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authorSuresh Reddy <suresh.reddy@broadcom.com>2018-02-06 08:52:42 -0500
committerDavid S. Miller <davem@davemloft.net>2018-02-06 11:48:33 -0500
commitffc39620102dfe62711fadb9a297b66aee816013 (patch)
treebd4cd5c737e6671c4a9d6df536eec18a3dee7171 /drivers/net
parent3df40aad1a864af124bd50a1371ef16089ac9af2 (diff)
downloadlinux-ffc39620102dfe62711fadb9a297b66aee816013.tar.bz2
be2net: Handle transmit completion errors in Lancer
If the driver receives a TX CQE with status as 0x1 or 0x9 or 0xb, the completion indexes should not be used. The driver must stop consuming CQEs from this TXQ/CQ. The TXQ from this point on-wards to be in a bad state. Driver should destroy and recreate the TXQ. 0x1: LANCER_TX_COMP_LSO_ERR 0x9 LANCER_TX_COMP_SGE_ERR 0xb: LANCER_TX_COMP_PARITY_ERR Reset the adapter if driver sees this error in TX completion. Also adding sge error counter in ethtool stats. Signed-off-by: Suresh Reddy <suresh.reddy@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/emulex/benet/be.h7
-rw-r--r--drivers/net/ethernet/emulex/benet/be_ethtool.c1
-rw-r--r--drivers/net/ethernet/emulex/benet/be_hw.h1
-rw-r--r--drivers/net/ethernet/emulex/benet/be_main.c108
4 files changed, 69 insertions, 48 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index 8984c4938881..382891f81e09 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -248,6 +248,7 @@ struct be_tx_stats {
u32 tx_spoof_check_err;
u32 tx_qinq_err;
u32 tx_internal_parity_err;
+ u32 tx_sge_err;
struct u64_stats_sync sync;
struct u64_stats_sync sync_compl;
};
@@ -944,8 +945,10 @@ static inline bool is_ipv6_ext_hdr(struct sk_buff *skb)
#define BE_ERROR_EEH 1
#define BE_ERROR_UE BIT(1)
#define BE_ERROR_FW BIT(2)
-#define BE_ERROR_HW (BE_ERROR_EEH | BE_ERROR_UE)
-#define BE_ERROR_ANY (BE_ERROR_EEH | BE_ERROR_UE | BE_ERROR_FW)
+#define BE_ERROR_TX BIT(3)
+#define BE_ERROR_HW (BE_ERROR_EEH | BE_ERROR_UE | BE_ERROR_TX)
+#define BE_ERROR_ANY (BE_ERROR_EEH | BE_ERROR_UE | BE_ERROR_FW | \
+ BE_ERROR_TX)
#define BE_CLEAR_ALL 0xFF
static inline u8 be_check_error(struct be_adapter *adapter, u32 err_type)
diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c
index 7d1819c9e8cc..7f7e206f95f8 100644
--- a/drivers/net/ethernet/emulex/benet/be_ethtool.c
+++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c
@@ -189,6 +189,7 @@ static const struct be_ethtool_stat et_tx_stats[] = {
* packet data. This counter is applicable only for Lancer adapters.
*/
{DRVSTAT_TX_INFO(tx_internal_parity_err)},
+ {DRVSTAT_TX_INFO(tx_sge_err)},
{DRVSTAT_TX_INFO(tx_bytes)},
{DRVSTAT_TX_INFO(tx_pkts)},
{DRVSTAT_TX_INFO(tx_vxlan_offload_pkts)},
diff --git a/drivers/net/ethernet/emulex/benet/be_hw.h b/drivers/net/ethernet/emulex/benet/be_hw.h
index c967f45705d9..db5f92fb87e0 100644
--- a/drivers/net/ethernet/emulex/benet/be_hw.h
+++ b/drivers/net/ethernet/emulex/benet/be_hw.h
@@ -261,6 +261,7 @@ struct be_eth_hdr_wrb {
#define LANCER_TX_COMP_HSW_DROP_MAC_ERR 0x3
#define LANCER_TX_COMP_HSW_DROP_VLAN_ERR 0x5
#define LANCER_TX_COMP_QINQ_ERR 0x7
+#define LANCER_TX_COMP_SGE_ERR 0x9
#define LANCER_TX_COMP_PARITY_ERR 0xb
#define LANCER_TX_COMP_DMA_ERR 0xd
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 286d591c574e..5774fb6f8aa0 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2583,7 +2583,48 @@ static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp, u32 frags_needed)
}
}
-static struct be_tx_compl_info *be_tx_compl_get(struct be_tx_obj *txo)
+static inline void be_update_tx_err(struct be_tx_obj *txo, u8 status)
+{
+ switch (status) {
+ case BE_TX_COMP_HDR_PARSE_ERR:
+ tx_stats(txo)->tx_hdr_parse_err++;
+ break;
+ case BE_TX_COMP_NDMA_ERR:
+ tx_stats(txo)->tx_dma_err++;
+ break;
+ case BE_TX_COMP_ACL_ERR:
+ tx_stats(txo)->tx_spoof_check_err++;
+ break;
+ }
+}
+
+static inline void lancer_update_tx_err(struct be_tx_obj *txo, u8 status)
+{
+ switch (status) {
+ case LANCER_TX_COMP_LSO_ERR:
+ tx_stats(txo)->tx_tso_err++;
+ break;
+ case LANCER_TX_COMP_HSW_DROP_MAC_ERR:
+ case LANCER_TX_COMP_HSW_DROP_VLAN_ERR:
+ tx_stats(txo)->tx_spoof_check_err++;
+ break;
+ case LANCER_TX_COMP_QINQ_ERR:
+ tx_stats(txo)->tx_qinq_err++;
+ break;
+ case LANCER_TX_COMP_PARITY_ERR:
+ tx_stats(txo)->tx_internal_parity_err++;
+ break;
+ case LANCER_TX_COMP_DMA_ERR:
+ tx_stats(txo)->tx_dma_err++;
+ break;
+ case LANCER_TX_COMP_SGE_ERR:
+ tx_stats(txo)->tx_sge_err++;
+ break;
+ }
+}
+
+static struct be_tx_compl_info *be_tx_compl_get(struct be_adapter *adapter,
+ struct be_tx_obj *txo)
{
struct be_queue_info *tx_cq = &txo->cq;
struct be_tx_compl_info *txcp = &txo->txcp;
@@ -2599,6 +2640,24 @@ static struct be_tx_compl_info *be_tx_compl_get(struct be_tx_obj *txo)
txcp->status = GET_TX_COMPL_BITS(status, compl);
txcp->end_index = GET_TX_COMPL_BITS(wrb_index, compl);
+ if (txcp->status) {
+ if (lancer_chip(adapter)) {
+ lancer_update_tx_err(txo, txcp->status);
+ /* Reset the adapter incase of TSO,
+ * SGE or Parity error
+ */
+ if (txcp->status == LANCER_TX_COMP_LSO_ERR ||
+ txcp->status == LANCER_TX_COMP_PARITY_ERR ||
+ txcp->status == LANCER_TX_COMP_SGE_ERR)
+ be_set_error(adapter, BE_ERROR_TX);
+ } else {
+ be_update_tx_err(txo, txcp->status);
+ }
+ }
+
+ if (be_check_error(adapter, BE_ERROR_TX))
+ return NULL;
+
compl->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
queue_tail_inc(tx_cq);
return txcp;
@@ -2741,7 +2800,7 @@ static void be_tx_compl_clean(struct be_adapter *adapter)
cmpl = 0;
num_wrbs = 0;
txq = &txo->q;
- while ((txcp = be_tx_compl_get(txo))) {
+ while ((txcp = be_tx_compl_get(adapter, txo))) {
num_wrbs +=
be_tx_compl_process(adapter, txo,
txcp->end_index);
@@ -3120,42 +3179,6 @@ loop_continue:
return work_done;
}
-static inline void be_update_tx_err(struct be_tx_obj *txo, u8 status)
-{
- switch (status) {
- case BE_TX_COMP_HDR_PARSE_ERR:
- tx_stats(txo)->tx_hdr_parse_err++;
- break;
- case BE_TX_COMP_NDMA_ERR:
- tx_stats(txo)->tx_dma_err++;
- break;
- case BE_TX_COMP_ACL_ERR:
- tx_stats(txo)->tx_spoof_check_err++;
- break;
- }
-}
-
-static inline void lancer_update_tx_err(struct be_tx_obj *txo, u8 status)
-{
- switch (status) {
- case LANCER_TX_COMP_LSO_ERR:
- tx_stats(txo)->tx_tso_err++;
- break;
- case LANCER_TX_COMP_HSW_DROP_MAC_ERR:
- case LANCER_TX_COMP_HSW_DROP_VLAN_ERR:
- tx_stats(txo)->tx_spoof_check_err++;
- break;
- case LANCER_TX_COMP_QINQ_ERR:
- tx_stats(txo)->tx_qinq_err++;
- break;
- case LANCER_TX_COMP_PARITY_ERR:
- tx_stats(txo)->tx_internal_parity_err++;
- break;
- case LANCER_TX_COMP_DMA_ERR:
- tx_stats(txo)->tx_dma_err++;
- break;
- }
-}
static void be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
int idx)
@@ -3163,16 +3186,9 @@ static void be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
int num_wrbs = 0, work_done = 0;
struct be_tx_compl_info *txcp;
- while ((txcp = be_tx_compl_get(txo))) {
+ while ((txcp = be_tx_compl_get(adapter, txo))) {
num_wrbs += be_tx_compl_process(adapter, txo, txcp->end_index);
work_done++;
-
- if (txcp->status) {
- if (lancer_chip(adapter))
- lancer_update_tx_err(txo, txcp->status);
- else
- be_update_tx_err(txo, txcp->status);
- }
}
if (work_done) {