From 0399ff9d2b139a3a76312c97500c5b0f6597e9bf Mon Sep 17 00:00:00 2001 From: Tomasz Duszynski Date: Mon, 21 Jun 2021 17:04:18 +0200 Subject: [PATCH] common/cnxk: add BPHY CGX/RPM initialization and cleanup Add support for low level initialization and cleanup of baseband PHY CGX/RPM blocks. Initialization and cleanup are related hence are in the same patch. Signed-off-by: Tomasz Duszynski Signed-off-by: Jakub Palider Reviewed-by: Jerin Jacob --- drivers/common/cnxk/meson.build | 1 + drivers/common/cnxk/roc_api.h | 3 ++ drivers/common/cnxk/roc_bphy_cgx.c | 62 ++++++++++++++++++++++++++++++ drivers/common/cnxk/roc_bphy_cgx.h | 20 ++++++++++ drivers/common/cnxk/version.map | 2 + 5 files changed, 88 insertions(+) create mode 100644 drivers/common/cnxk/roc_bphy_cgx.c create mode 100644 drivers/common/cnxk/roc_bphy_cgx.h diff --git a/drivers/common/cnxk/meson.build b/drivers/common/cnxk/meson.build index 178bce7ab8..59975fd343 100644 --- a/drivers/common/cnxk/meson.build +++ b/drivers/common/cnxk/meson.build @@ -11,6 +11,7 @@ endif config_flag_fmt = 'RTE_LIBRTE_@0@_COMMON' deps = ['eal', 'pci', 'bus_pci', 'mbuf'] sources = files( + 'roc_bphy_cgx.c', 'roc_dev.c', 'roc_idev.c', 'roc_irq.c', diff --git a/drivers/common/cnxk/roc_api.h b/drivers/common/cnxk/roc_api.h index 67f5d13f05..256d8c68dc 100644 --- a/drivers/common/cnxk/roc_api.h +++ b/drivers/common/cnxk/roc_api.h @@ -100,4 +100,7 @@ /* Idev */ #include "roc_idev.h" +/* Baseband phy cgx */ +#include "roc_bphy_cgx.h" + #endif /* _ROC_API_H_ */ diff --git a/drivers/common/cnxk/roc_bphy_cgx.c b/drivers/common/cnxk/roc_bphy_cgx.c new file mode 100644 index 0000000000..029d4102ee --- /dev/null +++ b/drivers/common/cnxk/roc_bphy_cgx.c @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(C) 2021 Marvell. + */ + +#include "roc_api.h" + +/* + * CN10K stores number of lmacs in 4 bit filed + * in contraty to CN9K which uses only 3 bits. + * + * In theory masks should differ yet on CN9K + * bits beyond specified range contain zeros. + * + * Hence common longer mask may be used. + */ +#define CGX_CMRX_RX_LMACS 0x128 +#define CGX_CMRX_RX_LMACS_LMACS GENMASK_ULL(3, 0) + +static uint64_t +roc_bphy_cgx_read(struct roc_bphy_cgx *roc_cgx, uint64_t lmac, uint64_t offset) +{ + int shift = roc_model_is_cn10k() ? 20 : 18; + uint64_t base = (uint64_t)roc_cgx->bar0_va; + + return plt_read64(base + (lmac << shift) + offset); +} + +static unsigned int +roc_bphy_cgx_dev_id(struct roc_bphy_cgx *roc_cgx) +{ + uint64_t cgx_id = roc_model_is_cn10k() ? GENMASK_ULL(26, 24) : + GENMASK_ULL(25, 24); + + return FIELD_GET(cgx_id, roc_cgx->bar0_pa); +} + +int +roc_bphy_cgx_dev_init(struct roc_bphy_cgx *roc_cgx) +{ + uint64_t val; + + if (!roc_cgx || !roc_cgx->bar0_va || !roc_cgx->bar0_pa) + return -EINVAL; + + val = roc_bphy_cgx_read(roc_cgx, 0, CGX_CMRX_RX_LMACS); + val = FIELD_GET(CGX_CMRX_RX_LMACS_LMACS, val); + if (roc_model_is_cn9k()) + val = GENMASK_ULL(val - 1, 0); + roc_cgx->lmac_bmap = val; + roc_cgx->id = roc_bphy_cgx_dev_id(roc_cgx); + + return 0; +} + +int +roc_bphy_cgx_dev_fini(struct roc_bphy_cgx *roc_cgx) +{ + if (!roc_cgx) + return -EINVAL; + + return 0; +} diff --git a/drivers/common/cnxk/roc_bphy_cgx.h b/drivers/common/cnxk/roc_bphy_cgx.h new file mode 100644 index 0000000000..aac2c262cf --- /dev/null +++ b/drivers/common/cnxk/roc_bphy_cgx.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(C) 2021 Marvell. + */ + +#ifndef _ROC_BPHY_CGX_H_ +#define _ROC_BPHY_CGX_H_ + +#include "roc_api.h" + +struct roc_bphy_cgx { + uint64_t bar0_pa; + void *bar0_va; + uint64_t lmac_bmap; + unsigned int id; +} __plt_cache_aligned; + +__roc_api int roc_bphy_cgx_dev_init(struct roc_bphy_cgx *roc_cgx); +__roc_api int roc_bphy_cgx_dev_fini(struct roc_bphy_cgx *roc_cgx); + +#endif /* _ROC_BPHY_CGX_H_ */ diff --git a/drivers/common/cnxk/version.map b/drivers/common/cnxk/version.map index 8e67c83a62..1db4d104af 100644 --- a/drivers/common/cnxk/version.map +++ b/drivers/common/cnxk/version.map @@ -9,6 +9,8 @@ INTERNAL { cnxk_logtype_sso; cnxk_logtype_tim; cnxk_logtype_tm; + roc_bphy_cgx_dev_fini; + roc_bphy_cgx_dev_init; roc_clk_freq_get; roc_error_msg_get; roc_idev_lmt_base_addr_get; -- 2.20.1