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path: root/drivers/net/ethernet/intel/i40e/i40e_main.c
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* i40e: don't free nonexistent ringsMitch Williams2013-10-221-5/+6
| | | | | | | | | | | | Not all VSIs have rings! Check to see if rings were actually allocated before freeing them. This prevents a panic when tx_rings[0] is not allocated. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Sibai Li <sibai.li@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* i40e: do not flush after re-enabling interruptsJesse Brandeburg2013-10-221-1/+2
| | | | | | | | | Hot path doesn't need read-flush after interrupt enable, and this flush really causes a lot of extra cpu utilization. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* i40e: Bump versionCatherine Sullivan2013-10-091-1/+1
| | | | | | | | | Update the version number of the driver. Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* i40e: Add support for 64 bit netstatsAlexander Duyck2013-10-091-11/+67
| | | | | | | | | | | | This change brings support for 64 bit netstats to the driver. Previously the stats were 64 bit but highly racy due to the fact that 64 bit transactions are not atomic on 32 bit systems. This change makes is so that the 64 bit byte and packet stats are reliable on all architectures. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* i40e: Move rings from pointer to array to array of pointersAlexander Duyck2013-10-091-65/+77
| | | | | | | | | | | | | | | | Allocate the queue pairs individually instead of as a group. This allows for much easier queue management as it is possible to dynamically resize the queues without having to free and allocate the entire block. Ease statistic collection by treating Tx/Rx queue pairs as a single unit. Each pair is allocated together and starts with a Tx queue and ends with an Rx queue. By ordering them this way it is possible to know the Rx offset based on a pointer to the Tx queue. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* i40e: Replace ring container array with linked listAlexander Duyck2013-10-091-42/+42
| | | | | | | | | | | | This replaces the ring container array with a linked list. The idea is to make the logic much easier to deal with since this will allow us to call a simple helper function from the q_vectors to go through the entire list. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* i40e: Move q_vectors from pointer to array to array of pointersAlexander Duyck2013-10-091-46/+106
| | | | | | | | | | Allocate the q_vectors individually. The advantage to this is that it allows for easier freeing and allocation. In addition it makes it so that we could do node specific allocations at some point in the future. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* i40e: Split bytes and packets from Rx/Tx statsAlexander Duyck2013-10-091-4/+8
| | | | | | | | | | | | | | | | | | This makes it so that the Tx and Rx byte and packet counts are separated from the rest of the statistics. This allows for better isolation of these stats when we move them into the 64 bit statistics. Simplify things by re-ordering how the stats display in ethtool. Instead of displaying all of the Tx queues as a block, followed by all the Rx queues, the new order is Tx[0], Rx[0], Tx[1], Rx[1], ..., Tx[n], Rx[n]. This reduces the loops and cleans up the display for testing purposes since it is very easy to verify if flow director is doing the right thing as the Tx and Rx queue pair are shown in pairs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* i40e: Link code updatesAnjali Singhai2013-10-091-2/+6
| | | | | | | | | | Link events should not print to the log until the device is administratively up. Signed-off-by: Anjali Singhai <anjali.singhai@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* i40e: better return valuesJesse Brandeburg2013-09-271-16/+21
| | | | | | | | | | | | | | | | | As mentioned by Joe Perches, clean up return values in some functions making sure to have consistent return types, not mixing types. A couple of Joe's comments suggested returning void, but since the functions in question are ndo defined, the return values are fixed. So make a comment in the header that notes this is a function called by net_device_ops. v2: fix post increment bug in return CC: Joe Perches <joe@perches.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* i40e: convert ret to aq_retJesse Brandeburg2013-09-271-55/+52
| | | | | | | | | | | | | When calling admin queue functions the driver should use aq_ret variable to help make clear that the return value is not a regular return variable. This allows for clean up of the return types that were previously converted to int. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* i40e: small clean ups from reviewJesse Brandeburg2013-09-271-3/+3
| | | | | | | | | As mentioned by Joe Perches clean up a loop flow. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> CC: Joe Perches <joe@perches.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* i40e: use common failure flowJesse Brandeburg2013-09-271-6/+6
| | | | | | | | | | | | | | As mentioned by Joe Perches, we should be using foo = alloc(...) if (!foo) return -ENOMEM; return 0; Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> CC: Joe Perches <joe@perches.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* i40e: main driver coreJesse Brandeburg2013-09-111-0/+7375
This is the driver for the Intel(R) Ethernet Controller XL710 Family. This driver is targeted at basic ethernet functionality only, and will be improved upon further as time goes on. This patch contains the driver entry points but does not include transmit and receive (see the next patch in the series) routines. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com> CC: e1000-devel@lists.sourceforge.net Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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