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linux_dsm_epyc7002/include/linux/stmmac.h

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stmmac: add the new Header file for stmmac platform data Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-07 06:07:13 +07:00
/*******************************************************************************
Header file for stmmac platform data
Copyright (C) 2009 STMicroelectronics Ltd
This program is free software; you can redistribute it and/or modify it
under the terms and conditions of the GNU General Public License,
version 2, as published by the Free Software Foundation.
This program is distributed in the hope it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
The full GNU General Public License is included in this distribution in
the file called "COPYING".
Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
*******************************************************************************/
#ifndef __STMMAC_PLATFORM_DATA
#define __STMMAC_PLATFORM_DATA
net/stmmac: Move "#include <linux/platform_device.h>" to linux/stmmac.h stmmac.h uses struct platform_device and doesn't include <linux/platform_device.h>. Whereas drivers/net/stmmac/stmmac.h includes it, but doesn't directly use it. And so we get following compilation warning while using this file: warning: ‘struct platform_device’ declared inside parameter list This patch includes <linux/platform_device.h> in linux/stmmac.h and removes it from drivers/net/stmmac/stmmac.h Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-03 01:36:45 +07:00
#include <linux/platform_device.h>
stmmac: Define CSUM offload engine Types This patch explicitly defines the CSUM offload engine type which need (not mandatory) to be passed from the platform code. STMMAC core supports two check sum offload engine types- Type-1 & Type-2. Also, there are STMMAC cores that do not have the check sum offload capabilities. The behaviour of Type-1 & Type-2 cores related to provision of checksum increases the packet length for Type-1 cores by 2, as the checksum is appended at the end of data packet and the same is made accountable in the DMA status. The STMMAC cores beyond Version-3.5 provide HW interface registers which allows the user to read the HW capabilities, while to support the previous cores the information related to HW capabilities has to be provided from the platform code. The Type-1 cores which do not have the HW register interface need this information. This patch also updates the driver's doc. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Hacked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04 11:33:20 +07:00
#define STMMAC_RX_COE_NONE 0
#define STMMAC_RX_COE_TYPE1 1
#define STMMAC_RX_COE_TYPE2 2
stmmac: Define MDC clock selection macros The patch adds the macros to be used for MDC clock selection. The MDC clock frequency is based on scaled system clock, and has to be confined to a range of 1-2.5 MHz. Based on the input CSR clock, the scaling factor has to be selected. The platform specific code will provide the default value of this scaling factor, based on the input CSR clock. There is an option to set MDC clock higher than the IEEE 802.3 specified frequency limit of 2.5 MHz. This applies for the interfacing chips that support higher MDC clocks. The resultant higher clock of 12.5 MHz requires additional Macros to be defined for the clock divider corresponding to the to the following selection. ----------------------------------------- Selection MDC Clock ----------------------------------------- 1000 clk_csr_i/4 1001 clk_csr_i/6 1010 clk_csr_i/8 1011 clk_csr_i/10 1100 clk_csr_i/12 1101 clk_csr_i/14 1110 clk_csr_i/16 1111 clk_csr_i/18 This support has to be added both in the include file, as well as driver. The driver need to program the registers based on the interfacing chips. This would be more board specific information and needs to be passed through the platform code to the driver. This work would be carried out in the future patch set release. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04 11:33:22 +07:00
/* Define the macros for CSR clock range parameters to be passed by
* platform code.
* This could also be configured at run time using CPU freq framework. */
/* MDC Clock Selection define*/
stmmac: extend CSR Clock Range programming The CSR Clock Range has been reworked and new macros has been added in the platform header to allow the CSR Clock Range selection in the GMII Address Register. The previous work didn't add the other fields that can be used to achieve MDC clock of frequency higher than the IEEE 802.3 specified frequency limit of 2.5 MHz and program a clock divider of lower value. On such platforms, these are used indeed so this patch adds them. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04 11:33:26 +07:00
#define STMMAC_CSR_60_100M 0x0 /* MDC = clk_scr_i/42 */
#define STMMAC_CSR_100_150M 0x1 /* MDC = clk_scr_i/62 */
#define STMMAC_CSR_20_35M 0x2 /* MDC = clk_scr_i/16 */
#define STMMAC_CSR_35_60M 0x3 /* MDC = clk_scr_i/26 */
#define STMMAC_CSR_150_250M 0x4 /* MDC = clk_scr_i/102 */
#define STMMAC_CSR_250_300M 0x5 /* MDC = clk_scr_i/122 */
stmmac: Define MDC clock selection macros The patch adds the macros to be used for MDC clock selection. The MDC clock frequency is based on scaled system clock, and has to be confined to a range of 1-2.5 MHz. Based on the input CSR clock, the scaling factor has to be selected. The platform specific code will provide the default value of this scaling factor, based on the input CSR clock. There is an option to set MDC clock higher than the IEEE 802.3 specified frequency limit of 2.5 MHz. This applies for the interfacing chips that support higher MDC clocks. The resultant higher clock of 12.5 MHz requires additional Macros to be defined for the clock divider corresponding to the to the following selection. ----------------------------------------- Selection MDC Clock ----------------------------------------- 1000 clk_csr_i/4 1001 clk_csr_i/6 1010 clk_csr_i/8 1011 clk_csr_i/10 1100 clk_csr_i/12 1101 clk_csr_i/14 1110 clk_csr_i/16 1111 clk_csr_i/18 This support has to be added both in the include file, as well as driver. The driver need to program the registers based on the interfacing chips. This would be more board specific information and needs to be passed through the platform code to the driver. This work would be carried out in the future patch set release. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04 11:33:22 +07:00
stmmac: extend CSR Clock Range programming The CSR Clock Range has been reworked and new macros has been added in the platform header to allow the CSR Clock Range selection in the GMII Address Register. The previous work didn't add the other fields that can be used to achieve MDC clock of frequency higher than the IEEE 802.3 specified frequency limit of 2.5 MHz and program a clock divider of lower value. On such platforms, these are used indeed so this patch adds them. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04 11:33:26 +07:00
/* The MDC clock could be set higher than the IEEE 802.3
stmmac: Define MDC clock selection macros The patch adds the macros to be used for MDC clock selection. The MDC clock frequency is based on scaled system clock, and has to be confined to a range of 1-2.5 MHz. Based on the input CSR clock, the scaling factor has to be selected. The platform specific code will provide the default value of this scaling factor, based on the input CSR clock. There is an option to set MDC clock higher than the IEEE 802.3 specified frequency limit of 2.5 MHz. This applies for the interfacing chips that support higher MDC clocks. The resultant higher clock of 12.5 MHz requires additional Macros to be defined for the clock divider corresponding to the to the following selection. ----------------------------------------- Selection MDC Clock ----------------------------------------- 1000 clk_csr_i/4 1001 clk_csr_i/6 1010 clk_csr_i/8 1011 clk_csr_i/10 1100 clk_csr_i/12 1101 clk_csr_i/14 1110 clk_csr_i/16 1111 clk_csr_i/18 This support has to be added both in the include file, as well as driver. The driver need to program the registers based on the interfacing chips. This would be more board specific information and needs to be passed through the platform code to the driver. This work would be carried out in the future patch set release. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04 11:33:22 +07:00
* specified frequency limit 0f 2.5 MHz, by programming a clock divider
* of value different than the above defined values. The resultant MDIO
* clock frequency of 12.5 MHz is applicable for the interfacing chips
* supporting higher MDC clocks.
* The MDC clock selection macros need to be defined for MDC clock rate
* of 12.5 MHz, corresponding to the following selection.
stmmac: extend CSR Clock Range programming The CSR Clock Range has been reworked and new macros has been added in the platform header to allow the CSR Clock Range selection in the GMII Address Register. The previous work didn't add the other fields that can be used to achieve MDC clock of frequency higher than the IEEE 802.3 specified frequency limit of 2.5 MHz and program a clock divider of lower value. On such platforms, these are used indeed so this patch adds them. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04 11:33:26 +07:00
*/
#define STMMAC_CSR_I_4 0x8 /* clk_csr_i/4 */
#define STMMAC_CSR_I_6 0x9 /* clk_csr_i/6 */
#define STMMAC_CSR_I_8 0xA /* clk_csr_i/8 */
#define STMMAC_CSR_I_10 0xB /* clk_csr_i/10 */
#define STMMAC_CSR_I_12 0xC /* clk_csr_i/12 */
#define STMMAC_CSR_I_14 0xD /* clk_csr_i/14 */
#define STMMAC_CSR_I_16 0xE /* clk_csr_i/16 */
#define STMMAC_CSR_I_18 0xF /* clk_csr_i/18 */
stmmac: Define MDC clock selection macros The patch adds the macros to be used for MDC clock selection. The MDC clock frequency is based on scaled system clock, and has to be confined to a range of 1-2.5 MHz. Based on the input CSR clock, the scaling factor has to be selected. The platform specific code will provide the default value of this scaling factor, based on the input CSR clock. There is an option to set MDC clock higher than the IEEE 802.3 specified frequency limit of 2.5 MHz. This applies for the interfacing chips that support higher MDC clocks. The resultant higher clock of 12.5 MHz requires additional Macros to be defined for the clock divider corresponding to the to the following selection. ----------------------------------------- Selection MDC Clock ----------------------------------------- 1000 clk_csr_i/4 1001 clk_csr_i/6 1010 clk_csr_i/8 1011 clk_csr_i/10 1100 clk_csr_i/12 1101 clk_csr_i/14 1110 clk_csr_i/16 1111 clk_csr_i/18 This support has to be added both in the include file, as well as driver. The driver need to program the registers based on the interfacing chips. This would be more board specific information and needs to be passed through the platform code to the driver. This work would be carried out in the future patch set release. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04 11:33:22 +07:00
treewide: fix typo of "suport" in various comments and Kconfig Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-08-22 17:11:26 +07:00
/* AXI DMA Burst length supported */
stmmac: re-work the internal GMAC DMA platf parameters This patch re-works the internal GMAC DMA parameters passed from the platform. In the past, we only passed the pbl but, with new core, other parameters can be passed and are mandatory on some platforms. New parameters are documented in stmmac.txt because this patch has an impact for many platforms. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Hacked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04 11:33:23 +07:00
#define DMA_AXI_BLEN_4 (1 << 1)
#define DMA_AXI_BLEN_8 (1 << 2)
#define DMA_AXI_BLEN_16 (1 << 3)
#define DMA_AXI_BLEN_32 (1 << 4)
#define DMA_AXI_BLEN_64 (1 << 5)
#define DMA_AXI_BLEN_128 (1 << 6)
#define DMA_AXI_BLEN_256 (1 << 7)
#define DMA_AXI_BLEN_ALL (DMA_AXI_BLEN_4 | DMA_AXI_BLEN_8 | DMA_AXI_BLEN_16 \
| DMA_AXI_BLEN_32 | DMA_AXI_BLEN_64 \
| DMA_AXI_BLEN_128 | DMA_AXI_BLEN_256)
stmmac: unify MAC and PHY configuration parameters (V2) Prior to this change, most PHY configuration parameters were passed into the STMMAC device as a separate PHY device. As well as being unusual, this made it difficult to make changes to the MAC/PHY relationship. This patch moves all the PHY parameters into the MAC configuration structure, mainly as a separate structure. This allows us to completely ignore the MDIO bus attached to a stmmac if desired, and not create the PHY bus. It also allows the stmmac driver to use a different PHY from the one it is connected to, for example a fixed PHY or bit banging PHY. Also derive the stmmac/PHY connection type (MII/RMII etc) from the mode can be passed into <platf>_configure_ethernet. STLinux kernel at git://git.stlinux.com/stm/linux-sh4-2.6.32.y.git provides several examples how to use this new infrastructure (that actually is easier to maintain and clearer). Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-20 07:05:23 +07:00
/* Platfrom data for platform device structure's platform_data field */
struct stmmac_mdio_bus_data {
int (*phy_reset)(void *priv);
unsigned int phy_mask;
int *irqs;
int probed_phy_irq;
dt:net:stmmac: Add dt specific phy reset callback support. This patch adds phy reset callback support for stmmac driver via device trees. It adds three new properties to gmac device tree bindings to define the reset signal via gpio. With this patch users can conveniently pass reset gpio number with pre, pulse and post delay in micro secs via DTs. active low: _________ ____________ <pre-delay> |<pulse-delay> |<post-delay> | | |_______________| active high: ________________ <pre-delay> |<pulse-delay> |<post-delay> | | ________| |___________ Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-04 16:35:48 +07:00
#ifdef CONFIG_OF
int reset_gpio, active_low;
u32 delays[3];
#endif
stmmac: unify MAC and PHY configuration parameters (V2) Prior to this change, most PHY configuration parameters were passed into the STMMAC device as a separate PHY device. As well as being unusual, this made it difficult to make changes to the MAC/PHY relationship. This patch moves all the PHY parameters into the MAC configuration structure, mainly as a separate structure. This allows us to completely ignore the MDIO bus attached to a stmmac if desired, and not create the PHY bus. It also allows the stmmac driver to use a different PHY from the one it is connected to, for example a fixed PHY or bit banging PHY. Also derive the stmmac/PHY connection type (MII/RMII etc) from the mode can be passed into <platf>_configure_ethernet. STLinux kernel at git://git.stlinux.com/stm/linux-sh4-2.6.32.y.git provides several examples how to use this new infrastructure (that actually is easier to maintain and clearer). Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-20 07:05:23 +07:00
};
stmmac: add the new Header file for stmmac platform data Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-07 06:07:13 +07:00
stmmac: re-work the internal GMAC DMA platf parameters This patch re-works the internal GMAC DMA parameters passed from the platform. In the past, we only passed the pbl but, with new core, other parameters can be passed and are mandatory on some platforms. New parameters are documented in stmmac.txt because this patch has an impact for many platforms. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Hacked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04 11:33:23 +07:00
struct stmmac_dma_cfg {
int pbl;
int fixed_burst;
stmmac: add mixed burst for DMA In mixed burst (MB) mode, the AHB master always initiates the bursts with fixed-size when the DMA requests transfers of size less than or equal to 16 beats. This patch adds the MB support and the flag that can be passed from the platform to select it. MB mode can also give some benefits in terms of performances on some platforms. v2: fixed Coding Style Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-14 05:18:42 +07:00
int mixed_burst;
stmmac: rework DMA bus setting and introduce new platform AXI structure This patch restructures the DMA bus settings and this is done by introducing a new platform structure used for programming the AXI Bus Mode Register inside the DMA module. This structure can be populated from device-tree as documented in the binding txt file. After initializing the DMA, the AXI register can be optionally tuned for platform drivers based. This patch also reworks some parameters to make coherent the DMA configuration now that AXI register is introduced. For example, the burst_len is managed by using the mentioned axi support above; so the snps,burst-len parameter has been removed. It makes sense to provide the AAL parameter from DT to Address-Aligned Beats inside the Register0 and review the PBL settings when initialize the engine. For PCI glue, rebuilding the story of this setting, it was added to align a configuration so not for fixing some known problem. No issue raised after this patch. It is safe to use the default burst length instead of tuning it to the maximum value Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-29 20:27:28 +07:00
bool aal;
};
#define AXI_BLEN 7
struct stmmac_axi {
bool axi_lpi_en;
bool axi_xit_frm;
u32 axi_wr_osr_lmt;
u32 axi_rd_osr_lmt;
bool axi_kbbe;
bool axi_axi_all;
u32 axi_blen[AXI_BLEN];
bool axi_fb;
bool axi_mb;
bool axi_rb;
stmmac: re-work the internal GMAC DMA platf parameters This patch re-works the internal GMAC DMA parameters passed from the platform. In the past, we only passed the pbl but, with new core, other parameters can be passed and are mandatory on some platforms. New parameters are documented in stmmac.txt because this patch has an impact for many platforms. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Hacked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04 11:33:23 +07:00
};
stmmac: add the new Header file for stmmac platform data Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-07 06:07:13 +07:00
struct plat_stmmacenet_data {
int bus_id;
stmmac: unify MAC and PHY configuration parameters (V2) Prior to this change, most PHY configuration parameters were passed into the STMMAC device as a separate PHY device. As well as being unusual, this made it difficult to make changes to the MAC/PHY relationship. This patch moves all the PHY parameters into the MAC configuration structure, mainly as a separate structure. This allows us to completely ignore the MDIO bus attached to a stmmac if desired, and not create the PHY bus. It also allows the stmmac driver to use a different PHY from the one it is connected to, for example a fixed PHY or bit banging PHY. Also derive the stmmac/PHY connection type (MII/RMII etc) from the mode can be passed into <platf>_configure_ethernet. STLinux kernel at git://git.stlinux.com/stm/linux-sh4-2.6.32.y.git provides several examples how to use this new infrastructure (that actually is easier to maintain and clearer). Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-20 07:05:23 +07:00
int phy_addr;
int interface;
struct stmmac_mdio_bus_data *mdio_bus_data;
stmmac: add phy-handle support to the platform layer On stmmac driver, PHY specification in device-tree was done using the non-standard property "snps,phy-addr". Specifying a PHY on a different MDIO bus that the one within the stmmac controller doesn't seem to be possible when device-tree is used. This change adds support for the phy-handle property, as specified in Documentation/devicetree/bindings/net/ethernet.txt. Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-28 01:02:47 +07:00
struct device_node *phy_node;
stmmac: fix MDIO settings Initially the phy_bus_name was added to manipulate the driver name but it was recently just used to manage the fixed-link and then to take some decision at run-time. So the patch uses the is_pseudo_fixed_link and removes the phy_bus_name variable not necessary anymore. The driver can manage the mdio registration by using phy-handle, dwmac-mdio and own parameter e.g. snps,phy-addr. This patch takes care about all these possible configurations and fixes the mdio registration in case of there is a real transceiver or a switch (that needs to be managed by using fixed-link). Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Tested-by: Frank Schäfer <fschaefer.oss@googlemail.com> Cc: Gabriel Fernandez <gabriel.fernandez@linaro.org> Cc: Dinh Nguyen <dinh.linux@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: Phil Reid <preid@electromag.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-01 14:07:16 +07:00
struct device_node *mdio_node;
stmmac: re-work the internal GMAC DMA platf parameters This patch re-works the internal GMAC DMA parameters passed from the platform. In the past, we only passed the pbl but, with new core, other parameters can be passed and are mandatory on some platforms. New parameters are documented in stmmac.txt because this patch has an impact for many platforms. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Hacked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04 11:33:23 +07:00
struct stmmac_dma_cfg *dma_cfg;
stmmac: add CSR Clock range selection This patch adds the CSR Clock range selection. Original patch from Johannes Stezenbach fixed the CSR in the stmmac_mdio. We agreed to provide this through the platform instead of. Also thanks to Johannes for having tested it on ARM. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-17 10:23:39 +07:00
int clk_csr;
stmmac: add the new Header file for stmmac platform data Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-07 06:07:13 +07:00
int has_gmac;
stmmac: new descriptor field for the driver's platform The new enh_desc is used for selecting the enhanced descriptors structure. There are several scenarios; some chips (mac10/100 or gmac) want to use the enhanced descriptors; others want the normal ones. For example, on ST platforms: MAC10/100 uses the normal desc structure and the GMAC uses the enhanced one. It can be useful to get this information from the platform. This could also be decided at run-time looking at the chip's ID number; but it could happen that chips with the same ID want to use different descriptor structure. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-14 03:21:14 +07:00
int enh_desc;
stmmac: consolidate and tidy-up the COE support The first version of the driver had hard-coded the logic for handling the checksum offloading. This was designed according to the chips included in the STM platforms where: o MAC10/100 supports no COE at all. o GMAC fully supports RX/TX COE. This is not good for other chip configurations where, for example, the mac10/100 supports the tx csum in HW or when the GMAC has no IPC. Thanks to Johannes Stezenbach; he provided me a first draft of this patch that only reviewed the IPC for the GMAC devices. This patch also helps on SPEAr platforms where the MAC10/100 can perform the TX csum in HW. Thanks to Deepak SIKRI for his support on this. In the end, GMAC devices for STM platforms have a bugged Jumbo frame support that needs to have the Tx COE disabled for oversized frames (due to limited buffer sizes). This information is also passed through the driver's platform structure. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Deepak SIKRI <deepak.sikri@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-17 10:23:40 +07:00
int tx_coe;
stmmac: Define CSUM offload engine Types This patch explicitly defines the CSUM offload engine type which need (not mandatory) to be passed from the platform code. STMMAC core supports two check sum offload engine types- Type-1 & Type-2. Also, there are STMMAC cores that do not have the check sum offload capabilities. The behaviour of Type-1 & Type-2 cores related to provision of checksum increases the packet length for Type-1 cores by 2, as the checksum is appended at the end of data packet and the same is made accountable in the DMA status. The STMMAC cores beyond Version-3.5 provide HW interface registers which allows the user to read the HW capabilities, while to support the previous cores the information related to HW capabilities has to be provided from the platform code. The Type-1 cores which do not have the HW register interface need this information. This patch also updates the driver's doc. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Hacked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04 11:33:20 +07:00
int rx_coe;
stmmac: consolidate and tidy-up the COE support The first version of the driver had hard-coded the logic for handling the checksum offloading. This was designed according to the chips included in the STM platforms where: o MAC10/100 supports no COE at all. o GMAC fully supports RX/TX COE. This is not good for other chip configurations where, for example, the mac10/100 supports the tx csum in HW or when the GMAC has no IPC. Thanks to Johannes Stezenbach; he provided me a first draft of this patch that only reviewed the IPC for the GMAC devices. This patch also helps on SPEAr platforms where the MAC10/100 can perform the TX csum in HW. Thanks to Deepak SIKRI for his support on this. In the end, GMAC devices for STM platforms have a bugged Jumbo frame support that needs to have the Tx COE disabled for oversized frames (due to limited buffer sizes). This information is also passed through the driver's platform structure. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Deepak SIKRI <deepak.sikri@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-17 10:23:40 +07:00
int bugged_jumbo;
stmmac: review the wake-up support If the PM support is available this is passed through the platform instead to be hard-coded in the core files. WoL on Magic Frame can be enabled by using the ethtool support. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-25 11:27:41 +07:00
int pmt;
stmmac: Allow SOCs to use Store forward mode eventhough tx_coe is 0. (V2) This patch adds new field 'force_sf_dma_mode' to plat_stmmacenet_data struct to allow users to specify if they want to use force store forward eventhough tx_coe is not available in hw. without this flag stmmac driver will use cut-thru mode not use store-forward mode. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-18 03:54:09 +07:00
int force_sf_dma_mode;
driver:net:stmmac: Disable DMA store and forward mode if platform data force_thresh_dma_mode is set. Some synopsys ip implementation doesn't support DMA store and forward mode, such as BF60x. So, set force_thresh_dma_mode to use DMA thresholds only. Update document and devicetree as well. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-28 17:55:39 +07:00
int force_thresh_dma_mode;
stmmac: add Rx watchdog support to mitigate the DMA irqs GMAC devices newer than databook 3.40 has an embedded timer that can be used for mitigating the number of interrupts. So this patch adds this optimizations. At any rate, the Rx watchdog can be disable (on bugged HW) by passing from the platform the riwt_off field. In this implementation the rx timer stored in the Reg9 is fixed to the max value. This will be tuned by using ethtool. V2: added a platform parameter to force to disable the rx-watchdog for example on new core where it is bugged. V3: do not disable NAPI when Rx watchdog is used. V4: a new extra statistic field has been added to show the early receive status in the interrupt handler. This patch also adds an extra check to avoid to call napi_schedule when the DMA_INTR_ENA_RIE bit is disabled in the Interrupt Mask register. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26 06:10:43 +07:00
int riwt_off;
net: stmmac: support max-speed device tree property This patch adds support to "max-speed" property which is a standard Ethernet device tree property. max-speed specifies maximum speed (specified in megabits per second) supported the device. Depending on the clocking schemes some of the boards can only support few link speeds, so having a way to limit the link speed in the mac driver would allow such setups to work reliably. Without this patch there is no way to tell the driver to limit the link speed. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-16 17:51:43 +07:00
int max_speed;
stmmac: Fix kernel crashes for jumbo frames These changes correct the following issues with jumbo frames on the stmmac driver: 1) The Synopsys EMAC can be configured to support different FIFO sizes at core configuration time. There's no way to query the controller and know the FIFO size, so the driver needs to get this information from the device tree in order to know how to correctly handle MTU changes and setting up dma buffers. The default max-frame-size is as currently used, which is the size of a jumbo frame. 2) The driver was enabling Jumbo frames by default, but was not allocating dma buffers of sufficient size to handle the maximum possible packet size that could be received. This led to memory corruption since DMAs were occurring beyond the extent of the allocated receive buffers for certain types of network traffic. kernel BUG at net/core/skbuff.c:126! Internal error: Oops - BUG: 0 [#1] SMP ARM Modules linked in: CPU: 0 PID: 563 Comm: sockperf Not tainted 3.13.0-rc6-01523-gf7111b9 #31 task: ef35e580 ti: ef252000 task.ti: ef252000 PC is at skb_panic+0x60/0x64 LR is at skb_panic+0x60/0x64 pc : [<c03c7c3c>] lr : [<c03c7c3c>] psr: 60000113 sp : ef253c18 ip : 60000113 fp : 00000000 r10: ef3a5400 r9 : 00000ebc r8 : ef3a546c r7 : ee59f000 r6 : ee59f084 r5 : ee59ff40 r4 : ee59f140 r3 : 000003e2 r2 : 00000007 r1 : c0b9c420 r0 : 0000007d Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 10c5387d Table: 2e8ac04a DAC: 00000015 Process sockperf (pid: 563, stack limit = 0xef252248) Stack: (0xef253c18 to 0xef254000) 3c00: 00000ebc ee59f000 3c20: ee59f084 ee59ff40 ee59f140 c04a9cd8 ee8c50c0 00000ebc ee59ff40 00000000 3c40: ee59f140 c02d0ef0 00000056 ef1eda80 ee8c50c0 00000ebc 22bbef29 c0318f8c 3c60: 00000056 ef3a547c ffe2c716 c02c9c90 c0ba1298 ef3a5838 ef3a5838 ef3a5400 3c80: 000020c0 ee573840 000055cb ef3f2050 c053f0e0 c0319214 22b9b085 22d92813 3ca0: 00001c80 004b8e00 ef3a5400 ee573840 ef3f2064 22d92813 ef3f2064 000055cb 3cc0: ef3f2050 c031a19c ef252000 00000000 00000000 c0561bc0 00000000 ff00ffff 3ce0: c05621c0 ef3a5400 ef3f2064 ee573840 00000020 ef3f2064 000055cb ef3f2050 3d00: c053f0e0 c031cad0 c053e740 00000e60 00000000 00000000 ee573840 ef3a5400 3d20: ef0a6e00 00000000 ef3f2064 c032507c 00010000 00000020 c0561bc0 c0561bc0 3d40: ee599850 c032799c 00000000 ee573840 c055a380 ef3a5400 00000000 ef3f2064 3d60: ef3f2050 c032799c 0101c7c0 2b6755cb c059a280 c030e4d8 000055cb ffffffff 3d80: ee574fc0 c055a380 ee574000 ee573840 00002b67 ee573840 c03fe9c4 c053fa68 3da0: c055a380 00001f6f 00000000 ee573840 c053f0e0 c0304fdc ef0a6e01 ef3f2050 3dc0: ee573858 ef031000 ee573840 c03055d8 c0ba0c40 ef000f40 00100100 c053f0dc 3de0: c053ffdc c053f0f0 00000008 00000000 ef031000 c02da948 00001140 00000000 3e00: c0563c78 ef253e5f 00000020 ee573840 00000020 c053f0f0 ef313400 ee573840 3e20: c053f0e0 00000000 00000000 c05380c0 ef313400 00001000 00000015 c02df280 3e40: ee574000 ef001e00 00000000 00001080 00000042 005cd980 ef031500 ef031500 3e60: 00000000 c02df824 ef031500 c053e390 c0541084 f00b1e00 c05925e8 c02df864 3e80: 00001f5c ef031440 c053e390 c0278524 00000002 00000000 c0b9eb48 c02df280 3ea0: ee8c7180 00000100 c0542ca8 00000015 00000040 ef031500 ef031500 ef031500 3ec0: c027803c ef252000 00000040 000000ec c05380c0 c0b9eb40 c0b9eb48 c02df940 3ee0: ef060780 ffffa4dd c0564a9c c056343c 002e80a8 00000080 ef031500 00000001 3f00: c053808c ef252000 fffec100 00000003 00000004 002e80a8 0000000c c00258f0 3f20: 002e80a8 c005e704 00000005 00000100 c05634d0 c0538080 c05333e0 00000000 3f40: 0000000a c0565580 c05380c0 ffffa4dc c05434f4 00400100 00000004 c0534cd4 3f60: 00000098 00000000 fffec100 002e80a8 00000004 002e80a8 002a20e0 c0025da8 3f80: c0534cd4 c000f020 fffec10c c053ea60 ef253fb0 c0008530 0000ffe2 b6ef67f4 3fa0: 40000010 ffffffff 00000124 c0012f3c 0000ffe2 002e80f0 0000ffe2 00004000 3fc0: becb6338 becb6334 00000004 00000124 002e80a8 00000004 002e80a8 002a20e0 3fe0: becb6300 becb62f4 002773bb b6ef67f4 40000010 ffffffff 00000000 00000000 [<c03c7c3c>] (skb_panic+0x60/0x64) from [<c02d0ef0>] (skb_put+0x4c/0x50) [<c02d0ef0>] (skb_put+0x4c/0x50) from [<c0318f8c>] (tcp_collapse+0x314/0x3ec) [<c0318f8c>] (tcp_collapse+0x314/0x3ec) from [<c0319214>] (tcp_try_rmem_schedule+0x1b0/0x3c4) [<c0319214>] (tcp_try_rmem_schedule+0x1b0/0x3c4) from [<c031a19c>] (tcp_data_queue+0x480/0xe6c) [<c031a19c>] (tcp_data_queue+0x480/0xe6c) from [<c031cad0>] (tcp_rcv_established+0x180/0x62c) [<c031cad0>] (tcp_rcv_established+0x180/0x62c) from [<c032507c>] (tcp_v4_do_rcv+0x13c/0x31c) [<c032507c>] (tcp_v4_do_rcv+0x13c/0x31c) from [<c032799c>] (tcp_v4_rcv+0x718/0x73c) [<c032799c>] (tcp_v4_rcv+0x718/0x73c) from [<c0304fdc>] (ip_local_deliver+0x98/0x274) [<c0304fdc>] (ip_local_deliver+0x98/0x274) from [<c03055d8>] (ip_rcv+0x420/0x758) [<c03055d8>] (ip_rcv+0x420/0x758) from [<c02da948>] (__netif_receive_skb_core+0x44c/0x5bc) [<c02da948>] (__netif_receive_skb_core+0x44c/0x5bc) from [<c02df280>] (netif_receive_skb+0x48/0xb4) [<c02df280>] (netif_receive_skb+0x48/0xb4) from [<c02df824>] (napi_gro_flush+0x70/0x94) [<c02df824>] (napi_gro_flush+0x70/0x94) from [<c02df864>] (napi_complete+0x1c/0x34) [<c02df864>] (napi_complete+0x1c/0x34) from [<c0278524>] (stmmac_poll+0x4e8/0x5c8) [<c0278524>] (stmmac_poll+0x4e8/0x5c8) from [<c02df940>] (net_rx_action+0xc4/0x1e4) [<c02df940>] (net_rx_action+0xc4/0x1e4) from [<c00258f0>] (__do_softirq+0x12c/0x2e8) [<c00258f0>] (__do_softirq+0x12c/0x2e8) from [<c0025da8>] (irq_exit+0x78/0xac) [<c0025da8>] (irq_exit+0x78/0xac) from [<c000f020>] (handle_IRQ+0x44/0x90) [<c000f020>] (handle_IRQ+0x44/0x90) from [<c0008530>] (gic_handle_irq+0x2c/0x5c) [<c0008530>] (gic_handle_irq+0x2c/0x5c) from [<c0012f3c>] (__irq_usr+0x3c/0x60) 3) The driver was setting the dma buffer size after allocating dma buffers, which caused a system panic when changing the MTU. BUG: Bad page state in process ifconfig pfn:2e850 page:c0b72a00 count:0 mapcount:0 mapping: (null) index:0x0 page flags: 0x200(arch_1) Modules linked in: CPU: 0 PID: 566 Comm: ifconfig Not tainted 3.13.0-rc6-01523-gf7111b9 #29 [<c001547c>] (unwind_backtrace+0x0/0xf8) from [<c00122dc>] (show_stack+0x10/0x14) [<c00122dc>] (show_stack+0x10/0x14) from [<c03c793c>] (dump_stack+0x70/0x88) [<c03c793c>] (dump_stack+0x70/0x88) from [<c00b2620>] (bad_page+0xc8/0x118) [<c00b2620>] (bad_page+0xc8/0x118) from [<c00b302c>] (get_page_from_freelist+0x744/0x870) [<c00b302c>] (get_page_from_freelist+0x744/0x870) from [<c00b40f4>] (__alloc_pages_nodemask+0x118/0x86c) [<c00b40f4>] (__alloc_pages_nodemask+0x118/0x86c) from [<c00b4858>] (__get_free_pages+0x10/0x54) [<c00b4858>] (__get_free_pages+0x10/0x54) from [<c00cba1c>] (kmalloc_order_trace+0x24/0xa0) [<c00cba1c>] (kmalloc_order_trace+0x24/0xa0) from [<c02d199c>] (__kmalloc_reserve.isra.21+0x24/0x70) [<c02d199c>] (__kmalloc_reserve.isra.21+0x24/0x70) from [<c02d240c>] (__alloc_skb+0x68/0x13c) [<c02d240c>] (__alloc_skb+0x68/0x13c) from [<c02d3930>] (__netdev_alloc_skb+0x3c/0xe8) [<c02d3930>] (__netdev_alloc_skb+0x3c/0xe8) from [<c0279378>] (stmmac_open+0x63c/0x1024) [<c0279378>] (stmmac_open+0x63c/0x1024) from [<c02e18cc>] (__dev_open+0xa0/0xfc) [<c02e18cc>] (__dev_open+0xa0/0xfc) from [<c02e1b40>] (__dev_change_flags+0x94/0x158) [<c02e1b40>] (__dev_change_flags+0x94/0x158) from [<c02e1c24>] (dev_change_flags+0x18/0x48) [<c02e1c24>] (dev_change_flags+0x18/0x48) from [<c0337bc0>] (devinet_ioctl+0x638/0x700) [<c0337bc0>] (devinet_ioctl+0x638/0x700) from [<c02c7aec>] (sock_ioctl+0x64/0x290) [<c02c7aec>] (sock_ioctl+0x64/0x290) from [<c0100890>] (do_vfs_ioctl+0x78/0x5b8) [<c0100890>] (do_vfs_ioctl+0x78/0x5b8) from [<c0100e0c>] (SyS_ioctl+0x3c/0x5c) [<c0100e0c>] (SyS_ioctl+0x3c/0x5c) from [<c000e760>] The fixes have been verified using reproducible, automated testing. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-20 18:39:01 +07:00
int maxmtu;
net: stmmac: Support devicetree configs for mcast and ucast filter entries This patch adds and modifies code to support multiple Multicast and Unicast Synopsys MAC filter configurations. The default configuration is defined to support legacy driver behavior, which is 64 Multicast bins. The Unicast filter code previously assumed all controllers support 32 or 16 Unicast addresses based on controller version number, but this has been corrected to support a default of 1 Unicast address. The filter configuration may be specified through the devicetree using a Synopsys specific device tree entry. This information was verified with Synopsys through Synopsys Support Case #8000684337 and shared with the maintainer. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-01 03:49:17 +07:00
int multicast_filter_bins;
int unicast_filter_entries;
stmmac: Read tx-fifo-depth and rx-fifo-depth from the devicetree Read the tx-fifo-depth and rx-fifo-depth from the devicetree. The Synopsys stmmac controller fifos are configurable per product instance, and the fifo sizes are needed to configure certain features correctly such as flow control. Signed-off-by: Vince Bridgers <vbridger@opensource.altera.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-15 23:17:40 +07:00
int tx_fifo_size;
int rx_fifo_size;
stmmac: add the new Header file for stmmac platform data Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-07 06:07:13 +07:00
void (*fix_mac_speed)(void *priv, unsigned int speed);
stmmac: make ioaddr 'void __iomem *' rather than unsigned long This avoids unnecessary casting and adds the ioaddr in the private structure. This patch also removes many warning when compile the driver. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-24 03:40:42 +07:00
void (*bus_setup)(void __iomem *ioaddr);
net: stmmac: Allocate and pass soc/board specific data to callbacks The current .init and .exit callbacks requires access to driver private data structures. This is not a good seperation and abstraction. Instead, we add a new .setup callback for allocating private data, and pass the returned pointer to the other callbacks. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-17 20:24:42 +07:00
int (*init)(struct platform_device *pdev, void *priv);
void (*exit)(struct platform_device *pdev, void *priv);
net: stmmac: allow to split suspend/resume from init/exit callbacks Let the stmmac platform drivers provide dedicated suspend and resume callbacks rather than always re-using the init and exits callbacks. If the driver does not provide the suspend or resume callback, we fall back to the old behavior trying to use exit or init. This allows a specific platform to perform only a partial power-down on suspend if Wake-on-Lan is enabled but always perform the full shutdown sequence if the module is unloaded. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-16 01:32:21 +07:00
void (*suspend)(struct platform_device *pdev, void *priv);
void (*resume)(struct platform_device *pdev, void *priv);
stmmac: add the new Header file for stmmac platform data Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-07 06:07:13 +07:00
void *bsp_priv;
stmmac: rework DMA bus setting and introduce new platform AXI structure This patch restructures the DMA bus settings and this is done by introducing a new platform structure used for programming the AXI Bus Mode Register inside the DMA module. This structure can be populated from device-tree as documented in the binding txt file. After initializing the DMA, the AXI register can be optionally tuned for platform drivers based. This patch also reworks some parameters to make coherent the DMA configuration now that AXI register is introduced. For example, the burst_len is managed by using the mentioned axi support above; so the snps,burst-len parameter has been removed. It makes sense to provide the AAL parameter from DT to Address-Aligned Beats inside the Register0 and review the PBL settings when initialize the engine. For PCI glue, rebuilding the story of this setting, it was added to align a configuration so not for fixing some known problem. No issue raised after this patch. It is safe to use the default burst length instead of tuning it to the maximum value Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-29 20:27:28 +07:00
struct stmmac_axi *axi;
stmmac: add new DT platform entries for GMAC4 This is to support the snps,dwmac-4.00 and snps,dwmac-4.10a and related features on the platform driver. See binding doc for further details. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-01 16:37:33 +07:00
int has_gmac4;
bool tso_en;
drivers: net: stmmac: add port selection programming In case of SGMII more, for example when a MAC2MAC connection is needed, the port selection bits (inside the MAC configuration registers) have to be programmed according to the link selected. So the patch adds a new DT parameter to pass the port selection and to programmed related PCS and CORE to use it. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-24 20:16:26 +07:00
int mac_port_sel_speed;
stmmac: add the new Header file for stmmac platform data Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-07 06:07:13 +07:00
};
#endif
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