[v3,1/6] fpga: generalize updating the card

Message ID	20210524162740.2221114-1-trix@redhat.com (mailing list archive)
State	New
Headers	show Return-Path: <linux-fpga-owner@kernel.org> From: trix@redhat.com To: mdf@kernel.org, hao.wu@intel.com, michal.simek@xilinx.com Cc: linux-fpga@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Tom Rix <trix@redhat.com> Subject: [PATCH v3 1/6] fpga: generalize updating the card Date: Mon, 24 May 2021 09:27:40 -0700 Message-Id: <20210524162740.2221114-1-trix@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	generalize fpga_mgr_load \| expand [v3,0/6] generalize fpga_mgr_load [v3,1/6] fpga: generalize updating the card [v3,2/6] fpga: add FPGA_MGR_REIMAGE flag [v3,3/6] fpga: pass fpga_manager_update_ops to the fpga_manager_write functions [v3,4/6] fpga: defer checking for update ops until they are used [v3,5/6] fpga: use reimage ops in fpga_mgr_load() [v3,6/6] fpga: dfl: stub in reimaging

diff --git a/drivers/fpga/altera-cvp.c b/drivers/fpga/altera-cvp.c index 4e0edb60bfba6..e107651f89bbd 100644 --- a/drivers/fpga/altera-cvp.c +++ b/drivers/fpga/altera-cvp.c @@ -516,10 +516,10 @@ static int altera_cvp_write_complete(struct fpga_manager *mgr, } static const struct fpga_manager_ops altera_cvp_ops = { - .state = altera_cvp_state, - .write_init = altera_cvp_write_init, - .write = altera_cvp_write, - .write_complete = altera_cvp_write_complete, + .state = altera_cvp_state, + .reconfig.write_init = altera_cvp_write_init, + .reconfig.write = altera_cvp_write, + .reconfig.write_complete = altera_cvp_write_complete, }; static const struct cvp_priv cvp_priv_v1 = { diff --git a/drivers/fpga/altera-pr-ip-core.c b/drivers/fpga/altera-pr-ip-core.c index 5b130c4d98829..3385587679d5b 100644 --- a/drivers/fpga/altera-pr-ip-core.c +++ b/drivers/fpga/altera-pr-ip-core.c @@ -167,10 +167,10 @@ static int alt_pr_fpga_write_complete(struct fpga_manager *mgr, } static const struct fpga_manager_ops alt_pr_ops = { - .state = alt_pr_fpga_state, - .write_init = alt_pr_fpga_write_init, - .write = alt_pr_fpga_write, - .write_complete = alt_pr_fpga_write_complete, + .state = alt_pr_fpga_state, + .reconfig.write_init = alt_pr_fpga_write_init, + .reconfig.write = alt_pr_fpga_write, + .reconfig.write_complete = alt_pr_fpga_write_complete, }; int alt_pr_register(struct device *dev, void __iomem *reg_base) diff --git a/drivers/fpga/altera-ps-spi.c b/drivers/fpga/altera-ps-spi.c index 23bfd4d1ad0f7..2b01a3c53d374 100644 --- a/drivers/fpga/altera-ps-spi.c +++ b/drivers/fpga/altera-ps-spi.c @@ -231,10 +231,10 @@ static int altera_ps_write_complete(struct fpga_manager *mgr, } static const struct fpga_manager_ops altera_ps_ops = { - .state = altera_ps_state, - .write_init = altera_ps_write_init, - .write = altera_ps_write, - .write_complete = altera_ps_write_complete, + .state = altera_ps_state, + .reconfig.write_init = altera_ps_write_init, + .reconfig.write = altera_ps_write, + .reconfig.write_complete = altera_ps_write_complete, }; static const struct altera_ps_data *id_to_data(const struct spi_device_id *id) diff --git a/drivers/fpga/dfl-fme-mgr.c b/drivers/fpga/dfl-fme-mgr.c index d5861d13b3069..89913d27d877c 100644 --- a/drivers/fpga/dfl-fme-mgr.c +++ b/drivers/fpga/dfl-fme-mgr.c @@ -265,11 +265,11 @@ static u64 fme_mgr_status(struct fpga_manager *mgr) } static const struct fpga_manager_ops fme_mgr_ops = { - .write_init = fme_mgr_write_init, - .write = fme_mgr_write, - .write_complete = fme_mgr_write_complete, - .state = fme_mgr_state, - .status = fme_mgr_status, + .state = fme_mgr_state, + .status = fme_mgr_status, + .reconfig.write_init = fme_mgr_write_init, + .reconfig.write = fme_mgr_write, + .reconfig.write_complete = fme_mgr_write_complete, }; static void fme_mgr_get_compat_id(void __iomem *fme_pr, diff --git a/drivers/fpga/fpga-mgr.c b/drivers/fpga/fpga-mgr.c index b85bc47c91a9a..e3fc1b0bd7181 100644 --- a/drivers/fpga/fpga-mgr.c +++ b/drivers/fpga/fpga-mgr.c @@ -83,9 +83,9 @@ static int fpga_mgr_write_init_buf(struct fpga_manager *mgr, mgr->state = FPGA_MGR_STATE_WRITE_INIT; if (!mgr->mops->initial_header_size) - ret = mgr->mops->write_init(mgr, info, NULL, 0); + ret = mgr->mops->reconfig.write_init(mgr, info, NULL, 0); else - ret = mgr->mops->write_init( + ret = mgr->mops->reconfig.write_init( mgr, info, buf, min(mgr->mops->initial_header_size, count)); if (ret) { @@ -147,7 +147,7 @@ static int fpga_mgr_write_complete(struct fpga_manager *mgr, int ret; mgr->state = FPGA_MGR_STATE_WRITE_COMPLETE; - ret = mgr->mops->write_complete(mgr, info); + ret = mgr->mops->reconfig.write_complete(mgr, info); if (ret) { dev_err(&mgr->dev, "Error after writing image data to FPGA\n"); mgr->state = FPGA_MGR_STATE_WRITE_COMPLETE_ERR; @@ -187,14 +187,14 @@ static int fpga_mgr_buf_load_sg(struct fpga_manager *mgr, /* Write the FPGA image to the FPGA. */ mgr->state = FPGA_MGR_STATE_WRITE; - if (mgr->mops->write_sg) { - ret = mgr->mops->write_sg(mgr, sgt); + if (mgr->mops->reconfig.write_sg) { + ret = mgr->mops->reconfig.write_sg(mgr, sgt); } else { struct sg_mapping_iter miter; sg_miter_start(&miter, sgt->sgl, sgt->nents, SG_MITER_FROM_SG); while (sg_miter_next(&miter)) { - ret = mgr->mops->write(mgr, miter.addr, miter.length); + ret = mgr->mops->reconfig.write(mgr, miter.addr, miter.length); if (ret) break; } @@ -224,7 +224,7 @@ static int fpga_mgr_buf_load_mapped(struct fpga_manager *mgr, * Write the FPGA image to the FPGA. */ mgr->state = FPGA_MGR_STATE_WRITE; - ret = mgr->mops->write(mgr, buf, count); + ret = mgr->mops->reconfig.write(mgr, buf, count); if (ret) { dev_err(&mgr->dev, "Error while writing image data to FPGA\n"); mgr->state = FPGA_MGR_STATE_WRITE_ERR; @@ -264,7 +264,7 @@ static int fpga_mgr_buf_load(struct fpga_manager *mgr, * contiguous kernel buffer and the driver doesn't require SG, non-SG * drivers will still work on the slow path. */ - if (mgr->mops->write) + if (mgr->mops->reconfig.write) return fpga_mgr_buf_load_mapped(mgr, info, buf, count); /* @@ -568,9 +568,10 @@ struct fpga_manager *fpga_mgr_create(struct device *dev, const char *name, struct fpga_manager *mgr; int id, ret; - if (!mops || !mops->write_complete || !mops->state || - !mops->write_init || (!mops->write && !mops->write_sg) || - (mops->write && mops->write_sg)) { + if (!mops || !mops->reconfig.write_complete || !mops->state || + !mops->reconfig.write_init || (!mops->reconfig.write && + !mops->reconfig.write_sg) || + (mops->reconfig.write && mops->reconfig.write_sg)) { dev_err(dev, "Attempt to register without fpga_manager_ops\n"); return NULL; } diff --git a/drivers/fpga/ice40-spi.c b/drivers/fpga/ice40-spi.c index 69dec5af23c36..3bdc3fe8ece97 100644 --- a/drivers/fpga/ice40-spi.c +++ b/drivers/fpga/ice40-spi.c @@ -126,10 +126,10 @@ static int ice40_fpga_ops_write_complete(struct fpga_manager *mgr, } static const struct fpga_manager_ops ice40_fpga_ops = { - .state = ice40_fpga_ops_state, - .write_init = ice40_fpga_ops_write_init, - .write = ice40_fpga_ops_write, - .write_complete = ice40_fpga_ops_write_complete, + .state = ice40_fpga_ops_state, + .reconfig.write_init = ice40_fpga_ops_write_init, + .reconfig.write = ice40_fpga_ops_write, + .reconfig.write_complete = ice40_fpga_ops_write_complete, }; static int ice40_fpga_probe(struct spi_device *spi) diff --git a/drivers/fpga/machxo2-spi.c b/drivers/fpga/machxo2-spi.c index 114a64d2b7a4d..8b860e9a19c92 100644 --- a/drivers/fpga/machxo2-spi.c +++ b/drivers/fpga/machxo2-spi.c @@ -350,10 +350,10 @@ static int machxo2_write_complete(struct fpga_manager *mgr, } static const struct fpga_manager_ops machxo2_ops = { - .state = machxo2_spi_state, - .write_init = machxo2_write_init, - .write = machxo2_write, - .write_complete = machxo2_write_complete, + .state = machxo2_spi_state, + .reconfig.write_init = machxo2_write_init, + .reconfig.write = machxo2_write, + .reconfig.write_complete = machxo2_write_complete, }; static int machxo2_spi_probe(struct spi_device *spi) diff --git a/drivers/fpga/socfpga-a10.c b/drivers/fpga/socfpga-a10.c index 573d88bdf7307..e60bf844b4c40 100644 --- a/drivers/fpga/socfpga-a10.c +++ b/drivers/fpga/socfpga-a10.c @@ -458,11 +458,11 @@ static enum fpga_mgr_states socfpga_a10_fpga_state(struct fpga_manager *mgr) } static const struct fpga_manager_ops socfpga_a10_fpga_mgr_ops = { - .initial_header_size = (RBF_DECOMPRESS_OFFSET + 1) * 4, - .state = socfpga_a10_fpga_state, - .write_init = socfpga_a10_fpga_write_init, - .write = socfpga_a10_fpga_write, - .write_complete = socfpga_a10_fpga_write_complete, + .initial_header_size = (RBF_DECOMPRESS_OFFSET + 1) * 4, + .state = socfpga_a10_fpga_state, + .reconfig.write_init = socfpga_a10_fpga_write_init, + .reconfig.write = socfpga_a10_fpga_write, + .reconfig.write_complete = socfpga_a10_fpga_write_complete, }; static int socfpga_a10_fpga_probe(struct platform_device *pdev) diff --git a/drivers/fpga/socfpga.c b/drivers/fpga/socfpga.c index 1f467173fc1f3..cc752a3f742c2 100644 --- a/drivers/fpga/socfpga.c +++ b/drivers/fpga/socfpga.c @@ -534,10 +534,10 @@ static enum fpga_mgr_states socfpga_fpga_ops_state(struct fpga_manager *mgr) } static const struct fpga_manager_ops socfpga_fpga_ops = { - .state = socfpga_fpga_ops_state, - .write_init = socfpga_fpga_ops_configure_init, - .write = socfpga_fpga_ops_configure_write, - .write_complete = socfpga_fpga_ops_configure_complete, + .state = socfpga_fpga_ops_state, + .reconfig.write_init = socfpga_fpga_ops_configure_init, + .reconfig.write = socfpga_fpga_ops_configure_write, + .reconfig.write_complete = socfpga_fpga_ops_configure_complete, }; static int socfpga_fpga_probe(struct platform_device *pdev) diff --git a/drivers/fpga/stratix10-soc.c b/drivers/fpga/stratix10-soc.c index 657a70c5fc996..37e90ec0704c6 100644 --- a/drivers/fpga/stratix10-soc.c +++ b/drivers/fpga/stratix10-soc.c @@ -394,10 +394,10 @@ static enum fpga_mgr_states s10_ops_state(struct fpga_manager *mgr) } static const struct fpga_manager_ops s10_ops = { - .state = s10_ops_state, - .write_init = s10_ops_write_init, - .write = s10_ops_write, - .write_complete = s10_ops_write_complete, + .state = s10_ops_state, + .reconfig.write_init = s10_ops_write_init, + .reconfig.write = s10_ops_write, + .reconfig.write_complete = s10_ops_write_complete, }; static int s10_probe(struct platform_device *pdev) diff --git a/drivers/fpga/ts73xx-fpga.c b/drivers/fpga/ts73xx-fpga.c index 101f016c6ed8c..ab799aa05b9a2 100644 --- a/drivers/fpga/ts73xx-fpga.c +++ b/drivers/fpga/ts73xx-fpga.c @@ -98,10 +98,10 @@ static int ts73xx_fpga_write_complete(struct fpga_manager *mgr, } static const struct fpga_manager_ops ts73xx_fpga_ops = { - .state = ts73xx_fpga_state, - .write_init = ts73xx_fpga_write_init, - .write = ts73xx_fpga_write, - .write_complete = ts73xx_fpga_write_complete, + .state = ts73xx_fpga_state, + .reconfig.write_init = ts73xx_fpga_write_init, + .reconfig.write = ts73xx_fpga_write, + .reconfig.write_complete = ts73xx_fpga_write_complete, }; static int ts73xx_fpga_probe(struct platform_device *pdev) diff --git a/drivers/fpga/xilinx-spi.c b/drivers/fpga/xilinx-spi.c index fee4d0abf6bfe..4d092f30bf700 100644 --- a/drivers/fpga/xilinx-spi.c +++ b/drivers/fpga/xilinx-spi.c @@ -214,10 +214,10 @@ static int xilinx_spi_write_complete(struct fpga_manager *mgr, } static const struct fpga_manager_ops xilinx_spi_ops = { - .state = xilinx_spi_state, - .write_init = xilinx_spi_write_init, - .write = xilinx_spi_write, - .write_complete = xilinx_spi_write_complete, + .state = xilinx_spi_state, + .reconfig.write_init = xilinx_spi_write_init, + .reconfig.write = xilinx_spi_write, + .reconfig.write_complete = xilinx_spi_write_complete, }; static int xilinx_spi_probe(struct spi_device *spi) diff --git a/drivers/fpga/zynq-fpga.c b/drivers/fpga/zynq-fpga.c index 07fa8d9ec6750..dde10f1ce1f57 100644 --- a/drivers/fpga/zynq-fpga.c +++ b/drivers/fpga/zynq-fpga.c @@ -543,11 +543,11 @@ static enum fpga_mgr_states zynq_fpga_ops_state(struct fpga_manager *mgr) } static const struct fpga_manager_ops zynq_fpga_ops = { - .initial_header_size = 128, - .state = zynq_fpga_ops_state, - .write_init = zynq_fpga_ops_write_init, - .write_sg = zynq_fpga_ops_write, - .write_complete = zynq_fpga_ops_write_complete, + .initial_header_size = 128, + .state = zynq_fpga_ops_state, + .reconfig.write_init = zynq_fpga_ops_write_init, + .reconfig.write_sg = zynq_fpga_ops_write, + .reconfig.write_complete = zynq_fpga_ops_write_complete, }; static int zynq_fpga_probe(struct platform_device *pdev) diff --git a/drivers/fpga/zynqmp-fpga.c b/drivers/fpga/zynqmp-fpga.c index 125743c9797ff..3bb9824a2a881 100644 --- a/drivers/fpga/zynqmp-fpga.c +++ b/drivers/fpga/zynqmp-fpga.c @@ -84,10 +84,10 @@ static enum fpga_mgr_states zynqmp_fpga_ops_state(struct fpga_manager *mgr) } static const struct fpga_manager_ops zynqmp_fpga_ops = { - .state = zynqmp_fpga_ops_state, - .write_init = zynqmp_fpga_ops_write_init, - .write = zynqmp_fpga_ops_write, - .write_complete = zynqmp_fpga_ops_write_complete, + .state = zynqmp_fpga_ops_state, + .reconfig.write_init = zynqmp_fpga_ops_write_init, + .reconfig.write = zynqmp_fpga_ops_write, + .reconfig.write_complete = zynqmp_fpga_ops_write_complete, }; static int zynqmp_fpga_probe(struct platform_device *pdev) diff --git a/include/linux/fpga/fpga-mgr.h b/include/linux/fpga/fpga-mgr.h index 2bc3030a69e54..50a9fea3c47ef 100644 --- a/include/linux/fpga/fpga-mgr.h +++ b/include/linux/fpga/fpga-mgr.h @@ -106,14 +106,29 @@ struct fpga_image_info { }; /** - * struct fpga_manager_ops - ops for low level fpga manager drivers - * @initial_header_size: Maximum number of bytes that should be passed into write_init - * @state: returns an enum value of the FPGA's state - * @status: returns status of the FPGA, including reconfiguration error code + * struct fpga_manager_update_ops - ops updating fpga * @write_init: prepare the FPGA to receive confuration data * @write: write count bytes of configuration data to the FPGA * @write_sg: write the scatter list of configuration data to the FPGA * @write_complete: set FPGA to operating state after writing is done + */ +struct fpga_manager_update_ops { + int (*write_init)(struct fpga_manager *mgr, + struct fpga_image_info *info, + const char *buf, size_t count); + int (*write)(struct fpga_manager *mgr, const char *buf, size_t count); + int (*write_sg)(struct fpga_manager *mgr, struct sg_table *sgt); + int (*write_complete)(struct fpga_manager *mgr, + struct fpga_image_info *info); +}; + +/** + * struct fpga_manager_ops - ops for low level fpga manager drivers + * @initial_header_size: Maximum number of bytes that should be passed into write_init + * @state: returns an enum value of the FPGA's state + * @status: returns status of the FPGA, including reconfiguration error code + * @partial_update: ops for doing partial reconfiguration + * @full_update: ops for doing a full card update, user,shell,fw ie. the works * @fpga_remove: optional: Set FPGA into a specific state during driver remove * @groups: optional attribute groups. * @@ -125,13 +140,8 @@ struct fpga_manager_ops { size_t initial_header_size; enum fpga_mgr_states (*state)(struct fpga_manager *mgr); u64 (*status)(struct fpga_manager *mgr); - int (*write_init)(struct fpga_manager *mgr, - struct fpga_image_info *info, - const char *buf, size_t count); - int (*write)(struct fpga_manager *mgr, const char *buf, size_t count); - int (*write_sg)(struct fpga_manager *mgr, struct sg_table *sgt); - int (*write_complete)(struct fpga_manager *mgr, - struct fpga_image_info *info); + struct fpga_manager_update_ops reconfig; + struct fpga_manager_update_ops reimage; void (*fpga_remove)(struct fpga_manager *mgr); const struct attribute_group **groups; };

[v3,1/6] fpga: generalize updating the card

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