* [edk2-platforms][PATCH 1/1] BcmGenetDxe: fix reliability issues
@ 2020-05-12 21:52 Andrei Warkentin
2020-05-12 21:57 ` [edk2-devel] " Samer El-Haj-Mahmoud
0 siblings, 1 reply; 3+ messages in thread
From: Andrei Warkentin @ 2020-05-12 21:52 UTC (permalink / raw)
To: devel; +Cc: ard.biesheuvel, leif, pete, philmd
- Failed TFTP boots
- Failed HTTP boots
The definite problem was that the incorrect PROD index was being written
TX ring. The PROD index should be the TxProdIndex (on the scale
of 0-0xffff), not the descriptor index (on the scale of 0-max descs).
The other small things were suspect (mod 0xffff is not the same as & 0xffff).
Signed-off-by: Andrei Warkentin <andrey.warkentin@gmail.com>
---
Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c | 4 ++--
Silicon/Broadcom/Drivers/Net/BcmGenetDxe/SimpleNetwork.c | 3 +--
2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c
index 4b0995e3..1c4c8527 100644
--- a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c
+++ b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c
@@ -737,7 +737,7 @@ GenetDmaTriggerTx (
GenetMmioWrite (Genet, GENET_TX_DESC_STATUS (DescIndex), DescStatus);
GenetMmioWrite (Genet, GENET_TX_DMA_PROD_INDEX (GENET_DMA_DEFAULT_QUEUE),
- (DescIndex + 1) & 0xFFFF);
+ Genet->TxProdIndex);
}
/**
@@ -764,7 +764,7 @@ GenetTxIntr (
*TxBuf = Genet->TxBuffer[Genet->TxNext];
Genet->TxQueued--;
Genet->TxNext = (Genet->TxNext + 1) % GENET_DMA_DESC_COUNT;
- Genet->TxConsIndex++;
+ Genet->TxConsIndex = (Genet->TxConsIndex + 1) & 0xFFFF;
} else {
*TxBuf = NULL;
}
diff --git a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/SimpleNetwork.c b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/SimpleNetwork.c
index 74677927..371216ca 100644
--- a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/SimpleNetwork.c
+++ b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/SimpleNetwork.c
@@ -641,9 +641,8 @@ GenetSimpleNetworkTransmit (
return Status;
}
+ Genet->TxProdIndex = (Genet->TxProdIndex + 1) & 0xFFFF;
GenetDmaTriggerTx (Genet, Desc, DmaDeviceAddress, DmaNumberOfBytes);
-
- Genet->TxProdIndex = (Genet->TxProdIndex + 1) % 0xFFFF;
Genet->TxQueued++;
EfiReleaseLock (&Genet->Lock);
--
2.17.1
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [edk2-devel] [edk2-platforms][PATCH 1/1] BcmGenetDxe: fix reliability issues
2020-05-12 21:52 [edk2-platforms][PATCH 1/1] BcmGenetDxe: fix reliability issues Andrei Warkentin
@ 2020-05-12 21:57 ` Samer El-Haj-Mahmoud
2020-05-12 22:03 ` Ard Biesheuvel
0 siblings, 1 reply; 3+ messages in thread
From: Samer El-Haj-Mahmoud @ 2020-05-12 21:57 UTC (permalink / raw)
To: devel@edk2.groups.io, andrey.warkentin@gmail.com
Cc: Ard Biesheuvel, leif@nuviainc.com, pete@akeo.ie,
philmd@redhat.com
Tested-by: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Andrei
> Warkentin via groups.io
> Sent: Tuesday, May 12, 2020 5:53 PM
> To: devel@edk2.groups.io
> Cc: Ard Biesheuvel <Ard.Biesheuvel@arm.com>; leif@nuviainc.com;
> pete@akeo.ie; philmd@redhat.com
> Subject: [edk2-devel] [edk2-platforms][PATCH 1/1] BcmGenetDxe: fix
> reliability issues
>
> - Failed TFTP boots
> - Failed HTTP boots
>
> The definite problem was that the incorrect PROD index was being written TX
> ring. The PROD index should be the TxProdIndex (on the scale of 0-0xffff),
> not the descriptor index (on the scale of 0-max descs).
>
> The other small things were suspect (mod 0xffff is not the same as & 0xffff).
>
> Signed-off-by: Andrei Warkentin <andrey.warkentin@gmail.com>
> ---
> Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c | 4 ++--
> Silicon/Broadcom/Drivers/Net/BcmGenetDxe/SimpleNetwork.c | 3 +--
> 2 files changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c
> b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c
> index 4b0995e3..1c4c8527 100644
> --- a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c
> +++ b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c
> @@ -737,7 +737,7 @@ GenetDmaTriggerTx (
> GenetMmioWrite (Genet, GENET_TX_DESC_STATUS (DescIndex),
> DescStatus);
>
> GenetMmioWrite (Genet, GENET_TX_DMA_PROD_INDEX
> (GENET_DMA_DEFAULT_QUEUE),
> - (DescIndex + 1) & 0xFFFF);
> + Genet->TxProdIndex);
> }
>
> /**
> @@ -764,7 +764,7 @@ GenetTxIntr (
> *TxBuf = Genet->TxBuffer[Genet->TxNext];
> Genet->TxQueued--;
> Genet->TxNext = (Genet->TxNext + 1) % GENET_DMA_DESC_COUNT;
> - Genet->TxConsIndex++;
> + Genet->TxConsIndex = (Genet->TxConsIndex + 1) & 0xFFFF;
> } else {
> *TxBuf = NULL;
> }
> diff --git a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/SimpleNetwork.c
> b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/SimpleNetwork.c
> index 74677927..371216ca 100644
> --- a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/SimpleNetwork.c
> +++ b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/SimpleNetwork.c
> @@ -641,9 +641,8 @@ GenetSimpleNetworkTransmit (
> return Status;
> }
>
> + Genet->TxProdIndex = (Genet->TxProdIndex + 1) & 0xFFFF;
> GenetDmaTriggerTx (Genet, Desc, DmaDeviceAddress,
> DmaNumberOfBytes);
> -
> - Genet->TxProdIndex = (Genet->TxProdIndex + 1) % 0xFFFF;
> Genet->TxQueued++;
>
> EfiReleaseLock (&Genet->Lock);
> --
> 2.17.1
>
>
>
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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [edk2-devel] [edk2-platforms][PATCH 1/1] BcmGenetDxe: fix reliability issues
2020-05-12 21:57 ` [edk2-devel] " Samer El-Haj-Mahmoud
@ 2020-05-12 22:03 ` Ard Biesheuvel
0 siblings, 0 replies; 3+ messages in thread
From: Ard Biesheuvel @ 2020-05-12 22:03 UTC (permalink / raw)
To: Samer El-Haj-Mahmoud, devel@edk2.groups.io,
andrey.warkentin@gmail.com
Cc: leif@nuviainc.com, pete@akeo.ie, philmd@redhat.com
On 5/12/20 11:57 PM, Samer El-Haj-Mahmoud wrote:
> Tested-by: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
>
Pushed as 8977ff44a573..3698b912301b
Thanks guys
>> -----Original Message-----
>> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Andrei
>> Warkentin via groups.io
>> Sent: Tuesday, May 12, 2020 5:53 PM
>> To: devel@edk2.groups.io
>> Cc: Ard Biesheuvel <Ard.Biesheuvel@arm.com>; leif@nuviainc.com;
>> pete@akeo.ie; philmd@redhat.com
>> Subject: [edk2-devel] [edk2-platforms][PATCH 1/1] BcmGenetDxe: fix
>> reliability issues
>>
>> - Failed TFTP boots
>> - Failed HTTP boots
>>
>> The definite problem was that the incorrect PROD index was being written TX
>> ring. The PROD index should be the TxProdIndex (on the scale of 0-0xffff),
>> not the descriptor index (on the scale of 0-max descs).
>>
>> The other small things were suspect (mod 0xffff is not the same as & 0xffff).
>>
>> Signed-off-by: Andrei Warkentin <andrey.warkentin@gmail.com>
>> ---
>> Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c | 4 ++--
>> Silicon/Broadcom/Drivers/Net/BcmGenetDxe/SimpleNetwork.c | 3 +--
>> 2 files changed, 3 insertions(+), 4 deletions(-)
>>
>> diff --git a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c
>> b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c
>> index 4b0995e3..1c4c8527 100644
>> --- a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c
>> +++ b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c
>> @@ -737,7 +737,7 @@ GenetDmaTriggerTx (
>> GenetMmioWrite (Genet, GENET_TX_DESC_STATUS (DescIndex),
>> DescStatus);
>>
>> GenetMmioWrite (Genet, GENET_TX_DMA_PROD_INDEX
>> (GENET_DMA_DEFAULT_QUEUE),
>> - (DescIndex + 1) & 0xFFFF);
>> + Genet->TxProdIndex);
>> }
>>
>> /**
>> @@ -764,7 +764,7 @@ GenetTxIntr (
>> *TxBuf = Genet->TxBuffer[Genet->TxNext];
>> Genet->TxQueued--;
>> Genet->TxNext = (Genet->TxNext + 1) % GENET_DMA_DESC_COUNT;
>> - Genet->TxConsIndex++;
>> + Genet->TxConsIndex = (Genet->TxConsIndex + 1) & 0xFFFF;
>> } else {
>> *TxBuf = NULL;
>> }
>> diff --git a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/SimpleNetwork.c
>> b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/SimpleNetwork.c
>> index 74677927..371216ca 100644
>> --- a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/SimpleNetwork.c
>> +++ b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/SimpleNetwork.c
>> @@ -641,9 +641,8 @@ GenetSimpleNetworkTransmit (
>> return Status;
>> }
>>
>> + Genet->TxProdIndex = (Genet->TxProdIndex + 1) & 0xFFFF;
>> GenetDmaTriggerTx (Genet, Desc, DmaDeviceAddress,
>> DmaNumberOfBytes);
>> -
>> - Genet->TxProdIndex = (Genet->TxProdIndex + 1) % 0xFFFF;
>> Genet->TxQueued++;
>>
>> EfiReleaseLock (&Genet->Lock);
>> --
>> 2.17.1
>>
>>
>>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-05-12 21:52 [edk2-platforms][PATCH 1/1] BcmGenetDxe: fix reliability issues Andrei Warkentin
2020-05-12 21:57 ` [edk2-devel] " Samer El-Haj-Mahmoud
2020-05-12 22:03 ` Ard Biesheuvel
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