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Message-Id: <DC69BFCB-B82B-4F29-8771-BE5DE266DD77@kernel.crashing.org>
Date: Thu, 12 Mar 2015 11:09:54 -0500
From: Kumar Gala <galak@...nel.crashing.org>
To: "Igal.Liberman" <igal.liberman@...escale.com>
Cc: linuxppc-dev@...ts.ozlabs.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, scottwood@...escale.com
Subject: Re: [v2,04/11] soc/fman: Add the FMan port FLIB
On Mar 11, 2015, at 12:04 AM, Igal.Liberman <igal.liberman@...escale.com> wrote:
> From: Igal Liberman <Igal.Liberman@...escale.com>
commit message?
>
> Signed-off-by: Igal Liberman <Igal.Liberman@...escale.com>
> ---
> drivers/soc/fsl/fman/Kconfig | 10 +
> drivers/soc/fsl/fman/Makefile | 2 +
> drivers/soc/fsl/fman/port/Makefile | 3 +
> drivers/soc/fsl/fman/port/fman_port.c | 1535 +++++++++++++++++++++++++++++++++
> 4 files changed, 1550 insertions(+)
> create mode 100644 drivers/soc/fsl/fman/port/Makefile
> create mode 100644 drivers/soc/fsl/fman/port/fman_port.c
Should merge this with the header patch 3/11.
Docs for the “public” functions would be good.
- k
>
> diff --git a/drivers/soc/fsl/fman/Kconfig b/drivers/soc/fsl/fman/Kconfig
> index 6e8b0a6..b4c98ef 100644
> --- a/drivers/soc/fsl/fman/Kconfig
> +++ b/drivers/soc/fsl/fman/Kconfig
> @@ -5,3 +5,13 @@ menuconfig FSL_FMAN
> help
> Freescale Data-Path Acceleration Architecture Frame Manager
> (FMan) support
> +
> +if FSL_FMAN
> +
> +config FSL_FMAN_PORT
> + bool "FMan port"
> + default n
> + help
> + Freescale DPAA FMan port support
> +
> +endif # FSL_FMAN
> diff --git a/drivers/soc/fsl/fman/Makefile b/drivers/soc/fsl/fman/Makefile
> index e7a0575..437a325 100644
> --- a/drivers/soc/fsl/fman/Makefile
> +++ b/drivers/soc/fsl/fman/Makefile
> @@ -3,3 +3,5 @@ subdir-ccflags-$(CONFIG_FSL_FMAN) += -I$(srctree)/drivers/soc/fsl/fman/flib
> obj-$(CONFIG_FSL_FMAN) += fsl_fman.o
>
> fsl_fman-objs := fman.o
> +
> +obj-$(CONFIG_FSL_FMAN_PORT) += port/
> diff --git a/drivers/soc/fsl/fman/port/Makefile b/drivers/soc/fsl/fman/port/Makefile
> new file mode 100644
> index 0000000..0062fed
> --- /dev/null
> +++ b/drivers/soc/fsl/fman/port/Makefile
> @@ -0,0 +1,3 @@
> +obj-$(CONFIG_FSL_FMAN_PORT) += fsl_fman_port.o
> +
> +fsl_fman_port-objs := fman_port.o
> diff --git a/drivers/soc/fsl/fman/port/fman_port.c b/drivers/soc/fsl/fman/port/fman_port.c
> new file mode 100644
> index 0000000..cc05dc0
> --- /dev/null
> +++ b/drivers/soc/fsl/fman/port/fman_port.c
> @@ -0,0 +1,1535 @@
> +/*
> + * Copyright 2008 - 2015 Freescale Semiconductor Inc.
> + *
> + * Redistribution and use in source and binary forms, with or without
> + * modification, are permitted provided that the following conditions are met:
> + * * Redistributions of source code must retain the above copyright
> + * notice, this list of conditions and the following disclaimer.
> + * * Redistributions in binary form must reproduce the above copyright
> + * notice, this list of conditions and the following disclaimer in the
> + * documentation and/or other materials provided with the distribution.
> + * * Neither the name of Freescale Semiconductor nor the
> + * names of its contributors may be used to endorse or promote products
> + * derived from this software without specific prior written permission.
> + *
> + * ALTERNATIVELY, this software may be distributed under the terms of the
> + * GNU General Public License ("GPL") as published by the Free Software
> + * Foundation, either version 2 of that License or (at your option) any
> + * later version.
> + *
> + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
> + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
> + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
> + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
> + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
> + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
> + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
> + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> + */
> +
> +#include "common/general.h"
> +
> +#include "fman_common.h"
> +#include "fsl_fman_port.h"
> +
> +/* problem Eyal: the following should not be here*/
??? Eyal ???
> +#define NIA_FM_CTL_AC_NO_IPACC_PRE_BMI_ENQ_FRAME 0x00000028
> +
> +static uint32_t get_no_pcd_nia_bmi_ac_enc_frame(struct fman_port_cfg *cfg)
> +{
> + if (cfg->errata_A006675)
> + return NIA_ENG_FM_CTL |
> + NIA_FM_CTL_AC_NO_IPACC_PRE_BMI_ENQ_FRAME;
> + else
> + return NIA_ENG_BMI | NIA_BMI_AC_ENQ_FRAME;
> +}
> +
>
[snip]
> +int fman_port_add_congestion_grps(struct fman_port *port,
> + uint32_t grps_map[FMAN_PORT_CG_MAP_NUM])
Passing an array this way is usually bad form.
> +{
> + int i;
> + uint32_t __iomem *grp_map_reg;
> + uint32_t tmp;
> + uint8_t max_grp_map_num;
> +
> + switch (port->type) {
> + case E_FMAN_PORT_TYPE_RX:
> + case E_FMAN_PORT_TYPE_RX_10G:
> + if (port->fm_rev_maj == 4)
> + max_grp_map_num = 1;
> + else
> + max_grp_map_num = FMAN_PORT_CG_MAP_NUM;
> + grp_map_reg = port->bmi_regs->rx.fmbm_rcgm;
> + break;
> + case E_FMAN_PORT_TYPE_OP:
> + max_grp_map_num = 1;
> + if (port->fm_rev_maj != 4)
> + return -EINVAL;
> + grp_map_reg = &port->bmi_regs->oh.fmbm_ocgm;
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + for (i = (max_grp_map_num - 1); i >= 0; i--) {
> + if (grps_map[i] == 0)
> + continue;
> + tmp = ioread32be(&grp_map_reg[i]);
> + tmp |= grps_map[i];
> + iowrite32be(tmp, &grp_map_reg[i]);
> + }
> +
> + return 0;
> +}
> +
> +int fman_port_remove_congestion_grps(struct fman_port *port,
> + uint32_t grps_map[FMAN_PORT_CG_MAP_NUM])
> +{
> + int i;
> + uint32_t __iomem *grp_map_reg;
> + uint32_t tmp;
> + uint8_t max_grp_map_num;
> +
> + switch (port->type) {
> + case E_FMAN_PORT_TYPE_RX:
> + case E_FMAN_PORT_TYPE_RX_10G:
> + if (port->fm_rev_maj == 4)
> + max_grp_map_num = 1;
> + else
> + max_grp_map_num = FMAN_PORT_CG_MAP_NUM;
> + grp_map_reg = port->bmi_regs->rx.fmbm_rcgm;
> + break;
> + case E_FMAN_PORT_TYPE_OP:
> + max_grp_map_num = 1;
> + if (port->fm_rev_maj != 4)
> + return -EINVAL;
> + grp_map_reg = &port->bmi_regs->oh.fmbm_ocgm;
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + for (i = (max_grp_map_num - 1); i >= 0; i--) {
> + if (grps_map[i] == 0)
> + continue;
> + tmp = ioread32be(&grp_map_reg[i]);
> + tmp &= ~grps_map[i];
> + iowrite32be(tmp, &grp_map_reg[i]);
> + }
> + return 0;
> +}
> --
> 1.7.9.5
>
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> Linuxppc-dev@...ts.ozlabs.org
> https://lists.ozlabs.org/listinfo/linuxppc-dev
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