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path: root/drivers/dma/fsl-dpaa2-qdma/dpdmai.c
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* dmaengine: fsl-dpaa2-qdma: Fix kernel-doc check warningFrank Li2024-04-251-1/+4
| | | | | | | | | | | | | | | Fix all kernel-doc warnings under drivers/dma/fsl-dpaa2-qdma. ./scripts/kernel-doc -v -none drivers/dma/fsl-dpaa2-qdma/* drivers/dma/fsl-dpaa2-qdma/dpdmai.c:262: warning: Function parameter or struct member 'queue_idx' not described in 'dpdmai_set_rx_queue' drivers/dma/fsl-dpaa2-qdma/dpdmai.c:339: warning: Excess function parameter 'fqid' description in 'dpdmai_get_tx_queue' ... Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202404190019.t4IhmbHh-lkp@intel.com/ Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20240418185851.3221726-1-Frank.Li@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-dpaa2-qdma: Update DPDMAI interfaces to version 3Frank Li2024-04-171-14/+34
| | | | | | | | | | | | | | | | | | | | Update the DPDMAI interfaces to support MC firmware up to 10.1x.x, which major change is to add dpaa domain id support. User space MC controller tool can create difference dpaa domain for difference virtual environment. DMA queues can map to difference service priorities. The MC command was basic compatible original one. The new command use previous reserved field. - Add queue number for dpdmai_get_tx(rx)_queue(). - Unified rx(tx)_queue_attr. - Update pad/reserved field of struct dpdmai_rsp_get_attributes and struct dpdmai_cmd_queue for new API. - Update command DPDMAI_SET(GET)_RX_QUEUE and DPDMAI_CMDID_GET_TX_QUEUE Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20240409163630.1996052-1-Frank.Li@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-dpaa2-qdma: Add dpdmai_cmd_openFrank Li2024-04-071-3/+7
| | | | | | | | | Introduce the structures dpdmai_cmd_open to maintain consistency within the API calls of the driver. Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20240320-dpaa2-v1-3-eb56e47c94ec@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-dpaa2-qdma: Remove unused function dpdmai_create()Frank Li2024-04-071-54/+0
| | | | | | | | Remove unused function dpdmai_create(); Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20240320-dpaa2-v1-2-eb56e47c94ec@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-dpaa2-qdma: Adding shutdown hookPeng Ma2020-03-021-0/+21
| | | | | | | | | | We need to ensure DMA engine could be stopped in order for kexec to start the next kernel. So add the shutdown operation support. Signed-off-by: Peng Ma <peng.ma@nxp.com> Link: https://lore.kernel.org/r/20200227042841.18358-1-peng.ma@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-dpaa2-qdma: Remove unnecessary local variables in ↵Nathan Chancellor2019-11-021-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DPDMAI_CMD_CREATE macro Clang warns: drivers/dma/fsl-dpaa2-qdma/dpdmai.c:148:25: warning: variable 'cfg' is uninitialized when used within its own initialization [-Wuninitialized] DPDMAI_CMD_CREATE(cmd, cfg); ~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/dma/fsl-dpaa2-qdma/dpdmai.c:42:24: note: expanded from macro 'DPDMAI_CMD_CREATE' typeof(_cfg) (cfg) = (_cfg); \ ~~~ ^~~~ 1 warning generated. Looking at the preprocessed source, we can see that this is true. int dpdmai_create(struct fsl_mc_io *mc_io, u32 cmd_flags, const struct dpdmai_cfg *cfg, u16 *token) { struct fsl_mc_command cmd = { 0 }; int err; cmd.header = mc_encode_cmd_header((((0x90E) << 4) | 0), cmd_flags, 0); do { typeof(cmd)(cmd) = (cmd); typeof(cfg)(cfg) = (cfg); ((cmd).params[0] |= mc_enc((8), (8), (cfg)->priorities[0])); ((cmd).params[0] |= mc_enc((16), (8), (cfg)->priorities[1])); } while (0); I cannot see a good reason to create another version of cfg when the parameter one will work perfectly fine and cmd can just be used as is. Remove them to fix this warning. Fixes: f2835adf8afb ("dmaengine: fsl-dpaa2-qdma: Add the DPDMAI(Data Path DMA Interface) support") Link: https://github.com/ClangBuiltLinux/linux/issues/746 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Link: https://lore.kernel.org/r/20191022171648.37732-1-natechancellor@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-dpaa2-qdma: export the symbolsPeng Ma2019-10-231-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The symbols were not exported leading to error: WARNING: modpost: missing MODULE_LICENSE() in drivers/dma/fsl-dpaa2-qdma/dpdmai.o see include/linux/module.h for more information GZIP arch/arm64/boot/Image.gz ERROR: "dpdmai_enable" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_set_rx_queue" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_get_tx_queue" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_get_rx_queue" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_get_attributes" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_open" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_close" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_disable" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! ERROR: "dpdmai_reset" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined! WARNING: "HYPERVISOR_platform_op" [vmlinux] is a static EXPORT_SYMBOL_GPL make[2]: *** [__modpost] Error 1 make[1]: *** [modules] Error 2 make[1]: *** Waiting for unfinished jobs.... make: *** [sub-make] Error 2 So export it. Signed-off-by: Peng Ma <peng.ma@nxp.com> Reported-by: Anders Roxell <anders.roxell@linaro.org> Link: https://lore.kernel.org/r/20191023045617.22764-1-peng.ma@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-dpaa2-qdma: Add the DPDMAI(Data Path DMA Interface) supportPeng Ma2019-10-171-0/+366
The MC(Management Complex) exports the DPDMAI(Data Path DMA Interface) object as an interface to operate the DPAA2(Data Path Acceleration Architecture 2) qDMA Engine. The DPDMAI enables sending frame-based requests to qDMA and receiving back confirmation response on transaction completion, utilizing the DPAA2 QBMan(Queue Manager and Buffer Manager hardware) infrastructure. DPDMAI object provides up to two priorities for processing qDMA requests. The following list summarizes the DPDMAI main features and capabilities: 1. Supports up to two scheduling priorities for processing service requests. - Each DPDMAI transmit queue is mapped to one of two service priorities, allowing further prioritization in hardware between requests from different DPDMAI objects. 2. Supports up to two receive queues for incoming transaction completion confirmations. - Each DPDMAI receive queue is mapped to one of two receive priorities, allowing further prioritization between other interfaces when associating the DPDMAI receive queues to DPIO or DPCON(Data Path Concentrator) objects. 3. Supports different scheduling options for processing received packets: - Queues can be configured either in 'parked' mode (default), or attached to a DPIO object, or attached to DPCON object. 4. Allows interaction with one or more DPIO objects for dequeueing/enqueueing frame descriptors(FD) and for acquiring/releasing buffers. 5. Supports enable, disable, and reset operations. Add dpdmai to support some platforms with dpaa2 qdma engine. Signed-off-by: Peng Ma <peng.ma@nxp.com> Link: https://lore.kernel.org/r/20190930020440.7754-1-peng.ma@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
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