diff options
Diffstat (limited to 'drivers/net/ethernet/cisco/enic/enic_main.c')
| -rw-r--r-- | drivers/net/ethernet/cisco/enic/enic_main.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c index 142c9b5509ae..9027fc1cc5f7 100644 --- a/drivers/net/ethernet/cisco/enic/enic_main.c +++ b/drivers/net/ethernet/cisco/enic/enic_main.c @@ -45,6 +45,7 @@ #ifdef CONFIG_NET_RX_BUSY_POLL #include <net/busy_poll.h> #endif +#include <linux/crash_dump.h> #include "cq_enet_desc.h" #include "vnic_dev.h" @@ -2265,6 +2266,18 @@ static void enic_dev_deinit(struct enic *enic) enic_clear_intr_mode(enic); } +static void enic_kdump_kernel_config(struct enic *enic) +{ + if (is_kdump_kernel()) { + dev_info(enic_get_dev(enic), "Running from within kdump kernel. Using minimal resources\n"); + enic->rq_count = 1; + enic->wq_count = 1; + enic->config.rq_desc_count = ENIC_MIN_RQ_DESCS; + enic->config.wq_desc_count = ENIC_MIN_WQ_DESCS; + enic->config.mtu = min_t(u16, 1500, enic->config.mtu); + } +} + static int enic_dev_init(struct enic *enic) { struct device *dev = enic_get_dev(enic); @@ -2294,6 +2307,10 @@ static int enic_dev_init(struct enic *enic) enic_get_res_counts(enic); + /* modify resource count if we are in kdump_kernel + */ + enic_kdump_kernel_config(enic); + /* Set interrupt mode based on resource counts and system * capabilities */ |