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ice: Fix state bits on LLDP mode switch 

DCBX_CAP bits were not being adjusted when switching
between SW and FW controlled LLDP.

Adjust bits to correctly indicate which mode the
LLDP logic is in.

Fixes: b94b013eb6 ("ice: Implement DCBNL support")
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Dave Ertman 2020-11-20 16:38:35 -08:00 committed by Tony Nguyen
parent a6aa7c8f99
commit 0d4907f65d
3 changed files with 11 additions and 2 deletions
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2
drivers/net/ethernet/intel/ice/ice.h
View File

@ -454,9 +454,7 @@ struct ice_pf {
struct ice_hw_port_stats stats_prev;
struct ice_hw hw;
u8 stat_prev_loaded:1; /* has previous stats been loaded */
#ifdef CONFIG_DCB
u16 dcbx_cap;
#endif /* CONFIG_DCB */
u32 tx_timeout_count;
unsigned long tx_timeout_last_recovery;
u32 tx_timeout_recovery_level;

4
drivers/net/ethernet/intel/ice/ice_dcb_nl.c
View File

@ -159,6 +159,10 @@ static u8 ice_dcbnl_setdcbx(struct net_device *netdev, u8 mode)
struct ice_pf *pf = ice_netdev_to_pf(netdev);
struct ice_qos_cfg *qos_cfg;
/* if FW LLDP agent is running, DCBNL not allowed to change mode */
if (test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags))
return ICE_DCB_NO_HW_CHG;
/* No support for LLD_MANAGED modes or CEE+IEEE */
if ((mode & DCB_CAP_DCBX_LLD_MANAGED) ||
((mode & DCB_CAP_DCBX_VER_IEEE) && (mode & DCB_CAP_DCBX_VER_CEE)) ||

7
drivers/net/ethernet/intel/ice/ice_ethtool.c
View File

@ -8,6 +8,7 @@
#include "ice_fltr.h"
#include "ice_lib.h"
#include "ice_dcb_lib.h"
#include <net/dcbnl.h>
struct ice_stats {
char stat_string[ETH_GSTRING_LEN];
@ -1238,6 +1239,9 @@ static int ice_set_priv_flags(struct net_device *netdev, u32 flags)
status = ice_init_pf_dcb(pf, true);
if (status)
dev_warn(dev, "Fail to init DCB\n");
pf->dcbx_cap &= ~DCB_CAP_DCBX_LLD_MANAGED;
pf->dcbx_cap |= DCB_CAP_DCBX_HOST;
} else {
enum ice_status status;
bool dcbx_agent_status;
@ -1280,6 +1284,9 @@ static int ice_set_priv_flags(struct net_device *netdev, u32 flags)
if (status)
dev_dbg(dev, "Fail to enable MIB change events\n");
pf->dcbx_cap &= ~DCB_CAP_DCBX_HOST;
pf->dcbx_cap |= DCB_CAP_DCBX_LLD_MANAGED;
ice_nway_reset(netdev);
}
}