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authorJakub Kicinski <[email protected]>2021-08-13 13:41:22 +0000
committerJakub Kicinski <[email protected]>2021-08-13 13:41:22 +0000
commitf4083a752a3b7dc2076432129c8469d02c25318e (patch)
tree6518d6c858a630508466906e30683d60bbef9748 /net/smc/smc_tx.c
parentdt-bindings: net: qcom,ipa: make imem interconnect optional (diff)
parentMerge tag 'net-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/net... (diff)
downloadkernel-f4083a752a3b7dc2076432129c8469d02c25318e.tar.gz
kernel-f4083a752a3b7dc2076432129c8469d02c25318e.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts: drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h 9e26680733d5 ("bnxt_en: Update firmware call to retrieve TX PTP timestamp") 9e518f25802c ("bnxt_en: 1PPS functions to configure TSIO pins") 099fdeda659d ("bnxt_en: Event handler for PPS events") kernel/bpf/helpers.c include/linux/bpf-cgroup.h a2baf4e8bb0f ("bpf: Fix potentially incorrect results with bpf_get_local_storage()") c7603cfa04e7 ("bpf: Add ambient BPF runtime context stored in current") drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c 5957cc557dc5 ("net/mlx5: Set all field of mlx5_irq before inserting it to the xarray") 2d0b41a37679 ("net/mlx5: Refcount mlx5_irq with integer") MAINTAINERS 7b637cd52f02 ("MAINTAINERS: fix Microchip CAN BUS Analyzer Tool entry typo") 7d901a1e878a ("net: phy: add Maxlinear GPY115/21x/24x driver") Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'net/smc/smc_tx.c')
-rw-r--r--net/smc/smc_tx.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/net/smc/smc_tx.c b/net/smc/smc_tx.c
index 289025cd545a..c79361dfcdfb 100644
--- a/net/smc/smc_tx.c
+++ b/net/smc/smc_tx.c
@@ -496,7 +496,7 @@ static int smc_tx_rdma_writes(struct smc_connection *conn,
/* Wakeup sndbuf consumers from any context (IRQ or process)
* since there is more data to transmit; usable snd_wnd as max transmit
*/
-static int smcr_tx_sndbuf_nonempty(struct smc_connection *conn)
+static int _smcr_tx_sndbuf_nonempty(struct smc_connection *conn)
{
struct smc_cdc_producer_flags *pflags = &conn->local_tx_ctrl.prod_flags;
struct smc_link *link = conn->lnk;
@@ -550,6 +550,22 @@ out_unlock:
return rc;
}
+static int smcr_tx_sndbuf_nonempty(struct smc_connection *conn)
+{
+ struct smc_link *link = conn->lnk;
+ int rc = -ENOLINK;
+
+ if (!link)
+ return rc;
+
+ atomic_inc(&link->wr_tx_refcnt);
+ if (smc_link_usable(link))
+ rc = _smcr_tx_sndbuf_nonempty(conn);
+ if (atomic_dec_and_test(&link->wr_tx_refcnt))
+ wake_up_all(&link->wr_tx_wait);
+ return rc;
+}
+
static int smcd_tx_sndbuf_nonempty(struct smc_connection *conn)
{
struct smc_cdc_producer_flags *pflags = &conn->local_tx_ctrl.prod_flags;