1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0-or-later
39 /* KeyGen Global Registers bit field masks */
96 /* Hard-coded configuration:
97  * These values are used as hard-coded values for KeyGen configuration
98  * and they replace user selections for this hard-coded version
109  * - the value for symmetric hash usage must be in accordance with hash
111  * - according to tests performed, spreading is not working if symmetric
165  * Global Statistic Counters
166  * KeyGen Global Registers
178 	u32 fmkg_gsr;	/* 0x024: KeyGen Global Status Register */
183 	u32 fmkg_gdv0r;	/* 0x038: Global Default Value Register 0 */
184 	u32 fmkg_gdv1r;	/* 0x03C: Global Default Value Register 1 */
207 		 * Must be between 1 and 2^24-1
240  * regs: KeyGen registers
245 static int keygen_write_ar_wait(struct fman_kg_regs __iomem *regs, u32 fmkg_ar)  in keygen_write_ar_wait()  argument
247 	iowrite32be(fmkg_ar, &regs->fmkg_ar);  in keygen_write_ar_wait()
251 		fmkg_ar = ioread32be(&regs->fmkg_ar);  in keygen_write_ar_wait()
254 		return -EINVAL;  in keygen_write_ar_wait()
305  * regs: KeyGen Registers
311 static void keygen_write_sp(struct fman_kg_regs __iomem *regs, u32 sp, bool add)  in keygen_write_sp()  argument
315 	tmp = ioread32be(&regs->fmkg_pe.fmkg_pe_sp);  in keygen_write_sp()
322 	iowrite32be(tmp, &regs->fmkg_pe.fmkg_pe_sp);  in keygen_write_sp()
349  * regs: KeyGen Registers
354 static void keygen_write_cpp(struct fman_kg_regs __iomem *regs, u32 cpp)  in keygen_write_cpp()  argument
356 	iowrite32be(cpp, &regs->fmkg_pe.fmkg_pe_cpp);  in keygen_write_cpp()
363  * regs: KeyGen Registers
370 static int keygen_write_scheme(struct fman_kg_regs __iomem *regs, u8 scheme_id,  in keygen_write_scheme()  argument
378 	iowrite32be(scheme_regs->kgse_mode, &regs->fmkg_sch.kgse_mode);  in keygen_write_scheme()
379 	iowrite32be(scheme_regs->kgse_ekfc, &regs->fmkg_sch.kgse_ekfc);  in keygen_write_scheme()
380 	iowrite32be(scheme_regs->kgse_ekdv, &regs->fmkg_sch.kgse_ekdv);  in keygen_write_scheme()
381 	iowrite32be(scheme_regs->kgse_bmch, &regs->fmkg_sch.kgse_bmch);  in keygen_write_scheme()
382 	iowrite32be(scheme_regs->kgse_bmcl, &regs->fmkg_sch.kgse_bmcl);  in keygen_write_scheme()
383 	iowrite32be(scheme_regs->kgse_fqb, &regs->fmkg_sch.kgse_fqb);  in keygen_write_scheme()
384 	iowrite32be(scheme_regs->kgse_hc, &regs->fmkg_sch.kgse_hc);  in keygen_write_scheme()
385 	iowrite32be(scheme_regs->kgse_ppc, &regs->fmkg_sch.kgse_ppc);  in keygen_write_scheme()
386 	iowrite32be(scheme_regs->kgse_spc, &regs->fmkg_sch.kgse_spc);  in keygen_write_scheme()
387 	iowrite32be(scheme_regs->kgse_dv0, &regs->fmkg_sch.kgse_dv0);  in keygen_write_scheme()
388 	iowrite32be(scheme_regs->kgse_dv1, &regs->fmkg_sch.kgse_dv1);  in keygen_write_scheme()
389 	iowrite32be(scheme_regs->kgse_ccbs, &regs->fmkg_sch.kgse_ccbs);  in keygen_write_scheme()
390 	iowrite32be(scheme_regs->kgse_mv, &regs->fmkg_sch.kgse_mv);  in keygen_write_scheme()
391 	iowrite32be(scheme_regs->kgse_om, &regs->fmkg_sch.kgse_om);  in keygen_write_scheme()
392 	iowrite32be(scheme_regs->kgse_vsp, &regs->fmkg_sch.kgse_vsp);  in keygen_write_scheme()
395 		iowrite32be(scheme_regs->kgse_gec[i],  in keygen_write_scheme()
396 			    &regs->fmkg_sch.kgse_gec[i]);  in keygen_write_scheme()
400 	err = keygen_write_ar_wait(regs, ar_reg);  in keygen_write_scheme()
416  * Return: 0 on success, -EINVAL when the are no available free schemes
423 		if (!keygen->schemes[i].used) {  in get_free_scheme_id()
428 	return -EINVAL;  in get_free_scheme_id()
445 	return &keygen->schemes[scheme_id];  in get_scheme()
462 	struct fman_kg_regs __iomem *keygen_regs = keygen->keygen_regs;  in keygen_bind_port_to_schemes()
471 		return -EINVAL;  in keygen_bind_port_to_schemes()
473 	if (!scheme->used) {  in keygen_bind_port_to_schemes()
475 		return -EINVAL;  in keygen_bind_port_to_schemes()
478 	schemes_vector |= 1 << (31 - scheme_id);  in keygen_bind_port_to_schemes()
480 	ar_reg = build_ar_bind_scheme(scheme->hw_port_id, false);  in keygen_bind_port_to_schemes()
489 	ar_reg = build_ar_bind_scheme(scheme->hw_port_id, true);  in keygen_bind_port_to_schemes()
512 	struct fman_kg_regs __iomem *keygen_regs = keygen->keygen_regs;  in keygen_scheme_setup()
521 		return -EINVAL;  in keygen_scheme_setup()
523 	if (enable && scheme->used) {  in keygen_scheme_setup()
525 		return -EINVAL;  in keygen_scheme_setup()
543 	scheme_regs.kgse_mv = scheme->match_vector;  in keygen_scheme_setup()
550 	/* Configure Hard-Coded Rx Hashing: */  in keygen_scheme_setup()
552 	if (scheme->use_hashing) {  in keygen_scheme_setup()
571 		tmp_reg |= ((scheme->hash_fqid_count - 1) <<  in keygen_scheme_setup()
573 		tmp_reg |= scheme->hashShift << KG_SCH_HASH_CONFIG_SHIFT_SHIFT;  in keygen_scheme_setup()
575 		if (scheme->symmetric_hash) {  in keygen_scheme_setup()
578 			 * But because extraction is hard-coded, we are sure  in keygen_scheme_setup()
594 	tmp_reg |= scheme->base_fqid;  in keygen_scheme_setup()
597 	/* features not used by hard-coded configuration */  in keygen_scheme_setup()
610 	scheme->used = enable;  in keygen_scheme_setup()
636 	keygen->keygen_regs = keygen_regs;  in keygen_init()
641 	iowrite32be(ENQUEUE_KG_DFLT_NIA, &keygen_regs->fmkg_gcr);  in keygen_init()
644 		    &keygen_regs->fmkg_eer);  in keygen_init()
646 	iowrite32be(0, &keygen_regs->fmkg_fdor);  in keygen_init()
647 	iowrite32be(0, &keygen_regs->fmkg_gdv0r);  in keygen_init()
648 	iowrite32be(0, &keygen_regs->fmkg_gdv1r);  in keygen_init()
666 	iowrite32be(0xFFFFFFFF, &keygen_regs->fmkg_seer);  in keygen_init()
667 	iowrite32be(0xFFFFFFFF, &keygen_regs->fmkg_seeer);  in keygen_init()
670 	iowrite32be(ioread32be(&keygen_regs->fmkg_gcr) | FM_KG_KGGCR_EN,  in keygen_init()
671 		    &keygen_regs->fmkg_gcr);  in keygen_init()
697 		pr_err("Base FQID must be between 1 and 2^24-1\n");  in keygen_port_hashing_init()
698 		return -EINVAL;  in keygen_port_hashing_init()
700 	if (hash_size == 0 || (hash_size & (hash_size - 1)) != 0) {  in keygen_port_hashing_init()
702 		return -EINVAL;  in keygen_port_hashing_init()
709 		return -EINVAL;  in keygen_port_hashing_init()
712 	/* Create and configure Hard-Coded Scheme: */  in keygen_port_hashing_init()
717 		return -EINVAL;  in keygen_port_hashing_init()
719 	if (scheme->used) {  in keygen_port_hashing_init()
721 		return -EINVAL;  in keygen_port_hashing_init()
730 	scheme->hw_port_id = hw_port_id;  in keygen_port_hashing_init()
731 	scheme->use_hashing = true;  in keygen_port_hashing_init()
732 	scheme->base_fqid = hash_base_fqid;  in keygen_port_hashing_init()
733 	scheme->hash_fqid_count = hash_size;  in keygen_port_hashing_init()
734 	scheme->symmetric_hash = DEFAULT_SYMMETRIC_HASH;  in keygen_port_hashing_init()
735 	scheme->hashShift = DEFAULT_HASH_SHIFT;  in keygen_port_hashing_init()
737 	/* All Schemes in hard-coded configuration  in keygen_port_hashing_init()
740 	scheme->match_vector = 0;  in keygen_port_hashing_init()