[dpdk-dev] [PATCH v2 2/3] net/sfc: use locally stored data for logging

Andrew Rybchenko arybchenko at solarflare.com
Thu May 18 16:00:03 CEST 2017


Required to be able to use logging in the secondary process
where Ethernet device pointer stored in sfc_adapter is invalid.

Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
Reviewed-by: Andy Moreton <amoreton at solarflare.com>
---
v2:
 - fix clang/icc build error bacause of local variable initialization
   by the external variable with the same name

 drivers/net/sfc/sfc.h        |  2 ++
 drivers/net/sfc/sfc_debug.h  | 10 ++++------
 drivers/net/sfc/sfc_ethdev.c |  3 +++
 drivers/net/sfc/sfc_log.h    | 14 ++++++--------
 4 files changed, 15 insertions(+), 14 deletions(-)

diff --git a/drivers/net/sfc/sfc.h b/drivers/net/sfc/sfc.h
index 7927678..772a713 100644
--- a/drivers/net/sfc/sfc.h
+++ b/drivers/net/sfc/sfc.h
@@ -179,6 +179,8 @@ struct sfc_adapter {
 	 */
 	rte_spinlock_t			lock;
 	enum sfc_adapter_state		state;
+	struct rte_pci_addr		pci_addr;
+	uint16_t			port_id;
 	struct rte_eth_dev		*eth_dev;
 	struct rte_kvargs		*kvargs;
 	bool				debug_init;
diff --git a/drivers/net/sfc/sfc_debug.h b/drivers/net/sfc/sfc_debug.h
index f4fe044..92eba9c 100644
--- a/drivers/net/sfc/sfc_debug.h
+++ b/drivers/net/sfc/sfc_debug.h
@@ -47,14 +47,12 @@
 /* Log PMD message, automatically add prefix and \n */
 #define sfc_panic(sa, fmt, args...) \
 	do {								\
-		const struct rte_eth_dev *_dev = (sa)->eth_dev;		\
-		const struct rte_pci_device *_pci_dev =			\
-			RTE_ETH_DEV_TO_PCI(_dev);			\
+		const struct sfc_adapter *_sa = (sa);			\
 									\
 		rte_panic("sfc " PCI_PRI_FMT " #%" PRIu8 ": " fmt "\n",	\
-			  _pci_dev->addr.domain, _pci_dev->addr.bus,	\
-			  _pci_dev->addr.devid, _pci_dev->addr.function,\
-			  _dev->data->port_id, ##args);			\
+			  _sa->pci_addr.domain, _sa->pci_addr.bus,	\
+			  _sa->pci_addr.devid, _sa->pci_addr.function,	\
+			  _sa->port_id, ##args);			\
 	} while (0)
 
 #endif /* _SFC_DEBUG_H_ */
diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index e4f051a..d6bba1d 100644
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c
@@ -1513,6 +1513,9 @@ sfc_eth_dev_init(struct rte_eth_dev *dev)
 	sfc_register_dp();
 
 	/* Required for logging */
+	sa->pci_addr = pci_dev->addr;
+	sa->port_id = dev->data->port_id;
+
 	sa->eth_dev = dev;
 
 	/* Copy PCI device info to the dev->data */
diff --git a/drivers/net/sfc/sfc_log.h b/drivers/net/sfc/sfc_log.h
index d0f8921..b1a9df4 100644
--- a/drivers/net/sfc/sfc_log.h
+++ b/drivers/net/sfc/sfc_log.h
@@ -35,18 +35,16 @@
 /* Log PMD message, automatically add prefix and \n */
 #define SFC_LOG(sa, level, ...) \
 	do {								\
-		const struct rte_eth_dev *_dev = (sa)->eth_dev;		\
-		const struct rte_pci_device *_pci_dev =			\
-			RTE_ETH_DEV_TO_PCI(_dev);			\
+		const struct sfc_adapter *__sa = (sa);			\
 									\
 		RTE_LOG(level, PMD,					\
 			RTE_FMT("sfc_efx " PCI_PRI_FMT " #%" PRIu8 ": "	\
 				RTE_FMT_HEAD(__VA_ARGS__,) "\n",	\
-				_pci_dev->addr.domain,			\
-				_pci_dev->addr.bus,			\
-				_pci_dev->addr.devid,			\
-				_pci_dev->addr.function,		\
-				_dev->data->port_id,			\
+				__sa->pci_addr.domain,			\
+				__sa->pci_addr.bus,			\
+				__sa->pci_addr.devid,			\
+				__sa->pci_addr.function,		\
+				__sa->port_id,				\
 				RTE_FMT_TAIL(__VA_ARGS__,)));		\
 	} while (0)
 
-- 
2.9.4



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