On 06/26/2017 02:47 AM, Christoph Hellwig wrote:
On Sat, Jun 24, 2017 at 10:36:56AM -0500, Benjamin Herrenschmidt wrote:
I think we still need to do it. For example we have a bunch new "funky"
cases.
I have no plan to do away with the selection - I just want a better
interface than the curre
On 06/16/2017 11:10 AM, Christoph Hellwig wrote:
Hi all,
for a while we have a generic implementation of the dma mapping routines
that call into per-arch or per-device operations. But right now there
still are various bits in the interfaces where don't clearly operate
on these ops. This seri
On 05/25/2017 02:13 AM, Jeff Kirsher wrote:
On Fri, 2017-05-19 at 18:01 -0700, Tushar Dave wrote:
Fix bug introduced by 'commit 47994c119a36e ("i40e: remove
hw_disabled_flags in favor of using separate flag bits")' that
mistakenly wipes out pf->flags.
Signed-off-by: Tushar Dave
---
drivers/
On 04/12/2017 03:37 PM, tndave wrote:
On 04/06/2017 12:14 PM, Eric Dumazet wrote:
On Thu, 2017-04-06 at 12:07 -0700, tndave wrote:
+q_index = q_index % dev->real_num_tx_queues;
cpu interrupted here and dev->real_num_tx_queues has reduced!
+skb_set_queue_m
On 04/06/2017 12:14 PM, Eric Dumazet wrote:
On Thu, 2017-04-06 at 12:07 -0700, tndave wrote:
+ q_index = q_index % dev->real_num_tx_queues;
cpu interrupted here and dev->real_num_tx_queues has reduced!
+ skb_set_queue_mapping(skb, q
On 04/06/2017 03:26 AM, Eric Dumazet wrote:
On Wed, 2017-04-05 at 19:06 -0700, Tushar Dave wrote:
Reducing real_num_tx_queues needs to be in sync with skb queue_mapping
otherwise skbs with queue_mapping greater than real_num_tx_queues
can be sent to the underlying driver and can result in kern
On 03/29/2017 05:29 PM, Eric Dumazet wrote:
On Wed, 2017-03-29 at 16:55 -0700, Tushar Dave wrote:
There are events seen where skb->queue_mapping value is greater than
adapter->num_tx_queue. In such cases, adapter->tx_ring becomes invalid
(null) and xmit results in kernel panic.
One such event
On 03/08/2017 01:03 PM, Alexander Duyck wrote:
On Wed, Mar 8, 2017 at 11:30 AM, tndave wrote:
On 03/08/2017 07:39 AM, Alexander Duyck wrote:
On Tue, Mar 7, 2017 at 3:43 PM, tndave
wrote:
Hi,
I have few questions regarding ixgbe flow director. As per my
understanding flow director in
On 03/08/2017 07:39 AM, Alexander Duyck wrote:
On Tue, Mar 7, 2017 at 3:43 PM, tndave
wrote:
Hi,
I have few questions regarding ixgbe flow director. As per my
understanding flow director in ixgbe can work in 2 exclusive ways,
a. Using ATR filters - where flow director is setup in HW by
Hi,
I have few questions regarding ixgbe flow director.
As per my understanding flow director in ixgbe can work in 2 exclusive ways,
a. Using ATR filters - where flow director is setup in HW by driver
identifying transmit traffic. And based on that, receive traffic of the
same flow get assigned/d
On 01/27/2017 01:33 PM, John Fastabend wrote:
This is an experimental implementation of rx zero copy for af_packet.
Its a bit rough and likely has errors but the plan is to clean it up
over the next few months.
And seeing I said I would post it in another thread a few days back
here it is.
T
On 12/27/2016 04:40 PM, maowenan wrote:
-Original Message-
From: tndave [mailto:tushar.n.d...@oracle.com]
Sent: Wednesday, December 28, 2016 6:28 AM
To: maowenan; jeffrey.t.kirs...@intel.com; intel-wired-...@lists.osuosl.org
Cc: netdev@vger.kernel.org; weiyongjun (A); Dingtianhong
On 12/26/2016 03:39 AM, maowenan wrote:
-Original Message-
From: netdev-ow...@vger.kernel.org [mailto:netdev-ow...@vger.kernel.org]
On Behalf Of Tushar Dave
Sent: Tuesday, December 06, 2016 1:07 AM
To: jeffrey.t.kirs...@intel.com; intel-wired-...@lists.osuosl.org
Cc: netdev@vger.kern
On 12/08/2016 04:45 PM, tndave wrote:
On 12/08/2016 08:05 AM, Alexander Duyck wrote:
On Thu, Dec 8, 2016 at 2:43 AM, David Laight
wrote:
From: Alexander Duyck
Sent: 06 December 2016 17:10
...
I was thinking about it and I realized we can probably simplify
this even further. In the
On 12/08/2016 08:05 AM, Alexander Duyck wrote:
On Thu, Dec 8, 2016 at 2:43 AM, David Laight
wrote:
From: Alexander Duyck
Sent: 06 December 2016 17:10
...
I was thinking about it and I realized we can probably simplify
this even further. In the case of most other architectures the
DMA_ATTR
On 12/06/2016 09:10 AM, Alexander Duyck wrote:
On Mon, Dec 5, 2016 at 2:23 PM, tndave wrote:
On 12/05/2016 01:54 PM, Alexander Duyck wrote:
On Mon, Dec 5, 2016 at 9:07 AM, Tushar Dave
wrote:
Unlike previous generation NIC (e.g. ixgbe) i40e doesn't seem to have
standard CSR where
On 12/05/2016 01:54 PM, Alexander Duyck wrote:
On Mon, Dec 5, 2016 at 9:07 AM, Tushar Dave wrote:
Unlike previous generation NIC (e.g. ixgbe) i40e doesn't seem to have
standard CSR where PCIe relaxed ordering can be set. Without PCIe relax
ordering enabled, i40e performance is significantly l
On 10/15/2016 02:48 PM, David Miller wrote:
From: Tushar Dave
Date: Fri, 14 Oct 2016 17:06:04 -0700
Recently, ATU (iommu) changes are submitted to linux-sparc that
enables 64bit DMA on SPARC. However, this change also makes
'incompatible pointer type' compiler warnings inevitable on sunqe
an
Hi,
Running iperf tcp test on 2 sparc systems with i40e connected back to
back, I see huge number of 'port.rx_dropped' (on iperf server). Based on
past experience with ixgbe, this could very well because of PCIe RO
(relaxed ordering) not enabled.
I am trying to confirm RO is enabled. i40e datash
On systems with 128 CPUs, turning off TSO results in errors.
Errors:
i40e :03:00.0: failed to get tracking for 1 vectors for VSI 400, err=-12
i40e :03:00.0: Couldn't create FDir VSI
i40e :03:00.0: i40e_ptp_init: PTP not supported on eth0
i40e :03:00.0: couldn't add VEB, err I40E_E
On 01/30/2016 04:17 AM, tndave wrote:
On 01/27/2016 10:56 PM, David Miller wrote:
From: tndave
Date: Wed, 27 Jan 2016 17:50:14 -0800
Hi,
i40e driver has 'struct i40e_dma_mem' defined with 'packed' directive
causing kernel unaligned errors on sparc (when
40e_allocate_
On 01/27/2016 10:56 PM, David Miller wrote:
From: tndave
Date: Wed, 27 Jan 2016 17:50:14 -0800
Hi,
i40e driver has 'struct i40e_dma_mem' defined with 'packed' directive
causing kernel unaligned errors on sparc (when
40e_allocate_dma_mem_d()
is being called)
log_unali
Hi,
i40e driver has 'struct i40e_dma_mem' defined with 'packed' directive
causing kernel unaligned errors on sparc (when 40e_allocate_dma_mem_d()
is being called)
log_unaligned: 1031 callbacks suppressed
Kernel unaligned access at TPC[448ae8] dma_4v_alloc_coherent+0x188/0x2e0
Kernel unaligned ac
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