summaryrefslogtreecommitdiffstats
path: root/drivers/net/myri10ge/myri10ge.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/myri10ge/myri10ge.c')
-rw-r--r--drivers/net/myri10ge/myri10ge.c64
1 files changed, 48 insertions, 16 deletions
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index e0b47cc8a86..fb2c0927d3c 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -239,6 +239,7 @@ struct myri10ge_priv {
int watchdog_resets;
int watchdog_pause;
int pause;
+ bool fw_name_allocated;
char *fw_name;
char eeprom_strings[MYRI10GE_EEPROM_STRINGS_SIZE];
char *product_code_string;
@@ -271,6 +272,7 @@ MODULE_FIRMWARE("myri10ge_eth_z8e.dat");
MODULE_FIRMWARE("myri10ge_rss_ethp_z8e.dat");
MODULE_FIRMWARE("myri10ge_rss_eth_z8e.dat");
+/* Careful: must be accessed under kparam_block_sysfs_write */
static char *myri10ge_fw_name = NULL;
module_param(myri10ge_fw_name, charp, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(myri10ge_fw_name, "Firmware image name");
@@ -376,6 +378,14 @@ static inline void put_be32(__be32 val, __be32 __iomem * p)
static struct net_device_stats *myri10ge_get_stats(struct net_device *dev);
+static void set_fw_name(struct myri10ge_priv *mgp, char *name, bool allocated)
+{
+ if (mgp->fw_name_allocated)
+ kfree(mgp->fw_name);
+ mgp->fw_name = name;
+ mgp->fw_name_allocated = allocated;
+}
+
static int
myri10ge_send_cmd(struct myri10ge_priv *mgp, u32 cmd,
struct myri10ge_cmd *data, int atomic)
@@ -747,7 +757,7 @@ static int myri10ge_load_firmware(struct myri10ge_priv *mgp, int adopt)
dev_warn(&mgp->pdev->dev, "via hotplug\n");
}
- mgp->fw_name = "adopted";
+ set_fw_name(mgp, "adopted", false);
mgp->tx_boundary = 2048;
myri10ge_dummy_rdma(mgp, 1);
status = myri10ge_get_firmware_capabilities(mgp);
@@ -1730,8 +1740,7 @@ static int myri10ge_set_rx_csum(struct net_device *netdev, u32 csum_enabled)
if (csum_enabled)
mgp->csum_flag = MXGEFW_FLAGS_CKSUM;
else {
- u32 flags = ethtool_op_get_flags(netdev);
- err = ethtool_op_set_flags(netdev, (flags & ~ETH_FLAG_LRO));
+ netdev->features &= ~NETIF_F_LRO;
mgp->csum_flag = 0;
}
@@ -1900,6 +1909,11 @@ static u32 myri10ge_get_msglevel(struct net_device *netdev)
return mgp->msg_enable;
}
+static int myri10ge_set_flags(struct net_device *netdev, u32 value)
+{
+ return ethtool_op_set_flags(netdev, value, ETH_FLAG_LRO);
+}
+
static const struct ethtool_ops myri10ge_ethtool_ops = {
.get_settings = myri10ge_get_settings,
.get_drvinfo = myri10ge_get_drvinfo,
@@ -1920,7 +1934,7 @@ static const struct ethtool_ops myri10ge_ethtool_ops = {
.set_msglevel = myri10ge_set_msglevel,
.get_msglevel = myri10ge_get_msglevel,
.get_flags = ethtool_op_get_flags,
- .set_flags = ethtool_op_set_flags
+ .set_flags = myri10ge_set_flags
};
static int myri10ge_allocate_rings(struct myri10ge_slice_state *ss)
@@ -3229,7 +3243,7 @@ static void myri10ge_firmware_probe(struct myri10ge_priv *mgp)
* load the optimized firmware (which assumes aligned PCIe
* completions) in order to see if it works on this host.
*/
- mgp->fw_name = myri10ge_fw_aligned;
+ set_fw_name(mgp, myri10ge_fw_aligned, false);
status = myri10ge_load_firmware(mgp, 1);
if (status != 0) {
goto abort;
@@ -3257,7 +3271,7 @@ static void myri10ge_firmware_probe(struct myri10ge_priv *mgp)
abort:
/* fall back to using the unaligned firmware */
mgp->tx_boundary = 2048;
- mgp->fw_name = myri10ge_fw_unaligned;
+ set_fw_name(mgp, myri10ge_fw_unaligned, false);
}
@@ -3280,7 +3294,7 @@ static void myri10ge_select_firmware(struct myri10ge_priv *mgp)
dev_info(&mgp->pdev->dev, "PCIE x%d Link\n",
link_width);
mgp->tx_boundary = 4096;
- mgp->fw_name = myri10ge_fw_aligned;
+ set_fw_name(mgp, myri10ge_fw_aligned, false);
} else {
myri10ge_firmware_probe(mgp);
}
@@ -3289,22 +3303,29 @@ static void myri10ge_select_firmware(struct myri10ge_priv *mgp)
dev_info(&mgp->pdev->dev,
"Assuming aligned completions (forced)\n");
mgp->tx_boundary = 4096;
- mgp->fw_name = myri10ge_fw_aligned;
+ set_fw_name(mgp, myri10ge_fw_aligned, false);
} else {
dev_info(&mgp->pdev->dev,
"Assuming unaligned completions (forced)\n");
mgp->tx_boundary = 2048;
- mgp->fw_name = myri10ge_fw_unaligned;
+ set_fw_name(mgp, myri10ge_fw_unaligned, false);
}
}
+
+ kparam_block_sysfs_write(myri10ge_fw_name);
if (myri10ge_fw_name != NULL) {
- overridden = 1;
- mgp->fw_name = myri10ge_fw_name;
+ char *fw_name = kstrdup(myri10ge_fw_name, GFP_KERNEL);
+ if (fw_name) {
+ overridden = 1;
+ set_fw_name(mgp, fw_name, true);
+ }
}
+ kparam_unblock_sysfs_write(myri10ge_fw_name);
+
if (mgp->board_number < MYRI10GE_MAX_BOARDS &&
myri10ge_fw_names[mgp->board_number] != NULL &&
strlen(myri10ge_fw_names[mgp->board_number])) {
- mgp->fw_name = myri10ge_fw_names[mgp->board_number];
+ set_fw_name(mgp, myri10ge_fw_names[mgp->board_number], false);
overridden = 1;
}
if (overridden)
@@ -3656,6 +3677,7 @@ static void myri10ge_probe_slices(struct myri10ge_priv *mgp)
struct myri10ge_cmd cmd;
struct pci_dev *pdev = mgp->pdev;
char *old_fw;
+ bool old_allocated;
int i, status, ncpus, msix_cap;
mgp->num_slices = 1;
@@ -3668,17 +3690,23 @@ static void myri10ge_probe_slices(struct myri10ge_priv *mgp)
/* try to load the slice aware rss firmware */
old_fw = mgp->fw_name;
+ old_allocated = mgp->fw_name_allocated;
+ /* don't free old_fw if we override it. */
+ mgp->fw_name_allocated = false;
+
if (myri10ge_fw_name != NULL) {
dev_info(&mgp->pdev->dev, "overriding rss firmware to %s\n",
myri10ge_fw_name);
- mgp->fw_name = myri10ge_fw_name;
+ set_fw_name(mgp, myri10ge_fw_name, false);
} else if (old_fw == myri10ge_fw_aligned)
- mgp->fw_name = myri10ge_fw_rss_aligned;
+ set_fw_name(mgp, myri10ge_fw_rss_aligned, false);
else
- mgp->fw_name = myri10ge_fw_rss_unaligned;
+ set_fw_name(mgp, myri10ge_fw_rss_unaligned, false);
status = myri10ge_load_firmware(mgp, 0);
if (status != 0) {
dev_info(&pdev->dev, "Rss firmware not found\n");
+ if (old_allocated)
+ kfree(old_fw);
return;
}
@@ -3743,6 +3771,8 @@ static void myri10ge_probe_slices(struct myri10ge_priv *mgp)
mgp->num_slices);
if (status == 0) {
pci_disable_msix(pdev);
+ if (old_allocated)
+ kfree(old_fw);
return;
}
if (status > 0)
@@ -3759,7 +3789,7 @@ disable_msix:
abort_with_fw:
mgp->num_slices = 1;
- mgp->fw_name = old_fw;
+ set_fw_name(mgp, old_fw, old_allocated);
myri10ge_load_firmware(mgp, 0);
}
@@ -3989,6 +4019,7 @@ abort_with_enabled:
pci_disable_device(pdev);
abort_with_netdev:
+ set_fw_name(mgp, NULL, false);
free_netdev(netdev);
return status;
}
@@ -4033,6 +4064,7 @@ static void myri10ge_remove(struct pci_dev *pdev)
dma_free_coherent(&pdev->dev, sizeof(*mgp->cmd),
mgp->cmd, mgp->cmd_bus);
+ set_fw_name(mgp, NULL, false);
free_netdev(netdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-22 14:21:31 +0000