/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ /* * Copyright 2015-2016 Freescale Semiconductor Inc. * Copyright 2017-2018 NXP */ #ifndef _CAAMALG_QI2_H_ #define _CAAMALG_QI2_H_ #include <crypto/internal/skcipher.h> #include <linux/compiler_attributes.h> #include <soc/fsl/dpaa2-io.h> #include <soc/fsl/dpaa2-fd.h> #include <linux/threads.h> #include <linux/netdevice.h> #include "dpseci.h" #include "desc_constr.h" #define DPAA2_CAAM_STORE_SIZE … /* NAPI weight *must* be a multiple of the store size. */ #define DPAA2_CAAM_NAPI_WEIGHT … /* The congestion entrance threshold was chosen so that on LS2088 * we support the maximum throughput for the available memory */ #define DPAA2_SEC_CONG_ENTRY_THRESH … #define DPAA2_SEC_CONG_EXIT_THRESH … /** * dpaa2_caam_priv - driver private data * @dpseci_id: DPSECI object unique ID * @major_ver: DPSECI major version * @minor_ver: DPSECI minor version * @dpseci_attr: DPSECI attributes * @sec_attr: SEC engine attributes * @rx_queue_attr: array of Rx queue attributes * @tx_queue_attr: array of Tx queue attributes * @cscn_mem: pointer to memory region containing the congestion SCN * it's size is larger than to accommodate alignment * @cscn_dma: dma address used by the QMAN to write CSCN messages * @dev: device associated with the DPSECI object * @mc_io: pointer to MC portal's I/O object * @domain: IOMMU domain * @ppriv: per CPU pointers to privata data */ struct dpaa2_caam_priv { … }; /** * dpaa2_caam_priv_per_cpu - per CPU private data * @napi: napi structure * @net_dev: netdev used by napi * @req_fqid: (virtual) request (Tx / enqueue) FQID * @rsp_fqid: (virtual) response (Rx / dequeue) FQID * @prio: internal queue number - index for dpaa2_caam_priv.*_queue_attr * @nctx: notification context of response FQ * @store: where dequeued frames are stored * @priv: backpointer to dpaa2_caam_priv * @dpio: portal used for data path operations */ struct dpaa2_caam_priv_per_cpu { … }; /* Length of a single buffer in the QI driver memory cache */ #define CAAM_QI_MEMCACHE_SIZE … /* * aead_edesc - s/w-extended aead descriptor * @src_nents: number of segments in input scatterlist * @dst_nents: number of segments in output scatterlist * @iv_dma: dma address of iv for checking continuity and link table * @qm_sg_bytes: length of dma mapped h/w link table * @qm_sg_dma: bus physical mapped address of h/w link table * @assoclen: associated data length, in CAAM endianness * @assoclen_dma: bus physical mapped address of req->assoclen * @sgt: the h/w link table, followed by IV */ struct aead_edesc { … }; /* * skcipher_edesc - s/w-extended skcipher descriptor * @src_nents: number of segments in input scatterlist * @dst_nents: number of segments in output scatterlist * @iv_dma: dma address of iv for checking continuity and link table * @qm_sg_bytes: length of dma mapped qm_sg space * @qm_sg_dma: I/O virtual address of h/w link table * @sgt: the h/w link table, followed by IV */ struct skcipher_edesc { … }; /* * ahash_edesc - s/w-extended ahash descriptor * @qm_sg_dma: I/O virtual address of h/w link table * @src_nents: number of segments in input scatterlist * @qm_sg_bytes: length of dma mapped qm_sg space * @sgt: pointer to h/w link table */ struct ahash_edesc { … }; /** * caam_flc - Flow Context (FLC) * @flc: Flow Context options * @sh_desc: Shared Descriptor */ struct caam_flc { … } __aligned(…); enum optype { … }; /** * caam_request - the request structure the driver application should fill while * submitting a job to driver. * @fd_flt: Frame list table defining input and output * fd_flt[0] - FLE pointing to output buffer * fd_flt[1] - FLE pointing to input buffer * @fd_flt_dma: DMA address for the frame list table * @flc: Flow Context * @flc_dma: I/O virtual address of Flow Context * @cbk: Callback function to invoke when job is completed * @ctx: arbit context attached with request by the application * @edesc: extended descriptor; points to one of {skcipher,aead}_edesc */ struct caam_request { … }; /** * dpaa2_caam_enqueue() - enqueue a crypto request * @dev: device associated with the DPSECI object * @req: pointer to caam_request */ int dpaa2_caam_enqueue(struct device *dev, struct caam_request *req); #endif /* _CAAMALG_QI2_H_ */
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