ehea: Fixed error recovery
Error recovery for QP errors: Reset QPs and dump error information Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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@ -39,7 +39,7 @@
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#include <asm/io.h>
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#define DRV_NAME "ehea"
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#define DRV_VERSION "EHEA_0045"
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#define DRV_VERSION "EHEA_0046"
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#define EHEA_MSG_DEFAULT (NETIF_MSG_LINK | NETIF_MSG_TIMER \
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| NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
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@ -555,6 +555,7 @@ static irqreturn_t ehea_qp_aff_irq_handler(int irq, void *param)
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{
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struct ehea_port *port = param;
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struct ehea_eqe *eqe;
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struct ehea_qp *qp;
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u32 qp_token;
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eqe = ehea_poll_eq(port->qp_eq);
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@ -563,9 +564,14 @@ static irqreturn_t ehea_qp_aff_irq_handler(int irq, void *param)
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qp_token = EHEA_BMASK_GET(EHEA_EQE_QP_TOKEN, eqe->entry);
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ehea_error("QP aff_err: entry=0x%lx, token=0x%x",
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eqe->entry, qp_token);
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qp = port->port_res[qp_token].qp;
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ehea_error_data(port->adapter, qp->fw_handle);
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eqe = ehea_poll_eq(port->qp_eq);
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}
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queue_work(port->adapter->ehea_wq, &port->reset_task);
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return IRQ_HANDLED;
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}
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@ -612,3 +612,13 @@ u64 ehea_h_reset_events(const u64 adapter_handle, const u64 neq_handle,
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event_mask, /* R6 */
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0, 0, 0, 0); /* R7-R12 */
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}
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u64 ehea_h_error_data(const u64 adapter_handle, const u64 ressource_handle,
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void *rblock)
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{
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return ehea_plpar_hcall_norets(H_ERROR_DATA,
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adapter_handle, /* R4 */
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ressource_handle, /* R5 */
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virt_to_abs(rblock), /* R6 */
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0, 0, 0, 0); /* R7-R12 */
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}
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@ -454,4 +454,7 @@ u64 ehea_h_reg_dereg_bcmc(const u64 adapter_handle, const u16 port_num,
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u64 ehea_h_reset_events(const u64 adapter_handle, const u64 neq_handle,
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const u64 event_mask);
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u64 ehea_h_error_data(const u64 adapter_handle, const u64 ressource_handle,
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void *rblock);
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#endif /* __EHEA_PHYP_H__ */
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@ -486,6 +486,7 @@ int ehea_destroy_qp(struct ehea_qp *qp)
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if (!qp)
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return 0;
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ehea_h_disable_and_get_hea(qp->adapter->handle, qp->fw_handle);
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hret = ehea_h_free_resource(qp->adapter->handle, qp->fw_handle);
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if (hret != H_SUCCESS) {
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ehea_error("destroy_qp failed");
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@ -581,4 +582,45 @@ out:
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return ret;
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}
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void print_error_data(u64 *data)
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{
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int length;
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u64 type = EHEA_BMASK_GET(ERROR_DATA_TYPE, data[2]);
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u64 resource = data[1];
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length = EHEA_BMASK_GET(ERROR_DATA_LENGTH, data[0]);
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if (length > EHEA_PAGESIZE)
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length = EHEA_PAGESIZE;
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if (type == 0x8) /* Queue Pair */
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ehea_error("QP (resource=%lX) state: AER=0x%lX, AERR=0x%lX, "
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"port=%lX", resource, data[6], data[12], data[22]);
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ehea_dump(data, length, "error data");
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}
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void ehea_error_data(struct ehea_adapter *adapter, u64 res_handle)
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{
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unsigned long ret;
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u64 *rblock;
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rblock = kzalloc(PAGE_SIZE, GFP_KERNEL);
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if (!rblock) {
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ehea_error("Cannot allocate rblock memory.");
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return;
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}
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ret = ehea_h_error_data(adapter->handle,
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res_handle,
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rblock);
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if (ret == H_R_STATE)
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ehea_error("No error data is available: %lX.", res_handle);
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else if (ret == H_SUCCESS)
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print_error_data(rblock);
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else
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ehea_error("Error data could not be fetched: %lX", res_handle);
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kfree(rblock);
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}
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@ -180,6 +180,9 @@ struct ehea_eqe {
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u64 entry;
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};
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#define ERROR_DATA_LENGTH EHEA_BMASK_IBM(52,63)
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#define ERROR_DATA_TYPE EHEA_BMASK_IBM(0,7)
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static inline void *hw_qeit_calc(struct hw_queue *queue, u64 q_offset)
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{
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struct ehea_page *current_page;
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@ -355,4 +358,6 @@ int ehea_destroy_qp(struct ehea_qp *qp);
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int ehea_reg_mr_adapter(struct ehea_adapter *adapter);
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void ehea_error_data(struct ehea_adapter *adapter, u64 res_handle);
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#endif /* __EHEA_QMR_H__ */
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