*/
#include <linux/platform_device.h>
+#include <linux/acpi.h>
#include <rdma/ib_umem.h>
#include "hns_roce_common.h"
#include "hns_roce_device.h"
* @enable: true -- drop reset, false -- reset
* return 0 - success , negative --fail
*/
-int hns_roce_v1_reset(struct hns_roce_dev *hr_dev, bool enable)
+int hns_roce_v1_reset(struct hns_roce_dev *hr_dev, bool dereset)
{
struct device_node *dsaf_node;
struct device *dev = &hr_dev->pdev->dev;
struct device_node *np = dev->of_node;
+ struct fwnode_handle *fwnode;
int ret;
- dsaf_node = of_parse_phandle(np, "dsaf-handle", 0);
- if (!dsaf_node) {
- dev_err(dev, "Unable to get dsaf node by dsaf-handle!\n");
- return -EINVAL;
+ /* check if this is DT/ACPI case */
+ if (dev_of_node(dev)) {
+ dsaf_node = of_parse_phandle(np, "dsaf-handle", 0);
+ if (!dsaf_node) {
+ dev_err(dev, "could not find dsaf-handle\n");
+ return -EINVAL;
+ }
+ fwnode = &dsaf_node->fwnode;
+ } else if (is_acpi_device_node(dev->fwnode)) {
+ struct acpi_reference_args args;
+
+ ret = acpi_node_get_property_reference(dev->fwnode,
+ "dsaf-handle", 0, &args);
+ if (ret) {
+ dev_err(dev, "could not find dsaf-handle\n");
+ return ret;
+ }
+ fwnode = acpi_fwnode_handle(args.adev);
+ } else {
+ dev_err(dev, "cannot read data from DT or ACPI\n");
+ return -ENXIO;
}
- ret = hns_dsaf_roce_reset(&dsaf_node->fwnode, false);
+ ret = hns_dsaf_roce_reset(fwnode, false);
if (ret)
return ret;
- if (enable) {
+ if (dereset) {
msleep(SLEEP_TIME_INTERVAL);
- return hns_dsaf_roce_reset(&dsaf_node->fwnode, true);
+ ret = hns_dsaf_roce_reset(fwnode, true);
}
- return 0;
+ return ret;
}
void hns_roce_v1_profile(struct hns_roce_dev *hr_dev)
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
-
+#include <linux/acpi.h>
#include <linux/of_platform.h>
#include <rdma/ib_addr.h>
#include <rdma/ib_smi.h>
return ret;
}
+static const struct of_device_id hns_roce_of_match[] = {
+ { .compatible = "hisilicon,hns-roce-v1", .data = &hns_roce_hw_v1, },
+ {},
+};
+MODULE_DEVICE_TABLE(of, hns_roce_of_match);
+
+static const struct acpi_device_id hns_roce_acpi_match[] = {
+ { "HISI00D1", (kernel_ulong_t)&hns_roce_hw_v1 },
+ {},
+};
+MODULE_DEVICE_TABLE(acpi, hns_roce_acpi_match);
+
+static int hns_roce_node_match(struct device *dev, void *fwnode)
+{
+ return dev->fwnode == fwnode;
+}
+
+static struct
+platform_device *hns_roce_find_pdev(struct fwnode_handle *fwnode)
+{
+ struct device *dev;
+
+ /* get the 'device'corresponding to matching 'fwnode' */
+ dev = bus_find_device(&platform_bus_type, NULL,
+ fwnode, hns_roce_node_match);
+ /* get the platform device */
+ return dev ? to_platform_device(dev) : NULL;
+}
+
static int hns_roce_get_cfg(struct hns_roce_dev *hr_dev)
{
int i;
+ int ret;
u8 phy_port;
int port_cnt = 0;
struct device *dev = &hr_dev->pdev->dev;
- struct device_node *np = dev->of_node;
struct device_node *net_node;
struct net_device *netdev = NULL;
struct platform_device *pdev = NULL;
struct resource *res;
- if (of_device_is_compatible(np, "hisilicon,hns-roce-v1")) {
- hr_dev->hw = &hns_roce_hw_v1;
+ /* check if we are compatible with the underlying SoC */
+ if (dev_of_node(dev)) {
+ const struct of_device_id *of_id;
+
+ of_id = of_match_node(hns_roce_of_match, dev->of_node);
+ if (!of_id) {
+ dev_err(dev, "device is not compatible!\n");
+ return -ENXIO;
+ }
+ hr_dev->hw = (struct hns_roce_hw *)of_id->data;
+ if (!hr_dev->hw) {
+ dev_err(dev, "couldn't get H/W specific DT data!\n");
+ return -ENXIO;
+ }
+ } else if (is_acpi_device_node(dev->fwnode)) {
+ const struct acpi_device_id *acpi_id;
+
+ acpi_id = acpi_match_device(hns_roce_acpi_match, dev);
+ if (!acpi_id) {
+ dev_err(dev, "device is not compatible!\n");
+ return -ENXIO;
+ }
+ hr_dev->hw = (struct hns_roce_hw *) acpi_id->driver_data;
+ if (!hr_dev->hw) {
+ dev_err(dev, "couldn't get H/W specific ACPI data!\n");
+ return -ENXIO;
+ }
} else {
- dev_err(dev, "device no compatible!\n");
- return -EINVAL;
+ dev_err(dev, "can't read compatibility data from DT or ACPI\n");
+ return -ENXIO;
}
+ /* get the mapped register base address */
res = platform_get_resource(hr_dev->pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(dev, "memory resource not found!\n");
+ return -EINVAL;
+ }
hr_dev->reg_base = devm_ioremap_resource(dev, res);
if (IS_ERR(hr_dev->reg_base))
return PTR_ERR(hr_dev->reg_base);
+ /* get the RoCE associated ethernet ports or netdevices */
for (i = 0; i < HNS_ROCE_MAX_PORTS; i++) {
- net_node = of_parse_phandle(np, "eth-handle", i);
- if (net_node) {
+ if (dev_of_node(dev)) {
+ net_node = of_parse_phandle(dev->of_node, "eth-handle",
+ i);
+ if (!net_node)
+ continue;
pdev = of_find_device_by_node(net_node);
+ } else if (is_acpi_device_node(dev->fwnode)) {
+ struct acpi_reference_args args;
+ struct fwnode_handle *fwnode;
+
+ ret = acpi_node_get_property_reference(dev->fwnode,
+ "eth-handle",
+ i, &args);
+ if (ret)
+ continue;
+ fwnode = acpi_fwnode_handle(args.adev);
+ pdev = hns_roce_find_pdev(fwnode);
+ } else {
+ dev_err(dev, "cannot read data from DT or ACPI\n");
+ return -ENXIO;
+ }
+
+ if (pdev) {
netdev = platform_get_drvdata(pdev);
phy_port = (u8)i;
if (netdev) {
hr_dev->iboe.netdevs[port_cnt] = netdev;
hr_dev->iboe.phy_port[port_cnt] = phy_port;
} else {
+ dev_err(dev, "no netdev found with pdev %s\n",
+ pdev->name);
return -ENODEV;
}
port_cnt++;
}
if (port_cnt == 0) {
- dev_err(dev, "Unable to get available port by eth-handle!\n");
+ dev_err(dev, "unable to get eth-handle for available ports!\n");
return -EINVAL;
}
hr_dev->caps.num_ports = port_cnt;
- /* Cmd issue mode: 0 is poll, 1 is event */
+ /* cmd issue mode: 0 is poll, 1 is event */
hr_dev->cmd_mod = 1;
hr_dev->loop_idc = 0;
+ /* read the interrupt names from the DT or ACPI */
+ ret = device_property_read_string_array(dev, "interrupt-names",
+ hr_dev->irq_names,
+ HNS_ROCE_MAX_IRQ_NUM);
+ if (ret < 0) {
+ dev_err(dev, "couldn't get interrupt names from DT or ACPI!\n");
+ return ret;
+ }
+
+ /* fetch the interrupt numbers */
for (i = 0; i < HNS_ROCE_MAX_IRQ_NUM; i++) {
hr_dev->irq[i] = platform_get_irq(hr_dev->pdev, i);
if (hr_dev->irq[i] <= 0) {
- dev_err(dev, "Get No.%d irq resource failed!\n", i);
+ dev_err(dev, "platform get of irq[=%d] failed!\n", i);
return -EINVAL;
}
-
- if (of_property_read_string_index(np, "interrupt-names", i,
- &hr_dev->irq_names))
- return -EINVAL;
}
return 0;
if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64ULL)) &&
dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32ULL))) {
- dev_err(dev, "No usable DMA addressing mode\n");
+ dev_err(dev, "Not usable DMA addressing mode\n");
ret = -EIO;
goto error_failed_get_cfg;
}
return 0;
}
-static const struct of_device_id hns_roce_of_match[] = {
- { .compatible = "hisilicon,hns-roce-v1",},
- {},
-};
-MODULE_DEVICE_TABLE(of, hns_roce_of_match);
-
static struct platform_driver hns_roce_driver = {
.probe = hns_roce_probe,
.remove = hns_roce_remove,
.driver = {
.name = DRV_NAME,
.of_match_table = hns_roce_of_match,
+ .acpi_match_table = ACPI_PTR(hns_roce_acpi_match),
},
};
projects / users / willy / xarray.git / commitdiff