In preparation for optimized reception of zerocopy completion,
revert the Rx side changes introduced by Commit dfb8434b0a94
("selftests/net: add zerocopy support for PF_RDS test case")
Signed-off-by: Sowmini Varadhan <sowmini.varad...@oracle.com>
Acked-by: Willem de Bruijn <will...@google.com>
Acked-by: Santosh Shilimkar <santosh.shilim...@oracle.com>
---
v2: prepare to remove sk_error_queue based path; remove recvmsg() as well,
PF_RDS can also use recv() for the usage pattern in msg_zerocopy
tools/testing/selftests/net/msg_zerocopy.c | 67 ----------------------------
1 files changed, 0 insertions(+), 67 deletions(-)
diff --git a/tools/testing/selftests/net/msg_zerocopy.c
b/tools/testing/selftests/net/msg_zerocopy.c
index 5cc2a53..eff9cf2 100644
--- a/tools/testing/selftests/net/msg_zerocopy.c
+++ b/tools/testing/selftests/net/msg_zerocopy.c
@@ -344,26 +344,6 @@ static int do_setup_tx(int domain, int type, int protocol)
return fd;
}
-static int do_process_zerocopy_cookies(struct sock_extended_err *serr,
- uint32_t *ckbuf, size_t nbytes)
-{
- int ncookies, i;
-
- if (serr->ee_errno != 0)
- error(1, 0, "serr: wrong error code: %u", serr->ee_errno);
- ncookies = serr->ee_data;
- if (ncookies > SO_EE_ORIGIN_MAX_ZCOOKIES)
- error(1, 0, "Returned %d cookies, max expected %d\n",
- ncookies, SO_EE_ORIGIN_MAX_ZCOOKIES);
- if (nbytes != ncookies * sizeof(uint32_t))
- error(1, 0, "Expected %d cookies, got %ld\n",
- ncookies, nbytes/sizeof(uint32_t));
- for (i = 0; i < ncookies; i++)
- if (cfg_verbose >= 2)
- fprintf(stderr, "%d\n", ckbuf[i]);
- return ncookies;
-}
-
static bool do_recv_completion(int fd)
{
struct sock_extended_err *serr;
@@ -372,17 +352,10 @@ static bool do_recv_completion(int fd)
uint32_t hi, lo, range;
int ret, zerocopy;
char control[100];
- uint32_t ckbuf[SO_EE_ORIGIN_MAX_ZCOOKIES];
- struct iovec iov;
msg.msg_control = control;
msg.msg_controllen = sizeof(control);
- iov.iov_base = ckbuf;
- iov.iov_len = (SO_EE_ORIGIN_MAX_ZCOOKIES * sizeof(ckbuf[0]));
- msg.msg_iov = &iov;
- msg.msg_iovlen = 1;
-
ret = recvmsg(fd, &msg, MSG_ERRQUEUE);
if (ret == -1 && errno == EAGAIN)
return false;
@@ -402,10 +375,6 @@ static bool do_recv_completion(int fd)
serr = (void *) CMSG_DATA(cm);
- if (serr->ee_origin == SO_EE_ORIGIN_ZCOOKIE) {
- completions += do_process_zerocopy_cookies(serr, ckbuf, ret);
- return true;
- }
if (serr->ee_origin != SO_EE_ORIGIN_ZEROCOPY)
error(1, 0, "serr: wrong origin: %u", serr->ee_origin);
if (serr->ee_errno != 0)
@@ -631,40 +600,6 @@ static void do_flush_datagram(int fd, int type)
bytes += cfg_payload_len;
}
-
-static void do_recvmsg(int fd)
-{
- int ret, off = 0;
- char *buf;
- struct iovec iov;
- struct msghdr msg;
- struct sockaddr_storage din;
-
- buf = calloc(cfg_payload_len, sizeof(char));
- iov.iov_base = buf;
- iov.iov_len = cfg_payload_len;
-
- memset(&msg, 0, sizeof(msg));
- msg.msg_name = &din;
- msg.msg_namelen = sizeof(din);
- msg.msg_iov = &iov;
- msg.msg_iovlen = 1;
-
- ret = recvmsg(fd, &msg, MSG_TRUNC);
-
- if (ret == -1)
- error(1, errno, "recv");
- if (ret != cfg_payload_len)
- error(1, 0, "recv: ret=%u != %u", ret, cfg_payload_len);
-
- if (memcmp(buf + off, payload, ret))
- error(1, 0, "recv: data mismatch");
-
- free(buf);
- packets++;
- bytes += cfg_payload_len;
-}
-
static void do_rx(int domain, int type, int protocol)
{
uint64_t tstop;
@@ -676,8 +611,6 @@ static void do_rx(int domain, int type, int protocol)
do {
if (type == SOCK_STREAM)
do_flush_tcp(fd);
- else if (domain == PF_RDS)
- do_recvmsg(fd);
else
do_flush_datagram(fd, type);
--
1.7.1
