igb: move initialization of number of queues into set_interrupt_capability

This patch moves the initialization of the number of queues into
set_interrupt_capability.  This allows the number of queues to increase in
the unlikely event that the system initially fails to allocate enough msi-x
interrupts, does a suspend/resume, and then can allocate enough interrupts
on resume.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index ec5855a10ffb3d6232ef2c12f03100d22c008e2f..6ef0adb7a06d6ca639a6085d083e43ae6c06b72f 100644 (file)
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -543,6 +543,11 @@ static void igb_set_interrupt_capability(struct igb_adapter *adapter)
        int err;
        int numvecs, i;
 
+       /* Number of supported queues. */
+       /* Having more queues than CPUs doesn't make sense. */
+       adapter->num_rx_queues = min_t(u32, IGB_MAX_RX_QUEUES, num_online_cpus());
+       adapter->num_tx_queues = min_t(u32, IGB_MAX_TX_QUEUES, num_online_cpus());
+
        numvecs = adapter->num_tx_queues + adapter->num_rx_queues + 1;
        adapter->msix_entries = kcalloc(numvecs, sizeof(struct msix_entry),
                                        GFP_KERNEL);
@@ -1450,11 +1455,6 @@ static int __devinit igb_sw_init(struct igb_adapter *adapter)
        adapter->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
        adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
 
-       /* Number of supported queues. */
-       /* Having more queues than CPUs doesn't make sense. */
-       adapter->num_rx_queues = min_t(u32, IGB_MAX_RX_QUEUES, num_online_cpus());
-       adapter->num_tx_queues = min_t(u32, IGB_MAX_TX_QUEUES, num_online_cpus());
-
        /* This call may decrease the number of queues depending on
         * interrupt mode. */
        igb_set_interrupt_capability(adapter);