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Message-ID: <2246f041-3e42-4534-bf89-3630ca2426d1@ieee.org>
Date: Tue, 4 Mar 2025 10:50:15 -0600
From: Alex Elder <elder@...e.org>
To: Luca Weiss <luca.weiss@...rphone.com>, Alex Elder <elder@...nel.org>,
Andrew Lunn <andrew+netdev@...n.ch>, "David S. Miller"
<davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Cc: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] net: ipa: Enable checksum for
IPA_ENDPOINT_AP_MODEM_{RX,TX} for v4.7
On 2/27/25 4:33 AM, Luca Weiss wrote:
> Enable the checksum option for these two endpoints in order to allow
> mobile data to actually work. Without this, no packets seem to make it
> through the IPA.
>
> Fixes: b310de784bac ("net: ipa: add IPA v4.7 support")
> Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
This makes sense. The checksum option affects how outgoing
packets are formatted and incoming packets are interpreted
by the IPA hardware. So with this being wrong, I suppose
packets (one way and/or the other) might just be getting
dropped as invalid.
This looks good to me. I'm really pleased you were able to
get this working.
Reviewed-by: Alex Elder <elder@...cstar.com>
> ---
> drivers/net/ipa/data/ipa_data-v4.7.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/net/ipa/data/ipa_data-v4.7.c b/drivers/net/ipa/data/ipa_data-v4.7.c
> index e63dcf8d45567b0851393c2cea7a0d630afa20cd..41f212209993f10fee338e28027739a7402d5089 100644
> --- a/drivers/net/ipa/data/ipa_data-v4.7.c
> +++ b/drivers/net/ipa/data/ipa_data-v4.7.c
> @@ -104,6 +104,7 @@ static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = {
> .filter_support = true,
> .config = {
> .resource_group = IPA_RSRC_GROUP_SRC_UL_DL,
> + .checksum = true,
> .qmap = true,
> .status_enable = true,
> .tx = {
> @@ -127,6 +128,7 @@ static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = {
> .endpoint = {
> .config = {
> .resource_group = IPA_RSRC_GROUP_DST_UL_DL,
> + .checksum = true,
> .qmap = true,
> .aggregation = true,
> .rx = {
>
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