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path: root/drivers/net/cxgb3/sge.c
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Diffstat (limited to 'drivers/net/cxgb3/sge.c')
-rw-r--r--drivers/net/cxgb3/sge.c30
1 files changed, 22 insertions, 8 deletions
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index 318a018..67e61b2 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -42,6 +42,7 @@
#include "sge_defs.h"
#include "t3_cpl.h"
#include "firmware_exports.h"
+#include "cxgb3_offload.h"
#define USE_GTS 0
@@ -196,13 +197,13 @@ static inline void refill_rspq(struct adapter *adapter,
/**
* need_skb_unmap - does the platform need unmapping of sk_buffs?
*
- * Returns true if the platfrom needs sk_buff unmapping. The compiler
+ * Returns true if the platform needs sk_buff unmapping. The compiler
* optimizes away unecessary code if this returns true.
*/
static inline int need_skb_unmap(void)
{
/*
- * This structure is used to tell if the platfrom needs buffer
+ * This structure is used to tell if the platform needs buffer
* unmapping by checking if DECLARE_PCI_UNMAP_ADDR defines anything.
*/
struct dummy {
@@ -480,6 +481,7 @@ static inline void ring_fl_db(struct adapter *adap, struct sge_fl *q)
{
if (q->pend_cred >= q->credits / 4) {
q->pend_cred = 0;
+ wmb();
t3_write_reg(adap, A_SG_KDOORBELL, V_EGRCNTX(q->cntxt_id));
}
}
@@ -2286,11 +2288,14 @@ static int process_responses(struct adapter *adap, struct sge_qset *qs,
while (likely(budget_left && is_new_response(r, q))) {
int packet_complete, eth, ethpad = 2, lro = qs->lro_enabled;
struct sk_buff *skb = NULL;
- u32 len, flags = ntohl(r->flags);
- __be32 rss_hi = *(const __be32 *)r,
- rss_lo = r->rss_hdr.rss_hash_val;
+ u32 len, flags;
+ __be32 rss_hi, rss_lo;
+ rmb();
eth = r->rss_hdr.opcode == CPL_RX_PKT;
+ rss_hi = *(const __be32 *)r;
+ rss_lo = r->rss_hdr.rss_hash_val;
+ flags = ntohl(r->flags);
if (unlikely(flags & F_RSPD_ASYNC_NOTIF)) {
skb = alloc_skb(AN_PKT_SIZE, GFP_ATOMIC);
@@ -2501,7 +2506,10 @@ static int process_pure_responses(struct adapter *adap, struct sge_qset *qs,
refill_rspq(adap, q, q->credits);
q->credits = 0;
}
- } while (is_new_response(r, q) && is_pure_response(r));
+ if (!is_new_response(r, q))
+ break;
+ rmb();
+ } while (is_pure_response(r));
if (sleeping)
check_ring_db(adap, qs, sleeping);
@@ -2535,6 +2543,7 @@ static inline int handle_responses(struct adapter *adap, struct sge_rspq *q)
if (!is_new_response(r, q))
return -1;
+ rmb();
if (is_pure_response(r) && process_pure_responses(adap, qs, r) == 0) {
t3_write_reg(adap, A_SG_GTS, V_RSPQ(q->cntxt_id) |
V_NEWTIMER(q->holdoff_tmr) | V_NEWINDEX(q->cidx));
@@ -2833,8 +2842,13 @@ void t3_sge_err_intr_handler(struct adapter *adapter)
}
if (status & (F_HIPIODRBDROPERR | F_LOPIODRBDROPERR))
- CH_ALERT(adapter, "SGE dropped %s priority doorbell\n",
- status & F_HIPIODRBDROPERR ? "high" : "lo");
+ queue_work(cxgb3_wq, &adapter->db_drop_task);
+
+ if (status & (F_HIPRIORITYDBFULL | F_LOPRIORITYDBFULL))
+ queue_work(cxgb3_wq, &adapter->db_full_task);
+
+ if (status & (F_HIPRIORITYDBEMPTY | F_LOPRIORITYDBEMPTY))
+ queue_work(cxgb3_wq, &adapter->db_empty_task);
t3_write_reg(adapter, A_SG_INT_CAUSE, status);
if (status & SGE_FATALERR)
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