From 1211bb6dcd935c48e864d4eecbf8a684e982419a Mon Sep 17 00:00:00 2001 From: Thomas Klein Date: Thu, 26 Apr 2007 11:56:43 +0200 Subject: [PATCH] ehea: fix for dlpar support Certain resources may only be allocated when first logical port is available, and must be removed when last logical port has been removed. Signed-off-by: Thomas Klein Signed-off-by: Jeff Garzik --- drivers/net/ehea/ehea.h | 2 +- drivers/net/ehea/ehea_main.c | 67 +++++++++++++++++++++++++++++--------------- 2 files changed, 46 insertions(+), 23 deletions(-) diff --git a/drivers/net/ehea/ehea.h b/drivers/net/ehea/ehea.h index 136a6c1..602872d 100644 --- a/drivers/net/ehea/ehea.h +++ b/drivers/net/ehea/ehea.h @@ -39,7 +39,7 @@ #include #define DRV_NAME "ehea" -#define DRV_VERSION "EHEA_0057" +#define DRV_VERSION "EHEA_0058" #define EHEA_MSG_DEFAULT (NETIF_MSG_LINK | NETIF_MSG_TIMER \ | NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR) diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c index 368f8e3..c7a5614 100644 --- a/drivers/net/ehea/ehea_main.c +++ b/drivers/net/ehea/ehea_main.c @@ -2133,6 +2133,28 @@ static int ehea_clean_all_portres(struct ehea_port *port) return ret; } +static void ehea_remove_adapter_mr (struct ehea_adapter *adapter) +{ + int i; + + for (i=0; i < EHEA_MAX_PORTS; i++) + if (adapter->port[i]) + return; + + ehea_rem_mr(&adapter->mr); +} + +static int ehea_add_adapter_mr (struct ehea_adapter *adapter) +{ + int i; + + for (i=0; i < EHEA_MAX_PORTS; i++) + if (adapter->port[i]) + return 0; + + return ehea_reg_kernel_mr(adapter, &adapter->mr); +} + static int ehea_up(struct net_device *dev) { int ret, i; @@ -2583,7 +2605,6 @@ static int ehea_setup_ports(struct ehea_adapter *adapter) struct device_node *eth_dn = NULL; u32 *dn_log_port_id; - int port_setup_ok = 0; int i = 0; lhea_dn = adapter->ebus_dev->ofdev.node; @@ -2597,6 +2618,12 @@ static int ehea_setup_ports(struct ehea_adapter *adapter) continue; } + if (ehea_add_adapter_mr(adapter)) { + ehea_error("creating MR failed"); + of_node_put(eth_dn); + return -EIO; + } + adapter->port[i] = ehea_setup_single_port(adapter, *dn_log_port_id, eth_dn); @@ -2604,18 +2631,13 @@ static int ehea_setup_ports(struct ehea_adapter *adapter) ehea_info("%s -> logical port id #%d", adapter->port[i]->netdev->name, *dn_log_port_id); + else + ehea_remove_adapter_mr(adapter); + i++; }; - /* Check for succesfully set up ports */ - for (i = 0; i < EHEA_MAX_PORTS; i++) - if (adapter->port[i]) - port_setup_ok++; - - if (port_setup_ok) - return 0; /* At least some ports are setup correctly */ - - return -EINVAL; + return 0; } static struct device_node *ehea_get_eth_dn(struct ehea_adapter *adapter, @@ -2667,6 +2689,11 @@ static ssize_t ehea_probe_port(struct device *dev, return -EINVAL; } + if (ehea_add_adapter_mr(adapter)) { + ehea_error("creating MR failed"); + return -EIO; + } + port = ehea_setup_single_port(adapter, logical_port_id, eth_dn); of_node_put(eth_dn); @@ -2680,8 +2707,10 @@ static ssize_t ehea_probe_port(struct device *dev, ehea_info("added %s (logical port id=%d)", port->netdev->name, logical_port_id); - } else + } else { + ehea_remove_adapter_mr(adapter); return -EIO; + } return (ssize_t) count; } @@ -2716,6 +2745,8 @@ static ssize_t ehea_remove_port(struct device *dev, return -EINVAL; } + ehea_remove_adapter_mr(adapter); + return (ssize_t) count; } @@ -2776,18 +2807,13 @@ static int __devinit ehea_probe_adapter(struct ibmebus_dev *dev, dev->ofdev.dev.driver_data = adapter; - ret = ehea_reg_kernel_mr(adapter, &adapter->mr); - if (ret) { - dev_err(&dev->ofdev.dev, "reg_mr_adapter failed\n"); - goto out_free_ad; - } /* initialize adapter and ports */ /* get adapter properties */ ret = ehea_sense_adapter_attr(adapter); if (ret) { dev_err(&dev->ofdev.dev, "sense_adapter_attr failed: %d", ret); - goto out_free_res; + goto out_free_ad; } adapter->neq = ehea_create_eq(adapter, @@ -2795,7 +2821,7 @@ static int __devinit ehea_probe_adapter(struct ibmebus_dev *dev, if (!adapter->neq) { ret = -EIO; dev_err(&dev->ofdev.dev, "NEQ creation failed"); - goto out_free_res; + goto out_free_ad; } tasklet_init(&adapter->neq_tasklet, ehea_neq_tasklet, @@ -2840,9 +2866,6 @@ out_free_irq: out_kill_eq: ehea_destroy_eq(adapter->neq); -out_free_res: - ehea_rem_mr(&adapter->mr); - out_free_ad: kfree(adapter); out: @@ -2868,7 +2891,7 @@ static int __devexit ehea_remove(struct ibmebus_dev *dev) tasklet_kill(&adapter->neq_tasklet); ehea_destroy_eq(adapter->neq); - ehea_rem_mr(&adapter->mr); + ehea_remove_adapter_mr(adapter); kfree(adapter); return 0; } -- 2.7.4