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path: root/drivers/net/ethernet/broadcom/bnx2.c
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2013-08-29drivers:net: Convert dma_alloc_coherent(...__GFP_ZERO) to dma_zalloc_coherentJoe Perches
__GFP_ZERO is an uncommon flag and perhaps is better not used. static inline dma_zalloc_coherent exists so convert the uses of dma_alloc_coherent with __GFP_ZERO to the more common kernel style with zalloc. Remove memset from the static inline dma_zalloc_coherent and add just one use of __GFP_ZERO instead. Trivially reduces the size of the existing uses of dma_zalloc_coherent. Realign arguments as appropriate. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-09bnx2: clean up unnecessary MSI/MSI-X capability findYijing Wang
PCI core will initialize device MSI/MSI-X capability in pci_msi_init_pci_dev(). So device driver should use pci_dev->msi_cap/msix_cap to determine whether the device support MSI/MSI-X instead of using pci_find_capability(pci_dev, PCI_CAP_ID_MSI/MSIX). Access to PCIe device config space again will consume more time. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Cc: Michael Chan <mchan@broadcom.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-07bnx2: Update version to 2.2.4Michael Chan
and update copyright year. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-07bnx2: Add pci shutdown handler.Michael Chan
WoL and power state changes will now be done in the shutdown handler. open/close/ethtool will no longer change the power state. NVRAM operations can now be permitted whether the device is up or down. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-07bnx2: Use SIMPLE_DEV_PM_OPS.Michael Chan
This simplifies the suspend/resume code. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-07bnx2: Refactor WoL setup into a separate function.Michael Chan
Separate MAC and PHY WoL setup code into a separate function. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-07bnx2: Use kernel APIs for WoL and power state changes.Michael Chan
Simple API changes with no functional changes. Signed-off-by: Michael Chan <mchan@broadocm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-07bnx2: Handle error condition in ->slot_reset()Michael Chan
by closing the device if necessary. Otherwise, since NAPI state is already disabled, a subsequent close will hang the system. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19bnx2: use pdev->pm_cap instead of pci_find_capability(.., PCI_CAP_ID_PM)Yijing Wang
Pci core has been saved pm cap register offset by pdev->pm_cap in pci_pm_init() in init path. So we can use pdev->pm_cap instead of using pci_find_capability(pdev, PCI_CAP_ID_PM) for better performance and simplified code. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Cc: Michael Chan <mchan@broadcom.com> Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-22net/ethernet/broadcom/bnx2: Use module_pci_driver to register driverPeter Hüwe
Removing some boilerplate by using module_pci_driver instead of calling register and unregister in the otherwise empty init/exit functions. Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-19net: vlan: add protocol argument to packet tagging functionsPatrick McHardy
Add a protocol argument to the VLAN packet tagging functions. In case of HW tagging, we need that protocol available in the ndo_start_xmit functions, so it is stored in a new field in the skb. The new field fits into a hole (on 64 bit) and doesn't increase the sks's size. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-19net: vlan: rename NETIF_F_HW_VLAN_* feature flags to NETIF_F_HW_VLAN_CTAG_*Patrick McHardy
Rename the hardware VLAN acceleration features to include "CTAG" to indicate that they only support CTAGs. Follow up patches will introduce 802.1ad server provider tagging (STAGs) and require the distinction for hardware not supporting acclerating both. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-10bnx2: make cnic_probe staticstephen hemminger
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-17drivers:net: dma_alloc_coherent: use __GFP_ZERO instead of memset(, 0)Joe Perches
Reduce the number of calls required to alloc a zeroed block of memory. Trivially reduces overall object size. Other changes around these removals o Neaten call argument alignment o Remove an unnecessary OOM message after dma_alloc_coherent failure o Remove unnecessary gfp_t stack variable Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-08remove init of dev->perm_addr in driversJiri Pirko
perm_addr is initialized correctly in register_netdevice() so to init it in drivers is no longer needed. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-11bnx2: Fix accidental reversions.Michael Chan
Commit 4ce45e02469c382699f4c5f6df727aea9dd2e1ca "bnx2: Add BNX2 prefix to CHIP ID and name macros" accidentally reverted 2 commits to use pci_ioumap() and to make pci_error_handlers const. This fixes those mistakes. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-07cnic, bnx2x, bnx2: Simplify cnic probing.Michael Chan
Instead of using symbol_get(), cnic can now directly call the cnic_probe functions in struct bnx2x and struct bnx2. symbol_get() is not reliable as it fails when the module is still initializing. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-07bnx2: Add BNX2 prefix to CHIP ID and name macrosMichael Chan
for namespace consistency. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-07bnx2: Add BNX2 prefix to descriptor structures and macrosMichael Chan
for namespace consistency. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-07bnx2: Rename register read and write macrosMichael Chan
with BNX2_ prefix for namespace consistency. Currently, these macro names conflict with similar macros in bnx2x.h, preventing the cnic driver from including both bnx2.h and bnx2x.h. Including bnx2x.h in cnic.c will remove many redundant definitions and simplify the interface. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-03bnx2: remove __dev* attributesBill Pemberton
CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Michael Chan <mchan@broadcom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-01Merge tag 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds
Pull PCI changes from Bjorn Helgaas: "Host bridge hotplug - Protect acpi_pci_drivers and acpi_pci_roots (Taku Izumi) - Clear host bridge resource info to avoid issue when releasing (Yinghai Lu) - Notify acpi_pci_drivers when hot-plugging host bridges (Jiang Liu) - Use standard list ops for acpi_pci_drivers (Jiang Liu) Device hotplug - Use pci_get_domain_bus_and_slot() to close hotplug races (Jiang Liu) - Remove fakephp driver (Bjorn Helgaas) - Fix VGA ref count in hotplug remove path (Yinghai Lu) - Allow acpiphp to handle PCIe ports without native hotplug (Jiang Liu) - Implement resume regardless of pciehp_force param (Oliver Neukum) - Make pci_fixup_irqs() work after init (Thierry Reding) Miscellaneous - Add pci_pcie_type(dev) and remove pci_dev.pcie_type (Yijing Wang) - Factor out PCI Express Capability accessors (Jiang Liu) - Add pcibios_window_alignment() so powerpc EEH can use generic resource assignment (Gavin Shan) - Make pci_error_handlers const (Stephen Hemminger) - Cleanup drivers/pci/remove.c (Bjorn Helgaas) - Improve Vendor-Specific Extended Capability support (Bjorn Helgaas) - Use standard list ops for bus->devices (Bjorn Helgaas) - Avoid kmalloc in pci_get_subsys() and pci_get_class() (Feng Tang) - Reassign invalid bus number ranges (Intel DP43BF workaround) (Yinghai Lu)" * tag 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (102 commits) PCI: acpiphp: Handle PCIe ports without native hotplug capability PCI/ACPI: Use acpi_driver_data() rather than searching acpi_pci_roots PCI/ACPI: Protect acpi_pci_roots list with mutex PCI/ACPI: Use acpi_pci_root info rather than looking it up again PCI/ACPI: Pass acpi_pci_root to acpi_pci_drivers' add/remove interface PCI/ACPI: Protect acpi_pci_drivers list with mutex PCI/ACPI: Notify acpi_pci_drivers when hot-plugging PCI root bridges PCI/ACPI: Use normal list for struct acpi_pci_driver PCI/ACPI: Use DEVICE_ACPI_HANDLE rather than searching acpi_pci_roots PCI: Fix default vga ref_count ia64/PCI: Clear host bridge aperture struct resource x86/PCI: Clear host bridge aperture struct resource PCI: Stop all children first, before removing all children Revert "PCI: Use hotplug-safe pci_get_domain_bus_and_slot()" PCI: Provide a default pcibios_update_irq() PCI: Discard __init annotations for pci_fixup_irqs() and related functions PCI: Use correct type when freeing bus resource list PCI: Check P2P bridge for invalid secondary/subordinate range PCI: Convert "new_id"/"remove_id" into generic pci_bus driver attributes xen-pcifront: Use hotplug-safe pci_get_domain_bus_and_slot() ...
2012-09-27bnx2: Clean up remaining iounmapNeil Horman
commit c0357e975afdbbedab5c662d19bef865f02adc17 modified bnx2 to switch from using ioremap/iounmap to pci_iomap/pci_iounmap. They missed a spot in the error path of bnx2_init_one though. This patch just cleans that up. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: Michael Chan <mcan@broadcom.com> CC: "David S. Miller" <davem@davemloft.net> Acked-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07netdev: make pci_error_handlers constStephen Hemminger
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-07-16bnx2: Try to recover from PCI block resetMichael Chan
If the PCI block has reset, the memory enable bit will be reset and the device will not respond to MMIO access. bnx2_reset_task() currently will not recover when this happens. Add code to detect this condition and restore the PCI state. This scenario has been reported by some users. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: net/batman-adv/bridge_loop_avoidance.c net/batman-adv/bridge_loop_avoidance.h net/batman-adv/soft-interface.c net/mac80211/mlme.c With merge help from Antonio Quartulli (batman-adv) and Stephen Rothwell (drivers/net/usb/qmi_wwan.c). The net/mac80211/mlme.c conflict seemed easy enough, accounting for a conversion to some new tracing macros. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-10bnx2: Fix bug in bnx2_free_tx_skbs().Michael Chan
In rare cases, bnx2x_free_tx_skbs() can unmap the wrong DMA address when it gets to the last entry of the tx ring. We were not using the proper macro to skip the last entry when advancing the tx index. Reported-by: Zongyun Lai <zlai@vmware.com> Reviewed-by: Jeffrey Huang <huangjw@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-05bnx2: set maximal number of default RSS queuesYuval Mintz
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Cc: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27bnx2: Add missing netif_tx_disable() in bnx2_close()Michael Chan
to stop all tx queues. Update version to 2.2.3. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27bnx2: Add "fall through" commentsMichael Chan
to indicate that the mising break statements are intended. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-16bnx2: Update version 2.2.2Michael Chan
Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-16bnx2: Read PCI function number from internal registerMichael Chan
so that it will work on any hypervisor. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-16bnx2: Dump additional BC_STATE during firmware sync timeout.Michael Chan
Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-16bnx2: Dump all FTQ_CTL registers during tx_timeoutMichael Chan
to help debug tx timeouts reported in the field. Reviewed-by Benjamin Li <benli@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-06ethernet: Remove casts to same typeJoe Perches
Adding casts of objects to the same type is unnecessary and confusing for a human reader. For example, this cast: int y; int *p = (int *)&y; I used the coccinelle script below to find and remove these unnecessary casts. I manually removed the conversions this script produces of casts with __force, __iomem and __user. @@ type T; T *p; @@ - (T *)p + p A function in atl1e_main.c was passed a const pointer when it actually modified elements of the structure. Change the argument to a non-const pointer. A function in stmmac needed a __force to avoid a sparse warning. Added it. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30net: allow skb->head to be a page fragmentEric Dumazet
skb->head is currently allocated from kmalloc(). This is convenient but has the drawback the data cannot be converted to a page fragment if needed. We have three spots were it hurts : 1) GRO aggregation When a linear skb must be appended to another skb, GRO uses the frag_list fallback, very inefficient since we keep all struct sk_buff around. So drivers enabling GRO but delivering linear skbs to network stack aren't enabling full GRO power. 2) splice(socket -> pipe). We must copy the linear part to a page fragment. This kind of defeats splice() purpose (zero copy claim) 3) TCP coalescing. Recently introduced, this permits to group several contiguous segments into a single skb. This shortens queue lengths and save kernel memory, and greatly reduce probabilities of TCP collapses. This coalescing doesnt work on linear skbs (or we would need to copy data, this would be too slow) Given all these issues, the following patch introduces the possibility of having skb->head be a fragment in itself. We use a new skb flag, skb->head_frag to carry this information. build_skb() is changed to accept a frag_size argument. Drivers willing to provide a page fragment instead of kmalloc() data will set a non zero value, set to the fragment size. Then, on situations we need to convert the skb head to a frag in itself, we can check if skb->head_frag is set and avoid the copies or various fallbacks we have. This means drivers currently using frags could be updated to avoid the current skb->head allocation and reduce their memory footprint (aka skb truesize). (thats 512 or 1024 bytes saved per skb). This also makes bpf/netfilter faster since the 'first frag' will be part of skb linear part, no need to copy data. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Maciej Żenczykowski <maze@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Matt Carlson <mcarlson@broadcom.com> Cc: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-13broadcom: replace open-coded ARRAY_SIZE with macroJim Cromie
Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-07bnx2: stop using net_device.{base_addr, irq}.Francois Romieu
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Acked-by: Michael Chan <mchan@broadcom.com>
2012-02-23ethernet: unify return value of .ndo_set_mac_address if address is invalidDanny Kukawka
Unify return value of .ndo_set_mac_address if the given address isn't valid. Return -EADDRNOTAVAIL as eth_mac_addr() already does if is_valid_ether_addr() fails. Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-05bnx2: Add missing memory barrier in bnx2_start_xmit()Vlad Zolotarov
Sync DMA descriptor before hitting the TX mailbox for weak memory model CPUs. There has been discussions several years ago about this. Some believe that writel() should guarantee ordering. Others want explicit barriers if necessary. Today writel() does not have the ordering guarantee and many other drivers use explicit barriers. Signed-off-by: Vlad Zolotarov <vlad@scalemp.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-05bnx2: Add support for ethtool --show-channels|--set-channelsMichael Chan
Allow the user to override the default number of RSS/TSS rings. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-31drivers/net: Remove unnecessary k.alloc/v.alloc OOM messagesJoe Perches
alloc failures use dump_stack so emitting an additional out-of-memory message is an unnecessary duplication. Remove the allocation failure messages. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-19bnx2: Update driver to use new mips firmware.Michael Chan
bnx2-mips-06-6.2.3 and bnx2-mips-09-6.2.1.b New firmware fixes iSCSI problems with some LeftHand targets that don't set TTT=0xffffffff for Data-In according to spec. Firmware generates exception warnings for this condition and becomes very slow. This is fixed by suppressing these warnings when using default error mask. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-30bnx2: Support for byte queue limitsEric Dumazet
Changes to bnx2 to use byte queue limits. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-23net: treewide use of RCU_INIT_POINTEREric Dumazet
rcu_assign_pointer(ptr, NULL) can be safely replaced by RCU_INIT_POINTER(ptr, NULL) (old rcu_assign_pointer() macro was testing the NULL value and could omit the smp_wmb(), but this had to be removed because of compiler warnings) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-21net: Change mii to ethtool advertisement function namesMatt Carlson
This patch implements advice by Ben Hutchings to change the mii side of the function names to look more like the register whose values they convert. New LPA translation functions have been added as well. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-18bnx2: switch to build_skb() infrastructureEric Dumazet
This is very similar to bnx2x conversion, but bnx2 only requires 16bytes alignement at start of the received frame to store its l2_fhdr, so goal was not to reduce skb truesize (in fact it should not change after this patch) Using build_skb() reduces cache line misses in the driver, since we use cache hot skb instead of cold ones. Number of in-flight sk_buff structures is lower, they are more likely recycled in SLUB caches while still hot. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Michael Chan <mchan@broadcom.com> CC: Eilon Greenstein <eilong@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16net: Add ethtool to mii advertisment conversion helpersMatt Carlson
Translating between ethtool advertisement settings and MII advertisements are common operations for ethernet drivers. This patch adds a set of helper functions that implements the conversion. The patch then modifies a couple of the drivers to use the new functions. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16net: introduce and use netdev_features_t for device features setsMichał Mirosław
v2: add couple missing conversions in drivers split unexporting netdev_fix_features() implemented %pNF convert sock::sk_route_(no?)caps Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-08sweep the floors and convert some .get_drvinfo routines to strlcpyRick Jones
Per the mention made by Ben Hutchings that strlcpy is now the preferred string copy routine for a .get_drvinfo routine, do a bit of floor sweeping and convert some of the as-yet unconverted ethernet drivers to it. Signed-off-by: Rick Jones <rick.jones2@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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