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path: root/drivers/net/ethernet/pensando
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2021-04-14ionic: return -EFAULT if copy_to_user() failsDan Carpenter1-1/+3
The copy_to_user() function returns the number of bytes that it wasn't able to copy. We want to return -EFAULT to the user. Fixes: fee6efce565d ("ionic: add hw timestamp support files") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-14ionic: git_ts_info bit shiftersShannon Nelson1-13/+13
All the uses of HWTSTAMP_FILTER_* values need to be bit shifters, not straight values. v2: fixed subject and added Cc Dan and SoB Allen Fixes: f8ba81da73fc ("ionic: add ethtool support for PTP") Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: Allen Hubbe <allenbh@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-08ionic: extend ts_config set lockingShannon Nelson1-6/+10
Make sure the configuration is locked before operating on it for the replay. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-08ionic: add ts_config replayShannon Nelson3-32/+60
Split the call into ionic_lif_hwstamp_set() to have two separate interfaces, one from the ioctl() for changing the configuration and one for replaying the current configuration after a FW RESET. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-08ionic: ignore EBUSY on queue startShannon Nelson1-1/+1
When starting the queues in the link-check, don't go into the BROKEN state if the return was EBUSY. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-08ionic: re-start ptp after queues upShannon Nelson1-3/+3
When returning after a firmware reset, re-start the PTP after we've restarted the general queues. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-08ionic: add SKBTX_IN_PROGRESSShannon Nelson1-0/+1
Set the SKBTX_IN_PROGRESS when offloading the Tx timestamp. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-08ionic: check for valid tx_mode on SKBTX_HW_TSTAMP xmitShannon Nelson1-1/+1
Make sure the device is in a Tx offload mode before calling the hwstamp offload xmit. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-08ionic: remove unnecessary compat ifdefShannon Nelson1-2/+0
We don't need to look for HAVE_HWSTAMP_TX_ONESTEP_P2P in the upstream kernel. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-08ionic: fix up a couple of code style nitsShannon Nelson1-6/+4
Clean up variable declarations. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-03ionic: advertise support for hardware timestampsShannon Nelson1-0/+25
Let the network stack know we've got support for timestamping the packets. Signed-off-by: Allen Hubbe <allenbh@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-03ionic: ethtool ptp statsShannon Nelson1-4/+34
Add the new hwstamp stats to our ethtool stats output. Signed-off-by: Allen Hubbe <allenbh@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-03ionic: add ethtool support for PTPShannon Nelson1-0/+93
Add the get_ts_info() callback for ethtool support of timestamping information. Signed-off-by: Allen Hubbe <allenbh@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-03ionic: add and enable tx and rx timestamp handlingShannon Nelson4-25/+157
The Tx and Rx timestamped packets are handled through separate queues. Here we set them up, service them, and tear them down along with the normal Tx and Rx queues. Signed-off-by: Allen Hubbe <allenbh@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-03ionic: set up hw timestamp queuesShannon Nelson1-5/+261
We do hardware timestamping through a separate Tx queue, and optionally through a separate Rx queue. These queues are allocated, freed, and tracked separately from the basic queue arrays. Signed-off-by: Allen Hubbe <allenbh@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-03ionic: add rx filtering for hw timestamp steeringShannon Nelson2-0/+22
Add handling of the new Rx packet classification filter type. This simple bit of classification allows for steering packets to a separate Rx queue for processing. Signed-off-by: Allen Hubbe <allenbh@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-03ionic: link in the new hw timestamp codeShannon Nelson7-0/+107
These are changes to compile and link the new code, but no new feature support is available or advertised yet. Signed-off-by: Allen Hubbe <allenbh@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-03ionic: add hw timestamp support filesShannon Nelson1-0/+589
This adds the file of code for supporting Tx and Rx hardware timestamps and the raw clock interface, but does not yet link it in for compiling or use. Signed-off-by: Allen Hubbe <allenbh@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-03ionic: split adminq post and wait callsShannon Nelson2-4/+13
Split the wait part out of adminq_post_wait() into a separate function so that a caller can have finer grain control over the sequencing of operations and locking. Signed-off-by: Allen Hubbe <allenbh@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-03ionic: add hw timestamp structs to interfaceShannon Nelson2-6/+170
The interface for hardware timestamping includes a new FW request, device identity fields, Tx and Rx queue feature bits, a new Rx filter type, the beginnings of Rx packet classifications, and hardware timestamp registers. If the IONIC_ETH_HW_TIMESTAMP bit is shown in the ionic_lif_config features bit string, then we have support for the hw clock registers. If the IONIC_RXQ_F_HWSTAMP and IONIC_TXQ_F_HWSTAMP features are shown in the ionic_q_identity features, then the queues can support HW timestamps on packets. Signed-off-by: Allen Hubbe <allenbh@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-03ionic: add handling of larger descriptorsShannon Nelson4-29/+73
In preparating for hardware timestamping, we need to support large Tx and Rx completion descriptors. Here we add the new queue feature ids and handling for the completion descriptor sizes. We only are adding support for the Rx 2x sized completion descriptors in the general Rx queues for now as we will be using it for PTP Rx support, and we don't have an immediate use for the large descriptors in the general Tx queues yet; it will be used in a special Tx queues added in one of the next few patches. Signed-off-by: Allen Hubbe <allenbh@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-03ionic: add new queue features to interfaceShannon Nelson3-6/+25
Add queue feature extensions to prepare for features that can be queue specific, in addition to the general queue features already defined. While we're here, change the existing feature ids from #defines to enum. Signed-off-by: Allen Hubbe <allenbh@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-31ionic: pull per-q stats work out of queue loopsShannon Nelson1-94/+125
Abstract out the per-queue data collection work into separate functions from the per-queue loops in the stats reporting, similar to what Alex did for the data label strings in commit acebe5b6107c ("ionic: Update driver to use ethtool_sprintf") Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-31ionic: avoid races in ionic_heartbeat_checkShannon Nelson2-37/+63
Rework the heartbeat checks to be sure that we're getting an atomic operation. Through testing we found occasions where a separate thread could clash with this check and cause erroneous heartbeat check results. Signed-off-by: Allen Hubbe <allenbh@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-31ionic: fix sizeof usageShannon Nelson1-4/+4
Use the actual pointer that we care about as the subject of the sizeof, rather than a struct name. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-31ionic: count dma errorsShannon Nelson1-2/+7
Increment our dma-error counter in a couple of spots that were missed before. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller1-5/+7
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-19ionic: protect adminq from early destroyShannon Nelson2-8/+28
Don't destroy the adminq while there is an outstanding request. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-19ionic: stop watchdog when in broken stateShannon Nelson2-2/+24
Up to now we've been ignoring any error return from the queue starting in the link status check, so we fix that here. If the driver had to reset and couldn't get things running properly again, for example after a Tx Timeout and the FW is not responding to commands, don't let the link watchdog try to restart the queues. At this point the user can try to DOWN and UP the device to clear the errors. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-19ionic: block actions during fw resetShannon Nelson3-4/+15
Block some actions while the FW is in a reset activity and the queues are not configured. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-19ionic: update ethtool support bits for BASETShannon Nelson2-0/+10
Add support in get_link_ksettings for a couple of new BASET connections. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-19ionic: fix unchecked referenceShannon Nelson1-1/+1
We can get to the counter without going through the pointer that the robot complained about. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-19ionic: simplify the intr_index use in txq_initShannon Nelson1-4/+2
The qcq->intr.index was set when the queue was allocated, there is no need to reach around to find it. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-19ionic: code cleanup detailsShannon Nelson3-32/+25
Catch a couple of missing macro name uses, fix a couple of misspellings, etc. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-17ionic: Update driver to use ethtool_sprintfAlexander Duyck1-85/+60
Update the ionic driver to make use of ethtool_sprintf. In addition add separate functions for Tx/Rx stats strings in order to reduce the total amount of indenting needed in the driver code. Acked-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: Alexander Duyck <alexanderduyck@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-17ionic: linearize tso skb with too many fragsShannon Nelson1-6/+7
We were linearizing non-TSO skbs that had too many frags, but we weren't checking number of frags on TSO skbs. This could lead to a bad page reference when we received a TSO skb with more frags than the Tx descriptor could support. v2: use gso_segs rather than yet another division don't rework the check on the nr_frags Fixes: 0f3154e6bcb3 ("ionic: Add Tx and Rx handling") Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-16ionic: aggregate Tx byte counting callsShannon Nelson2-3/+25
Gather the Tx packet and byte counts and call netdev_tx_completed_queue() only once per clean cycle. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-16ionic: simplify tx cleanShannon Nelson1-23/+7
The descriptor mappings are set up the same way whether or not it is a TSO, so we don't need separate logic for the two cases. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-16ionic: generic tx skb mappingShannon Nelson1-74/+68
Make the new ionic_tx_map_tso() usable by the non-TSO paths, and pull the call up a level into ionic_tx() before calling the csum or no-csum routines. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-16ionic: simplify TSO descriptor mappingShannon Nelson2-125/+117
One issue with the original TSO code was that it was working too hard to deal with skb layouts that were never going to show up, such as an skb->data that was longer than a single descriptor's length. The other issue was trying to arrange the fragment dma mapping at the same time as figuring out the descriptors needed. There was just too much going on at the same time. Now we do the dma mapping first, which sets up the buffers with skb->data in buf[0] and the remaining frags in buf[1..n-1]. Next we spread the bufs across the descriptors needed, where each descriptor gets up to mss number of bytes. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-11ionic: simplify use of completion typesShannon Nelson1-12/+7
Make better use of our struct types and type checking by passing the actual Rx or Tx completion type rather than a generic void pointer type. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-11ionic: rebuild debugfs on qcq swapShannon Nelson1-0/+3
With a reconfigure of each queue is needed a rebuild of the matching debugfs information. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-11ionic: simplify rx skb allocShannon Nelson1-41/+22
Remove an unnecessary layer over rx skb allocation. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-11ionic: optimize fastpath struct usageShannon Nelson6-39/+34
Clean up a couple of struct uses to make for better fast path access. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-11ionic: implement Rx page reuseShannon Nelson2-89/+138
Rework the Rx buffer allocations to use pages twice when using normal MTU in order to cut down on buffer allocation and mapping overhead. Instead of tracking individual pages, in which we may have wasted half the space when using standard 1500 MTU, we track buffers which use half pages, so we can use the second half of the page rather than allocate and map a new page once the first buffer has been used. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-11ionic: move rx_page_alloc and freeShannon Nelson1-70/+70
Move ionic_rx_page_alloc() and ionic_rx_page_free() to earlier in the file to make the next patch easier to review. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-17ionic: Remove unused function pointer typedef ionic_reset_cbChen Lin1-2/+0
Remove the 'ionic_reset_cb' typedef as it is not used. Signed-off-by: Chen Lin <chen.lin5@zte.com.cn> Acked-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-01-20net: add inline function skb_csum_is_sctpXin Long1-1/+1
This patch is to define a inline function skb_csum_is_sctp(), and also replace all places where it checks if it's a SCTP CSUM skb. This function would be used later in many networking drivers in the following patches. Suggested-by: Alexander Duyck <alexander.duyck@gmail.com> Signed-off-by: Xin Long <lucien.xin@gmail.com> Reviewed-by: Alexander Duyck <alexanderduyck@fb.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-22ionic: account for vlan tag len in rx buffer lenShannon Nelson1-1/+1
Let the FW know we have enough receive buffer space for the vlan tag if it isn't stripped. Fixes: 0f3154e6bcb3 ("ionic: Add Tx and Rx handling") Signed-off-by: Shannon Nelson <snelson@pensando.io> Link: https://lore.kernel.org/r/20201218215001.64696-1-snelson@pensando.io Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-09drivers: net: ionic: simplify the return expression of ionic_set_rxfh()Zheng Yongjun1-6/+1
Simplify the return expression. Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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