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cxgbe(4): Fix page fault in t4_get_lb_stats with 2 port T5 cards.

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PR:		250449
Reported by:	freqlabs@
MFC after:	1 week
Sponsored by:	Chelsio Communications
This commit is contained in:
Navdeep Parhar 2020-10-19 20:08:47 +00:00
parent e7f6b6cf69
commit 3f3e04a062
1 changed files with 12 additions and 9 deletions
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21
sys/dev/cxgbe/common/t4_hw.c
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@ -6957,7 +6957,6 @@ void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p)
*/
void t4_get_lb_stats(struct adapter *adap, int idx, struct lb_port_stats *p)
{
u32 bgmap = adap2pinfo(adap, idx)->mps_bg_map;
#define GET_STAT(name) \
t4_read_reg64(adap, \
@ -6982,14 +6981,18 @@ void t4_get_lb_stats(struct adapter *adap, int idx, struct lb_port_stats *p)
p->frames_1519_max = GET_STAT(1519B_MAX);
p->drop = GET_STAT(DROP_FRAMES);
p->ovflow0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_LB_DROP_FRAME) : 0;
p->ovflow1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_LB_DROP_FRAME) : 0;
p->ovflow2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_LB_DROP_FRAME) : 0;
p->ovflow3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_LB_DROP_FRAME) : 0;
p->trunc0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_LB_TRUNC_FRAME) : 0;
p->trunc1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_LB_TRUNC_FRAME) : 0;
p->trunc2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_LB_TRUNC_FRAME) : 0;
p->trunc3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_LB_TRUNC_FRAME) : 0;
if (idx < adap->params.nports) {
u32 bg = adap2pinfo(adap, idx)->mps_bg_map;
p->ovflow0 = (bg & 1) ? GET_STAT_COM(RX_BG_0_LB_DROP_FRAME) : 0;
p->ovflow1 = (bg & 2) ? GET_STAT_COM(RX_BG_1_LB_DROP_FRAME) : 0;
p->ovflow2 = (bg & 4) ? GET_STAT_COM(RX_BG_2_LB_DROP_FRAME) : 0;
p->ovflow3 = (bg & 8) ? GET_STAT_COM(RX_BG_3_LB_DROP_FRAME) : 0;
p->trunc0 = (bg & 1) ? GET_STAT_COM(RX_BG_0_LB_TRUNC_FRAME) : 0;
p->trunc1 = (bg & 2) ? GET_STAT_COM(RX_BG_1_LB_TRUNC_FRAME) : 0;
p->trunc2 = (bg & 4) ? GET_STAT_COM(RX_BG_2_LB_TRUNC_FRAME) : 0;
p->trunc3 = (bg & 8) ? GET_STAT_COM(RX_BG_3_LB_TRUNC_FRAME) : 0;
}
#undef GET_STAT
#undef GET_STAT_COM