提交 3f4a6f00 编写于 作者: J John Fastabend 提交者: Jeff Kirsher

ixgbe: remove extra unused queues in DCB + FCoE case

With DCB and FCoE configured extra queues may be allocated and
never used. After this patch we calculate the max correctly.
Signed-off-by: NJohn Fastabend <john.r.fastabend@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: NRoss Brattain <ross.b.brattain@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
上级 95447461
......@@ -7048,6 +7048,7 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
int i, err, pci_using_dac;
u8 part_str[IXGBE_PBANUM_LENGTH];
unsigned int indices = num_possible_cpus();
unsigned int dcb_max = 0;
#ifdef IXGBE_FCOE
u16 device_caps;
#endif
......@@ -7097,15 +7098,16 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
pci_save_state(pdev);
#ifdef CONFIG_IXGBE_DCB
indices *= MAX_TRAFFIC_CLASS;
if (ii->mac == ixgbe_mac_82598EB)
dcb_max = min_t(unsigned int, indices * MAX_TRAFFIC_CLASS,
IXGBE_MAX_RSS_INDICES);
else
dcb_max = min_t(unsigned int, indices * MAX_TRAFFIC_CLASS,
IXGBE_MAX_FDIR_INDICES);
#endif
if (ii->mac == ixgbe_mac_82598EB)
#ifdef CONFIG_IXGBE_DCB
indices = min_t(unsigned int, indices, MAX_TRAFFIC_CLASS * 4);
#else
indices = min_t(unsigned int, indices, IXGBE_MAX_RSS_INDICES);
#endif
else
indices = min_t(unsigned int, indices, IXGBE_MAX_FDIR_INDICES);
......@@ -7113,6 +7115,7 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
indices += min_t(unsigned int, num_possible_cpus(),
IXGBE_MAX_FCOE_INDICES);
#endif
indices = max_t(unsigned int, dcb_max, indices);
netdev = alloc_etherdev_mq(sizeof(struct ixgbe_adapter), indices);
if (!netdev) {
err = -ENOMEM;
......
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