lkml.org 
[lkml]   [2017]   [Jun]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v4 5/6] stmmac: pci: Use dmi_system_id table for retrieving PHY addresses
Date
Avoids reimplementation of DMI matching in stmmac_pci_find_phy_addr.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c | 99 ++++++++++++++++--------
1 file changed, 66 insertions(+), 33 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
index a6e10d3ced5c..2be15a8a9c40 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
@@ -30,36 +30,39 @@
* negative value of the address means that MAC controller is not connected
* with PHY.
*/
-struct stmmac_pci_dmi_data {
- const char *name;
- const char *asset_tag;
+struct stmmac_pci_func_data {
unsigned int func;
int phy_addr;
};

+struct stmmac_pci_dmi_data {
+ const struct stmmac_pci_func_data *func;
+ size_t nfuncs;
+};
+
struct stmmac_pci_info {
int (*setup)(struct pci_dev *pdev, struct plat_stmmacenet_data *plat);
};

static int stmmac_pci_find_phy_addr(struct pci_dev *pdev,
- struct stmmac_pci_dmi_data *dmi_data)
+ const struct dmi_system_id *dmi_list)
{
- const char *name = dmi_get_system_info(DMI_BOARD_NAME);
- const char *asset_tag = dmi_get_system_info(DMI_BOARD_ASSET_TAG);
- unsigned int func = PCI_FUNC(pdev->devfn);
- struct stmmac_pci_dmi_data *dmi;
-
- if (!name)
+ const struct stmmac_pci_func_data *func_data;
+ const struct stmmac_pci_dmi_data *dmi_data;
+ const struct dmi_system_id *dmi_id;
+ int func = PCI_FUNC(pdev->devfn);
+ size_t n;
+
+ dmi_id = dmi_first_match(dmi_list);
+ if (!dmi_id)
return -ENODEV;

- for (dmi = dmi_data; dmi->name && *dmi->name; dmi++) {
- if (!strcmp(dmi->name, name) && dmi->func == func) {
- /* If asset tag is provided, match on it as well. */
- if (dmi->asset_tag && strcmp(dmi->asset_tag, asset_tag))
- continue;
- return dmi->phy_addr;
- }
- }
+ dmi_data = dmi_id->driver_data;
+ func_data = dmi_data->func;
+
+ for (n = 0; n < dmi_data->nfuncs; n++, func_data++)
+ if (func_data->func == func)
+ return func_data->phy_addr;

return -ENODEV;
}
@@ -115,34 +118,64 @@ static const struct stmmac_pci_info stmmac_pci_info = {
.setup = stmmac_default_data,
};

-static struct stmmac_pci_dmi_data quark_pci_dmi_data[] = {
+static const struct stmmac_pci_func_data galileo_stmmac_func_data[] = {
{
- .name = "Galileo",
.func = 6,
.phy_addr = 1,
},
+ { },
+};
+
+static const struct stmmac_pci_dmi_data galileo_stmmac_dmi_data = {
+ .func = galileo_stmmac_func_data,
+ .nfuncs = ARRAY_SIZE(galileo_stmmac_func_data),
+};
+
+static const struct stmmac_pci_func_data iot2040_stmmac_func_data[] = {
{
- .name = "GalileoGen2",
.func = 6,
.phy_addr = 1,
},
{
- .name = "SIMATIC IOT2000",
- .asset_tag = "6ES7647-0AA00-0YA2",
- .func = 6,
+ .func = 7,
.phy_addr = 1,
},
+ { },
+};
+
+static const struct stmmac_pci_dmi_data iot2040_stmmac_dmi_data = {
+ .func = iot2040_stmmac_func_data,
+ .nfuncs = ARRAY_SIZE(iot2040_stmmac_func_data),
+};
+
+static const struct dmi_system_id quark_pci_dmi[] = {
{
- .name = "SIMATIC IOT2000",
- .asset_tag = "6ES7647-0AA00-1YA2",
- .func = 6,
- .phy_addr = 1,
+ .matches = {
+ DMI_EXACT_MATCH(DMI_BOARD_NAME, "Galileo"),
+ },
+ .driver_data = (void *)&galileo_stmmac_dmi_data,
},
{
- .name = "SIMATIC IOT2000",
- .asset_tag = "6ES7647-0AA00-1YA2",
- .func = 7,
- .phy_addr = 1,
+ .matches = {
+ DMI_EXACT_MATCH(DMI_BOARD_NAME, "GalileoGen2"),
+ },
+ .driver_data = (void *)&galileo_stmmac_dmi_data,
+ },
+ {
+ .matches = {
+ DMI_EXACT_MATCH(DMI_BOARD_NAME, "SIMATIC IOT2000"),
+ DMI_EXACT_MATCH(DMI_BOARD_ASSET_TAG,
+ "6ES7647-0AA00-0YA2"),
+ },
+ .driver_data = (void *)&galileo_stmmac_dmi_data,
+ },
+ {
+ .matches = {
+ DMI_EXACT_MATCH(DMI_BOARD_NAME, "SIMATIC IOT2000"),
+ DMI_EXACT_MATCH(DMI_BOARD_ASSET_TAG,
+ "6ES7647-0AA00-1YA2"),
+ },
+ .driver_data = (void *)&iot2040_stmmac_dmi_data,
},
{}
};
@@ -159,7 +192,7 @@ static int quark_default_data(struct pci_dev *pdev,
* Refuse to load the driver and register net device if MAC controller
* does not connect to any PHY interface.
*/
- ret = stmmac_pci_find_phy_addr(pdev, quark_pci_dmi_data);
+ ret = stmmac_pci_find_phy_addr(pdev, quark_pci_dmi);
if (ret < 0) {
/* Return error to the caller on DMI enabled boards. */
if (dmi_get_system_info(DMI_BOARD_NAME))
--
2.12.3
\
 
 \ /
  Last update: 2017-06-05 00:08    [W:0.084 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site