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* msm: ipa3: send usb-connect from rndis-ipaSkylar Chang2018-11-12
| | | | | | | | | | | | To resolve the timing issue between usb-driver and android framework, made the change on rndis ipa to send the usb-connect msg when usb-driver connect the IPA pipes. Change-Id: I51de37bc7610cb0a94659c64146f10ed322210b2 Acked-by: Pooja Kumari <kumarip@qti.qualcomm.com> Signed-off-by: Mohammed Javid <mjavid@codeaurora.org> Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
* msm: mhi_rmnet: set ifalias to unidentified_net_dev on error from MHIPrasad Malisetty2017-08-25
| | | | | | | | | Set the ifalias status to unidentified_net_dev to indicate whether modem is connected or down CRs-Fixed:2091838 Change-Id: Ic7bac3dd1a238540f828babe641d4f6669bc96b9 Signed-off-by: Prasad Malisetty <prasadm@codeaurora.org>
* msm: mhi: initialize variables to default valuesRama Krishna Phani A2017-08-03
| | | | | | | | | Few functions have variables which might get used with out proper initialization. Initialize variables to default values. CRs-Fixed: 2087109 Change-Id: I7645940e8d466e0ef67a5b8b7702b18b160cc10f Signed-off-by: Rama Krishna Phani A <rphani@codeaurora.org>
* msm: mhi_rmnet: clean channel resources only if allocatedSujeev Dias2017-04-24
| | | | | | | | | | It's possible for MHI host to send sys error notification signal before sending channel enable notification. Attempt to cleanup resources only if netdev is allocated. CRs-Fixed: 2037971 Change-Id: I2bd1f10966a042c6f3372adff89572a5795e7daf Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
* msm: mhi_rmnet: add support for shutdown and system error notificationSujeev Dias2017-04-05
| | | | | | | | | Add support to handle system error and shutdown notification from MHI host. CRs-Fixed: 2022936 Change-Id: Id36097dffd7571490d7d53d2e496bfe024702a42 Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
* msm: mhi_rmnet: add support for dynamic interface nameSujeev Dias2017-03-20
| | | | | | | | | | mhi_rmnet support both hardware accelerated path, and software path for IP traffic. Add support to configure interface name through device tree. CRs-Fixed: 2022229 Change-Id: I8356c599ce22ae45e0f3c03272ebf50251a73a59 Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
* mhi: mhi_rmnet: pass maximum payload size to mhi during registrationSujeev Dias2017-03-11
| | | | | | | | | | MHI host require clients to provide maximum payload size during active transfer so MHI host can pre-allocate bounce buffers. CRs-Fixed: 1110280 Change-Id: I9a8fcb8dbb711cdd35dfc12b47b4381bf0985134 Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
* msm: mhi_rmnet: remove headroom reservationSujeev Dias2017-03-11
| | | | | | | | | | MHI_RMNET layer not required to reserve for IP headroom data since rmnet_data layer will create a new skb if headroom reservation is needed. CRs-Fixed: 1085031 Change-Id: Ic04e73510140e6c00ee18107a8edc9ead0b53863 Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
* mhi: core: Add support for multiple MHI devicesSujeev Dias2017-03-11
| | | | | | | | | | | | | In order to support multiple MHI devices connected to same host we have, re-organize struct mhi_device_ctxt such that all information related to device is included inside struct mhi_device_ctxt. Created an abstract power management layer to operate MHI in bus master, and slave mode. PCIe bus, device, slot are extracted from DT to identify physical device. CRs-Fixed: 1086301 Change-Id: I27a12b7412db75e4843794d80146ca7475b02fdc Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
* msm: mhi_rmnet: Keep wake when processing transferSujeev Dias2017-03-03
| | | | | | | | | Disable MHI from going into low power mode when processing inbound transfers. CRs-Fixed: 1081654 Change-Id: If8af0805501901a15981bbc6db0c92d2e040eb78 Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
* msm: mhi_rmnet: Add support for platform devicesSujeev Dias2017-03-03
| | | | | | | | | | In order to support multiple instances of mhi_rmnet net devices re-architect how the driver initialize by adding support for platform device. CRs-Fixed: 1027069 Change-Id: I038f9dcb2e9bffb2637d82fb30794f6e6d4c578c Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
* msm: mhi_rmnet: If failed, do not retry to queue UL buffersSujeev Dias2017-02-28
| | | | | | | | | | If MHI failed to queue the buffer, do not attempt to re-queue. Instead wait for transfer completion event and restart the UL queue. Change-Id: Id57db52e0eb2e5930ec228a920d109fef941389f CRs-Fixed: 1055681 Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
* mhi: rmnet: Add bg worker to allocate memorySujeev Dias2017-02-28
| | | | | | | | | | | On memory stress conditions, host could fails to allocate memory on atomic context. Schedule a background worker to allocate memory in such conditions. CRs-Fixed: 1037593 Change-Id: Ia48b31622fcb043d31d197fab0a84ab40fc5c0ba Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
* mhi: rmnet: remove debug message regarding invalid buffTony Truong2017-02-28
| | | | | | | | | | The debug message does not accurately describe the reason for rmnet to reschedule the request. CRs-Fixed: 1016968 Change-Id: I49fa6a0dbdd9dec7a36f5705b9e8d27bc7352286 Signed-off-by: Tony Truong <truong@codeaurora.org> Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
* msm: mhi: fix error handlingSujeev Dias2017-02-21
| | | | | | | | | Validate the channel prior to proceeding further. Unlock spin lock before jumping to error handler. CRs-Fixed: 1016969 Change-Id: Ie3328f878b582a333ae15f3b950c258ec42fd768 Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
* Merge "msm: mhi: fix latent issues in MHI drivers"Linux Build Service Account2017-02-11
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| * msm: mhi: fix latent issues in MHI driversTony Truong2017-02-10
| | | | | | | | | | | | | | | | | | Incorrect checks in MHI drivers may crash the system. Fix these checks so that MHI drivers will handle the errors gracefully. Change-Id: I462263799c2e76573300ed43b51e39ecba42914b Signed-off-by: Tony Truong <truong@codeaurora.org>
* | Merge "msm: rndis_ipa: Fix to incorrect state transition"Linux Build Service Account2017-02-10
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| * msm: rndis_ipa: Fix to incorrect state transitionUtkarsh Saxena2017-02-09
| | | | | | | | | | | | | | | | | | | | | | Add a spinlock to protect the state transitions in rndis ipa driver. Change-Id: Ia5eab252d9a53e6a2f4db07912967a5f466982a6 Acked-by: Chaitanya Pratapa <cpratapa@qti.qualcomm.com> Acked-by: Javid Mohammed <mjavid@qti.qualcomm.com> Signed-off-by: Utkarsh Saxena <usaxena@codeaurora.org> Signed-off-by: Sridhar Ancha <sancha@codeaurora.org>
* | msm: rndis_ipa: fix to debug file system init failureUtkarsh Saxena2017-02-09
|/ | | | | | | | | | | | Do not consider debug file system init failure as functional failure. Modify the code to proceed further driver initialization. Change-Id: I821af8970b6c2ced55d6464b8a7b56a458fa7d79 Acked-by: Javid Mohammed <mjavid@qti.qualcomm.com> Signed-off-by: Utkarsh Saxena <usaxena@codeaurora.org>
* ecm_ipa: remove redundant codeGidon Studinski2017-02-02
| | | | | | | | Remove ECM_IPA debugging capabilities which are no longer needed, nor used. CRs-Fixed: 1112912 Change-Id: I20765d84ca7351c436d39d0f10b7f7a819bcc40b Signed-off-by: Gidon Studinski <gidons@codeaurora.org>
* msm: rndis_ipa: Remove rndis_ipa loopback functionalityGhanim Fodi2017-01-03
| | | | | | | | | Rndis_ipa loopback functionality at rndis_ipa driver is a debug functionality that is not used. Change-Id: Ibbcb26d3871cffeb46b028efcf4d428e88eb9e10 CRs-fixed: 1104431 Signed-off-by: Ghanim Fodi <gfodi@codeaurora.org>
* msm: ipa3: enable rndis_ipa on msm-4.4Skylar Chang2016-05-09
| | | | | | | | | Change the feature flag to compile rndis_ipa on cobalt target with msm-4.4 kernel, also fix the compile warnings. Change-Id: I82d3dd00e003d8eab63ca6bcc3bb91d51f122606 Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
* msm: ipa: snapshot of IPA changesSkylar Chang2016-03-23
| | | | | | | | This snapshot is taken as of msm-3.18 commit d5809484b (Merge "msm: ipa: fix race condition when teardown pipe" ) Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
* msm: ipa: upstream files for ipa usb-tetheringSkylar Chang2016-03-23
| | | | Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
* mhi: Use standard kernel return codesTony Truong2016-03-23
| | | | | | | | | | Replace the MHI defined enum for return codes with kernel standard return codes. This greatly improves readability and parsing of errors by userspace clients. Change-Id: Ica47f8c3a149f23243b5fb6a4aabcdc0a36b1535 Signed-off-by: Andrei Danaila <adanaila@codeaurora.org> Signed-off-by: Tony Truong <truong@codeaurora.org>
* mhi: Enable logging based on defconfig optionTony Truong2016-03-23
| | | | | | | | | Enable logging based on MHI defconfig option. This avoids excessive logging in secondary boot image. Change-Id: Ie22d56d781feadb2d484e6117c9c25ee29aa5299 Signed-off-by: Andrei Danaila <adanaila@codeaurora.org> Signed-off-by: Tony Truong <truong@codeaurora.org>
* mhi: rmnet: Enable virtual MHI queueingAndrei Danaila2016-03-23
| | | | | | | | Enable the queueing of virtual buffers to MHI instead of buffers obtained from streaming DMA. Change-Id: I3f77c7d5d9924659ce13e454646d5a65402353cc Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
* mhi: Enable logging based on defconfig optionsAndrei Danaila2016-03-23
| | | | | | | | | MHI driver stack logging to the private IPC log buffer can be quite expensive from a MIPS perspective. Enable such MHI logging if and only if such logging is desired in defconfig. Change-Id: I4a16eedc2424d250129b1b44a91d1fa32be399f5 Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
* mhi: rmnet: Prevent NAPI disable during RXAndrei Danaila2016-03-23
| | | | | | | | | | | | When the netdev interface is released, NAPI is disabled. This condition can occur while the device is still sending RX data causing a potential kernel panic. Wait for all incoming data to be received, before releasing the interface. Change-Id: If33ff721a581fdafb9712fe3cf9243996187f09d Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
* mhi: rmnet: Enable support for overflow eventsAndrei Danaila2016-03-23
| | | | | | | | MHI RmNet will now wait for all packet fragments from MHI before sending the received packet up the network stack. Change-Id: I3f0958d029a5763e7e0b1e4ab43f17fd98583a48 Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
* mhi: rmnet: Resolve race condition during SSRAndrei Danaila2016-03-23
| | | | | | | | | Resolve a race condition whereby a buffer could be freed by the SSR handler while being operated upon by the transfer callback. Change-Id: I5e62b04166b2a8a9867047574c7232739229c911 Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
* mhi: rmnet: Enabled sanity check for LPM IOCTLAndrei Danaila2016-03-23
| | | | | | | | | Enabled sanity check for LPM IOCTL in MHI. IOCTL should not be called into MHI, if the device is not ready. CRs-Fixed: 749894 Change-Id: I52627a94e70e3b17130653b7b73a86b417807842 Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
* msm: mhi: Resolve deadlock in iface downAndrei Danaila2016-03-23
| | | | | | | | Resolve issue whereby a deadblock is encountered when trying to put the interface down. Change-Id: I757492fceff56014b28ec50307f6d84b1bb81889 Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
* msm: mhi: Prevent IRQ mask race condition in MHIAndrei Danaila2016-03-23
| | | | | | | | | Fixed a race condition in MHI RmNet where the RX interrupt could remain masked forever. CRs-Fixed: 723355 Change-Id: I9606963b8b2d6d1cb125c0bc7be8610b06f67be3 Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
* msm: mhi: Fixed race condition in rmnetAndrei Danaila2016-03-23
| | | | | | | | | | | | | Fix race condition in MHI RmNet whereby the outbound MHI ring could be empty while the network stack believes it is full. This leads to a non recoverable data stall. Add rwlock to ensure checks for full and empty conditions are atomic. CRs-Fixed: 733646 Change-Id: If54baa4be762a976d64213d0ec52e969f2497036 Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
* msm: mhi: Add MHI RmNet driverAndrei Danaila2016-03-23
Add MHI RmNet driver to support exposure of an MHI device as a network interface to the Linux networking stack. The MHI channels are exposed as a standard network interface which supports the NAPI framework. IOCTLs for setting MTU/MRU and LPM are also enabled. CRs-Fixed: 689329 Change-Id: I9540c78acccec35aff4ee4dc36241c6f08cdf04c Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
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