[dpdk-dev] [PATCH v2] net/ixgbe: Add API to update SBP bit
Shweta Choudaha
shweta.choudaha at gmail.com
Tue Apr 10 17:42:46 CEST 2018
From: Shweta Choudaha <shweta.choudaha at att.com>
Add ixgbe API to enable SBP bit in FCTRL register
to allow receiving packets that may otherwise be
considered length errors by ixgbe and dropped
Signed-off-by: Shweta Choudaha <shweta.choudaha at att.com>
Reviewed-by: Chas Williams <chas3 at att.com>
Reviewed-by: Luca Boccassi <bluca at debian.org>
---
drivers/net/ixgbe/rte_pmd_ixgbe.c | 28 ++++++++++++++++++++++++++++
drivers/net/ixgbe/rte_pmd_ixgbe.h | 13 +++++++++++++
drivers/net/ixgbe/rte_pmd_ixgbe_version.map | 6 ++++++
3 files changed, 47 insertions(+)
diff --git a/drivers/net/ixgbe/rte_pmd_ixgbe.c b/drivers/net/ixgbe/rte_pmd_ixgbe.c
index d8ca8ca31..3b6f68f9e 100644
--- a/drivers/net/ixgbe/rte_pmd_ixgbe.c
+++ b/drivers/net/ixgbe/rte_pmd_ixgbe.c
@@ -880,6 +880,34 @@ rte_pmd_ixgbe_set_tc_bw_alloc(uint16_t port,
return 0;
}
+int __rte_experimental
+rte_pmd_ixgbe_upd_fctrl_sbp(uint16_t port, int enable)
+{
+ struct ixgbe_hw *hw;
+ struct rte_eth_dev *dev;
+ uint32_t fctrl;
+
+ RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+ dev = &rte_eth_devices[port];
+ if (!is_ixgbe_supported(dev))
+ return -ENOTSUP;
+
+ hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ if (!hw)
+ return -ENOTSUP;
+
+ fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
+
+ /* If 'enable' set the SBP bit else clear it */
+ if (enable)
+ fctrl |= IXGBE_FCTRL_SBP;
+ else
+ fctrl &= ~(IXGBE_FCTRL_SBP);
+
+ IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
+ return 0;
+}
+
#ifdef RTE_LIBRTE_IXGBE_BYPASS
int
rte_pmd_ixgbe_bypass_init(uint16_t port_id)
diff --git a/drivers/net/ixgbe/rte_pmd_ixgbe.h b/drivers/net/ixgbe/rte_pmd_ixgbe.h
index 11a9f334b..a3026bd98 100644
--- a/drivers/net/ixgbe/rte_pmd_ixgbe.h
+++ b/drivers/net/ixgbe/rte_pmd_ixgbe.h
@@ -637,4 +637,17 @@ enum {
((x) > RTE_PMD_IXGBE_BYPASS_TMT_OFF && \
(x) < RTE_PMD_IXGBE_BYPASS_TMT_NUM))
+/**
+ * @param port
+ * The port identifier of the Ethernet device.
+ * @param enable
+ * 0 to disable and nonzero to enable 'SBP' bit in FCTRL register
+ * to receive all packets
+ * @return
+ * - (0) if successful.
+ * - (-ENODEV) if *port* invalid.
+ * - (-ENOTSUP) if hardware doesn't support this feature.
+ */
+int __rte_experimental
+rte_pmd_ixgbe_upd_fctrl_sbp(uint16_t port, int enable);
#endif /* _PMD_IXGBE_H_ */
diff --git a/drivers/net/ixgbe/rte_pmd_ixgbe_version.map b/drivers/net/ixgbe/rte_pmd_ixgbe_version.map
index bf776742c..ff6bd0336 100644
--- a/drivers/net/ixgbe/rte_pmd_ixgbe_version.map
+++ b/drivers/net/ixgbe/rte_pmd_ixgbe_version.map
@@ -52,3 +52,9 @@ DPDK_17.08 {
rte_pmd_ixgbe_bypass_wd_timeout_show;
rte_pmd_ixgbe_bypass_wd_timeout_store;
} DPDK_17.05;
+
+EXPERIMENTAL {
+ global:
+
+ rte_pmd_ixgbe_upd_fctrl_sbp;
+} DPDK_18.05;
--
2.11.0
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