user/sven/linux.git/drivers/net/ipa, branch v5.13.16

net: ipa: Add missing of_node_put() in ipa_firmware_load()

2021-07-19T08:04:41Z

[ Upstream commit b244163f2c45c12053cb0291c955f892e79ed8a9 ] This node pointer is returned by of_parse_phandle() with refcount incremented in this function. of_node_put() on it before exiting this function. Reported-by: Hulk Robot Signed-off-by: Yang Yingliang Acked-by: Alex Elder Signed-off-by: David S. Miller Signed-off-by: Sasha Levin

net: ipa: memory region array is variable size

2021-05-11T23:22:37Z

IPA configuration data includes an array of memory region descriptors. That was a fixed-size array at one time, but at some point we started defining it such that it was only as big as required for a given platform. The actual number of entries in the array is recorded in the configuration data along with the array. A loop in ipa_mem_config() still assumes the array has entries for all defined memory region IDs. As a result, this loop can go past the end of the actual array and attempt to write "canary" values based on nonsensical data. Fix this, by stashing the number of entries in the array, and using that rather than IPA_MEM_COUNT in the initialization loop found in ipa_mem_config(). The only remaining use of IPA_MEM_COUNT is in a validation check to ensure configuration data doesn't have too many entries. That's fine for now. Fixes: 3128aae8c439a ("net: ipa: redefine struct ipa_mem_data") Signed-off-by: Alex Elder Signed-off-by: David S. Miller

net: ipa: fix inter-EE IRQ register definitions

2021-05-06T23:32:10Z

In gsi_irq_setup(), two registers are written with the intention of disabling inter-EE channel and event IRQs. But the wrong registers are used (and defined); the ones used are read-only registers that indicate whether the interrupt condition is present. Define the mask registers instead of the status registers, and use them to disable the inter-EE interrupt types. Fixes: 46f748ccaf01 ("net: ipa: explicitly disallow inter-EE interrupts") Signed-off-by: Alex Elder Link: https://lore.kernel.org/r/20210505223636.232527-1-elder@linaro.org Signed-off-by: Jakub Kicinski

net: ipa: optionally define firmware name via DT

2021-04-16T22:38:32Z

IPA initialization includes loading some firmware. This step is done either by the modem or by the AP under Trust Zone. If the AP loads firmware, the name of the firmware file is currently hard-coded ("ipa_fws.mdt"). Add the ability to specify the relative path of the firmware file to use in a property in the Device Tree IPA node. If the property is not found (or if any other error occurs attempting to get it), fall back to using a default relative path. Use the "old" fixed name as the default. Rename the symbol that represents this default to emphasize its purpose. Signed-off-by: Alex Elder Signed-off-by: David S. Miller

net: ipa: add IPA v4.9 configuration data

2021-04-13T22:02:25Z

Add support for the SM8350 SoC, which includes IPA version 4.9. Signed-off-by: Alex Elder Signed-off-by: David S. Miller

net: ipa: add IPA v4.11 configuration data

2021-04-11T23:49:08Z

Add support for the SC7280 SoC, which includes IPA version 4.11. Signed-off-by: Alex Elder Signed-off-by: David S. Miller

net: ipa: add IPA v4.5 configuration data

2021-04-11T23:49:08Z

Add support for the SDX55 SoC, which includes IPA version 4.5. Starting with IPA v4.5, a few of the memory regions have a different number of "canary" values; update comments in the where the region identifers are defined to accurately reflect that. I'll note three differences in SDX55 versus the other two existing platforms (SDM845 and SC7180): - SDX55 uses a 32-bit Linux kernel - SDX55 has four interconnects rather than three - SDX55 uses IPA v4.5, which uses inline checksum offload Signed-off-by: Alex Elder Signed-off-by: David S. Miller

net: ipa: disable checksum offload for IPA v4.5+

2021-04-11T23:49:08Z

Checksum offload for IPA v4.5+ is implemented differently, using "inline" offload (which uses a common header format for both upload and download offload). The IPA hardware must be programmed to enable MAP checksum offload, but the RMNet driver is responsible for interpreting checksum metadata supplied with messages. Currently, the RMNet driver does not support inline checksum offload. This support is imminent, but until it is available, do not allow newer versions of IPA to specify checksum offload for endpoints. Signed-off-by: Alex Elder Signed-off-by: David S. Miller

net: ipa: three small fixes

2021-04-10T03:57:26Z

Some time ago changes were made to stop referring to clearing the hardware pipeline as a "tag process." Fix a comment to use the newer terminology. Get rid of a pointless double-negation of the Boolean toward_ipa flag in ipa_endpoint_config(). make ipa_endpoint_exit_one() private; it's only referenced inside "ipa_endpoint.c". Signed-off-by: Alex Elder Signed-off-by: Jakub Kicinski

net: ipa: get rid of empty GSI functions

2021-04-10T03:57:25Z

There are place holder functions in the GSI code that do nothing. Remove these, knowing we can add something back in their place if they're really needed someday. Some of these are inverse functions (such as teardown to match setup). Explicitly comment that there is no inverse in these cases. Signed-off-by: Alex Elder Signed-off-by: Jakub Kicinski