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bnx2x: Fix bnx2x_panic_dump for VFs 

bnx2x_panic_dump() prints all kind of driver information, including slowpath
information. Since VFs don't initialize slowpath information, a VF reaching
this flow will likely cause a panic in the system as it will access NULL
pointers.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yuval Mintz 2014-02-12 18:19:55 +02:00 committed by David S. Miller
parent 3a3534ecf2
commit 0155a27cda
1 changed files with 54 additions and 37 deletions
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41
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
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@ -918,7 +918,7 @@ void bnx2x_panic_dump(struct bnx2x *bp, bool disable_int)
u16 start = 0, end = 0;
u8 cos;
#endif
if (disable_int)
if (IS_PF(bp) && disable_int)
bnx2x_int_disable(bp);
bp->stats_state = STATS_STATE_DISABLED;
@ -929,24 +929,31 @@ void bnx2x_panic_dump(struct bnx2x *bp, bool disable_int)
/* Indices */
/* Common */
if (IS_PF(bp)) {
struct host_sp_status_block *def_sb = bp->def_status_blk;
int data_size, cstorm_offset;
BNX2X_ERR("def_idx(0x%x) def_att_idx(0x%x) attn_state(0x%x) spq_prod_idx(0x%x) next_stats_cnt(0x%x)\n",
bp->def_idx, bp->def_att_idx, bp->attn_state,
bp->spq_prod_idx, bp->stats_counter);
BNX2X_ERR("DSB: attn bits(0x%x) ack(0x%x) id(0x%x) idx(0x%x)\n",
bp->def_status_blk->atten_status_block.attn_bits,
bp->def_status_blk->atten_status_block.attn_bits_ack,
bp->def_status_blk->atten_status_block.status_block_id,
bp->def_status_blk->atten_status_block.attn_bits_index);
def_sb->atten_status_block.attn_bits,
def_sb->atten_status_block.attn_bits_ack,
def_sb->atten_status_block.status_block_id,
def_sb->atten_status_block.attn_bits_index);
BNX2X_ERR(" def (");
for (i = 0; i < HC_SP_SB_MAX_INDICES; i++)
pr_cont("0x%x%s",
bp->def_status_blk->sp_sb.index_values[i],
def_sb->sp_sb.index_values[i],
(i == HC_SP_SB_MAX_INDICES - 1) ? ") " : " ");
for (i = 0; i < sizeof(struct hc_sp_status_block_data)/sizeof(u32); i++)
*((u32 *)&sp_sb_data + i) = REG_RD(bp, BAR_CSTRORM_INTMEM +
CSTORM_SP_STATUS_BLOCK_DATA_OFFSET(func) +
i*sizeof(u32));
data_size = sizeof(struct hc_sp_status_block_data) /
sizeof(u32);
cstorm_offset = CSTORM_SP_STATUS_BLOCK_DATA_OFFSET(func);
for (i = 0; i < data_size; i++)
*((u32 *)&sp_sb_data + i) =
REG_RD(bp, BAR_CSTRORM_INTMEM + cstorm_offset +
i * sizeof(u32));
pr_cont("igu_sb_id(0x%x) igu_seg_id(0x%x) pf_id(0x%x) vnic_id(0x%x) vf_id(0x%x) vf_valid (0x%x) state(0x%x)\n",
sp_sb_data.igu_sb_id,
@ -956,6 +963,7 @@ void bnx2x_panic_dump(struct bnx2x *bp, bool disable_int)
sp_sb_data.p_func.vf_id,
sp_sb_data.p_func.vf_valid,
sp_sb_data.state);
}
for_each_eth_queue(bp, i) {
struct bnx2x_fastpath *fp = &bp->fp[i];
@ -1013,6 +1021,11 @@ void bnx2x_panic_dump(struct bnx2x *bp, bool disable_int)
pr_cont("0x%x%s",
fp->sb_index_values[j],
(j == loop - 1) ? ")" : " ");
/* VF cannot access FW refelection for status block */
if (IS_VF(bp))
continue;
/* fw sb data */
data_size = CHIP_IS_E1x(bp) ?
sizeof(struct hc_status_block_data_e1x) :
@ -1064,7 +1077,7 @@ void bnx2x_panic_dump(struct bnx2x *bp, bool disable_int)
}
#ifdef BNX2X_STOP_ON_ERROR
if (IS_PF(bp)) {
/* event queue */
BNX2X_ERR("eq cons %x prod %x\n", bp->eq_cons, bp->eq_prod);
for (i = 0; i < NUM_EQ_DESC; i++) {
@ -1073,7 +1086,9 @@ void bnx2x_panic_dump(struct bnx2x *bp, bool disable_int)
BNX2X_ERR("event queue [%d]: header: opcode %d, error %d\n",
i, bp->eq_ring[i].message.opcode,
bp->eq_ring[i].message.error);
BNX2X_ERR("data: %x %x %x\n", data[0], data[1], data[2]);
BNX2X_ERR("data: %x %x %x\n",
data[0], data[1], data[2]);
}
}
/* Rings */
@ -1140,8 +1155,10 @@ void bnx2x_panic_dump(struct bnx2x *bp, bool disable_int)
}
}
#endif
if (IS_PF(bp)) {
bnx2x_fw_dump(bp);
bnx2x_mc_assert(bp);
}
BNX2X_ERR("end crash dump -----------------\n");
}