From patchwork Wed Jul 18 12:06:12 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ganesh Goudar X-Patchwork-Id: 945690 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=chelsio.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 41Vwq92YNMz9s21 for ; Wed, 18 Jul 2018 22:06:29 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729280AbeGRMoD (ORCPT ); Wed, 18 Jul 2018 08:44:03 -0400 Received: from stargate.chelsio.com ([12.32.117.8]:17823 "EHLO stargate.chelsio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726297AbeGRMoD (ORCPT ); Wed, 18 Jul 2018 08:44:03 -0400 Received: from localhost (victim.blr.asicdesigners.com [10.193.185.129]) by stargate.chelsio.com (8.13.8/8.13.8) with ESMTP id w6IC6E7v021469; Wed, 18 Jul 2018 05:06:15 -0700 From: Ganesh Goudar To: netdev@vger.kernel.org, davem@davemloft.net Cc: nirranjan@chelsio.com, indranil@chelsio.com, Ganesh Goudar , Casey Leedom Subject: [PATCH net-next] cxgb4: display number of rx and tx pages free Date: Wed, 18 Jul 2018 17:36:12 +0530 Message-Id: <1531915572-8850-1-git-send-email-ganeshgr@chelsio.com> X-Mailer: git-send-email 2.1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org display free rx and tx page count in the meminfo of an adapter. Signed-off-by: Casey Leedom Signed-off-by: Ganesh Goudar --- drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 22 +++++++++++++++------- drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | 14 ++++++++++++++ 2 files changed, 29 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c index 511606f..631b78b 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c @@ -2858,6 +2858,7 @@ static int meminfo_show(struct seq_file *seq, void *v) { static const char * const memory[] = { "EDC0:", "EDC1:", "MC:", "MC0:", "MC1:", "HMA:"}; + unsigned int free_rx_cnt, free_tx_cnt; struct adapter *adap = seq->private; struct cudbg_meminfo meminfo; int i, rc; @@ -2889,13 +2890,20 @@ static int meminfo_show(struct seq_file *seq, void *v) mem_region_show(seq, "uP Extmem2:", meminfo.up_extmem2_lo, meminfo.up_extmem2_hi); - seq_printf(seq, "\n%u Rx pages of size %uKiB for %u channels\n", - meminfo.rx_pages_data[0], meminfo.rx_pages_data[1], - meminfo.rx_pages_data[2]); - - seq_printf(seq, "%u Tx pages of size %u%ciB for %u channels\n", - meminfo.tx_pages_data[0], meminfo.tx_pages_data[1], - meminfo.tx_pages_data[2], meminfo.tx_pages_data[3]); + for (i = 0, free_rx_cnt = 0; i < 2; i++) + free_rx_cnt += FREERXPAGECOUNT_G + (t4_read_reg(adap, TP_FLM_FREE_RX_CNT_A)); + seq_printf(seq, "\n%u Rx pages (%u free) of size %uKiB for %u channels\n", + meminfo.rx_pages_data[0], free_rx_cnt, + meminfo.rx_pages_data[1], meminfo.rx_pages_data[2]); + + for (i = 0, free_tx_cnt = 0; i < 4; i++) + free_tx_cnt += FREETXPAGECOUNT_G + (t4_read_reg(adap, TP_FLM_FREE_TX_CNT_A)); + seq_printf(seq, "%u Tx pages (%u free) of size %u%ciB for %u channels\n", + meminfo.tx_pages_data[0], free_tx_cnt, + meminfo.tx_pages_data[1], meminfo.tx_pages_data[2], + meminfo.tx_pages_data[3]); seq_printf(seq, "%u p-structs\n\n", meminfo.p_structs); diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h index 446aaff..da88588 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h @@ -1502,6 +1502,20 @@ #define TP_MIB_DATA_A 0x7e54 #define TP_INT_CAUSE_A 0x7e74 +#define TP_FLM_FREE_RX_CNT_A 0x7e84 + +#define FREERXPAGECOUNT_S 0 +#define FREERXPAGECOUNT_M 0x1fffffU +#define FREERXPAGECOUNT_V(x) ((x) << FREERXPAGECOUNT_S) +#define FREERXPAGECOUNT_G(x) (((x) >> FREERXPAGECOUNT_S) & FREERXPAGECOUNT_M) + +#define TP_FLM_FREE_TX_CNT_A 0x7e88 + +#define FREETXPAGECOUNT_S 0 +#define FREETXPAGECOUNT_M 0x1fffffU +#define FREETXPAGECOUNT_V(x) ((x) << FREETXPAGECOUNT_S) +#define FREETXPAGECOUNT_G(x) (((x) >> FREETXPAGECOUNT_S) & FREETXPAGECOUNT_M) + #define FLMTXFLSTEMPTY_S 30 #define FLMTXFLSTEMPTY_V(x) ((x) << FLMTXFLSTEMPTY_S) #define FLMTXFLSTEMPTY_F FLMTXFLSTEMPTY_V(1U)