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authorDiana Wang <na.wang@corigine.com>2021-11-19 14:38:03 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-12-01 09:19:04 +0100
commitcc301ad3120719b850d2adfa8bd0bdae08894c09 (patch)
tree7b3b5c6d380d8e2b7c64f6b70d67463013130316 /drivers/net/ethernet/netronome
parent9b44cb67d387f08a99aee702c4cd54e587c6ba91 (diff)
nfp: checking parameter process for rx-usecs/tx-usecs is invalid
[ Upstream commit 3bd6b2a838ba6a3b86d41b077f570b1b61174def ] Use nn->tlv_caps.me_freq_mhz instead of nn->me_freq_mhz to check whether rx-usecs/tx-usecs is valid. This is because nn->tlv_caps.me_freq_mhz represents the clock_freq (MHz) of the flow processing cores (FPC) on the NIC. While nn->me_freq_mhz is not be set. Fixes: ce991ab6662a ("nfp: read ME frequency from vNIC ctrl memory") Signed-off-by: Diana Wang <na.wang@corigine.com> Signed-off-by: Simon Horman <simon.horman@corigine.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/netronome')
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net.h3
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c2
2 files changed, 1 insertions, 4 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net.h b/drivers/net/ethernet/netronome/nfp/nfp_net.h
index df5b748be068..cc2ce452000a 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net.h
@@ -557,7 +557,6 @@ struct nfp_net_dp {
* @exn_name: Name for Exception interrupt
* @shared_handler: Handler for shared interrupts
* @shared_name: Name for shared interrupt
- * @me_freq_mhz: ME clock_freq (MHz)
* @reconfig_lock: Protects @reconfig_posted, @reconfig_timer_active,
* @reconfig_sync_present and HW reconfiguration request
* regs/machinery from async requests (sync must take
@@ -640,8 +639,6 @@ struct nfp_net {
irq_handler_t shared_handler;
char shared_name[IFNAMSIZ + 8];
- u32 me_freq_mhz;
-
bool link_up;
spinlock_t link_status_lock;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
index c036a1d0f8de..cd0c9623f7dd 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
@@ -1347,7 +1347,7 @@ static int nfp_net_set_coalesce(struct net_device *netdev,
* ME timestamp ticks. There are 16 ME clock cycles for each timestamp
* count.
*/
- factor = nn->me_freq_mhz / 16;
+ factor = nn->tlv_caps.me_freq_mhz / 16;
/* Each pair of (usecs, max_frames) fields specifies that interrupts
* should be coalesced until