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path: root/drivers/net/ethernet/cisco/enic/vnic_dev.c
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2017-07-11cisco: enic: Fic an error handling path in 'vnic_dev_init_devcmd2()'Christophe Jaillet1-4/+5
if 'ioread32()' returns 0xFFFFFFF, we have to go through the error handling path as done everywhere else in this function. Move the 'err_free_wq' label to better match its name and its location and add a new label 'err_disable_wq'. Update the code accordingly. Fixes: 373fb0873d43 ("enic: add devcmd2") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10enic: add devcmds for vxlan offloadGovindarajulu Varadarajan1-0/+34
This patch adds devcmds needed for vxlan offload. Implement 3 new devcmd overlay_offload_ctrl: enable/disable offload overlay_offload_cfg: update offload udp port number get_supported_feature_ver: get hw supported offload version. Each version has different bitmap for csum_ok/encap Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-11cisco: enic: Update logging macros and usesJoe Perches1-22/+23
Don't hide varibles used by the logging macros. Miscellanea: o Use the more common ##__VA_ARGS__ extension o Add missing newlines to formats o Realign arguments Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-09enic: increment devcmd2 result ring in case of timeoutSandeep Pillai1-7/+12
Firmware posts the devcmd result in result ring. In case of timeout, driver does not increment the current result pointer and firmware could post the result after timeout has occurred. During next devcmd, driver would be reading the result of previous devcmd. Fix this by incrementing result even in case of timeout. Fixes: 373fb0873d43 ("enic: add devcmd2") Signed-off-by: Sandeep Pillai <sanpilla@cisco.com> Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05enic: do hang reset only in case of tx timeoutGovindarajulu Varadarajan1-2/+2
The current code invokes hang reset in case of error interrupt. We should hang reset only in case of tx timeout. This because of the way hang reset is implemented in firmware. Hang reset takes more firmware resources than soft reset. Adaptor does not generate error interrupt in case of tx timeout. Hang reset only in case of tx timeout, in .ndo_tx_timeout. Do soft reset otherwise. Introduce deferred work, enic_tx_hang_reset, to do hang reset. Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-26enic: reduce ioread in devcmd2Govindarajulu Varadarajan1-3/+5
posted_index is RO in firmware. We need not do ioread everytime to get posted index. Store posted index locally. Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-19enic: Fix namespace pollution causing build errors.David S. Miller1-2/+2
drivers/net/built-in.o: In function `.vnic_wq_devcmd2_alloc': (.text+0x49fe40): multiple definition of `.vnic_wq_devcmd2_alloc' drivers/scsi/built-in.o:(.text+0xb4318): first defined here drivers/net/built-in.o:(.opd+0x2af00): multiple definition of `vnic_wq_devcmd2_alloc' drivers/scsi/built-in.o:(.opd+0xad70): first defined here drivers/net/built-in.o: In function `.vnic_wq_init_start': (.text+0x49f9c0): multiple definition of `.vnic_wq_init_start' drivers/scsi/built-in.o:(.text+0xb3b58): first defined here drivers/net/built-in.o:(.opd+0x2ae88): multiple definition of `vnic_wq_init_start' drivers/scsi/built-in.o:(.opd+0xace0): first defined here Rename these to 'enic_*' to avoid the conflict with the functiosn of the same name in the snic scsi driver. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18enic: Fix sparse warning in vnic_devcmd_init().David S. Miller1-1/+1
>> drivers/net/ethernet/cisco/enic/vnic_dev.c:1095:13: sparse: incorrect type in assignment (different address spaces) drivers/net/ethernet/cisco/enic/vnic_dev.c:1095:13: expected void *res drivers/net/ethernet/cisco/enic/vnic_dev.c:1095:13: got void [noderef] <asn:2>* Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18enic: add devcmd2Govindarajulu Varadarajan1-7/+181
devcmd is an interface for driver to communicate with fw/adaptor. It involves writing data to hardware registers and waiting for the result. This mechanism does not scale well. The queuing of "no wait" devcmds is done in firmware memory rather than on the host. Firmware memory is a rather more scarce and valuable resource than host memory. A devcmd storm from one vf can disrupt the service on other pf/vf. The lack of flow control allows for possible denial of server from one VM to another. Devcmd2 uses work queue to post the devcmds, just like tx work queue. This allows better flow control. Initialize devcmd2, if fails we fall back to devcmd1. Also change the driver version. Signed-off-by: N V V Satyanarayana Reddy <nalreddy@cisco.com> Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18enic: use netdev_<foo> or dev_<foo> instead of pr_<foo>Govindarajulu Varadarajan1-25/+23
pr_info does not give any details about the interface involved. This patch uses netdev_info for printing the message. Use dev_info where netdev is not ready. Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18enic: move struct definition from .c to .h fileGovindarajulu Varadarajan1-39/+0
Some of the structure definitions are in .c file to make them private to that file. This patch moves the struct definition to .h file, So that their definitions are accessible from other files. Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-10drivers/net: Convert remaining uses of pr_warning to pr_warnJoe Perches1-2/+1
Use the much more common pr_warn instead of pr_warning. Other miscellanea: o Typo fixes submiting/submitting o Coalesce formats o Realign arguments o Add missing terminating '\n' to formats Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-09enic: use pci_zalloc_consistentJoe Perches1-5/+3
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <joe@perches.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Sujith Sankar <ssujith@cisco.com> Cc: Govindarajulu Varadarajan <_govind@gmx.com> Cc: Neel Patel <neepatel@cisco.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-24enic: devcmd for adding IP 5 tuple hardware filtersGovindarajulu Varadarajan1-0/+61
This patch adds interface to add and delete IP 5 tuple filter. This interface is used by Accelerated RFS code to steer a flow to corresponding receive queue. As of now adaptor supports only ipv4 + tcp/udp packet steering. Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-24enic: fix return value in _vnic_dev_cmdGovindarajulu Varadarajan1-2/+2
Hardware (in readq(&devcmd->args[0])) returns positive number in case of error. But _vnic_dev_cmd should return a negative value in case of error. Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-02enic: Update driver to use __dev_uc/mc_sync/unsync callsAlexander Duyck1-2/+2
This change updates the enic driver to make use of __dev_uc_sync and __dev_mc_sync calls. Previously the driver was doing its own list management by storing the mc_addr and uc_addr list in a 32 address array. With this change the sync data is stored in the netdev_addr_list structures and instead we just track how many addresses we have written to the device. When we encounter 32 we stop and print a message as occurred previously with the old approach. Other than the core change the only other bit needed was to propagate the constant attribute with the MAC address as there were several spots where is twas only passed as a u8 * instead of a const u8 *. This patch is meant to maintain the original functionality without the use of the mc_addr and uc_addr arrays. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05driver/net: enic: Exposing symbols for Cisco's low latency drivergovindarajulu.v1-0/+10
This patch exposes symbols for usnic low latency driver that can be used to register and unregister vNics as well to traverse the resources on vNics. Signed-off-by: Upinder Malhi <umalhi@cisco.com> Signed-off-by: Nishank Trivedi <nistrive@cisco.com> Signed-off-by: Christian Benvenuti <benve@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08enic: be less verbose about non-critical firmware errorsStefan Assmann1-0/+3
If a feature is not supported by firmware no need to print an error message. This surpresses the following harmless message on boot up and ethtool query. enic: Error 1 devcmd 36 Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-20enic: Add new fw devcmd to set mac address of an interfaceRoopa Prabhu1-0/+12
This patch adds a new devcmd CMD_SET_MAC_ADDR to set the mac address of an interface. Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: Christian Benvenuti <benve@cisco.com> Signed-off-by: Sujith Sankar <ssujith@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-20enic: rename CMD_MAC_ADDR to CMD_GET_MAC_ADDRRoopa Prabhu1-3/+3
firmware devcmd CMD_MAC_ADDR gets the mac address of a vnic from adapter. This patch renames it to CMD_GET_MAC_ADDR more appropriately. Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: Christian Benvenuti <benve@cisco.com> Signed-off-by: Sujith Sankar <ssujith@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-05enic: Check firmware capability before issuing firmware commandsNeel Patel1-27/+31
Check if firmware supports a particular command by first checking capability using devcmd CMD_CAPABILITY. Signed-off-by: Neel Patel <neepatel@cisco.com> Signed-off-by: Christian Benvenuti <benve@cisco.com> Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: Nishank Trivedi <nistrive@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-09-27enic: Helper code for SRIOV proxy commandsRoopa Prabhu1-5/+23
This patch adds helper functions to use PF as proxy for SRIOV VF firmware commands. Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: Sujith Sankar <ssujith@cisco.com> Signed-off-by: Christian Benvenuti <benve@cisco.com> Signed-off-by: David Wang <dwang2@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-11enic: Move the Cisco driverJeff Kirsher1-0/+1003
Move the Cisco driver into drivers/net/ethernet/cisco/ and make the necessary Kconfig and Makefile changes. CC: Christian Benvenuti <benve@cisco.com> CC: Vasanthy Kolluri <vkolluri@cisco.com> CC: Roopa Prabhu <roprabhu@cisco.com> CC: David Wang <dwang2@cisco.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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