ehea: error handling improvement
Reset a port's resources only if they're actually in an error state
Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ehea/ehea_qmr.c b/drivers/net/ehea/ehea_qmr.c
index a1b4c7e..89128b63 100644
--- a/drivers/net/ehea/ehea_qmr.c
+++ b/drivers/net/ehea/ehea_qmr.c
@@ -229,14 +229,14 @@
int ehea_destroy_cq(struct ehea_cq *cq)
{
- u64 hret;
+ u64 hret, aer, aerr;
if (!cq)
return 0;
hcp_epas_dtor(&cq->epas);
hret = ehea_destroy_cq_res(cq, NORMAL_FREE);
if (hret == H_R_STATE) {
- ehea_error_data(cq->adapter, cq->fw_handle);
+ ehea_error_data(cq->adapter, cq->fw_handle, &aer, &aerr);
hret = ehea_destroy_cq_res(cq, FORCE_FREE);
}
@@ -357,7 +357,7 @@
int ehea_destroy_eq(struct ehea_eq *eq)
{
- u64 hret;
+ u64 hret, aer, aerr;
if (!eq)
return 0;
@@ -365,7 +365,7 @@
hret = ehea_destroy_eq_res(eq, NORMAL_FREE);
if (hret == H_R_STATE) {
- ehea_error_data(eq->adapter, eq->fw_handle);
+ ehea_error_data(eq->adapter, eq->fw_handle, &aer, &aerr);
hret = ehea_destroy_eq_res(eq, FORCE_FREE);
}
@@ -540,7 +540,7 @@
int ehea_destroy_qp(struct ehea_qp *qp)
{
- u64 hret;
+ u64 hret, aer, aerr;
if (!qp)
return 0;
@@ -548,7 +548,7 @@
hret = ehea_destroy_qp_res(qp, NORMAL_FREE);
if (hret == H_R_STATE) {
- ehea_error_data(qp->adapter, qp->fw_handle);
+ ehea_error_data(qp->adapter, qp->fw_handle, &aer, &aerr);
hret = ehea_destroy_qp_res(qp, FORCE_FREE);
}
@@ -986,42 +986,45 @@
if (length > EHEA_PAGESIZE)
length = EHEA_PAGESIZE;
- if (type == 0x8) /* Queue Pair */
+ if (type == EHEA_AER_RESTYPE_QP)
ehea_error("QP (resource=%llX) state: AER=0x%llX, AERR=0x%llX, "
"port=%llX", resource, data[6], data[12], data[22]);
-
- if (type == 0x4) /* Completion Queue */
+ else if (type == EHEA_AER_RESTYPE_CQ)
ehea_error("CQ (resource=%llX) state: AER=0x%llX", resource,
data[6]);
-
- if (type == 0x3) /* Event Queue */
+ else if (type == EHEA_AER_RESTYPE_EQ)
ehea_error("EQ (resource=%llX) state: AER=0x%llX", resource,
data[6]);
ehea_dump(data, length, "error data");
}
-void ehea_error_data(struct ehea_adapter *adapter, u64 res_handle)
+u64 ehea_error_data(struct ehea_adapter *adapter, u64 res_handle,
+ u64 *aer, u64 *aerr)
{
unsigned long ret;
u64 *rblock;
+ u64 type = 0;
rblock = (void *)get_zeroed_page(GFP_KERNEL);
if (!rblock) {
ehea_error("Cannot allocate rblock memory.");
- return;
+ goto out;
}
- ret = ehea_h_error_data(adapter->handle,
- res_handle,
- rblock);
+ ret = ehea_h_error_data(adapter->handle, res_handle, rblock);
- if (ret == H_R_STATE)
- ehea_error("No error data is available: %llX.", res_handle);
- else if (ret == H_SUCCESS)
+ if (ret == H_SUCCESS) {
+ type = EHEA_BMASK_GET(ERROR_DATA_TYPE, rblock[2]);
+ *aer = rblock[6];
+ *aerr = rblock[12];
print_error_data(rblock);
- else
+ } else if (ret == H_R_STATE) {
+ ehea_error("No error data available: %llX.", res_handle);
+ } else
ehea_error("Error data could not be fetched: %llX", res_handle);
free_page((unsigned long)rblock);
+out:
+ return type;
}