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path: root/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
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2017-08-20cxgb4/cxgbvf: Handle 32-bit fw port capabilitiesGanesh Goudar
Implement new 32-bit Firmware Port Capabilities in order to handle new speeds which couldn't be represented in the old 16-bit Firmware Port Capabilities values. Based on the original work of Casey Leedom <leedom@chelsio.com> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-14net/cxgb4vf: Use new PCI_DEV_FLAGS_NO_RELAXED_ORDERING flagCasey Leedom
cxgb4vf Ethernet driver now queries PCIe configuration space to determine if it can send TLPs to it with the Relaxed Ordering Attribute set, just like the pf did. Signed-off-by: Casey Leedom <leedom@chelsio.com> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Reviewed-by: Casey Leedom <leedom@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-06cxgb4/cxgb4vf: Display 25G and 100G link speedGanesh Goudar
Add support to report 25G and 100G links, which was missed as part of commit "eb97ad99f9ed". Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2016-12-08cxgb4/cxgb4vf: Assign netdev->dev_port with port IDArjun V
Added missing dev_port assignment in cxgb4vf driver. Also made dev_port assignment of cxgb4 in sync with cxgb4vf driver. Signed-off-by: Casey Leedom <leedom@chelsio.com> Signed-off-by: Arjun V <arjun@chelsio.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08cxgb4/cxgb4vf: Remove deprecated module parametersGanesh Goudar
Remove deprecated module parameters num_vf, dflt_msg_enable and force_init. Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-20ethernet: use net core MTU range checking in more driversJarod Wilson
Somehow, I missed a healthy number of ethernet drivers in the last pass. Most of these drivers either were in need of an updated max_mtu to make jumbo frames possible to enable again. In a few cases, also setting a different min_mtu to match previous lower bounds. There are also a few drivers that had no upper bounds checking, so they're getting a brand new ETH_MAX_MTU that is identical to IP_MAX_MTU, but accessible by includes all ethernet and ethernet-like drivers all have already. acenic: - min_mtu = 0, max_mtu = 9000 amazon/ena: - min_mtu = 128, max_mtu = adapter->max_mtu amd/xgbe: - min_mtu = 0, max_mtu = 9000 sb1250: - min_mtu = 0, max_mtu = 1518 cxgb3: - min_mtu = 81, max_mtu = 65535 cxgb4: - min_mtu = 81, max_mtu = 9600 cxgb4vf: - min_mtu = 81, max_mtu = 65535 benet: - min_mtu = 256, max_mtu = 9000 ibmveth: - min_mtu = 68, max_mtu = 65535 ibmvnic: - min_mtu = adapter->min_mtu, max_mtu = adapter->max_mtu - remove now redundant ibmvnic_change_mtu jme: - min_mtu = 1280, max_mtu = 9202 mv643xx_eth: - min_mtu = 64, max_mtu = 9500 mlxsw: - min_mtu = 0, max_mtu = 65535 - Basically bypassing the core checks, and instead relying on dynamic checks in the respective switch drivers' ndo_change_mtu functions ns83820: - min_mtu = 0 - remove redundant ns83820_change_mtu, only checked for mtu > 1500 netxen: - min_mtu = 0, max_mtu = 8000 (P2), max_mtu = 9600 (P3) qlge: - min_mtu = 1500, max_mtu = 9000 - driver only supports setting mtu to 1500 or 9000, so the core check only rules out < 1500 and > 9000, qlge_change_mtu still needs to check that the value is 1500 or 9000 qualcomm/emac: - min_mtu = 46, max_mtu = 9194 xilinx_axienet: - min_mtu = 64, max_mtu = 9000 Fixes: 61e84623ace3 ("net: centralize net_device min/max MTU checking") CC: netdev@vger.kernel.org CC: Jes Sorensen <jes@trained-monkey.org> CC: Netanel Belgazal <netanel@annapurnalabs.com> CC: Tom Lendacky <thomas.lendacky@amd.com> CC: Santosh Raspatur <santosh@chelsio.com> CC: Hariprasad S <hariprasad@chelsio.com> CC: Sathya Perla <sathya.perla@broadcom.com> CC: Ajit Khaparde <ajit.khaparde@broadcom.com> CC: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> CC: Somnath Kotur <somnath.kotur@broadcom.com> CC: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> CC: John Allen <jallen@linux.vnet.ibm.com> CC: Guo-Fu Tseng <cooldavid@cooldavid.org> CC: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> CC: Jiri Pirko <jiri@mellanox.com> CC: Ido Schimmel <idosch@mellanox.com> CC: Manish Chopra <manish.chopra@qlogic.com> CC: Sony Chacko <sony.chacko@qlogic.com> CC: Rajesh Borundia <rajesh.borundia@qlogic.com> CC: Timur Tabi <timur@codeaurora.org> CC: Anirudha Sarangi <anirudh@xilinx.com> CC: John Linn <John.Linn@xilinx.com> Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-28cxgb4/cxgb4vf: fix spelling mistake "provissioned" -> "provisioned"Colin Ian King
Trivial fix to spelling mistake in dev_warn message. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-14cxgb4/cxgb4vf: Add set VF mac address supportHariprasad Shenai
Add ndo_set_vf_mac support which allows to set the MAC address for cxgb4vf interfaces from the host Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-25cxgb4/cxgb4vf: Add link mode mask API to cxgb4 and cxgb4vfGanesh Goudar
Based on original work by Casey Leedom <leedom@chelsio.com> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25cxgb4vf: Synchronize access to mailboxHariprasad Shenai
The issue comes when there are multiple threads attempting to use the mailbox facility at the same time. The issue is the for the Virtual Function Driver, the only way to get the Virtual Interface statistics is to issue mailbox commands to ask the firmware for the VI Stats. And, because the VI Stats command can only retrieve a smallish number of stats per mailbox command, we have to issue three mailbox commands in quick succession. When ethtool or netstat command to get interface stats and interface up/down is run in a loop for every 0.1 sec, we observed mailbox collisions. And out of the two commands one would fail with the present code, since we don't queue the second command. To overcome the above issue, added a queue to access the mailbox. Whenever a mailbox command is issued add it to the queue. If its at the head issue the mailbox command, else wait for the existing command to complete. Usually command takes less than a milli-second to complete. Also timeout from the loop, if the command under execution takes long time to run. In reality, the number of mailbox access collisions is going to be very rare since no one runs such abusive script. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15cxgb4/cxgb4vf: Synchronize all MAC addressesHariprasad Shenai
Even if interface is in Promiscuous mode/Allmulti mode synchronize MAC addresses. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29cxgb4vf: Add support to enable logging of firmware mailbox commands for VFHariprasad Shenai
Add new /sys/kernel/debug/ support to dump firmware mailbox commands and replies for debugging purpose. Based on original work by Casey Leedom <leedom@chelsio.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-06cxgb4/cxgb4vf: Deprecate module parameter dflt_msg_enableHariprasad Shenai
Message level can be set through ethtool, so deprecate module parameter which is used to set the same. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-10cxgb4vf: Set number of queues in pci probe onlyHariprasad Shenai
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-10cxgb4vf: Add a couple more checks for invalid provisioning configurationsHariprasad Shenai
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-10cxgb4vf: Configure queue based on resource and interrupt typeHariprasad Shenai
The Queue Set Configuration code was always reserving room for a Forwarded interrupt Queue even in the cases where we weren't using it. Figure out how many Ports and Queue Sets we can support. This depends on knowing our Virtual Function Resources and may be called a second time if we fall back from MSI-X to MSI Interrupt Mode. This change fixes that problem. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-10cxgb4vf: Enable interrupts before we register our network devicesHariprasad Shenai
This avoids a race condition where a system that has network devices set up to be automatically configured and we get the first Port Link Status message from the firmware on the Asynchronous Firmware Event Queue before we've enabled interrupts. If that happens, we end up losing the interrupt and never realizing that the links has actually come up. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02cxgb4vf: Remove dead functions collect_netdev_[um]c_list_addrsHariprasad Shenai
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02cxgb4vf: Remove redundant adapter ready check during probeHariprasad Shenai
Function t4vf_wait_dev_ready() is already called in t4vf_prep_adapter(), no need to call it again in adap_init0(). Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18cxgb4vf: Use __dev_uc_sync/__dev_mc_sync to sync MAC addressHariprasad Shenai
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-22cxgb4/cxgb4vf: Update driver desc. to include Chelsio T6 adapterHariprasad Shenai
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-12cxgb4/cxgb4vf: Cleanup macros, add comments and add new MACROSHariprasad Shenai
Cleanup few MACROS left out in t4_hw.h to be consistent with the existing ones. Also replace few hardcoded values with MACROS. Also update comments for some code Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-19cxgb4/cxgb4vf/csiostor: Make PCI Device ID Tables be "const"Hariprasad Shenai
Make PCI Device ID Tables be "const" to move them out of the data segment and remove a redundant check on CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN in t4_pci_id_tbl.h to guard the contents of the include file. Signed-off-by: Casey Leedom <leedom@chelsio.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/xen-netfront.c Minor overlapping changes in xen-netfront.c, mostly to do with some buffer management changes alongside the split of stats into TX and RX. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-14cxgb4vf: Fix queue allocation for 40G adapterHariprasad Shenai
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-12iw_cxgb4/cxgb4/cxgb4vf/cxgb4i/csiostor: Cleanup register defines/macros ↵Hariprasad Shenai
related to all other cpl messages This patch cleanups all other macros/register define related to CPL messages that are defined in t4_msg.h and the affected files Signed-off-by: Anish Bhatt <anish@chelsio.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-12iw_cxgb4/cxgb4/cxgb4i: Cleanup register defines/MACROS related to CM CPL ↵Hariprasad Shenai
messages This patch cleanups all macros/register define related to connection management CPL messages that are defined in t4_msg.h and the affected files Signed-off-by: Anish Bhatt <anish@chelsio.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-05cxgb4/cxgb4vf/csiostor: Cleanup PL, XGMAC, SF and MC related register definesHariprasad Shenai
This patch cleanups all PL, XGMAC and SF related macros/register defines that are defined in t4_regs.h and the affected files Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-05cxgb4/cxgb4vf/csiostor: Cleanup SGE and PCI related register definesHariprasad Shenai
This patch cleansup remaining SGE related macros/register defines and all PCI related ones that are defined in t4_regs.h and the affected files. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-05RDMA/cxgb4/cxgb4vf/csiostor: Cleanup SGE register definesHariprasad Shenai
This patch cleanups all SGE related macros/register defines that are defined in t4_regs.h and the affected files. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-22cxgb4vf: Fix ethtool get_settings for VF driverHariprasad Shenai
Decode and display Port Type and Module Type for ethtool get_settings() call Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-09cxgb4/cxgb4vf: Use new interfaces to calculate BAR2 SGE Queue Register addressesHariprasad Shenai
Use BAR2 Going To Sleep (GTS) for T5 and later. Use new BAR2 User Doorbells for T5 for both cxgb4 and cxgb4vf driver. Based on original work by Casey Leedom <leedom@chelsio.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-09cxgb4vf: Add and initialize some sge params for VF driverHariprasad Shenai
Add sge_vf_eq_qpp and sge_vf_iq_qpp to (struct sge_params), initialize sge_queues_per_page and sge_vf_qpp in t4vf_get_sge_params(), add new t4vf_prep_adapter() which initializes basic adapter parameters. Grab both SGE_EGRESS_QUEUES_PER_PAGE_VF and SGE_INGRESS_QUEUES_PER_PAGE_VF for VF Drivers since we need both to calculate the User Doorbell area offsets for Egress and Ingress Queues. Based on original work by Casey Leedom <leedom@chelsio.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-25cxgb4/cxgb4vf/csiostor: Add T4/T5 PCI ID TableHariprasad Shenai
Add a new file t4_pci_id_tbl.h that contains T4/T5 PCI ID Table so that for all drivers that uses T4/T5 PCI functions changes can be done in one place. checkpatch.pl script reports following error, which if tried to fix ends up in compilation error. ERROR: Macros with complex values should be enclosed in parentheses +#define CH_PCI_DEVICE_ID_TABLE_DEFINE_END \ + { 0, } \ + } WARNING: added, moved or deleted file(s), does MAINTAINERS need updating? new file mode 100644 ERROR: Macros with complex values should be enclosed in parentheses +#define CH_PCI_ID_TABLE_FENTRY(devid) \ + CH_PCI_ID_TABLE_ENTRY((devid) | \ + ((CH_PCI_DEVICE_ID_FUNCTION) << 8)), \ + CH_PCI_ID_TABLE_ENTRY((devid) | \ + ((CH_PCI_DEVICE_ID_FUNCTION2) << 8)) ERROR: Macros with complex values should be enclosed in parentheses +#define CH_PCI_DEVICE_ID_TABLE_DEFINE_END { 0, } } ERROR: Macros with complex values should be enclosed in parentheses +#define CH_PCI_DEVICE_ID_TABLE_DEFINE_END { 0, } } Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-22RDMA/cxgb4/cxgb4vf/csiostor: Cleanup macros/register defines related to ↵Hariprasad Shenai
PCIE, RSS and FW This patch cleanups all PCIE, RSS & FW related macros/register defines that are defined in t4fw_api.h and the affected files. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-22RDMA/cxgb4/csiostor: Cleansup FW related macros/register defines for PF/VF ↵Hariprasad Shenai
and LDST This patch cleanups PF/VF and LDST related macros/register defines that are defined in t4fw_api.h and the affected files. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-29cxgb4vf: Replace repetitive pci device ID's with right onesHariprasad Shenai
Replaced repetive Device ID's which got added in commit b961f9a48844ecf3 ("cxgb4vf: Remove superfluous "idx" parameter of CH_DEVICE() macro") Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-09cxgb4vf: Add 40G support for cxgb4vf driverHariprasad Shenai
Add 40G support for cxgb4vf driver. ethtool speed values are just numbers of megabits and there is no SPEED_40000 in ethtool speed values. To be consistent, use integer constants directly for all speeds. Use is_x_10g_port()("is 10Gb/s or higher") in cfg_queues() instead of is_10g_port() ("is exactly 10Gb/s"). Else we will end up using a single "Queue Set" on 40Gb/s adapters. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-28cxgb4/cxgb4vf: Add Devicde ID for two more adapterHariprasad Shenai
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-28cxgb4vf: Remove superfluous "idx" parameter of CH_DEVICE() macro.Hariprasad Shenai
Remove redundant idx parameter of CH_DEVICE() macro, its always zero. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-10cxgb4/cxgb4vf: Add device ID for new adapter and remove for dbg adapterHariprasad Shenai
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-12PCI: Remove DEFINE_PCI_DEVICE_TABLE macro useBenoit Taine
We should prefer `struct pci_device_id` over `DEFINE_PCI_DEVICE_TABLE` to meet kernel coding style guidelines. This issue was reported by checkpatch. A simplified version of the semantic patch that makes this change is as follows (http://coccinelle.lip6.fr/): // <smpl> @@ identifier i; declarer name DEFINE_PCI_DEVICE_TABLE; initializer z; @@ - DEFINE_PCI_DEVICE_TABLE(i) + const struct pci_device_id i[] = z; // </smpl> [bhelgaas: add semantic patch] Signed-off-by: Benoit Taine <benoit.taine@lip6.fr> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-08-05cxgb4vf: Turn off SGE RX/TX Callback Timers and interrupts in PCI shutdown ↵Hariprasad Shenai
routine Need to turn off SGE RX/TX Callback Timers & interrupt in cxgb4vf PCI Shutdown routine in order to prevent crashes during reboot/poweroff when traffic is running. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-01cxgb4vf: Adds device ID for few more Chelsio T4 AdaptersHariprasad Shenai
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-13net: get rid of SET_ETHTOOL_OPSWilfried Klaebe
net: get rid of SET_ETHTOOL_OPS Dave Miller mentioned he'd like to see SET_ETHTOOL_OPS gone. This does that. Mostly done via coccinelle script: @@ struct ethtool_ops *ops; struct net_device *dev; @@ - SET_ETHTOOL_OPS(dev, ops); + dev->ethtool_ops = ops; Compile tested only, but I'd seriously wonder if this broke anything. Suggested-by: Dave Miller <davem@davemloft.net> Signed-off-by: Wilfried Klaebe <w-lkml@lebenslange-mailadresse.de> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-28cxgb4vf: Adds device Id for few more Chelsio adaptersHariprasad Shenai
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-18cxgb4vf: Use pci_enable_msix_range() instead of pci_enable_msix()Alexander Gordeev
As result of deprecation of MSI-X/MSI enablement functions pci_enable_msix() and pci_enable_msi_block() all drivers using these two interfaces need to be updated to use the new pci_enable_msi_range() and pci_enable_msix_range() interfaces. Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Cc: Casey Leedom <leedom@chelsio.com> Cc: netdev@vger.kernel.org Cc: linux-pci@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-18cxgb4vf: Remove superfluous call to pci_disable_msix()Alexander Gordeev
There is no need to call pci_disable_msix() in case the previous call to pci_enable_msix() failed Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Cc: Casey Leedom <leedom@chelsio.com> Cc: netdev@vger.kernel.org Cc: linux-pci@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-03cxgb4vf: added much cleaner implementation of is_t4()Hariprasad Shenai
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>