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path: root/drivers/net/ethernet/intel/i40e/i40e_main.c
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2013-10-29i40e: fix error return code in i40e_probe()Wei Yongjun1-1/+3
Fix to return -ENOMEM in the memory alloc error handling case instead of 0, as done elsewhere in this function. Signed-off-by: Wei Yongjun <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-10-22i40e: Bump versionCatherine Sullivan1-1/+1
Update the driver version. Signed-off-by: Catherine Sullivan <[email protected]> Signed-off-by: Jesse Brandeburg <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-10-22i40e: use pf_id for pf function id in qtx_ctlShannon Nelson1-2/+2
Simplify code by using an already existing variable. Signed-off-by: Shannon Nelson <[email protected]> Signed-off-by: Jesse Brandeburg <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-10-22i40e: tweaking icr0 handling for legacy irqShannon Nelson1-7/+5
Fix the overactive irq issue seen in testing and allow use of the legacy interrupt. Signed-off-by: Shannon Nelson <[email protected]> Signed-off-by: Jesse Brandeburg <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-10-22i40e: fixup legacy interrupt handlingShannon Nelson1-6/+12
There were a number of little bugs in the error handling of irq setup, most of which ended up panicing the kernel, and are addressed by this patch, along with a couple formatting issues. Legacy interrupts (including MSI) are used only in the case of failure to allocate MSI-X interrupts. Signed-off-by: Jesse Brandeburg <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-10-22i40e: don't free nonexistent ringsMitch Williams1-5/+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 <[email protected]> Signed-off-by: Jesse Brandeburg <[email protected]> Tested-by: Sibai Li <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-10-22i40e: do not flush after re-enabling interruptsJesse Brandeburg1-1/+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 <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-10-09i40e: Bump versionCatherine Sullivan1-1/+1
Update the version number of the driver. Signed-off-by: Catherine Sullivan <[email protected]> Signed-off-by: Jesse Brandeburg <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-10-09i40e: Add support for 64 bit netstatsAlexander Duyck1-11/+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 <[email protected]> Signed-off-by: Jesse Brandeburg <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-10-09i40e: Move rings from pointer to array to array of pointersAlexander Duyck1-65/+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 <[email protected]> Signed-off-by: Jesse Brandeburg <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-10-09i40e: Replace ring container array with linked listAlexander Duyck1-42/+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 <[email protected]> Signed-off-by: Jesse Brandeburg <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-10-09i40e: Move q_vectors from pointer to array to array of pointersAlexander Duyck1-46/+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 <[email protected]> Signed-off-by: Jesse Brandeburg <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-10-09i40e: Split bytes and packets from Rx/Tx statsAlexander Duyck1-4/+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 <[email protected]> Signed-off-by: Jesse Brandeburg <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-10-09i40e: Link code updatesAnjali Singhai1-2/+6
Link events should not print to the log until the device is administratively up. Signed-off-by: Anjali Singhai <[email protected]> Signed-off-by: Jesse Brandeburg <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-09-27i40e: better return valuesJesse Brandeburg1-16/+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 <[email protected]> Signed-off-by: Jesse Brandeburg <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-09-27i40e: convert ret to aq_retJesse Brandeburg1-55/+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 <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-09-27i40e: small clean ups from reviewJesse Brandeburg1-3/+3
As mentioned by Joe Perches clean up a loop flow. Signed-off-by: Jesse Brandeburg <[email protected]> CC: Joe Perches <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-09-27i40e: use common failure flowJesse Brandeburg1-6/+6
As mentioned by Joe Perches, we should be using foo = alloc(...) if (!foo) return -ENOMEM; return 0; Signed-off-by: Jesse Brandeburg <[email protected]> CC: Joe Perches <[email protected]> Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
2013-09-11i40e: main driver coreJesse Brandeburg1-0/+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 <[email protected]> Signed-off-by: Shannon Nelson <[email protected]> CC: PJ Waskiewicz <[email protected]> CC: [email protected] Tested-by: Kavindya Deegala <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
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