When changing channels from combined to rx/tx or vice versa, the code
uses the wrong "sh" parameter to determine if we are reserving rings
for shared or non-shared mode. It should be using the ethtool requested
"sh" parameter instead of the current "sh" parameter.
Fix it by passing the "sh" parameter to bnxt_reserve_rings(). For
ethtool, we will pass in the requested "sh" parameter.
Fixes: 391be5c27364 ("bnxt_en: Implement new scheme to reserve tx rings.")
Signed-off-by: Michael Chan <michael.c...@broadcom.com>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 9 +++------
drivers/net/ethernet/broadcom/bnxt/bnxt.h | 3 ++-
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 3 ++-
drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | 2 +-
4 files changed, 8 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 415694d..d9830d0 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -6918,16 +6918,13 @@ static void bnxt_sp_task(struct work_struct *work)
}
/* Under rtnl_lock */
-int bnxt_reserve_rings(struct bnxt *bp, int tx, int rx, int tcs, int tx_xdp)
+int bnxt_reserve_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs,
+ int tx_xdp)
{
int max_rx, max_tx, tx_sets = 1;
int tx_rings_needed;
- bool sh = true;
int rc;
- if (!(bp->flags & BNXT_FLAG_SHARED_RINGS))
- sh = false;
-
if (tcs)
tx_sets = tcs;
@@ -7135,7 +7132,7 @@ int bnxt_setup_mq_tc(struct net_device *dev, u8 tc)
sh = true;
rc = bnxt_reserve_rings(bp, bp->tx_nr_rings_per_tc, bp->rx_nr_rings,
- tc, bp->tx_nr_rings_xdp);
+ sh, tc, bp->tx_nr_rings_xdp);
if (rc)
return rc;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 3c9d484..f34691f 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1301,7 +1301,8 @@ int bnxt_hwrm_func_rgtr_async_events(struct bnxt *bp,
unsigned long *bmap,
int bnxt_half_open_nic(struct bnxt *bp);
void bnxt_half_close_nic(struct bnxt *bp);
int bnxt_close_nic(struct bnxt *, bool, bool);
-int bnxt_reserve_rings(struct bnxt *bp, int tx, int rx, int tcs, int tx_xdp);
+int bnxt_reserve_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs,
+ int tx_xdp);
int bnxt_setup_mq_tc(struct net_device *dev, u8 tc);
int bnxt_get_max_rings(struct bnxt *, int *, int *, bool);
void bnxt_restore_pf_fw_resources(struct bnxt *bp);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index fd11815..be6acad 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -432,7 +432,8 @@ static int bnxt_set_channels(struct net_device *dev,
}
tx_xdp = req_rx_rings;
}
- rc = bnxt_reserve_rings(bp, req_tx_rings, req_rx_rings, tcs, tx_xdp);
+ rc = bnxt_reserve_rings(bp, req_tx_rings, req_rx_rings, sh, tcs,
+ tx_xdp);
if (rc) {
netdev_warn(dev, "Unable to allocate the requested rings\n");
return rc;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
index 7d67552..3961a68 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
@@ -170,7 +170,7 @@ static int bnxt_xdp_set(struct bnxt *bp, struct bpf_prog
*prog)
if (!tc)
tc = 1;
rc = bnxt_reserve_rings(bp, bp->tx_nr_rings_per_tc, bp->rx_nr_rings,
- tc, tx_xdp);
+ true, tc, tx_xdp);
if (rc) {
netdev_warn(dev, "Unable to reserve enough TX rings to support
XDP.\n");
return rc;
--
1.8.3.1
