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path: root/drivers/net/fddi/defxx.c
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Diffstat (limited to 'drivers/net/fddi/defxx.c')
-rw-r--r--drivers/net/fddi/defxx.c96
1 files changed, 48 insertions, 48 deletions
diff --git a/drivers/net/fddi/defxx.c b/drivers/net/fddi/defxx.c
index 077c68498f04..6d1e3f49a3d3 100644
--- a/drivers/net/fddi/defxx.c
+++ b/drivers/net/fddi/defxx.c
@@ -21,7 +21,7 @@
* LVS Lawrence V. Stefani <lstefani@yahoo.com>
*
* Maintainers:
- * macro Maciej W. Rozycki <macro@linux-mips.org>
+ * macro Maciej W. Rozycki <macro@orcam.me.uk>
*
* Credits:
* I'd like to thank Patricia Cross for helping me get started with
@@ -197,6 +197,7 @@
* 23 Oct 2006 macro Big-endian host support.
* 14 Dec 2006 macro TURBOchannel support.
* 01 Jul 2014 macro Fixes for DMA on 64-bit hosts.
+ * 10 Mar 2021 macro Dynamic MMIO vs port I/O.
*/
/* Include files */
@@ -225,8 +226,8 @@
/* Version information string should be updated prior to each new release! */
#define DRV_NAME "defxx"
-#define DRV_VERSION "v1.11"
-#define DRV_RELDATE "2014/07/01"
+#define DRV_VERSION "v1.12"
+#define DRV_RELDATE "2021/03/10"
static const char version[] =
DRV_NAME ": " DRV_VERSION " " DRV_RELDATE
@@ -253,10 +254,10 @@ static const char version[] =
#define DFX_BUS_TC(dev) 0
#endif
-#ifdef CONFIG_DEFXX_MMIO
-#define DFX_MMIO 1
+#if defined(CONFIG_EISA) || defined(CONFIG_PCI)
+#define dfx_use_mmio bp->mmio
#else
-#define DFX_MMIO 0
+#define dfx_use_mmio true
#endif
/* Define module-wide (static) routines */
@@ -374,8 +375,6 @@ static inline void dfx_outl(DFX_board_t *bp, int offset, u32 data)
static void dfx_port_write_long(DFX_board_t *bp, int offset, u32 data)
{
struct device __maybe_unused *bdev = bp->bus_dev;
- int dfx_bus_tc = DFX_BUS_TC(bdev);
- int dfx_use_mmio = DFX_MMIO || dfx_bus_tc;
if (dfx_use_mmio)
dfx_writel(bp, offset, data);
@@ -398,8 +397,6 @@ static inline void dfx_inl(DFX_board_t *bp, int offset, u32 *data)
static void dfx_port_read_long(DFX_board_t *bp, int offset, u32 *data)
{
struct device __maybe_unused *bdev = bp->bus_dev;
- int dfx_bus_tc = DFX_BUS_TC(bdev);
- int dfx_use_mmio = DFX_MMIO || dfx_bus_tc;
if (dfx_use_mmio)
dfx_readl(bp, offset, data);
@@ -421,7 +418,7 @@ static void dfx_port_read_long(DFX_board_t *bp, int offset, u32 *data)
* None
*
* Arguments:
- * bdev - pointer to device information
+ * bp - pointer to board information
* bar_start - pointer to store the start addresses
* bar_len - pointer to store the lengths of the areas
*
@@ -431,13 +428,13 @@ static void dfx_port_read_long(DFX_board_t *bp, int offset, u32 *data)
* Side Effects:
* None
*/
-static void dfx_get_bars(struct device *bdev,
+static void dfx_get_bars(DFX_board_t *bp,
resource_size_t *bar_start, resource_size_t *bar_len)
{
+ struct device *bdev = bp->bus_dev;
int dfx_bus_pci = dev_is_pci(bdev);
int dfx_bus_eisa = DFX_BUS_EISA(bdev);
int dfx_bus_tc = DFX_BUS_TC(bdev);
- int dfx_use_mmio = DFX_MMIO || dfx_bus_tc;
if (dfx_bus_pci) {
int num = dfx_use_mmio ? 0 : 1;
@@ -495,6 +492,13 @@ static const struct net_device_ops dfx_netdev_ops = {
.ndo_set_mac_address = dfx_ctl_set_mac_address,
};
+static void dfx_register_res_err(const char *print_name, bool mmio,
+ unsigned long start, unsigned long len)
+{
+ pr_err("%s: Cannot reserve %s resource 0x%lx @ 0x%lx, aborting\n",
+ print_name, mmio ? "MMIO" : "I/O", len, start);
+}
+
/*
* ================
* = dfx_register =
@@ -528,8 +532,6 @@ static int dfx_register(struct device *bdev)
static int version_disp;
int dfx_bus_pci = dev_is_pci(bdev);
int dfx_bus_eisa = DFX_BUS_EISA(bdev);
- int dfx_bus_tc = DFX_BUS_TC(bdev);
- int dfx_use_mmio = DFX_MMIO || dfx_bus_tc;
const char *print_name = dev_name(bdev);
struct net_device *dev;
DFX_board_t *bp; /* board pointer */
@@ -567,46 +569,48 @@ static int dfx_register(struct device *bdev)
bp->bus_dev = bdev;
dev_set_drvdata(bdev, dev);
- dfx_get_bars(bdev, bar_start, bar_len);
- if (dfx_bus_eisa && dfx_use_mmio && bar_start[0] == 0) {
- pr_err("%s: Cannot use MMIO, no address set, aborting\n",
- print_name);
- pr_err("%s: Run ECU and set adapter's MMIO location\n",
- print_name);
- pr_err("%s: Or recompile driver with \"CONFIG_DEFXX_MMIO=n\""
- "\n", print_name);
- err = -ENXIO;
- goto err_out;
+ bp->mmio = true;
+
+ dfx_get_bars(bp, bar_start, bar_len);
+ if (bar_len[0] == 0 ||
+ (dfx_bus_eisa && dfx_use_mmio && bar_start[0] == 0)) {
+ bp->mmio = false;
+ dfx_get_bars(bp, bar_start, bar_len);
}
- if (dfx_use_mmio)
+ if (dfx_use_mmio) {
region = request_mem_region(bar_start[0], bar_len[0],
- print_name);
- else
- region = request_region(bar_start[0], bar_len[0], print_name);
+ bdev->driver->name);
+ if (!region && (dfx_bus_eisa || dfx_bus_pci)) {
+ bp->mmio = false;
+ dfx_get_bars(bp, bar_start, bar_len);
+ }
+ }
+ if (!dfx_use_mmio)
+ region = request_region(bar_start[0], bar_len[0],
+ bdev->driver->name);
if (!region) {
- pr_err("%s: Cannot reserve %s resource 0x%lx @ 0x%lx, "
- "aborting\n", dfx_use_mmio ? "MMIO" : "I/O", print_name,
- (long)bar_len[0], (long)bar_start[0]);
+ dfx_register_res_err(print_name, dfx_use_mmio,
+ bar_start[0], bar_len[0]);
err = -EBUSY;
goto err_out_disable;
}
if (bar_start[1] != 0) {
- region = request_region(bar_start[1], bar_len[1], print_name);
+ region = request_region(bar_start[1], bar_len[1],
+ bdev->driver->name);
if (!region) {
- pr_err("%s: Cannot reserve I/O resource "
- "0x%lx @ 0x%lx, aborting\n", print_name,
- (long)bar_len[1], (long)bar_start[1]);
+ dfx_register_res_err(print_name, 0,
+ bar_start[1], bar_len[1]);
err = -EBUSY;
goto err_out_csr_region;
}
}
if (bar_start[2] != 0) {
- region = request_region(bar_start[2], bar_len[2], print_name);
+ region = request_region(bar_start[2], bar_len[2],
+ bdev->driver->name);
if (!region) {
- pr_err("%s: Cannot reserve I/O resource "
- "0x%lx @ 0x%lx, aborting\n", print_name,
- (long)bar_len[2], (long)bar_start[2]);
+ dfx_register_res_err(print_name, 0,
+ bar_start[2], bar_len[2]);
err = -EBUSY;
goto err_out_bh_region;
}
@@ -721,7 +725,6 @@ static void dfx_bus_init(struct net_device *dev)
int dfx_bus_pci = dev_is_pci(bdev);
int dfx_bus_eisa = DFX_BUS_EISA(bdev);
int dfx_bus_tc = DFX_BUS_TC(bdev);
- int dfx_use_mmio = DFX_MMIO || dfx_bus_tc;
u8 val;
DBG_printk("In dfx_bus_init...\n");
@@ -1041,7 +1044,6 @@ static int dfx_driver_init(struct net_device *dev, const char *print_name,
int dfx_bus_pci = dev_is_pci(bdev);
int dfx_bus_eisa = DFX_BUS_EISA(bdev);
int dfx_bus_tc = DFX_BUS_TC(bdev);
- int dfx_use_mmio = DFX_MMIO || dfx_bus_tc;
int alloc_size; /* total buffer size needed */
char *top_v, *curr_v; /* virtual addrs into memory block */
dma_addr_t top_p, curr_p; /* physical addrs into memory block */
@@ -3695,8 +3697,6 @@ static void dfx_unregister(struct device *bdev)
struct net_device *dev = dev_get_drvdata(bdev);
DFX_board_t *bp = netdev_priv(dev);
int dfx_bus_pci = dev_is_pci(bdev);
- int dfx_bus_tc = DFX_BUS_TC(bdev);
- int dfx_use_mmio = DFX_MMIO || dfx_bus_tc;
resource_size_t bar_start[3] = {0}; /* pointers to ports */
resource_size_t bar_len[3] = {0}; /* resource lengths */
int alloc_size; /* total buffer size used */
@@ -3716,7 +3716,7 @@ static void dfx_unregister(struct device *bdev)
dfx_bus_uninit(dev);
- dfx_get_bars(bdev, bar_start, bar_len);
+ dfx_get_bars(bp, bar_start, bar_len);
if (bar_start[2] != 0)
release_region(bar_start[2], bar_len[2]);
if (bar_start[1] != 0)
@@ -3748,7 +3748,7 @@ static const struct pci_device_id dfx_pci_table[] = {
MODULE_DEVICE_TABLE(pci, dfx_pci_table);
static struct pci_driver dfx_pci_driver = {
- .name = "defxx",
+ .name = DRV_NAME,
.id_table = dfx_pci_table,
.probe = dfx_pci_register,
.remove = dfx_pci_unregister,
@@ -3779,7 +3779,7 @@ MODULE_DEVICE_TABLE(eisa, dfx_eisa_table);
static struct eisa_driver dfx_eisa_driver = {
.id_table = dfx_eisa_table,
.driver = {
- .name = "defxx",
+ .name = DRV_NAME,
.bus = &eisa_bus_type,
.probe = dfx_dev_register,
.remove = dfx_dev_unregister,
@@ -3800,7 +3800,7 @@ MODULE_DEVICE_TABLE(tc, dfx_tc_table);
static struct tc_driver dfx_tc_driver = {
.id_table = dfx_tc_table,
.driver = {
- .name = "defxx",
+ .name = DRV_NAME,
.bus = &tc_bus_type,
.probe = dfx_dev_register,
.remove = dfx_dev_unregister,
generated by cgit v1.2.3 (git 2.39.0) at 2025-11-01 02:06:58 +0300