* [PATCH] ixgbe 82599: Query assignment of queues to Virtual Function
@ 2013-10-21 14:11 Qinglai Xiao
[not found] ` <1382364674-27098-1-git-send-email-jigsaw-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
0 siblings, 1 reply; 10+ messages in thread
From: Qinglai Xiao @ 2013-10-21 14:11 UTC (permalink / raw)
To: dev-VfR2kkLFssw
Physical Function assignes Tx/Rx queues to each VF according to
different schemes[1]. By querying through mailbox, VF is able to
get number of Tx/Rx queues assigned to it.
Note that current Intel ixgbe driver ixgbe-3.18.7 does not fully
support mailbox message IXGBE_VF_GET_QUEUES. The service routine
for IXGBE_VF_GET_QUEUES must be fixed, otherwise PF always return
1 as Tx/Rx queue number.
[1] See section 7.2.1.2.1, 7.1.2.2 and 7.10.2.7.2 of Intel 82599 10
Gbe Controller Datasheet.
Signed-off-by: Qinglai Xiao <jigsaw-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
lib/librte_pmd_ixgbe/ixgbe_ethdev.c | 19 +++++++++++++++++++
1 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
index f217564..e269ad7 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
@@ -750,6 +750,22 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct eth_driver *eth_drv,
return 0;
}
+static void ixgbevf_get_queue_num(struct ixgbe_hw *hw)
+{
+ /* Traffic classes are not supported by now */
+ unsigned int tcs, tc;
+
+ /*
+ * Must let PF know we are at mailbox API 11 level.
+ * Otherwise PF won't answer properly.
+ * In case that PF fails to provide Rx/Tx queue number,
+ * max_tx_queues and max_rx_queues remain to be 1.
+ */
+ if (!ixgbevf_negotiate_api_version(hw, ixgbe_mbox_api_11))
+ ixgbevf_get_queues(hw, &tcs, &tc);
+}
+
+
/*
* Virtual Function device init
*/
@@ -818,6 +834,9 @@ eth_ixgbevf_dev_init(__attribute__((unused)) struct eth_driver *eth_drv,
return (diag);
}
+ /* Get Rx/Tx queue count via mailbox, which is ready after reset_hw */
+ ixgbevf_get_queue_num(hw);
+
/* Allocate memory for storing MAC addresses */
eth_dev->data->mac_addrs = rte_zmalloc("ixgbevf", ETHER_ADDR_LEN *
hw->mac.num_rar_entries, 0);
--
1.7.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* Re: [PATCH] ixgbe: query assignment of queues to VF
[not found] ` <1382364674-27098-1-git-send-email-jigsaw-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
@ 2013-10-23 9:19 ` Thomas Monjalon
[not found] ` <201310231119.04536.thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
0 siblings, 1 reply; 10+ messages in thread
From: Thomas Monjalon @ 2013-10-23 9:19 UTC (permalink / raw)
To: Qinglai Xiao; +Cc: dev-VfR2kkLFssw
21/10/2013 16:11, Qinglai Xiao :
> Physical Function assignes Tx/Rx queues to each VF according to
> different schemes[1]. By querying through mailbox, VF is able to
> get number of Tx/Rx queues assigned to it.
>
> Note that current Intel ixgbe driver ixgbe-3.18.7 does not fully
> support mailbox message IXGBE_VF_GET_QUEUES. The service routine
> for IXGBE_VF_GET_QUEUES must be fixed, otherwise PF always return
> 1 as Tx/Rx queue number.
>
> [1] See section 7.2.1.2.1, 7.1.2.2 and 7.10.2.7.2 of Intel 82599 10
> Gbe Controller Datasheet.
>
> Signed-off-by: Qinglai Xiao <jigsaw-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Acked and applied with light modifications:
- * Must let PF know we are at mailbox API 11 level.
+ * Must let PF know we are at mailbox API version 1.1.
> +}
> +
> +
> /*
> * Virtual Function device init
Only 1 empty line is sufficient here.
Thanks for your patch.
Please, keep us informed about the needed PF patch.
--
Thomas
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH] ixgbe: query assignment of queues to VF
[not found] ` <201310231119.04536.thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
@ 2013-10-23 12:26 ` jigsaw
[not found] ` <CAHVfvh5DmT7jdUuze9L4Dqg6bBtRkE0aKKw_frXwnkGKT03jkg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
0 siblings, 1 reply; 10+ messages in thread
From: jigsaw @ 2013-10-23 12:26 UTC (permalink / raw)
To: Thomas Monjalon; +Cc: dev-VfR2kkLFssw
Hi Thomas,
>>Please, keep us informed about the needed PF patch.
First of all, where and how should I post the patch to PF driver?
And secondly I have only 82599, so I cannot run test for 82598 and
X540. Is it possible that you could test on different NIC?
thx &
rgds,
-ql
On Wed, Oct 23, 2013 at 12:19 PM, Thomas Monjalon
<thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org> wrote:
> 21/10/2013 16:11, Qinglai Xiao :
>> Physical Function assignes Tx/Rx queues to each VF according to
>> different schemes[1]. By querying through mailbox, VF is able to
>> get number of Tx/Rx queues assigned to it.
>>
>> Note that current Intel ixgbe driver ixgbe-3.18.7 does not fully
>> support mailbox message IXGBE_VF_GET_QUEUES. The service routine
>> for IXGBE_VF_GET_QUEUES must be fixed, otherwise PF always return
>> 1 as Tx/Rx queue number.
>>
>> [1] See section 7.2.1.2.1, 7.1.2.2 and 7.10.2.7.2 of Intel 82599 10
>> Gbe Controller Datasheet.
>>
>> Signed-off-by: Qinglai Xiao <jigsaw-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>
> Acked and applied with light modifications:
>
> - * Must let PF know we are at mailbox API 11 level.
> + * Must let PF know we are at mailbox API version 1.1.
>
>> +}
>> +
>> +
>> /*
>> * Virtual Function device init
>
> Only 1 empty line is sufficient here.
>
> Thanks for your patch.
> Please, keep us informed about the needed PF patch.
> --
> Thomas
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH] ixgbe: query assignment of queues to VF
[not found] ` <CAHVfvh5DmT7jdUuze9L4Dqg6bBtRkE0aKKw_frXwnkGKT03jkg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
@ 2013-10-24 8:48 ` Thomas Monjalon
[not found] ` <201310241048.26413.thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
0 siblings, 1 reply; 10+ messages in thread
From: Thomas Monjalon @ 2013-10-24 8:48 UTC (permalink / raw)
To: jigsaw; +Cc: dev-VfR2kkLFssw
23/10/2013 14:26, jigsaw :
> First of all, where and how should I post the patch to PF driver?
You should send your patch to kernel.org via the netdev mailing list:
http://vger.kernel.org/vger-lists.html#netdev
> And secondly I have only 82599, so I cannot run test for 82598 and
> X540. Is it possible that you could test on different NIC?
I don't know if I'll have access to 82598 and X540 in the next weeks.
Is there anybody else who would like to help with tests ?
--
Thomas
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH] ixgbe: query assignment of queues to VF
[not found] ` <201310241048.26413.thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
@ 2013-10-24 9:38 ` jigsaw
0 siblings, 0 replies; 10+ messages in thread
From: jigsaw @ 2013-10-24 9:38 UTC (permalink / raw)
To: Thomas Monjalon; +Cc: dev-VfR2kkLFssw
Hi Thomas,
Thanks for your answer. I'll try to send the patch to netdev list and
let you know the result.
BTW, I double checked 82598 and find that it doesn't have mailbox at
all, meaning this patch is for 82599 and X540 only.
So the test is only needed for X540.
thx &
rgds,
-ql
On Thu, Oct 24, 2013 at 11:48 AM, Thomas Monjalon
<thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org> wrote:
> 23/10/2013 14:26, jigsaw :
>> First of all, where and how should I post the patch to PF driver?
>
> You should send your patch to kernel.org via the netdev mailing list:
> http://vger.kernel.org/vger-lists.html#netdev
>
>> And secondly I have only 82599, so I cannot run test for 82598 and
>> X540. Is it possible that you could test on different NIC?
>
> I don't know if I'll have access to 82598 and X540 in the next weeks.
> Is there anybody else who would like to help with tests ?
>
> --
> Thomas
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH] ixgbe 82599: Query assignment of queues to Virtual Function.
[not found] ` <201310211504.59791.thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
@ 2013-10-21 13:32 ` jigsaw
0 siblings, 0 replies; 10+ messages in thread
From: jigsaw @ 2013-10-21 13:32 UTC (permalink / raw)
To: Thomas Monjalon; +Cc: dev-VfR2kkLFssw
Sorry it was not on my mind. Next patch will not have any trace to GPL code. -ql
On Mon, Oct 21, 2013 at 4:04 PM, Thomas Monjalon
<thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org> wrote:
> 21/10/2013 13:28, jigsaw :
>> The ixgbevf_negotiate_api is copied from Intel's VF driver.
> [..]
>> I will make another attempt with elimination of ixgbevf_negotiate_api.
>
> Please, when sending a patch, be sure that there is no licensing issue.
> We cannot integrate GPL code in BSD files.
> By adding your "signed-off-by" line, you are certifying that the code is in the appropriate license. See "Certificate of Origin" in Linux guidelines:
> https://www.kernel.org/doc/Documentation/SubmittingPatches
>
> --
> Thomas
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH] ixgbe 82599: Query assignment of queues to Virtual Function.
[not found] ` <CAHVfvh79jQp5jUTPYHtuKf7WprMu86daa-cd8c0ffpuwMbtCrA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
@ 2013-10-21 13:04 ` Thomas Monjalon
[not found] ` <201310211504.59791.thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
0 siblings, 1 reply; 10+ messages in thread
From: Thomas Monjalon @ 2013-10-21 13:04 UTC (permalink / raw)
To: jigsaw; +Cc: dev-VfR2kkLFssw
21/10/2013 13:28, jigsaw :
> The ixgbevf_negotiate_api is copied from Intel's VF driver.
[..]
> I will make another attempt with elimination of ixgbevf_negotiate_api.
Please, when sending a patch, be sure that there is no licensing issue.
We cannot integrate GPL code in BSD files.
By adding your "signed-off-by" line, you are certifying that the code is in the appropriate license. See "Certificate of Origin" in Linux guidelines:
https://www.kernel.org/doc/Documentation/SubmittingPatches
--
Thomas
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH] ixgbe 82599: Query assignment of queues to Virtual Function.
[not found] ` <201310211036.01561.thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
@ 2013-10-21 11:28 ` jigsaw
[not found] ` <CAHVfvh79jQp5jUTPYHtuKf7WprMu86daa-cd8c0ffpuwMbtCrA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
0 siblings, 1 reply; 10+ messages in thread
From: jigsaw @ 2013-10-21 11:28 UTC (permalink / raw)
To: Thomas Monjalon; +Cc: dev-VfR2kkLFssw
Hi Thomas,
Thanks for comment.
The ixgbevf_negotiate_api is copied from Intel's VF driver. The while
loop is not quite usual, indeed. A direct call to
ixgbevf_negotiate_api_version(hw, ixgbe_mbox_api_11) is sufficient, I
think. Coz PF is supposed to be satisfied with ver 1.1.
I will make another attempt with elimination of ixgbevf_negotiate_api.
Any other comment?
thx &
rgds,
-ql
On Mon, Oct 21, 2013 at 11:36 AM, Thomas Monjalon
<thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org> wrote:
> Hi,
>
> 21/10/2013 09:09, Qinglai Xiao :
>> Physical Function assignes Tx/Rx queues to each VF according to
>> different schemes[1]. By querying through mailbox, VF is able to
>> get number of Tx/Rx queues assigned to it.
>>
>> Note that current Intel ixgbe driver ixgbe-3.18.7 does not fully
>> support mailbox message IXGBE_VF_GET_QUEUES. The service routine
>> for IXGBE_VF_GET_QUEUES must be fixed, otherwise PF always return
>> 1 as Tx/Rx queue number.
>>
>> [1] See section 7.2.1.2.1, 7.1.2.2 and 7.10.2.7.2 of Intel 82599 10
>> Gbe Controller Datasheet.
>>
>> Signed-off-by: Qinglai Xiao <jigsaw-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>> ---
>
> Thanks for the patch, your comments are clear.
>
>> +static void ixgbevf_negotiate_api(struct ixgbe_hw *hw)
>> +{
>> + int api[] = { ixgbe_mbox_api_11,
>> + ixgbe_mbox_api_10,
>> + ixgbe_mbox_api_unknown };
>> + int err = 0, idx = 0;
>> +
>> + while (api[idx] != ixgbe_mbox_api_unknown) {
>> + err = ixgbevf_negotiate_api_version(hw, api[idx]);
>> + if (!err)
>> + break;
>> + idx++;
>> + }
>> +}
>
> I have comments about the mbox API:
> 1) Why not call directly ixgbevf_negotiate_api_version for ixgbe_mbox_api_11 only ?
> It seems that only version 1.1 supports ixgbevf_get_queues.
> 2) If a loop is still needed, why not use a simple "for loop" ?
> 3) If ixgbevf_negotiate_api is still needed, I'd prefer to have "_mbx" in its name.
>
> Thank you
> --
> Thomas
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH] ixgbe 82599: Query assignment of queues to Virtual Function.
[not found] ` <1382339384-44601-1-git-send-email-jigsaw-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
@ 2013-10-21 8:36 ` Thomas Monjalon
[not found] ` <201310211036.01561.thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
0 siblings, 1 reply; 10+ messages in thread
From: Thomas Monjalon @ 2013-10-21 8:36 UTC (permalink / raw)
To: Qinglai Xiao; +Cc: dev-VfR2kkLFssw
Hi,
21/10/2013 09:09, Qinglai Xiao :
> Physical Function assignes Tx/Rx queues to each VF according to
> different schemes[1]. By querying through mailbox, VF is able to
> get number of Tx/Rx queues assigned to it.
>
> Note that current Intel ixgbe driver ixgbe-3.18.7 does not fully
> support mailbox message IXGBE_VF_GET_QUEUES. The service routine
> for IXGBE_VF_GET_QUEUES must be fixed, otherwise PF always return
> 1 as Tx/Rx queue number.
>
> [1] See section 7.2.1.2.1, 7.1.2.2 and 7.10.2.7.2 of Intel 82599 10
> Gbe Controller Datasheet.
>
> Signed-off-by: Qinglai Xiao <jigsaw-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> ---
Thanks for the patch, your comments are clear.
> +static void ixgbevf_negotiate_api(struct ixgbe_hw *hw)
> +{
> + int api[] = { ixgbe_mbox_api_11,
> + ixgbe_mbox_api_10,
> + ixgbe_mbox_api_unknown };
> + int err = 0, idx = 0;
> +
> + while (api[idx] != ixgbe_mbox_api_unknown) {
> + err = ixgbevf_negotiate_api_version(hw, api[idx]);
> + if (!err)
> + break;
> + idx++;
> + }
> +}
I have comments about the mbox API:
1) Why not call directly ixgbevf_negotiate_api_version for ixgbe_mbox_api_11 only ?
It seems that only version 1.1 supports ixgbevf_get_queues.
2) If a loop is still needed, why not use a simple "for loop" ?
3) If ixgbevf_negotiate_api is still needed, I'd prefer to have "_mbx" in its name.
Thank you
--
Thomas
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH] ixgbe 82599: Query assignment of queues to Virtual Function.
@ 2013-10-21 7:09 Qinglai Xiao
[not found] ` <1382339384-44601-1-git-send-email-jigsaw-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
0 siblings, 1 reply; 10+ messages in thread
From: Qinglai Xiao @ 2013-10-21 7:09 UTC (permalink / raw)
To: dev-VfR2kkLFssw
Physical Function assignes Tx/Rx queues to each VF according to
different schemes[1]. By querying through mailbox, VF is able to
get number of Tx/Rx queues assigned to it.
Note that current Intel ixgbe driver ixgbe-3.18.7 does not fully
support mailbox message IXGBE_VF_GET_QUEUES. The service routine
for IXGBE_VF_GET_QUEUES must be fixed, otherwise PF always return
1 as Tx/Rx queue number.
[1] See section 7.2.1.2.1, 7.1.2.2 and 7.10.2.7.2 of Intel 82599 10
Gbe Controller Datasheet.
Signed-off-by: Qinglai Xiao <jigsaw-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
lib/librte_pmd_ixgbe/ixgbe_ethdev.c | 32 ++++++++++++++++++++++++++++++++
1 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
index f217564..991e1b3 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
@@ -750,6 +750,34 @@ eth_ixgbe_dev_init(__attribute__((unused)) struct eth_driver *eth_drv,
return 0;
}
+static void ixgbevf_negotiate_api(struct ixgbe_hw *hw)
+{
+ int api[] = { ixgbe_mbox_api_11,
+ ixgbe_mbox_api_10,
+ ixgbe_mbox_api_unknown };
+ int err = 0, idx = 0;
+
+ while (api[idx] != ixgbe_mbox_api_unknown) {
+ err = ixgbevf_negotiate_api_version(hw, api[idx]);
+ if (!err)
+ break;
+ idx++;
+ }
+}
+
+static void ixgbevf_get_queue_num(struct ixgbe_hw *hw)
+{
+ /* Traffic classes are not supported by now */
+ unsigned int tcs, tc;
+
+ /*
+ * In case that PF fails to provide Rx/Tx queue number,
+ * max_tx_queues and max_rx_queues remain to be 1.
+ */
+ ixgbevf_get_queues(hw, &tcs, &tc);
+}
+
+
/*
* Virtual Function device init
*/
@@ -818,6 +846,10 @@ eth_ixgbevf_dev_init(__attribute__((unused)) struct eth_driver *eth_drv,
return (diag);
}
+ /* Get Rx/Tx queue count via mailbox, which is ready after reset_hw */
+ ixgbevf_negotiate_api(hw);
+ ixgbevf_get_queue_num(hw);
+
/* Allocate memory for storing MAC addresses */
eth_dev->data->mac_addrs = rte_zmalloc("ixgbevf", ETHER_ADDR_LEN *
hw->mac.num_rar_entries, 0);
--
1.7.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
end of thread, other threads:[~2013-10-24 9:38 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-10-21 14:11 [PATCH] ixgbe 82599: Query assignment of queues to Virtual Function Qinglai Xiao
[not found] ` <1382364674-27098-1-git-send-email-jigsaw-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2013-10-23 9:19 ` [PATCH] ixgbe: query assignment of queues to VF Thomas Monjalon
[not found] ` <201310231119.04536.thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
2013-10-23 12:26 ` jigsaw
[not found] ` <CAHVfvh5DmT7jdUuze9L4Dqg6bBtRkE0aKKw_frXwnkGKT03jkg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-10-24 8:48 ` Thomas Monjalon
[not found] ` <201310241048.26413.thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
2013-10-24 9:38 ` jigsaw
-- strict thread matches above, loose matches on Subject: below --
2013-10-21 7:09 [PATCH] ixgbe 82599: Query assignment of queues to Virtual Function Qinglai Xiao
[not found] ` <1382339384-44601-1-git-send-email-jigsaw-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2013-10-21 8:36 ` Thomas Monjalon
[not found] ` <201310211036.01561.thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
2013-10-21 11:28 ` jigsaw
[not found] ` <CAHVfvh79jQp5jUTPYHtuKf7WprMu86daa-cd8c0ffpuwMbtCrA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-10-21 13:04 ` Thomas Monjalon
[not found] ` <201310211504.59791.thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
2013-10-21 13:32 ` jigsaw
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