From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leon Romanovsky Subject: [PATCH iproute2-next v2 12/19] rdma: Simplify CM_ID print code Date: Sat, 23 Feb 2019 11:15:21 +0200 Message-ID: <20190223091528.8509-13-leon@kernel.org> References: <20190223091528.8509-1-leon@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190223091528.8509-1-leon@kernel.org> Sender: netdev-owner@vger.kernel.org To: David Ahern Cc: Leon Romanovsky , netdev , RDMA mailing list , Stephen Hemminger , Steve Wise List-Id: linux-rdma@vger.kernel.org From: Leon Romanovsky Refactor our the CM_ID print code. Reviewed-by: Steve Wise Signed-off-by: Leon Romanovsky --- rdma/res-cmid.c | 246 ++++++++++++++++++++++++------------------------ 1 file changed, 124 insertions(+), 122 deletions(-) diff --git a/rdma/res-cmid.c b/rdma/res-cmid.c index 5eea7a6b..12d1acee 100644 --- a/rdma/res-cmid.c +++ b/rdma/res-cmid.c @@ -108,11 +108,130 @@ static int ss_ntop(struct nlattr *nla_line, char *addr_str, uint16_t *port) return 0; } +static int res_cm_id_line(struct rd *rd, const char *name, int idx, + struct nlattr *nla_entry) +{ + struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {}; + char src_addr_str[INET6_ADDRSTRLEN]; + char dst_addr_str[INET6_ADDRSTRLEN]; + uint16_t src_port, dst_port; + uint32_t port = 0, pid = 0; + uint8_t type = 0, state; + uint32_t lqpn = 0, ps; + uint32_t cm_idn = 0; + char *comm = NULL; + int err; + + err = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line); + if (err != MNL_CB_OK) + return MNL_CB_ERROR; + + if (!nla_line[RDMA_NLDEV_ATTR_RES_STATE] || + !nla_line[RDMA_NLDEV_ATTR_RES_PS] || + (!nla_line[RDMA_NLDEV_ATTR_RES_PID] && + !nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) { + return MNL_CB_ERROR; + } + + if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX]) + port = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_PORT_INDEX]); + + if (port && port != rd->port_idx) + goto out; + + if (nla_line[RDMA_NLDEV_ATTR_RES_LQPN]) { + lqpn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_LQPN]); + if (rd_check_is_filtered(rd, "lqpn", lqpn)) + goto out; + } + if (nla_line[RDMA_NLDEV_ATTR_RES_TYPE]) { + type = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_TYPE]); + if (rd_check_is_string_filtered(rd, "qp-type", + qp_types_to_str(type))) + goto out; + } + + ps = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PS]); + if (rd_check_is_string_filtered(rd, "ps", cm_id_ps_to_str(ps))) + goto out; + + state = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_STATE]); + if (rd_check_is_string_filtered(rd, "state", cm_id_state_to_str(state))) + goto out; + + if (nla_line[RDMA_NLDEV_ATTR_RES_SRC_ADDR]) { + if (ss_ntop(nla_line[RDMA_NLDEV_ATTR_RES_SRC_ADDR], + src_addr_str, &src_port)) + goto out; + if (rd_check_is_string_filtered(rd, "src-addr", src_addr_str)) + goto out; + if (rd_check_is_filtered(rd, "src-port", src_port)) + goto out; + } + + if (nla_line[RDMA_NLDEV_ATTR_RES_DST_ADDR]) { + if (ss_ntop(nla_line[RDMA_NLDEV_ATTR_RES_DST_ADDR], + dst_addr_str, &dst_port)) + goto out; + if (rd_check_is_string_filtered(rd, "dst-addr", dst_addr_str)) + goto out; + if (rd_check_is_filtered(rd, "dst-port", dst_port)) + goto out; + } + + if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) { + pid = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PID]); + comm = get_task_name(pid); + } + + if (rd_check_is_filtered(rd, "pid", pid)) + goto out; + + if (nla_line[RDMA_NLDEV_ATTR_RES_CM_IDN]) + cm_idn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CM_IDN]); + if (rd_check_is_filtered(rd, "cm-idn", cm_idn)) + goto out; + + if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]) { + /* discard const from mnl_attr_get_str */ + comm = (char *)mnl_attr_get_str( + nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]); + } + + if (rd->json_output) + jsonw_start_array(rd->jw); + + print_link(rd, idx, name, port, nla_line); + if (nla_line[RDMA_NLDEV_ATTR_RES_LQPN]) + res_print_uint(rd, "lqpn", lqpn); + if (nla_line[RDMA_NLDEV_ATTR_RES_TYPE]) + print_qp_type(rd, type); + print_cm_id_state(rd, state); + print_ps(rd, ps); + res_print_uint(rd, "pid", pid); + print_comm(rd, comm, nla_line); + if (nla_line[RDMA_NLDEV_ATTR_RES_CM_IDN]) + res_print_uint(rd, "cm-idn", cm_idn); + + if (nla_line[RDMA_NLDEV_ATTR_RES_SRC_ADDR]) + print_ipaddr(rd, "src-addr", src_addr_str, src_port); + if (nla_line[RDMA_NLDEV_ATTR_RES_DST_ADDR]) + print_ipaddr(rd, "dst-addr", dst_addr_str, dst_port); + + print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]); + newline(rd); + +out: if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) + free(comm); + return MNL_CB_OK; +} + int res_cm_id_parse_cb(const struct nlmsghdr *nlh, void *data) { struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {}; struct nlattr *nla_table, *nla_entry; struct rd *rd = data; + int ret = MNL_CB_OK; const char *name; int idx; @@ -124,129 +243,12 @@ int res_cm_id_parse_cb(const struct nlmsghdr *nlh, void *data) name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]); idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]); nla_table = tb[RDMA_NLDEV_ATTR_RES_CM_ID]; + mnl_attr_for_each_nested(nla_entry, nla_table) { - struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {}; - char src_addr_str[INET6_ADDRSTRLEN]; - char dst_addr_str[INET6_ADDRSTRLEN]; - uint16_t src_port, dst_port; - uint32_t port = 0, pid = 0; - uint8_t type = 0, state; - uint32_t lqpn = 0, ps; - uint32_t cm_idn = 0; - char *comm = NULL; - int err; - - err = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line); - if (err != MNL_CB_OK) - return -EINVAL; + ret = res_cm_id_line(rd, name, idx, nla_entry); - if (!nla_line[RDMA_NLDEV_ATTR_RES_STATE] || - !nla_line[RDMA_NLDEV_ATTR_RES_PS] || - (!nla_line[RDMA_NLDEV_ATTR_RES_PID] && - !nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) { - return MNL_CB_ERROR; - } - - if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX]) - port = mnl_attr_get_u32( - nla_line[RDMA_NLDEV_ATTR_PORT_INDEX]); - - if (port && port != rd->port_idx) - continue; - - if (nla_line[RDMA_NLDEV_ATTR_RES_LQPN]) { - lqpn = mnl_attr_get_u32( - nla_line[RDMA_NLDEV_ATTR_RES_LQPN]); - if (rd_check_is_filtered(rd, "lqpn", lqpn)) - continue; - } - if (nla_line[RDMA_NLDEV_ATTR_RES_TYPE]) { - type = mnl_attr_get_u8( - nla_line[RDMA_NLDEV_ATTR_RES_TYPE]); - if (rd_check_is_string_filtered(rd, "qp-type", - qp_types_to_str(type))) - continue; - } - - ps = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PS]); - if (rd_check_is_string_filtered(rd, "ps", cm_id_ps_to_str(ps))) - continue; - - state = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_STATE]); - if (rd_check_is_string_filtered(rd, "state", - cm_id_state_to_str(state))) - continue; - - if (nla_line[RDMA_NLDEV_ATTR_RES_SRC_ADDR]) { - if (ss_ntop(nla_line[RDMA_NLDEV_ATTR_RES_SRC_ADDR], - src_addr_str, &src_port)) - continue; - if (rd_check_is_string_filtered(rd, "src-addr", - src_addr_str)) - continue; - if (rd_check_is_filtered(rd, "src-port", src_port)) - continue; - } - - if (nla_line[RDMA_NLDEV_ATTR_RES_DST_ADDR]) { - if (ss_ntop(nla_line[RDMA_NLDEV_ATTR_RES_DST_ADDR], - dst_addr_str, &dst_port)) - continue; - if (rd_check_is_string_filtered(rd, "dst-addr", - dst_addr_str)) - continue; - if (rd_check_is_filtered(rd, "dst-port", dst_port)) - continue; - } - - if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) { - pid = mnl_attr_get_u32( - nla_line[RDMA_NLDEV_ATTR_RES_PID]); - comm = get_task_name(pid); - } - - if (rd_check_is_filtered(rd, "pid", pid)) { - free(comm); - continue; - } - - if (nla_line[RDMA_NLDEV_ATTR_RES_CM_IDN]) - cm_idn = mnl_attr_get_u32( - nla_line[RDMA_NLDEV_ATTR_RES_CM_IDN]); - if (rd_check_is_filtered(rd, "cm-idn", cm_idn)) - continue; - - if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]) { - /* discard const from mnl_attr_get_str */ - comm = (char *)mnl_attr_get_str( - nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]); - } - - if (rd->json_output) - jsonw_start_array(rd->jw); - - print_link(rd, idx, name, port, nla_line); - if (nla_line[RDMA_NLDEV_ATTR_RES_LQPN]) - res_print_uint(rd, "lqpn", lqpn); - if (nla_line[RDMA_NLDEV_ATTR_RES_TYPE]) - print_qp_type(rd, type); - print_cm_id_state(rd, state); - print_ps(rd, ps); - res_print_uint(rd, "pid", pid); - print_comm(rd, comm, nla_line); - if (nla_line[RDMA_NLDEV_ATTR_RES_CM_IDN]) - res_print_uint(rd, "cm-idn", cm_idn); - - if (nla_line[RDMA_NLDEV_ATTR_RES_SRC_ADDR]) - print_ipaddr(rd, "src-addr", src_addr_str, src_port); - if (nla_line[RDMA_NLDEV_ATTR_RES_DST_ADDR]) - print_ipaddr(rd, "dst-addr", dst_addr_str, dst_port); - - if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) - free(comm); - - print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]); - newline(rd); + if (ret != MNL_CB_OK) + break; } - return MNL_CB_OK; + return ret; } -- 2.19.1