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From: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Johannes Berg <johannes@sipsolutions.net>,
	Alex Elder <elder@linaro.org>,
	abhishek.esse@gmail.com, Ben Chan <benchan@google.com>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	cpratapa@codeaurora.org, David Miller <davem@davemloft.net>,
	Dan Williams <dcbw@redhat.com>, DTML <devicetree@vger.kernel.org>,
	Eric Caruso <ejcaruso@google.com>,
	evgreen@chromium.org,
	Ilias Apalodimas <ilias.apalodimas@linaro.org>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	linux-arm-msm@vger.kernel.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linux-soc@vger.kernel.org, Networking <netdev@vger.kernel.org>,
	syadagir@codeaurora.org
Subject: Re: [PATCH v2 00/17] net: introduce Qualcomm IPA driver
Date: Wed, 19 Jun 2019 12:47:41 -0600	[thread overview]
Message-ID: <2926e45fd7ff62fd7c4af9b338bf0caa@codeaurora.org> (raw)
In-Reply-To: <CAK8P3a3e+U85yHTeE4dHa4okLVHgBd8Kke9=FytzvMwz+wB0sQ@mail.gmail.com>

>> There is a n:1 relationship between rmnet and IPA.
>> rmnet does the de-muxing to multiple netdevs based on the mux id
>> in the MAP header for RX packets and vice versa.
> 
> Oh, so you mean that even though IPA supports multiple channels
> and multiple netdev instances for a physical device, all the
> rmnet devices end up being thrown into a single channel in IPA?
> 
> What are the other channels for in IPA? I understand that there
> is one channel for commands that is separate, while the others
> are for network devices, but that seems to make no sense if
> we only use a single channel for rmnet data.
> 

AFAIK, the other channels are for use cases like tethering.
There is only a single channel which is used for RX
data which is then de-muxed using rmnet.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

WARNING: multiple messages have this Message-ID (diff)
From: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: DTML <devicetree@vger.kernel.org>,
	syadagir@codeaurora.org, Eric Caruso <ejcaruso@google.com>,
	David Miller <davem@davemloft.net>,
	Dan Williams <dcbw@redhat.com>,
	linux-arm-msm@vger.kernel.org,
	Ilias Apalodimas <ilias.apalodimas@linaro.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	evgreen@chromium.org,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Networking <netdev@vger.kernel.org>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Alex Elder <elder@linaro.org>,
	Johannes Berg <johannes@sipsolutions.net>,
	linux-soc@vger.kernel.org, abhishek.esse@gmail.com,
	cpratapa@codeaurora.org, Ben Chan <benchan@google.com>
Subject: Re: [PATCH v2 00/17] net: introduce Qualcomm IPA driver
Date: Wed, 19 Jun 2019 12:47:41 -0600	[thread overview]
Message-ID: <2926e45fd7ff62fd7c4af9b338bf0caa@codeaurora.org> (raw)
In-Reply-To: <CAK8P3a3e+U85yHTeE4dHa4okLVHgBd8Kke9=FytzvMwz+wB0sQ@mail.gmail.com>

>> There is a n:1 relationship between rmnet and IPA.
>> rmnet does the de-muxing to multiple netdevs based on the mux id
>> in the MAP header for RX packets and vice versa.
> 
> Oh, so you mean that even though IPA supports multiple channels
> and multiple netdev instances for a physical device, all the
> rmnet devices end up being thrown into a single channel in IPA?
> 
> What are the other channels for in IPA? I understand that there
> is one channel for commands that is separate, while the others
> are for network devices, but that seems to make no sense if
> we only use a single channel for rmnet data.
> 

AFAIK, the other channels are for use cases like tethering.
There is only a single channel which is used for RX
data which is then de-muxed using rmnet.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2019-06-19 18:47 UTC|newest]

Thread overview: 227+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-31  3:53 [PATCH v2 00/17] net: introduce Qualcomm IPA driver Alex Elder
2019-05-31  3:53 ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 01/17] bitfield.h: add FIELD_MAX() and field_max() Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 02/17] dt-bindings: soc: qcom: add IPA bindings Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-06-10 22:08   ` Rob Herring
2019-06-10 22:08     ` Rob Herring
2019-06-11  2:11     ` Alex Elder
2019-06-11  2:11       ` Alex Elder
2019-07-03 15:09       ` Alex Elder
2019-07-03 15:09         ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 03/17] soc: qcom: ipa: main code Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31 21:50   ` David Miller
2019-05-31 21:50     ` David Miller
2019-05-31 22:25     ` Alex Elder
2019-05-31 22:25       ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 04/17] soc: qcom: ipa: configuration data Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 05/17] soc: qcom: ipa: clocking, interrupts, and memory Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 06/17] soc: qcom: ipa: GSI headers Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 07/17] soc: qcom: ipa: the generic software interface Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 08/17] soc: qcom: ipa: GSI transactions Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 09/17] soc: qcom: ipa: IPA interface to GSI Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 10/17] soc: qcom: ipa: IPA endpoints Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 11/17] soc: qcom: ipa: immediate commands Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 12/17] soc: qcom: ipa: IPA network device and microcontroller Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 13/17] soc: qcom: ipa: AP/modem communications Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 14/17] soc: qcom: ipa: support build of IPA code Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 15/17] MAINTAINERS: add entry for the Qualcomm IPA driver Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 16/17] arm64: dts: sdm845: add IPA information Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31  3:53 ` [PATCH v2 17/17] arm64: defconfig: enable build of IPA code Alex Elder
2019-05-31  3:53   ` Alex Elder
2019-05-31 14:58 ` [PATCH v2 00/17] net: introduce Qualcomm IPA driver Dan Williams
2019-05-31 14:58   ` Dan Williams
2019-05-31 16:36   ` Alex Elder
2019-05-31 16:36     ` Alex Elder
2019-05-31 19:19     ` Arnd Bergmann
2019-05-31 19:19       ` Arnd Bergmann
2019-05-31 20:47       ` Alex Elder
2019-05-31 20:47         ` Alex Elder
2019-05-31 21:12         ` Arnd Bergmann
2019-05-31 21:12           ` Arnd Bergmann
2019-05-31 22:08           ` Alex Elder
2019-05-31 22:08             ` Alex Elder
2019-06-07 17:43             ` Alex Elder
2019-06-07 17:43               ` Alex Elder
2019-05-31 23:33         ` Bjorn Andersson
2019-05-31 23:33           ` Bjorn Andersson
2019-05-31 23:59           ` Subash Abhinov Kasiviswanathan
2019-05-31 23:59             ` Subash Abhinov Kasiviswanathan
2019-06-03 10:04             ` Arnd Bergmann
2019-06-03 10:04               ` Arnd Bergmann
2019-06-03 13:32               ` Alex Elder
2019-06-03 13:32                 ` Alex Elder
2019-06-04  8:13                 ` Arnd Bergmann
2019-06-04  8:13                   ` Arnd Bergmann
2019-06-04 15:18                   ` Dan Williams
2019-06-04 15:18                     ` Dan Williams
2019-06-04 20:04                     ` Arnd Bergmann
2019-06-04 20:04                       ` Arnd Bergmann
2019-06-04 21:29                       ` Dan Williams
2019-06-04 21:29                         ` Dan Williams
2019-06-06 17:42                         ` Alex Elder
2019-06-06 17:42                           ` Alex Elder
2019-06-11  8:12                           ` Johannes Berg
2019-06-11  8:12                             ` Johannes Berg
2019-06-11 11:56                             ` Arnd Bergmann
2019-06-11 11:56                               ` Arnd Bergmann
2019-06-11 15:53                               ` Dan Williams
2019-06-11 15:53                                 ` Dan Williams
2019-06-11 16:52                                 ` Subash Abhinov Kasiviswanathan
2019-06-11 16:52                                   ` Subash Abhinov Kasiviswanathan
2019-06-11 17:22                                   ` Dan Williams
2019-06-11 17:22                                     ` Dan Williams
2019-06-12  8:31                                     ` Arnd Bergmann
2019-06-12  8:31                                       ` Arnd Bergmann
2019-06-12 14:27                                       ` Dan Williams
2019-06-12 14:27                                         ` Dan Williams
2019-06-12 15:06                                         ` Arnd Bergmann
2019-06-12 15:06                                           ` Arnd Bergmann
2019-06-17 11:42                                           ` Johannes Berg
2019-06-17 11:42                                             ` Johannes Berg
2019-06-17 12:25                                             ` Johannes Berg
2019-06-17 12:25                                               ` Johannes Berg
2019-06-17 12:25                                               ` Johannes Berg
2019-06-18 15:20                                               ` Alex Elder
2019-06-18 15:20                                                 ` Alex Elder
2019-06-18 18:06                                                 ` Dan Williams
2019-06-18 18:06                                                   ` Dan Williams
2019-06-24 16:21                                                   ` Alex Elder
2019-06-24 16:21                                                     ` Alex Elder
2019-06-25 14:14                                                     ` Johannes Berg
2019-06-25 14:14                                                       ` Johannes Berg
2019-06-26 13:36                                                       ` Alex Elder
2019-06-26 13:36                                                         ` Alex Elder
2019-06-26 17:55                                                         ` Johannes Berg
2019-06-26 17:55                                                           ` Johannes Berg
2019-06-26 17:55                                                           ` Johannes Berg
2019-06-18 18:48                                                 ` Johannes Berg
2019-06-18 18:48                                                   ` Johannes Berg
2019-06-24 16:21                                                   ` Alex Elder
2019-06-24 16:21                                                     ` Alex Elder
2019-06-18 13:45                                             ` Alex Elder
2019-06-18 13:45                                               ` Alex Elder
2019-06-18 19:03                                               ` Johannes Berg
2019-06-18 19:03                                                 ` Johannes Berg
2019-06-18 20:09                                                 ` Arnd Bergmann
2019-06-18 20:09                                                   ` Arnd Bergmann
2019-06-18 20:15                                                   ` Johannes Berg
2019-06-18 20:15                                                     ` Johannes Berg
2019-06-18 20:15                                                     ` Johannes Berg
2019-06-18 20:33                                                     ` Arnd Bergmann
2019-06-18 20:33                                                       ` Arnd Bergmann
2019-06-18 20:33                                                       ` Arnd Bergmann
2019-06-18 20:39                                                       ` Johannes Berg
2019-06-18 20:39                                                         ` Johannes Berg
2019-06-18 21:06                                                         ` Arnd Bergmann
2019-06-18 21:06                                                           ` Arnd Bergmann
2019-06-19 20:56                                                           ` Dan Williams
2019-06-19 20:56                                                             ` Dan Williams
2019-06-24 16:21                                                 ` Alex Elder
2019-06-24 16:21                                                   ` Alex Elder
2019-06-24 16:40                                                   ` Arnd Bergmann
2019-06-24 16:40                                                     ` Arnd Bergmann
2019-06-25 14:19                                                     ` Johannes Berg
2019-06-25 14:19                                                       ` Johannes Berg
2019-06-26 13:39                                                       ` Alex Elder
2019-06-26 13:39                                                         ` Alex Elder
2019-06-26 13:58                                                         ` Arnd Bergmann
2019-06-26 13:58                                                           ` Arnd Bergmann
2019-06-26 17:48                                                           ` Johannes Berg
2019-06-26 17:48                                                             ` Johannes Berg
2019-06-26 17:45                                                         ` Johannes Berg
2019-06-26 17:45                                                           ` Johannes Berg
2019-06-26 17:45                                                           ` Johannes Berg
2019-06-26 13:51                                                     ` Alex Elder
2019-06-26 13:51                                                       ` Alex Elder
2019-06-17 11:28                               ` Johannes Berg
2019-06-17 11:28                                 ` Johannes Berg
2019-06-17 11:28                                 ` Johannes Berg
2019-06-18 13:16                                 ` Alex Elder
2019-06-18 13:16                                   ` Alex Elder
2019-06-18 13:48                                   ` Arnd Bergmann
2019-06-18 13:48                                     ` Arnd Bergmann
2019-06-18 19:14                                   ` Johannes Berg
2019-06-18 19:14                                     ` Johannes Berg
2019-06-18 19:14                                     ` Johannes Berg
2019-06-18 19:59                                     ` Arnd Bergmann
2019-06-18 19:59                                       ` Arnd Bergmann
2019-06-18 19:59                                       ` Arnd Bergmann
2019-06-18 20:36                                       ` Johannes Berg
2019-06-18 20:36                                         ` Johannes Berg
2019-06-18 20:55                                         ` Arnd Bergmann
2019-06-18 20:55                                           ` Arnd Bergmann
2019-06-18 20:55                                           ` Arnd Bergmann
2019-06-18 21:02                                           ` Johannes Berg
2019-06-18 21:02                                             ` Johannes Berg
2019-06-18 21:02                                             ` Johannes Berg
2019-06-18 21:15                                           ` Subash Abhinov Kasiviswanathan
2019-06-18 21:15                                             ` Subash Abhinov Kasiviswanathan
2019-06-19 12:23                                             ` Arnd Bergmann
2019-06-19 12:23                                               ` Arnd Bergmann
2019-06-19 18:47                                               ` Subash Abhinov Kasiviswanathan [this message]
2019-06-19 18:47                                                 ` Subash Abhinov Kasiviswanathan
2019-06-20  1:25                                                 ` Dan Williams
2019-06-20  1:25                                                   ` Dan Williams
2019-06-20  1:25                                                   ` Dan Williams
2019-06-24 16:21                                     ` Alex Elder
2019-06-24 16:21                                       ` Alex Elder
2019-06-17 12:14                               ` Johannes Berg
2019-06-17 12:14                                 ` Johannes Berg
2019-06-18 14:00                                 ` Alex Elder
2019-06-18 14:00                                   ` Alex Elder
2019-06-18 19:22                                   ` Johannes Berg
2019-06-18 19:22                                     ` Johannes Berg
2019-06-18 19:22                                     ` Johannes Berg
2019-06-24 16:21                                     ` Alex Elder
2019-06-24 16:21                                       ` Alex Elder
2019-06-03 14:50             ` Dan Williams
2019-06-03 14:50               ` Dan Williams
2019-06-03 14:54         ` Dan Williams
2019-06-03 14:54           ` Dan Williams
2019-06-03 15:52           ` Alex Elder
2019-06-03 15:52             ` Alex Elder
2019-06-03 16:18             ` Dan Williams
2019-06-03 16:18               ` Dan Williams
2019-06-03 19:04               ` Subash Abhinov Kasiviswanathan
2019-06-03 19:04                 ` Subash Abhinov Kasiviswanathan
2019-06-04 15:21                 ` Dan Williams
2019-06-04 15:21                   ` Dan Williams
2019-05-31 23:27       ` Bjorn Andersson
2019-05-31 23:27         ` Bjorn Andersson
2019-05-31 23:27         ` Bjorn Andersson
2019-06-10  2:44 ` Alex Elder
2019-06-10  2:44   ` Alex Elder
2019-06-20 13:41 ` [PATCH v2 05/17] soc: qcom: ipa: clocking, interrupts, and memory Hillf Danton
2019-06-20 13:41   ` Hillf Danton
2019-06-24 16:30 ` WWAN Controller Framework (was IPA [PATCH v2 00/17]) Alex Elder
2019-06-24 16:30   ` Alex Elder
2019-06-24 17:06   ` Alex Elder
2019-06-24 17:06     ` Alex Elder
2019-06-25 14:34     ` Johannes Berg
2019-06-25 14:34       ` Johannes Berg
2019-06-26 13:40       ` Alex Elder
2019-06-26 13:40         ` Alex Elder
2019-06-26 17:58         ` Johannes Berg
2019-06-26 17:58           ` Johannes Berg
2019-06-24 19:54   ` Dan Williams
2019-06-24 19:54     ` Dan Williams
2019-06-24 21:16     ` Alex Elder
2019-06-24 21:16       ` Alex Elder
2019-06-24 21:16       ` Alex Elder

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