From: Mintz, Yuval Date: Mon, 29 May 2017 06:53:14 +0000 (+0300) Subject: qed: Cache alignemnt padding to match host X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=fc6575bc498cb86e33a39a399355fd7e74ef2002;p=openwrt%2Fstaging%2Fblogic.git qed: Cache alignemnt padding to match host Improve PCI performance by adjusting padding sizes to match those of the host machine's cacheline. Signed-off-by: Yuval Mintz Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c index 072d950cd8ee..d73e3c265466 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_dev.c +++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c @@ -1227,6 +1227,10 @@ static void qed_init_cache_line_size(struct qed_hwfn *p_hwfn, L1_CACHE_BYTES, wr_mbs); STORE_RT_REG(p_hwfn, PGLUE_REG_B_CACHE_LINE_SIZE_RT_OFFSET, val); + if (val > 0) { + STORE_RT_REG(p_hwfn, PSWRQ2_REG_DRAM_ALIGN_WR_RT_OFFSET, val); + STORE_RT_REG(p_hwfn, PSWRQ2_REG_DRAM_ALIGN_RD_RT_OFFSET, val); + } } static int qed_hw_init_common(struct qed_hwfn *p_hwfn, @@ -1433,8 +1437,15 @@ qed_hw_init_pf_doorbell_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) static int qed_hw_init_port(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, int hw_mode) { - return qed_init_run(p_hwfn, p_ptt, PHASE_PORT, - p_hwfn->port_id, hw_mode); + int rc = 0; + + rc = qed_init_run(p_hwfn, p_ptt, PHASE_PORT, p_hwfn->port_id, hw_mode); + if (rc) + return rc; + + qed_wr(p_hwfn, p_ptt, PGLUE_B_REG_MASTER_WRITE_PAD_ENABLE, 0); + + return 0; } static int qed_hw_init_pf(struct qed_hwfn *p_hwfn, diff --git a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h index 6abf91807265..67172d7a7868 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h +++ b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h @@ -1559,6 +1559,7 @@ #define PGLUE_B_REG_PGL_ADDR_EC_F0_K2 0x2aaf9cUL #define PGLUE_B_REG_PGL_ADDR_F0_F0_K2 0x2aafa0UL #define PGLUE_B_REG_PGL_ADDR_F4_F0_K2 0x2aafa4UL +#define PGLUE_B_REG_MASTER_WRITE_PAD_ENABLE 0x2aae30UL #define NIG_REG_TSGEN_FREECNT_UPDATE_K2 0x509008UL #define CNIG_REG_NIG_PORT0_CONF_K2 0x218200UL