kernel/linux.git/include/linux/mmc/core.h, branch v6.19.11

mmc: core: Introduce the MMC_RSP_R1B_NO_CRC response

2024-12-10T10:18:45+00:00

The R1B response type with ignoring CRC is used in the mmc_cqe_recovery(), introduce the MMC_RSP_R1B_NO_CRC response type to simplify the code. Signed-off-by: Andy-ld Lu Message-ID: <20241126125041.16071-2-andy-ld.lu@mediatek.com> Signed-off-by: Ulf Hansson

mmc: core: Drop the MMC_RSP_R1_NO_CRC response

2024-12-10T10:18:45+00:00

The MMC_RSP_R1_NO_CRC type of response is not being used by the mmc core for any commands. Let's therefore drop it, together with the corresponding code in the host drivers. Signed-off-by: Ulf Hansson Acked-by: Wolfram Sang # for TMIO Reviewed-by: Avri Altman Message-ID: <20241125132311.23939-1-ulf.hansson@linaro.org>

mmc: core: Support UHS-II card control and access

2024-10-24T12:22:24+00:00

Embed UHS-II access/control functionality into the MMC request processing flow. Signed-off-by: Jason Lai Signed-off-by: Victor Shih Message-ID: <20241018105333.4569-2-victorshihgli@gmail.com> [Ulf: A couple of cleanups and fixed sd_uhs2_power_off()] Signed-off-by: Ulf Hansson

mmc: core: Add open-ended Ext memory addressing

2024-10-14T10:29:01+00:00

For open-ended read/write - just send CMD22 before issuing the command. Reviewed-by: Adrian Hunter Signed-off-by: Avri Altman Link: https://lore.kernel.org/r/20241006051148.160278-5-avri.altman@wdc.com Signed-off-by: Ulf Hansson

mmc: core: remove left-over data structure declarations

2024-08-26T11:30:21+00:00

The last users of 'enum mmc_blk_status' and 'struct mmc_async_req' were removed by commit 126b62700386 ("mmc: core: Remove code no longer needed after the switch to blk-mq") in 2017, remove these two left-over data structures. Signed-off-by: Vladimir Zapolskiy Link: https://lore.kernel.org/r/20240823225917.2826156-1-vladimir.zapolskiy@linaro.org Signed-off-by: Ulf Hansson

mmc: core: Remove packed command leftovers

2023-12-07T13:08:44+00:00

Packed commands support was removed long time ago, but some bits got left behind. Remove them. Signed-off-by: Avri Altman Link: https://lore.kernel.org/r/20231030062226.1895692-1-avri.altman@wdc.com Signed-off-by: Ulf Hansson

mmc: core: improve API to make clear that mmc_sw_reset is for cards

2022-04-26T12:05:20+00:00

To make it unambiguous that mmc_sw_reset() is for cards and not for controllers, we make the function argument mmc_card instead of mmc_host. There are no users to convert currently. Suggested-by: Ulf Hansson Signed-off-by: Wolfram Sang Link: https://lore.kernel.org/r/20220408080045.6497-3-wsa+renesas@sang-engineering.com Signed-off-by: Ulf Hansson

mmc: core: improve API to make clear mmc_hw_reset is for cards

2022-04-08T09:00:08+00:00

To make it unambiguous that mmc_hw_reset() is for cards and not for controllers, we make the function argument mmc_card instead of mmc_host. Also, all users are converted. Suggested-by: Ulf Hansson Signed-off-by: Wolfram Sang Acked-by: Kalle Valo Link: https://lore.kernel.org/r/20220408080045.6497-2-wsa+renesas@sang-engineering.com Signed-off-by: Ulf Hansson

mmc: core: Store pointer to bio_crypt_ctx in mmc_request

2021-08-24T08:15:32+00:00

Make 'struct mmc_request' contain a pointer to the request's 'struct bio_crypt_ctx' directly, instead of extracting a 32-bit DUN from it which is a cqhci-crypto specific detail. This keeps the cqhci crypto specific details in the cqhci module, and it makes mmc_core and mmc_block ready for MMC crypto hardware that accepts the DUN and/or key in a way that is more flexible than that which will be specified by the eMMC v5.2 standard. Exynos SoCs are an example of such hardware, as their inline encryption hardware takes keys directly (it has no concept of keyslots) and supports 128-bit DUNs. Note that the 32-bit DUN length specified by the standard is very restrictive, so it is likely that more hardware will support longer DUNs despite it not following the standard. Thus, limiting the scope of the 32-bit DUN assumption to the place that actually needs it is warranted. Signed-off-by: Eric Biggers Link: https://lore.kernel.org/r/20210721154738.3966463-1-ebiggers@kernel.org Signed-off-by: Ulf Hansson

mmc: core: Add basic support for inline encryption

2021-02-01T11:02:33+00:00

In preparation for adding CQHCI crypto engine (inline encryption) support, add the code required to make mmc_core and mmc_block aware of inline encryption. Specifically: - Add a capability flag MMC_CAP2_CRYPTO to struct mmc_host. Drivers will set this if the host and driver support inline encryption. - Embed a blk_keyslot_manager in struct mmc_host. Drivers will initialize this (as a device-managed resource) if the host and driver support inline encryption. mmc_block registers this keyslot manager with the request_queue of any MMC card attached to the host. - Make mmc_block copy the crypto keyslot and crypto data unit number from struct request to struct mmc_request, so that drivers will have access to them. - If the MMC host is reset, reprogram all the keyslots to ensure that the software state stays in sync with the hardware state. Co-developed-by: Satya Tangirala Signed-off-by: Satya Tangirala Acked-by: Adrian Hunter Reviewed-by: Satya Tangirala Reviewed-and-tested-by: Peng Zhou Signed-off-by: Eric Biggers Link: https://lore.kernel.org/r/20210126001456.382989-2-ebiggers@kernel.org Signed-off-by: Ulf Hansson