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2017-09-25crypto: caam - make aamalg_desc a proper moduleArnd Bergmann
The drivers/crypto/caam/ directory is entered during build only for building modules when CONFIG_CRYPTO_DEV_FSL_CAAM=m, but CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_DESC is defined as a 'bool' symbol, meaning that caamalg_desc.c is always compiled into built-in code, or not at all, leading to a link failure: ERROR: "cnstr_shdsc_xts_ablkcipher_decap" [drivers/crypto/caam/caamalg.ko] undefined! ERROR: "cnstr_shdsc_xts_ablkcipher_encap" [drivers/crypto/caam/caamalg.ko] undefined! ERROR: "cnstr_shdsc_aead_givencap" [drivers/crypto/caam/caamalg.ko] undefined! ERROR: "cnstr_shdsc_aead_decap" [drivers/crypto/caam/caamalg.ko] undefined! ERROR: "cnstr_shdsc_aead_encap" [drivers/crypto/caam/caamalg.ko] undefined! ERROR: "cnstr_shdsc_aead_null_decap" [drivers/crypto/caam/caamalg.ko] undefined! ERROR: "cnstr_shdsc_aead_null_encap" [drivers/crypto/caam/caamalg.ko] undefined! ERROR: "cnstr_shdsc_rfc4106_decap" [drivers/crypto/caam/caamalg.ko] undefined! ERROR: "cnstr_shdsc_rfc4106_encap" [drivers/crypto/caam/caamalg.ko] undefined! ... Making caamalg_desc itself a loadable module fixes this configuration by ensuring the driver gets built. Aside from making the symbol 'tristate', I'm adding appropriate module metadata here. Fixes: 8cea7b66b821 ("crypto: caam - refactor encryption descriptors generation") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - pass key buffers with typesafe pointersArnd Bergmann
The 'key' field is defined as a 'u64' and used for two different pieces of information: either to store a pointer or a dma_addr_t. The former leads to a build error on 32-bit machines: drivers/crypto/caam/caamalg_desc.c: In function 'cnstr_shdsc_aead_null_encap': drivers/crypto/caam/caamalg_desc.c:67:27: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] drivers/crypto/caam/caamalg_desc.c: In function 'cnstr_shdsc_aead_null_decap': drivers/crypto/caam/caamalg_desc.c:143:27: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] Using a union to provide correct types gets rid of the warnings and as well as a couple of redundant casts. Fixes: db57656b0072 ("crypto: caam - group algorithm related params") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - refactor ahash shared descriptor generationHoria Geantă
Move ahash shared descriptor generation into a single function. Currently there is no plan to support ahash on any other interface besides the Job Ring, thus for now the functionality is not exported. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - consolidate split key length computationHoria Geantă
Move split key length and padded length computation from caamalg.c and caamhash.c to key_gen.c. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - refactor encryption descriptors generationHoria Geantă
Refactor the generation of the authenc, ablkcipher shared descriptors and exports the functionality, such that they could be shared with the upcoming caam/qi (Queue Interface) driver. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - remove unneded dependencies on CRYPTO_DEV_FSL_CAAMHoria Geantă
Remove dependency on CRYPTO_DEV_FSL_CAAM where superfluous: depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR is equivalent to depends on CRYPTO_DEV_FSL_CAAM_JR since CRYPTO_DEV_FSL_CAAM_JR depends on CRYPTO_DEV_FSL_CAAM. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - rewrite some generic inline append cmdsHoria Geantă
A few descriptor commands are generated using generic inline append "append_cmd" function. Rewrite them using specific inline append functions. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - improve key inliningHoria Geantă
For authenc / stitched AEAD algorithms, check independently each of the two (authentication, encryption) keys whether inlining is possible. Prioritize the inlining of the authentication key, since the length of the (split) key is bigger than that of the encryption key. For the other algorithms, compute only once per tfm the remaining available bytes and decide whether key inlining is possible based on this. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - remove superfluous alg_op algorithm paramHoria Geantă
Information carried by alg_op can be deduced from adata->algtype plus some fixed flags. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - group algorithm related paramsHoria Geantă
In preparation of factoring out the shared descriptors, struct alginfo is introduced to group the algorithm related parameters. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - move append_key_aead() into init_sh_desc_key_aead()Horia Geantă
append_key_aead() is used in only one place, thus inline it. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - merge identical ahash_final/finup shared descHoria Geantă
Shared descriptors used by ahash_final() and ahash_finup() are identical, thus get rid of one of them (sh_desc_finup). Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - constify pointer to descriptor bufferHoria Geantă
The pointer to the descriptor buffer is not touched, it always points to start of the descriptor buffer. Thus, make it const. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - move sec4_sg_entry to sg_sw_sec4.hHoria Geantă
sec4_sg_entry structure is used only by helper functions in sg_sw_sec4.h. Since SEC HW S/G entries are to be manipulated only indirectly, via these functions, move sec4_sg_entry to the corresponding header. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25Revert "crypto: caam - get rid of tasklet"Horia Geantă
This reverts commit 66d2e2028091a074aa1290d2eeda5ddb1a6c329c. Quoting from Russell's findings: https://www.mail-archive.com/linux-crypto@vger.kernel.org/msg21136.html [quote] Okay, I've re-tested, using a different way of measuring, because using openssl speed is impractical for off-loaded engines. I've decided to use this way to measure the performance: dd if=/dev/zero bs=1048576 count=128 | /usr/bin/time openssl dgst -md5 For the threaded IRQs case gives: 0.05user 2.74system 0:05.30elapsed 52%CPU (0avgtext+0avgdata 2400maxresident)k 0.06user 2.52system 0:05.18elapsed 49%CPU (0avgtext+0avgdata 2404maxresident)k 0.12user 2.60system 0:05.61elapsed 48%CPU (0avgtext+0avgdata 2460maxresident)k => 5.36s => 25.0MB/s and the tasklet case: 0.08user 2.53system 0:04.83elapsed 54%CPU (0avgtext+0avgdata 2468maxresident)k 0.09user 2.47system 0:05.16elapsed 49%CPU (0avgtext+0avgdata 2368maxresident)k 0.10user 2.51system 0:04.87elapsed 53%CPU (0avgtext+0avgdata 2460maxresident)k => 4.95 => 27.1MB/s which corresponds to an 8% slowdown for the threaded IRQ case. So, tasklets are indeed faster than threaded IRQs. [...] I think I've proven from the above that this patch needs to be reverted due to the performance regression, and that there _is_ most definitely a deterimental effect of switching from tasklets to threaded IRQs. [/quote] Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - fix DMA API mapping leak in ablkcipher codeHoria Geantă
alkcipher_edesc_alloc() and ablkcipher_giv_edesc_alloc() don't free / unmap resources on error path: - dmap_map_sg() could fail, thus make sure the return value is checked - unmap DMA mappings in case of error Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - remove unreachable code in report_ccb_status()Horia Geantă
ERRID is a 4-bit field. Since err_id values are in [0..15] and err_id_list array size is 16, the condition "err_id < ARRAY_SIZE(err_id_list)" is always true. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - trivial code clean-upHoria Geantă
-replace offsetof with container_of -remove unused "assoc_nents", "iv_dma" from aead_edesc and fix comments -remove unused CAAM_MAX_IV_LENGTH #define Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - remove unused command from aead givencryptHoria Geantă
REG3 no longer needs to be updated, since it's not used after that. This shared descriptor command is a leftover of the conversion to AEAD interface. Fixes: 479bcc7c5b9e1 "crypto: caam - Convert authenc to new AEAD interface" Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - remove unused may_sleep in dbg_dump_sg()Horia Geantă
Fixes: 5ecf8ef9103cb "crypto: caam - fix sg dump" Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - fix smatch warningsHoria Geantă
Fix the following smatch warnings: drivers/crypto/caam/caamalg.c:2350 aead_edesc_alloc() warn: we tested 'src_nents' before and it was 'true' drivers/crypto/caam/caamrng.c:351 caam_rng_init() error: no modifiers for allocation. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - fix sparse warningsHoria Geantă
Fix the following sparse warning (note that endianness issues are not not addressed in current patch): drivers/crypto/caam/ctrl.c:388:24: warning: incorrect type in argument 1 (different address spaces) drivers/crypto/caam/ctrl.c:388:24: expected void [noderef] <asn:2>*reg drivers/crypto/caam/ctrl.c:388:24: got unsigned int *<noident> drivers/crypto/caam/ctrl.c:390:24: warning: incorrect type in argument 1 (different address spaces) drivers/crypto/caam/ctrl.c:390:24: expected void [noderef] <asn:2>*reg drivers/crypto/caam/ctrl.c:390:24: got unsigned int *<noident> drivers/crypto/caam/ctrl.c:548:24: warning: incorrect type in assignment (different address spaces) drivers/crypto/caam/ctrl.c:548:24: expected struct caam_ctrl [noderef] <asn:2>*ctrl drivers/crypto/caam/ctrl.c:548:24: got struct caam_ctrl *<noident> drivers/crypto/caam/ctrl.c:550:30: warning: cast removes address space of expression drivers/crypto/caam/ctrl.c:549:26: warning: incorrect type in assignment (different address spaces) drivers/crypto/caam/ctrl.c:549:26: expected struct caam_assurance [noderef] <asn:2>*assure drivers/crypto/caam/ctrl.c:549:26: got struct caam_assurance *<noident> drivers/crypto/caam/ctrl.c:554:28: warning: cast removes address space of expression drivers/crypto/caam/ctrl.c:553:24: warning: incorrect type in assignment (different address spaces) drivers/crypto/caam/ctrl.c:553:24: expected struct caam_deco [noderef] <asn:2>*deco drivers/crypto/caam/ctrl.c:553:24: got struct caam_deco *<noident> drivers/crypto/caam/ctrl.c:634:48: warning: cast removes address space of expression drivers/crypto/caam/ctrl.c:633:44: warning: incorrect type in assignment (different address spaces) drivers/crypto/caam/ctrl.c:633:44: expected struct caam_job_ring [noderef] <asn:2>*<noident> drivers/crypto/caam/ctrl.c:633:44: got struct caam_job_ring *<noident> drivers/crypto/caam/ctrl.c:648:34: warning: cast removes address space of expression drivers/crypto/caam/ctrl.c:647:30: warning: incorrect type in assignment (different address spaces) drivers/crypto/caam/ctrl.c:647:30: expected struct caam_queue_if [noderef] <asn:2>*qi drivers/crypto/caam/ctrl.c:647:30: got struct caam_queue_if *<noident> drivers/crypto/caam/ctrl.c:806:37: warning: incorrect type in assignment (different address spaces) drivers/crypto/caam/ctrl.c:806:37: expected void *data drivers/crypto/caam/ctrl.c:806:37: got unsigned int [noderef] <asn:2>* drivers/crypto/caam/ctrl.c:814:38: warning: incorrect type in assignment (different address spaces) drivers/crypto/caam/ctrl.c:814:38: expected void *data drivers/crypto/caam/ctrl.c:814:38: got unsigned int [noderef] <asn:2>* drivers/crypto/caam/ctrl.c:822:38: warning: incorrect type in assignment (different address spaces) drivers/crypto/caam/ctrl.c:822:38: expected void *data drivers/crypto/caam/ctrl.c:822:38: got unsigned int [noderef] <asn:2>* drivers/crypto/caam/jr.c:492:23: warning: incorrect type in assignment (different address spaces) drivers/crypto/caam/jr.c:492:23: expected struct caam_job_ring [noderef] <asn:2>*rregs drivers/crypto/caam/jr.c:492:23: got struct caam_job_ring *<noident> drivers/crypto/caam/caampkc.c:398:35: warning: Using plain integer as NULL pointer drivers/crypto/caam/caampkc.c:444:35: warning: Using plain integer as NULL pointer Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - desc.h fixesHoria Geantă
1. fix HDR_START_IDX_MASK, HDR_SD_SHARE_MASK, HDR_JD_SHARE_MASK Define HDR_START_IDX_MASK consistently with the other masks: mask = bitmask << offset 2. OP_ALG_TYPE_CLASS1 and OP_ALG_TYPE_CLASS2 must be shifted. 3. fix FIFO_STORE output data type value for AFHA S-Box 4. fix OPERATION pkha modular arithmetic source mask 5. rename LDST_SRCDST_WORD_CLASS1_ICV_SZ to LDST_SRCDST_WORD_CLASS1_IV_SZ (it refers to IV, not ICV). Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - completely remove error propagation handlingHoria Geantă
Commit 4464a7d4f53d756101291da26563f37f7fce40f3 ("crypto: caam - remove error propagation handling") removed error propagation handling only from caamalg. Do this in all other places: caamhash, caamrng. Update descriptors' lengths appropriately. Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25crypto: caam - add support for iMX6ULMarcus Folkesson
i.MX6UL does only require three clocks to enable CAAM module. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-25dpa_eth: remove unused codeMadalin Bucur
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
2017-09-25dpaa: adjust dpaa to adapt to kernel v4.9Zhao Qiang
1. add devm_alloc_percpu support 3. use register_hotcpu_notifier instead of cpuhp_setup_state_nocalls 4. remove __cpuinit 5. adjust arguments for funciton do_mmap_pgoff do_munmap Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
2017-09-25dpa: SDK DPAA 1.x Ethernet driverMadalin Bucur
commit 3399e34ee929b3498b7ae53181e29c4000e2dfa7 [sdk_dpaa part] Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Integrated-by: Zhao Qiang <qiang.zhao@nxp.com>
2017-09-25fmd: SDK DPAA 1.x FMan driverMadalin Bucur
commit 40382fa630cac60ef72149e0f2bc074501f1e4b4 [sdk_fman part] Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Integrated-by: Zhao Qiang <qiang.zhao@nxp.com>
2017-09-25fsl_qbman: SDK DPAA 1.x QBMan driversMadalin Bucur
commit 4b184a137767069ef1982c94da389f557e1681cb [qbman part] Signed-off-by: Roy Pledge <roy.pledge@nxp.com> Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Integrated-by: Zhao Qiang <qiang.zhao@nxp.com>
2017-09-25staging: fsl-mc: Management Complex restool driverIoana Ciornei
The kernel support for the restool (a user space resource management tool) is a driver for the /dev/dprc.N device file. Its purpose is to provide an ioctl interface, which the restool uses to interact with the MC bus driver and with the MC firmware. We allocate a dpmcp at driver initialization, and keep that dpmcp until driver exit. We use that dpmcp by default. If that dpmcp is in use, we create another portal at run time and destroy the newly created portal after use. The ioctl RESTOOL_SEND_MC_COMMAND sends user space command to fsl-mc bus and utilizes the fsl-mc bus to communicate with MC firmware. The ioctl RESTOOL_DPRC_SYNC request the mc-bus launch objects scan under root dprc. In order to support multiple root dprc, we utilize the bus notify mechanism to scan fsl_mc_bus_type for the newly added root dprc. After discovering the root dprc, it creates a miscdevice /dev/dprc.N to associate with this root dprc. Signed-off-by: Lijun Pan <Lijun.Pan@freescale.com> [Stuart: minor fix to resolve compile error] Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com> [Ioana: split patch to comply to Dash] Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
2017-09-25bus: fsl-mc: dpio: add frame list format supportHoria Geantă
Add support for dpaa2_fd_list format, i.e. dpaa2_fl_entry structure and accessors. Frame list entries (FLEs) are similar, but not identical to FDs: + "F" (final) bit - FMT[b'01] is reserved - DD, SC, DROPP bits (covered by "FD compatibility" field in FLE case) - FLC[5:0] not used for stashing Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
2017-09-25staging: fsl-mc: Add dpaa2_io_query APIsBogdan Purcareata
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
2017-09-25staging: fsl-mc: add support for oprRadu Alexe
Order preservation is a feature that will be supported in dpni, dpseci and dpci devices. This is a preliminary patch for the changes to be introduced in the corresponding drivers. Signed-off-by: Radu Alexe <radu.alexe@nxp.com> Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
2017-09-25bus: fsl-mc: dpio: fix alter FQ state commandHoria Geantă
When checking the response verb, the valid bit should be masked out, since its value flips depending on what Response Register (RR0 /RR1) it's been read from. Fixes: 321eecb06bfb ("bus: fsl-mc: dpio: add QBMan portal APIs for DPAA2") Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
2017-09-25staging: fsl-mc: Update eth bits in dpaa2-{fd,io}Bogdan Purcareata
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
2017-09-25staging/fsl-mc/bus/dpio: Fix missing date in CopyrightRoy Pledge
Fix missing copyright date in DPIO header Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
2017-09-25staging: fsl-mc/dpio: add cpu <--> LE conversion for dpaa2_fdHoria Geantă
While dpaa2_fd.simple structure fields are marked __leXX, corresponding cpu_to_leXX / leXX_to_cpu conversions are missing. While here, fix dpaa2_fd_{get,set}_bpid such that BMT, IVP bits sharing the 16-bit field with BPID are not affected. Fixes: d3269bdc7ebc ("bus: fsl-mc: dpio: add frame descriptor and scatter/gather APIs") Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-25bus: fsl-mc: dpio: change CENA regs to be cacheableHaiying Wang
plus non-shareable to meet the performance requirement. QMan's CENA region contains registers and structures that are 64byte in size and are inteneded to be accessed using a single 64 byte bus transaction, therefore this portal memory should be configured as cache-enabled. Also because the write allocate stash transcations of QBMan should be issued as cachable and non-coherent(non-sharable), we need to configure this region to be non-shareable. Signed-off-by: Haiying Wang <Haiying.Wang@nxp.com>
2017-09-25bus: fsl-mc: dpio: enable qbman CENA portal memory accessHaiying Wang
Once we enable the cacheable portal memory, we need to do cache flush for enqueue, vdq, buffer release, and management commands, as well as invalidate and prefetch for the valid bit of management command response and next index of dqrr. Signed-off-by: Haiying Wang <Haiying.Wang@nxp.com>
2017-09-25staging: fsl-mc: dpio: Add QBMAN_DEBUG supportBogdan Purcareata
Bulk code taken from the QorIQ SDK 2.0 GA 1703 implementation of the DPIO driver. Keeping it as an internal patch, for DPAA2 Ethernet testing purposes only, until a proper implementation will be provided by the DPIO IP owner. Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
2017-09-25bus: fsl-mc: dpio: update the copyrightHaiying Wang
Signed-off-by: Haiying Wang <Haiying.Wang@nxp.com>
2017-09-25staging: fsl-mc: increase MC_CMD_COMPLETION_TIMEOUT_MS value to 15sIoana Ciornei
With recent MC release, a timeout of 500ms is not enough in most circumstances. If MC firmware will respond faster, we should decrease this value. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
2017-09-25mc-bus: move fsl_mc_device_remove to common headerBharat Bhushan
VFIO fsl-mc driver need this function on device remove, moving this to common header file Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
2017-09-25staging fsl-mc: add device binding path 'driver_override'Bharat Bhushan
This patch is required for vfio-fsl-mc meta driver to successfully bind layerscape container devices for device passthrough. This patch adds a mechanism to allow a layerscape device to specify a driver rather than a layerscape driver provide a device match. This patch is based on following proposed patches for PCI and platform devices - https://lkml.org/lkml/2014/4/8/571 :- For Platform devices - http://lists-archives.com/linux-kernel/28030441-pci-introduce-new-device-binding-path-using-pci_dev-driver_override.html :- For PCI devices Example to allow a device (dprc.1) to specifically bind with driver (vfio-fsl-mc):- - echo vfio-fsl-mc > /sys/bus/fsl-mc/devices/dprc.1/driver_override - echo dprc.1 > /sys/bus/fsl-mc/drivers/fsl_mc_dprc/unbind - echo dprc.1 > /sys/bus/fsl-mc/drivers/vfio-fsl-mc/bind Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
2017-09-25staging: fsl-mc: Propagate driver_override for a child DPRC's childrenBharat Bhushan
When a child DPRC is bound to the vfio_fsl_mc driver via driver_override, its own children should not be bound to corresponding host kernel drivers, but instead should be bound to the vfio_fsl_mc driver as well. Currently, when a child container is scanned by the vfio_fsl_mc driver, child devices found are automatically bound to corresponding host kernel drivers (e.g., DPMCP and DPBP objects are bound to the fsl_mc_allocator driver, DPNI objects are bound to the ldpaa_eth driver, etc), Then, the user has to manually unbind these child devices from their drivers, set the driver_override sysfs attribute to vfio_fsl_mc driver, for each of them and rebind them. Signed-off-by: J. German Rivera <German.Rivera@freescale.com> Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com> Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
2017-09-25staging fsl-mc: Add dprc-reset-container supportBharat Bhushan
DPRC-reset is required for VFIO and is missing from mc-bus support available on Linux4.9. This patch added reset-container support. Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
2017-09-25fsl-mc: Add API to get iommu_group for devices on fsl-mc busNipun Gupta
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
2017-09-25staging: fsl-mc: Configure the SMMU using 'iommu-map' DT propertyNipun Gupta
fsl-mc devices needs to configure SMMU driver using the 'iommu-map' property. They first create the iommu_fwspec and then populate it with the stream-id and smr mask before the device gets registered with the SMMU driver. Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
2017-07-14Docs: dt: add fsl-mc iommu-map device-tree bindingNipun Gupta
The existing IOMMU bindings cannot be used to specify the relationship between fsl-mc devices and IOMMUs. This patch adds a generic binding for mapping fsl-mc devices to IOMMUs, using iommu-map property. Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com> Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
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