frames must not be allowed when CRC stripping is disabled by a module parameter because the workaround requires the CRC be stripped. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * e1000e: 82579 unaccounted missed packetsBruce Allan2010-09-222-0/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | On 82579, there is a hardware bug that can cause received packets to not get transferred from the PHY to the MAC due to K1 (a power saving feature of the PHY-MAC interconnect similar to ASPM L1). Since the MAC controls the accounting of missed packets, these will go unnoticed. Workaround the issue by setting the K1 beacon duration according to the link speed. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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